:root {
  --bg: #070b11;
  --bg-2: #0b1119;
  --panel: rgba(20, 28, 39, 0.7);
  --panel-solid: #131a23;
  --border: rgba(120, 150, 190, 0.14);
  --border-strong: rgba(120, 150, 190, 0.28);
  --text: #eaf1f8;
  --muted: #8da0b3;
  --accent: #3aa0ff;
  --accent-2: #7c5cff;
  --accent-3: #22d39a;
  --code-bg: #060a0f;
  --radius: 16px;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.65;
  overflow-x: hidden;
}

/* ── Animated aurora background ──────────────────────────── */
.aurora { position: fixed; inset: 0; z-index: -1; overflow: hidden; }
.aurora::before, .aurora::after {
  content: ""; position: absolute; width: 60vw; height: 60vw; border-radius: 50%;
  filter: blur(90px); opacity: 0.35; will-change: transform;
}
.aurora::before {
  background: radial-gradient(circle, var(--accent), transparent 60%);
  top: -20vw; left: -10vw; animation: drift1 22s ease-in-out infinite alternate;
}
.aurora::after {
  background: radial-gradient(circle, var(--accent-2), transparent 60%);
  top: -5vw; right: -15vw; animation: drift2 26s ease-in-out infinite alternate;
}
@keyframes drift1 { to { transform: translate(20vw, 25vh) scale(1.2); } }
@keyframes drift2 { to { transform: translate(-18vw, 30vh) scale(1.15); } }
@media (prefers-reduced-motion: reduce) {
  .aurora::before, .aurora::after { animation: none; }
}

.wrap { max-width: 980px; margin: 0 auto; padding: 0 22px; }

/* ── Nav ─────────────────────────────────────────────────── */
header.nav {
  position: sticky; top: 0; z-index: 20;
  background: rgba(7, 11, 17, 0.72); backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.nav-inner { display: flex; align-items: center; gap: 16px; height: 64px; }
.brand { font-weight: 750; font-size: 18px; letter-spacing: .2px; display: flex; align-items: center; gap: 9px; }
.brand .dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--accent-3); box-shadow: 0 0 12px var(--accent-3);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse { 50% { opacity: .45; box-shadow: 0 0 4px var(--accent-3); } }
.nav-links { margin-left: auto; display: flex; gap: 20px; align-items: center; }
.nav-links a { color: var(--muted); font-size: 14px; text-decoration: none; transition: color .2s; }
.nav-links a:hover { color: var(--text); }
.btn {
  display: inline-flex; align-items: center; gap: 7px; padding: 10px 18px; border-radius: 11px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #fff !important;
  font-weight: 650; font-size: 14px; border: none; cursor: pointer; text-decoration: none;
  box-shadow: 0 6px 22px -8px var(--accent); transition: transform .18s, box-shadow .18s, filter .18s;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 12px 30px -8px var(--accent); filter: brightness(1.06); }
.btn.ghost { background: rgba(255,255,255,.04); color: var(--text) !important; border: 1px solid var(--border-strong); box-shadow: none; }
.btn.ghost:hover { background: rgba(255,255,255,.08); }

/* ── Hero ────────────────────────────────────────────────── */
.hero { padding: 92px 0 56px; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted);
  border: 1px solid var(--border); border-radius: 100px; padding: 6px 14px; margin-bottom: 22px;
  background: rgba(255,255,255,.02);
}
.eyebrow .live { width: 7px; height: 7px; border-radius: 50%; background: var(--accent-3); animation: pulse 2s infinite; }
.hero h1 { font-size: 52px; line-height: 1.08; margin: 0 0 18px; letter-spacing: -1.2px; font-weight: 780; }
.grad {
  background: linear-gradient(110deg, var(--accent) 10%, var(--accent-2) 45%, var(--accent-3) 90%);
  background-size: 220% auto; -webkit-background-clip: text; background-clip: text; color: transparent;
  animation: shimmer 6s linear infinite;
}
@keyframes shimmer { to { background-position: 220% center; } }
.hero p.lead { font-size: 19px; color: var(--muted); max-width: 600px; margin: 0 0 30px; }
.hero .cta { display: flex; gap: 13px; flex-wrap: wrap; }

/* ── Sections ────────────────────────────────────────────── */
.section { padding: 56px 0; border-top: 1px solid var(--border); }
.section h2 { font-size: 30px; margin: 0 0 8px; letter-spacing: -.6px; }
.section .sub { color: var(--muted); margin: 0 0 30px; font-size: 16px; }

/* ── Cards / steps ───────────────────────────────────────── */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 18px; }
.card {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; backdrop-filter: blur(8px); transition: transform .25s, border-color .25s, box-shadow .25s;
}
.card:hover { transform: translateY(-4px); border-color: var(--border-strong); box-shadow: 0 18px 40px -22px #000; }
.card .num {
  font-family: var(--mono); font-size: 13px; font-weight: 700;
  background: linear-gradient(135deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.card h3 { margin: 10px 0 7px; font-size: 17px; }
.card p { margin: 0; color: var(--muted); font-size: 14px; }

