/* CardGPT marketing site — premium light theme with a violet→rose→amber
   signature gradient. This is the visual direction the app will adopt
   later; the app itself is untouched for now. */
:root {
  --ink: #14102b;
  --ink-2: #3b3556;
  --muted: #6b6684;
  --line: rgba(20, 16, 43, 0.08);
  --line-strong: rgba(20, 16, 43, 0.14);
  --bg: #fbfaff;
  --paper: #ffffff;
  --g1: #6d28d9;   /* violet */
  --g2: #db2777;   /* rose */
  --g3: #f59e0b;   /* amber */
  --grad: linear-gradient(135deg, var(--g1) 0%, var(--g2) 55%, var(--g3) 100%);
  --grad-soft: linear-gradient(135deg, rgba(109, 40, 217, 0.12), rgba(219, 39, 119, 0.10) 55%, rgba(245, 158, 11, 0.12));
  --glow: 0 14px 40px -12px rgba(219, 39, 119, 0.45), 0 8px 24px -10px rgba(109, 40, 217, 0.45);
  --shadow: 0 24px 60px -24px rgba(20, 16, 43, 0.25);
  --radius: 20px;
  --max: 1120px;
  --font-body: "Inter", "Noto Sans Devanagari", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-display: "Playfair Display", "Noto Serif Devanagari", Georgia, serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { max-width: 100%; overflow-x: hidden; }
body {
  margin: 0; font-family: var(--font-body); color: var(--ink); background: var(--bg);
  line-height: 1.6; -webkit-font-smoothing: antialiased;
}
/* grid/flex children must be allowed to shrink below their content width */
.hero .grid > *, .strip .row > *, .features > *, .steps > *, .pricing > *, .cta .box > * { min-width: 0; }
a { color: var(--g1); }
img { max-width: 100%; display: block; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* ambient background */
.bg {
  position: fixed; inset: 0; z-index: -1; overflow: hidden; pointer-events: none;
  background: radial-gradient(1200px 600px at 10% -10%, rgba(109, 40, 217, 0.14), transparent 60%),
              radial-gradient(900px 500px at 100% 10%, rgba(219, 39, 119, 0.12), transparent 60%),
              radial-gradient(800px 500px at 50% 110%, rgba(245, 158, 11, 0.12), transparent 60%);
}

/* language toggle: the inactive language is hidden with !important so no
   component rule (e.g. a block-level <b>) can override it; the active
   language keeps whatever display its own styles give it. */
body[data-lang="en"] [data-hi] { display: none !important; }
body[data-lang="hi"] [data-en] { display: none !important; }
body:not([data-lang]) [data-en] { display: none !important; }

/* header */
header.top {
  position: sticky; top: 0; z-index: 20;
  background: rgba(251, 250, 255, 0.78); backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--line);
}
header.top .wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; gap: 16px; }
header.top .right { display: flex; align-items: center; gap: 12px; }
.logo { font-family: var(--font-display); font-weight: 700; font-size: 1.45rem; letter-spacing: -0.01em; color: var(--ink); text-decoration: none; }
.logo b { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
nav.links { display: none; gap: 26px; font-size: 0.95rem; font-weight: 500; }
nav.links a { color: var(--ink-2); text-decoration: none; }
nav.links a:hover { color: var(--g2); }
@media (min-width: 860px) { nav.links { display: flex; } }
@media (max-width: 480px) {
  header.top .wrap { height: 60px; gap: 8px; }
  .logo { font-size: 1.25rem; }
  .lang button { padding: 4px 9px; font-size: 0.78rem; }
  .app-link { padding: 8px 12px; font-size: 0.85rem; }
}
.lang { border: 1px solid var(--line-strong); background: var(--paper); border-radius: 999px; padding: 3px; display: inline-flex; gap: 2px; }
.lang button { border: 0; background: transparent; padding: 5px 12px; border-radius: 999px; font: inherit; font-size: 0.82rem; color: var(--muted); cursor: pointer; }
.lang button[aria-pressed="true"] { background: var(--ink); color: #fff; }

/* buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px; text-decoration: none; font-weight: 600;
  border-radius: 14px; padding: 14px 24px; min-height: 48px; line-height: 1.2; transition: transform .15s ease, box-shadow .15s ease, filter .15s ease;
}
.btn.primary { background: var(--grad); color: #fff; box-shadow: var(--glow); }
.btn.primary:hover { transform: translateY(-1px); filter: saturate(110%); }
.btn.secondary { background: rgba(255, 255, 255, 0.7); color: var(--ink); border: 1px solid var(--line-strong); backdrop-filter: blur(8px); }
.btn.secondary:hover { border-color: rgba(109, 40, 217, 0.35); }
.btn.ghost { color: var(--ink); background: transparent; }
.app-link { padding: 10px 18px; min-height: 0; font-size: 0.92rem; border-radius: 12px; }

/* typography */
h1, h2, h3 { line-height: 1.12; margin: 0 0 14px; letter-spacing: -0.02em; }
h1, h2 { font-family: var(--font-display); font-weight: 700; }
h1 { font-size: clamp(2.3rem, 5.4vw, 4rem); }
h2 { font-size: clamp(1.7rem, 3.6vw, 2.5rem); }
h3 { font-size: 1.1rem; font-weight: 700; }
.grad-text { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lead { font-size: 1.15rem; color: var(--ink-2); max-width: 620px; margin: 0 0 28px; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; color: var(--g1); font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; font-size: 0.74rem; margin-bottom: 14px; }
.eyebrow::before { content: ""; width: 22px; height: 2px; background: var(--grad); border-radius: 2px; }
section { padding: 88px 0; }
.center { text-align: center; }
.center .lead { margin-left: auto; margin-right: auto; }
.center .eyebrow { justify-content: center; }

/* hero */
.hero { padding: 84px 0 64px; }
.hero .grid { display: grid; gap: 40px; align-items: center; }
@media (min-width: 960px) { .hero .grid { grid-template-columns: 1.05fr 0.95fr; } }
.hero .actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero .note { color: var(--muted); font-size: 0.92rem; margin-top: 18px; display: flex; flex-wrap: wrap; gap: 8px 18px; }
.hero .note > span::before { content: "✦"; color: var(--g2); margin-right: 6px; font-size: 0.8em; }

/* rotating headline */
.rotator { display: block; position: relative; min-height: 1.15em; }
.rotator .phrase {
  position: absolute; left: 0; right: 0; top: 0; opacity: 0; transform: translateY(12px);
  transition: opacity .55s ease, transform .55s ease; will-change: opacity, transform;
}
.rotator .phrase.active { opacity: 1; transform: translateY(0); position: relative; }
.rotator .phrase.leaving { opacity: 0; transform: translateY(-12px); }

