/* ZuPayments marketing site — self-hosted brand stylesheet (ZUP-402).
   Navy/gold techie-blue identity matching the dashboard rebrand (ZUP-399).
   No CDN, no remote fonts — fully self-contained (perf + reliability). */

:root {
  --bg: #010822;
  --bg-2: #061132;
  --surface: #071633;
  --surface-2: #0e2a5e;
  --border: #16224a;
  --border-soft: #101c3c;
  --accent: #f5a623;        /* brand gold — CTAs */
  --accent-bright: #ffbb3d;
  --accent-contrast: #05122e;
  --accent-2: #6ea8ff;      /* azure — links, highlights */
  --accent-2-strong: #2f6fd6;
  --cyan: #38bdf8;
  --text: #eef2fb;
  --text-dim: #9fb0d0;
  --radius: 12px;
  --radius-lg: 20px;
  --radius-pill: 999px;
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --maxw: 1140px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(1200px 700px at 78% -6%, rgba(47, 111, 214, 0.28), transparent 60%),
    radial-gradient(900px 600px at 10% 8%, rgba(14, 42, 94, 0.5), transparent 55%),
    var(--bg);
  -webkit-font-smoothing: antialiased;
  line-height: 1.55;
}
.mono { font-family: var(--mono); }
a { color: var(--accent-2); text-decoration: none; }
a:hover { color: #a9c8ff; }
h1, h2, h3 { margin: 0; letter-spacing: -0.02em; line-height: 1.1; }
p { margin: 0; }
img { max-width: 100%; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; border-top: 1px solid var(--border-soft); position: relative; }
.eyebrow { font-family: var(--mono); font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent-2); }
.h2 { font-size: clamp(28px, 4vw, 40px); font-weight: 800; margin-top: 12px; }
.lead { color: var(--text-dim); font-size: 16px; max-width: 640px; }
.text-gold { color: var(--accent); }
.text-azure { color: var(--accent-2); }
.gradient-text {
  background: linear-gradient(95deg, #fff 10%, var(--accent-2) 55%, var(--cyan) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* Nav */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(1, 8, 34, 0.72);
  border-bottom: 1px solid var(--border-soft);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 14px 0; }
.nav-logo { height: 26px; width: auto; display: block; }
.nav-links { display: flex; gap: 26px; align-items: center; }
.nav-links a { color: var(--text-dim); font-size: 14px; font-weight: 500; }
.nav-links a:hover { color: #fff; }
.nav-cta { display: flex; gap: 10px; align-items: center; }
@media (max-width: 860px) { .nav-links { display: none; } }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-weight: 600; font-size: 14px; border-radius: var(--radius-pill);
  padding: 11px 22px; cursor: pointer; border: 1px solid transparent;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.btn-primary {
  background: var(--accent); color: var(--accent-contrast);
  box-shadow: 0 0 0 1px rgba(245,166,35,.4), 0 12px 30px -8px rgba(245,166,35,.5);
}
.btn-primary:hover { background: var(--accent-bright); transform: translateY(-1px); box-shadow: 0 0 0 1px rgba(245,166,35,.7), 0 18px 40px -6px rgba(245,166,35,.6); color: var(--accent-contrast); }
.btn-ghost { background: transparent; border-color: var(--border); color: var(--text); }
.btn-ghost:hover { border-color: rgba(255,255,255,.35); background: rgba(255,255,255,.03); color: #fff; }

/* Hero */
.hero { padding: 90px 0 40px; }
.badge-pill {
  display: inline-flex; align-items: center; gap: 8px;
  border: 1px solid var(--border); background: rgba(110,168,255,.06);
  border-radius: var(--radius-pill); padding: 6px 14px; font-size: 13px; color: var(--text-dim);
}
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent-2); box-shadow: 0 0 10px var(--accent-2); }
.hero h1 { font-size: clamp(38px, 6vw, 60px); font-weight: 800; margin-top: 22px; }
.hero .lead { margin-top: 18px; font-size: 18px; }
.hero-cta { margin-top: 30px; display: flex; gap: 12px; flex-wrap: wrap; }

/* Cards */
.grid { display: grid; gap: 20px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 900px) { .grid-3, .grid-2 { grid-template-columns: 1fr; } }
.card {
  background: linear-gradient(180deg, var(--surface-2), var(--surface));
  border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 26px;
  transition: transform .35s ease, border-color .35s ease, box-shadow .35s ease;
}
.card:hover { transform: translateY(-4px); border-color: rgba(47,111,214,.5); box-shadow: 0 20px 60px -20px rgba(47,111,214,.28); }
.card .icon { width: 42px; height: 42px; border-radius: var(--radius); background: rgba(110,168,255,.1); border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; margin-bottom: 16px; }
.card h3 { font-size: 16px; font-weight: 600; }
.card p { color: var(--text-dim); font-size: 14px; margin-top: 8px; }

/* Steps / lists */
.step { display: flex; gap: 16px; padding: 18px 0; border-bottom: 1px solid var(--border-soft); }
.step-n { font-family: var(--mono); color: var(--accent-2); font-size: 13px; width: 30px; flex-shrink: 0; }
.check { color: var(--accent-2); flex-shrink: 0; }
.li { display: flex; gap: 10px; align-items: flex-start; margin: 10px 0; color: var(--text-dim); font-size: 14px; }

