/* DrawSight public site — shared design system.
 * Workstream L (2026-05-02). Single stylesheet for index, privacy,
 * terms, delete-account. No frameworks, no JS dependencies.
 *
 * Brand tokens mirror the in-app dark palette so the public site
 * reads as the same product:
 *   --primary       : #8083FF  (primaryContainer, dark mode)
 *   --primary-soft  : #C0C1FF  (primary, dark mode — used for hovers)
 *   --tertiary      : #4FDBC8  (cyan accent, dark mode)
 *   --bg            : #0C1322  (scaffold background)
 */

:root {
  --primary: #8083FF;
  --primary-soft: #C0C1FF;
  --primary-glow: rgba(128, 131, 255, 0.16);
  --tertiary: #4FDBC8;
  --bg: #0C1322;
  --bg-grad: radial-gradient(circle at top left, rgba(128, 131, 255, 0.10), transparent 36%),
             radial-gradient(circle at bottom right, rgba(79, 219, 200, 0.06), transparent 38%),
             linear-gradient(180deg, #0E142A, #0C1322 65%);
  --surface: #161C30;
  --surface-high: #1E2540;
  --surface-low: #11172A;
  --text: #F2F4F8;
  --text-soft: #A8AEC2;
  --text-muted: #7E839A;
  --outline: rgba(255, 255, 255, 0.08);
  --outline-strong: rgba(255, 255, 255, 0.16);
  --warning: #FFB95F;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.18), 0 16px 48px rgba(0, 0, 0, 0.32);
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  min-height: 100vh;
  background: var(--bg-grad);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--primary-soft); text-decoration: none; transition: color 0.15s ease; }
a:hover { color: var(--text); }
code { font-family: "SF Mono", Menlo, Consolas, "Liberation Mono", monospace; background: var(--surface-low); padding: 2px 6px; border-radius: 4px; font-size: 0.92em; color: var(--primary-soft); }

.shell { width: min(1100px, calc(100% - 32px)); margin: 0 auto; padding: 28px 0 80px; }

/* ── Nav ─────────────────────────────────────────────────────────── */
.nav { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 28px; }
.brand { display: inline-flex; align-items: center; gap: 12px; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase; font-size: 0.92rem; color: var(--text); }
.brand img { width: 36px; height: 36px; border-radius: 8px; }
.nav-links { display: flex; flex-wrap: wrap; gap: 6px; }
.nav-links a { padding: 8px 14px; border-radius: 999px; color: var(--text-soft); font-size: 0.92rem; font-weight: 500; }
.nav-links a:hover { color: var(--text); background: var(--surface); }

/* ── Hero ────────────────────────────────────────────────────────── */
.hero { padding: 56px 0 32px; text-align: center; }
.hero img.hero-logo { width: 96px; height: 96px; border-radius: 22px; box-shadow: 0 10px 40px var(--primary-glow); margin-bottom: 24px; }
.hero h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); line-height: 1.05; letter-spacing: -0.02em; font-weight: 700; max-width: 22ch; margin: 0 auto 18px; }
.hero p.lede { max-width: 56ch; margin: 0 auto; color: var(--text-soft); font-size: clamp(1rem, 1.5vw, 1.18rem); line-height: 1.55; }

.cta-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: 28px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 14px 22px; border-radius: 999px; font-weight: 600; font-size: 0.98rem; transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease; cursor: pointer; border: none; min-height: 48px; }
.btn-primary { background: var(--primary); color: #0D0096; box-shadow: 0 1px 0 rgba(255, 255, 255, 0.18) inset, 0 8px 24px var(--primary-glow); }
.btn-primary:hover { background: var(--primary-soft); color: #1000A9; transform: translateY(-1px); }
.btn-secondary { background: var(--surface); color: var(--text); border: 1px solid var(--outline-strong); }
.btn-secondary:hover { background: var(--surface-high); }

/* ── Section heads ─────────────────────────────────────────────── */
.section-head { text-align: center; margin: 56px 0 28px; }
.section-head h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); letter-spacing: -0.01em; font-weight: 700; margin-bottom: 12px; }
.section-head p { max-width: 52ch; margin: 0 auto; color: var(--text-soft); }

.eyebrow { display: inline-block; font-size: 0.78rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--primary-soft); margin-bottom: 12px; }

/* ── Cards / grid ───────────────────────────────────────────────── */
.grid-4 { display: grid; gap: 16px; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-3 { display: grid; gap: 16px; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-2 { display: grid; gap: 16px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card { background: var(--surface); border: 1px solid var(--outline); border-radius: 16px; padding: 24px; }
.card .num { display: inline-flex; align-items: center; justify-content: center; width: 32px; height: 32px; border-radius: 999px; background: var(--primary-glow); color: var(--primary-soft); font-weight: 700; font-size: 0.92rem; margin-bottom: 14px; }
.card h3 { font-size: 1.08rem; font-weight: 600; margin-bottom: 8px; letter-spacing: -0.01em; }
.card p { color: var(--text-soft); font-size: 0.95rem; }

