:root {
  --bg: #f4ecdd;
  --bg-deep: #e8dac0;
  --ink: #17120f;
  --ink-soft: #4a3d31;
  --panel: rgba(255, 249, 240, 0.8);
  --panel-strong: rgba(255, 252, 247, 0.92);
  --line: rgba(53, 34, 24, 0.14);
  --accent: #b63a21;
  --accent-2: #de6c2e;
  --accent-3: #f0be5a;
  --accent-4: #43231a;
  --max: 1120px;
  --radius: 18px;
  --shadow: 0 22px 64px rgba(53, 27, 17, 0.12);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body {
  font-family: "Sora", "Avenir Next", "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 0% 8%, rgba(240, 190, 90, 0.42) 0%, transparent 38%),
    radial-gradient(circle at 100% 18%, rgba(182, 58, 33, 0.18) 0%, transparent 33%),
    radial-gradient(circle at 86% 92%, rgba(222, 108, 46, 0.2) 0%, transparent 34%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-deep) 100%);
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

body.nav-open { overflow: hidden; }

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(112deg, transparent 0 18%, rgba(182, 58, 33, 0.045) 18.5%, transparent 19.5%),
    linear-gradient(118deg, transparent 0 62%, rgba(67, 35, 26, 0.03) 62.5%, transparent 63.5%),
    linear-gradient(124deg, transparent 0 78%, rgba(240, 190, 90, 0.06) 78.5%, transparent 79.5%);
  z-index: -4;
}

.bg-grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.28;
  background-image: linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: radial-gradient(circle at center, black 35%, transparent 100%);
  z-index: -3;
}

.glow {
  position: fixed;
  width: 42rem;
  height: 42rem;
  border-radius: 50%;
  pointer-events: none;
  filter: blur(56px);
  z-index: -2;
}
.glow-a { top: -12rem; left: -14rem; background: rgba(182, 58, 33, 0.2); }
.glow-b { right: -14rem; bottom: -16rem; background: rgba(240, 190, 90, 0.24); }

.site-header {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.2rem 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(12px);
  background: linear-gradient(180deg, rgba(244, 236, 221, 0.82), rgba(244, 236, 221, 0.45));
  border-bottom: 1px solid rgba(53, 34, 24, 0.08);
}

.brand {
  text-decoration: none;
  color: var(--ink);
  display: flex;
  align-items: baseline;
  gap: 0.35rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}
.brand-mark {
  background: linear-gradient(130deg, var(--accent-4) 0%, var(--accent) 40%, var(--accent-2) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 10px 24px rgba(182, 58, 33, 0.12);
}
.brand-sub {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.85rem;
  padding: 0.14rem 0.4rem;
  border: 1px solid rgba(53, 34, 24, 0.12);
  border-radius: 999px;
  background: rgba(255, 250, 243, 0.72);
}

nav {
  display: flex;
  align-items: center;
  gap: 1.1rem;
}

.nav-toggle {
  display: none;
  appearance: none;
  border: 1px solid rgba(53, 34, 24, 0.14);
  background: rgba(255, 252, 247, 0.84);
  border-radius: 12px;
  width: 3rem;
  height: 3rem;
  padding: 0.75rem 0.65rem;
  cursor: pointer;
  box-shadow: 0 12px 28px rgba(53, 27, 17, 0.08);
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  margin: 0.23rem 0;
  border-radius: 999px;
  background: var(--accent-4);
  transition: transform 180ms ease, opacity 180ms ease;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(0.48rem) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-0.48rem) rotate(-45deg);
}

nav a {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  color: var(--ink-soft);
  font-weight: 600;
  font-size: 0.9rem;
  line-height: 1;
  min-height: 2.1rem;
  position: relative;
}

nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.25rem;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-3));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
}

nav a:hover::after {
  transform: scaleX(1);
}

.nav-signin {
  margin-left: 0.35rem;
  padding: 0 0.9rem;
  border-radius: 999px;
  border: 1px solid rgba(182, 58, 33, 0.22);
  background: rgba(255, 252, 247, 0.8);
  color: var(--accent-4);
}

