:root, [data-theme="dark"] {
  --bg:#0e0e10; --surface:#141417; --surface-2:#1a1a1e; --surface-3:#212127;
  --border:#2a2a31; --border-2:#34343c; --text:#ECECEE; --text-2:#A0A4AB; --text-3:#6E727A;
  --primary:#4285F4; --green:#34A853; --amber:#F9AB00; --red:#EA4335; --purple:#A78BFA;
  --radius:12px; --radius-sm:8px; --glow:rgba(66,133,244,.16); --shadow:rgba(0,0,0,.4);
}
[data-theme="light"] {
  --bg:#f4f6f8; --surface:#ffffff; --surface-2:#f0f2f5; --surface-3:#e6e9ee;
  --border:#e0e4ea; --border-2:#d2d7df; --text:#1a1c1f; --text-2:#51565e; --text-3:#878d97;
  --glow:rgba(66,133,244,.10); --shadow:rgba(20,30,50,.12);
}
* { box-sizing:border-box; margin:0; padding:0; }
html { scroll-behavior:smooth; }
body {
  background:var(--bg); color:var(--text); font:16px/1.6 Inter, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing:antialiased; transition:background .2s, color .2s;
}
a { color:inherit; text-decoration:none; }
img { max-width:100%; display:block; }
.container { max-width:1120px; margin:0 auto; padding:0 24px; }
.btn { display:inline-flex; align-items:center; gap:8px; padding:12px 20px; border-radius:var(--radius);
  font-weight:600; font-size:15px; border:1px solid transparent; cursor:pointer; transition:transform .08s, background .2s, border-color .2s; }
.btn:active { transform:translateY(1px); }
.btn-primary { background:var(--primary); color:#fff; }
.btn-primary:hover { filter:brightness(1.06); }
.btn-secondary { background:transparent; color:var(--text); border-color:var(--border-2); }
.btn-secondary:hover { background:var(--surface-2); }
/* Sticky nav */
.nav { position:sticky; top:0; z-index:50; background:color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter:blur(10px); border-bottom:1px solid var(--border); }
.nav-inner { display:flex; align-items:center; gap:20px; height:64px; }
.nav-logo { display:flex; align-items:center; gap:10px; font-weight:700; color:var(--text); }
.nav-logo img, .nav-logo svg { height:26px; width:auto; display:block; }
.nav-wordmark { gap:8px; font-size:17px; letter-spacing:-.02em; }
.nav-wordmark img { width:20px; height:20px; border-radius:5px; }
.nav-wordmark strong { color:var(--primary); }
.nav-links { display:flex; gap:22px; margin-left:16px; }
.nav-links a { color:var(--text-2); font-size:14.5px; }
.nav-links a:hover { color:var(--text); }
.nav-right { margin-left:auto; display:flex; align-items:center; gap:12px; }
.icon-btn { background:transparent; border:1px solid var(--border); border-radius:var(--radius-sm);
  width:38px; height:38px; display:inline-flex; align-items:center; justify-content:center; cursor:pointer; color:var(--text-2); }
.icon-btn:hover { color:var(--text); background:var(--surface-2); }
/* Footer */
.footer { border-top:1px solid var(--border); margin-top:80px; padding:40px 0; color:var(--text-3); font-size:14px; }
.footer a { color:var(--text-2); } .footer a:hover { color:var(--text); }
.footer-row { display:flex; flex-wrap:wrap; gap:18px; align-items:center; justify-content:space-between; }
@media (prefers-reduced-motion: reduce) { * { transition:none !important; scroll-behavior:auto; } }

/* ============================================================
   TASK 2 — content sections
   Signature: the transcript spine. Monospace timestamp markers
   (.ts) act as the page's structural eyebrow/numbering — echoing
   the app's timestamped transcript rail. One accent (--primary);
   Google-material tokens tint the feature icons like app swatches.
   ============================================================ */

/* Monospace "transcript" voice — timestamps, tags, captions, data */
.ts {
  font-family: ui-monospace, "SFMono-Regular", "SF Mono", Menlo, Consolas, monospace;
  font-size: 12px; letter-spacing: .04em; font-weight: 600;
  color: var(--primary); font-variant-numeric: tabular-nums;
}

