/* FullRink — static landing page styles */
:root {
  --bg: #071628;
  --bg-2: #0B1B2B;
  --bg-3: #0E2A47;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-2: rgba(255, 255, 255, 0.07);
  --line: rgba(143, 179, 204, 0.18);
  --text: #F5F8FB;
  --text-2: #B8CCDC;
  --muted: #8FB3CC;
  --ice: #5EC8F2;
  --ice-2: #9ADFF8;
  --red: #FF3B57;
  --radius: 18px;
  --radius-sm: 12px;
  --font-head: "Space Grotesk", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --font-body: "Inter", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  background-image:
    radial-gradient(900px 500px at 10% -10%, rgba(94, 200, 242, 0.18), transparent 60%),
    radial-gradient(700px 400px at 100% 0%, rgba(255, 59, 87, 0.10), transparent 60%);
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: var(--ice); text-decoration: none; }
a:hover { color: var(--ice-2); }
h1, h2, h3, h4 { font-family: var(--font-head); line-height: 1.1; margin: 0 0 0.5em; letter-spacing: -0.02em; }
h1 { font-size: clamp(2.2rem, 6vw, 4rem); }
h2 { font-size: clamp(1.7rem, 4vw, 2.5rem); }
h3 { font-size: 1.25rem; }
p { margin: 0 0 1em; }
.muted { color: var(--muted); }
.small { font-size: 0.9rem; }
.accent { color: var(--ice); }

.container { width: min(1120px, 100% - 32px); margin-inline: auto; }
.section { padding: clamp(56px, 9vw, 104px) 0; }
.section-alt { background: var(--bg-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-head { max-width: 640px; margin-bottom: 40px; }
.eyebrow {
  font-family: var(--font-head); font-weight: 500; font-size: 0.8rem;
  letter-spacing: 0.22em; text-transform: uppercase; color: var(--ice); margin-bottom: 12px;
}

.skip {
  position: absolute; left: -999px; top: 8px; background: var(--ice); color: var(--bg);
  padding: 8px 12px; border-radius: 8px; z-index: 100;
}
.skip:focus { left: 8px; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(7, 22, 40, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 68px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); }
.brand-name { font-family: var(--font-head); font-weight: 700; font-size: 1.35rem; letter-spacing: -0.03em; }
.nav nav { display: flex; align-items: center; gap: 22px; }
.nav nav a { color: var(--text-2); font-weight: 500; font-size: 0.95rem; }
.nav nav a:hover { color: var(--text); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 13px 22px; border-radius: 999px;
  background: var(--ice); color: var(--bg); font-weight: 600;
  border: 1px solid transparent; transition: transform 0.15s ease, background 0.15s ease;
}
.btn:hover { background: var(--ice-2); color: var(--bg); transform: translateY(-1px); }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--line); }
.btn-ghost:hover { background: var(--surface-2); color: var(--text); }
.btn-small { padding: 9px 16px; font-size: 0.9rem; }
.nav nav .btn-small { color: var(--bg); }

/* Hero */
.hero { padding: clamp(56px, 10vw, 120px) 0 clamp(40px, 7vw, 80px); }
.hero-grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: 48px; align-items: center; }
.lead { font-size: 1.15rem; color: var(--text-2); max-width: 580px; }
.lead strong { color: var(--text); font-weight: 600; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 28px 0 24px; }
.hero-chips { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.hero-chips li {
  font-size: 0.8rem; font-weight: 500; color: var(--text-2);
  padding: 5px 12px; border-radius: 999px; border: 1px solid var(--line); background: var(--surface);
}
.hero-art { display: flex; justify-content: center; }
.hero-art img {
  width: min(320px, 70vw); height: auto;
  filter: drop-shadow(0 30px 60px rgba(94, 200, 242, 0.25));
  animation: float 6s ease-in-out infinite;
}
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
@media (prefers-reduced-motion: reduce) { .hero-art img { animation: none; } html { scroll-behavior: auto; } }

/* Cards */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; }
.card {
  position: relative;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px; display: flex; flex-direction: column;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}
.card:hover { transform: translateY(-3px); border-color: rgba(94, 200, 242, 0.45); background: var(--surface-2); }
.card p { color: var(--text-2); flex: 1; }
.card-icon {
  width: 48px; height: 48px; border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--bg-3), var(--bg-2));
  border: 1px solid var(--line); display: grid; place-items: center; margin-bottom: 18px;
}
.card-icon svg { width: 24px; height: 24px; fill: none; stroke: var(--ice); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.card-link { font-weight: 600; font-size: 0.95rem; }
.card-link[aria-disabled="true"] { color: var(--muted); cursor: default; }
.card-link[aria-disabled="true"]::after { content: " (coming soon)"; font-weight: 400; font-size: 0.8rem; }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.step { border-top: 2px solid var(--line); padding-top: 20px; }
.step-num {
  display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 50%;
  background: var(--red); color: #fff; font-family: var(--font-head); font-weight: 700; margin-bottom: 14px;
}
.step p { color: var(--text-2); margin: 0; }

