/* mosAIc marketing site — shared styles (light/dark aware) */
:root {
  --accent: #1a73e8;
  --accent-2: #7c3aed;
  --fg: #1a1c1f;
  --muted: #5f6368;
  --line: #e5e7eb;
  --bg: #ffffff;
  --bg-soft: #f6f8fb;
  --code-bg: #f1f3f4;
  --ok: #188038;
  --radius: 12px;
  --maxw: 940px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --fg: #e8eaed;
    --muted: #9aa0a6;
    --line: #2c2f34;
    --bg: #0f1113;
    --bg-soft: #16191c;
    --code-bg: #1c2024;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Inter', 'Google Sans', Roboto, -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
  color: var(--fg);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

/* Header */
header.site {
  position: sticky; top: 0; z-index: 10;
  backdrop-filter: saturate(150%) blur(8px);
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  border-bottom: 1px solid var(--line);
}
header.site .wrap { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.brand { font-weight: 700; font-size: 20px; letter-spacing: -0.02em; color: var(--fg); }
.brand .ai { color: var(--accent); }
nav.top a { color: var(--muted); font-size: 14px; margin-left: 20px; font-weight: 500; }
nav.top a:hover { color: var(--fg); text-decoration: none; }
@media (max-width: 620px) { nav.top a:not(.btn) { display: none; } }

/* Buttons */
.btn {
  display: inline-block; padding: 10px 18px; border-radius: 999px;
  font-weight: 600; font-size: 14px; border: 1px solid var(--accent);
  cursor: pointer;
}
.btn.primary { background: var(--accent); color: #fff; }
.btn.primary:hover { text-decoration: none; opacity: .92; }
.btn.ghost { background: transparent; color: var(--accent); }
.btn.ghost:hover { text-decoration: none; background: color-mix(in srgb, var(--accent) 8%, transparent); }

/* Hero */
.hero { padding: 72px 0 40px; text-align: center; }
.pill {
  display: inline-block; font-size: 12px; font-weight: 600; letter-spacing: .04em;
  text-transform: uppercase; color: var(--accent);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  border-radius: 999px; padding: 5px 12px; margin-bottom: 20px;
}
.hero h1 { font-size: clamp(32px, 6vw, 52px); line-height: 1.08; letter-spacing: -0.03em; margin: 0 0 16px; }
.hero h1 .grad {
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero p.lede { font-size: clamp(16px, 2.4vw, 20px); color: var(--muted); max-width: 640px; margin: 0 auto 28px; }
.cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* Sections */
section { padding: 48px 0; border-top: 1px solid var(--line); }
section h2 { font-size: clamp(22px, 3.5vw, 30px); letter-spacing: -0.02em; margin: 0 0 8px; }
section .sub { color: var(--muted); margin: 0 0 28px; max-width: 620px; }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
@media (max-width: 720px) { .steps { grid-template-columns: 1fr; } }
.step { background: var(--bg-soft); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; }
.step .n { width: 28px; height: 28px; border-radius: 8px; background: var(--accent); color: #fff;
  font-weight: 700; display: grid; place-items: center; margin-bottom: 12px; }
.step h3 { margin: 0 0 6px; font-size: 16px; }
.step p { margin: 0; color: var(--muted); font-size: 14px; }

/* Function cards */
.fgrid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
@media (max-width: 720px) { .fgrid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .fgrid { grid-template-columns: 1fr; } }
.fn { background: var(--bg-soft); border: 1px solid var(--line); border-radius: 10px; padding: 14px; }
.fn code { display: block; font-family: 'Roboto Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12.5px; color: var(--accent); margin-bottom: 4px; word-break: break-word; }
.fn span { font-size: 13px; color: var(--muted); }

/* Code sample */
pre.sample {
  background: var(--code-bg); border: 1px solid var(--line); border-radius: 10px;
  padding: 16px 18px; overflow-x: auto; font-size: 13.5px;
  font-family: 'Roboto Mono', ui-monospace, SFMono-Regular, Menlo, monospace; line-height: 1.7;
}
pre.sample .c { color: var(--muted); }

.callout {
  background: linear-gradient(120deg,
    color-mix(in srgb, var(--accent) 8%, var(--bg)),
    color-mix(in srgb, var(--accent-2) 8%, var(--bg)));
  border: 1px solid var(--line); border-radius: var(--radius); padding: 24px;
}
.callout h2 { margin-top: 0; }

/* Footer */
footer.site { border-top: 1px solid var(--line); padding: 32px 0; color: var(--muted); font-size: 13.5px; }
footer.site .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
footer.site a { color: var(--muted); }
footer.site a:hover { color: var(--fg); }
footer.site nav a { margin-left: 16px; }
@media (max-width: 560px) { footer.site .wrap { flex-direction: column; } footer.site nav a { margin: 0 16px 0 0; } }

/* Legal pages */
.legal { padding: 40px 0 64px; }
.legal h1 { font-size: 32px; letter-spacing: -0.02em; margin-bottom: 4px; }
.legal .updated { color: var(--muted); font-size: 14px; margin-bottom: 32px; }
.legal h2 { font-size: 20px; margin: 32px 0 8px; }
.legal p, .legal li { color: var(--fg); }
.legal .muted, .legal small { color: var(--muted); }
.legal code { background: var(--code-bg); padding: 1px 5px; border-radius: 4px; font-size: 13px; }
.legal .back { display: inline-block; margin-bottom: 24px; font-size: 14px; }
.legal table { border-collapse: collapse; width: 100%; margin: 12px 0; font-size: 14px; }
.legal th, .legal td { border: 1px solid var(--line); padding: 8px 10px; text-align: left; vertical-align: top; }
.legal th { background: var(--bg-soft); }