/* Shared section rhythm + heads */
.section { padding: 88px 0; }
.section-head { max-width: 720px; margin-bottom: 44px; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  text-transform: uppercase; letter-spacing: .12em; font-size: 12px; font-weight: 700;
  color: var(--text-3); margin-bottom: 18px;
}
.section-h2 {
  font-size: clamp(26px, 3vw, 36px); line-height: 1.12; font-weight: 800;
  letter-spacing: -.02em; color: var(--text);
}
.section-lead { margin-top: 16px; font-size: 17px; color: var(--text-2); max-width: 60ch; }

/* Reusable screenshot frame */
.shot-frame {
  border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden;
  background: var(--surface); box-shadow: 0 24px 60px -24px var(--shadow);
}
.shot-frame img { width: 100%; height: auto; }

/* ------------------------------- HERO ------------------------------- */
.hero { position: relative; overflow: hidden; padding: 92px 0 40px; }
.hero-glow {
  position: absolute; top: -280px; left: 50%; transform: translateX(-50%);
  width: 1100px; height: 700px; pointer-events: none; z-index: 0;
  background: radial-gradient(50% 50% at 50% 50%, var(--glow) 0%, transparent 70%);
}
.hero-inner { position: relative; z-index: 1; }
.hero-copy { max-width: 780px; }
.hero-h1 {
  font-size: clamp(34px, 5.4vw, 60px); line-height: 1.04; font-weight: 800;
  letter-spacing: -.03em; color: var(--text);
}
.hero-sub { margin-top: 22px; font-size: 18px; line-height: 1.6; color: var(--text-2); max-width: 62ch; }
.hero-cta { margin-top: 30px; display: flex; flex-wrap: wrap; gap: 12px; }
.hero-cta .btn { padding: 13px 24px; font-size: 15.5px; }
.hero-fine {
  margin-top: 18px; display: inline-flex; align-items: center; gap: 10px;
  font-size: 14px; color: var(--text-3);
}
.hero-fine .ts { color: var(--text-2); }

.hero-shot { margin-top: 56px; }
.hero-shot .shot-frame { box-shadow: 0 40px 90px -30px var(--shadow); }
.shot-trust {
  margin-top: 18px; display: flex; align-items: center; justify-content: center; gap: 9px;
  font-size: 13.5px; color: var(--text-3);
}
.shot-trust .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 4px color-mix(in srgb, var(--green) 22%, transparent); }

/* ---------------------------- VALUE STRIP --------------------------- */
.valuestrip { border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); background: var(--surface); }
.value-row { display: grid; grid-template-columns: repeat(3, 1fr); }
.value-item { padding: 36px 0; padding-right: 40px; }
.value-item + .value-item { border-left: 1px solid var(--border); padding-left: 40px; }
.value-k { font-size: 16px; font-weight: 700; color: var(--text); margin-bottom: 8px; }
.value-v { font-size: 14.5px; color: var(--text-2); line-height: 1.55; }

/* ----------------------------- FEATURES ----------------------------- */
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.feature-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px 22px 26px; transition: border-color .18s, transform .18s, box-shadow .18s;
}
.feature-card:hover { border-color: var(--border-2); transform: translateY(-3px); box-shadow: 0 18px 40px -26px var(--shadow); }
.feat-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 42px; height: 42px; border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  color: var(--accent); border: 1px solid color-mix(in srgb, var(--accent) 22%, transparent);
  margin-bottom: 18px; transition: background .18s;
}
.feat-icon svg { width: 22px; height: 22px; }
.feature-card:hover .feat-icon { background: color-mix(in srgb, var(--accent) 20%, transparent); }
.feat-title { font-size: 15.5px; font-weight: 700; color: var(--text); margin-bottom: 7px; }
.feat-body { font-size: 14px; line-height: 1.55; color: var(--text-2); }

/* ---------------------------- HOW IT WORKS -------------------------- */
.how-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; list-style: none; counter-reset: none; }
.how-step { position: relative; padding: 30px 34px 30px 0; }
.how-step + .how-step { border-left: 1px solid var(--border); padding-left: 34px; }
.step-ts {
  display: inline-block; font-size: 13px; padding: 4px 9px; border-radius: 6px;
  background: color-mix(in srgb, var(--primary) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--primary) 26%, transparent); margin-bottom: 18px;
}
.step-title { font-size: 17px; font-weight: 700; color: var(--text); line-height: 1.25; margin-bottom: 9px; }
.step-body { font-size: 14.5px; line-height: 1.55; color: var(--text-2); }

