:root {
  --bg: #d9d6d2;
  --bg-strong: #edeae6;
  --surface: rgba(250, 250, 248, 0.78);
  --surface-strong: #f6f3ef;
  --line: rgba(74, 60, 46, 0.14);
  --text: #0d0d0d;
  --muted: #4a3c2e;
  --accent: #8b5e3c;
  --accent-glow: #c4956a;
  --success: #3a9d5c;
  --shadow: 0 24px 80px rgba(33, 25, 19, 0.12);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --max-width: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Space Grotesk", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(196, 149, 106, 0.35), transparent 28%),
    radial-gradient(circle at top right, rgba(58, 157, 92, 0.16), transparent 20%),
    linear-gradient(180deg, #e4dfda 0%, var(--bg) 35%, #d1ccc6 100%);
}

a {
  color: inherit;
}

img {
  display: block;
  max-width: 100%;
}

.site-shell {
  width: min(calc(100% - 2rem), var(--max-width));
  margin: 0 auto;
  padding: 1.25rem 0 4rem;
}

.topbar,
.footer,
.hero,
.release-strip,
.doc-card,
.doc-hero,
.metrics article,
.feature-card {
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.topbar,
.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.topbar {
  padding: 0.75rem 0 1.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  text-decoration: none;
}

.brand__icon {
  width: 56px;
  height: 56px;
  border-radius: 18px;
  box-shadow: 0 16px 35px rgba(48, 34, 22, 0.18);
}

.eyebrow {
  margin: 0;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

.brand__tag,
.footer__text,
.hero__note,
.metric-label,
.feature-card p,
.doc-card p,
.doc-card li,
.doc-hero p {
  color: var(--muted);
}

.brand__tag {
  margin: 0.2rem 0 0;
  font-size: 0.95rem;
}

.topbar__nav,
.footer__links,
.release-strip__links {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.topbar__nav a,
.footer__links a,
.release-strip__links a {
  text-decoration: none;
  color: var(--muted);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  gap: 2rem;
  align-items: center;
  padding: 2rem 0 1rem;
}

.hero__copy h1,
.doc-hero h1,
.release-strip h2,
.feature-card h2,
.feature-card h3,
.doc-card h2 {
  margin: 0;
  line-height: 0.95;
}

.hero__copy h1,
.doc-hero h1 {
  font-family: "Instrument Serif", serif;
  font-size: clamp(3.3rem, 9vw, 6.3rem);
  font-weight: 400;
  letter-spacing: -0.05em;
  max-width: 12ch;
}

.hero__lede,
.doc-hero p {
  font-size: 1.08rem;
  line-height: 1.7;
  max-width: 58ch;
}

.hero__actions {
  display: flex;
  gap: 0.9rem;
  margin: 2rem 0 0.75rem;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0.9rem 1.3rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
}

.button--primary {
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-glow));
  box-shadow: 0 14px 30px rgba(139, 94, 60, 0.28);
}

.button--ghost {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.35);
}

.hero__visual {
  position: relative;
  display: flex;
  justify-content: center;
}

.hero__visual::before {
  content: "";
  position: absolute;
  inset: 10% 0 auto;
  height: 80%;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(196, 149, 106, 0.28), transparent 60%);
  filter: blur(24px);
}

.device-card {
  position: relative;
  width: min(100%, 420px);
  min-height: 520px;
  padding: 1.25rem;
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 40px;
  background:
    linear-gradient(180deg, rgba(18, 18, 16, 0.94), rgba(38, 38, 38, 0.96)),
    linear-gradient(145deg, rgba(255, 255, 255, 0.1), transparent);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.device-card__top,
.device-card__stats {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--success);
  box-shadow: 0 0 0 8px rgba(58, 157, 92, 0.14);
}

.status-pill,
.panel-kicker,
.stat-label {
  color: #a89888;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.device-card__stats {
  margin-top: 1.5rem;
}

