:root {
  --color-bg: #f3f5fb;
  --color-surface: #ffffff;
  --color-surface-muted: #eef2ff;
  --color-text: #0f172a;
  --color-text-muted: #475569;
  --color-primary: #3b82f6;
  --color-primary-dark: #1d4ed8;
  --color-accent: #22c55e;
  --color-border: #dbe2f1;
  --color-hero: #0b1220;
  --shadow-soft: 0 10px 30px rgba(15, 23, 42, 0.08);
  --radius-md: 12px;
  --radius-lg: 18px;
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 3rem;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  font-family:
    Inter,
    Segoe UI,
    Roboto,
    Arial,
    sans-serif;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
}
a {
  color: inherit;
}
img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
}
img,
video {
  height: auto;
}
.skip-link {
  position: absolute;
  left: -9999px;
}
.skip-link:focus {
  left: 1rem;
  top: 1rem;
  background: var(--color-surface);
  padding: 0.5rem 0.75rem;
  border-radius: 0.5rem;
  z-index: 1000;
}
.container {
  width: min(1120px, 92%);
  margin-inline: auto;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(11, 18, 32, 0.92);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(6px);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 0;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  flex: 0 0 auto;
  gap: 0.6rem;
  text-decoration: none;
  color: #e2e8f0;
  font-weight: 700;
}

.brand__mark {
  background: linear-gradient(135deg, #60a5fa, #22d3ee);
  color: #0b1220;
  border-radius: 8px;
  padding: 0.25rem 0.5rem;
}

.brand__logo {
  width: 2.5rem;
  height: 2.5rem;
}

.site-nav {
  display: none;
  min-width: 0;
}
.site-nav__list {
  list-style: none;
  margin: 0;
  padding: 0.05rem 0 0.25rem;
  display: flex;
  flex-wrap: nowrap;
  justify-content: flex-start;
  gap: 0.35rem;
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(226, 232, 240, 0.45) transparent;
}
.site-nav__list::-webkit-scrollbar {
  height: 0.45rem;
}
.site-nav__list::-webkit-scrollbar-thumb {
  background: rgba(226, 232, 240, 0.35);
  border-radius: 999px;
}
.site-nav a {
  display: block;
  white-space: nowrap;
  text-decoration: none;
  color: #e2e8f0;
  padding: 0.4rem 0.6rem;
  border-radius: 0.5rem;
  font-size: 0.92rem;
}
.site-nav a[aria-current="page"],
.site-nav a:hover {
  background: rgba(255, 255, 255, 0.14);
}
.nav-toggle {
  background: transparent;
  color: #e2e8f0;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  padding: 0.4rem 0.65rem;
}

.hero {
  background:
    radial-gradient(circle at 82% 12%, rgba(34, 211, 238, 0.38), transparent 24rem), radial-gradient(circle at 10% 94%, rgba(34, 197, 94, 0.18), transparent 22rem),
    linear-gradient(135deg, #08111f 0%, #172554 52%, #0f172a 100%);
  color: #eff6ff;
  padding: 5rem 0 4rem;
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1.15;
  margin: 0.4rem 0 1rem;
  max-width: 18ch;
}
.hero__lead {
  max-width: 62ch;
  color: #cbd5e1;
}
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
  color: #93c5fd;
  font-weight: 700;
}
.hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
  max-width: 42rem;
  margin-top: 1.5rem;
}
.hero__stat {
  border: 1px solid rgba(226, 232, 240, 0.18);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.07);
  padding: 0.85rem 1rem;
  box-shadow: 0 20px 50px rgba(8, 17, 31, 0.16);
}
.hero__stat strong {
  display: block;
  font-size: 1.55rem;
  line-height: 1;
  color: #fff;
}
.hero__stat span {
  display: block;
  margin-top: 0.3rem;
  color: #cbd5e1;
  font-size: 0.9rem;
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}
.button {
  display: inline-block;
  border-radius: 999px;
  padding: 0.7rem 1.1rem;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
}
.button--primary {
  background: var(--color-primary);
  color: #fff;
}
.button--primary:hover {
  background: var(--color-primary-dark);
}
.button--ghost {
  border-color: rgba(255, 255, 255, 0.35);
  color: #eff6ff;
}

.section {
  padding: var(--space-5) 0;
}
.section--alt {
  background: linear-gradient(180deg, #eef2ff, #f8faff);
}
.section__lead {
  max-width: 72ch;
  margin: -0.35rem 0 1.5rem;
  color: var(--color-text-muted);
}
.grid {
  display: grid;
  gap: var(--space-2);
}
.grid--2 {
  grid-template-columns: 1fr;
}
.grid--3 {
  grid-template-columns: 1fr;
}
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-3);
  box-shadow: var(--shadow-soft);
}
.card__meta {
  color: var(--color-text-muted);
  font-size: 0.92rem;
}
.badge {
  display: inline-block;
  margin-top: 0.65rem;
  font-size: 0.8rem;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  background: #dbeafe;
  color: #1d4ed8;
}
.card--active {
  border-color: #93c5fd;
}
.card--upcoming {
  opacity: 0.92;
}
.card--lesson {
  display: flex;
  flex-direction: column;
  min-height: 15.5rem;
}
.card--lesson .text-link {
  margin-top: auto;
  align-self: flex-start;
}
.text-link {
  color: var(--color-primary-dark);
  font-weight: 600;
}
.cta__inner {
  text-align: center;
  background: radial-gradient(circle at top right, rgba(34, 211, 238, 0.22), transparent 18rem), linear-gradient(135deg, #0f172a, #111827);
  color: #e2e8f0;
  padding: 2.2rem;
  border-radius: var(--radius-lg);
}

