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

:root {
  color-scheme: dark;
  --bg0: #071610;
  --bg1: #0c2018;
  --surface: rgba(11, 26, 20, 0.84);
  --surface-soft: rgba(255, 255, 255, 0.04);
  --line: rgba(255, 255, 255, 0.1);
  --text: #f4f6f0;
  --text-dim: rgba(244, 246, 240, 0.72);
  --accent: #34d399;
  --accent-2: #8b5cf6;
  --accent-3: #fbbf24;
  --green: #34d399;
  --red: #fb7185;
  --yellow: #fbbf24;
  --orange: #fb923c;
  --radius: 18px;
  --shadow: 0 30px 90px rgba(0, 0, 0, 0.42);
  --font: "Inter", "Sora", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --mono: "SF Mono", "Fira Code", "Cascadia Code", monospace;
}

body {
  min-height: 100vh;
  font-family: var(--font);
  background:
    radial-gradient(circle at 12% 8%, rgba(52, 211, 153, 0.14), transparent 24%),
    radial-gradient(circle at 86% 16%, rgba(139, 92, 246, 0.14), transparent 24%),
    linear-gradient(160deg, var(--bg0), var(--bg1));
  color: var(--text);
  line-height: 1.65;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

code {
  font-family: var(--mono);
  background: rgba(255, 255, 255, 0.05);
  padding: 2px 6px;
  border-radius: 6px;
  font-size: 0.92em;
}

pre {
  background: rgba(0, 0, 0, 0.22);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 18px;
  overflow-x: auto;
  font-size: 13px;
  font-family: var(--mono);
  line-height: 1.55;
  margin: 14px 0;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

pre code {
  background: none;
  padding: 0;
}

.header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 26px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(7, 22, 16, 0.74);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.header h1 {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.02em;
}

.header .subtitle {
  font-size: 0.88rem;
  color: var(--text-dim);
  margin-left: 12px;
}

.header-title {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.nav-links a {
  color: var(--text-dim);
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.02);
}

.nav-links a:hover {
  color: var(--text);
  text-decoration: none;
  border-color: rgba(52, 211, 153, 0.24);
  background: rgba(52, 211, 153, 0.08);
}

.page {
  max-width: 1080px;
  margin: 0 auto;
  padding: 34px 20px 72px;
}

.guide-hero,
.flow-strip,
.qs-card,
.sys-map,
.api-table,
.env-grid {
  box-shadow: var(--shadow);
}

.guide-hero {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 18px;
  padding: 28px;
  border-radius: 28px;
  border: 1px solid var(--line);
  background:
    radial-gradient(circle at 100% 0%, rgba(52, 211, 153, 0.12), transparent 30%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(0, 0, 0, 0.14));
}

.guide-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid rgba(52, 211, 153, 0.2);
  background: rgba(52, 211, 153, 0.08);
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.72rem;
  font-weight: 800;
}

.guide-hero h2 {
  margin: 16px 0 12px;
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: 0.98;
  letter-spacing: -0.05em;
  border: 0;
  padding: 0;
}

.guide-hero p {
  margin: 0;
  max-width: 62ch;
  color: var(--text-dim);
  font-size: 1.02rem;
}

.guide-hero__actions {
  display: grid;
  gap: 12px;
}

.guide-pill {
  display: grid;
  gap: 7px;
  padding: 16px 18px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.guide-pill:hover {
  transform: translateY(-1px);
  text-decoration: none;
  border-color: rgba(52, 211, 153, 0.24);
  background: rgba(52, 211, 153, 0.08);
}

.guide-pill span {
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.72rem;
  font-weight: 800;
}

.guide-pill strong {
  font-size: 1rem;
  letter-spacing: -0.02em;
}

.flow-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 18px 0 10px;
  padding: 18px;
  border-radius: 24px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(0, 0, 0, 0.12));
}

.flow-strip__card {
  min-height: 148px;
  padding: 18px;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.03);
}

.flow-strip__card span {
  display: inline-flex;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  margin-bottom: 12px;
  background: linear-gradient(135deg, var(--accent), var(--accent-3));
  color: #052016;
  font-weight: 900;
}

.flow-strip__card strong {
  display: block;
  margin-bottom: 8px;
  font-size: 1.05rem;
}

.flow-strip__card p {
  color: var(--text-dim);
  font-size: 0.94rem;
}

.page h2 {
  font-size: 1.35rem;
  font-weight: 800;
  margin: 36px 0 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  letter-spacing: -0.03em;
}

