/* ==========================================================================
   CardScan — landing styles
   White primary · #ffd300 accent · light + dark mode
   ========================================================================== */

:root {
  color-scheme: light;

  /* Brand */
  --accent: #ffd300;
  --accent-strong: #f0c400;
  --accent-ink: #1a1500;         /* text on yellow */
  --accent-tint: #fff8d6;        /* pale yellow wash */
  --accent-glow: rgba(255, 211, 0, 0.35);

  /* Surfaces (light) */
  --bg: #ffffff;
  --bg-soft: #f7f7f4;
  --bg-inset: #f1f1ee;
  --card: #ffffff;
  --card-alt: #fbfbf9;

  /* Text (light) — high contrast for readability */
  --text: #17181c;
  --text-soft: #43464d;
  --text-muted: #6b7078;

  /* Lines */
  --border: #e7e7e3;
  --border-strong: #d9d9d3;

  --shadow-sm: 0 1px 2px rgba(16, 18, 22, 0.04), 0 2px 8px rgba(16, 18, 22, 0.05);
  --shadow-md: 0 8px 24px rgba(16, 18, 22, 0.08);
  --shadow-lg: 0 24px 60px rgba(16, 18, 22, 0.14);

  --font-head: "Sora", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;

  --radius-sm: 12px;
  --radius: 18px;
  --radius-lg: 26px;

  --maxw: 1160px;
  --nav-h: 68px;
}

html[data-theme="dark"] {
  color-scheme: dark;

  --accent: #ffd300;
  --accent-strong: #ffdd33;
  --accent-ink: #1a1500;
  --accent-tint: rgba(255, 211, 0, 0.12);
  --accent-glow: rgba(255, 211, 0, 0.22);

  --bg: #0d0e11;
  --bg-soft: #131418;
  --bg-inset: #17181d;
  --card: #16171b;
  --card-alt: #1b1c21;

  --text: #f3f4f6;
  --text-soft: #c4c8cf;
  --text-muted: #969ba4;

  --border: #26282e;
  --border-strong: #33353c;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 30px 70px rgba(0, 0, 0, 0.6);
}

/* ---------- base ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: background-color 0.3s ease, color 0.3s ease;
}

img { max-width: 100%; display: block; height: auto; }
a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 {
  font-family: var(--font-head);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin: 0;
  color: var(--text);
}

p { margin: 0; }

.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: 22px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.eyebrow::before {
  content: "";
  width: 20px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

.section { padding: clamp(64px, 9vw, 112px) 0; }
.section-soft { background: var(--bg-soft); }

.section-head { max-width: 640px; margin-bottom: 48px; }
.section-head.center { margin-inline: auto; text-align: center; }
.section-head.center .eyebrow { justify-content: center; }
.section-head h2 {
  font-size: clamp(1.8rem, 3.6vw, 2.7rem);
  margin: 14px 0 0;
}
.section-head p {
  margin-top: 16px;
  font-size: 1.1rem;
  color: var(--text-soft);
}

/* ---------- buttons ---------- */
.btn {
  --pad-y: 13px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: var(--pad-y) 22px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-family: var(--font-body);
  font-size: 0.98rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.15s ease, background-color 0.18s ease,
    border-color 0.18s ease, color 0.18s ease, box-shadow 0.18s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
  box-shadow: 0 6px 18px var(--accent-glow);
}
.btn-primary:hover { background: var(--accent-strong); box-shadow: 0 10px 26px var(--accent-glow); }

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}
.btn-ghost:hover { border-color: var(--text-muted); background: var(--bg-inset); }

.btn-lg { --pad-y: 16px; padding-inline: 30px; font-size: 1.05rem; }

/* ---------- nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--border);
}
.nav .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
}
.brand img { width: 34px; height: 34px; border-radius: 9px; box-shadow: var(--shadow-sm); }

.nav-menu {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-menu a.link {
  padding: 8px 14px;
  border-radius: 10px;
  font-size: 0.96rem;
  font-weight: 500;
  color: var(--text-soft);
}
.nav-menu a.link:hover { color: var(--text); background: var(--bg-inset); }

.nav-actions { display: flex; align-items: center; gap: 10px; }

.icon-btn {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 11px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  cursor: pointer;
  transition: border-color 0.18s ease, background-color 0.18s ease;
}
.icon-btn:hover { border-color: var(--border-strong); background: var(--bg-inset); }
.icon-btn svg { width: 19px; height: 19px; }
.icon-btn .i-sun { display: none; }
.icon-btn .i-moon { display: block; }
html[data-theme="dark"] .icon-btn .i-sun { display: block; }
html[data-theme="dark"] .icon-btn .i-moon { display: none; }