/* card-set visual */
.stage { position: relative; min-height: 460px; }
.card-main {
  position: relative; z-index: 2; width: min(78%, 330px); margin: 0 auto; aspect-ratio: 5 / 7;
  background: linear-gradient(160deg, #fff 0%, #fdf7ff 60%, #fff5f8 100%);
  border-radius: 18px; box-shadow: var(--shadow); border: 1px solid var(--line);
  padding: 22px; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center;
  overflow: hidden; transform: rotate(-3deg);
}
.card-main::before {
  content: ""; position: absolute; inset: 12px; border-radius: 12px; border: 1px solid transparent;
  background: var(--grad) border-box; -webkit-mask: linear-gradient(#000 0 0) padding-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude; opacity: 0.55;
}
.card-main .om { font-family: var(--font-display); font-size: 0.85rem; color: var(--g2); letter-spacing: 0.2em; }
.card-main .names { font-family: var(--font-display); font-weight: 700; font-size: clamp(1.4rem, 2.6vw, 1.9rem); margin: 10px 0 2px; }
.card-main .names small { display: block; font-size: 0.8rem; font-weight: 500; color: var(--muted); letter-spacing: 0.15em; margin: 4px 0; }
.card-main .meta { font-size: 0.82rem; color: var(--ink-2); line-height: 1.7; margin-top: 8px; }
.card-main .field { display: inline-block; padding: 0 6px; border-radius: 6px; background: var(--grad-soft); }
.card-back {
  position: absolute; z-index: 1; width: min(60%, 250px); aspect-ratio: 5 / 7; border-radius: 16px;
  background: #fff; border: 1px solid var(--line); box-shadow: 0 16px 40px -20px rgba(20, 16, 43, 0.35);
}
.card-back.a { left: 4%; top: 12%; transform: rotate(-12deg); }
.card-back.b { right: 4%; top: 18%; transform: rotate(9deg); }
.card-back::after { content: ""; position: absolute; inset: 12px; border-radius: 10px; border: 1px dashed rgba(109, 40, 217, 0.25); }
.chip {
  position: absolute; z-index: 3; background: rgba(255, 255, 255, 0.9); backdrop-filter: blur(8px); border: 1px solid var(--line);
  border-radius: 999px; padding: 8px 14px; font-size: 0.82rem; font-weight: 600; box-shadow: 0 10px 30px -14px rgba(20, 16, 43, 0.35);
  display: inline-flex; align-items: center; gap: 8px; white-space: nowrap;
}
.chip i { width: 8px; height: 8px; border-radius: 50%; background: var(--grad); display: inline-block; }
.chip.c1 { left: 0; bottom: 14%; }
.chip.c2 { right: 0; bottom: 6%; }
.chip.c3 { right: 6%; top: 4%; }
@media (max-width: 600px) {
  .chip { font-size: 0.76rem; padding: 7px 12px; }
  .chip.c3 { display: none; }
  .chip.c1 { left: 0; bottom: 20%; }
  .chip.c2 { right: 0; bottom: 4%; }
  .stage { min-height: 420px; }
  .card-main { width: 72%; }
  .card-back { width: 56%; }
}

/* strip */
.strip { padding: 0; margin-top: -8px; }
.strip .row { display: grid; gap: 14px; }
@media (min-width: 760px) { .strip .row { grid-template-columns: repeat(4, 1fr); } }
.strip .item { background: rgba(255,255,255,0.7); border: 1px solid var(--line); border-radius: 16px; padding: 18px 20px; }
.strip .item b { display: block; font-family: var(--font-display); font-size: 1.35rem; }
.strip .item span { display: block; color: var(--muted); font-size: 0.88rem; margin-top: 2px; }

/* features */
.features { display: grid; gap: 18px; }
@media (min-width: 760px) { .features { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .features { grid-template-columns: repeat(3, 1fr); } }
.feature {
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px;
  position: relative; overflow: hidden; transition: transform .2s ease, box-shadow .2s ease;
}
.feature::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 4px; background: var(--grad); opacity: 0; transition: opacity .2s; }
.feature:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.feature:hover::before { opacity: 1; }
.feature .ic {
  width: 46px; height: 46px; border-radius: 14px; background: var(--grad-soft); display: grid; place-items: center;
  font-size: 1.25rem; margin-bottom: 16px;
}
.feature p { margin: 6px 0 0; color: var(--muted); }

/* steps */
.steps { display: grid; gap: 18px; counter-reset: step; }
@media (min-width: 760px) { .steps { grid-template-columns: repeat(3, 1fr); } }
.step { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.step .n {
  width: 40px; height: 40px; border-radius: 12px; background: var(--grad); color: #fff; font-weight: 800; display: grid; place-items: center;
  margin-bottom: 16px; box-shadow: var(--glow);
}
.step p { margin: 0; color: var(--muted); }

