/* zKYC marketing site. Vanilla CSS, no build step.
   Light-first with a dark theme via [data-theme="dark"]. All surfaces use tokens. */
:root {
  --bg: #FBFBFE;
  --bg-soft: #F3F3FA;
  --bg-card: #FFFFFF;
  --nav-bg: rgba(251, 251, 254, 0.84);
  --footer-bg: #FFFFFF;
  --violet: #6F4BFF;
  --violet-deep: #4A2FD6;
  --violet-soft: rgba(111, 75, 255, 0.08);
  --violet-line: rgba(111, 75, 255, 0.28);
  --ink: #101418;
  --text: #101418;
  --muted: #556074;
  --muted-dim: #8B94A7;
  --hairline: rgba(16, 20, 28, 0.09);
  --shadow-sm: 0 1px 2px rgba(16, 20, 28, 0.05), 0 4px 16px rgba(16, 20, 28, 0.05);
  --shadow-md: 0 2px 6px rgba(16, 20, 28, 0.06), 0 16px 40px rgba(16, 20, 28, 0.08);
  --glow-opacity: 1;
  --radius: 16px;
  --radius-sm: 12px;
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --max: 1120px;
}

[data-theme="dark"] {
  --bg: #0A0E14;
  --bg-soft: #0D131C;
  --bg-card: #111824;
  --nav-bg: rgba(10, 14, 20, 0.78);
  --footer-bg: #0C1119;
  --violet: #8B70FF;
  --violet-deep: #6F4BFF;
  --violet-soft: rgba(139, 112, 255, 0.13);
  --violet-line: rgba(139, 112, 255, 0.38);
  --ink: #FFFFFF;
  --text: #EDEFF5;
  --muted: #9AA4B8;
  --muted-dim: #6B7488;
  --hairline: rgba(255, 255, 255, 0.09);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 16px 44px rgba(0, 0, 0, 0.5);
  --glow-opacity: 1.6;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background 0.3s ease, color 0.3s ease;
}

::selection { background: rgba(111, 75, 255, 0.22); }

a { color: inherit; text-decoration: none; }
img { max-width: 100%; }

.container { max-width: var(--max); margin: 0 auto; padding: 0 24px; }
section[id], h2[id], h3[id] { scroll-margin-top: 92px; }

/* ---------- Type ---------- */
h1, h2, h3 { line-height: 1.15; letter-spacing: -0.025em; font-weight: 800; color: var(--ink); }
h1 { font-size: clamp(2.5rem, 5.2vw, 4.1rem); margin-bottom: 20px; }
h2 { font-size: clamp(1.75rem, 3.4vw, 2.5rem); margin-bottom: 16px; }
h3 { font-size: 1.15rem; margin-bottom: 8px; }
p { color: var(--muted); margin-bottom: 16px; }
p:last-child { margin-bottom: 0; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.78rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--violet); margin-bottom: 18px;
}
.eyebrow::before {
  content: ""; width: 7px; height: 7px; border-radius: 50%;
  background: var(--violet);
}

.lead { font-size: 1.15rem; max-width: 640px; }
.grad { background: linear-gradient(100deg, var(--violet), var(--violet-deep)); -webkit-background-clip: text; background-clip: text; color: transparent; }

.notice {
  background: var(--violet-soft); border: 1px solid var(--violet-line);
  border-radius: var(--radius-sm); padding: 16px 20px; font-size: 0.92rem;
  color: var(--muted); margin: 0 0 24px;
}
.notice strong { color: var(--ink); }

/* ---------- Nav ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  background: var(--nav-bg);
  border-bottom: 1px solid var(--hairline);
  transition: box-shadow 0.25s ease, background 0.3s ease;
}
.nav.scrolled { box-shadow: 0 6px 24px rgba(16, 20, 28, 0.1); }
.nav-inner { max-width: var(--max); margin: 0 auto; padding: 0 24px; height: 68px; display: flex; align-items: center; justify-content: space-between; }

/* Wordmark: one tight unit, no loose gap between z and KYC */
.logo { display: inline-flex; align-items: center; }
.wordmark { font-weight: 800; font-size: 1.28rem; letter-spacing: -0.045em; line-height: 1; padding-right: 0.06em; color: var(--ink); white-space: nowrap; }
.logo-z { color: var(--violet); }

.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links a { padding: 8px 14px; border-radius: 999px; font-size: 0.93rem; color: var(--muted); transition: color 0.2s, background 0.2s; font-weight: 500; }
.nav-links a:hover { color: var(--ink); background: rgba(127, 127, 160, 0.12); }
.nav-links a.active { color: var(--ink); }
.nav-cta { display: flex; align-items: center; gap: 10px; }