.nav-signin::after {
  display: none;
}

.nav-signin:hover {
  border-color: rgba(182, 58, 33, 0.36);
  color: var(--accent);
}

.nav-github {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-left: 0.35rem;
  padding: 0 0.75rem;
  border-radius: 999px;
  border: 1px solid rgba(23, 18, 15, 0.2);
  background: rgba(23, 18, 15, 0.06);
  color: var(--ink);
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.18s, border-color 0.18s, color 0.18s;
}

.nav-github::after {
  display: none;
}

.nav-github:hover {
  background: rgba(23, 18, 15, 0.12);
  border-color: rgba(23, 18, 15, 0.36);
  color: var(--ink);
}

.github-icon {
  width: 1rem;
  height: 1rem;
  flex-shrink: 0;
}

.github-star-icon {
  color: #e3a008;
  font-size: 0.9rem;
  line-height: 1;
}

main { max-width: var(--max); margin: 0 auto; padding: 1rem; }
section { margin: 2.8rem 0; }

.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 85% 18%, rgba(240, 190, 90, 0.24) 0%, transparent 24%),
    linear-gradient(145deg, rgba(255, 250, 244, 0.95), rgba(246, 231, 209, 0.88));
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 6px);
  padding: 2.4rem;
  box-shadow: var(--shadow);
}

.hero-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
  gap: 1.4rem;
  align-items: center;
}

.hero-body {
  position: relative;
  z-index: 1;
}

.hero-art {
  margin: 0;
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-art img {
  width: min(100%, 29rem);
  height: auto;
  display: block;
  filter: drop-shadow(0 18px 34px rgba(67, 35, 26, 0.18));
}

.hero::before {
  content: "";
  position: absolute;
  inset: auto -4rem -5rem auto;
  width: 20rem;
  height: 20rem;
  background:
    linear-gradient(132deg, transparent 0 50%, rgba(182, 58, 33, 0.14) 50.5%, transparent 54%),
    linear-gradient(132deg, transparent 0 60%, rgba(222, 108, 46, 0.18) 60.5%, transparent 64%),
    linear-gradient(132deg, transparent 0 70%, rgba(240, 190, 90, 0.2) 70.5%, transparent 74%);
  transform: rotate(-8deg);
  pointer-events: none;
}

.eyebrow {
  font-family: "IBM Plex Mono", monospace;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.75rem;
  color: var(--accent);
  margin: 0;
}

.beta-banner {
  display: flex;
  gap: 0.8rem;
  align-items: flex-start;
  margin: 1rem 0 1.2rem;
  padding: 0.95rem 1.05rem;
  max-width: 50rem;
  border: 1px solid rgba(182, 58, 33, 0.28);
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(182, 58, 33, 0.12), rgba(240, 190, 90, 0.2));
  color: var(--accent-4);
  box-shadow: 0 14px 32px rgba(67, 35, 26, 0.08);
}

.beta-banner strong {
  flex: 0 0 auto;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.74rem;
  line-height: 1.4;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.18rem 0.45rem;
  border-radius: 999px;
  background: rgba(67, 35, 26, 0.92);
  color: #fff8ef;
}

.beta-banner span {
  line-height: 1.55;
  color: var(--ink-soft);
  overflow-wrap: anywhere;
}

h1, h2, h3 { margin: 0; line-height: 1.08; }
h1 { font-size: clamp(2.1rem, 5.2vw, 4.3rem); margin-top: 0.7rem; }
h2 { font-size: clamp(1.45rem, 3.2vw, 2.4rem); }
h3 { font-size: 1.05rem; }
h1, h2 { letter-spacing: -0.03em; }