.stat-value,
.panel-text {
  margin: 0.35rem 0 0;
  color: #f8f5f1;
}

.stat-value {
  font-size: 1.35rem;
  font-weight: 700;
}

.device-card__panel {
  margin-top: 1.5rem;
  padding: 1rem;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.panel-text {
  font-size: 1.1rem;
  line-height: 1.45;
}

.device-card__barbell {
  position: absolute;
  left: 1.25rem;
  right: 1.25rem;
  bottom: 1.5rem;
  display: grid;
  grid-template-columns: 0.8fr 1fr 5fr 1fr 0.8fr;
  align-items: center;
  gap: 0.4rem;
  height: 84px;
}

.device-card__barbell span {
  display: block;
  height: 100%;
  border-radius: 14px;
}

.device-card__barbell span:nth-child(1),
.device-card__barbell span:nth-child(5) {
  background: linear-gradient(180deg, #d4b84a, #8b5e3c);
}

.device-card__barbell span:nth-child(2),
.device-card__barbell span:nth-child(4) {
  background: linear-gradient(180deg, #d4584f, #8c2f28);
}

.device-card__barbell span:nth-child(3) {
  height: 12px;
  background: linear-gradient(90deg, #d9d6d2, #8c7a69, #d9d6d2);
  align-self: center;
}

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

.metrics article,
.feature-card,
.release-strip,
.doc-card,
.doc-hero {
  border: 1px solid rgba(255, 255, 255, 0.48);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.metrics article {
  padding: 1.25rem;
  border-radius: var(--radius-lg);
}

.metric-value {
  margin: 0;
  font-size: 1.6rem;
  font-weight: 700;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.feature-card {
  padding: 1.4rem;
  border-radius: var(--radius-lg);
}

.feature-card--wide {
  grid-column: span 2;
  padding: 1.7rem;
  background:
    linear-gradient(135deg, rgba(139, 94, 60, 0.16), rgba(255, 255, 255, 0.35)),
    var(--surface);
}

.feature-card h2 {
  font-family: "Instrument Serif", serif;
  font-size: clamp(2rem, 5vw, 3.4rem);
  font-weight: 400;
  letter-spacing: -0.04em;
  max-width: 12ch;
}

.feature-card h3,
.doc-card h2,
.release-strip h2 {
  font-size: 1.35rem;
  line-height: 1.15;
}

.feature-card p,
.doc-card p,
.doc-card li {
  line-height: 1.7;
}

.release-strip {
  margin-top: 3rem;
  padding: 1.6rem;
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.footer {
  padding: 2rem 0 0;
  margin-top: 2rem;
  border-top: 1px solid var(--line);
}

.doc-layout {
  max-width: 860px;
  margin: 0 auto;
}

.doc-hero {
  padding: 1.75rem;
  border-radius: var(--radius-xl);
  margin: 1.25rem 0;
}

.doc-card {
  padding: 1.35rem 1.5rem;
  border-radius: var(--radius-lg);
  margin-bottom: 1rem;
}

.doc-card ul {
  margin: 0.6rem 0 0;
  padding-left: 1.2rem;
}

.doc-card--accent {
  background:
    linear-gradient(135deg, rgba(139, 94, 60, 0.18), rgba(196, 149, 106, 0.12)),
    var(--surface-strong);
}

.support-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

@media (max-width: 900px) {
  .hero,
  .metrics,
  .feature-grid,
  .support-grid,
  .release-strip,
  .topbar,
  .footer {
    grid-template-columns: 1fr;
  }

  .topbar,
  .footer,
  .release-strip {
    flex-direction: column;
    align-items: flex-start;
  }

  .feature-card--wide {
    grid-column: span 1;
  }
}

@media (max-width: 640px) {
  .site-shell {
    width: min(calc(100% - 1rem), var(--max-width));
  }

  .hero {
    padding-top: 1rem;
  }

  .hero__copy h1,
  .doc-hero h1 {
    max-width: none;
    font-size: clamp(2.7rem, 15vw, 4rem);
  }

  .device-card {
    min-height: 460px;
    border-radius: 32px;
  }

  .button {
    width: 100%;
  }
}