:root {
  --bg: #ffffff;
  --wash: #f5f7fb;
  --ink: #0f172a;
  --muted: #5c6578;
  --line: #e7ebf3;
  --card: #ffffff;
  --blue: #2563eb;
  --blue-2: #1d4ed8;
  --blue-soft: #eef3ff;
  --ok: #059669;
  --ok-soft: #ecfdf5;
  --bad: #dc2626;
  --bad-soft: #fef2f2;
  --warn: #d97706;
  --warn-soft: #fffbeb;
  --font: "Inter", system-ui, sans-serif;
  --display: "Outfit", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body.public {
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}
a { color: var(--blue); }
.wrap { width: min(1120px, calc(100% - 2.4rem)); margin: 0 auto; }

.site-nav {
  position: sticky; top: 0; z-index: 20;
  display: flex; justify-content: space-between; align-items: center;
  padding: 1rem 6vw;
  background: rgba(255,255,255,.86);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
}
.site-nav nav { display: flex; gap: 1.25rem; align-items: center; }
.site-nav nav a { color: var(--muted); text-decoration: none; font-size: .95rem; font-weight: 500; }
.site-nav nav a:hover { color: var(--ink); }
.brand, .site-nav .logo {
  display: flex; gap: .65rem; align-items: center;
  font-family: var(--display); font-weight: 700; font-size: 1.15rem;
  color: var(--ink); text-decoration: none; letter-spacing: -.03em;
}
.logo-img { height: 28px; width: auto; max-width: 140px; object-fit: contain; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--blue); color: #fff !important; text-decoration: none;
  padding: .78rem 1.2rem; border-radius: 999px; font-weight: 600;
  border: 0; font: inherit; cursor: pointer; box-shadow: 0 8px 20px rgba(37,99,235,.22);
}
.btn:hover { background: var(--blue-2); }
.btn-sm { padding: .42rem .9rem; font-size: .88rem; box-shadow: none; }
.ghost {
  color: var(--ink); text-decoration: none; padding: .75rem 1.1rem;
  border: 1px solid var(--line); border-radius: 999px; background: #fff;
}
.ghost:hover { border-color: #c9d3e4; }

.hero {
  padding: 4.8rem 6vw 3.2rem;
  display: grid; grid-template-columns: 1.05fr .95fr; gap: 3.5rem; align-items: center;
  background:
    radial-gradient(900px 420px at 90% -10%, #dbe7ff 0%, transparent 60%),
    linear-gradient(#fff, var(--wash));
}
.kicker {
  display: inline-block; margin: 0 0 1rem;
  background: var(--blue-soft); color: var(--blue);
  font-size: .78rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  padding: .35rem .7rem; border-radius: 999px;
}
.hero h1 {
  font-family: var(--display);
  font-size: clamp(2.6rem, 5.5vw, 4.4rem);
  line-height: 1.04; font-weight: 650; letter-spacing: -.045em;
  margin: 0 0 1rem;
}
.hero h1 span { color: var(--blue); }
.hero > div > p { font-size: 1.12rem; color: var(--muted); max-width: 34rem; margin: 0; }
.hero-actions { display: flex; gap: .7rem; margin-top: 1.7rem; flex-wrap: wrap; }
.pills { display: flex; gap: .5rem; flex-wrap: wrap; margin-top: 1.6rem; }
.pills span {
  background: #fff; border: 1px solid var(--line); border-radius: 999px;
  padding: .35rem .7rem; font-size: .82rem; color: var(--muted);
}

.pay-mock {
  background: #fff; border: 1px solid var(--line); border-radius: 24px;
  padding: 1.4rem; box-shadow: 0 30px 60px rgba(15,23,42,.08);
}
.pay-mock .top {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 1rem; color: var(--muted); font-size: .82rem;
}
.pay-mock .amt {
  font-family: var(--display); font-size: 2.6rem; font-weight: 700;
  letter-spacing: -.04em; margin: .2rem 0 1rem;
}
.qr-box {
  width: 168px; height: 168px; margin: 0 auto 1rem;
  border-radius: 16px; background:
    repeating-conic-gradient(#0f172a 0% 25%, #fff 0% 50%) 0 0 / 16px 16px;
  outline: 8px solid #f3f6fb; outline-offset: 6px;
}
.pay-mock .meta { display: grid; gap: .45rem; font-family: var(--mono); font-size: .82rem; }
.pay-mock .meta div { display: flex; justify-content: space-between; padding: .4rem 0; border-top: 1px solid var(--line); }
.chip {
  background: var(--ok-soft); color: var(--ok); font-weight: 700;
  padding: .2rem .55rem; border-radius: 999px; font-size: .75rem;
}

.trust { padding: 1.2rem 6vw 2.4rem; color: var(--muted); font-size: .9rem; }
.trust ul { display: flex; gap: 1.6rem; flex-wrap: wrap; list-style: none; padding: 0; margin: .6rem 0 0; }
.trust li { color: var(--ink); font-weight: 600; }