.hero-copy, .card p, .cta p { color: var(--ink-soft); line-height: 1.58; }
.hero-copy { max-width: 67ch; margin: 1rem 0 1.3rem; }
.hero-note {
  margin: 1rem 0 0;
  color: var(--ink-soft);
  font-size: 0.92rem;
}
.hero-note a {
  color: var(--accent);
  font-weight: 700;
}

.hero .code-block {
  margin: 1.45rem 0 1.2rem;
  max-width: 36rem;
  padding: 1.05rem 1.15rem;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  align-items: center;
}

.btn {
  text-decoration: none;
  border-radius: 999px;
  padding: 0.76rem 1.2rem;
  font-weight: 700;
  border: 1px solid transparent;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  background: linear-gradient(120deg, var(--accent) 0%, var(--accent-2) 100%);
  color: #fff8f2;
  box-shadow: 0 12px 28px rgba(182, 58, 33, 0.26);
}
.btn-secondary {
  border-color: rgba(53, 34, 24, 0.18);
  color: var(--ink);
  background: rgba(255, 252, 247, 0.72);
}

.btn-secondary:hover {
  border-color: rgba(182, 58, 33, 0.35);
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.8rem;
  padding: 0;
  margin: 1.6rem 0 0;
  list-style: none;
}
.hero-metrics li {
  background: rgba(255, 251, 246, 0.7);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 0.8rem;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.45);
}
.hero-metrics strong {
  display: block;
  font-size: 1.02rem;
  color: var(--accent-4);
}
.hero-metrics span { color: var(--ink-soft); font-size: 0.84rem; }

.section-title { display: grid; gap: 0.4rem; margin-bottom: 1rem; }
.faq-inline-link {
  margin: 0;
  color: var(--ink-soft);
  line-height: 1.55;
}

.faq-inline-link a,
.faq-card a {
  color: var(--accent);
  font-weight: 700;
}

.cards { display: grid; gap: 0.95rem; }
.two-up { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.three-up { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.card {
  background: linear-gradient(180deg, var(--panel-strong), var(--panel));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.1rem;
  box-shadow: var(--shadow);
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}
.card:hover {
  transform: translateY(-3px);
  border-color: rgba(182, 58, 33, 0.22);
  box-shadow: 0 28px 70px rgba(53, 27, 17, 0.15);
}
.card ul { margin: 0.7rem 0 1rem; padding-left: 1rem; color: var(--ink-soft); }
.card li { margin: 0.4rem 0; }
.price {
  display: inline-block;
  margin-top: 0.45rem;
  background: rgba(67, 35, 26, 0.07);
  border-radius: 999px;
  padding: 0.28rem 0.7rem;
  font-size: 0.85rem;
  font-family: "IBM Plex Mono", monospace;
}

.plan-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.plan-card .btn {
  margin-top: auto;
  display: flex;
  width: 100%;
  justify-content: center;
}

.plan-card.featured {
  border-color: rgba(182, 58, 33, 0.32);
  box-shadow: 0 30px 78px rgba(182, 58, 33, 0.16);
}

.plan-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  width: fit-content;
  padding: 0.3rem 0.65rem;
  border-radius: 999px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: rgba(67, 35, 26, 0.08);
  color: var(--ink-soft);
}

.plan-card.featured .plan-badge {
  background: rgba(182, 58, 33, 0.14);
  color: var(--accent);
}

.plan-price {
  display: flex;
  align-items: baseline;
  gap: 0.35rem;
  margin-top: 0.2rem;
}

.plan-price strong {
  font-size: clamp(2rem, 4.8vw, 3.1rem);
  line-height: 1;
  letter-spacing: -0.05em;
}

.plan-price span {
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.plan-kicker {
  margin: 0;
  color: var(--ink-soft);
  line-height: 1.58;
}

.footnote {
  color: var(--ink-soft);
  font-size: 0.82rem;
  line-height: 1.5;
}

