/* BlindClock site — shared styles
   Palette derived from the app icon: felt green, gold hands, chip red/cream. */

:root {
  --felt: #0e2019;
  --panel: #163024;
  --panel-2: #1c3a2c;
  --line: rgba(244, 237, 222, 0.12);
  --gold: #d4af6a;
  --gold-bright: #e8c989;
  --red: #c0463a;
  --ink: #f4ede0;
  --muted: #9fb2a4;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
  --radius: 16px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background:
    radial-gradient(1100px 600px at 50% -10%, #1b3a2b 0%, var(--felt) 60%),
    var(--felt);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue",
    "PingFang TC", "Heiti TC", "Microsoft JhengHei", sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* ---- Language ----
   English lives in the HTML; assets/lang.js swaps innerHTML for [data-i18n]
   elements from assets/i18n.js when another language is selected. */

.container {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- Nav ---- */
.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(14, 32, 25, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

.nav-inner {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 12px 24px;
  max-width: 980px;
  margin: 0 auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--ink);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: 0.2px;
}

.brand img {
  width: 30px;
  height: 30px;
  border-radius: 7px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-left: auto;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 14.5px;
  white-space: nowrap;
}

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

.lang-select {
  appearance: none;
  -webkit-appearance: none;
  border: 1px solid var(--line);
  border-radius: 999px;
  background-color: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 13px;
  padding: 5px 26px 5px 12px;
  margin-left: 6px;
  cursor: pointer;
  white-space: nowrap;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath fill='%23c9a84a' d='M0 0l5 6 5-6z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
}

.lang-select:hover {
  color: var(--gold-bright);
  border-color: var(--gold);
}

.lang-select option {
  color: #1c1607;
  background: #fff;
}

/* ---- Hero ---- */
.hero {
  text-align: center;
  padding: 72px 24px 56px;
}

.hero img.app-icon {
  width: 132px;
  height: 132px;
  border-radius: 30px;
  box-shadow: var(--shadow);
}

.hero h1 {
  font-size: clamp(36px, 6vw, 54px);
  margin: 26px 0 10px;
  letter-spacing: -0.5px;
}

.hero .tagline {
  font-size: clamp(18px, 2.6vw, 22px);
  color: var(--gold-bright);
  margin: 0 0 14px;
}

.hero .sub {
  color: var(--muted);
  max-width: 620px;
  margin: 0 auto 30px;
  font-size: 16px;
}

.badge-row {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.store-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: #000;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 12px;
  padding: 10px 20px;
  text-decoration: none;
  font-size: 16px;
  font-weight: 600;
  transition: transform 0.15s ease;
}

.store-badge:hover { transform: scale(1.03); }

.store-badge .apple { font-size: 22px; line-height: 1; }

.version-pill {
  display: inline-block;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 5px 14px;
  color: var(--muted);
  font-size: 13px;
}

/* ---- Sections ---- */
section { padding: 48px 0; }

.section-title {
  text-align: center;
  font-size: clamp(26px, 4vw, 34px);
  margin: 0 0 8px;
}

.section-sub {
  text-align: center;
  color: var(--muted);
  margin: 0 auto 36px;
  max-width: 640px;
}

/* ---- Feature grid ---- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}

.card {
  background: linear-gradient(160deg, var(--panel-2), var(--panel));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
}

.card .suit {
  font-size: 20px;
  color: var(--gold);
}

.card .suit.red { color: var(--red); }

.card h3 {
  margin: 10px 0 6px;
  font-size: 17px;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 14.5px;
}

/* ---- What's new ---- */
.whatsnew {
  background: linear-gradient(160deg, var(--panel-2), var(--panel));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 32px;
}

.whatsnew h2 { margin-top: 0; }

.whatsnew ul {
  margin: 0;
  padding-left: 22px;
}

.whatsnew li {
  margin: 9px 0;
  color: var(--ink);
}

.whatsnew li b { color: var(--gold-bright); }

/* ---- Pro section ---- */
.pro {
  text-align: center;
  border: 1px solid rgba(212, 175, 106, 0.4);
  border-radius: var(--radius);
  background:
    radial-gradient(600px 200px at 50% 0%, rgba(212, 175, 106, 0.12), transparent),
    linear-gradient(160deg, var(--panel-2), var(--panel));
  padding: 40px 28px;
}

.pro .crown { font-size: 34px; }

.pro h2 { margin: 10px 0 8px; }

.pro p.lead {
  color: var(--muted);
  max-width: 560px;
  margin: 0 auto 22px;
}

.pro-points {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  list-style: none;
  margin: 0;
  padding: 0;
}

.pro-points li {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 16px;
  font-size: 14px;
  color: var(--ink);
}

/* ---- Content pages (privacy / support) ---- */
.page {
  padding: 56px 0 30px;
}

.page h1 {
  font-size: clamp(30px, 5vw, 40px);
  margin: 0 0 6px;
}

.page .meta {
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 34px;
}

.prose h2 {
  font-size: 21px;
  margin: 36px 0 10px;
  color: var(--gold-bright);
}

.prose p, .prose li { color: var(--ink); }

.prose ul { padding-left: 22px; }

.prose li { margin: 6px 0; }

.prose a { color: var(--gold-bright); }

.callout {
  background: linear-gradient(160deg, var(--panel-2), var(--panel));
  border: 1px solid var(--line);
  border-left: 3px solid var(--gold);
  border-radius: 12px;
  padding: 18px 22px;
  margin: 22px 0;
}

.callout p { margin: 0 0 8px; }
.callout ul { margin: 0; }

/* ---- FAQ ---- */
details.faq {
  background: linear-gradient(160deg, var(--panel-2), var(--panel));
  border: 1px solid var(--line);
  border-radius: 12px;
  margin: 12px 0;
  padding: 4px 20px;
}

details.faq summary {
  cursor: pointer;
  font-weight: 600;
  padding: 12px 0;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 10px;
}

details.faq summary::-webkit-details-marker { display: none; }

details.faq summary::before {
  content: "♠";
  color: var(--gold);
  font-size: 15px;
  transition: transform 0.2s ease;
}

details.faq[open] summary::before { transform: rotate(90deg); }

details.faq .answer {
  padding: 0 0 16px 25px;
  color: var(--muted);
  font-size: 15px;
}

details.faq .answer a { color: var(--gold-bright); }

/* ---- Contact card ---- */
.contact-card {
  text-align: center;
  background: linear-gradient(160deg, var(--panel-2), var(--panel));
  border: 1px solid rgba(212, 175, 106, 0.4);
  border-radius: var(--radius);
  padding: 32px 26px;
  margin: 8px 0 40px;
}

.contact-card .mail-btn {
  display: inline-block;
  background: var(--gold);
  color: #1c1607;
  font-weight: 700;
  text-decoration: none;
  border-radius: 999px;
  padding: 11px 26px;
  margin-top: 14px;
}

.contact-card .mail-btn:hover { background: var(--gold-bright); }

.contact-card p { color: var(--muted); margin: 6px 0 0; }

/* ---- Footer ---- */
footer {
  border-top: 1px solid var(--line);
  margin-top: 40px;
  padding: 30px 0 44px;
  text-align: center;
  color: var(--muted);
  font-size: 13.5px;
}

footer .foot-links {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 12px;
}

footer a {
  color: var(--muted);
  text-decoration: none;
}

footer a:hover { color: var(--gold-bright); }

@media (max-width: 560px) {
  .nav-links { gap: 12px; }
  .nav-links a.nav-extra { display: none; }
  .hero { padding-top: 52px; }
}