/* Relay marketing + legal site — Apple-minimal, light with adaptive dark mode.
   System font stack (no web-font dependency), one restrained accent, generous whitespace.
   Design pass: ui-ux-pro-max Quick Reference §1–§6 (contrast, focus, responsive, type/spacing scale). */

:root {
  --ink: #1d1d1f;          /* primary text (≈15:1 on white) */
  --ink-2: #55555a;        /* secondary text (≈6:1 on white) */
  --ink-3: #86868b;        /* tertiary / captions */
  --bg: #ffffff;
  --surface: #f5f5f7;      /* Apple light gray */
  --surface-2: #ffffff;
  --border: #d2d2d7;       /* hairline */
  --border-strong: #c7c7cc;
  --accent: #0066cc;       /* restrained blue — links + CTA (white on this ≈5.5:1) */
  --accent-press: #0058b3;
  --accent-tint: rgba(0, 102, 204, 0.08);
  --shadow: 0 1px 2px rgba(0,0,0,.04), 0 8px 24px rgba(0,0,0,.06);
  --radius: 12px;
  --radius-lg: 18px;
  --maxw: 1080px;
  --space: 8px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #f5f5f7;
    --ink-2: #b4b4b9;
    --ink-3: #86868b;
    --bg: #0b0b0c;
    --surface: #161617;
    --surface-2: #1c1c1e;
    --border: #303033;
    --border-strong: #3a3a3d;
    --accent: #2997ff;      /* Apple dark-mode blue (white/near-black contrast holds) */
    --accent-press: #47a6ff;
    --accent-tint: rgba(41, 151, 255, 0.12);
    --shadow: 0 1px 2px rgba(0,0,0,.4), 0 8px 30px rgba(0,0,0,.5);
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 { color: var(--ink); letter-spacing: -0.02em; line-height: 1.1; margin: 0 0 .5em; }
h1 { font-size: clamp(2.4rem, 6vw, 4rem); font-weight: 650; }
h2 { font-size: clamp(1.8rem, 4vw, 2.6rem); font-weight: 600; }
h3 { font-size: 1.3rem; font-weight: 600; letter-spacing: -0.01em; }
p { margin: 0 0 1em; color: var(--ink-2); }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
strong { color: var(--ink); font-weight: 600; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.skip-link {
  position: absolute; left: -999px; top: 0; background: var(--accent); color: #fff;
  padding: 10px 16px; border-radius: 0 0 8px 0; z-index: 100;
}
.skip-link:focus { left: 0; }

/* ---------- header / nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 40;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--border);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 56px; }
.brand { display: inline-flex; align-items: center; gap: 9px; font-weight: 600; color: var(--ink); font-size: 1.05rem; letter-spacing: -0.01em; }
.brand:hover { text-decoration: none; }
.brand svg { display: block; }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a { color: var(--ink-2); font-size: 0.95rem; }
.nav-links a:hover { color: var(--ink); text-decoration: none; }
@media (max-width: 620px) { .nav-links a.nav-hide-sm { display: none; } .nav-links { gap: 16px; } }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font: inherit; font-size: 1rem; font-weight: 500; line-height: 1;
  padding: 13px 22px; min-height: 44px; border-radius: var(--radius);
  border: 1px solid transparent; cursor: pointer; text-decoration: none;
  transition: background-color .18s ease, transform .18s ease, border-color .18s ease, color .18s ease;
}
.btn:hover { text-decoration: none; }
.btn:active { transform: scale(0.98); }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-press); color: #fff; }
.btn-secondary { background: transparent; color: var(--ink); border-color: var(--border-strong); }
.btn-secondary:hover { background: var(--surface); }
.btn-lg { font-size: 1.06rem; padding: 15px 28px; min-height: 50px; }

/* ---------- sections ---------- */
section { padding: 88px 0; }
.section-tight { padding: 56px 0; }
.eyebrow { text-transform: uppercase; letter-spacing: 0.08em; font-size: 0.8rem; font-weight: 600; color: var(--accent); margin: 0 0 14px; }
.lead { font-size: clamp(1.15rem, 2.4vw, 1.4rem); color: var(--ink-2); line-height: 1.5; }

/* ---------- hero ---------- */
.hero { padding: 96px 0 72px; text-align: center; }
.hero .lead { max-width: 40ch; margin-left: auto; margin-right: auto; }
.hero-cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-top: 34px; }
.trustline { margin-top: 30px; color: var(--ink-3); font-size: 0.92rem; display: flex; gap: 10px 22px; justify-content: center; flex-wrap: wrap; }
.trustline span { display: inline-flex; align-items: center; gap: 7px; }
.dot { width: 5px; height: 5px; border-radius: 50%; background: var(--accent); display: inline-block; }

