/* QuillSign marketing + docs styles. Served same-origin so the strict CSP
   doesn't need 'unsafe-inline' for these. */
:root {
  --bg: #ffffff;
  --bg-soft: #f4f6fa;
  --ink: #14192a;
  --ink-2: #2c3550;
  --muted: #66708a;
  --accent: #2956c7;
  --accent-dark: #1f43a0;
  --accent-soft: #e8edf8;
  --line: #e2e7f0;
  --green: #1d8a4e;
  --violet: #7048b6;
  --amber: #b07e10;
  --radius: 12px;
  --shadow: 0 8px 30px rgba(20, 30, 60, 0.08);
  --shadow-lg: 0 20px 60px rgba(20, 30, 60, 0.14);
  --maxw: 1140px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }

/* ---------- nav ---------- */
.nav { position: sticky; top: 0; z-index: 50; background: rgba(255, 255, 255, 0.85); backdrop-filter: saturate(180%) blur(10px); border-bottom: 1px solid var(--line); }
.nav-inner { display: flex; align-items: center; gap: 24px; height: 64px; }
.brand { display: flex; align-items: center; gap: 9px; font-weight: 800; font-size: 19px; color: var(--ink); }
.brand:hover { text-decoration: none; }
.brand .mark { width: 28px; height: 28px; border-radius: 7px; background: var(--accent); display: grid; place-items: center; }
.brand .mark svg { width: 18px; height: 18px; }
.brand .word b { color: var(--accent); }
.nav-links { display: flex; gap: 4px; margin-left: 8px; }
.nav-links a { color: var(--ink-2); padding: 8px 12px; border-radius: 8px; font-size: 14.5px; font-weight: 500; }
.nav-links a:hover { background: var(--accent-soft); color: var(--accent); text-decoration: none; }
.nav-cta { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.nav-toggle { display: none; margin-left: auto; background: none; border: 1px solid var(--line); border-radius: 8px; width: 40px; height: 38px; cursor: pointer; }
.nav-toggle span { display: block; width: 18px; height: 2px; background: var(--ink); margin: 3px auto; }

.btn { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; font-size: 14.5px; padding: 10px 18px; border-radius: 9px; border: 1px solid transparent; cursor: pointer; transition: background .15s, transform .05s; }
.btn:hover { text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); color: #fff; }
.btn-ghost { background: #fff; color: var(--accent); border-color: var(--line); }
.btn-ghost:hover { background: var(--accent-soft); }
.btn-lg { padding: 13px 24px; font-size: 16px; }
.btn-white { background: #fff; color: var(--accent); }

/* ---------- hero ---------- */
.hero { background: radial-gradient(1100px 500px at 80% -10%, #e9efff 0%, rgba(255,255,255,0) 60%), linear-gradient(180deg, #fbfcff 0%, #ffffff 100%); border-bottom: 1px solid var(--line); }
.hero-inner { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 50px; align-items: center; padding: 78px 0 70px; }
.eyebrow { display: inline-flex; align-items: center; gap: 7px; font-size: 13px; font-weight: 700; color: var(--accent); background: var(--accent-soft); padding: 6px 13px; border-radius: 99px; letter-spacing: .2px; white-space: nowrap; }
.eyebrow svg { width: 15px; height: 15px; flex: none; }
h1.hero-title { font-size: 52px; line-height: 1.05; letter-spacing: -1.2px; margin: 18px 0 16px; font-weight: 800; }
.hero-sub { font-size: 19px; color: var(--muted); max-width: 36ch; }
.hero-actions { display: flex; gap: 12px; margin-top: 28px; flex-wrap: wrap; }
.hero-note { margin-top: 16px; font-size: 13px; color: var(--muted); }
.hero-art { background: #fff; border: 1px solid var(--line); border-radius: 16px; box-shadow: var(--shadow-lg); overflow: hidden; }
.hero-art .bar { display: flex; gap: 6px; padding: 12px 14px; border-bottom: 1px solid var(--line); background: var(--bg-soft); }
.hero-art .bar i { width: 11px; height: 11px; border-radius: 50%; background: #d6dbe6; display: block; }
.hero-art .doc { padding: 22px; }
.hero-art .line { height: 9px; border-radius: 5px; background: #eef1f7; margin: 9px 0; }
.hero-art .line.s { width: 55%; } .hero-art .line.m { width: 80%; } .hero-art .line.l { width: 95%; }
.hero-art .sigfield { margin-top: 18px; border: 1.5px solid var(--accent); background: var(--accent-soft); border-radius: 8px; padding: 12px 14px; display: flex; align-items: center; justify-content: space-between; }
.hero-art .sigfield .sig { font-family: "Snell Roundhand", "Brush Script MT", cursive; font-size: 26px; color: var(--ink); }
.hero-art .stamp { font-size: 11px; color: var(--green); font-weight: 700; }

