:root {
  color-scheme: light dark;
  --md-primary: #b21862;
  --md-on-primary: #ffffff;
  --md-primary-container: #ffd9e6;
  --md-on-primary-container: #3e001d;
  --md-secondary: #735761;
  --md-secondary-container: #ffd9e5;
  --md-tertiary: #9a405f;
  --md-surface: #fff8fa;
  --md-surface-container: #f8edf2;
  --md-surface-container-high: #f0e2e8;
  --md-on-surface: #21191c;
  --md-on-surface-variant: #514348;
  --md-outline: #837379;
  --md-outline-variant: #d5c2c8;
  --md-shadow: rgba(94, 0, 44, 0.16);
  --accent: var(--md-primary);
  --accent-container: var(--md-primary-container);
  --on-accent-container: var(--md-on-primary-container);
  --page-width: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--md-on-surface);
  background:
    radial-gradient(circle at 82% 4%, color-mix(in srgb, var(--accent-container) 72%, transparent), transparent 30rem),
    var(--md-surface);
  font-family: Roboto, Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

body.litert {
  --accent: #b21862;
  --accent-container: #ffd9e6;
  --on-accent-container: #3e001d;
}

body.gguf {
  --accent: #a73567;
  --accent-container: #ffd8e6;
  --on-accent-container: #3d0020;
}

body.bf16 {
  --accent: #8d3b68;
  --accent-container: #ffd7ef;
  --on-accent-container: #37002a;
}

a {
  color: inherit;
}

.app-bar {
  position: sticky;
  z-index: 10;
  top: 0;
  border-bottom: 1px solid color-mix(in srgb, var(--md-outline-variant) 75%, transparent);
  background: color-mix(in srgb, var(--md-surface) 88%, transparent);
  backdrop-filter: blur(18px);
}

.app-bar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(var(--page-width), calc(100% - 32px));
  min-height: 72px;
  margin: 0 auto;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--md-on-surface);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  text-decoration: none;
}

.brand__mark {
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  border-radius: 14px;
  color: var(--md-on-primary);
  background: linear-gradient(145deg, var(--accent), var(--md-tertiary));
  box-shadow: 0 5px 16px color-mix(in srgb, var(--accent) 28%, transparent);
  font-size: 1.25rem;
}

.nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav a {
  padding: 10px 14px;
  border-radius: 999px;
  color: var(--md-on-surface-variant);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
}

.nav a:hover,
.nav a:focus-visible {
  color: var(--on-accent-container);
  background: var(--accent-container);
  outline: none;
}

main {
  width: min(var(--page-width), calc(100% - 32px));
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
  align-items: center;
  min-height: 520px;
  padding: 72px 0 52px;
  gap: clamp(36px, 7vw, 96px);
}

.hero--family {
  grid-template-columns: minmax(0, 1fr);
  min-height: 430px;
  max-width: 900px;
}

.overline {
  margin: 0 0 14px;
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  text-wrap: pretty;
}

h1 {
  max-width: 880px;
  margin: 0;
  font-size: clamp(2.7rem, 7vw, 5.6rem);
  font-weight: 760;
  letter-spacing: -0.055em;
  line-height: 0.98;
}

.hero__summary {
  max-width: 760px;
  margin: 26px 0 0;
  color: var(--md-on-surface-variant);
  font-size: clamp(1.08rem, 2vw, 1.3rem);
  line-height: 1.65;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  margin-top: 28px;
  gap: 10px;
}

.chip {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 6px 13px;
  border: 1px solid var(--md-outline-variant);
  border-radius: 10px;
  color: var(--md-on-surface-variant);
  background: color-mix(in srgb, var(--md-surface) 78%, transparent);
  font-size: 0.82rem;
  font-weight: 700;
}

.hero__visual {
  position: relative;
  display: grid;
  aspect-ratio: 1;
  place-items: center;
}

.orb {
  position: absolute;
  width: 80%;
  height: 80%;
  border-radius: 50%;
  background:
    radial-gradient(circle at 34% 28%, rgba(255, 255, 255, 0.92), transparent 12%),
    radial-gradient(circle at 62% 65%, color-mix(in srgb, var(--accent) 86%, #ffffff), var(--accent-container));
  box-shadow:
    0 28px 70px color-mix(in srgb, var(--accent) 28%, transparent),
    inset -28px -24px 70px color-mix(in srgb, var(--on-accent-container) 22%, transparent);
}

.orb::before,
.orb::after {
  position: absolute;
  content: "";
  border: 1px solid color-mix(in srgb, var(--accent) 38%, transparent);
  border-radius: 50%;
  inset: -14%;
}

.orb::after {
  border-style: dashed;
  inset: -29%;
  transform: rotate(22deg);
}

.section {
  padding: 44px 0;
}

.section__heading {
  max-width: none;
  margin-bottom: 26px;
}

.section h2 {
  margin: 0 0 10px;
  font-size: clamp(1.75rem, 4vw, 2.65rem);
  letter-spacing: -0.035em;
  line-height: 1.1;
}

.section__heading p,
.muted {
  color: var(--md-on-surface-variant);
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.grid--two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card {
  position: relative;
  overflow: hidden;
  padding: 26px;
  border: 1px solid var(--md-outline-variant);
  border-radius: 24px;
  background: color-mix(in srgb, var(--md-surface-container) 82%, transparent);
  box-shadow: 0 10px 30px rgba(29, 27, 32, 0.05);
}

