/* ============================================================
   Quantara Health AI — landing page
   Editorial, research-first aesthetic. Paper white + evergreen.
   ============================================================ */

:root {
  --paper: #FAF8F4;
  --ink: #101714;
  --ink-soft: #3E4A44;
  --ink-faint: #75817B;
  --evergreen: #0E5E52;
  --evergreen-deep: #0A463D;
  --evergreen-tint: #E3EDE9;
  --hairline: #DAD5CB;
  --dark-bg: #101714;
  --dark-ink: #F2F0EA;
  --dark-soft: #A9B4AD;
  --dark-hairline: #2A342E;
  --dark-accent: #7FC4B4;

  --font-display: "Inter", -apple-system, system-ui, sans-serif;
  --font-body: "Inter", -apple-system, system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;

  --container: 1120px;
}

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

::selection { background: var(--evergreen); color: #fff; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

/* Film grain over everything, Mercury-style tactility */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 100;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
  opacity: 0.035;
  pointer-events: none;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.mono {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1, h2, h3, .cta-line, .lede {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.025em;
}

.lede {
  font-weight: 500;
  letter-spacing: -0.02em;
}

em {
  font-style: normal;
  color: var(--evergreen);
}

a { color: inherit; }

/* ---------- Nav ---------- */

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--paper) 72%, transparent);
  backdrop-filter: blur(14px) saturate(1.4);
  -webkit-backdrop-filter: blur(14px) saturate(1.4);
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s, background 0.25s, box-shadow 0.25s;
}

.nav.scrolled {
  background: color-mix(in srgb, var(--paper) 86%, transparent);
  border-bottom-color: var(--hairline);
  box-shadow: 0 8px 32px -20px rgba(16, 23, 20, 0.25);
}

.nav-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.wordmark {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  text-decoration: none;
}

.wordmark-dot { color: var(--evergreen); }

.nav-links {
  display: flex;
  gap: 28px;
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  color: var(--ink-soft);
  transition: color 0.15s;
}

.nav-links a:hover { color: var(--evergreen); }

/* ---------- Buttons ---------- */

.btn {
  display: inline-block;
  padding: 14px 28px;
  background: linear-gradient(180deg, #147263, var(--evergreen));
  color: #fff;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 999px;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.18),
    0 1px 2px rgba(16, 23, 20, 0.2),
    0 8px 24px -12px rgba(14, 94, 82, 0.5);
  transition: background 0.15s, transform 0.15s, box-shadow 0.15s;
}

.btn:hover {
  background: linear-gradient(180deg, #10604F, var(--evergreen-deep));
  transform: translateY(-1px);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.14),
    0 2px 4px rgba(16, 23, 20, 0.2),
    0 12px 32px -12px rgba(14, 94, 82, 0.55);
}

.btn:active { transform: translateY(0); }

.btn-small { padding: 10px 20px; font-size: 0.875rem; }

.btn-ghost {
  background: transparent;
  color: var(--evergreen);
  box-shadow: inset 0 0 0 1.5px var(--evergreen);
}

.btn-ghost:hover { background: var(--evergreen-tint); }

/* ---------- Hero ---------- */

.hero {
  position: relative;
  padding: 100px 0 96px;
  border-bottom: 1px solid var(--hairline);
  background:
    radial-gradient(ellipse 60% 50% at 85% 10%, var(--evergreen-tint), transparent 70%),
    var(--paper);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, var(--ink-faint) 1px, transparent 1px);
  background-size: 26px 26px;
  opacity: 0.14;
  -webkit-mask-image: radial-gradient(ellipse 70% 80% at 75% 20%, black, transparent 70%);
  mask-image: radial-gradient(ellipse 70% 80% at 75% 20%, black, transparent 70%);
  pointer-events: none;
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}

/* Let columns shrink below their content's min width so the
   terminal scrolls internally instead of overflowing the page */
.hero-grid > * { min-width: 0; }

.kicker { color: var(--evergreen); margin-bottom: 28px; }

.hero h1 {
  font-size: clamp(2.375rem, 4.2vw, 3.6rem);
  max-width: 20ch;
}

.hero-sub {
  max-width: 56ch;
  margin-top: 32px;
  font-size: 1.1875rem;
  color: var(--ink-soft);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 40px;
}