/* ── Privacy callout ────────────────────────────────────────────── */
.callout { background: linear-gradient(135deg, rgba(128, 131, 255, 0.10), rgba(79, 219, 200, 0.04)); border: 1px solid var(--outline-strong); border-radius: 20px; padding: 36px; margin: 40px 0; text-align: center; }
.callout h2 { font-size: clamp(1.5rem, 2.6vw, 2rem); margin-bottom: 14px; letter-spacing: -0.01em; }
.callout p { max-width: 56ch; margin: 0 auto; color: var(--text-soft); }
.callout p + p { margin-top: 12px; }

/* ── Trust bullets ──────────────────────────────────────────────── */
.trust-list { list-style: none; padding: 0; max-width: 60ch; margin: 0 auto; }
.trust-list li { padding: 12px 0; border-bottom: 1px solid var(--outline); display: flex; align-items: flex-start; gap: 12px; color: var(--text-soft); }
.trust-list li:last-child { border-bottom: 0; }
.trust-list li::before { content: "✓"; color: var(--tertiary); font-weight: 700; flex: 0 0 auto; }

/* ── FAQ accordion (no JS — uses <details>) ─────────────────────── */
.faq { max-width: 700px; margin: 0 auto; }
.faq details { background: var(--surface); border: 1px solid var(--outline); border-radius: 12px; padding: 0; margin-bottom: 12px; transition: border-color 0.15s ease; }
.faq details[open] { border-color: var(--outline-strong); }
.faq summary { padding: 18px 22px; cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; color: var(--text); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--text-muted); font-size: 1.4rem; line-height: 1; transition: transform 0.15s ease; }
.faq details[open] summary::after { content: "−"; }
.faq details p { padding: 0 22px 20px; color: var(--text-soft); font-size: 0.95rem; }
.faq details a { color: var(--primary-soft); }

/* ── Legal-page layout (privacy/terms/delete) ───────────────────── */
.legal-page { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 48px; align-items: start; margin-top: 16px; }
.legal-toc { position: sticky; top: 24px; background: var(--surface); border: 1px solid var(--outline); border-radius: 12px; padding: 18px; }
.legal-toc .eyebrow { margin-bottom: 14px; }
.legal-toc ul { list-style: none; padding: 0; }
.legal-toc li { padding: 4px 0; }
.legal-toc a { color: var(--text-soft); font-size: 0.92rem; line-height: 1.4; display: block; padding: 4px 8px; border-radius: 6px; }
.legal-toc a:hover { color: var(--text); background: var(--surface-high); }

.legal-body { max-width: 70ch; }
.legal-body h1 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); letter-spacing: -0.02em; margin-bottom: 14px; line-height: 1.15; }
.legal-body .effective { display: inline-flex; gap: 8px; align-items: center; padding: 6px 12px; border-radius: 999px; background: var(--surface); border: 1px solid var(--outline); color: var(--text-soft); font-size: 0.86rem; margin-bottom: 28px; }
.legal-body h2 { font-size: 1.32rem; font-weight: 600; margin: 36px 0 14px; letter-spacing: -0.005em; scroll-margin-top: 24px; }
.legal-body h2:first-of-type { margin-top: 0; }
.legal-body p, .legal-body li { color: var(--text-soft); font-size: 1rem; line-height: 1.7; }
.legal-body p { margin-bottom: 14px; }
.legal-body ul, .legal-body ol { padding-left: 24px; margin-bottom: 14px; }
.legal-body li { margin-bottom: 8px; }
.legal-body strong { color: var(--text); font-weight: 600; }
.legal-body a { color: var(--primary-soft); border-bottom: 1px solid var(--outline-strong); }
.legal-body a:hover { color: var(--text); border-color: var(--text); }

/* ── Footer ─────────────────────────────────────────────────────── */
.footer { margin-top: 80px; padding-top: 32px; border-top: 1px solid var(--outline); display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.footer-col h4 { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-muted); margin-bottom: 12px; font-weight: 600; }
.footer-col a { display: block; color: var(--text-soft); font-size: 0.94rem; padding: 4px 0; }
.footer-col a:hover { color: var(--text); }
.footer-col p { color: var(--text-muted); font-size: 0.88rem; line-height: 1.55; }
.footer-bottom { margin-top: 36px; padding-top: 18px; border-top: 1px solid var(--outline); color: var(--text-muted); font-size: 0.84rem; text-align: center; }

/* ── Responsive ─────────────────────────────────────────────────── */
@media (max-width: 980px) {
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .legal-page { grid-template-columns: 1fr; gap: 24px; }
  .legal-toc { position: static; }
  .footer { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 640px) {
  .shell { width: min(1100px, calc(100% - 24px)); padding: 20px 0 60px; }
  .hero { padding: 32px 0 24px; }
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .footer { grid-template-columns: 1fr; }
  .callout { padding: 24px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001s !important; transition-duration: 0.001s !important; }
}