/* pricing */
.pricing { display: grid; gap: 20px; max-width: 880px; margin: 0 auto; }
@media (min-width: 760px) { .pricing { grid-template-columns: 1fr 1fr; } }
.plan { background: var(--paper); border: 1px solid var(--line); border-radius: 24px; padding: 30px; position: relative; }
.plan.best { border: 1px solid transparent; background: linear-gradient(var(--paper), var(--paper)) padding-box, var(--grad) border-box; box-shadow: var(--shadow); }
.plan .tag { position: absolute; top: -13px; right: 22px; background: var(--grad); color: #fff; font-size: 0.74rem; font-weight: 700; padding: 5px 12px; border-radius: 999px; letter-spacing: 0.04em; }
.plan .price { font-family: var(--font-display); font-size: 2.6rem; font-weight: 700; letter-spacing: -0.02em; margin: 8px 0 2px; }
.plan .price small { font-family: var(--font-body); font-size: 0.95rem; font-weight: 500; color: var(--muted); }
.plan .sub { color: var(--muted); font-size: 0.92rem; min-height: 1.4em; }
.plan ul { list-style: none; padding: 0; margin: 18px 0 22px; color: var(--ink-2); }
.plan li { margin: 8px 0; padding-left: 26px; position: relative; }
.plan li::before { content: "✓"; position: absolute; left: 0; top: 0; font-weight: 800; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.fineprint { text-align: center; color: var(--muted); font-size: 0.85rem; margin-top: 18px; }

/* faq */
.faq details { background: var(--paper); border: 1px solid var(--line); border-radius: 14px; padding: 16px 20px; margin: 10px 0; }
.faq summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.faq summary::after { content: "+"; color: var(--g2); font-weight: 700; }
.faq details[open] summary::after { content: "–"; }
.faq p { margin: 10px 0 0; color: var(--muted); }

/* contact / cta */
.cta .box {
  border-radius: 28px; padding: 44px 32px; color: #fff; background: var(--grad); box-shadow: var(--glow);
  display: grid; gap: 22px; align-items: center; position: relative; overflow: hidden;
}
@media (min-width: 760px) { .cta .box { grid-template-columns: 1.2fr 0.8fr; padding: 52px 48px; } }
.cta .box::after { content: ""; position: absolute; right: -80px; top: -80px; width: 260px; height: 260px; border-radius: 50%; background: rgba(255,255,255,0.14); }
.cta h2 { color: #fff; }
.cta p { margin: 6px 0; color: rgba(255,255,255,0.86); }
.cta .btn.light { background: #fff; color: var(--ink); box-shadow: 0 12px 30px -14px rgba(0,0,0,0.4); }
.cta .mail { font-weight: 600; color: #fff; text-decoration: underline; text-underline-offset: 3px; }

footer { padding: 40px 0 56px; color: var(--muted); font-size: 0.9rem; border-top: 1px solid var(--line); }
footer .wrap { display: grid; gap: 14px; }
footer nav { display: flex; flex-wrap: wrap; gap: 18px; }
footer nav a { color: var(--muted); text-decoration: none; }
footer nav a:hover { color: var(--g1); }
.legal-note { font-size: 0.84rem; }

/* legal pages */
.doc { max-width: 760px; margin: 0 auto; padding: 56px 24px 96px; }
.doc h1 { font-size: 2.2rem; }
.doc h2 { font-size: 1.25rem; margin-top: 34px; font-family: var(--font-body); font-weight: 700; }
.doc p, .doc li { color: var(--ink-2); }
.doc .updated { color: var(--muted); font-size: 0.9rem; }
.placeholder { background: #fff3cd; border: 1px dashed #d9a400; padding: 2px 6px; border-radius: 4px; }

@media (prefers-reduced-motion: reduce) {
  .rotator .phrase { transition: none; }
  .btn, .feature { transition: none; }
}