.hero-note {
  margin-top: 56px;
  color: var(--ink-faint);
}

/* ---------- Hero terminal mockup ---------- */

.hero-demo {
  position: relative;
  animation: demo-float 7s ease-in-out infinite alternate;
}

@keyframes demo-float {
  from { transform: translateY(-5px); }
  to   { transform: translateY(6px); }
}

.terminal {
  background: #0B1210;
  border: 1px solid rgba(127, 196, 180, 0.16);
  border-radius: 16px;
  box-shadow:
    0 40px 80px -24px rgba(16, 23, 20, 0.45),
    0 0 0 1px rgba(16, 23, 20, 0.04),
    0 0 80px -20px rgba(14, 94, 82, 0.35);
  overflow: hidden;
}

.terminal-bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 13px 18px;
  border-bottom: 1px solid var(--dark-hairline);
  background: rgba(242, 240, 234, 0.02);
}

.t-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--dark-hairline);
}

.terminal-title {
  margin-left: auto;
  color: var(--dark-soft);
  text-transform: none;
  letter-spacing: 0.04em;
}

.terminal pre {
  padding: 22px 24px 26px;
  overflow-x: auto;
}

.terminal code {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1.75;
  color: var(--dark-ink);
}

.result-chip {
  position: absolute;
  left: -26px;
  bottom: 30px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 18px 12px 14px;
  background: var(--paper);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  box-shadow: 0 20px 48px -16px rgba(16, 23, 20, 0.35);
}

.chip-check {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--evergreen);
  color: #fff;
  font-size: 0.8125rem;
  font-weight: 600;
}

.chip-body { display: flex; flex-direction: column; }

.chip-body strong { font-size: 0.9375rem; letter-spacing: -0.01em; }

.chip-meta { color: var(--ink-faint); }

/* ---------- Code tokens ---------- */

.tok-key  { color: #A9C5BC; }
.tok-str  { color: var(--dark-accent); }
.tok-num  { color: #D4A27F; }
.tok-bool { color: #D4A27F; }
.tok-cmt  { color: var(--dark-soft); }
.tok-dim  { color: var(--dark-soft); }

/* ---------- Sections ---------- */

.section { padding: 110px 0; }

.section-head {
  display: flex;
  align-items: baseline;
  gap: 20px;
  margin-bottom: 24px;
}

.sec-num { color: var(--evergreen); }

.section-dark .sec-num { color: var(--dark-accent); }

.section h2 { font-size: clamp(2rem, 4vw, 2.75rem); }

.section-intro {
  max-width: 52ch;
  color: var(--ink-soft);
  margin-bottom: 64px;
}

.lede {
  font-size: clamp(1.5rem, 3vw, 2.125rem);
  line-height: 1.3;
  max-width: 24ch;
}

/* ---------- Thesis ---------- */

.thesis-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 64px;
  margin-top: 40px;
}

.thesis-body p + p { margin-top: 20px; }
.thesis-body { color: var(--ink-soft); }

.contrast-row { margin-top: 72px; }

.contrast-label { color: var(--evergreen); margin-bottom: 14px; }

/* ---------- Architecture (dark) ---------- */

.section-dark {
  background: var(--dark-bg);
  color: var(--dark-ink);
}

.section-dark em { color: var(--dark-accent); }
.section-dark .section-intro { color: var(--dark-soft); }

.arch-grid { display: grid; gap: 20px; }

.arch-grid-cols { grid-template-columns: 1fr 1fr; }

.arch-card {
  border: 1px solid var(--dark-hairline);
  border-radius: 16px;
  padding: 40px 44px;
  background: color-mix(in srgb, var(--dark-ink) 3%, transparent);
}

.arch-label { color: var(--dark-accent); margin-bottom: 16px; }

.arch-card h3 { font-size: 1.875rem; }

.arch-tag { margin: 8px 0 20px; color: var(--dark-soft); font-family: var(--font-display); font-size: 1.125rem; }

.arch-card ul { list-style: none; }

.arch-card li {
  padding: 12px 0 12px 28px;
  position: relative;
  color: var(--dark-soft);
  border-top: 1px solid var(--dark-hairline);
}

.arch-card li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--dark-accent);
}

