:root {
  --bg: #07111f;
  --panel: #101b2d;
  --panel-soft: #15223a;
  --line: rgba(255,255,255,.1);
  --text: #f3f7fb;
  --muted: #92a4bb;
  --primary: #49d5ad;
  --accent: #68a9ff;
  --danger: #ff677d;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
}
a { color: inherit; text-decoration: none; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px clamp(20px, 4vw, 56px);
  background: rgba(7,17,31,.86);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; }
.brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  color: #061019;
  background: var(--primary);
}
nav { display: flex; align-items: center; gap: 20px; color: var(--muted); font-size: 14px; }
.nav-button, .primary, .secondary, button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 18px;
  border-radius: 8px;
  border: 1px solid var(--line);
  font-weight: 700;
}
.nav-button, .primary, button { color: #061019; background: var(--primary); border: 0; }
.secondary { color: var(--text); background: rgba(255,255,255,.04); }
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, .92fr);
  gap: 36px;
  align-items: center;
  min-height: 680px;
  padding: 68px clamp(20px, 6vw, 88px);
}
.eyebrow { margin: 0 0 10px; color: var(--primary); font-size: 12px; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; }
h1, h2, h3, p { margin-top: 0; }
h1 { max-width: 820px; font-size: clamp(42px, 5.2vw, 72px); line-height: 1.02; letter-spacing: 0; }
h2 { font-size: 32px; line-height: 1.15; }
.hero-text, .section p, .auth-card p, .docs p { color: var(--muted); line-height: 1.7; font-size: 16px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.hero-panel, .auth-card, .product-grid article, .docs section {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--panel), rgba(16,27,45,.72));
  border-radius: 8px;
}
.hero-panel { padding: 24px; }
.panel-top { display: flex; justify-content: space-between; color: var(--muted); margin-bottom: 16px; }
.panel-top strong { color: var(--primary); }
.code-card, pre {
  overflow: auto;
  padding: 18px;
  border-radius: 8px;
  color: #d8fff2;
  background: #050b14;
  border: 1px solid rgba(73,213,173,.16);
}
.metric-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 14px; }
.metric-grid.wide { grid-template-columns: repeat(4, 1fr); margin: 0 0 22px; }
.metric-grid div {
  padding: 16px;
  border-radius: 8px;
  background: var(--panel-soft);
  border: 1px solid var(--line);
}
.metric-grid span { display: block; color: var(--muted); font-size: 12px; }
.metric-grid strong { display: block; margin-top: 6px; font-size: 22px; }
.section { padding: 70px clamp(20px, 6vw, 88px); border-top: 1px solid var(--line); }
.section-heading { max-width: 680px; margin-bottom: 24px; }
.product-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 14px; }
.product-grid article { padding: 20px; min-height: 170px; }
.product-grid article span { color: var(--accent); font-size: 12px; font-weight: 800; }
.product-grid article p { color: var(--muted); line-height: 1.55; }
.split { display: grid; grid-template-columns: .9fr 1.1fr; gap: 24px; align-items: start; }
.steps { display: grid; gap: 12px; }
.steps div { display: flex; gap: 14px; align-items: center; padding: 16px; background: var(--panel); border: 1px solid var(--line); border-radius: 8px; }
.steps b { display: grid; place-items: center; width: 30px; height: 30px; border-radius: 8px; background: var(--primary); color: #061019; }
footer { display: flex; justify-content: space-between; padding: 28px clamp(20px, 6vw, 88px); color: var(--muted); border-top: 1px solid var(--line); }
.auth-page { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.auth-shell, .admin-shell { width: min(960px, 100%); }
.single-auth { width: min(760px, 100%); }
.auth-card { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 22px; padding: 24px; }
.auth-card-single { grid-template-columns: .9fr 1.1fr; align-items: start; }
.auth-copy h1 { font-size: clamp(38px, 5vw, 58px); }
.auth-switch { margin: 4px 0 0; color: var(--muted); font-size: 14px; }