/* ---------- trust strip ---------- */
.trust { border-bottom: 1px solid var(--line); background: var(--bg); }
.trust-inner { display: flex; gap: 14px; flex-wrap: wrap; justify-content: center; padding: 22px 0; }
.trust-badge { display: inline-flex; align-items: center; gap: 8px; font-size: 13.5px; font-weight: 600; color: var(--ink-2); background: var(--bg-soft); border: 1px solid var(--line); padding: 8px 14px; border-radius: 99px; }
.trust-badge svg { width: 16px; height: 16px; color: var(--accent); }

/* ---------- sections ---------- */
section { padding: 76px 0; }
.section-head { text-align: center; max-width: 680px; margin: 0 auto 48px; }
.section-head .eyebrow { margin-bottom: 14px; }
h2 { font-size: 36px; line-height: 1.15; letter-spacing: -0.6px; margin: 0 0 14px; font-weight: 800; }
.section-head p { font-size: 18px; color: var(--muted); margin: 0; }
.alt { background: var(--bg-soft); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow); }
.card .ico { width: 44px; height: 44px; border-radius: 11px; background: var(--accent-soft); display: grid; place-items: center; margin-bottom: 16px; }
.card .ico svg { width: 23px; height: 23px; color: var(--accent); }
.card h3 { font-size: 18px; margin: 0 0 8px; }
.card p { color: var(--muted); margin: 0; font-size: 15px; }

/* steps */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; counter-reset: step; }
.step { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; position: relative; }
.step .n { width: 34px; height: 34px; border-radius: 50%; background: var(--accent); color: #fff; font-weight: 800; display: grid; place-items: center; margin-bottom: 14px; }
.step h3 { font-size: 17px; margin: 0 0 6px; }
.step p { color: var(--muted); margin: 0; font-size: 14.5px; }

/* feature list */
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px 30px; }
.feature { display: flex; gap: 12px; align-items: flex-start; padding: 8px 0; }
.feature .chk { flex: none; width: 22px; height: 22px; border-radius: 50%; background: #dff3e7; color: var(--green); display: grid; place-items: center; margin-top: 2px; }
.feature .chk svg { width: 13px; height: 13px; }
.feature b { display: block; font-size: 15px; }
.feature span { color: var(--muted); font-size: 13.5px; }

/* dev / code */
.dev { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; align-items: center; }
.code { background: #0f1424; color: #e7ecf7; border-radius: 14px; overflow: hidden; box-shadow: var(--shadow-lg); font-size: 13.5px; }
.code .chead { display: flex; gap: 6px; padding: 12px 14px; background: #161d33; border-bottom: 1px solid #232c47; }
.code .chead i { width: 10px; height: 10px; border-radius: 50%; background: #39435f; display: block; }
.code pre { margin: 0; padding: 18px 20px; overflow-x: auto; line-height: 1.7; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.code .k { color: #8fb5ff; } .code .s { color: #9ae6b4; } .code .c { color: #7c87a3; } .code .p { color: #f6b873; }

/* CTA band */
.cta { background: linear-gradient(120deg, var(--accent) 0%, #3f6fe0 60%, var(--violet) 130%); color: #fff; border-radius: 20px; padding: 56px; text-align: center; box-shadow: var(--shadow-lg); }
.cta h2 { color: #fff; }
.cta p { color: rgba(255,255,255,.9); font-size: 18px; max-width: 56ch; margin: 0 auto 26px; }

/* ---------- footer ---------- */
.footer { background: #0f1424; color: #c7cfe2; padding: 56px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 30px; }
.footer .brand { color: #fff; }
.footer .brand .word b { color: #9db8ff; }
.footer p { color: #8c97b3; font-size: 14px; max-width: 34ch; }
.footer h4 { color: #fff; font-size: 13px; text-transform: uppercase; letter-spacing: .5px; margin: 0 0 12px; }
.footer a { display: block; color: #b9c2da; font-size: 14px; padding: 5px 0; }
.footer a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid #232c47; margin-top: 40px; padding-top: 22px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; font-size: 13px; color: #8c97b3; }

/* ---------- generic content pages (security, pricing, legal) ---------- */
.page-hero { background: linear-gradient(180deg, #fbfcff, #fff); border-bottom: 1px solid var(--line); padding: 64px 0 40px; text-align: center; }
.page-hero h1 { font-size: 42px; letter-spacing: -1px; margin: 14px 0 12px; font-weight: 800; }
.page-hero p { font-size: 18px; color: var(--muted); max-width: 60ch; margin: 0 auto; }
.prose { max-width: 760px; margin: 0 auto; padding: 50px 0; }
.prose h2 { font-size: 26px; margin: 38px 0 12px; }
.prose h3 { font-size: 18px; margin: 26px 0 8px; }
.prose p, .prose li { color: var(--ink-2); font-size: 16px; }
.prose ul { padding-left: 22px; }
.prose .muted { color: var(--muted); font-size: 14px; }
.callout { background: var(--accent-soft); border: 1px solid #c9d6f3; border-radius: 10px; padding: 16px 18px; font-size: 14.5px; color: var(--ink-2); margin: 22px 0; }
.callout.warn { background: #fff7e6; border-color: #f0dca8; }