/* ---------- feature grid ---------- */
.grid { display: grid; gap: 20px; grid-template-columns: repeat(2, 1fr); }
@media (max-width: 720px) { .grid { grid-template-columns: 1fr; } }
.card {
  background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 30px; text-align: left;
}
.card .icon {
  width: 44px; height: 44px; border-radius: 11px; display: inline-flex; align-items: center; justify-content: center;
  background: var(--accent-tint); color: var(--accent); margin-bottom: 18px;
}
.card h3 { margin-bottom: 8px; }
.card p { margin: 0; font-size: 0.98rem; }

/* ---------- steps ---------- */
.steps { display: grid; gap: 20px; grid-template-columns: repeat(3, 1fr); counter-reset: step; }
@media (max-width: 720px) { .steps { grid-template-columns: 1fr; } }
.step { text-align: left; }
.step .num {
  width: 34px; height: 34px; border-radius: 50%; border: 1px solid var(--border-strong);
  display: inline-flex; align-items: center; justify-content: center; font-weight: 600; color: var(--ink); margin-bottom: 14px;
}

/* ---------- pricing ---------- */
.plans { display: grid; gap: 22px; grid-template-columns: repeat(2, 1fr); max-width: 760px; margin: 0 auto; align-items: stretch; }
@media (max-width: 720px) { .plans { grid-template-columns: 1fr; } }
.plan {
  background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 34px 30px; display: flex; flex-direction: column; position: relative;
}
.plan.featured { border-color: var(--accent); box-shadow: var(--shadow); position: relative; }
.plan .badge {
  position: absolute; top: -12px; left: 30px; background: var(--accent); color: #fff;
  font-size: 0.72rem; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase;
  padding: 5px 12px; border-radius: 999px;
}
.plan .price { font-size: 3rem; font-weight: 650; color: var(--ink); letter-spacing: -0.03em; font-variant-numeric: tabular-nums; margin: 8px 0 2px; }
.plan .price-was { text-decoration: line-through; color: var(--ink-3); font-weight: 500; font-size: 1.7rem; margin-right: 10px; }
.plan .price small { font-size: 1rem; font-weight: 400; color: var(--ink-3); letter-spacing: 0; }
.plan .price-note { color: var(--ink-3); font-size: 0.9rem; margin-bottom: 22px; }
.features { list-style: none; padding: 0; margin: 0 0 26px; display: grid; gap: 12px; }
.features li { display: flex; gap: 11px; align-items: flex-start; color: var(--ink-2); font-size: 0.97rem; }
.features li svg { flex: none; margin-top: 2px; color: var(--accent); }
.plan .btn { margin-top: auto; width: 100%; }

/* ---------- FAQ ---------- */
.faq { max-width: 720px; margin: 0 auto; }
.faq details { border-bottom: 1px solid var(--border); padding: 20px 0; }
.faq summary { cursor: pointer; font-weight: 600; color: var(--ink); list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--ink-3); font-size: 1.4rem; font-weight: 400; }
.faq details[open] summary::after { content: "\2212"; }
.faq details p { margin: 14px 0 0; }

/* ---------- CTA band ---------- */
.cta-band { background: var(--surface); border-radius: 24px; padding: 64px 32px; text-align: center; }
.cta-band h2 { margin-bottom: 10px; }

/* ---------- prose (legal pages) ---------- */
.prose { max-width: 720px; margin: 0 auto; }
.prose h1 { font-size: clamp(2rem, 5vw, 2.8rem); margin-bottom: 6px; }
.prose .updated { color: var(--ink-3); font-size: 0.9rem; margin-bottom: 40px; }
.review-note { display: inline-block; background: var(--surface); border: 1px solid var(--border); color: var(--ink-2); font-size: 0.85rem; padding: 7px 13px; border-radius: 8px; margin: -24px 0 38px; }
.prose h2 { font-size: 1.4rem; margin: 40px 0 12px; }
.prose h3 { font-size: 1.1rem; margin: 26px 0 8px; }
.prose p, .prose li { color: var(--ink-2); font-size: 1.02rem; }
.prose ul, .prose ol { padding-left: 22px; }
.prose li { margin-bottom: 8px; }
.prose a { text-decoration: underline; }

/* ---------- footer ---------- */
.site-footer { border-top: 1px solid var(--border); padding: 48px 0 60px; margin-top: 40px; }
.footer-grid { display: flex; justify-content: space-between; align-items: flex-start; gap: 30px; flex-wrap: wrap; }
.footer-links { display: flex; gap: 24px; flex-wrap: wrap; }
.footer-links a { color: var(--ink-2); font-size: 0.92rem; }
.footer-links a:hover { color: var(--ink); text-decoration: none; }
.footer-legal { color: var(--ink-3); font-size: 0.86rem; margin-top: 22px; max-width: 60ch; }