.lesson-main {
  padding: 2rem 0 3rem;
}
.lesson-layout {
  display: grid;
  gap: 1rem;
}
.lesson-toc {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1rem;
  height: fit-content;
  min-width: 0;
}
.lesson-toc ol {
  padding-left: 1.1rem;
  margin: 0;
  display: grid;
  gap: 0.45rem;
}
.lesson-toc a {
  color: var(--color-text-muted);
  text-decoration: none;
}
.lesson-content {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.2rem;
  min-width: 0;
}
.lesson-section {
  padding: 1rem 0;
  border-top: 1px solid #eef2f7;
}
.lesson-section:first-of-type {
  border-top: 0;
}
.note {
  border-radius: 10px;
  padding: 0.8rem 1rem;
  margin-top: 0.8rem;
}
.note--remember {
  background: #ecfeff;
  border: 1px solid #a5f3fc;
}
.note--practice {
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
}
.flex-demo {
  margin: 1rem 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #f8faff;
}
.flex-demo__row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem;
  border: 1px dashed #93c5fd;
  border-radius: 10px;
}
.flex-demo__item {
  display: inline-block;
  padding: 0.45rem 0.7rem;
  border-radius: 8px;
  background: #dbeafe;
  color: #1e3a8a;
  font-weight: 700;
}
.flex-demo__hint {
  margin-bottom: 0;
  color: var(--color-text-muted);
}
.flex-demo__topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 1rem;
  border-radius: 12px;
  background: #0f172a;
  color: #e2e8f0;
}
.flex-demo__topbar a {
  padding: 0.4rem 0.7rem;
  border-radius: 999px;
  background: var(--color-accent);
  color: #052e16;
  font-weight: 700;
  text-decoration: none;
}
.flex-demo__cards {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}
.flex-demo__card {
  display: flex;
  flex: 1 1 14rem;
  flex-direction: column;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}
.flex-demo__card h3 {
  margin-top: 0.25rem;
}
.flex-demo__media {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}
.flex-demo__media h3 {
  margin-top: 0;
}
.flex-demo__icon {
  flex: 0 0 3rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  border-radius: 10px;
  background: #dbeafe;
  color: #1e3a8a;
  font-weight: 700;
}
.grid-demo {
  margin: 1rem 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #f8faff;
}
.grid-demo__cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}
.grid-demo__card {
  min-height: 5rem;
  display: grid;
  place-items: center;
  padding: 1rem;
  border: 1px solid #bfdbfe;
  border-radius: 10px;
  background: var(--color-surface);
  color: #1e3a8a;
  font-weight: 700;
  text-align: center;
}
.grid-demo__gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr));
  gap: 1rem;
}
.grid-demo__panel,
.grid-demo__metric {
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}
.grid-demo__panel h3,
.grid-demo__metric h3 {
  margin-top: 0.25rem;
}
.grid-demo__dashboard {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr));
  gap: 1rem;
}
.grid-demo__metric {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 8rem;
}
.grid-demo__metric strong {
  color: var(--color-primary-dark);
  font-size: 1.25rem;
}
.grid-demo__metric--main {
  background: #eff6ff;
  border-color: #bfdbfe;
}
.position-demo {
  margin: 1rem 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #f8faff;
}
.position-demo__card {
  position: relative;
  padding: 1.25rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}
.position-demo__badge {
  position: absolute;
  top: 0.85rem;
  right: 0.85rem;
  padding: 0.25rem 0.55rem;
  border-radius: 999px;
  background: var(--color-accent);
  color: #052e16;
  font-size: 0.8rem;
  font-weight: 700;
}
.position-demo--sticky {
  display: grid;
  grid-template-columns: minmax(8rem, 12rem) 1fr;
  gap: 1rem;
  align-items: start;
  max-height: 14rem;
  overflow: auto;
}
.position-demo__sticky {
  position: sticky;
  top: 0.75rem;
  display: grid;
  gap: 0.25rem;
  padding: 0.85rem;
  border: 1px solid #bfdbfe;
  border-radius: 10px;
  background: #eff6ff;
  color: #1e3a8a;
}
.position-demo__sticky span {
  color: var(--color-text-muted);
  font-size: 0.85rem;
}
.position-demo__stack {
  display: grid;
  gap: 0.75rem;
}
.position-demo__stack span {
  display: block;
  min-height: 4.5rem;
  border: 1px dashed #bfdbfe;
  border-radius: 10px;
  background: var(--color-surface);
}
.layer-demo {
  margin: 1rem 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #f8faff;
}
.layer-demo__stage {
  position: relative;
  min-height: 15rem;
  overflow: hidden;
  border: 1px dashed #bfdbfe;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(219, 234, 254, 0.72), rgba(240, 253, 244, 0.72)), var(--color-surface);
}
.layer-demo__layer {
  position: absolute;
  display: grid;
  gap: 0.45rem;
  width: min(13rem, 64%);
  padding: 1rem;
  border: 1px solid rgba(15, 23, 42, 0.12);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
}
.layer-demo__layer--base {
  top: 1rem;
  left: 1rem;
  z-index: 1;
  background: #dbeafe;
  color: #1e3a8a;
}
.layer-demo__layer--middle {
  top: 3.8rem;
  left: 3.5rem;
  z-index: 10;
  background: #dcfce7;
  color: #14532d;
}
.layer-demo__layer--top {
  top: 6.6rem;
  left: 6rem;
  z-index: 50;
  background: #fee2e2;
  color: #7f1d1d;
}
.layer-demo__index {
  display: inline-flex;
  width: fit-content;
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.68);
  font-size: 0.82rem;
  font-weight: 700;
}
.layer-demo--overlay .layer-demo__stage {
  display: grid;
  place-items: center;
  min-height: 18rem;
}
.layer-demo__app {
  position: absolute;
  inset: 1rem;
  display: grid;
  gap: 0.7rem;
  align-content: start;
  padding: 1rem;
  border-radius: var(--radius-md);
  background: #ffffff;
}
.layer-demo__app span {
  display: block;
  height: 2.5rem;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  background: #eef2ff;
}
.layer-demo__app span:first-child {
  width: 65%;
  background: #dbeafe;
}
.layer-demo__backdrop {
  position: absolute;
  inset: 0.75rem;
  z-index: 40;
  border-radius: calc(var(--radius-md) - 2px);
  background: rgba(15, 23, 42, 0.62);
}
.layer-demo__modal {
  position: relative;
  z-index: 50;
  width: min(21rem, calc(100% - 2rem));
  padding: 1.2rem;
  border: 1px solid rgba(15, 23, 42, 0.12);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.24);
}
.layer-demo__modal h3 {
  margin: 0.2rem 0 0.35rem;
}
.layer-demo__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.5rem;
  margin-top: 1rem;
}
.layer-demo__actions span,
.layer-demo__actions strong {
  display: inline-flex;
  align-items: center;
  min-height: 2rem;
  padding: 0.35rem 0.65rem;
  border-radius: 999px;
  font-size: 0.86rem;
}
.layer-demo__actions span {
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
}
.layer-demo__actions strong {
  background: var(--color-primary);
  color: #ffffff;
}
.responsive-demo {
  margin: 1rem 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #f8faff;
}
.responsive-demo__frames {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  align-items: start;
}
.responsive-demo__frame {
  min-width: 0;
  padding: 0.85rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}
.responsive-demo__frame--phone {
  width: min(100%, 15.5rem);
  margin-inline: auto;
}
.responsive-demo__toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  color: var(--color-text-muted);
  font-size: 0.85rem;
}
.responsive-demo__toolbar strong {
  color: var(--color-primary-dark);
}
.responsive-demo__hero {
  min-height: 4.5rem;
  margin-bottom: 0.75rem;
  border-radius: 10px;
  background: linear-gradient(135deg, #bfdbfe, #bbf7d0);
}
.responsive-demo__cards {
  display: grid;
  gap: 0.6rem;
}
.responsive-demo__cards span {
  display: block;
  min-height: 3.2rem;
  border: 1px solid #bfdbfe;
  border-radius: 10px;
  background: #eff6ff;
}
.responsive-demo__frame--desktop .responsive-demo__hero {
  min-height: 5.8rem;
}
.responsive-demo__frame--desktop .responsive-demo__cards {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.query-demo {
  display: grid;
  gap: 1rem;
  margin: 1rem 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #f8faff;
}
.query-demo__step {
  min-width: 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}
.query-demo__label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.8rem;
}
.query-demo__label strong {
  color: var(--color-text);
}
.query-demo__label span {
  color: var(--color-text-muted);
  font-size: 0.85rem;
}
.query-demo__viewport {
  display: grid;
  gap: 0.55rem;
  padding: 0.75rem;
  border: 1px dashed #bfdbfe;
  border-radius: 10px;
  background: #eff6ff;
}
.query-demo__viewport span {
  display: block;
  min-height: 3rem;
  border: 1px solid #bfdbfe;
  border-radius: 8px;
  background: #ffffff;
}
.query-demo__viewport--tablet {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.query-demo__viewport--desktop {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.unit-demo {
  display: grid;
  gap: 1rem;
  margin: 1rem 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #f8faff;
}
.unit-demo__card {
  width: min(100%, 34rem);
  min-width: 0;
  padding: 1.25rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}
.unit-demo__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1rem;
}
.unit-demo__badge {
  display: inline-flex;
  align-items: center;
  padding: 0.35em 0.7em;
  border-radius: 999px;
  background: #dcfce7;
  color: #14532d;
  font-size: 0.86rem;
  font-weight: 700;
}
.unit-demo__bar {
  display: flex;
  align-items: center;
  min-height: 2.75rem;
  margin-bottom: 0.65rem;
  padding: 0.55rem 0.7rem;
  border-radius: 10px;
  background: #eff6ff;
  color: #1e3a8a;
  font-size: 0.85rem;
  font-weight: 700;
}
.unit-demo__bar--wide {
  width: 100%;
}
.unit-demo__bar--text {
  width: min(100%, 34ch);
  background: #ecfeff;
  color: #155e75;
}
.unit-demo__card p {
  max-width: 46ch;
  margin-bottom: 0;
  color: var(--color-text-muted);
}
.unit-demo__viewport {
  display: grid;
  place-items: center;
  min-height: clamp(7rem, 30svh, 14rem);
  border: 1px dashed #93c5fd;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, #dbeafe, #f0fdf4);
  color: var(--color-primary-dark);
  font-weight: 800;
}
.media-demo {
  display: grid;
  gap: 1rem;
  margin: 1rem 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #f8faff;
}
.media-demo__frame {
  min-width: 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}
.media-demo__label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
}
.media-demo__label strong {
  color: var(--color-text);
}
.media-demo__label span {
  color: var(--color-text-muted);
  font-size: 0.85rem;
}
.media-demo__image,
.media-demo__picture {
  overflow: hidden;
  border: 1px solid #bfdbfe;
  border-radius: var(--radius-md);
  background: #eff6ff;
}
.media-demo__image--wide {
  aspect-ratio: 16 / 9;
}
.media-demo__picture {
  aspect-ratio: 4 / 5;
}
.media-demo__image img,
.media-demo__picture img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
.media-demo__comparison {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}
.media-demo__comparison div {
  min-width: 0;
  display: grid;
  gap: 0.45rem;
}
.media-demo__comparison span {
  color: var(--color-text-muted);
  font-size: 0.85rem;
  font-weight: 700;
}
.media-demo__fit {
  width: 100%;
  height: clamp(7rem, 28vw, 10rem);
  border: 1px solid #bfdbfe;
  border-radius: 10px;
  background: #eff6ff;
}
.media-demo__fit--cover {
  object-fit: cover;
}
.media-demo__fit--contain {
  padding: 0.5rem;
  object-fit: contain;
  background: #f8fafc;
}
.fluid-demo {
  display: grid;
  gap: 1rem;
  margin: 1rem 0;
  padding: clamp(1rem, 3vw, 1.5rem);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #f8faff;
}
.fluid-demo__sample {
  min-width: 0;
  padding: clamp(1rem, 3vw, 2rem);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}
.fluid-demo__badge {
  display: inline-flex;
  align-items: center;
  margin-bottom: 0.85rem;
  padding: 0.35em 0.7em;
  border-radius: 999px;
  background: #dcfce7;
  color: #14532d;
  font-size: clamp(0.8rem, 0.76rem + 0.18vw, 0.95rem);
  font-weight: 800;
}
.fluid-demo__sample h3 {
  max-width: 12ch;
  margin: 0 0 0.8rem;
  color: var(--color-text);
  font-size: clamp(1.55rem, 1rem + 2.4vw, 3rem);
  line-height: 1.05;
}
.fluid-demo__sample p {
  max-width: 58ch;
  margin-bottom: 0;
  color: var(--color-text-muted);
  font-size: clamp(0.98rem, 0.92rem + 0.28vw, 1.12rem);
}
.fluid-demo__scale {
  min-width: 0;
  display: grid;
  gap: 0.75rem;
  align-content: center;
  padding: 1rem;
  border: 1px dashed #93c5fd;
  border-radius: var(--radius-md);
  background: #eff6ff;
}
.fluid-demo__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}
.fluid-demo__row strong {
  color: var(--color-primary-dark);
}
.fluid-demo__track {
  min-width: 0;
  padding: 0.35rem;
  border-radius: 999px;
  background: #dbeafe;
}
.fluid-demo__track span {
  display: flex;
  align-items: center;
  min-height: 2rem;
  padding-inline: 0.75rem;
  border-radius: 999px;
  background: #3b82f6;
  color: #ffffff;
  font-size: 0.82rem;
  font-weight: 800;
  white-space: nowrap;
}
.fluid-demo__track--wide span {
  background: #22c55e;
  color: #052e16;
}
.state-demo {
  display: grid;
  gap: 1rem;
  margin: 1rem 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #f8faff;
}
.state-demo__panel {
  min-width: 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}
.state-demo__label {
  display: inline-flex;
  align-items: center;
  margin-bottom: 0.85rem;
  padding: 0.3rem 0.65rem;
  border-radius: 999px;
  background: #eff6ff;
  color: #1e3a8a;
  font-size: 0.82rem;
  font-weight: 800;
}
.state-demo__actions,
.state-demo__states {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 0.9rem;
}
.state-demo__control {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  max-width: 100%;
  padding: 0.7rem 1.05rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font: inherit;
  font-weight: 800;
  line-height: 1.1;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition:
    background-color 0.18s ease,
    border-color 0.18s ease,
    color 0.18s ease,
    box-shadow 0.18s ease,
    transform 0.18s ease;
}
.state-demo__control--primary {
  background: var(--color-primary);
  color: #ffffff;
  box-shadow: 0 10px 22px rgba(59, 130, 246, 0.2);
}
.state-demo__control--primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
}
.state-demo__control--secondary {
  border-color: #bfdbfe;
  background: #ffffff;
  color: var(--color-primary-dark);
}
.state-demo__control--secondary:hover {
  border-color: var(--color-primary);
  background: #eff6ff;
}
.state-demo__control:focus-visible {
  outline: 3px solid #93c5fd;
  outline-offset: 3px;
}
.state-demo__control:active {
  transform: translateY(1px);
  box-shadow: none;
}
.state-demo__control:disabled,
.state-demo__control[aria-disabled="true"] {
  border-color: #cbd5e1;
  background: #e2e8f0;
  color: #64748b;
  box-shadow: none;
  cursor: not-allowed;
  opacity: 0.72;
  transform: none;
}
.state-demo__panel p {
  margin-bottom: 0;
  color: var(--color-text-muted);
}
.state-demo__pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.35rem;
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: #ffffff;
  color: var(--color-text);
  font-size: 0.86rem;
  font-weight: 800;
}
.state-demo__pill--hover {
  border-color: var(--color-primary);
  background: #dbeafe;
  color: var(--color-primary-dark);
}
.state-demo__pill--focus {
  outline: 3px solid #93c5fd;
  outline-offset: 3px;
  border-color: var(--color-primary);
}
.state-demo__pill--active {
  transform: translateY(1px);
  background: #0f172a;
  color: #ffffff;
}
.state-demo__pill--disabled {
  background: #e2e8f0;
  color: #64748b;
  cursor: not-allowed;
  opacity: 0.72;
}
.form-demo {
  display: grid;
  gap: 1rem;
  margin: 1rem 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #f8faff;
}
.form-demo__form,
.form-demo__panel {
  min-width: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}
.form-demo__form {
  display: grid;
  gap: 1rem;
  padding: 1rem;
}
.form-demo__field {
  display: grid;
  gap: 0.42rem;
  min-width: 0;
}
.form-demo__label {
  color: var(--color-text);
  font-size: 0.92rem;
  font-weight: 800;
}
.form-demo__control {
  width: 100%;
  min-height: 2.85rem;
  min-width: 0;
  padding: 0.75rem 0.9rem;
  border: 1px solid #cbd5e1;
  border-radius: 0.75rem;
  background: #ffffff;
  color: var(--color-text);
  font: inherit;
  line-height: 1.25;
  transition:
    border-color 0.18s ease,
    box-shadow 0.18s ease,
    background-color 0.18s ease;
}
.form-demo__control::placeholder {
  color: #94a3b8;
}
.form-demo__control:hover:not(:disabled) {
  border-color: #93c5fd;
}
.form-demo__control:focus-visible {
  border-color: var(--color-primary-dark);
  outline: 3px solid #bfdbfe;
  outline-offset: 2px;
}
.form-demo__control--invalid,
.form-demo__control--invalid:focus-visible {
  border-color: #dc2626;
}
.form-demo__control--invalid:focus-visible {
  outline-color: #fecaca;
}
.form-demo__control--valid,
.form-demo__control--valid:focus-visible {
  border-color: #16a34a;
}
.form-demo__control--valid:focus-visible {
  outline-color: #bbf7d0;
}
.form-demo__control:disabled {
  border-color: #cbd5e1;
  background: #e2e8f0;
  color: #64748b;
  cursor: not-allowed;
}
.form-demo__hint,
.form-demo__message {
  margin: 0;
  font-size: 0.88rem;
}
.form-demo__hint {
  color: var(--color-text-muted);
}
.form-demo__message {
  font-weight: 700;
}
.form-demo__message--error {
  color: #b91c1c;
}
.form-demo__message--success {
  color: #15803d;
}
.form-demo__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  padding-top: 0.25rem;
}
.form-demo__button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0.7rem 1rem;
  border: 1px solid transparent;
  border-radius: 999px;
  background: var(--color-primary);
  color: #ffffff;
  font: inherit;
  font-weight: 800;
  line-height: 1.1;
  cursor: pointer;
  transition:
    background-color 0.18s ease,
    transform 0.18s ease,
    box-shadow 0.18s ease;
  box-shadow: 0 10px 22px rgba(59, 130, 246, 0.2);
}
.form-demo__button:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
}
.form-demo__button:focus-visible {
  outline: 3px solid #93c5fd;
  outline-offset: 3px;
}
.form-demo__button:active {
  box-shadow: none;
  transform: translateY(1px);
}
.form-demo__link {
  color: var(--color-primary-dark);
  font-weight: 800;
  text-decoration-thickness: 0.12em;
  text-underline-offset: 0.2em;
}
.form-demo__link:hover {
  color: var(--color-text);
}
.form-demo__panel {
  display: grid;
  gap: 0.75rem;
  align-content: start;
  padding: 1rem;
}
.form-demo__status {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  min-height: 2.25rem;
  padding: 0.45rem 0.7rem;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: #ffffff;
  color: var(--color-text);
  font-size: 0.86rem;
  font-weight: 800;
}
.form-demo__status--focus {
  outline: 3px solid #bfdbfe;
  outline-offset: 2px;
  border-color: var(--color-primary-dark);
}
.form-demo__status--invalid {
  border-color: #fecaca;
  background: #fef2f2;
  color: #991b1b;
}
.form-demo__status--valid {
  border-color: #bbf7d0;
  background: #f0fdf4;
  color: #166534;
}
.form-demo__status--disabled {
  border-color: #cbd5e1;
  background: #e2e8f0;
  color: #64748b;
}
.form-demo__panel p {
  margin: 0;
  color: var(--color-text-muted);
}
.content-demo {
  display: grid;
  gap: 1rem;
  margin: 1rem 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #f8faff;
}
.content-demo__section {
  min-width: 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}
.content-demo__header {
  max-width: 58ch;
  margin-bottom: 1rem;
}
.content-demo__header h3 {
  margin: 0.25rem 0 0.4rem;
  color: var(--color-text);
  font-size: clamp(1.35rem, 1.1rem + 1vw, 2rem);
  line-height: 1.15;
}
.content-demo__header p {
  margin: 0;
  color: var(--color-text-muted);
}
.content-demo__eyebrow {
  color: var(--color-primary-dark);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.content-demo__layout {
  display: grid;
  gap: 1rem;
}
.content-demo__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: 1rem;
  min-width: 0;
}
.content-demo__card,
.content-demo__aside {
  min-width: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #ffffff;
}
.content-demo__card {
  display: grid;
  gap: 0.75rem;
  align-content: start;
  padding: 1rem;
}
.content-demo__media {
  display: grid;
  place-items: center;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 1px solid #bfdbfe;
  border-radius: 0.75rem;
  background: #dbeafe;
  color: #1e3a8a;
}
.content-demo__media--green {
  border-color: #bbf7d0;
  background: #dcfce7;
  color: #14532d;
}
.content-demo__media span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.65rem;
  height: 2.65rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  font-weight: 900;
}
.content-demo__meta {
  margin: 0;
  color: var(--color-primary-dark);
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.content-demo__card h4,
.content-demo__aside h4 {
  margin: 0;
  color: var(--color-text);
  font-size: 1.05rem;
  line-height: 1.25;
}
.content-demo__card p:not(.content-demo__meta) {
  margin: 0;
  color: var(--color-text-muted);
}
.content-demo__features {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.content-demo__features li {
  padding: 0.25rem 0.55rem;
  border: 1px solid #bfdbfe;
  border-radius: 999px;
  background: #eff6ff;
  color: #1e3a8a;
  font-size: 0.82rem;
  font-weight: 800;
}
.content-demo__link {
  width: fit-content;
  color: var(--color-primary-dark);
  font-weight: 800;
  text-decoration-thickness: 0.12em;
  text-underline-offset: 0.2em;
}
.content-demo__link:hover {
  color: var(--color-text);
}
.content-demo__aside {
  display: grid;
  gap: 0.8rem;
  align-content: start;
  padding: 1rem;
  background: #f8fafc;
}
.content-demo__steps {
  display: grid;
  gap: 0.65rem;
  margin: 0;
  padding-left: 1.25rem;
  color: var(--color-text-muted);
}
.content-demo__steps li::marker {
  color: var(--color-primary-dark);
  font-weight: 900;
}
.nav-demo {
  display: grid;
  gap: 1rem;
  margin: 1rem 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #f8faff;
}
.nav-demo__panel {
  min-width: 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}
.nav-demo__label {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  margin-bottom: 0.7rem;
  padding: 0.3rem 0.65rem;
  border-radius: 999px;
  background: #ecfeff;
  color: #155e75;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.nav-demo__panel h3 {
  margin: 0 0 0.8rem;
  color: var(--color-text);
  font-size: clamp(1.2rem, 1rem + 0.8vw, 1.65rem);
  line-height: 1.2;
}
.nav-demo__primary,
.nav-demo__pagination {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  min-width: 0;
}
.nav-demo__primary {
  margin-bottom: 1rem;
  padding: 0.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #f8fafc;
}
.nav-demo__primary a,
.nav-demo__page {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.4rem;
  max-width: 100%;
  padding: 0.55rem 0.75rem;
  border: 1px solid transparent;
  border-radius: 999px;
  color: var(--color-text-muted);
  font-weight: 800;
  line-height: 1.1;
  text-align: center;
  text-decoration: none;
  transition:
    background-color 0.18s ease,
    border-color 0.18s ease,
    color 0.18s ease,
    transform 0.18s ease;
}
.nav-demo__primary a:hover,
.nav-demo__page:hover {
  border-color: #bfdbfe;
  background: #eff6ff;
  color: var(--color-primary-dark);
}
.nav-demo__primary a:focus-visible,
.nav-demo__page:focus-visible {
  outline: 3px solid #93c5fd;
  outline-offset: 3px;
}
.nav-demo__primary a[aria-current="page"],
.nav-demo__page[aria-current="page"] {
  border-color: #bfdbfe;
  background: #dbeafe;
  color: var(--color-primary-dark);
}
.nav-demo__breadcrumbs {
  min-width: 0;
  padding-top: 0.75rem;
  border-top: 1px solid #eef2f7;
}
.nav-demo__breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.nav-demo__breadcrumbs li {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  font-weight: 700;
}
.nav-demo__breadcrumbs li:not(:last-child)::after {
  content: "/";
  color: #94a3b8;
}
.nav-demo__breadcrumbs a {
  color: var(--color-primary-dark);
  text-decoration-thickness: 0.12em;
  text-underline-offset: 0.2em;
}
.nav-demo__breadcrumbs [aria-current="page"] {
  color: var(--color-text);
}
.nav-demo__page {
  min-width: 2.4rem;
  background: #ffffff;
  border-color: var(--color-border);
}
.nav-demo__page--disabled {
  background: #e2e8f0;
  color: #64748b;
  cursor: not-allowed;
  opacity: 0.78;
}
.nav-demo__page--disabled:hover {
  border-color: var(--color-border);
  background: #e2e8f0;
  color: #64748b;
}
.nav-demo__page--next {
  background: #f0fdf4;
  border-color: #bbf7d0;
  color: #166534;
}
.nav-demo__gap {
  display: inline-flex;
  align-items: center;
  min-height: 2.4rem;
  padding-inline: 0.3rem;
  color: #64748b;
  font-weight: 900;
}
.nav-demo__panel p {
  margin: 0.9rem 0 0;
  color: var(--color-text-muted);
}
.table-demo {
  display: grid;
  gap: 1rem;
  margin: 1rem 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #f8faff;
}
.table-demo__panel {
  min-width: 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}
.table-demo__label {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  margin-bottom: 0.7rem;
  padding: 0.3rem 0.65rem;
  border-radius: 999px;
  background: #fef3c7;
  color: #92400e;
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
}
.table-demo__panel h3 {
  margin: 0 0 0.8rem;
  color: var(--color-text);
  font-size: clamp(1.2rem, 1rem + 0.8vw, 1.65rem);
  line-height: 1.2;
}
.table-demo__table-wrap {
  max-height: 22rem;
  overflow: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #ffffff;
}
.table-demo__table-wrap:focus-visible {
  outline: 3px solid #93c5fd;
  outline-offset: 3px;
}
.table-demo__table {
  width: 100%;
  min-width: 42rem;
  border-collapse: collapse;
  color: var(--color-text);
  font-size: 0.92rem;
  font-variant-numeric: tabular-nums;
}
.table-demo__table caption {
  padding: 0.85rem 1rem;
  color: var(--color-text-muted);
  font-weight: 800;
  text-align: left;
}
.table-demo__table th,
.table-demo__table td {
  padding: 0.8rem 0.9rem;
  border-bottom: 1px solid #e2e8f0;
  text-align: left;
  vertical-align: top;
}
.table-demo__table thead th {
  position: sticky;
  top: 0;
  z-index: 1;
  background: #eff6ff;
  color: #1e3a8a;
}
.table-demo__table tbody th {
  font-weight: 800;
}
.table-demo__table tbody tr:nth-child(even) {
  background: #f8fafc;
}
.table-demo__table tbody tr:hover {
  background: #f0fdf4;
}
.table-demo__number {
  text-align: right;
  white-space: nowrap;
}
.table-demo__status {
  display: inline-flex;
  align-items: center;
  min-height: 1.8rem;
  padding: 0.28rem 0.6rem;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 800;
  white-space: nowrap;
}
.table-demo__status--ok {
  background: #dcfce7;
  color: #166534;
}
.table-demo__status--warn {
  background: #fef3c7;
  color: #92400e;
}
.table-demo__cards {
  display: grid;
  gap: 0.75rem;
}
.table-demo__record {
  min-width: 0;
  padding: 0.9rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #f8fafc;
}
.table-demo__record h4 {
  margin: 0 0 0.65rem;
  color: var(--color-text);
}
.table-demo__record dl {
  display: grid;
  gap: 0.45rem;
  margin: 0;
}
.table-demo__record div {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid #e2e8f0;
}
.table-demo__record div:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}
.table-demo__record dt {
  color: var(--color-text-muted);
  font-weight: 700;
}
.table-demo__record dd {
  margin: 0;
  color: var(--color-text);
  font-weight: 800;
  text-align: right;
}
.table-demo__panel p {
  margin: 0.9rem 0 0;
  color: var(--color-text-muted);
}
.separation-demo {
  display: grid;
  gap: 1rem;
  margin: 1rem 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #f8faff;
}
.separation-demo__panel {
  min-width: 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}
.separation-demo__label {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  margin-bottom: 0.7rem;
  padding: 0.3rem 0.65rem;
  border-radius: 999px;
  background: #ecfeff;
  color: #155e75;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.separation-demo__panel h3 {
  margin: 0 0 0.8rem;
  color: var(--color-text);
  font-size: clamp(1.2rem, 1rem + 0.8vw, 1.65rem);
  line-height: 1.2;
}
.separation-demo__surface-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr));
  gap: 0.85rem;
}
.separation-demo__surface {
  min-width: 0;
  min-height: 12.5rem;
  display: grid;
  gap: 0.55rem;
  align-content: start;
  padding: 1rem;
  border-radius: var(--radius-md);
  background: #ffffff;
}
.separation-demo__surface span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.35rem;
  height: 2.35rem;
  border-radius: 999px;
  background: #eff6ff;
  color: #1e3a8a;
  font-size: 0.82rem;
  font-weight: 900;
}
.separation-demo__surface h4 {
  margin: 0.15rem 0 0;
  color: var(--color-text);
}
.separation-demo__surface p {
  margin: 0;
  color: var(--color-text-muted);
}
.separation-demo__surface--flat {
  background: #f8fafc;
}
.separation-demo__surface--bordered {
  border: 1px solid var(--color-border);
}
.separation-demo__surface--raised {
  border: 1px solid rgba(59, 130, 246, 0.18);
  box-shadow: 0 14px 32px rgba(15, 23, 42, 0.12);
}
.separation-demo__surface--featured {
  border: 1px solid #bbf7d0;
  background: linear-gradient(180deg, #f0fdf4, #ffffff);
  box-shadow: 0 22px 45px rgba(21, 128, 61, 0.16);
}
.separation-demo__surface--featured span {
  background: #dcfce7;
  color: #166534;
}
.separation-demo__tokens {
  display: grid;
  gap: 0.75rem;
}
.separation-demo__token {
  display: grid;
  grid-template-columns: 3.25rem 1fr;
  gap: 0.75rem;
  align-items: center;
  min-width: 0;
  padding: 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #f8fafc;
}
.separation-demo__sample {
  display: block;
  width: 3rem;
  height: 3rem;
  border: 1px solid #bfdbfe;
  background: #eff6ff;
}
.separation-demo__sample--radius-sm {
  border-radius: 0.5rem;
}
.separation-demo__sample--radius-md {
  border-radius: var(--radius-md);
}
.separation-demo__sample--shadow {
  border-color: #bbf7d0;
  border-radius: var(--radius-md);
  background: #f0fdf4;
  box-shadow: 0 12px 26px rgba(15, 23, 42, 0.14);
}
.separation-demo__token p {
  margin: 0;
  color: var(--color-text-muted);
}
.separation-demo__token strong {
  display: block;
  color: var(--color-text);
}
.separation-demo__panel > p {
  margin: 0.9rem 0 0;
  color: var(--color-text-muted);
}
.transform-demo {
  display: grid;
  gap: 1rem;
  margin: 1rem 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #f8faff;
}
.transform-demo__panel {
  min-width: 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}
.transform-demo__label {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  margin-bottom: 0.7rem;
  padding: 0.3rem 0.65rem;
  border-radius: 999px;
  background: #dcfce7;
  color: #166534;
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
}
.transform-demo__panel h3 {
  margin: 0 0 0.8rem;
  color: var(--color-text);
  font-size: clamp(1.2rem, 1rem + 0.8vw, 1.65rem);
  line-height: 1.2;
}
.transform-demo__stage {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(9rem, 1fr));
  gap: 1rem;
  min-width: 0;
  overflow: hidden;
  padding: 1rem;
  border: 1px dashed #bfdbfe;
  border-radius: var(--radius-md);
  background: linear-gradient(90deg, rgba(191, 219, 254, 0.28) 1px, transparent 1px), linear-gradient(180deg, rgba(191, 219, 254, 0.28) 1px, transparent 1px), #f8fafc;
  background-size: 2rem 2rem;
}
.transform-demo__tile {
  min-width: 0;
  min-height: 8.75rem;
  display: grid;
  gap: 0.55rem;
  align-content: center;
  justify-items: center;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #ffffff;
  color: var(--color-text);
  text-align: center;
  box-shadow: 0 10px 22px rgba(15, 23, 42, 0.08);
}
.transform-demo__tile span {
  display: inline-flex;
  align-items: center;
  min-height: 1.8rem;
  padding: 0.25rem 0.55rem;
  border-radius: 999px;
  background: #eff6ff;
  color: #1e3a8a;
  font-size: 0.78rem;
  font-weight: 900;
}
.transform-demo__tile strong {
  line-height: 1.2;
}
.transform-demo__tile--translate {
  transform: translate(0.45rem, -0.45rem);
  border-color: #bbf7d0;
  background: #f0fdf4;
}
.transform-demo__tile--scale {
  transform: scale(1.04);
  border-color: #fde68a;
  background: #fffbeb;
}
.transform-demo__tile--rotate {
  transform: rotate(-5deg);
  border-color: #bfdbfe;
  background: #eff6ff;
}
.transform-demo__origin-list {
  display: grid;
  gap: 0.75rem;
}
.transform-demo__origin-card {
  display: grid;
  grid-template-columns: 4.5rem 1fr;
  gap: 0.8rem;
  align-items: center;
  min-width: 0;
  padding: 0.8rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #f8fafc;
}
.transform-demo__origin-box {
  position: relative;
  display: block;
  width: 3.75rem;
  height: 3.75rem;
  border: 1px solid #93c5fd;
  border-radius: 0.75rem;
  background: #dbeafe;
  transform: rotate(10deg);
}
.transform-demo__origin-box::after {
  content: "";
  position: absolute;
  width: 0.55rem;
  height: 0.55rem;
  border: 2px solid #ffffff;
  border-radius: 999px;
  background: #1d4ed8;
  box-shadow: 0 0 0 1px rgba(29, 78, 216, 0.28);
}
.transform-demo__origin-box--center {
  transform-origin: center;
}
.transform-demo__origin-box--center::after {
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.transform-demo__origin-box--corner {
  transform-origin: top left;
}
.transform-demo__origin-box--corner::after {
  top: -0.35rem;
  left: -0.35rem;
}
.transform-demo__origin-card p {
  margin: 0;
  color: var(--color-text-muted);
}
.transform-demo__origin-card strong {
  display: block;
  color: var(--color-text);
}
.transform-demo__panel > p {
  margin: 0.9rem 0 0;
  color: var(--color-text-muted);
}
.transition-demo {
  display: grid;
  gap: 1rem;
  margin: 1rem 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #f8faff;
}
.transition-demo__panel {
  min-width: 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}
.transition-demo__label {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  margin-bottom: 0.7rem;
  padding: 0.3rem 0.65rem;
  border-radius: 999px;
  background: #fef3c7;
  color: #92400e;
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
}
.transition-demo__panel h3 {
  margin: 0 0 0.8rem;
  color: var(--color-text);
  font-size: clamp(1.2rem, 1rem + 0.8vw, 1.65rem);
  line-height: 1.2;
}
.transition-demo__actions {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr));
  gap: 0.9rem;
  min-width: 0;
}
.transition-demo__button {
  min-width: 0;
  min-height: 3rem;
  padding: 0.75rem 1rem;
  border: 1px solid transparent;
  border-radius: 999px;
  background: var(--color-primary);
  color: #ffffff;
  font: inherit;
  font-weight: 900;
  cursor: pointer;
  box-shadow: 0 10px 22px rgba(59, 130, 246, 0.2);
  transition:
    background-color 0.18s ease,
    box-shadow 0.18s ease,
    transform 0.18s ease;
}
.transition-demo__button:hover,
.transition-demo__button:focus-visible {
  background: var(--color-primary-dark);
  box-shadow: 0 16px 30px rgba(29, 78, 216, 0.25);
  transform: translateY(-0.18rem);
}
.transition-demo__button:active {
  transform: translateY(0) scale(0.98);
  box-shadow: none;
}
.transition-demo__button:focus-visible,
.transition-demo__link-card:focus-visible {
  outline: 3px solid #93c5fd;
  outline-offset: 3px;
}
.transition-demo__link-card {
  min-width: 0;
  display: grid;
  gap: 0.35rem;
  align-content: center;
  min-height: 8rem;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #ffffff;
  color: var(--color-text);
  text-decoration: none;
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.08);
  transition:
    border-color 0.18s ease,
    box-shadow 0.18s ease,
    transform 0.18s ease,
    background-color 0.18s ease;
}
.transition-demo__link-card:hover,
.transition-demo__link-card:focus-visible {
  border-color: #93c5fd;
  background: #eff6ff;
  box-shadow: 0 18px 34px rgba(15, 23, 42, 0.14);
  transform: translateY(-0.25rem);
}
.transition-demo__link-card span {
  color: var(--color-primary-dark);
  font-size: 0.82rem;
  font-weight: 900;
  text-transform: uppercase;
}
.transition-demo__link-card strong {
  line-height: 1.25;
}
.transition-demo__status-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 1rem;
}
.transition-demo__status {
  display: inline-flex;
  align-items: center;
  min-height: 2rem;
  padding: 0.35rem 0.65rem;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: #ffffff;
  color: var(--color-text-muted);
  font-size: 0.84rem;
  font-weight: 900;
  transition:
    background-color 0.18s ease,
    border-color 0.18s ease,
    color 0.18s ease,
    transform 0.18s ease;
}
.transition-demo__status:hover {
  transform: translateY(-0.12rem);
}
.transition-demo__status--quick:hover {
  border-color: #bfdbfe;
  background: #eff6ff;
  color: #1e3a8a;
}
.transition-demo__status--smooth:hover {
  border-color: #bbf7d0;
  background: #f0fdf4;
  color: #166534;
}
.transition-demo__status--slow:hover {
  border-color: #fde68a;
  background: #fffbeb;
  color: #92400e;
}
.transition-demo__timing-list {
  display: grid;
  gap: 0.75rem;
}
.transition-demo__timing {
  min-width: 0;
  display: grid;
  gap: 0.45rem;
  padding: 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #f8fafc;
}
.transition-demo__timing span {
  display: block;
  width: 38%;
  height: 0.8rem;
  border-radius: 999px;
  background: var(--color-primary);
  transition: width 0.28s ease;
}
.transition-demo__timing:hover span {
  width: 100%;
}
.transition-demo__timing--out span {
  transition-timing-function: ease-out;
  background: #22c55e;
}
.transition-demo__timing--linear span {
  transition-timing-function: linear;
  background: #f59e0b;
}
.transition-demo__timing p {
  margin: 0;
  color: var(--color-text-muted);
}
.transition-demo__timing strong {
  display: block;
  color: var(--color-text);
}
.transition-demo__panel > p {
  margin: 0.9rem 0 0;
  color: var(--color-text-muted);
}
.animation-demo {
  display: grid;
  gap: 1rem;
  margin: 1rem 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #f8faff;
}
.animation-demo__panel {
  min-width: 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}
.animation-demo__label {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  margin-bottom: 0.7rem;
  padding: 0.3rem 0.65rem;
  border-radius: 999px;
  background: #ede9fe;
  color: #5b21b6;
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
}
.animation-demo__panel h3 {
  margin: 0 0 0.8rem;
  color: var(--color-text);
  font-size: clamp(1.2rem, 1rem + 0.8vw, 1.65rem);
  line-height: 1.2;
}
.animation-demo__stage {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr));
  gap: 0.9rem;
  min-width: 0;
}
.animation-demo__card {
  min-width: 0;
  min-height: 11rem;
  display: grid;
  gap: 0.55rem;
  align-content: start;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #ffffff;
  color: var(--color-text);
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.08);
}
.animation-demo__card span {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  min-height: 1.8rem;
  padding: 0.25rem 0.55rem;
  border-radius: 999px;
  background: #eff6ff;
  color: #1e3a8a;
  font-size: 0.78rem;
  font-weight: 900;
}
.animation-demo__card strong {
  line-height: 1.25;
}
.animation-demo__card p {
  margin: 0;
  color: var(--color-text-muted);
}
.animation-demo__card--enter {
  animation: lesson26FadeEnter 1.8s ease-out infinite both;
}
.animation-demo__card--pulse {
  position: relative;
}
.animation-demo__card--pulse::after {
  content: "";
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 0.85rem;
  height: 0.85rem;
  border-radius: 999px;
  background: #22c55e;
  box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.36);
  animation: lesson26Pulse 1.2s ease-in-out infinite alternate;
}
.animation-demo__track {
  position: relative;
  min-height: 4rem;
  margin-top: 1rem;
  overflow: hidden;
  border: 1px dashed #bfdbfe;
  border-radius: var(--radius-md);
  background: linear-gradient(90deg, rgba(191, 219, 254, 0.4) 1px, transparent 1px), #f8fafc;
  background-size: 2rem 100%;
}
.animation-demo__runner {
  position: absolute;
  top: 50%;
  left: 0.75rem;
  display: block;
  width: 2.25rem;
  height: 2.25rem;
  border: 1px solid #bfdbfe;
  border-radius: 999px;
  background: linear-gradient(135deg, #3b82f6, #22c55e);
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.16);
  animation: lesson26Runner 2.4s ease-in-out infinite alternate;
}
.animation-demo__progress {
  overflow: hidden;
  height: 0.85rem;
  border-radius: 999px;
  background: #e2e8f0;
}
.animation-demo__progress span {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #3b82f6, #22c55e);
  transform-origin: left center;
  animation: lesson26Progress 2.8s ease-in-out forwards;
}
.animation-demo__facts {
  display: grid;
  gap: 0.55rem;
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}
.animation-demo__facts li {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.55rem 0.65rem;
  border: 1px solid var(--color-border);
  border-radius: 0.75rem;
  background: #f8fafc;
}
.animation-demo__facts strong {
  color: var(--color-text);
}
.animation-demo__facts span {
  color: var(--color-text-muted);
  text-align: right;
}
.animation-demo__panel > p {
  margin: 0.9rem 0 0;
  color: var(--color-text-muted);
}
.motion-demo {
  display: grid;
  gap: 1rem;
  margin: 1rem 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #f8faff;
}
.motion-demo__panel {
  min-width: 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}
.motion-demo__label {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  margin-bottom: 0.7rem;
  padding: 0.3rem 0.65rem;
  border-radius: 999px;
  background: #dcfce7;
  color: #166534;
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
}
.motion-demo__panel--full .motion-demo__label {
  background: #eff6ff;
  color: #1e3a8a;
}
.motion-demo__panel h3 {
  margin: 0 0 0.8rem;
  color: var(--color-text);
  font-size: clamp(1.2rem, 1rem + 0.8vw, 1.65rem);
  line-height: 1.2;
}
.motion-demo__surface {
  display: grid;
  gap: 1rem;
  min-width: 0;
  padding: 1rem;
  border: 1px dashed #bfdbfe;
  border-radius: var(--radius-md);
  background: #f8fafc;
}
.motion-demo__notice {
  min-width: 0;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.35rem 0.75rem;
  align-items: start;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #ffffff;
  color: var(--color-text);
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.08);
}
.motion-demo__notice strong,
.motion-demo__notice p {
  grid-column: 2;
}
.motion-demo__notice p {
  margin: 0;
  color: var(--color-text-muted);
}
.motion-demo__status-dot {
  grid-row: span 2;
  display: block;
  width: 0.9rem;
  height: 0.9rem;
  margin-top: 0.25rem;
  border-radius: 999px;
  background: #22c55e;
  box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.34);
  animation: lesson27Pulse 1.4s ease-in-out infinite alternate;
}
.motion-demo__status-dot--static {
  animation: none;
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.16);
}
.motion-demo__notice--animated {
  animation: lesson27NoticeEnter 1.8s ease-out infinite both;
}
.motion-demo__notice--static {
  border-color: #86efac;
  background: #f0fdf4;
  box-shadow: none;
}
.motion-demo__path {
  position: relative;
  min-height: 3rem;
  overflow: hidden;
  border: 1px solid #bfdbfe;
  border-radius: var(--radius-md);
  background: linear-gradient(90deg, rgba(191, 219, 254, 0.45) 1px, transparent 1px), #ffffff;
  background-size: 2rem 100%;
}
.motion-demo__path span {
  position: absolute;
  top: 50%;
  left: 0.75rem;
  width: 2rem;
  height: 2rem;
  border-radius: 0.75rem;
  background: linear-gradient(135deg, #3b82f6, #22c55e);
  transform: translateY(-50%);
  animation: lesson27Travel 2.2s ease-in-out infinite alternate;
}
.motion-demo__rules {
  display: grid;
  gap: 0.55rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.motion-demo__rules li {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.55rem 0.65rem;
  border: 1px solid var(--color-border);
  border-radius: 0.75rem;
  background: #ffffff;
}
.motion-demo__rules strong {
  color: var(--color-text);
}
.motion-demo__rules span {
  color: var(--color-text-muted);
  text-align: right;
}
.naming-demo {
  display: grid;
  gap: 1rem;
  margin: 1rem 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #f8faff;
}
.naming-demo__panel {
  min-width: 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}
.naming-demo__label {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  margin-bottom: 0.7rem;
  padding: 0.3rem 0.65rem;
  border-radius: 999px;
  background: #dcfce7;
  color: #166534;
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
}
.naming-demo__label--risk {
  background: #fee2e2;
  color: #991b1b;
}
.naming-demo__panel h3 {
  margin: 0 0 0.8rem;
  color: var(--color-text);
  font-size: clamp(1.2rem, 1rem + 0.8vw, 1.65rem);
  line-height: 1.2;
}
.naming-demo__sample {
  min-width: 0;
  display: grid;
  gap: 0.55rem;
  min-height: 10rem;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #ffffff;
  color: var(--color-text);
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.08);
}
.naming-demo__sample--messy {
  border-color: #fecaca;
  background: #fff7f7;
}
.naming-demo__sample--bem {
  border-color: #bbf7d0;
  background: #f0fdf4;
}
.naming-demo__pill {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  min-height: 1.8rem;
  padding: 0.25rem 0.55rem;
  border-radius: 999px;
  background: #ffffff;
  color: var(--color-text-muted);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.78rem;
  font-weight: 800;
  box-shadow: inset 0 0 0 1px var(--color-border);
}
.naming-demo__sample strong {
  line-height: 1.25;
}
.naming-demo__sample p {
  margin: 0;
  color: var(--color-text-muted);
}
.naming-demo__code-list {
  display: grid;
  gap: 0.55rem;
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}
.naming-demo__code-list li {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.55rem 0.65rem;
  border: 1px solid var(--color-border);
  border-radius: 0.75rem;
  background: #f8fafc;
}
.naming-demo__code-list code {
  color: var(--color-text);
  font-weight: 800;
}
.naming-demo__code-list span {
  color: var(--color-text-muted);
  text-align: right;
}
.token-demo {
  display: grid;
  gap: 1rem;
  margin: 1rem 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #f8faff;
}
.token-demo__panel {
  min-width: 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}
.token-demo__label {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  margin-bottom: 0.7rem;
  padding: 0.3rem 0.65rem;
  border-radius: 999px;
  background: #eff6ff;
  color: #1e3a8a;
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
}
.token-demo__label--success {
  background: #dcfce7;
  color: #166534;
}
.token-demo__card {
  --status-bg: #eff6ff;
  --status-border: #bfdbfe;
  --status-accent: #2563eb;
  --status-space: 1rem;
  --status-radius: 0.9rem;
  --status-shadow: 0 10px 24px rgba(15, 23, 42, 0.08);
  min-width: 0;
  display: grid;
  gap: 0.75rem;
  min-height: 16rem;
  padding: var(--status-space);
  border: 1px solid var(--status-border);
  border-radius: var(--status-radius);
  background: var(--status-bg);
  color: var(--color-text);
  box-shadow: var(--status-shadow);
}
.token-demo__card--success {
  --status-bg: #f0fdf4;
  --status-border: #86efac;
  --status-accent: #16a34a;
}
.token-demo__card h3 {
  margin: 0;
  color: var(--status-accent);
  font-size: clamp(1.2rem, 1rem + 0.7vw, 1.55rem);
  line-height: 1.2;
}
.token-demo__card p {
  margin: 0;
  color: var(--color-text-muted);
}
.token-demo__tokens {
  display: grid;
  gap: 0.55rem;
  margin: 0.25rem 0 0;
  padding: 0;
  list-style: none;
}
.token-demo__tokens li {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.55rem 0.65rem;
  border: 1px solid rgba(15, 23, 42, 0.08);
  border-radius: 0.75rem;
  background: rgba(255, 255, 255, 0.78);
}
.token-demo__tokens code {
  color: var(--color-text);
  font-weight: 800;
}
.token-demo__tokens span {
  color: var(--status-accent);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.82rem;
  text-align: right;
}
.cascade-demo {
  display: grid;
  gap: 1rem;
  margin: 1rem 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #f8faff;
}
.cascade-demo__panel {
  min-width: 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}
.cascade-demo__label {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  margin-bottom: 0.7rem;
  padding: 0.3rem 0.65rem;
  border-radius: 999px;
  background: #dcfce7;
  color: #166534;
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
}
.cascade-demo__label--risk {
  background: #fee2e2;
  color: #991b1b;
}
.cascade-demo__panel h3 {
  margin: 0 0 0.8rem;
  color: var(--color-text);
  font-size: clamp(1.2rem, 1rem + 0.8vw, 1.65rem);
  line-height: 1.2;
}
.cascade-demo__card {
  min-width: 0;
  display: grid;
  gap: 0.55rem;
  min-height: 9rem;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #ffffff;
  color: var(--color-text);
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.08);
}
.cascade-demo__card--fight {
  border-color: #fecaca;
  background: #fff7f7;
}
.cascade-demo__card--layered {
  border-color: #bbf7d0;
  background: #f0fdf4;
}
.cascade-demo__card strong {
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.95rem;
  line-height: 1.35;
}
.cascade-demo__card p {
  margin: 0;
  color: var(--color-text-muted);
}
.cascade-demo__stack {
  display: grid;
  gap: 0.55rem;
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
  counter-reset: cascade-step;
}
.cascade-demo__stack li {
  counter-increment: cascade-step;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.45rem 0.7rem;
  align-items: center;
  padding: 0.65rem;
  border: 1px solid var(--color-border);
  border-radius: 0.75rem;
  background: #f8fafc;
}
.cascade-demo__stack li::before {
  content: counter(cascade-step);
  grid-row: span 2;
  display: grid;
  place-items: center;
  width: 1.8rem;
  height: 1.8rem;
  border-radius: 999px;
  background: #e2e8f0;
  color: var(--color-text);
  font-size: 0.82rem;
  font-weight: 900;
}
.cascade-demo__stack--layers li::before {
  background: #dcfce7;
  color: #166534;
}
.cascade-demo__stack span {
  color: var(--color-text-muted);
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
}
.cascade-demo__stack code {
  min-width: 0;
  color: var(--color-text);
  overflow-wrap: anywhere;
}
.base-demo {
  display: grid;
  gap: 1rem;
  margin: 1rem 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #f8fafc;
}
.base-demo__panel {
  min-width: 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}
.base-demo__label {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  margin-bottom: 0.7rem;
  padding: 0.3rem 0.65rem;
  border-radius: 999px;
  background: #dbeafe;
  color: #1e40af;
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
}
.base-demo__label--warning {
  background: #ffedd5;
  color: #9a3412;
}
.base-demo__panel h3 {
  margin: 0 0 0.8rem;
  color: var(--color-text);
  font-size: clamp(1.2rem, 1rem + 0.8vw, 1.65rem);
  line-height: 1.2;
}
.base-demo__mock {
  min-width: 0;
  display: grid;
  gap: 0.8rem;
  min-height: 17rem;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #ffffff;
  color: var(--color-text);
  overflow: hidden;
}
.base-demo__mock h4 {
  color: var(--color-text);
  font-size: 1.15rem;
  line-height: 1.25;
}
.base-demo__mock p {
  color: var(--color-text-muted);
}
.base-demo__mock button {
  width: fit-content;
  border: 0;
  border-radius: 0.7rem;
  font: inherit;
  font-weight: 800;
}
.base-demo__mock--raw {
  border-color: #fed7aa;
  background: #fff7ed;
}
.base-demo__mock--raw h4 {
  margin: 0.8rem 0 0.25rem;
}
.base-demo__mock--raw p {
  margin: 0.85rem 0;
}
.base-demo__mock--raw button {
  padding: 0.45rem 0.8rem;
  background: #e2e8f0;
  color: #334155;
}
.base-demo__mock--stable {
  border-color: #bfdbfe;
  background: #eff6ff;
}
.base-demo__mock--stable h4,
.base-demo__mock--stable p {
  margin: 0;
}
.base-demo__mock--stable button {
  padding: 0.65rem 0.95rem;
  background: #2563eb;
  color: #ffffff;
  box-shadow: 0 10px 18px rgba(37, 99, 235, 0.18);
}
.base-demo__overflow,
.base-demo__media {
  display: grid;
  place-items: center;
  min-height: 4.5rem;
  border: 1px dashed currentColor;
  border-radius: 0.85rem;
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.82rem;
  font-weight: 800;
}
.base-demo__overflow {
  width: 132%;
  color: #b45309;
  background: #ffedd5;
}
.base-demo__media {
  width: 100%;
  color: #1d4ed8;
  background: #dbeafe;
}
.structure-demo {
  display: grid;
  gap: 1rem;
  margin: 1rem 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #f8faff;
}
.structure-demo__panel {
  min-width: 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}
.structure-demo__label {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  margin-bottom: 0.7rem;
  padding: 0.3rem 0.65rem;
  border-radius: 999px;
  background: #dcfce7;
  color: #166534;
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
}
.structure-demo__label--risk {
  background: #fee2e2;
  color: #991b1b;
}
.structure-demo__panel h3 {
  margin: 0 0 0.8rem;
  color: var(--color-text);
  font-size: clamp(1.2rem, 1rem + 0.8vw, 1.65rem);
  line-height: 1.2;
}
.structure-demo__list {
  display: grid;
  gap: 0.65rem;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: structure-step;
}
.structure-demo__list li {
  counter-increment: structure-step;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.4rem 0.7rem;
  align-items: center;
  padding: 0.7rem;
  border: 1px solid var(--color-border);
  border-radius: 0.8rem;
  background: #f8fafc;
}
.structure-demo__list li::before {
  content: counter(structure-step);
  grid-row: span 2;
  display: grid;
  place-items: center;
  width: 1.9rem;
  height: 1.9rem;
  border-radius: 999px;
  background: #e2e8f0;
  color: var(--color-text);
  font-size: 0.82rem;
  font-weight: 900;
}
.structure-demo__list--chaos li {
  border-color: #fecaca;
  background: #fff7f7;
}
.structure-demo__list--chaos li::before {
  background: #fee2e2;
  color: #991b1b;
}
.structure-demo__list--system li {
  border-color: #bbf7d0;
  background: #f0fdf4;
}
.structure-demo__list--system li::before {
  background: #dcfce7;
  color: #166534;
}
.structure-demo__list code {
  min-width: 0;
  color: var(--color-text);
  font-weight: 800;
  overflow-wrap: anywhere;
}
.structure-demo__list span {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}
.pseudo-demo {
  display: grid;
  gap: 1rem;
  margin: 1rem 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #f8fafc;
}
.pseudo-demo__panel {
  min-width: 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}
.pseudo-demo__badge,
.pseudo-demo__label {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  width: fit-content;
  margin-bottom: 0.8rem;
  padding: 0.32rem 0.68rem;
  border-radius: 999px;
  background: #dcfce7;
  color: #166534;
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
}
.pseudo-demo__badge::before {
  content: "";
  width: 0.52rem;
  height: 0.52rem;
  border-radius: 999px;
  background: #22c55e;
  box-shadow: 0 0 0 0.22rem rgba(34, 197, 94, 0.18);
}
.pseudo-demo__label {
  background: #dbeafe;
  color: #1e40af;
}
.pseudo-demo__panel h3 {
  margin: 0 0 0.75rem;
  color: var(--color-text);
  font-size: clamp(1.2rem, 1rem + 0.8vw, 1.65rem);
  line-height: 1.2;
}
.pseudo-demo__task {
  min-width: 0;
  display: grid;
  gap: 0.75rem;
  min-height: 15rem;
  padding: 1rem;
  border: 1px solid #bfdbfe;
  border-radius: var(--radius-md);
  background: #eff6ff;
  color: var(--color-text);
}
.pseudo-demo__task :is(h3, p) {
  margin: 0;
}
.pseudo-demo__task p {
  color: var(--color-text-muted);
}
.pseudo-demo__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  align-items: center;
  margin-top: auto;
}
.pseudo-demo__button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.65rem;
  padding: 0.7rem 0.95rem;
  border: 1px solid #2563eb;
  border-radius: 0.75rem;
  background: #2563eb;
  color: #ffffff;
  font: inherit;
  font-weight: 800;
  text-decoration: none;
  transition:
    background 0.18s ease,
    border-color 0.18s ease,
    color 0.18s ease,
    transform 0.18s ease;
}
.pseudo-demo__button:hover {
  border-color: #1d4ed8;
  background: #1d4ed8;
  transform: translateY(-1px);
}
.pseudo-demo__button:focus-visible {
  outline: 3px solid #93c5fd;
  outline-offset: 3px;
}
.pseudo-demo__button:disabled,
.pseudo-demo__button--muted:disabled {
  border-color: #cbd5e1;
  background: #e2e8f0;
  color: #64748b;
  cursor: not-allowed;
  transform: none;
}
.pseudo-demo__steps {
  display: grid;
  gap: 0;
  margin: 0;
  padding-left: 1.4rem;
}
.pseudo-demo__steps li {
  padding: 0.75rem 0;
  color: var(--color-text);
}
.pseudo-demo__steps li:not(:last-child) {
  border-bottom: 1px solid var(--color-border);
}
.pseudo-demo__steps li::marker {
  color: #2563eb;
  font-weight: 900;
}
.pseudo-demo__steps strong {
  display: block;
  margin-bottom: 0.15rem;
  color: var(--color-text);
}
.pseudo-demo__steps span {
  color: var(--color-text-muted);
}
.container-query-demo {
  display: grid;
  gap: 1rem;
  margin: 1rem 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #f8faff;
}
.container-query-demo__frame {
  container-type: inline-size;
  min-width: 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}
.container-query-demo__frame--narrow {
  max-width: 18rem;
}
.container-query-demo__frame--wide {
  width: 100%;
}
.container-query-demo__label {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  margin-bottom: 0.8rem;
  padding: 0.32rem 0.68rem;
  border-radius: 999px;
  background: #eff6ff;
  color: #1e40af;
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
}
.container-query-demo__label--wide {
  background: #dcfce7;
  color: #166534;
}
.container-query-demo__card {
  min-width: 0;
  display: grid;
  gap: 1rem;
  padding: 1rem;
  border: 1px solid #bfdbfe;
  border-radius: var(--radius-md);
  background: #eff6ff;
  color: var(--color-text);
}
.container-query-demo__media {
  min-height: 7rem;
  border-radius: 0.9rem;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.88), rgba(34, 197, 94, 0.76)), #2563eb;
}
.container-query-demo__content {
  display: grid;
  gap: 0.65rem;
  align-content: center;
}
.container-query-demo__content h3 {
  margin: 0;
  color: var(--color-text);
  font-size: clamp(1.15rem, 7cqi, 1.65rem);
  line-height: 1.2;
}
.container-query-demo__content p {
  margin: 0;
  color: var(--color-text-muted);
}
.container-query-demo__content a {
  display: inline-flex;
  width: fit-content;
  padding: 0.58rem 0.82rem;
  border-radius: 0.7rem;
  background: #2563eb;
  color: #ffffff;
  font-weight: 800;
  text-decoration: none;
}
@container (min-width: 30rem) {
  .container-query-demo__card {
    grid-template-columns: minmax(8rem, 0.42fr) minmax(0, 1fr);
    align-items: center;
  }