.theme-toggle {
  width: 40px; height: 40px; border-radius: 50%; flex: none;
  border: 1px solid var(--hairline); background: var(--bg-card);
  color: var(--muted); cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
  transition: color 0.2s, border-color 0.2s, transform 0.2s;
}
.theme-toggle:hover { color: var(--ink); border-color: var(--violet-line); transform: translateY(-1px); }
.theme-toggle svg { width: 17px; height: 17px; }
.theme-toggle .icon-sun { display: none; }
[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }

.hamburger { display: none; background: var(--bg-card); border: 1px solid var(--hairline); border-radius: 10px; width: 42px; height: 42px; cursor: pointer; flex-direction: column; align-items: center; justify-content: center; gap: 5px; }
.hamburger span { display: block; width: 18px; height: 2px; background: var(--ink); border-radius: 2px; transition: transform 0.25s, opacity 0.25s; }
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 28px; border-radius: 999px; font-weight: 600; font-size: 0.95rem;
  border: 1px solid transparent; cursor: pointer; transition: transform 0.18s, box-shadow 0.18s, background 0.18s, border-color 0.18s;
  white-space: nowrap;
}
.btn-primary { background: var(--ink); color: var(--bg); box-shadow: 0 6px 20px rgba(111, 75, 255, 0.28); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(111, 75, 255, 0.38); }
.btn-primary:active { transform: translateY(0) scale(0.98); }
.btn-ghost { background: var(--bg-card); border-color: var(--hairline); color: var(--ink); box-shadow: var(--shadow-sm); }
.btn-ghost:hover { transform: translateY(-2px); border-color: var(--violet-line); }
.btn-ghost:active { transform: translateY(0) scale(0.98); }
.btn-sm { padding: 9px 20px; font-size: 0.88rem; }
.btn:focus-visible, a:focus-visible, button:focus-visible { outline: 2px solid var(--violet); outline-offset: 3px; }

[data-theme="dark"] .btn-primary {
  background: linear-gradient(135deg, #8B70FF, #6F4BFF); color: #fff;
  box-shadow: 0 4px 24px rgba(139, 112, 255, 0.4);
}
[data-theme="dark"] .btn-ghost { background: rgba(255, 255, 255, 0.05); }

/* ---------- Hero ---------- */
.hero { position: relative; padding: 168px 0 90px; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: var(--glow-opacity);
  background:
    radial-gradient(640px 340px at 18% 6%, rgba(111, 75, 255, 0.12), transparent 65%),
    radial-gradient(560px 320px at 85% 18%, rgba(111, 75, 255, 0.08), transparent 65%);
}
.hero-inner { position: relative; text-align: center; max-width: 820px; margin: 0 auto; }
.hero-ctas { display: flex; gap: 14px; justify-content: center; margin: 30px 0 22px; flex-wrap: wrap; }
.micro-trust { font-size: 0.88rem; color: var(--muted-dim); }
.micro-trust strong { color: var(--muted); font-weight: 600; }

/* ---------- Flow diagram ---------- */
.flow { margin: 72px auto 0; max-width: 900px; }
.flow-track { display: flex; align-items: stretch; gap: 0; }
.flow-node {
  flex: 1; background: var(--bg-card); border: 1px solid var(--hairline);
  border-radius: var(--radius); padding: 28px 20px; text-align: center; position: relative;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.25s, transform 0.25s, box-shadow 0.25s;
}
.flow-node:hover { border-color: var(--violet-line); transform: translateY(-3px); box-shadow: var(--shadow-md); }
.flow-num {
  width: 40px; height: 40px; border-radius: 50%; margin: 0 auto 14px;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 1rem; color: #fff;
  background: linear-gradient(135deg, var(--violet), var(--violet-deep));
  box-shadow: 0 4px 14px rgba(111, 75, 255, 0.4);
}
.flow-node h3 { margin-bottom: 8px; font-size: 1.05rem; }
.flow-node p { font-size: 0.88rem; margin: 0; }
.flow-link { flex: 0 0 72px; position: relative; align-self: center; height: 2px; margin: 0 6px;
  background: var(--hairline); border-radius: 2px; overflow: hidden; }
.flow-link::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, transparent, var(--violet), transparent);
  animation: sweep 2.6s ease-in-out infinite;
}
@keyframes sweep { 0% { transform: translateX(-100%); } 100% { transform: translateX(100%); } }

/* ---------- Sections ---------- */
.section { padding: 96px 0; position: relative; }
.section-alt { background: var(--bg-soft); }
.section-head { max-width: 720px; margin-bottom: 52px; }
.section-head.center { text-align: center; margin-left: auto; margin-right: auto; }