.auth-switch a { color: var(--primary); font-weight: 800; }
.admin-login { margin-bottom: 22px; }
.admin-dashboard {
  margin-top: 22px;
  padding: 24px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--panel), rgba(16,27,45,.72));
}
.hidden { display: none !important; }
.form-message { min-height: 20px; margin: 0; color: var(--muted); font-size: 13px; }
.form-message.error { color: var(--danger); }
form { display: grid; gap: 12px; }
label { display: grid; gap: 7px; color: var(--muted); font-size: 13px; }
input { width: 100%; min-height: 42px; border-radius: 8px; border: 1px solid var(--line); background: #081324; color: var(--text); padding: 0 12px; }
.sidebar { position: fixed; inset: 0 auto 0 0; width: 250px; padding: 20px; display: grid; align-content: start; gap: 10px; background: #081324; border-right: 1px solid var(--line); }
.sidebar a:not(.brand) { color: var(--muted); padding: 10px 12px; border-radius: 8px; }
.sidebar a:not(.brand):hover { background: rgba(255,255,255,.05); color: var(--text); }
.dashboard { margin-left: 250px; padding: 36px; }
.dash-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; }
.dash-actions { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.docs-layout {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 28px;
  max-width: 1240px;
  margin: 0 auto;
  padding: 38px 20px 80px;
}
.docs-nav {
  position: sticky;
  top: 92px;
  display: grid;
  gap: 6px;
  align-content: start;
  height: max-content;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(16,27,45,.72);
}
.docs-nav a { color: var(--muted); padding: 10px 12px; border-radius: 8px; font-size: 14px; }
.docs-nav a:hover { color: var(--text); background: rgba(255,255,255,.05); }
.docs-content { min-width: 0; }
.docs-hero, .docs-card {
  padding: 24px;
  margin-bottom: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(180deg, var(--panel), rgba(16,27,45,.72));
}
.docs-hero h1 { font-size: 48px; }
.docs-hero p, .docs-card p { color: var(--muted); line-height: 1.7; }
.endpoint-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-top: 20px;
  padding: 14px;
  border-radius: 8px;
  background: #050b14;
  border: 1px solid rgba(73,213,173,.16);
}
.endpoint-bar span { color: var(--muted); }
.endpoint-bar code { color: #d8fff2; word-break: break-word; }
.api-table { display: grid; gap: 8px; margin-top: 12px; }
.api-table div {
  display: grid;
  grid-template-columns: 120px minmax(180px, 1fr) 1.2fr;
  gap: 12px;
  align-items: center;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255,255,255,.03);
}
.api-table b { color: var(--primary); }
.api-table code { color: #d8fff2; }
.api-table span { color: var(--muted); }
.feature-list, .rules-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}
.feature-list div, .rules-grid div, .product-doc-grid section {
  padding: 16px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.03);
}
.feature-list b, .rules-grid b {
  display: block;
  margin-bottom: 6px;
  color: var(--text);
}
.feature-list span, .rules-grid span {
  color: var(--muted);
  line-height: 1.55;
}
.product-doc-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}
.product-doc-grid section span {
  display: inline-flex;
  margin-bottom: 10px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
}
.product-doc-grid section h3 { margin-bottom: 6px; }
.product-doc-grid section p { margin: 0; }
.docs-card h3 {
  margin: 20px 0 8px;
  font-size: 18px;
}

@media (max-width: 900px) {
  .site-header, nav { align-items: flex-start; flex-direction: column; }
  .hero, .split, .auth-card { grid-template-columns: 1fr; }
  .product-grid, .metric-grid, .metric-grid.wide { grid-template-columns: 1fr; }
  .sidebar { position: static; width: auto; }
  .dashboard { margin-left: 0; padding: 20px; }
  .docs-layout { grid-template-columns: 1fr; }
  .docs-nav { position: static; }
  .api-table div { grid-template-columns: 1fr; }
  .feature-list, .rules-grid, .product-doc-grid { grid-template-columns: 1fr; }
}