.stack {
  display: grid;
  gap: 0.95rem;
}

.auth-actions {
  display: grid;
  gap: 0.7rem;
  margin-top: 0.9rem;
}

.auth-button {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  text-decoration: none;
  border-radius: 14px;
  padding: 0.9rem 1rem;
  border: 1px solid rgba(53, 34, 24, 0.14);
  background: rgba(255, 252, 247, 0.88);
  color: var(--ink);
  font-weight: 700;
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

.auth-button:hover {
  transform: translateY(-2px);
  border-color: rgba(182, 58, 33, 0.28);
  box-shadow: 0 20px 44px rgba(53, 27, 17, 0.12);
}

.token-box {
  padding: 1rem 1.05rem;
  border-radius: 16px;
  border: 1px dashed rgba(182, 58, 33, 0.28);
  background: rgba(255, 247, 236, 0.86);
}

.token-box strong {
  display: block;
  margin-bottom: 0.45rem;
}

.code-block {
  margin: 0.9rem 0 0;
  padding: 1rem 1.05rem;
  border-radius: 16px;
  border: 1px solid rgba(53, 34, 24, 0.14);
  background: linear-gradient(180deg, rgba(39, 23, 17, 0.98), rgba(24, 15, 11, 0.98));
  color: #f8e7d2;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
  overflow-x: auto;
}

@media (max-width: 720px) {
  .hero .code-block {
    max-width: 100%;
  }

  .hero-cta {
    gap: 0.7rem;
  }
}

.code-block code {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.86rem;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
  overflow-wrap: anywhere;
}

/* ── install platform toggle ──────────────────────────────────────── */
.install-tabs {
  display: flex;
  gap: 0;
  margin-bottom: -1px;
  position: relative;
  z-index: 1;
}

.install-tab {
  padding: 0.45rem 1rem;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  border: 1px solid rgba(53, 34, 24, 0.14);
  border-bottom: none;
  border-radius: 10px 10px 0 0;
  background: rgba(39, 23, 17, 0.82);
  color: #ead8c3;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
  user-select: none;
}

.install-tab[aria-selected="true"] {
  background: linear-gradient(180deg, rgba(39, 23, 17, 0.98), rgba(30, 18, 13, 0.98));
  color: #f8e7d2;
}

.install-tab:hover:not([aria-selected="true"]) {
  background: rgba(39, 23, 17, 0.9);
  color: #f3e4d1;
}

.install-panel {
  display: none;
}

.install-panel[aria-hidden="false"] {
  display: block;
}

.install-block .code-block {
  border-radius: 0 16px 16px 16px;
}

.callout {
  padding: 1rem 1.05rem;
  border-radius: 16px;
  border: 1px solid rgba(182, 58, 33, 0.18);
  background: linear-gradient(180deg, rgba(255, 247, 236, 0.92), rgba(244, 230, 209, 0.88));
  color: var(--ink-soft);
  line-height: 1.6;
  box-shadow: var(--shadow);
}

.callout strong {
  color: var(--ink);
}

.faq-grid {
  align-items: stretch;
}

.faq-card {
  display: grid;
  gap: 0.75rem;
}

.faq-card p {
  margin: 0;
}

.faq-callout {
  font-size: 1rem;
}

.oss { border-top: 5px solid var(--accent); }
.enterprise { border-top: 5px solid var(--accent-3); }

.icon-cards h3 {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.icon {
  width: 1.4rem;
  height: 1.4rem;
  border-radius: 8px;
  background: rgba(182, 58, 33, 0.1);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
}

.icon svg {
  width: 0.95rem;
  height: 0.95rem;
  fill: none;
  stroke: var(--accent);
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.cta {
  padding: 1.6rem;
  border-radius: calc(var(--radius) + 4px);
  border: 1px solid var(--line);
  background: linear-gradient(140deg, rgba(222, 108, 46, 0.16), rgba(240, 190, 90, 0.18));
  box-shadow: var(--shadow);
}