/* ----------------------------- SHOWCASE ----------------------------- */
.showcase-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.showcase-item { min-width: 0; }
.shot-cap { margin-top: 14px; display: flex; align-items: baseline; gap: 10px; font-size: 14px; color: var(--text-2); }
.shot-cap .ts {
  text-transform: uppercase; letter-spacing: .08em; color: var(--text-3);
  padding: 2px 7px; border: 1px solid var(--border); border-radius: 5px; font-size: 11px;
}

/* ------------------------------ AI TIERS ---------------------------- */
.tier-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; align-items: stretch; }
.tier-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px 26px; display: flex; flex-direction: column;
}
.tier-featured { border-color: color-mix(in srgb, var(--primary) 55%, var(--border)); background: var(--surface-2); box-shadow: 0 0 0 1px color-mix(in srgb, var(--primary) 22%, transparent), 0 24px 50px -30px var(--shadow); }
.tier-tag {
  font-family: ui-monospace, "SFMono-Regular", "SF Mono", Menlo, Consolas, monospace;
  font-size: 12px; letter-spacing: .04em; font-weight: 700; color: var(--primary);
  text-transform: uppercase; margin-bottom: 14px;
}
.tier-name { font-size: 18px; font-weight: 700; color: var(--text); line-height: 1.2; margin-bottom: 12px; }
.tier-body { font-size: 14.5px; line-height: 1.6; color: var(--text-2); }

/* ------------------------------ PRICING ----------------------------- */
.pricing .price-card {
  max-width: 460px; margin: 0 auto; text-align: center;
  background: var(--surface); border: 1px solid var(--border-2); border-radius: var(--radius);
  padding: 40px 36px; box-shadow: 0 30px 70px -34px var(--shadow); position: relative; overflow: hidden;
}
.price-card::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 3px;
  background: linear-gradient(90deg, var(--primary), color-mix(in srgb, var(--primary) 30%, transparent));
}
.price-kicker { font-size: 13px; text-transform: uppercase; letter-spacing: .1em; color: var(--text-3); margin-bottom: 8px; }
.price-amount { display: flex; align-items: baseline; justify-content: center; gap: 10px; }
.price-num { font-size: 60px; font-weight: 800; letter-spacing: -.03em; color: var(--text); line-height: 1; }
.price-was { font-size: 26px; font-weight: 600; color: var(--text-3); text-decoration: line-through; align-self: center; }
.price-founding { margin-top: 10px; font-size: 13px; font-weight: 600; color: var(--primary); text-transform: uppercase; letter-spacing: .06em; }
.price-per {
  font-family: ui-monospace, "SFMono-Regular", "SF Mono", Menlo, Consolas, monospace;
  font-size: 13px; color: var(--text-3); text-transform: uppercase; letter-spacing: .06em;
}
.price-list { list-style: none; margin: 28px 0; display: grid; gap: 12px; text-align: left; }
.price-list li { position: relative; padding-left: 30px; font-size: 15px; color: var(--text); }
.price-list li::before {
  content: ""; position: absolute; left: 4px; top: 6px; width: 6px; height: 10px;
  border: solid var(--green); border-width: 0 2px 2px 0; transform: rotate(45deg);
}
.price-cta { width: 100%; justify-content: center; padding: 14px 24px; font-size: 16px; }
.price-note { margin-top: 16px; font-size: 13px; color: var(--text-3); }

/* -------------------------------- FAQ ------------------------------- */
.faq-inner { display: grid; grid-template-columns: 300px 1fr; gap: 48px; align-items: start; }
.faq-head { margin-bottom: 0; position: sticky; top: 96px; }
.faq-list { display: grid; gap: 12px; }
.faq-item {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 4px 22px; transition: border-color .18s;
}
.faq-item[open] { border-color: var(--border-2); }
.faq-item summary {
  list-style: none; cursor: pointer; padding: 18px 0; font-size: 16px; font-weight: 600; color: var(--text);
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+"; font-size: 22px; font-weight: 400; color: var(--text-3); line-height: 1;
  transition: transform .18s, color .18s;
}
.faq-item[open] summary::after { transform: rotate(45deg); color: var(--primary); }
.faq-item > p { padding: 0 0 20px; font-size: 14.5px; line-height: 1.65; color: var(--text-2); max-width: 62ch; }