.section { padding: 3.4rem 6vw; }
.section.alt { background: var(--wash); }
.section h2 {
  font-family: var(--display); font-size: clamp(1.7rem, 3vw, 2.3rem);
  letter-spacing: -.035em; margin: 0 0 .4rem;
}
.lede { color: var(--muted); max-width: 36rem; margin: 0 0 1.8rem; }

.bento {
  display: grid; grid-template-columns: 1.2fr 1fr 1fr; grid-template-rows: auto auto; gap: 1rem;
}
.bento article {
  background: var(--card); border: 1px solid var(--line); border-radius: 20px; padding: 1.3rem 1.35rem;
}
.bento .wide { grid-column: 1 / 2; grid-row: 1 / 3; background: var(--blue-soft); border-color: #d7e3ff; }
.bento h3 { font-family: var(--display); margin: 0 0 .4rem; letter-spacing: -.02em; }
.bento p { color: var(--muted); margin: 0; }

.flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; }
.flow li {
  list-style: none; padding: 0 1.2rem 0 0; position: relative;
}
.flow { padding: 0; margin: 0; }
.flow .step {
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--blue); color: #fff; font-weight: 700;
  display: grid; place-items: center; margin-bottom: .8rem;
}
.flow h3 { font-family: var(--display); margin: 0 0 .35rem; }
.flow p { color: var(--muted); margin: 0; font-size: .95rem; }

.split {
  display: grid; grid-template-columns: .9fr 1.1fr; gap: 2.4rem; align-items: center;
}
.split pre { margin: 0; }

.cta-band {
  margin: 0 6vw 4rem; padding: 2.4rem;
  background: var(--blue-soft); border-radius: 24px;
  display: flex; justify-content: space-between; gap: 1.4rem; align-items: center; flex-wrap: wrap;
}
.cta-band h2 { font-family: var(--display); margin: 0 0 .35rem; letter-spacing: -.03em; }
.cta-band p { margin: 0; color: var(--muted); }

.site-foot {
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem;
  padding: 1.6rem 6vw; border-top: 1px solid var(--line); color: var(--muted); font-size: .9rem;
}
.site-foot a { color: var(--muted); text-decoration: none; }
.site-foot a:hover { color: var(--blue); }
.site-foot div { display: flex; gap: 1.1rem; align-items: center; }

pre, code { font-family: var(--mono); }
pre {
  background: #0f172a; color: #e8eef7; padding: 1.15rem 1.2rem; border-radius: 16px;
  overflow: auto; font-size: .84rem;
}
.docs { padding: 3.2rem 6vw 5rem; max-width: 880px; }
.docs h1, .demo h1 {
  font-family: var(--display); font-size: clamp(2rem, 4vw, 2.7rem);
  letter-spacing: -.035em; margin: 0 0 .55rem;
}
.docs h2 { margin-top: 2rem; font-family: var(--display); }
.muted { color: var(--muted); }
.demo { padding: 3.2rem 6vw 5rem; max-width: 980px; }
.demo-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-top: 1.5rem; }
.demo-card, .probe > div {
  background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 1.2rem 1.3rem;
}
.demo-card select, .demo-card input {
  width: 100%; padding: .7rem .8rem; border-radius: 12px;
  border: 1px solid var(--line); font: inherit; margin: .35rem 0 1rem; background: #fff; color: var(--ink);
}
.demo-card label { font-weight: 600; display: block; }
.probe { display: grid; grid-template-columns: repeat(4, 1fr); gap: .7rem; margin: 1.2rem 0; }
.probe-ok { color: var(--ok); font-weight: 700; display: block; }
.probe-bad { color: var(--bad); font-weight: 700; display: block; }
.banner { padding: .85rem 1rem; border-radius: 12px; margin: 1rem 0; }
.banner.ok { background: var(--ok-soft); color: #047857; }
.banner.bad { background: var(--bad-soft); color: #b91c1c; }
.banner.warn { background: var(--warn-soft); color: #b45309; }
.upi-qr { width: 220px; height: 220px; margin: .6rem auto; background: #fff; padding: 8px; border-radius: 12px; border: 1px solid var(--line); }
.upi-qr img, .upi-qr canvas { display: block; margin: 0 auto; }
.checkout-qr { width: 220px; height: auto; display: block; margin: .6rem auto; }
.pay-amount { font-size: 2.15rem; font-weight: 700; font-family: var(--display); letter-spacing: -.03em; }
.badge { display: inline-block; padding: .15rem .5rem; border-radius: 999px; font-size: .75rem; font-weight: 600; background: var(--wash); }
.badge.ok { background: var(--ok-soft); color: var(--ok); }
.badge.warn { background: var(--warn-soft); color: var(--warn); }
.badge.bad { background: var(--bad-soft); color: var(--bad); }
.mono { font-family: var(--mono); }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.cards article { background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 1.2rem; }
.cards h3 { font-family: var(--display); margin: 0 0 .35rem; }

@media (max-width: 900px) {
  .hero, .bento, .flow, .split, .cards, .demo-grid, .probe { grid-template-columns: 1fr; }
  .bento .wide { grid-column: auto; grid-row: auto; }
  .site-nav nav a:not(.btn) { display: none; }
}