.matrix-wrap {
  background: rgba(255, 252, 247, 0.72);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.matrix {
  width: 100%;
  border-collapse: collapse;
  min-width: 760px;
}

.matrix th,
.matrix td {
  text-align: left;
  padding: 0.72rem 0.8rem;
  border-bottom: 1px solid var(--line);
  font-size: 0.9rem;
}

.matrix th {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-family: "IBM Plex Mono", monospace;
  color: var(--ink-soft);
  background: rgba(67, 35, 26, 0.05);
}

.matrix td:first-child {
  font-weight: 600;
}

.matrix td.matrix-good {
  background: rgba(119, 160, 77, 0.12);
}

.matrix td.matrix-warn {
  background: rgba(240, 190, 90, 0.16);
}

.matrix td.matrix-bad {
  background: rgba(182, 58, 33, 0.12);
}

.endorsements {
  position: relative;
  overflow: hidden;
  padding: 1.55rem 0;
  border-radius: calc(var(--radius) + 4px);
  border: 1px solid var(--line);
  background:
    radial-gradient(circle at 8% 18%, rgba(240, 190, 90, 0.24) 0%, transparent 28%),
    radial-gradient(circle at 92% 80%, rgba(182, 58, 33, 0.14) 0%, transparent 26%),
    linear-gradient(145deg, rgba(255, 249, 242, 0.92), rgba(244, 231, 213, 0.82));
  box-shadow: var(--shadow);
}

.endorsements::before,
.endorsements::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  width: 5rem;
  z-index: 2;
  pointer-events: none;
}

.endorsements::before {
  left: 0;
  background: linear-gradient(90deg, rgba(244, 231, 213, 0.95), rgba(244, 231, 213, 0));
}

.endorsements::after {
  right: 0;
  background: linear-gradient(270deg, rgba(244, 231, 213, 0.95), rgba(244, 231, 213, 0));
}

.endorsements-title {
  padding: 0 1.2rem;
}

.endorsement-marquee {
  display: flex;
  gap: 1rem;
  overflow: hidden;
  margin-top: 1.1rem;
  padding: 0.2rem 0;
}

.endorsement-track {
  display: flex;
  flex: 0 0 auto;
  gap: 1rem;
  min-width: max-content;
  padding-left: 1.2rem;
  animation: endorsement-scroll 42s linear infinite;
}

.endorsement-card {
  width: min(22rem, calc(100vw - 4rem));
  min-height: 100%;
  display: grid;
  gap: 1rem;
  padding: 1.1rem;
  border: 1px solid rgba(53, 34, 24, 0.12);
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(255, 253, 249, 0.96), rgba(255, 247, 236, 0.86));
  box-shadow: 0 18px 42px rgba(53, 27, 17, 0.1);
}

.endorsement-quote {
  margin: 0;
  color: var(--accent-4);
  line-height: 1.65;
  font-size: 0.97rem;
}

.endorsement-quote::before {
  content: "\"";
  font-size: 1.4em;
  line-height: 0;
  color: var(--accent);
}

.endorsement-quote::after {
  content: "\"";
  font-size: 1.4em;
  line-height: 0;
  color: var(--accent);
}

.endorsement-meta {
  display: grid;
  gap: 0.28rem;
  padding-top: 0.85rem;
  border-top: 1px dashed rgba(53, 34, 24, 0.14);
}

.endorsement-meta strong {
  font-size: 0.95rem;
}

.endorsement-meta span {
  color: var(--ink-soft);
  font-size: 0.82rem;
  font-family: "IBM Plex Mono", monospace;
}

@keyframes endorsement-scroll {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(calc(-100% - 1rem));
  }
}

.matrix-note {
  margin: 0;
  padding: 0.7rem 0.8rem 0.8rem;
  color: var(--ink-soft);
  font-size: 0.82rem;
}