/* ── Endpoints ───────────────────────────────────────────── */
.endpoint {
  display: flex; align-items: center; gap: 13px; margin: 10px 0; font-family: var(--mono); font-size: 14px;
  padding: 13px 16px; border: 1px solid var(--border); border-radius: 12px; background: rgba(255,255,255,.015);
  transition: border-color .2s, transform .2s;
}
.endpoint:hover { border-color: var(--border-strong); transform: translateX(4px); }
.method { font-weight: 700; padding: 4px 10px; border-radius: 7px; font-size: 12px; }
.method.get { background: rgba(34,211,154,.14); color: var(--accent-3); }
.method.post { background: rgba(58,160,255,.16); color: var(--accent); }
.endpoint .path { color: var(--text); }
.endpoint .desc { color: var(--muted); font-family: var(--sans); font-size: 13px; margin-left: auto; }

/* ── Code block ──────────────────────────────────────────── */
.tabs { display: flex; gap: 6px; margin-bottom: -1px; flex-wrap: wrap; }
.tab {
  padding: 9px 16px; border: 1px solid var(--border); border-bottom: none; background: rgba(255,255,255,.02);
  color: var(--muted); cursor: pointer; font-size: 13px; border-radius: 9px 9px 0 0; font-family: var(--mono);
  transition: color .2s, background .2s;
}
.tab.active { background: var(--code-bg); color: var(--text); }
.codebox { position: relative; background: var(--code-bg); border: 1px solid var(--border); border-radius: 0 var(--radius) var(--radius) var(--radius); overflow: hidden; }
.codebox pre { margin: 0; padding: 22px; overflow-x: auto; font-family: var(--mono); font-size: 13.5px; line-height: 1.75; }
.codebox pre code { color: #cdd9e5; white-space: pre; }
.copy-btn {
  position: absolute; top: 11px; right: 11px; padding: 6px 12px; font-size: 12px;
  background: rgba(255,255,255,.05); color: var(--muted); border: 1px solid var(--border-strong);
  border-radius: 8px; cursor: pointer; transition: color .2s, background .2s;
}
.copy-btn:hover { color: var(--text); background: rgba(255,255,255,.1); }
.hide { display: none; }

/* ── Catalog ─────────────────────────────────────────────── */
.catalog-bar { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-bottom: 22px; }
.catalog-bar input {
  flex: 1; min-width: 220px; padding: 11px 14px; border-radius: 11px; border: 1px solid var(--border-strong);
  background: rgba(255,255,255,.03); color: var(--text); font-family: var(--mono); font-size: 13px;
}
.catalog-bar input:focus { outline: none; border-color: var(--accent); }
.catalog-status { color: var(--muted); font-size: 13px; }
.catalog { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px; }
.product {
  border: 1px solid var(--border); border-radius: 14px; padding: 16px 18px; background: var(--panel);
  backdrop-filter: blur(8px); transition: transform .22s, border-color .22s, box-shadow .22s;
  display: flex; flex-direction: column; gap: 8px;
}
.product:hover { transform: translateY(-3px); border-color: var(--border-strong); box-shadow: 0 16px 36px -22px #000; }
.product .pname { font-weight: 620; font-size: 15px; line-height: 1.35; }
.product .prow { display: flex; align-items: center; justify-content: space-between; margin-top: auto; }
.product .price { font-weight: 750; font-size: 18px; color: var(--accent-3); }
.product .pid { font-family: var(--mono); font-size: 11.5px; color: var(--muted); background: var(--code-bg); border: 1px solid var(--border); padding: 2px 7px; border-radius: 6px; }
.badge-stock { font-size: 11px; padding: 2px 8px; border-radius: 100px; }
.badge-stock.in { background: rgba(34,211,154,.14); color: var(--accent-3); }
.badge-stock.out { background: rgba(255,90,90,.14); color: #ff8a8a; }

/* ── Errors table ────────────────────────────────────────── */
table.errors { width: 100%; border-collapse: collapse; font-size: 14px; }
table.errors th, table.errors td { text-align: left; padding: 11px 12px; border-bottom: 1px solid var(--border); }
table.errors th { color: var(--muted); font-weight: 600; }
table.errors td code { font-family: var(--mono); color: #ffb4a1; }
table.errors td.status { font-family: var(--mono); color: var(--accent); }

.note { background: rgba(58,160,255,.06); border: 1px solid var(--border); border-left: 3px solid var(--accent); border-radius: 12px; padding: 15px 17px; color: var(--muted); font-size: 14px; }
.note strong { color: var(--text); }

footer { padding: 48px 0; border-top: 1px solid var(--border); color: var(--muted); font-size: 13px; text-align: center; }
code.inline { font-family: var(--mono); background: var(--code-bg); border: 1px solid var(--border); padding: 1px 6px; border-radius: 6px; font-size: 13px; }

/* ── Scroll reveal ───────────────────────────────────────── */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: .08s; }
.reveal[data-delay="2"] { transition-delay: .16s; }
.reveal[data-delay="3"] { transition-delay: .24s; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

@media (max-width: 640px) {
  .hero h1 { font-size: 36px; }
  .hero { padding: 64px 0 40px; }
  .nav-links a:not(.btn) { display: none; }
  .endpoint .desc { display: none; }
}