.arch-connector {
  text-align: center;
  color: var(--dark-soft);
}

.arch-connector .mono { text-transform: none; letter-spacing: 0.04em; }

/* ---------- API cards (dark) ---------- */

.api-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.api-card {
  border: 1px solid var(--dark-hairline);
  border-radius: 14px;
  padding: 28px;
  background:
    radial-gradient(120% 100% at 50% 0%, rgba(127, 196, 180, 0.05), transparent 60%),
    color-mix(in srgb, var(--dark-ink) 3%, transparent);
  transition: border-color 0.2s, transform 0.25s, box-shadow 0.25s;
}

.api-card:hover {
  border-color: rgba(127, 196, 180, 0.5);
  transform: translateY(-3px);
  box-shadow: 0 20px 48px -20px rgba(0, 0, 0, 0.6), 0 0 40px -16px rgba(127, 196, 180, 0.25);
}

.api-endpoint {
  color: var(--dark-accent);
  text-transform: none;
  letter-spacing: 0.04em;
  margin-bottom: 14px;
}

.api-card h3 { font-size: 1.1875rem; margin-bottom: 8px; }

.api-card p:last-child { color: var(--dark-soft); font-size: 0.9375rem; }

/* ---------- Quickstart code blocks ---------- */

.quickstart-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 20px;
  align-items: start;
}

.code-block {
  background: var(--dark-bg);
  border-radius: 14px;
  overflow: hidden;
}

.code-head {
  color: var(--dark-soft);
  padding: 14px 24px;
  border-bottom: 1px solid var(--dark-hairline);
}

.code-block pre {
  padding: 24px;
  overflow-x: auto;
}

.code-block code {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--dark-ink);
}

/* ---------- Solutions ---------- */

.sol-group + .sol-group { margin-top: 72px; }

.sol-audience {
  font-size: 1.1875rem;
  padding-bottom: 16px;
  margin-bottom: 28px;
  border-bottom: 1px solid var(--hairline);
}

.sol-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.sol-card {
  border: 1px solid var(--hairline);
  border-radius: 14px;
  padding: 28px;
  background: #fff;
  transition: border-color 0.2s, box-shadow 0.25s, transform 0.25s;
}

.sol-card:hover {
  border-color: var(--evergreen);
  transform: translateY(-3px);
  box-shadow: 0 16px 40px -12px rgba(14, 94, 82, 0.16);
}

.sol-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--evergreen-tint);
  color: var(--evergreen);
  margin-bottom: 18px;
}

.sol-card h4 {
  font-size: 1.0625rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.sol-card p { font-size: 0.9375rem; color: var(--ink-soft); }

/* ---------- Research (dark) ---------- */

.pub-list { border-top: 1px solid var(--dark-hairline); }

.pub {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 32px;
  padding: 32px 0;
  border-bottom: 1px solid var(--dark-hairline);
}

.pub-meta { display: flex; flex-direction: column; gap: 4px; }

.pub-id { color: var(--dark-accent); font-size: 0.9375rem; }

.pub-year { color: var(--dark-soft); }

.pub-body h3 { font-size: 1.1875rem; margin-bottom: 6px; }

.pub-body p { color: var(--dark-soft); font-size: 0.9375rem; }

/* ---------- Deployment ---------- */

.deploy-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 64px;
  align-items: start;
  margin-top: 40px;
}

.deploy-grid .lede { margin-bottom: 20px; }

.deploy-grid p { color: var(--ink-soft); }

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

.deploy-label { color: var(--evergreen); margin-bottom: 16px; }

.platform-list {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border-top: 1px solid var(--hairline);
}

.platform-list li {
  padding: 14px 4px;
  border-bottom: 1px solid var(--hairline);
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
}

/* ---------- CTA ---------- */

.section-cta {
  border-top: 1px solid var(--hairline);
  background:
    radial-gradient(ellipse 50% 60% at 15% 100%, var(--evergreen-tint), transparent 70%),
    var(--paper);
}

.cta-line {
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  margin: 24px 0;
}

.section-cta .section-intro { margin-bottom: 40px; }

/* ---------- Footer ---------- */

.footer {
  position: relative;
  background: var(--dark-bg);
  color: var(--dark-ink);
  padding: 64px 0 150px;
  overflow: hidden;
}

