:root {
  --bg: #08141f;
  --bg-soft: #0e2032;
  --surface: #11253a;
  --surface-2: #0f1f31;
  --line: rgba(160, 197, 226, 0.2);
  --text: #eaf4fb;
  --muted: #9eb5c8;
  --primary: #36d1b8;
  --primary-2: #ffbd59;
  --danger: #ff7f73;
  --radius: 14px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  color: var(--text);
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 85% 8%, rgba(66, 134, 255, 0.22), transparent 26%),
    radial-gradient(circle at 10% 80%, rgba(54, 209, 184, 0.2), transparent 24%),
    var(--bg);
}

a {
  color: inherit;
}

.container {
  width: min(1140px, 92vw);
  margin-inline: auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(9px);
  background: rgba(8, 20, 31, 0.78);
  border-bottom: 1px solid var(--line);
}

.topbar-row {
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--primary);
}

.nav-links {
  display: flex;
  gap: 0.2rem;
  flex-wrap: wrap;
}

.nav-links a {
  text-decoration: none;
  color: var(--muted);
  padding: 0.38rem 0.62rem;
  border-radius: 999px;
  font-size: 0.92rem;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text);
  background: rgba(120, 178, 222, 0.16);
}

.actions {
  display: flex;
  gap: 0.55rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  border-radius: 999px;
  padding: 0.52rem 0.92rem;
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 0.9rem;
  background: linear-gradient(120deg, var(--primary), #2bb6ca);
  color: #02211f;
}

.btn.ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--text);
}

.hero {
  padding: 4rem 0 1.8rem;
}

.kicker {
  color: var(--primary-2);
  margin: 0 0 0.45rem;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.9rem;
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.2rem);
}

.lead {
  color: var(--muted);
  max-width: 68ch;
  margin-top: 0.7rem;
  line-height: 1.5;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 1rem;
  margin-top: 1.3rem;
}

.panel {
  background: linear-gradient(165deg, rgba(20, 39, 58, 0.9), rgba(12, 25, 39, 0.9));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem;
}

.panel h3 {
  margin: 0 0 0.55rem;
}

.panel p,
.muted {
  color: var(--muted);
}

.badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.badges span {
  border: 1px solid rgba(115, 190, 190, 0.35);
  background: rgba(44, 173, 177, 0.12);
  color: #cdeff0;
  border-radius: 999px;
  padding: 0.24rem 0.56rem;
  font-size: 0.82rem;
}

section {
  margin-top: 1.4rem;
}

section h2 {
  margin: 0 0 0.55rem;
  font-size: 1.6rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.9rem;
}

.card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem;
  background: linear-gradient(165deg, rgba(20, 39, 58, 0.9), rgba(12, 25, 39, 0.9));
}

.card h3 {
  margin-top: 0;
}

.doc-layout {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: 1rem;
  margin-top: 1rem;
}

.sidebar,
.content {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(165deg, rgba(20, 39, 58, 0.9), rgba(12, 25, 39, 0.9));
}

.sidebar {
  padding: 0.9rem;
  position: sticky;
  top: 84px;
  height: fit-content;
}

.sidebar a {
  display: block;
  text-decoration: none;
  color: var(--muted);
  padding: 0.35rem 0.45rem;
  border-radius: 8px;
  margin-bottom: 0.2rem;
  font-size: 0.92rem;
}

.sidebar a:hover,
.sidebar a.active {
  background: rgba(108, 168, 220, 0.16);
  color: var(--text);
}

.content {
  padding: 1rem 1.1rem;
}

.content h3 {
  margin-top: 0.25rem;
}

.content h4 {
  margin-bottom: 0.45rem;
}

.content p,
.content li {
  color: var(--muted);
  line-height: 1.5;
}

.content ul,
.content ol {
  padding-left: 1.1rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.93rem;
}

th,
td {
  border-bottom: 1px solid var(--line);
  padding: 0.6rem 0.52rem;
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--text);
}

pre {
  margin: 0;
  overflow-x: auto;
  background: #081521;
  border: 1px solid rgba(131, 170, 199, 0.28);
  border-radius: 10px;
  padding: 0.78rem;
  font-size: 0.84rem;
}

code,
pre {
  font-family: "IBM Plex Mono", monospace;
}

.codeblock {
  margin-bottom: 0.85rem;
}

.arch-flow {
  display: flex;
  gap: 0.55rem;
  align-items: center;
  flex-wrap: wrap;
  margin: 0.6rem 0;
}

.arch-node {
  border-radius: 10px;
  border: 1px solid rgba(101, 179, 193, 0.35);
  padding: 0.45rem 0.6rem;
  background: #0f2f40;
}

.arch-arrow {
  color: var(--primary-2);
  font-weight: 700;
}

.method {
  font-family: "IBM Plex Mono", monospace;
  border-radius: 999px;
  padding: 0.12rem 0.45rem;
  font-size: 0.78rem;
}

.api-grid {
  display: grid;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.api-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.7rem 0.8rem;
  background: rgba(9, 25, 39, 0.65);
}

.api-card-head {
  display: flex;
  gap: 0.6rem;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 0.35rem;
}

.api-card-path {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.85rem;
  color: var(--text);
}

.schema-block {
  margin-bottom: 1rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.7rem 0.8rem;
  background: rgba(9, 25, 39, 0.65);
}

.schema-block h4 {
  margin: 0 0 0.55rem;
}

.schema-meta {
  font-size: 0.84rem;
  color: var(--muted);
  margin-bottom: 0.55rem;
}

.type-link {
  color: #9ed8ff;
  text-decoration: none;
  border-bottom: 1px dotted rgba(158, 216, 255, 0.45);
}

.type-link:hover {
  color: #d6efff;
}

.get { background: rgba(64, 220, 152, 0.2); color: #c5f8df; }
.post { background: rgba(84, 170, 255, 0.2); color: #c9e5ff; }
.put { background: rgba(250, 188, 80, 0.21); color: #ffe8be; }
.delete { background: rgba(255, 127, 115, 0.22); color: #ffd3ce; }

.footer {
  margin: 2.8rem auto 1.6rem;
  border-top: 1px solid var(--line);
  padding-top: 0.95rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.6rem;
  color: var(--muted);
}

.footer a {
  color: var(--muted);
  margin-right: 0.8rem;
  text-decoration: none;
}

.footer a:hover {
  color: var(--text);
}

.reveal {
  animation: enter 460ms ease both;
}

@keyframes enter {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 980px) {
  .hero-grid,
  .grid-3,
  .doc-layout {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
  }

  .actions {
    display: none;
  }

  .nav-links {
    gap: 0.1rem;
  }

  .topbar-row {
    align-items: flex-start;
    flex-direction: column;
    padding: 0.6rem 0;
  }
}