  .container-query-demo__media {
    min-height: 10rem;
  }
}
.logical-demo {
  display: grid;
  gap: 1rem;
  margin: 1rem 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #f8faff;
}
.logical-demo__card {
  position: relative;
  min-block-size: 13rem;
  padding-block: 3.2rem 1.25rem;
  padding-inline: 1.25rem;
  border: 1px solid #bfdbfe;
  border-inline-start: 0.35rem solid #2563eb;
  border-radius: var(--radius-md);
  background: #eff6ff;
  box-shadow: var(--shadow-soft);
  color: var(--color-text);
  text-align: start;
}
.logical-demo__card[dir="rtl"] {
  border-color: #fed7aa;
  border-inline-start-color: #f97316;
  background: #fff7ed;
}
.logical-demo__badge {
  position: absolute;
  inset-block-start: 0.85rem;
  inset-inline-end: 0.85rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-inline-size: 3rem;
  padding-block: 0.3rem;
  padding-inline: 0.62rem;
  border-radius: 999px;
  background: #ffffff;
  color: #1e40af;
  font-size: 0.78rem;
  font-weight: 800;
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.08);
}
.logical-demo__card[dir="rtl"] .logical-demo__badge {
  color: #c2410c;
}
.logical-demo__card h3 {
  margin-block: 0 0.6rem;
  margin-inline: 0;
  color: var(--color-text);
  font-size: clamp(1.18rem, 1rem + 1vw, 1.55rem);
  line-height: 1.2;
}
.logical-demo__card p {
  max-inline-size: 42ch;
  margin-block: 0 1rem;
  margin-inline: 0;
  color: var(--color-text-muted);
}
.logical-demo__card a {
  display: inline-flex;
  align-items: center;
  inline-size: fit-content;
  padding-block: 0.58rem;
  padding-inline: 0.82rem;
  border-radius: 0.7rem;
  background: #2563eb;
  color: #ffffff;
  font-weight: 800;
  text-decoration: none;
}
.logical-demo__card[dir="rtl"] a {
  background: #ea580c;
}
.nesting-demo {
  display: grid;
  gap: 1rem;
  margin: 1rem 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #f8faff;
}
.nesting-demo__panel {
  min-width: 0;
  display: grid;
  gap: 0.85rem;
  align-content: start;
  padding: 1rem;
  border: 1px solid #bfdbfe;
  border-radius: var(--radius-md);
  background: #eff6ff;
  box-shadow: var(--shadow-soft);
  color: var(--color-text);
}
.nesting-demo__panel--nested {
  border-color: #bbf7d0;
  background: #f0fdf4;
}
.nesting-demo__badge {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  padding: 0.32rem 0.68rem;
  border-radius: 999px;
  background: #ffffff;
  color: #1e40af;
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.08);
}
.nesting-demo__panel--nested .nesting-demo__badge {
  color: #166534;
}
.nesting-demo__panel h3 {
  margin: 0;
  color: var(--color-text);
  font-size: clamp(1.15rem, 1rem + 1vw, 1.55rem);
  line-height: 1.2;
}
.nesting-demo__panel p {
  margin: 0;
  color: var(--color-text-muted);
}
.nesting-demo__panel ul {
  display: grid;
  gap: 0.55rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.nesting-demo__panel li {
  min-width: 0;
  padding: 0.6rem 0.7rem;
  border: 1px solid rgba(37, 99, 235, 0.16);
  border-radius: 0.7rem;
  background: rgba(255, 255, 255, 0.72);
}
.nesting-demo__panel--nested li {
  border-color: rgba(22, 101, 52, 0.18);
}
.nesting-demo__panel code {
  white-space: normal;
  overflow-wrap: anywhere;
}
.theme-demo {
  display: grid;
  gap: 1rem;
  margin: 1rem 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #f8faff;
}
.theme-demo__panel {
  --theme-bg: #ffffff;
  --theme-text: #0f172a;
  --theme-muted: #64748b;
  --theme-border: #dbe3ef;
  --theme-accent: #2563eb;
  --theme-accent-strong: #1d4ed8;
  --theme-metric-bg: #eff6ff;

