/* StringAI static site — shared styles */
:root {
  --bg: #ffffff;
  --fg: #1a1a1f;
  --muted: #5b5b66;
  --border: #e6e6ec;
  --card: #f7f7fa;
  --accent: #6d3bf5;
  --accent-fg: #ffffff;
  --maxw: 760px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e0e12;
    --fg: #ececf1;
    --muted: #a2a2ad;
    --border: #26262e;
    --card: #16161c;
    --accent: #9a7bff;
    --accent-fg: #0e0e12;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  overflow-x: hidden;
}
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

header.site {
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(180%) blur(10px);
  z-index: 10;
}
header.site .wrap {
  display: flex; align-items: center; justify-content: space-between;
  height: 58px;
}
.brand { font-weight: 700; letter-spacing: -0.02em; text-decoration: none; color: var(--fg); font-size: 18px; }
.brand span { color: var(--accent); }
nav a { color: var(--muted); text-decoration: none; margin-left: 18px; font-size: 14px; }
nav a:hover { color: var(--fg); }

main { padding: 40px 0 80px; }

.hero { text-align: center; padding: 56px 0 40px; }
.hero h1 { font-size: clamp(30px, 6vw, 46px); line-height: 1.1; letter-spacing: -0.03em; margin: 0 0 14px; }
.hero p { font-size: 18px; color: var(--muted); max-width: 560px; margin: 0 auto 28px; }
.badge {
  display: inline-block; font-size: 12px; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--accent); border: 1px solid var(--border); border-radius: 999px; padding: 5px 12px; margin-bottom: 22px;
}

.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; margin: 36px 0; }
.feature { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 20px; }
.feature h3 { margin: 0 0 6px; font-size: 16px; }
.feature p { margin: 0; color: var(--muted); font-size: 14px; }

.cta-row { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-block; text-decoration: none; border-radius: 10px; padding: 11px 20px; font-weight: 600; font-size: 15px;
  background: var(--accent); color: var(--accent-fg); border: 1px solid transparent;
}
.btn.secondary { background: transparent; color: var(--fg); border-color: var(--border); }

/* Legal document pages */
.legal h1 { font-size: 30px; letter-spacing: -0.02em; margin: 0 0 6px; }
.legal .eff { color: var(--muted); font-size: 14px; margin: 0 0 8px; }
.legal .toc { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 16px 20px; margin: 24px 0; }
.legal .toc ol { margin: 0; padding-left: 20px; }
.legal .toc a { color: var(--accent); text-decoration: none; }
.legal h2 { font-size: 20px; margin: 34px 0 10px; letter-spacing: -0.01em; scroll-margin-top: 72px; }
.legal h3 { font-size: 16px; margin: 22px 0 6px; }
.legal p, .legal li { color: var(--fg); }
.legal .muted, .legal small { color: var(--muted); }
.legal a { color: var(--accent); }

.callout {
  border: 1px solid var(--border); border-left: 4px solid var(--accent);
  background: var(--card); border-radius: 8px; padding: 14px 18px; margin: 20px 0;
}

/* Waitlist signup */
.waitlist {
  background: var(--card); border: 1px solid var(--border); border-radius: 14px;
  padding: 28px 24px; margin: 36px 0 20px; text-align: center;
}
.waitlist h2 { margin: 0 0 8px; font-size: 22px; letter-spacing: -0.02em; }
.waitlist > p { color: var(--muted); margin: 0 auto 20px; max-width: 460px; font-size: 15px; }
.waitlist form {
  display: flex; gap: 10px; flex-wrap: wrap; justify-content: center;
  max-width: 460px; margin: 0 auto;
}
.waitlist input[type="email"] {
  flex: 1 1 240px; min-width: 0;
  padding: 11px 14px; font-size: 15px; font-family: inherit;
  color: var(--fg); background: var(--bg);
  border: 1px solid var(--border); border-radius: 10px;
}
.waitlist input[type="email"]::placeholder { color: var(--muted); }
.waitlist input[type="email"]:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 1px; border-color: transparent;
}
.waitlist button {
  flex: 0 0 auto; cursor: pointer; font-family: inherit;
}
.waitlist button[disabled] { opacity: 0.6; cursor: default; }
.waitlist-status { min-height: 1.4em; margin: 12px 0 0; font-size: 14px; color: var(--muted); }
.waitlist-status.ok { color: var(--accent); font-weight: 600; }
.waitlist-status.error { color: #d1344b; }
@media (prefers-color-scheme: dark) { .waitlist-status.error { color: #ff8095; } }
.waitlist-fine { margin: 14px 0 0; font-size: 12px; color: var(--muted); }
.waitlist-fine a { color: var(--muted); }

/* Standalone waitlist page */
main.solo {
  min-height: calc(100dvh - 58px - 78px); /* viewport minus header/footer */
  display: flex;
  align-items: center;
  padding: 32px 0;
}
main.solo .wrap { width: 100%; }
.solo-hero { padding: 8px 0 32px; }
.solo-waitlist { margin: 0; }
@media (max-width: 480px) {
  .solo-hero h1 { font-size: clamp(28px, 8vw, 38px); }
  .solo-hero p { font-size: 16px; }
  .waitlist.solo-waitlist { padding: 22px 18px; border-radius: 16px; }
}

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

table.data { width: 100%; border-collapse: collapse; margin: 16px 0; font-size: 14px; display: block; overflow-x: auto; }
table.data th, table.data td { border: 1px solid var(--border); padding: 9px 12px; text-align: left; vertical-align: top; }
table.data th { background: var(--card); font-weight: 600; }

footer.site { border-top: 1px solid var(--border); padding: 28px 0; color: var(--muted); font-size: 13px; }
footer.site .wrap { display: flex; flex-wrap: wrap; gap: 8px 18px; justify-content: space-between; align-items: center; }
footer.site a { color: var(--muted); text-decoration: none; }
footer.site a:hover { color: var(--fg); }
footer.site .links a { margin-left: 16px; }