/* pricing */
.tiers { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.tier { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; display: flex; flex-direction: column; }
.tier.pop { border-color: var(--accent); box-shadow: var(--shadow-lg); position: relative; }
.tier .tag { position: absolute; top: -12px; left: 50%; transform: translateX(-50%); background: var(--accent); color: #fff; font-size: 11.5px; font-weight: 700; padding: 4px 12px; border-radius: 99px; }
.tier h3 { font-size: 19px; margin: 0 0 4px; }
.tier .price { font-size: 34px; font-weight: 800; margin: 8px 0 2px; }
.tier .price span { font-size: 14px; color: var(--muted); font-weight: 500; }
.tier .desc { color: var(--muted); font-size: 14px; min-height: 40px; }
.tier ul { list-style: none; padding: 0; margin: 16px 0 20px; }
.tier li { font-size: 14px; padding: 6px 0; display: flex; gap: 8px; color: var(--ink-2); }
.tier li svg { width: 16px; height: 16px; color: var(--green); flex: none; margin-top: 2px; }
.tier .btn { margin-top: auto; justify-content: center; }
.matrix { width: 100%; border-collapse: collapse; margin-top: 40px; font-size: 14.5px; }
.matrix th, .matrix td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--line); }
.matrix th { color: var(--muted); font-weight: 600; }
.matrix td.c { text-align: center; }
.matrix svg { width: 16px; height: 16px; color: var(--green); }

/* ---------- docs ---------- */
.docs-layout { display: grid; grid-template-columns: 240px 1fr; gap: 40px; align-items: start; padding: 40px 0 70px; }
.docs-nav { position: sticky; top: 84px; align-self: start; }
.docs-nav h5 { font-size: 12px; text-transform: uppercase; letter-spacing: .5px; color: var(--muted); margin: 18px 0 6px; }
.docs-nav a { display: block; color: var(--ink-2); font-size: 14px; padding: 6px 10px; border-radius: 7px; }
.docs-nav a:hover, .docs-nav a.active { background: var(--accent-soft); color: var(--accent); text-decoration: none; }
.docs-content { max-width: 760px; }
.docs-content h1 { font-size: 34px; letter-spacing: -0.5px; }
.docs-content h2 { font-size: 24px; margin: 44px 0 12px; padding-top: 8px; border-top: 1px solid var(--line); scroll-margin-top: 84px; }
.docs-content h3 { font-size: 17px; margin: 24px 0 8px; }
.docs-content h1, .docs-content h2[id] { scroll-margin-top: 84px; }
.docs-content p, .docs-content li { color: var(--ink-2); font-size: 15.5px; }
.docs-content code { background: var(--bg-soft); border: 1px solid var(--line); border-radius: 5px; padding: 1px 6px; font-size: 13px; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.docs-content pre { background: #0f1424; color: #e7ecf7; border-radius: 10px; padding: 16px 18px; overflow-x: auto; font-size: 13px; line-height: 1.65; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.docs-content pre code { background: none; border: none; color: inherit; padding: 0; }
.docs-content table { width: 100%; border-collapse: collapse; font-size: 14px; margin: 16px 0; }
.docs-content th, .docs-content td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
.docs-content th { color: var(--muted); }
.method { display: inline-block; font-size: 11.5px; font-weight: 800; padding: 2px 8px; border-radius: 5px; margin-right: 6px; }
.method.get { background: #dff3e7; color: var(--green); }
.method.post { background: var(--accent-soft); color: var(--accent); }
.method.put { background: #fff3da; color: var(--amber); }
.method.del { background: #fde3df; color: #c0392b; }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .nav-links, .nav-cta .btn-ghost { display: none; }
  .nav-toggle { display: block; }
  .nav-links.open { display: flex; flex-direction: column; position: absolute; top: 64px; left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--line); padding: 12px; margin: 0; }
  .nav-links.open a { padding: 12px; }
  .hero-inner, .dev { grid-template-columns: 1fr; }
  .hero-art { order: -1; }
  h1.hero-title { font-size: 38px; }
  .grid-3, .steps, .features, .tiers, .footer-grid { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .docs-layout { grid-template-columns: 1fr; }
  .docs-nav { position: static; border-bottom: 1px solid var(--line); padding-bottom: 14px; }
  .cta { padding: 40px 22px; }
  .matrix { font-size: 12.5px; }
}