  min-width: 0;
  display: grid;
  gap: 0.9rem;
  align-content: start;
  padding: 1rem;
  border: 1px solid var(--theme-border);
  border-radius: var(--radius-md);
  background: var(--theme-bg);
  color: var(--theme-text);
  box-shadow: var(--shadow-soft);
}
.theme-demo__panel--dark {
  --theme-bg: #111827;
  --theme-text: #f8fafc;
  --theme-muted: #a8b3c7;
  --theme-border: #334155;
  --theme-accent: #67e8f9;
  --theme-accent-strong: #fbbf24;
  --theme-metric-bg: #172033;
  color-scheme: dark;
}
.theme-demo__badge {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  padding: 0.32rem 0.68rem;
  border-radius: 999px;
  background: var(--theme-metric-bg);
  color: var(--theme-accent-strong);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}
.theme-demo__panel h3 {
  margin: 0;
  color: var(--theme-text);
  font-size: clamp(1.15rem, 1rem + 1vw, 1.55rem);
  line-height: 1.2;
}
.theme-demo__panel p {
  margin: 0;
  color: var(--theme-muted);
}
.theme-demo__metric {
  display: grid;
  gap: 0.1rem;
  padding: 0.85rem;
  border: 1px solid var(--theme-border);
  border-radius: 0.8rem;
  background: var(--theme-metric-bg);
}
.theme-demo__metric strong {
  color: var(--theme-text);
  font-size: 1.6rem;
  line-height: 1;
}
.theme-demo__metric span {
  color: var(--theme-muted);
  font-size: 0.92rem;
}
.theme-demo__panel a {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: 0.58rem 0.82rem;
  border-radius: 0.7rem;
  background: var(--theme-accent);
  color: #ffffff;
  font-weight: 800;
  text-decoration: none;
}
.theme-demo__panel--dark a {
  color: #0f172a;
}
.profile-project-demo {
  display: grid;
  margin: 1rem 0;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #f8faff;
}
.profile-project-demo__card {
  --profile-bg: #ffffff;
  --profile-text: #0f172a;
  --profile-muted: #64748b;
  --profile-border: #dbe3ef;
  --profile-accent: #2563eb;
  --profile-accent-strong: #1d4ed8;
  --profile-success: #16a34a;
  --profile-warm: #f59e0b;