.page h2:first-of-type {
  margin-top: 24px;
}

.page h3 {
  font-size: 1rem;
  font-weight: 800;
  margin: 20px 0 8px;
  color: var(--accent);
}

.page p,
.page ul,
.page ol {
  font-size: 0.96rem;
}

.page p {
  margin: 10px 0;
  color: var(--text-dim);
}

.page ul,
.page ol {
  margin: 8px 0 8px 20px;
}

.page li {
  margin: 4px 0;
}

.qs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 14px;
  margin: 16px 0;
}

.qs-card {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(0, 0, 0, 0.12));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
}

.qs-card .qs-num {
  display: inline-flex;
  width: 26px;
  height: 26px;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #061811;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 900;
  margin-right: 8px;
  flex-shrink: 0;
}

.qs-card h4 {
  font-size: 0.96rem;
  font-weight: 800;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
}

.qs-card p {
  font-size: 0.9rem;
  color: var(--text-dim);
  margin: 0;
}

.sys-map {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(0, 0, 0, 0.12));
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 24px;
  margin: 16px 0;
}

.sys-layer {
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.sys-layer:last-child {
  margin-bottom: 0;
  border-bottom: none;
  padding-bottom: 0;
}

.sys-layer-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  font-weight: 800;
  margin-bottom: 10px;
}

.sys-layer-label.clients { color: var(--green); }
.sys-layer-label.api { color: var(--accent); }
.sys-layer-label.engine { color: var(--accent-2); }
.sys-layer-label.stores { color: var(--orange); }
.sys-layer-label.dispatch { color: var(--yellow); }

.sys-nodes {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.sys-node {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  padding: 7px 12px;
  font-size: 12px;
}

.sys-node.green { background: rgba(16, 185, 129, 0.1); border-color: rgba(16, 185, 129, 0.2); }
.sys-node.purple { background: rgba(139, 92, 246, 0.1); border-color: rgba(139, 92, 246, 0.2); }
.sys-node.orange { background: rgba(251, 146, 60, 0.1); border-color: rgba(251, 146, 60, 0.2); }
.sys-node.yellow { background: rgba(251, 191, 36, 0.1); border-color: rgba(251, 191, 36, 0.2); }

.sys-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-dim);
  font-size: 14px;
  padding: 6px 0;
}

.api-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 13px;
  margin: 14px 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.03);
}

.api-table th {
  text-align: left;
  padding: 10px 12px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
}

.api-table td {
  padding: 8px 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  vertical-align: top;
}

.api-table tr:last-child td {
  border-bottom: 0;
}

.api-table .method {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 6px;
  display: inline-block;
}

.api-table .method.get { background: rgba(16, 185, 129, 0.16); color: var(--green); }
.api-table .method.post { background: rgba(52, 211, 153, 0.16); color: var(--accent); }
.api-table .method.put { background: rgba(251, 191, 36, 0.16); color: var(--yellow); }
.api-table .method.delete { background: rgba(251, 113, 133, 0.16); color: var(--red); }

.api-table .path {
  font-family: var(--mono);
  font-size: 12px;
}

.api-table .auth-badge {
  font-size: 10px;
  padding: 2px 7px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-dim);
  white-space: nowrap;
}

.api-table .auth-badge.admin { background: rgba(251, 113, 133, 0.14); color: var(--red); }
.api-table .auth-badge.public { background: rgba(16, 185, 129, 0.14); color: var(--green); }

.env-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 0;
  margin: 12px 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: rgba(255, 255, 255, 0.03);
}

.env-grid .ek,
.env-grid .ev {
  padding: 8px 12px;
  font-size: 13px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.env-grid .ek {
  font-family: var(--mono);
  font-size: 12px;
  background: rgba(255, 255, 255, 0.03);
  font-weight: 700;
}

.env-grid .ev {
  color: var(--text-dim);
}

.footer-note {
  margin-top: 32px;
  font-size: 12px;
  color: var(--text-dim);
  text-align: center;
}

@media (max-width: 900px) {
  .guide-hero,
  .flow-strip {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .page {
    padding: 22px 14px 48px;
  }

  .header {
    padding: 14px 16px;
    flex-wrap: wrap;
  }

  .qs-grid,
  .env-grid {
    grid-template-columns: 1fr;
  }

  .env-grid .ek {
    border-bottom: none;
    padding-bottom: 2px;
  }

  .env-grid .ev {
    padding-top: 0;
  }
}