/* Visible keyboard focus (quality floor) */
a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 2px solid var(--primary); outline-offset: 3px; border-radius: 4px;
}

/* ============================================================
   DESKTOP POLISH — hover / focus / rhythm tweaks (Task 3)
   ============================================================ */

/* Nav links: underline-grow on hover */
.nav-links a { position: relative; }
.nav-links a::after {
  content: ""; position: absolute; bottom: -2px; left: 0; right: 0; height: 2px;
  background: var(--primary); transform: scaleX(0); transform-origin: left;
  transition: transform .18s ease;
}
.nav-links a:hover::after { transform: scaleX(1); }

/* Showcase + tier card hover: lift + border brighten */
.showcase-item .shot-frame { transition: box-shadow .22s, transform .22s; }
.showcase-item:hover .shot-frame {
  transform: translateY(-4px);
  box-shadow: 0 32px 70px -28px var(--shadow);
}
.tier-card { transition: border-color .18s, box-shadow .18s, transform .18s; }
.tier-card:not(.tier-featured):hover {
  border-color: var(--border-2);
  transform: translateY(-2px);
  box-shadow: 0 16px 40px -24px var(--shadow);
}

/* FAQ open state: subtle left accent bar */
.faq-item[open] { border-left: 3px solid var(--primary); padding-left: 19px; }

/* Consistent inter-section separation: add a faint top border on alternating light sections */
.valuestrip + .features { border-top: 1px solid var(--border); }

/* Hero glow: slightly stronger on dark, so the signature element reads */
[data-theme="dark"] .hero-glow { opacity: 1.0; }
[data-theme="light"] .hero-glow { opacity: 0.7; }

/* Mobile menu button: hidden by default on desktop */
.nav-menu-btn { display: none; }

/* ============================================================
   RESPONSIVE — 960px: tablet (already existing, kept + expanded)
   ============================================================ */
@media (max-width: 960px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .showcase-grid, .tier-grid { grid-template-columns: 1fr; }
  .value-row, .how-steps { grid-template-columns: 1fr; }
  .value-item + .value-item, .how-step + .how-step { border-left: 0; padding-left: 0; }
  .value-item { padding-right: 0; }
  .faq-inner { grid-template-columns: 1fr; gap: 28px; }
  .faq-head { position: static; }
}

/* ============================================================
   RESPONSIVE — 768px: mobile breakpoint (Task 3 main pass)
   ============================================================ */
@media (max-width: 768px) {
  /* --- Nav --- */
  /* Hide text links, show hamburger */
  .nav-links {
    display: none;
    position: absolute; top: 64px; left: 0; right: 0; z-index: 40;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 12px 24px 20px;
    flex-direction: column; gap: 0;
  }
  .nav-links.nav-links-open { display: flex; }
  .nav-links a {
    display: block; padding: 13px 0; font-size: 16px;
    border-bottom: 1px solid var(--border);
    color: var(--text);
  }
  .nav-links a:last-child { border-bottom: 0; }
  .nav-links a::after { display: none; } /* no underline animation in stack */
  .nav-menu-btn { display: inline-flex; }
  /* Keep the Buy CTA visible in nav; theme toggle stays too */
  .nav-buy { font-size: 13px; padding: 9px 14px; }

  /* --- Hero --- */
  .hero { padding: 60px 0 32px; }
  .hero-h1 { font-size: clamp(28px, 8vw, 42px); }
  .hero-sub { font-size: 16px; }
  .hero-shot { margin-top: 36px; }
  .hero-cta .btn { width: 100%; justify-content: center; }
  .hero-cta { flex-direction: column; gap: 10px; }

  /* --- Sections --- */
  .section { padding: 60px 0; }
  .section-head { margin-bottom: 32px; }
  .section-h2 { font-size: clamp(22px, 6vw, 30px); }

  /* --- Feature grid: single column --- */
  .feature-grid { grid-template-columns: 1fr; }
  .feature-card { padding: 20px 18px 22px; }