/* CTA */
.cta-box {
  text-align: center; padding: clamp(40px, 7vw, 72px) 24px;
  background: linear-gradient(160deg, var(--bg-3), var(--bg-2));
  border: 1px solid var(--line); border-radius: 28px;
}
.cta-box img { margin: 0 auto 20px; }
.cta-box .hero-actions { justify-content: center; margin-bottom: 0; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); padding: 48px 0 24px; background: var(--bg-2); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 32px; }
.footer-grid .brand { margin-bottom: 12px; }
.footer-col { display: flex; flex-direction: column; gap: 8px; }
.footer-col h4 { font-size: 0.85rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); margin-bottom: 6px; }
.footer-col a { color: var(--text-2); font-size: 0.95rem; }
.footer-col a:hover { color: var(--text); }
.footer-bottom { margin-top: 36px; padding-top: 20px; border-top: 1px solid var(--line); }

/* Responsive */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-art { order: -1; }
  .hero-art img { width: min(200px, 50vw); }
  .steps { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .nav nav a:not(.btn) { display: none; }
  .footer-grid { grid-template-columns: 1fr; }
  .card { padding: 22px; }
}

/* App pages */
.app-hero .eyebrow a { color: var(--ice); }
.app-head { display: flex; align-items: center; gap: 20px; margin-bottom: 16px; }
.app-icon { width: 96px; height: 96px; border-radius: 24px; box-shadow: 0 16px 40px rgba(94, 200, 242, 0.2); }
.app-head h1 { margin-bottom: 4px; }
.app-head .lead { margin: 0; }
.app-summary { max-width: 720px; }
.app-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 40px; align-items: start; }
.features { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.features li { padding: 14px 16px 14px 44px; position: relative; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-sm); color: var(--text-2); }
.features li::before { content: ""; position: absolute; left: 16px; top: 20px; width: 14px; height: 14px; border-radius: 50%; background: var(--ice); box-shadow: 0 0 0 4px rgba(94, 200, 242, 0.18); }
.app-side h3 { font-size: 0.85rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }
.app-nav { display: flex; flex-direction: column; gap: 6px; }
.app-nav a { padding: 10px 14px; border-radius: var(--radius-sm); border: 1px solid var(--line); color: var(--text-2); }
.app-nav a:hover { color: var(--text); background: var(--surface-2); }
.app-nav a[aria-current="page"] { color: var(--bg); background: var(--ice); border-color: var(--ice); font-weight: 600; }
.shots { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; }
.shots figure { margin: 0; }
.shots img { width: 100%; height: auto; border-radius: var(--radius); border: 1px solid var(--line); background: var(--bg-2); }
.shots figcaption { margin-top: 8px; font-size: 0.85rem; color: var(--muted); text-align: center; }
@media (max-width: 900px) { .app-grid { grid-template-columns: 1fr; } }
@media (max-width: 600px) { .app-head { flex-direction: column; align-items: flex-start; } .app-icon { width: 72px; height: 72px; } }

/* Content carried over from app sites (Thai) */
.th { font-family: "Inter", "Noto Sans Thai", "Segoe UI", sans-serif; }
.notice { margin-top: 22px; padding: 16px 18px; border-radius: var(--radius-sm); background: #0F2A1E; border: 1px solid #1D6E4F; color: var(--text-2); }
.notice strong { color: #7CFC98; }
.steps-list { margin: 0; padding-left: 22px; color: var(--text-2); display: grid; gap: 10px; }
.steps-list strong { color: var(--text); }
.changelog { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.changelog h3 { font-size: 1rem; color: var(--ice); margin: 18px 0 6px; }
.changelog h3:first-child { margin-top: 0; }
.changelog ul { margin: 0; padding-left: 20px; color: var(--text-2); font-size: 0.95rem; }

/* Brand line on cards */
.card .by { margin: -6px 0 10px; font-family: var(--font-head); font-size: 0.75rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ice); }
.eyebrow a { color: inherit; text-decoration: underline; text-underline-offset: 3px; }
.app-head .by { margin: 0 0 8px; font-family: var(--font-head); font-size: 0.78rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ice); }
.app-head .by a { color: inherit; text-decoration: underline; text-underline-offset: 3px; }