/* Swyng marketing pages — mirrors flutter_app AppTheme (dark, teal accent). */
:root {
  --teal: #00B4A6;
  --teal-glow: #00E5C8;
  --bg: #0B0B0C;
  --bg-raised: #111114;
  --surface: #16171B;
  --surface-hi: #1C1D22;
  --hairline: #24262C;
  --ink: #F4F4F6;
  --ink-secondary: #9A9CA3;
  --ink-muted: #5E6066;
  --warn: #E0B341;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--teal); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap {
  max-width: 928px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Top bar */
header.topbar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 18px 0;
}
header.topbar img { width: 32px; height: 32px; }
header.topbar .brand {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--ink);
}
header.topbar .brand:hover { text-decoration: none; }
header.topbar nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
header.topbar nav a.link {
  color: var(--ink-secondary);
  padding: 10px 12px;
  font-size: 14px;
}
header.topbar nav a.link:hover { color: var(--ink); text-decoration: none; }

/* Buttons */
.btn {
  display: inline-block;
  border-radius: 10px;
  padding: 14px 22px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
}
.btn:hover { text-decoration: none; filter: brightness(1.08); }
.btn-primary { background: var(--teal); color: #000; }
.btn-outline {
  background: transparent;
  color: var(--ink);
  border-color: var(--surface-hi);
}
.btn-outline.muted { color: var(--ink-secondary); }
.btn-small { padding: 10px 18px; font-size: 14px; }

/* Hero */
.hero { padding: 56px 0 12px; }
.hero h1 {
  font-size: clamp(36px, 6vw, 52px);
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: -1.2px;
}
.hero p.sub {
  margin-top: 16px;
  font-size: 18px;
  color: var(--ink-secondary);
  max-width: 720px;
}
.hero .ctas {
  margin-top: 24px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* Sections */
section { padding: 40px 0 8px; }
section h2 {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.3px;
}
section > .wrap > p, section p.lede {
  margin-top: 8px;
  color: var(--ink-secondary);
  font-size: 15px;
  max-width: 760px;
}

/* Card grids */
.grid {
  margin-top: 18px;
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
}
.card {
  background: var(--surface);
  border: 1px solid var(--surface-hi);
  border-radius: 14px;
  padding: 18px;
}
.card h3 {
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}
.card p {
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.45;
  color: var(--ink-secondary);
}
.card .dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--teal);
  margin-bottom: 10px;
}

/* Compliance banner */
.banner {
  margin-top: 18px;
  background: rgba(224, 179, 65, 0.10);
  border: 1px solid rgba(224, 179, 65, 0.45);
  border-radius: 10px;
  padding: 12px 14px;
  font-size: 12px;
  line-height: 1.45;
  color: var(--ink-secondary);
}

/* Waitlist form */
.waitlist { margin-top: 18px; max-width: 480px; }
.waitlist label {
  display: block;
  font-size: 13px;
  color: var(--ink-secondary);
  margin: 12px 0 6px;
}
.waitlist input, .waitlist textarea {
  width: 100%;
  background: var(--bg-raised);
  border: 1px solid var(--hairline);
  border-radius: 10px;
  color: var(--ink);
  padding: 12px;
  font-size: 14px;
  font-family: inherit;
}
.waitlist input:focus, .waitlist textarea:focus {
  outline: none;
  border-color: var(--teal);
}
.waitlist .msg { margin-top: 10px; font-size: 13px; }
.waitlist .msg.ok { color: var(--teal-glow); }
.waitlist .msg.err { color: #EF5350; }
.waitlist button { margin-top: 14px; }

/* Footer */
footer {
  margin-top: 48px;
  padding: 24px 0 32px;
  border-top: 1px solid var(--surface-hi);
}
footer .disclaimer {
  font-size: 11px;
  color: var(--ink-muted);
  text-align: center;
  max-width: 820px;
  margin: 0 auto;
}
footer .links {
  margin-top: 14px;
  display: flex;
  gap: 18px;
  justify-content: center;
  font-size: 12px;
}
footer .links a { color: var(--ink-secondary); }
footer .copy {
  margin-top: 10px;
  text-align: center;
  font-size: 11px;
  color: var(--ink-muted);
}

/* Prose pages (features / about) */
.prose { padding: 40px 0 8px; }
.prose h1 {
  font-size: clamp(30px, 5vw, 42px);
  font-weight: 800;
  letter-spacing: -1px;
  line-height: 1.15;
}
.prose > p {
  margin-top: 14px;
  color: var(--ink-secondary);
  font-size: 16px;
  max-width: 760px;
}
.prose h2 {
  margin-top: 36px;
  font-size: 20px;
  font-weight: 700;
}