/* ---------- Cards / grids ---------- */
.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.card {
  background: var(--bg-card); border: 1px solid var(--hairline); border-radius: var(--radius);
  padding: 30px 28px; transition: transform 0.22s, border-color 0.22s, box-shadow 0.22s;
  position: relative; overflow: hidden; box-shadow: var(--shadow-sm);
}
.card:hover { transform: translateY(-4px); border-color: var(--violet-line); box-shadow: var(--shadow-md); }
.card-icon {
  width: 44px; height: 44px; border-radius: 12px; margin-bottom: 18px;
  display: flex; align-items: center; justify-content: center;
  background: var(--violet-soft); border: 1px solid var(--violet-line); color: var(--violet);
}
.card-icon svg { width: 22px; height: 22px; }
.card h3 { margin-bottom: 10px; }
.card p { font-size: 0.94rem; margin: 0; }
.card ul { list-style: none; margin-top: 12px; }
.card ul li { font-size: 0.92rem; color: var(--muted); padding: 6px 0 6px 22px; position: relative; }
.card ul li::before { content: "→"; position: absolute; left: 0; color: var(--violet); }

/* ---------- Split / teaser rows ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.split h2 { margin-bottom: 16px; }
.link-arrow { display: inline-flex; align-items: center; gap: 8px; color: var(--violet); font-weight: 600; font-size: 0.95rem; margin-top: 14px; transition: gap 0.2s; }
.link-arrow:hover { gap: 12px; }

/* ---------- Stats bar ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; padding: 44px 0; border-top: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline); margin: 24px 0 0; }
.stat { text-align: center; }
.stat-num { font-size: 2rem; font-weight: 800; letter-spacing: -0.02em; color: var(--ink); }
.stat-label { font-size: 0.85rem; color: var(--muted); margin-top: 6px; }

/* ---------- Pricing ---------- */
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; align-items: stretch; }
.tier {
  background: var(--bg-card); border: 1px solid var(--hairline); border-radius: var(--radius);
  padding: 36px 30px; display: flex; flex-direction: column; position: relative;
  box-shadow: var(--shadow-sm);
  transition: transform 0.22s, border-color 0.22s, box-shadow 0.22s;
}
.tier:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.tier.featured {
  border: 1.5px solid var(--violet);
  background: linear-gradient(180deg, var(--violet-soft), transparent 65%);
  box-shadow: 0 16px 44px rgba(111, 75, 255, 0.16);
}
.tier-badge {
  position: absolute; top: -13px; left: 50%; transform: translateX(-50%);
  background: var(--ink); color: var(--bg);
  font-size: 0.72rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
  padding: 5px 16px; border-radius: 999px; white-space: nowrap;
}
.tier-name { font-size: 1.05rem; font-weight: 700; margin-bottom: 6px; }
.tier-price { font-size: 2.2rem; font-weight: 800; letter-spacing: -0.02em; margin: 8px 0 4px; color: var(--ink); }
.tier-price span { font-size: 0.95rem; font-weight: 500; color: var(--muted); }
.tier-desc { font-size: 0.9rem; color: var(--muted); margin-bottom: 20px; }
.tier ul { list-style: none; margin: 0 0 28px; flex: 1; }
.tier ul li { font-size: 0.92rem; color: var(--muted); padding: 7px 0 7px 26px; position: relative; border-bottom: 1px solid var(--hairline); }
.tier ul li:last-child { border-bottom: none; }
.tier ul li::before { content: "✓"; position: absolute; left: 2px; color: var(--violet); font-weight: 700; }
.pricing-note { text-align: center; color: var(--muted-dim); font-size: 0.88rem; margin-top: 28px; }

/* ---------- Comparison table ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--hairline); border-radius: var(--radius); background: var(--bg-card); box-shadow: var(--shadow-sm); }
table.compare { width: 100%; border-collapse: collapse; font-size: 0.94rem; min-width: 560px; }
table.compare.wide { min-width: 1020px; font-size: 0.88rem; }
table.compare.wide th, table.compare.wide td { padding: 14px 14px; }
table.compare th, table.compare td { padding: 16px 20px; text-align: left; border-bottom: 1px solid var(--hairline); }
table.compare tr:last-child th, table.compare tr:last-child td { border-bottom: none; }
table.compare th { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.07em; color: var(--muted-dim); font-weight: 700; }
table.compare td:first-child { color: var(--muted); font-weight: 600; white-space: nowrap; }
table.compare td.hl { color: var(--ink); background: var(--violet-soft); font-weight: 600; }
table.compare th.hl { color: var(--violet); }