/* ---------- hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(48px, 7vw, 88px) 0 clamp(48px, 7vw, 80px);
  text-align: center;
}
.hero::before {
  content: "";
  position: absolute;
  top: -220px;
  left: 50%;
  transform: translateX(-50%);
  width: 760px;
  height: 620px;
  background: radial-gradient(circle, var(--accent-glow), transparent 66%);
  pointer-events: none;
  z-index: 0;
}
.hero .wrap {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px 6px 8px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--card);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-soft);
  box-shadow: var(--shadow-sm);
}
.hero-badge b {
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 700;
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  padding: 3px 9px;
  border-radius: 999px;
}
.hero-copy {
  max-width: 800px;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.hero h1 {
  font-size: clamp(2.4rem, 5.4vw, 4rem);
  margin: 22px 0 0;
  letter-spacing: -0.035em;
  max-width: 16ch;
}
.hero h1 .hl {
  position: relative;
  white-space: nowrap;
  color: var(--text);
}
.hero h1 .hl::after {
  content: "";
  position: absolute;
  left: -2px;
  right: -2px;
  bottom: 0.08em;
  height: 0.34em;
  background: var(--accent);
  z-index: -1;
  border-radius: 3px;
}
.hero-sub {
  margin-top: 20px;
  font-size: 1.14rem;
  line-height: 1.6;
  color: var(--text-soft);
  max-width: 54ch;
}
.hero-cta {
  margin-top: 30px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}
.store-badges {
  margin-top: 26px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  justify-content: center;
}
.store-badges img { height: 46px; width: auto; }
.hero-note {
  margin-top: 18px;
  font-size: 0.9rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.hero-note svg { width: 16px; height: 16px; color: var(--accent-strong); }

.hero-media {
  position: relative;
  display: flex;
  justify-content: center;
  width: 100%;
  margin-top: clamp(40px, 6vw, 64px);
}
.hero-media::before {
  content: "";
  position: absolute;
  inset: auto 0 -6% 0;
  height: 62%;
  background: radial-gradient(ellipse at center, var(--accent-glow), transparent 70%);
  filter: blur(6px);
  z-index: 0;
}
.hero-media img {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 720px;
  filter: drop-shadow(0 30px 45px rgba(0, 0, 0, 0.18));
}

/* ---------- features ---------- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.feature {
  padding: 30px 26px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}
.feature:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
}
.feature .chip {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: var(--accent-tint);
  color: var(--accent-ink);
  margin-bottom: 18px;
}
html[data-theme="dark"] .feature .chip { color: var(--accent); }
.feature .chip svg { width: 25px; height: 25px; }
.feature h3 { font-size: 1.22rem; margin-bottom: 8px; }
.feature p { color: var(--text-soft); font-size: 1rem; }

/* ---------- how it works ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  counter-reset: step;
}
.step {
  position: relative;
  padding: 30px 26px;
  border-radius: var(--radius);
  background: var(--card-alt);
  border: 1px solid var(--border);
}
.step::before {
  counter-increment: step;
  content: counter(step);
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-ink);
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.15rem;
  margin-bottom: 18px;
}
.step h3 { font-size: 1.18rem; margin-bottom: 8px; }
.step p { color: var(--text-soft); }

/* ---------- showcase (screenshots) ---------- */
.showcase { background: var(--bg-soft); overflow: hidden; }
.shots {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  padding: 8px 22px 26px;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}
.shots::-webkit-scrollbar { height: 8px; }
.shots::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 999px; }
.shots img {
  flex: 0 0 auto;
  width: 230px;
  border-radius: 22px;
  scroll-snap-align: center;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
}

/* ---------- privacy split ---------- */
.split {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(28px, 5vw, 64px);
  align-items: center;
}
.privacy-panel {
  position: relative;
  padding: clamp(34px, 4vw, 52px);
  border-radius: var(--radius-lg);
  background: linear-gradient(140deg, var(--accent), var(--accent-strong));
  color: var(--accent-ink);
  overflow: hidden;
}
.privacy-panel .big {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(3.4rem, 8vw, 5.4rem);
  line-height: 1;
  letter-spacing: -0.04em;
}
.privacy-panel .cap {
  margin-top: 12px;
  font-size: 1.15rem;
  font-weight: 600;
  max-width: 22ch;
}
.privacy-panel .ring {
  position: absolute;
  right: -60px;
  top: -60px;
  width: 220px;
  height: 220px;
  border: 22px solid rgba(0, 0, 0, 0.08);
  border-radius: 999px;
}
.check-list { list-style: none; padding: 0; margin: 22px 0 0; display: grid; gap: 14px; }
.check-list li { display: flex; gap: 12px; align-items: flex-start; color: var(--text-soft); }
.check-list .tick {
  flex: 0 0 auto;
  width: 24px;
  height: 24px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-ink);
  display: grid;
  place-items: center;
  margin-top: 2px;
}
.check-list .tick svg { width: 13px; height: 13px; }
.check-list b { color: var(--text); font-weight: 600; }