.site-footer {
  max-width: var(--max);
  margin: 2.2rem auto;
  padding: 0 1rem;
  color: var(--ink-soft);
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.85rem;
}

.reveal { opacity: 0; transform: translateY(18px) scale(0.99); }
.reveal.show {
  opacity: 1;
  transform: translateY(0) scale(1);
  transition: opacity 550ms ease, transform 550ms ease;
}

@media (max-width: 980px) {
  .three-up { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .hero-metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .matrix-wrap { overflow-x: auto; }
  .hero-layout { grid-template-columns: 1fr; }
  .hero-art { order: -1; }
  .hero-art img { width: min(100%, 24rem); }
  .endorsement-card {
    width: min(20rem, calc(100vw - 4rem));
  }
}

@media (max-width: 760px) {
  .site-header {
    padding-top: 0.8rem;
    padding-bottom: 0.9rem;
    align-items: center;
    gap: 0.75rem;
  }
  .nav-toggle { display: inline-block; }
  nav {
    display: none;
    position: absolute;
    top: calc(100% + 0.45rem);
    left: 1rem;
    right: 1rem;
    padding: 0.8rem;
    border: 1px solid rgba(53, 34, 24, 0.12);
    border-radius: 18px;
    background: rgba(255, 250, 243, 0.98);
    backdrop-filter: blur(14px);
    box-shadow: 0 28px 70px rgba(53, 27, 17, 0.18);
    z-index: 25;
  }
  nav.is-open {
    display: grid;
    gap: 0.2rem;
  }
  nav a {
    min-height: 2.8rem;
    white-space: normal;
    padding: 0.1rem 0.2rem;
  }
  nav a::after { bottom: -0.18rem; }
  .nav-signin {
    margin-left: 0;
    justify-content: center;
    margin-top: 0.25rem;
    min-height: 2.9rem;
  }
  .nav-github {
    margin-left: 0;
    justify-content: center;
    margin-top: 0.25rem;
    min-height: 2.9rem;
  }
  .two-up, .three-up { grid-template-columns: 1fr; }
  .hero {
    padding: 1.2rem;
    margin-top: 0.8rem;
  }
  .hero-layout {
    gap: 1rem;
    align-items: flex-start;
  }
  .hero-art {
    order: 0;
    justify-content: flex-start;
  }
  .hero-art img { width: min(100%, 16rem); }
  .hero-copy { margin: 0.85rem 0 1rem; }
  .hero-metrics { grid-template-columns: 1fr; }
  .brand { letter-spacing: 0.04em; }
  .beta-banner {
    flex-direction: column;
    gap: 0.55rem;
  }
  .endorsements {
    padding-top: 1.25rem;
    padding-bottom: 1.25rem;
  }
  .endorsements::before,
  .endorsements::after {
    width: 2.5rem;
  }
  .endorsement-card {
    width: min(18rem, calc(100vw - 3rem));
  }
}

@media (max-width: 480px) {
  main { padding: 0.8rem; }
  h1 { font-size: clamp(1.9rem, 12vw, 2.8rem); }
  .hero { padding: 1rem; }
  .hero-art img { width: min(100%, 13rem); }
  .hero-copy, .hero-note, .beta-banner span, .matrix-note, .card p, .cta p {
    overflow-wrap: anywhere;
  }
  .hero .code-block {
    padding: 0.9rem 0.95rem;
  }
  .hero .code-block code {
    font-size: 0.78rem;
  }
  .btn {
    width: 100%;
    justify-content: center;
    text-align: center;
  }
  .endorsement-card {
    width: calc(100vw - 2.4rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  .reveal,
  .reveal.show {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .endorsement-marquee {
    overflow-x: auto;
    padding-bottom: 0.35rem;
    scroll-snap-type: x proximity;
  }

  .endorsement-track {
    animation: none;
  }

  .endorsement-card {
    scroll-snap-align: start;
  }

  .endorsement-track[aria-hidden="true"] {
    display: none;
  }
}