  min-width: 0;
  display: grid;
  gap: 1rem;
  padding: clamp(1rem, 4vw, 1.5rem);
  border: 1px solid var(--profile-border);
  border-radius: var(--radius-md);
  background: var(--profile-bg);
  color: var(--profile-text);
  box-shadow: var(--shadow-soft);
}
.profile-project-demo__avatar {
  display: grid;
  place-items: center;
  inline-size: clamp(5rem, 22vw, 7rem);
  aspect-ratio: 1;
  border-radius: 1.25rem;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.92), rgba(22, 163, 74, 0.82)), var(--profile-accent);
  color: #ffffff;
  font-size: clamp(1.6rem, 7vw, 2.2rem);
  font-weight: 900;
  letter-spacing: 0;
  box-shadow: 0 18px 40px rgba(37, 99, 235, 0.18);
}
.profile-project-demo__content {
  min-width: 0;
  display: grid;
  gap: 0.9rem;
}
.profile-project-demo__eyebrow {
  margin: 0;
  color: var(--profile-accent-strong);
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.profile-project-demo__content h3 {
  margin: 0;
  color: var(--profile-text);
  font-size: clamp(1.45rem, 1.1rem + 2vw, 2rem);
  line-height: 1.1;
}
.profile-project-demo__content p {
  max-width: 58ch;
  margin: 0;
  color: var(--profile-muted);
}
.profile-project-demo__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.profile-project-demo__tags li {
  padding: 0.38rem 0.62rem;
  border: 1px solid rgba(37, 99, 235, 0.16);
  border-radius: 999px;
  background: #eff6ff;
  color: #1e40af;
  font-size: 0.82rem;
  font-weight: 800;
}
.profile-project-demo__tags li:nth-child(2) {
  border-color: rgba(22, 163, 74, 0.18);
  background: #f0fdf4;
  color: #166534;
}
.profile-project-demo__tags li:nth-child(3) {
  border-color: rgba(245, 158, 11, 0.24);
  background: #fffbeb;
  color: #92400e;
}
.profile-project-demo__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.65rem;
  margin: 0;
}
.profile-project-demo__stats div {
  min-width: 0;
  padding: 0.75rem;
  border: 1px solid var(--profile-border);
  border-radius: 0.8rem;
  background: #f8fafc;
}
.profile-project-demo__stats dt {
  color: var(--profile-muted);
  font-size: 0.78rem;
  font-weight: 700;
}
.profile-project-demo__stats dd {
  margin: 0.1rem 0 0;
  color: var(--profile-text);
  font-size: 1.35rem;
  font-weight: 900;
  line-height: 1;
}
.profile-project-demo__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.profile-project-demo__button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0.68rem 0.95rem;
  border-radius: 0.75rem;
  font-weight: 850;
  text-decoration: none;
  transition:
    transform 0.18s ease,
    box-shadow 0.18s ease,
    border-color 0.18s ease,
    background-color 0.18s ease;
}
.profile-project-demo__button:hover {
  transform: translateY(-1px);
}
.profile-project-demo__button:active {
  transform: translateY(0);
}
.profile-project-demo__button:focus-visible {
  outline: 3px solid #93c5fd;
  outline-offset: 3px;
}
.profile-project-demo__button--primary {
  border: 1px solid var(--profile-accent);
  background: var(--profile-accent);
  color: #ffffff;
  box-shadow: 0 12px 24px rgba(37, 99, 235, 0.18);
}
.profile-project-demo__button--secondary {
  border: 1px solid var(--profile-border);
  background: #ffffff;
  color: var(--profile-accent-strong);
}
.landing-project-demo {
  --landing-bg: #f8fafc;
  --landing-panel: #ffffff;
  --landing-panel-strong: #111827;
  --landing-text: #0f172a;
  --landing-muted: #526173;
  --landing-border: #d7e0ea;
  --landing-accent: #2563eb;
  --landing-accent-strong: #1d4ed8;
  --landing-success: #16a34a;
  --landing-warm: #f59e0b;
  --landing-focus: #93c5fd;