/* ---------- Code blocks (always dark for contrast) ---------- */
.codeblock { position: relative; background: #101418; border: 1px solid #1E242E; border-radius: var(--radius-sm); margin: 20px 0; overflow: hidden; }
.codeblock pre { padding: 22px; overflow-x: auto; font-family: "SF Mono", ui-monospace, Menlo, Consolas, monospace; font-size: 0.85rem; line-height: 1.7; color: #C9D4E3; }
.codeblock .lang { position: absolute; top: 12px; right: 64px; font-size: 0.72rem; color: #8B94A7; text-transform: uppercase; letter-spacing: 0.08em; }
.copy-btn {
  position: absolute; top: 10px; right: 10px; background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.14); color: #C9D4E3; border-radius: 8px;
  font-size: 0.75rem; font-weight: 600; padding: 6px 12px; cursor: pointer; transition: all 0.2s;
}
.copy-btn:hover { color: #fff; background: rgba(255,255,255,0.16); }
.copy-btn.copied { color: #8B70FF; border-color: rgba(139, 112, 255, 0.5); }

/* ---------- FAQ accordion ---------- */
.faq { max-width: 760px; margin: 0 auto; }
.faq-item { border: 1px solid var(--hairline); border-radius: var(--radius-sm); margin-bottom: 12px; background: var(--bg-card); overflow: hidden; transition: border-color 0.2s; box-shadow: var(--shadow-sm); }
.faq-item.open { border-color: var(--violet-line); }
.faq-q { width: 100%; background: none; border: none; color: var(--ink); font-family: var(--font); font-size: 1rem; font-weight: 600; text-align: left; padding: 20px 22px; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.faq-q .plus { flex: none; width: 28px; height: 28px; border-radius: 50%; border: 1px solid var(--violet-line); display: flex; align-items: center; justify-content: center; font-size: 1.1rem; color: var(--violet); transition: transform 0.3s; background: var(--violet-soft); }
.faq-item.open .plus { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.35s ease; }
.faq-a p { padding: 0 22px 22px; font-size: 0.94rem; margin: 0; }

/* ---------- CTA band ---------- */
.cta-band {
  border: 1px solid var(--violet-line); border-radius: 20px; padding: 68px 40px;
  text-align: center; position: relative; overflow: hidden;
  background: linear-gradient(180deg, var(--violet-soft), transparent 80%);
}
.cta-band::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: var(--glow-opacity);
  background: radial-gradient(500px 240px at 50% 0%, rgba(111, 75, 255, 0.14), transparent 70%);
}
.cta-band h2 { position: relative; margin-bottom: 14px; }
.cta-band p { position: relative; max-width: 560px; margin: 0 auto 28px; }
.cta-band .hero-ctas { position: relative; margin: 0; }

/* ---------- Footer ---------- */
footer { border-top: 1px solid var(--hairline); padding: 64px 0 32px; margin-top: 48px; background: var(--footer-bg); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 48px; }
.footer-brand p { font-size: 0.88rem; margin-top: 14px; max-width: 280px; }
.footer-col h4 { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted-dim); margin-bottom: 16px; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 10px; }
.footer-col a { font-size: 0.9rem; color: var(--muted); transition: color 0.2s; }
.footer-col a:hover { color: var(--ink); }
.footer-bottom { border-top: 1px solid var(--hairline); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; font-size: 0.82rem; color: var(--muted-dim); }
.footer-bottom .marks { display: flex; gap: 20px; }

/* ---------- Lists ---------- */
.check-list { list-style: none; margin: 18px 0; }
.check-list li { padding: 10px 0 10px 32px; position: relative; color: var(--muted); font-size: 0.96rem; border-bottom: 1px solid var(--hairline); }
.check-list li:last-child { border-bottom: none; }
.check-list li::before { content: "✓"; position: absolute; left: 4px; color: var(--violet); font-weight: 700; }
.num-list { list-style: none; counter-reset: n; margin: 18px 0; }
.num-list li { counter-increment: n; padding: 12px 0 12px 48px; position: relative; color: var(--muted); border-bottom: 1px solid var(--hairline); }
.num-list li:last-child { border-bottom: none; }
.num-list li::before {
  content: counter(n); position: absolute; left: 0; top: 10px; width: 32px; height: 32px;
  border-radius: 50%; background: var(--violet-soft); border: 1px solid var(--violet-line);
  color: var(--violet); font-weight: 700; font-size: 0.85rem;
  display: flex; align-items: center; justify-content: center;
}

