:root {
  color-scheme: light;
  --ink: #111318;
  --muted: #5c6270;
  --line: #dde0e6;
  --paper: #fbfaf7;
  --surface: #ffffff;
  --codec: #0f766e;
  --signal: #c2410c;
  --violet: #6d5bd0;
  --soft: #edf7f4;
  --soft-warm: #fff1e8;
  --shadow: 0 18px 50px rgba(17, 19, 24, 0.1);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.55;
}

a {
  color: inherit;
  text-decoration-color: rgba(15, 118, 110, 0.4);
  text-underline-offset: 0.18em;
}

a:hover {
  text-decoration-color: currentColor;
}

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  padding: 0 32px;
  border-bottom: 1px solid rgba(17, 19, 24, 0.1);
  background: rgba(251, 250, 247, 0.88);
  backdrop-filter: blur(18px);
}

.brand {
  font-weight: 800;
  font-size: 20px;
  text-decoration: none;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  font-size: 14px;
  font-weight: 650;
}

.nav-links a {
  text-decoration: none;
  color: #272a31;
}

.hero {
  position: relative;
  min-height: 88vh;
  display: grid;
  align-items: end;
  overflow: hidden;
  padding: 112px 32px 72px;
  background: #111318;
  color: #ffffff;
}

#wave-scene {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(17, 19, 24, 0.88) 0%, rgba(17, 19, 24, 0.58) 44%, rgba(17, 19, 24, 0.2) 100%),
    linear-gradient(180deg, rgba(17, 19, 24, 0.1) 0%, rgba(17, 19, 24, 0.72) 100%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(760px, 100%);
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--codec);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: #79d8ca;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  margin: 0;
  font-size: clamp(68px, 12vw, 148px);
  line-height: 0.9;
  letter-spacing: 0;
}

h2 {
  margin: 0;
  max-width: 780px;
  font-size: clamp(34px, 6vw, 64px);
  line-height: 1.02;
  letter-spacing: 0;
}

h3 {
  margin: 0 0 10px;
  font-size: 20px;
  line-height: 1.18;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 680px;
  margin: 24px 0 0;
  font-size: clamp(19px, 2.4vw, 28px);
  line-height: 1.28;
  color: rgba(255, 255, 255, 0.86);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 8px;
  color: #ffffff;
  font-weight: 800;
  text-decoration: none;
}

.button.primary {
  border-color: transparent;
  background: #79d8ca;
  color: #10201e;
}

.band {
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}

.section,
.band {
  padding: 86px 32px;
}

.section-inner {
  width: min(1120px, 100%);
  margin: 0 auto;
}

.intro-grid,
.split-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 1fr);
  gap: 48px;
  align-items: center;
}

.intro-grid p,
.split-grid p,
.section-heading p {
  margin: 0;
  color: var(--muted);
  font-size: 18px;
}

.section-heading {
  display: grid;
  gap: 16px;
  margin-bottom: 34px;
}

.capability-grid,
.sample-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.capability,
.sample-card,
.code-panel,
.quality-note,
.link-list {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.capability {
  padding: 22px;
  min-height: 214px;
}

.capability p {
  margin: 0;
  color: var(--muted);
}

.status {
  display: inline-flex;
  margin-bottom: 22px;
  padding: 5px 9px;
  border-radius: 8px;
  background: var(--soft);
  color: #0b5f58;
  font-size: 12px;
  font-weight: 850;
  text-transform: uppercase;
}

.status.warning {
  background: var(--soft-warm);
  color: var(--signal);
}

.status.muted {
  background: #f1f1f4;
  color: #555b66;
}

.split {
  background: #f4f7f5;
}

.code-panel {
  overflow: auto;
  padding: 24px;
  background: #171a20;
  color: #eef4f2;
  box-shadow: none;
}

pre {
  margin: 0;
  font: 15px/1.7 ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

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

.sample-card {
  display: grid;
  gap: 16px;
  padding: 20px;
  min-height: 286px;
}

.sample-meta {
  display: grid;
  gap: 7px;
}

.sample-label {
  color: var(--violet);
  font-size: 12px;
  font-weight: 850;
  text-transform: uppercase;
}

.mini-wave {
  width: 100%;
  height: 92px;
  border-radius: 8px;
  background: #f3f5f2;
}

audio {
  width: 100%;
}

audio:not([src]) {
  display: none;
}

.sample-state {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.quality-note {
  margin-top: 18px;
  padding: 20px;
  color: #30343c;
  background: #fffaf5;
  box-shadow: none;
}

.link-list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 24px;
  list-style: none;
  box-shadow: none;
}

.link-list a {
  font-weight: 800;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 32px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  background: var(--surface);
}

@media (max-width: 980px) {
  .capability-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .intro-grid,
  .split-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .site-header {
    position: absolute;
    align-items: flex-start;
    min-height: auto;
    padding: 18px 20px;
    background: transparent;
    border-bottom: 0;
    color: #ffffff;
  }

  .nav-links {
    display: none;
  }

  .hero {
    min-height: 84vh;
    padding: 96px 20px 50px;
  }

  .section,
  .band {
    padding: 58px 20px;
  }

  .capability-grid,
  .sample-grid {
    grid-template-columns: 1fr;
  }

  .site-footer {
    display: grid;
    padding: 28px 20px;
  }
}