  margin: 1rem 0;
  padding: clamp(1rem, 4vw, 1.5rem);
  border: 1px solid var(--landing-border);
  border-radius: var(--radius-lg);
  background: var(--landing-bg);
  color: var(--landing-text);
}
.landing-project-demo__hero {
  display: grid;
  gap: 1.25rem;
}
.landing-project-demo__copy {
  display: grid;
  align-content: center;
  gap: 1rem;
  min-width: 0;
}
.landing-project-demo__eyebrow {
  width: fit-content;
  margin: 0;
  padding: 0.3rem 0.65rem;
  border: 1px solid #bbf7d0;
  border-radius: 999px;
  background: #dcfce7;
  color: #166534;
  font-size: 0.76rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.landing-project-demo__copy h3 {
  max-width: 13ch;
  margin: 0;
  font-size: 2rem;
  line-height: 1.08;
}
.landing-project-demo__copy p:not(.landing-project-demo__eyebrow) {
  max-width: 58ch;
  margin: 0;
  color: var(--landing-muted);
}
.landing-project-demo__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.landing-project-demo__button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0.7rem 1rem;
  border-radius: 999px;
  font-weight: 800;
  text-decoration: none;
  transition:
    transform 0.18s ease,
    box-shadow 0.18s ease,
    border-color 0.18s ease,
    background-color 0.18s ease;
}
.landing-project-demo__button:hover {
  transform: translateY(-1px);
}
.landing-project-demo__button:active {
  transform: translateY(0);
}
.landing-project-demo__button:focus-visible {
  outline: 3px solid var(--landing-focus);
  outline-offset: 3px;
}
.landing-project-demo__button--primary {
  border: 1px solid var(--landing-accent);
  background: var(--landing-accent);
  color: #ffffff;
  box-shadow: 0 12px 24px rgba(37, 99, 235, 0.18);
}
.landing-project-demo__button--primary:hover {
  background: var(--landing-accent-strong);
}
.landing-project-demo__button--secondary {
  border: 1px solid var(--landing-border);
  background: #ffffff;
  color: var(--landing-text);
}
.landing-project-demo__visual {
  display: grid;
  gap: 1rem;
  min-width: 0;
  padding: 1rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  background: var(--landing-panel-strong);
  color: #e5edf7;
  box-shadow: 0 18px 34px rgba(17, 24, 39, 0.16);
}
.landing-project-demo__visual-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.landing-project-demo__visual-header span {
  color: #cbd5e1;
}
.landing-project-demo__visual-header strong {
  padding: 0.25rem 0.55rem;
  border-radius: 999px;
  background: #fef3c7;
  color: #92400e;
}
.landing-project-demo__progress {
  height: 0.55rem;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
}
.landing-project-demo__progress span {
  display: block;
  width: 72%;
  height: 100%;
  border-radius: inherit;
  background: #22c55e;
}
.landing-project-demo__steps {
  display: grid;
  gap: 0.7rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.landing-project-demo__steps li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
  padding: 0.75rem;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.06);
}
.landing-project-demo__steps span {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: 8px;
  background: #dbeafe;
  color: #1e3a8a;
  font-weight: 800;
}
.landing-project-demo__cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 14rem), 1fr));
  gap: 1rem;
  margin-top: 1.25rem;
}
.landing-project-demo__card {
  display: grid;
  gap: 0.65rem;
  min-width: 0;
  padding: 1rem;
  border: 1px solid var(--landing-border);
  border-radius: var(--radius-md);
  background: var(--landing-panel);
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.06);
}
.landing-project-demo__card p {
  width: fit-content;
  margin: 0;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  background: #e0f2fe;
  color: #075985;
  font-size: 0.78rem;
  font-weight: 800;
}
.landing-project-demo__card:nth-child(2) p {
  background: #dcfce7;
  color: #166534;
}
.landing-project-demo__card:nth-child(3) p {
  background: #fef3c7;
  color: #92400e;
}
.landing-project-demo__card h4 {
  margin: 0;
  font-size: 1.02rem;
  line-height: 1.25;
}
.landing-project-demo__card span {
  color: var(--landing-muted);
}
.dashboard-project-demo {
  --dashboard-bg: #f8fafc;
  --dashboard-panel: #ffffff;
  --dashboard-panel-muted: #f1f5f9;
  --dashboard-text: #0f172a;
  --dashboard-muted: #64748b;
  --dashboard-border: #dbe3ef;
  --dashboard-accent: #2563eb;
  --dashboard-success: #16a34a;
  --dashboard-warning: #d97706;
  --dashboard-focus: #93c5fd;