/* ---------- Data flow diagram (security) ---------- */
.dataflow { display: flex; align-items: stretch; gap: 0; margin: 40px 0; }
.df-node { flex: 1; border: 1px solid var(--hairline); border-radius: var(--radius-sm); background: var(--bg-card); padding: 22px 18px; text-align: center; box-shadow: var(--shadow-sm); }
.df-node h4 { font-size: 0.95rem; margin-bottom: 8px; }
.df-node p { font-size: 0.82rem; margin: 0; }
.df-node.discard { border-color: rgba(220, 80, 80, 0.4); background: rgba(220, 80, 80, 0.06); }
.df-node.keep { border-color: var(--violet-line); background: var(--violet-soft); }
.df-link { flex: 0 0 44px; align-self: center; text-align: center; color: var(--muted-dim); font-size: 1.2rem; }
.df-branch { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 4px; }
.df-label { text-align: center; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted-dim); margin: 18px 0 10px; }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .flow-link::after { animation: none; }
  html { scroll-behavior: auto; }
}

/* ---------- Legal ---------- */
.legal-body { max-width: 760px; }
.legal-body h2 { font-size: 1.4rem; margin: 40px 0 12px; }
.legal-body p, .legal-body li { font-size: 0.96rem; }
.legal-body ul { margin: 12px 0 16px 20px; color: var(--muted); }
.updated { font-size: 0.85rem; color: var(--muted-dim); margin-bottom: 32px; }

/* ---------- 404 ---------- */
.center-page { min-height: 70vh; display: flex; align-items: center; justify-content: center; text-align: center; padding: 120px 24px 80px; }
.center-page h1 { font-size: clamp(3rem, 8vw, 5rem); }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .pricing-grid { grid-template-columns: 1fr; max-width: 520px; margin: 0 auto; }
  .split { grid-template-columns: 1fr; gap: 32px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); gap: 32px; }
}
@media (max-width: 760px) {
  .nav-links, .nav-cta .btn { display: none; }
  .hamburger { display: flex; }
  .theme-toggle { display: inline-flex; }
  .nav-links.mobile-open {
    display: flex; position: absolute; top: 68px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 4px; padding: 16px 24px 24px;
    background: var(--bg); border-bottom: 1px solid var(--hairline);
  }
  .nav-links.mobile-open a { padding: 12px 8px; font-size: 1rem; }
  .nav-links.mobile-open .btn { display: inline-flex; margin-top: 8px; justify-content: center; }
  .flow-track { flex-direction: column; }
  .flow-link { flex: none; width: 2px; height: 44px; margin: 6px auto; align-self: center; }
  .flow-link::after { background: linear-gradient(180deg, transparent, var(--violet), transparent); }
  @keyframes sweep { 0% { transform: translateY(-100%); } 100% { transform: translateY(100%); } }
  .dataflow { flex-direction: column; }
  .df-link { transform: rotate(90deg); margin: 2px auto; flex: none; height: 40px; display: flex; align-items: center; }
  .df-branch { grid-template-columns: 1fr; }
  .hero { padding: 140px 0 70px; }
  .section { padding: 72px 0; }
  .grid-2 { grid-template-columns: 1fr; }
  .cta-band { padding: 48px 24px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}
@media (max-width: 560px) {
  .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .hero-ctas .btn { width: 100%; }
}

/* Maintenance banner: shown while the verification engine is being rebuilt */
.maintenance-banner {
  background: linear-gradient(90deg, #4A2FD6, #6F4BFF);
  color: #fff;
  font-size: 0.86rem;
  line-height: 1.45;
}
.maintenance-banner-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0.65rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  text-align: center;
}
.maintenance-banner svg { width: 1.05rem; height: 1.05rem; flex: none; opacity: 0.9; }
.maintenance-banner p { margin: 0; }
.maintenance-banner strong { font-weight: 700; }
@media (max-width: 640px) {
  .maintenance-banner { font-size: 0.8rem; }
  .maintenance-banner-inner { padding: 0.6rem 1rem; }
}

/* Numbered steps (docs quickstart) */
.steps-list { list-style: none; margin: 18px 0; padding: 0; counter-reset: step; }
.steps-list li { counter-increment: step; padding: 12px 0 12px 44px; position: relative; color: var(--muted); font-size: 0.96rem; border-bottom: 1px solid var(--hairline); }
.steps-list li:last-child { border-bottom: none; }
.steps-list li::before { content: counter(step); position: absolute; left: 0; top: 10px; width: 28px; height: 28px; border-radius: 50%; background: var(--violet-soft); color: var(--violet-deep); font-weight: 700; font-size: 0.85rem; display: flex; align-items: center; justify-content: center; }
.steps-list li strong { color: var(--text); }