/* ---------- pricing ---------- */
.plans {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
  max-width: 820px;
  margin-inline: auto;
}
.plan {
  padding: 34px 30px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--card);
  display: flex;
  flex-direction: column;
}
.plan.featured {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-tint);
  position: relative;
}
.plan .tag {
  position: absolute;
  top: 20px;
  right: 24px;
  background: var(--accent);
  color: var(--accent-ink);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 999px;
}
.plan h3 { font-size: 1.3rem; }
.plan .price {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 2.8rem;
  letter-spacing: -0.03em;
  margin: 12px 0 4px;
}
.plan .price small { font-size: 1rem; font-weight: 500; color: var(--text-muted); }
.plan .price-sub { color: var(--text-muted); font-size: 0.95rem; margin-bottom: 22px; }
.plan ul { list-style: none; padding: 0; margin: 0 0 26px; display: grid; gap: 12px; }
.plan li { display: flex; gap: 11px; align-items: flex-start; color: var(--text-soft); }
.plan li .tick {
  flex: 0 0 auto;
  width: 22px; height: 22px;
  border-radius: 999px;
  background: var(--accent-tint);
  color: var(--accent-ink);
  display: grid; place-items: center; margin-top: 3px;
}
html[data-theme="dark"] .plan li .tick { color: var(--accent); }
.plan li .tick svg { width: 12px; height: 12px; }
.plan .btn { margin-top: auto; }

/* ---------- faq ---------- */
.faq { max-width: 820px; margin-inline: auto; }
.qa {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--card);
  margin-bottom: 12px;
  overflow: hidden;
}
.qa summary {
  list-style: none;
  cursor: pointer;
  padding: 20px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 1.08rem;
  color: var(--text);
}
.qa summary::-webkit-details-marker { display: none; }
.qa .plus {
  flex: 0 0 auto;
  width: 28px; height: 28px;
  border-radius: 999px;
  background: var(--accent-tint);
  color: var(--accent-ink);
  display: grid; place-items: center;
  transition: transform 0.2s ease, background-color 0.2s ease;
}
html[data-theme="dark"] .qa .plus { color: var(--accent); }
.qa[open] .plus { transform: rotate(45deg); background: var(--accent); color: var(--accent-ink); }
.qa .plus svg { width: 16px; height: 16px; }
.qa .answer {
  padding: 0 22px 22px;
  color: var(--text-soft);
  max-width: 68ch;
}

/* ---------- final cta ---------- */
.final {
  text-align: center;
  padding: clamp(60px, 8vw, 100px) 0;
}
.final-card {
  position: relative;
  overflow: hidden;
  max-width: 900px;
  margin-inline: auto;
  padding: clamp(40px, 6vw, 68px) 24px;
  border-radius: var(--radius-lg);
  background: var(--bg-soft);
  border: 1px solid var(--border);
}
.final-card::before {
  content: "";
  position: absolute;
  top: -120px; left: 50%;
  transform: translateX(-50%);
  width: 420px; height: 320px;
  background: radial-gradient(circle, var(--accent-glow), transparent 70%);
  pointer-events: none;
}
.final-card h2 {
  position: relative;
  font-size: clamp(1.9rem, 4vw, 2.9rem);
}
.final-card p {
  position: relative;
  margin: 16px auto 0;
  max-width: 46ch;
  color: var(--text-soft);
  font-size: 1.12rem;
}
.final-card .store-badges { justify-content: center; }

/* ---------- footer ---------- */
.footer {
  border-top: 1px solid var(--border);
  background: var(--bg-soft);
  padding: 40px 0;
}
.footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  align-items: center;
  justify-content: space-between;
}
.footer .brand { font-size: 1.05rem; }
.footer nav { display: flex; flex-wrap: wrap; gap: 20px; }
.footer nav a { color: var(--text-muted); font-size: 0.94rem; }
.footer nav a:hover { color: var(--text); }
.footer .copy { color: var(--text-muted); font-size: 0.88rem; width: 100%; }

/* ---------- reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.in { opacity: 1; transform: none; }

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

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  body { font-size: 1rem; }
  .nav-menu { display: none; }
  .feature-grid { grid-template-columns: 1fr; }
  .plans { grid-template-columns: 1fr; }
}