  margin: 1rem 0;
  padding: clamp(1rem, 4vw, 1.5rem);
  border: 1px solid var(--dashboard-border);
  border-radius: var(--radius-lg);
  background: var(--dashboard-bg);
  color: var(--dashboard-text);
}
.dashboard-project-demo__header {
  display: grid;
  gap: 1rem;
  margin-bottom: 1rem;
}
.dashboard-project-demo__eyebrow {
  margin: 0 0 0.35rem;
  color: var(--dashboard-accent);
  font-size: 0.76rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.dashboard-project-demo__header h3 {
  margin: 0;
  font-size: 1.55rem;
  line-height: 1.18;
}
.dashboard-project-demo__header p:not(.dashboard-project-demo__eyebrow) {
  max-width: 58ch;
  margin: 0.35rem 0 0;
  color: var(--dashboard-muted);
}
.dashboard-project-demo__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  align-items: center;
}
.dashboard-project-demo__filter,
.dashboard-project-demo__button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.5rem;
  padding: 0.6rem 0.85rem;
  border-radius: 999px;
  font-weight: 800;
  text-decoration: none;
  transition:
    transform 0.18s ease,
    background-color 0.18s ease,
    border-color 0.18s ease,
    box-shadow 0.18s ease;
}
.dashboard-project-demo__filter {
  border: 1px solid var(--dashboard-border);
  background: #ffffff;
  color: var(--dashboard-muted);
}
.dashboard-project-demo__filter[aria-current="page"] {
  border-color: #bfdbfe;
  background: #dbeafe;
  color: #1d4ed8;
}
.dashboard-project-demo__button {
  border: 1px solid var(--dashboard-accent);
  background: var(--dashboard-accent);
  color: #ffffff;
  box-shadow: 0 12px 24px rgba(37, 99, 235, 0.16);
}
.dashboard-project-demo__filter:hover,
.dashboard-project-demo__button:hover {
  transform: translateY(-1px);
}
.dashboard-project-demo__filter:active,
.dashboard-project-demo__button:active {
  transform: translateY(0);
}
.dashboard-project-demo__filter:focus-visible,
.dashboard-project-demo__button:focus-visible {
  outline: 3px solid var(--dashboard-focus);
  outline-offset: 3px;
}
.dashboard-project-demo__metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 12rem), 1fr));
  gap: 0.85rem;
  margin: 0 0 1rem;
}
.dashboard-project-demo__metric {
  display: grid;
  gap: 0.35rem;
  min-width: 0;
  padding: 1rem;
  border: 1px solid var(--dashboard-border);
  border-radius: var(--radius-md);
  background: var(--dashboard-panel);
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.05);
}
.dashboard-project-demo__metric dt {
  color: var(--dashboard-muted);
  font-size: 0.86rem;
  font-weight: 800;
}
.dashboard-project-demo__metric dd {
  margin: 0;
  color: var(--dashboard-text);
  font-size: 1.85rem;
  font-weight: 850;
  line-height: 1.05;
}
.dashboard-project-demo__metric span {
  color: #166534;
  font-size: 0.86rem;
  font-weight: 700;
}
.dashboard-project-demo__metric:nth-child(2) span {
  color: #075985;
}
.dashboard-project-demo__metric:nth-child(3) span {
  color: #92400e;
}
.dashboard-project-demo__grid {
  display: grid;
  gap: 1rem;
}
.dashboard-project-demo__panel {
  min-width: 0;
  padding: 1rem;
  border: 1px solid var(--dashboard-border);
  border-radius: var(--radius-md);
  background: var(--dashboard-panel);
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.05);
}
.dashboard-project-demo__panel-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}
.dashboard-project-demo__panel-header p {
  margin: 0 0 0.2rem;
  color: var(--dashboard-muted);
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.dashboard-project-demo__panel-header h4 {
  margin: 0;
  font-size: 1.03rem;
  line-height: 1.25;
}
.dashboard-project-demo__panel-header > span {
  flex: 0 0 auto;
  padding: 0.25rem 0.55rem;
  border-radius: 999px;
  background: #dcfce7;
  color: #166534;
  font-weight: 800;
}
.dashboard-project-demo__chart {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  align-items: end;
  gap: 0.55rem;
  min-height: 10rem;
  padding: 0.85rem;
  border-radius: var(--radius-md);
  background: linear-gradient(180deg, #f8fafc, #eef2ff);
}
.dashboard-project-demo__chart span {
  min-height: 1.75rem;
  height: var(--bar-size);
  border-radius: 7px 7px 3px 3px;
  background: linear-gradient(180deg, #2563eb, #22c55e);
}
.dashboard-project-demo__legend,
.dashboard-project-demo__tasks {
  display: grid;
  gap: 0.65rem;
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}
.dashboard-project-demo__legend {
  grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr));
}
.dashboard-project-demo__legend li {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--dashboard-muted);
  font-size: 0.9rem;
}
.dashboard-project-demo__legend span {
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 999px;
  background: var(--dashboard-accent);
}
.dashboard-project-demo__legend li:nth-child(2) span {
  background: var(--dashboard-success);
}
.dashboard-project-demo__tasks {
  margin-top: 0;
}
.dashboard-project-demo__tasks li {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.75rem;
  align-items: center;
  padding: 0.75rem;
  border: 1px solid var(--dashboard-border);
  border-radius: 10px;
  background: var(--dashboard-panel-muted);
}
.dashboard-project-demo__tasks strong {
  min-width: 0;
  line-height: 1.3;
}
.dashboard-project-demo__tag {
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  background: #fef3c7;
  color: #92400e;
  font-size: 0.75rem;
  font-weight: 850;
}
.dashboard-project-demo__tag--calm {
  background: #dcfce7;
  color: #166534;
}
.dashboard-project-demo__tag--neutral {
  background: #e2e8f0;
  color: #334155;
}
.dashboard-project-demo__activity {
  display: grid;
  gap: 0.75rem;
}
.dashboard-project-demo__activity div {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.2rem 0.75rem;
  padding-block: 0.65rem;
  border-top: 1px solid var(--dashboard-border);
}
.dashboard-project-demo__activity div:first-child {
  border-top: 0;
  padding-top: 0;
}
.dashboard-project-demo__activity span {
  grid-row: span 2;
  color: var(--dashboard-muted);
  font-size: 0.82rem;
  font-weight: 800;
}
.dashboard-project-demo__activity strong {
  min-width: 0;
  line-height: 1.25;
}
.dashboard-project-demo__activity em {
  color: var(--dashboard-muted);
  font-style: normal;
  font-size: 0.88rem;
}
.registration-project-demo {
  --form-bg: #f8fafc;
  --form-panel: #ffffff;
  --form-panel-muted: #eef4fb;
  --form-text: #0f172a;
  --form-muted: #64748b;
  --form-border: #dbe3ef;
  --form-focus: #2563eb;
  --form-focus-ring: #bfdbfe;
  --form-error: #dc2626;
  --form-error-bg: #fef2f2;
  --form-success: #16a34a;
  --form-success-bg: #f0fdf4;

  margin: 1rem 0;
  padding: clamp(1rem, 4vw, 1.5rem);
  border: 1px solid var(--form-border);
  border-radius: var(--radius-lg);
  background: var(--form-bg);
  color: var(--form-text);
}
.registration-project-demo__intro {
  display: grid;
  gap: 0.45rem;
  margin-bottom: 1rem;
}
.registration-project-demo__eyebrow {
  width: fit-content;
  margin: 0;
  padding: 0.3rem 0.65rem;
  border: 1px solid #bbf7d0;
  border-radius: 999px;
  background: #dcfce7;
  color: #166534;
  font-size: 0.76rem;
  font-weight: 850;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.registration-project-demo__intro h3 {
  margin: 0;
  font-size: 1.65rem;
  line-height: 1.16;
}
.registration-project-demo__intro p:not(.registration-project-demo__eyebrow) {
  max-width: 60ch;
  margin: 0;
  color: var(--form-muted);
}
.registration-project-demo__form {
  display: grid;
  gap: 1rem;
  padding: 1rem;
  border: 1px solid var(--form-border);
  border-radius: var(--radius-md);
  background: var(--form-panel);
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.06);
}
.registration-project-demo__grid {
  display: grid;
  gap: 1rem;
}
.registration-project-demo__field {
  display: grid;
  gap: 0.4rem;
  min-width: 0;
}
.registration-project-demo__field label,
.registration-project-demo__fieldset legend {
  color: var(--form-text);
  font-weight: 850;
}
.registration-project-demo__field label span {
  color: var(--form-muted);
  font-size: 0.78rem;
  font-weight: 750;
}
.registration-project-demo__field input,
.registration-project-demo__field select {
  width: 100%;
  min-height: 2.85rem;
  padding: 0.7rem 0.8rem;
  border: 1px solid var(--form-border);
  border-radius: 12px;
  background: #ffffff;
  color: var(--form-text);
  font: inherit;
  transition:
    border-color 0.18s ease,
    box-shadow 0.18s ease,
    background-color 0.18s ease;
}
.registration-project-demo__field input:hover,
.registration-project-demo__field select:hover {
  border-color: #adc1d8;
}
.registration-project-demo__field input:focus-visible,
.registration-project-demo__field select:focus-visible,
.registration-project-demo__fieldset input:focus-visible,
.registration-project-demo__checks input:focus-visible {
  border-color: var(--form-focus);
  outline: 3px solid var(--form-focus-ring);
  outline-offset: 2px;
}
.registration-project-demo__field p {
  margin: 0;
  color: var(--form-muted);
  font-size: 0.88rem;
}
.registration-project-demo__field--error input {
  border-color: var(--form-error);
  background: var(--form-error-bg);
}
.registration-project-demo__field--error input:focus-visible {
  outline-color: #fecaca;
}
.registration-project-demo__error {
  color: var(--form-error) !important;
  font-weight: 800;
}
.registration-project-demo__field--success select {
  border-color: var(--form-success);
  background: var(--form-success-bg);
}
.registration-project-demo__field--success p {
  color: #166534;
  font-weight: 750;
}
.registration-project-demo__fieldset {
  display: grid;
  gap: 0.75rem;
  min-width: 0;
  margin: 0;
  padding: 1rem;
  border: 1px solid var(--form-border);
  border-radius: 12px;
  background: var(--form-panel-muted);
}
.registration-project-demo__fieldset legend {
  padding-inline: 0.25rem;
}
.registration-project-demo__fieldset label,
.registration-project-demo__checks label {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  min-width: 0;
  color: var(--form-text);
  line-height: 1.35;
}
.registration-project-demo__fieldset input,
.registration-project-demo__checks input {
  flex: 0 0 auto;
  width: 1.1rem;
  height: 1.1rem;
  margin-top: 0.12rem;
  accent-color: var(--form-focus);
}
.registration-project-demo__checks {
  display: grid;
  gap: 0.75rem;
  min-width: 0;
  padding: 1rem;
  border: 1px solid var(--form-border);
  border-radius: 12px;
  background: #ffffff;
}
.registration-project-demo__checks span {
  min-width: 0;
}
.registration-project-demo__summary {
  display: grid;
  gap: 0.25rem;
  padding: 0.85rem 1rem;
  border: 1px solid #fecaca;
  border-radius: 12px;
  background: var(--form-error-bg);
  color: #7f1d1d;
}
.registration-project-demo__summary strong {
  font-size: 0.95rem;
}
.registration-project-demo__summary span {
  color: #991b1b;
  font-size: 0.9rem;
}
.registration-project-demo__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.registration-project-demo__button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.85rem;
  padding: 0.7rem 1rem;
  border: 1px solid var(--form-focus);
  border-radius: 999px;
  background: var(--form-focus);
  color: #ffffff;
  font: inherit;
  font-weight: 850;
  cursor: pointer;
  transition:
    transform 0.18s ease,
    box-shadow 0.18s ease,
    background-color 0.18s ease,
    opacity 0.18s ease;
  box-shadow: 0 12px 24px rgba(37, 99, 235, 0.17);
}
.registration-project-demo__button:hover:not(:disabled) {
  transform: translateY(-1px);
  background: #1d4ed8;
}
.registration-project-demo__button:active:not(:disabled) {
  transform: translateY(0);
}
.registration-project-demo__button:focus-visible {
  outline: 3px solid var(--form-focus-ring);
  outline-offset: 3px;
}
.registration-project-demo__button:disabled {
  border-color: var(--form-border);
  background: #e2e8f0;
  color: #64748b;
  cursor: not-allowed;
  opacity: 0.72;
  box-shadow: none;
}
.registration-project-demo__button--secondary {
  background: #ffffff;
  color: var(--form-focus);
  box-shadow: none;
}
.component-system-demo {
  --system-bg: #f8fafc;
  --system-surface: #ffffff;
  --system-surface-muted: #eef4fb;
  --system-text: #0f172a;
  --system-muted: #64748b;
  --system-border: #dbe3ef;
  --system-accent: #2563eb;
  --system-accent-strong: #1d4ed8;
  --system-success: #16a34a;
  --system-warning: #d97706;
  --system-error: #dc2626;
  --system-focus: #bfdbfe;
  --system-radius: 12px;