/* Code block */
.codeblock {
  background: #030c26; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px 20px; font-family: var(--mono); font-size: 13px; color: var(--text-dim);
  overflow-x: auto; line-height: 1.7;
}
.codeblock .k { color: var(--accent-2); }
.codeblock .v { color: var(--accent); }

/* Multi-line code sample (developer pages) — preserves whitespace, scrolls. */
pre.code {
  background: #030c26; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px 20px; margin: 14px 0; overflow-x: auto;
  font-family: var(--mono); font-size: 13px; line-height: 1.65; color: #cfe0ff;
}
pre.code .cmt { color: var(--text-dim); }
pre.code .tok { color: var(--accent-2); }
.method { display: inline-block; font-family: var(--mono); font-size: 12px; font-weight: 700;
  padding: 2px 8px; border-radius: 6px; margin-right: 8px; letter-spacing: .03em; }
.method.post { background: rgba(110,168,255,.16); color: #9fc4ff; }
.method.get { background: rgba(56,189,248,.14); color: #7dd3fc; }
.endpoint { font-family: var(--mono); font-size: 14px; color: var(--text); }
.note { border-left: 3px solid var(--accent); background: rgba(245,166,35,.06);
  padding: 12px 16px; border-radius: 0 8px 8px 0; margin: 16px 0; color: var(--text-dim); font-size: 14px; }
.doc table { width: 100%; border-collapse: collapse; margin: 14px 0; font-size: 14px; }
.doc table th, .doc table td { border: 1px solid var(--border); padding: 8px 12px; text-align: left; vertical-align: top; }
.doc table th { background: var(--surface); color: var(--text); font-weight: 600; }
.doc table tr:nth-child(even) td { background: rgba(7,22,51,.4); }
.doc table code { background: rgba(110,168,255,.12); }

/* Pricing */
.price { font-size: 40px; font-weight: 800; }
.price small { font-size: 15px; color: var(--text-dim); font-weight: 500; }
.card-featured { border-color: rgba(245,166,35,.4); box-shadow: 0 0 0 1px rgba(245,166,35,.15), 0 30px 80px -30px rgba(245,166,35,.2); }

/* FAQ */
.faq { border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; margin-bottom: 12px; background: var(--surface); }
.faq summary { padding: 18px 20px; font-weight: 500; cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--accent-2); font-size: 20px; }
.faq[open] summary::after { content: "\2212"; }
.faq p { padding: 0 20px 18px; color: var(--text-dim); font-size: 14px; }

/* Footer */
.footer { border-top: 1px solid var(--border-soft); padding: 64px 0 40px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr repeat(4, 1fr); gap: 32px; }
@media (max-width: 860px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
.footer h4 { font-size: 12px; text-transform: uppercase; letter-spacing: .08em; color: var(--text-dim); margin-bottom: 14px; }
.footer ul { list-style: none; padding: 0; margin: 0; }
.footer li { margin: 9px 0; }
.footer li a { color: var(--text-dim); font-size: 14px; }
.footer li a:hover { color: #fff; }
.footer-logo { height: 26px; margin-bottom: 14px; }
.footer-bottom { margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--border-soft); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; color: var(--text-dim); font-size: 13px; }

/* Stat row */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
@media (max-width: 900px) { .stats { grid-template-columns: repeat(2,1fr); } }
.stat .n { font-size: 30px; font-weight: 800; }
.stat .l { color: var(--text-dim); font-size: 13px; margin-top: 4px; }

/* Doc/legal page body */
.doc { max-width: 820px; }
.doc h1 { font-size: 36px; font-weight: 800; margin-bottom: 8px; }
.doc h2 { font-size: 22px; font-weight: 700; margin: 36px 0 12px; }
.doc h3 { font-size: 17px; font-weight: 600; margin: 24px 0 8px; }
.doc p, .doc li { color: var(--text-dim); font-size: 15px; margin: 12px 0; }
.doc ul { padding-left: 20px; }
.doc code { font-family: var(--mono); background: rgba(110,168,255,.12); padding: 1px 6px; border-radius: 4px; font-size: 13px; color: var(--text); }
.doc .pill { display:inline-block; font-family: var(--mono); font-size: 12px; padding: 3px 10px; border-radius: var(--radius-pill); border:1px solid var(--border); color: var(--accent-2); }

.center { text-align: center; }
.mt-s { margin-top: 12px; } .mt-m { margin-top: 24px; } .mt-l { margin-top: 40px; }

/* Utility classes — replace inline style attributes so the site can keep a
   strict `style-src 'self'` CSP (inline style attributes cannot be CSP-hashed). */
.mx-auto { margin-inline: auto; }
.strong-white { color: #fff; font-weight: 600; }
.o-70 { opacity: 0.7; }
.mw-760 { max-width: 760px; }
.mw-820 { max-width: 820px; }
.items-start { align-items: start; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.gap-14 { gap: 14px; }
.mt-6 { margin-top: 6px; }
.fs-13 { font-size: 13px; }
.fs-145 { font-size: 14.5px; }
.card-tight { padding: 18px; }
.code-arrow { margin-top: 10px; color: var(--accent-2); }
.btn-block { width: 100%; justify-content: center; margin-top: 22px; }
.footer-tagline { color: var(--text-dim); font-size: 14px; max-width: 280px; }
.step-desc { color: var(--text-dim); font-size: 14px; margin-top: 4px; }
.pricing-cols { max-width: 820px; margin-inline: auto; text-align: left; }