.footer::after {
  content: "Quantara";
  position: absolute;
  left: 50%;
  bottom: -0.42em;
  transform: translateX(-50%);
  font-family: var(--font-display);
  font-size: clamp(7rem, 19vw, 15rem);
  font-weight: 700;
  letter-spacing: -0.045em;
  white-space: nowrap;
  color: rgba(242, 240, 234, 0.045);
  pointer-events: none;
  user-select: none;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 32px;
  flex-wrap: wrap;
}

.footer-tag {
  color: var(--dark-soft);
  font-size: 0.9375rem;
  margin-top: 8px;
  max-width: 40ch;
}

.footer-meta {
  color: var(--dark-soft);
  text-align: right;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

/* ---------- API card links & coming-soon badges ---------- */

.api-card-link {
  display: block;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}

.api-cta {
  margin-top: 18px;
  color: var(--dark-accent);
  text-transform: none;
  letter-spacing: 0.04em;
  transition: transform 0.2s;
}

.api-card-link:hover .api-cta { transform: translateX(3px); }

.api-card p.api-soon {
  margin-top: 18px;
  color: var(--dark-soft);
  font-size: 0.6875rem;
}

/* ---------- Docs pages ---------- */

.docs-header {
  padding: 88px 0 56px;
  border-bottom: 1px solid var(--hairline);
  background:
    radial-gradient(ellipse 60% 60% at 85% 0%, var(--evergreen-tint), transparent 70%),
    var(--paper);
}

.docs-endpoint {
  color: var(--evergreen);
  text-transform: none;
  letter-spacing: 0.04em;
  margin-bottom: 18px;
}

.docs-header h1 { font-size: clamp(2rem, 4vw, 2.75rem); }

.docs-intro {
  max-width: 62ch;
  margin-top: 20px;
  color: var(--ink-soft);
}

.docs-base { margin-top: 28px; color: var(--ink-faint); }

.docs-base code { text-transform: none; letter-spacing: 0.02em; }

.docs-section { padding: 64px 0; border-bottom: 1px solid var(--hairline); }

.docs-section h2 { font-size: 1.625rem; margin-bottom: 12px; }

.docs-section h3 { font-size: 1.125rem; margin: 36px 0 12px; }

.docs-section p { max-width: 68ch; color: var(--ink-soft); margin-bottom: 12px; }

.docs-sig {
  color: var(--evergreen);
  text-transform: none;
  letter-spacing: 0.04em;
  margin-bottom: 16px;
}

.docs-h2-gap { margin-top: 56px; }

.docs code, .docs-table code {
  font-family: var(--font-mono);
  font-size: 0.8125em;
  background: color-mix(in srgb, var(--ink) 6%, transparent);
  padding: 2px 6px;
  border-radius: 6px;
}

.docs .code-block code { background: none; padding: 0; }

.docs-table-wrap { overflow-x: auto; margin: 16px 0 8px; }

.docs-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9063rem;
}

.docs-table th {
  text-align: left;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-faint);
  font-weight: 500;
  padding: 10px 16px 10px 0;
  border-bottom: 1px solid var(--hairline);
}

.docs-table td {
  vertical-align: top;
  padding: 12px 16px 12px 0;
  border-bottom: 1px solid var(--hairline);
  color: var(--ink-soft);
}

.docs-table td:first-child { white-space: nowrap; }

.docs-example { margin: 20px 0 8px; }

.docs-single { max-width: 720px; margin-top: 20px; }

/* ---------- Contact form ---------- */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 64px;
  align-items: start;
}

.contact-form {
  display: grid;
  gap: 14px;
  padding: 32px;
  background: #fff;
  border: 1px solid var(--hairline);
  border-radius: 16px;
  box-shadow: 0 24px 56px -32px rgba(16, 23, 20, 0.25);
}

.contact-form label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--ink-soft);
  display: grid;
  gap: 6px;
}

.contact-form input,
.contact-form textarea {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--hairline);
  border-radius: 10px;
  padding: 12px 14px;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--evergreen);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--evergreen) 15%, transparent);
}