  margin: 1rem 0;
  padding: clamp(1rem, 4vw, 1.5rem);
  border: 1px solid var(--system-border);
  border-radius: var(--radius-lg);
  background: var(--system-bg);
  color: var(--system-text);
}
.component-system-demo__header {
  display: grid;
  gap: 1rem;
  margin-bottom: 1rem;
}
.component-system-demo__eyebrow {
  width: fit-content;
  margin: 0 0 0.4rem;
  padding: 0.3rem 0.65rem;
  border: 1px solid #bfdbfe;
  border-radius: 999px;
  background: #dbeafe;
  color: #1d4ed8;
  font-size: 0.76rem;
  font-weight: 850;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.component-system-demo__header h3 {
  margin: 0;
  font-size: 1.65rem;
  line-height: 1.16;
}
.component-system-demo__header p:not(.component-system-demo__eyebrow) {
  max-width: 60ch;
  margin: 0.35rem 0 0;
  color: var(--system-muted);
}
.component-system-demo__actions,
.component-system-demo__button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}
.component-system-demo__button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0.68rem 1rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 850;
  text-decoration: none;
  transition:
    transform 0.18s ease,
    box-shadow 0.18s ease,
    background-color 0.18s ease,
    border-color 0.18s ease,
    opacity 0.18s ease;
}
.component-system-demo__button:hover:not(:disabled) {
  transform: translateY(-1px);
}
.component-system-demo__button:active:not(:disabled) {
  transform: translateY(0);
}
.component-system-demo__button:focus-visible,
.component-system-demo__form input:focus-visible {
  outline: 3px solid var(--system-focus);
  outline-offset: 3px;
}
.component-system-demo__button:disabled {
  border-color: var(--system-border);
  background: #e2e8f0;
  color: #64748b;
  cursor: not-allowed;
  opacity: 0.72;
  box-shadow: none;
}
.component-system-demo__button--primary {
  border-color: var(--system-accent);
  background: var(--system-accent);
  color: #ffffff;
  box-shadow: 0 12px 24px rgba(37, 99, 235, 0.17);
}
.component-system-demo__button--primary:hover {
  background: var(--system-accent-strong);
}
.component-system-demo__button--secondary {
  border-color: var(--system-border);
  background: #ffffff;
  color: var(--system-accent);
}
.component-system-demo__button--ghost {
  border-color: transparent;
  background: transparent;
  color: var(--system-accent);
}
.component-system-demo__tokens {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 8rem), 1fr));
  gap: 0.75rem;
  margin-bottom: 1rem;
}
.component-system-demo__tokens span {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  min-width: 0;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--system-border);
  border-radius: var(--system-radius);
  background: var(--system-surface);
  color: var(--system-muted);
  font-weight: 800;
}
.component-system-demo__tokens span::before {
  content: "";
  width: 1.1rem;
  height: 1.1rem;
  border-radius: 999px;
  background: var(--swatch);
  box-shadow: inset 0 0 0 1px rgba(15, 23, 42, 0.12);
}
.component-system-demo__grid {
  display: grid;
  gap: 1rem;
}
.component-system-demo__card,
.component-system-demo__stack,
.component-system-demo__form {
  min-width: 0;
  padding: 1rem;
  border: 1px solid var(--system-border);
  border-radius: var(--system-radius);
  background: var(--system-surface);
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.05);
}
.component-system-demo__card {
  display: grid;
  gap: 0.75rem;
  align-content: start;
}
.component-system-demo__card--featured {
  border-color: #93c5fd;
  background: linear-gradient(180deg, #ffffff, #eff6ff);
}
.component-system-demo__meta {
  width: fit-content;
  margin: 0;
  padding: 0.22rem 0.55rem;
  border-radius: 999px;
  background: #e0f2fe;
  color: #075985;
  font-size: 0.78rem;
  font-weight: 850;
}
.component-system-demo__card h4 {
  margin: 0;
  font-size: 1.05rem;
  line-height: 1.25;
}
.component-system-demo__card p:not(.component-system-demo__meta) {
  margin: 0;
  color: var(--system-muted);
}
.component-system-demo__stack {
  display: grid;
  gap: 0.75rem;
}
.component-system-demo__alert {
  display: grid;
  gap: 0.25rem;
  padding: 0.8rem 0.9rem;
  border: 1px solid var(--system-border);
  border-radius: 10px;
  background: var(--system-surface-muted);
}
.component-system-demo__alert strong {
  color: var(--system-text);
}
.component-system-demo__alert span {
  color: var(--system-muted);
  font-size: 0.9rem;
}
.component-system-demo__alert--success {
  border-color: #bbf7d0;
  background: #f0fdf4;
}
.component-system-demo__alert--success strong,
.component-system-demo__alert--success span {
  color: #166534;
}
.component-system-demo__alert--warning {
  border-color: #fed7aa;
  background: #fff7ed;
}
.component-system-demo__alert--warning strong,
.component-system-demo__alert--warning span {
  color: #92400e;
}
.component-system-demo__alert--error {
  border-color: #fecaca;
  background: #fef2f2;
}
.component-system-demo__alert--error strong,
.component-system-demo__alert--error span {
  color: #991b1b;
}
.component-system-demo__form {
  display: grid;
  gap: 0.45rem;
}
.component-system-demo__form label {
  font-weight: 850;
}
.component-system-demo__form input {
  width: 100%;
  min-height: 2.75rem;
  padding: 0.68rem 0.8rem;
  border: 1px solid var(--system-border);
  border-radius: var(--system-radius);
  background: #ffffff;
  color: var(--system-text);
  font: inherit;
}
.component-system-demo__form p {
  margin: 0;
  color: var(--system-muted);
  font-size: 0.88rem;
}
.code-block {
  position: relative;
  background: #0b1220;
  color: #e2e8f0;
  border-radius: 12px;
  padding: 1rem;
  overflow: auto;
}
.copy-btn {
  position: absolute;
  right: 0.75rem;
  top: 0.65rem;
  border: 1px solid #334155;
  background: #1e293b;
  color: #e2e8f0;
  border-radius: 8px;
  padding: 0.35rem 0.55rem;
  font-size: 0.78rem;
}
.progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: transparent;
  z-index: 30;
}
.progress__bar {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, #60a5fa, #22c55e);
}
.site-footer {
  border-top: 1px solid var(--color-border);
  background: #fff;
}
.site-footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1rem 0;
  color: #64748b;
  font-size: 0.95rem;
}

:focus-visible {
  outline: 3px solid #93c5fd;
  outline-offset: 2px;
}

@media (min-width: 760px) {
  .site-nav {
    display: block;
    max-width: min(76vw, 980px);
  }
  .nav-toggle {
    display: none;
  }
  .grid--2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .grid--3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .lesson-layout {
    grid-template-columns: 280px 1fr;
    align-items: start;
  }
  .lesson-content {
    padding: 2rem;
  }
}

@media (max-width: 759px) {
  .site-nav.is-open {
    display: block;
    width: 100%;
  }
  .site-header__inner {
    flex-wrap: wrap;
  }
  .site-nav__list {
    flex-direction: column;
    width: 100%;
    max-height: min(70vh, 34rem);
    overflow-x: hidden;
    overflow-y: auto;
    padding: 0.35rem 0 0.2rem;
  }
  .hero {
    padding: 4rem 0 3.5rem;
  }
  .hero h1 {
    max-width: none;
  }
  .hero__stats {
    grid-template-columns: 1fr;
  }
  .card--lesson {
    min-height: auto;
  }
  .site-footer__inner {
    align-items: flex-start;
    flex-direction: column;
  }
  .flex-demo__topbar {
    align-items: flex-start;
    flex-direction: column;
  }
  .flex-demo__media {
    flex-direction: column;
  }
  .grid-demo__cards {
    grid-template-columns: 1fr;
  }
  .position-demo--sticky {
    grid-template-columns: 1fr;
  }
  .layer-demo__stage {
    min-height: 17rem;
  }
  .layer-demo__layer {
    width: min(12rem, 72%);
  }
  .layer-demo__layer--middle {
    left: 2.2rem;
  }
  .layer-demo__layer--top {
    left: 3.4rem;
  }
  .responsive-demo__frame--desktop .responsive-demo__cards {
    grid-template-columns: 1fr;
  }
  .query-demo__viewport--tablet,
  .query-demo__viewport--desktop {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 760px) {
  .grid-demo__metric--main {
    grid-column: span 2;
    grid-row: span 2;
  }
  .responsive-demo__frames {
    grid-template-columns: minmax(12rem, 0.75fr) minmax(0, 1.25fr);
  }
  .query-demo {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .unit-demo {
    grid-template-columns: minmax(0, 1.25fr) minmax(10rem, 0.75fr);
    align-items: stretch;
  }
  .media-demo {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .media-demo__picture {
    aspect-ratio: 16 / 9;
  }
  .media-demo__frame--compare {
    grid-column: 1 / -1;
  }
  .media-demo__comparison {
    grid-template-columns: repeat(2, minmax(12rem, 1fr));
  }
  .fluid-demo {
    grid-template-columns: minmax(0, 1.2fr) minmax(14rem, 0.8fr);
    align-items: stretch;
  }
  .state-demo {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: stretch;
  }
  .form-demo {
    grid-template-columns: minmax(0, 1.3fr) minmax(14rem, 0.7fr);
    align-items: start;
  }
  .content-demo__layout {
    grid-template-columns: minmax(0, 1fr) minmax(13rem, 0.42fr);
    align-items: start;
  }
  .nav-demo {
    grid-template-columns: minmax(0, 1.25fr) minmax(14rem, 0.75fr);
    align-items: start;
  }
  .table-demo {
    grid-template-columns: minmax(0, 1.35fr) minmax(14rem, 0.65fr);
    align-items: start;
  }
  .separation-demo {
    grid-template-columns: minmax(0, 1.35fr) minmax(14rem, 0.65fr);
    align-items: start;
  }
  .transform-demo {
    grid-template-columns: minmax(0, 1.35fr) minmax(14rem, 0.65fr);
    align-items: start;
  }
  .transition-demo {
    grid-template-columns: minmax(0, 1.35fr) minmax(14rem, 0.65fr);
    align-items: start;
  }
  .animation-demo {
    grid-template-columns: minmax(0, 1.35fr) minmax(14rem, 0.65fr);
    align-items: start;
  }
  .motion-demo {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
  }
  .naming-demo {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
  }
  .token-demo {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
  }
  .cascade-demo {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
  }
  .base-demo {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
  }
  .structure-demo {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
  }
  .pseudo-demo {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
  }
  .container-query-demo {
    grid-template-columns: minmax(16rem, 0.62fr) minmax(0, 1.38fr);
    align-items: start;
  }
  .logical-demo {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: stretch;
  }
  .nesting-demo {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: stretch;
  }
  .theme-demo {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: stretch;
  }
  .profile-project-demo__card {
    grid-template-columns: auto minmax(0, 1fr);
    align-items: start;
  }
  .landing-project-demo__hero {
    grid-template-columns: minmax(0, 1.05fr) minmax(18rem, 0.95fr);
    align-items: center;
  }
  .landing-project-demo__copy h3 {
    font-size: 2.35rem;
  }
  .dashboard-project-demo__header {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: start;
  }
  .dashboard-project-demo__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(16rem, 0.65fr);
    align-items: start;
  }
  .dashboard-project-demo__panel--wide {
    grid-column: 1 / -1;
  }
  .dashboard-project-demo__activity div {
    grid-template-columns: 4.5rem minmax(0, 1fr) minmax(10rem, 0.45fr);
    align-items: center;
  }
  .dashboard-project-demo__activity span {
    grid-row: auto;
  }
  .registration-project-demo__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .registration-project-demo__field--full {
    grid-column: 1 / -1;
  }
  .registration-project-demo__form {
    padding: 1.25rem;
  }
  .component-system-demo__header {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: start;
  }
  .component-system-demo__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: stretch;
  }
  .component-system-demo__stack,
  .component-system-demo__form {
    align-content: start;
  }
}

@keyframes lesson26FadeEnter {
  0% {
    opacity: 0.25;
    transform: translateY(0.55rem);
  }
  35%,
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes lesson26Pulse {
  from {
    transform: scale(0.92);
    box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.38);
  }
  to {
    transform: scale(1);
    box-shadow: 0 0 0 0.55rem rgba(34, 197, 94, 0);
  }
}

@keyframes lesson26Runner {
  from {
    transform: translate(0, -50%) rotate(0deg);
  }
  to {
    transform: translate(calc(min(36rem, 100vw) - 8rem), -50%) rotate(180deg);
  }
}

@keyframes lesson26Progress {
  0% {
    transform: scaleX(0.08);
  }
  70%,
  100% {
    transform: scaleX(1);
  }
}

@keyframes lesson27NoticeEnter {
  0% {
    opacity: 0.25;
    transform: translateY(0.75rem);
  }
  35%,
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes lesson27Pulse {
  from {
    transform: scale(0.92);
    box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.34);
  }
  to {
    transform: scale(1);
    box-shadow: 0 0 0 0.55rem rgba(34, 197, 94, 0);
  }
}

@keyframes lesson27Travel {
  from {
    transform: translate(0, -50%);
  }
  to {
    transform: translate(calc(min(28rem, 100vw) - 7rem), -50%);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}