  /* --- Value strip: stack with horizontal rules --- */
  .value-row { grid-template-columns: 1fr; }
  .value-item { padding: 24px 0; padding-right: 0; }
  .value-item + .value-item { border-left: 0; border-top: 1px solid var(--border); padding-left: 0; }

  /* --- How steps: stack --- */
  .how-steps { grid-template-columns: 1fr; gap: 0; }
  .how-step { padding: 24px 0; }
  .how-step + .how-step { border-left: 0; border-top: 1px solid var(--border); padding-left: 0; }

  /* --- Showcase: single column --- */
  .showcase-grid { grid-template-columns: 1fr; gap: 24px; }

  /* --- Tier grid: single column --- */
  .tier-grid { grid-template-columns: 1fr; }

  /* --- Pricing card: comfortable on small screens --- */
  .pricing .price-card { padding: 32px 24px; margin: 0 4px; }
  .price-num { font-size: 52px; }
  .price-cta { padding: 14px 20px; }

  /* --- FAQ: single column already at 960, make items more tappable --- */
  .faq-item summary { padding: 16px 0; font-size: 15px; }
  .faq-item { padding: 2px 16px; }
  .faq-item[open] { padding-left: 13px; }

  /* --- Footer --- */
  .footer { padding: 28px 0; }
  .footer-row { flex-direction: column; align-items: flex-start; gap: 12px; text-align: left; }

  /* --- Tap targets: ensure minimum 44px --- */
  .btn { min-height: 44px; }
  .icon-btn { width: 44px; height: 44px; }
}

/* ============================================================
   RESPONSIVE — 390px: narrow phone safety pass
   ============================================================ */
@media (max-width: 430px) {
  .container { padding: 0 16px; }
  .hero { padding: 48px 0 28px; }
  .hero-h1 { font-size: 26px; letter-spacing: -.02em; }
  .hero-sub { font-size: 15px; }
  .nav-inner { gap: 12px; }
  .nav-logo img, .nav-logo svg { height: 22px; }
  /* Prevent any grid from overflowing */
  .feature-grid,
  .showcase-grid,
  .tier-grid,
  .value-row,
  .how-steps { grid-template-columns: 1fr !important; }
  /* Shot frames scale cleanly */
  .shot-frame img { height: auto; }
  /* Price card */
  .pricing .price-card { padding: 28px 18px; }
  .price-num { font-size: 48px; }
}

/* Download buttons for platforms without a build yet ("coming soon") */
.is-disabled {
  opacity: .5;
  cursor: not-allowed;
  pointer-events: none;
}
.is-unavailable { opacity: .68; }

/* Standalone, crawlable pages reuse the product's quiet desktop aesthetic. */
.subpage-main { min-height: calc(100vh - 142px); padding: 92px 0 72px; }
.subpage-hero { max-width: 760px; margin-bottom: 44px; }
.subpage-hero .section-h2 { max-width: 18ch; }
.subpage-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.subpage-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px; box-shadow: 0 18px 48px -36px var(--shadow);
}
.subpage-card h2, .subpage-card h3 { color: var(--text); margin-bottom: 10px; }
.subpage-card p, .subpage-card li { color: var(--text-2); font-size: 15px; line-height: 1.7; }
.subpage-card ul { padding-left: 20px; display: grid; gap: 8px; }
.subpage-card-wide { grid-column: 1 / -1; }
.subpage-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.legal-copy { max-width: 780px; display: grid; gap: 26px; }
.legal-copy section { border-top: 1px solid var(--border); padding-top: 24px; }
.legal-copy h2 { margin-bottom: 10px; font-size: 20px; color: var(--text); }
.legal-copy p, .legal-copy li { color: var(--text-2); line-height: 1.75; font-size: 15px; }
.legal-copy ul { padding-left: 22px; margin-top: 10px; }
.status-pill {
  display: inline-flex; align-items: center; gap: 8px; padding: 7px 11px;
  border: 1px solid var(--border); border-radius: 999px; color: var(--text-2); font-size: 13px;
}
.status-pill::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--green); }

@media (max-width: 768px) {
  .subpage-main { padding: 64px 0 52px; }
  .subpage-grid { grid-template-columns: 1fr; }
  .subpage-card-wide { grid-column: auto; }
}