.contact-form textarea { resize: vertical; min-height: 120px; }

.contact-form .btn { border: 0; cursor: pointer; justify-self: start; }

.contact-note { font-size: 0.8125rem; color: var(--ink-faint); }

/* ---------- API playground ---------- */

.pg-presets { display: flex; flex-wrap: wrap; gap: 10px; margin: 20px 0; }

.playground {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 16px;
}

.playground textarea {
  display: block;
  width: 100%;
  min-height: 340px;
  background: transparent;
  border: 0;
  outline: none;
  resize: vertical;
  padding: 22px 24px;
  color: var(--dark-ink);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.7;
}

.playground pre { min-height: 340px; }

.pg-actions { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }

.pg-actions .btn { border: 0; cursor: pointer; }

.pg-actions .btn:disabled { opacity: 0.6; cursor: wait; }

/* ---------- Free trial section ---------- */

.trial-points {
  list-style: none;
  margin: 28px 0;
}

.trial-points li {
  position: relative;
  padding: 10px 0 10px 30px;
  color: var(--dark-soft);
  border-top: 1px solid var(--dark-hairline);
}

.trial-points li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--dark-accent);
  font-weight: 600;
}

.trial-mono { text-transform: none; color: var(--dark-accent); }

.trial-upgrade { color: var(--dark-soft); max-width: 46ch; }

.trial-upgrade a { color: var(--dark-accent); font-weight: 600; text-decoration: none; }

.trial-upgrade a:hover { text-decoration: underline; }

.trial-card {
  background: color-mix(in srgb, var(--dark-ink) 4%, transparent);
  border: 1px solid var(--dark-hairline);
  border-radius: 16px;
  padding: 32px;
}

.trial-card form { display: grid; gap: 14px; }

.trial-card label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--dark-soft);
  display: grid;
  gap: 6px;
}

.trial-optional { font-weight: 400; color: var(--dark-soft); }

.trial-card input {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--dark-ink);
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--dark-hairline);
  border-radius: 10px;
  padding: 12px 14px;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.trial-card input:focus {
  border-color: var(--dark-accent);
  box-shadow: 0 0 0 3px rgba(127, 196, 180, 0.15);
}

.trial-card .btn { border: 0; cursor: pointer; justify-self: start; }

.trial-card .btn:disabled { opacity: 0.6; cursor: wait; }

.trial-hp { position: absolute; left: -9999px; opacity: 0; }

.trial-note { font-size: 0.8125rem; color: var(--dark-soft); }

.trial-note.trial-error { color: #E8A5A5; }

.trial-label { color: var(--dark-accent); margin: 20px 0 10px; }

#trial-success .trial-label:first-child { margin-top: 0; }

.trial-key-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.trial-key-row code {
  flex: 1;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--dark-accent);
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--dark-hairline);
  border-radius: 10px;
  padding: 12px 14px;
  overflow-x: auto;
  white-space: nowrap;
}

.trial-snippet {
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--dark-hairline);
  border-radius: 10px;
  padding: 16px;
  overflow-x: auto;
  margin-bottom: 20px;
}

.trial-snippet code {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1.7;
  color: var(--dark-ink);
}

.quickstart-link {
  color: var(--evergreen);
  font-weight: 600;
  text-decoration: none;
}

.quickstart-link:hover { text-decoration: underline; }

/* ---------- Reveal animation ---------- */

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero-demo { animation: none; }
}

/* ---------- Responsive ---------- */

@media (max-width: 1000px) {
  .hero-grid { grid-template-columns: 1fr; gap: 64px; }
  .hero-demo { max-width: 560px; }
  .result-chip { left: auto; right: -8px; bottom: -18px; }
}

@media (max-width: 900px) {
  .sol-cards, .arch-grid-cols, .quickstart-grid, .contact-grid, .playground { grid-template-columns: 1fr; }
  .api-cards { grid-template-columns: 1fr 1fr; }
  .thesis-grid, .deploy-grid { grid-template-columns: 1fr; gap: 32px; }
  .pub { grid-template-columns: 1fr; gap: 8px; }
  .pub-meta { flex-direction: row; gap: 16px; }
}

@media (max-width: 700px) {
  .nav-links { display: none; }
  .api-cards { grid-template-columns: 1fr; }
  .hero { padding: 80px 0 72px; }
  .section { padding: 72px 0; }
}