.card--link {
  min-height: 210px;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.card--link:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: 0 18px 44px var(--md-shadow);
}

.card h3 {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 1.35rem;
  letter-spacing: -0.02em;
}

.card p {
  margin: 0;
  color: var(--md-on-surface-variant);
}

.card__action {
  display: inline-flex;
  margin-top: 22px;
  color: var(--accent);
  font-weight: 750;
  text-decoration: none;
}

.card__action + .card__action {
  margin-left: 16px;
}

.statement {
  margin: 26px 0;
  padding: clamp(28px, 5vw, 54px);
  border-radius: 32px;
  color: var(--on-accent-container);
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--accent-container) 92%, white), var(--accent-container));
}

.statement p {
  max-width: 950px;
  margin: 0;
  font-size: clamp(1.45rem, 3.8vw, 2.5rem);
  font-weight: 680;
  letter-spacing: -0.032em;
  line-height: 1.24;
}

.facts {
  display: grid;
  margin: 0;
}

.fact {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  padding: 15px 0;
  border-bottom: 1px solid var(--md-outline-variant);
  gap: 20px;
}

.fact:last-child {
  border-bottom: 0;
}

.fact dt {
  color: var(--md-on-surface-variant);
  font-size: 0.84rem;
  font-weight: 750;
  letter-spacing: 0.02em;
}

.fact dd {
  margin: 0;
  font-weight: 620;
}

.task-list {
  display: flex;
  flex-wrap: wrap;
  margin: 18px 0 0;
  padding: 0;
  gap: 10px;
  list-style: none;
}

.task-list li {
  padding: 10px 14px;
  border-radius: 12px;
  color: var(--on-accent-container);
  background: var(--accent-container);
  font-size: 0.88rem;
  font-weight: 700;
}

.notice {
  padding: 22px 24px;
  border-left: 4px solid var(--accent);
  border-radius: 4px 18px 18px 4px;
  color: var(--md-on-surface-variant);
  background: var(--md-surface-container);
}

.notice strong {
  color: var(--md-on-surface);
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  margin-top: 30px;
  gap: 12px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  border-radius: 999px;
  color: var(--md-on-primary);
  background: var(--accent);
  box-shadow: 0 4px 12px color-mix(in srgb, var(--accent) 24%, transparent);
  font-weight: 750;
  text-decoration: none;
}

.button--tonal {
  color: var(--on-accent-container);
  background: var(--accent-container);
  box-shadow: none;
}

footer {
  width: min(var(--page-width), calc(100% - 32px));
  margin: 48px auto 0;
  padding: 30px 0 44px;
  border-top: 1px solid var(--md-outline-variant);
  color: var(--md-on-surface-variant);
  font-size: 0.88rem;
}

@media (max-width: 820px) {
  .nav {
    display: none;
  }

  .hero,
  .grid,
  .grid--two {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 56px;
  }

  .overline {
    font-size: 0.86rem;
    line-height: 1.35;
  }

  h1 {
    font-size: clamp(3.15rem, 14vw, 4.8rem);
    line-height: 0.96;
  }

  .hero__summary {
    font-size: clamp(1.18rem, 5.1vw, 1.42rem);
    line-height: 1.58;
  }

  .chip {
    font-size: 0.9rem;
  }

  .section h2 {
    font-size: clamp(2rem, 8.5vw, 2.8rem);
  }

  .section__heading p,
  .card p,
  .notice,
  footer {
    font-size: 1rem;
    line-height: 1.6;
  }

  .card h3 {
    font-size: 1.5rem;
    line-height: 1.2;
  }

  .card__action,
  .button {
    font-size: 1rem;
  }

  .statement p {
    font-size: clamp(1.65rem, 7.5vw, 2.35rem);
    line-height: 1.22;
  }

  .hero__visual {
    width: min(320px, 78vw);
    margin: 18px auto 20px;
  }

  .fact {
    grid-template-columns: 1fr;
    gap: 4px;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --md-primary: #ffafd0;
    --md-on-primary: #640033;
    --md-primary-container: #8c0049;
    --md-on-primary-container: #ffd9e6;
    --md-secondary: #e2bdc8;
    --md-secondary-container: #59404a;
    --md-tertiary: #ffb1c8;
    --md-surface: #171114;
    --md-surface-container: #241c20;
    --md-surface-container-high: #2f262a;
    --md-on-surface: #ebdfe3;
    --md-on-surface-variant: #d5c2c8;
    --md-outline: #9e8c92;
    --md-outline-variant: #514348;
    --md-shadow: rgba(0, 0, 0, 0.44);
  }

  body.litert {
    --accent: #ffafd0;
    --accent-container: #8c0049;
    --on-accent-container: #ffd9e6;
  }

  body.gguf {
    --accent: #ffb0d0;
    --accent-container: #7a164b;
    --on-accent-container: #ffd8e6;
  }

  body.bf16 {
    --accent: #efb4d7;
    --accent-container: #6f2354;
    --on-accent-container: #ffd7ef;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .card--link {
    transition: none;
  }
}