:root {
  --bg: #0f172a;
  --panel: #111827;
  --panel-strong: rgba(17, 24, 39, 0.82);
  --text: #e5e7eb;
  --muted: #94a3b8;
  --accent: #38bdf8;
  --accent-strong: #082f49;
  --accent-2: #22c55e;
  --border: rgba(255, 255, 255, 0.08);
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, Arial, sans-serif;
  background: linear-gradient(180deg, #020617 0%, #0f172a 100%);
  color: var(--text);
  line-height: 1.6;
}

a {
  color: var(--accent);
}

.container {
  width: min(1100px, 92%);
  margin: 0 auto;
}

.site-header {
  padding: 72px 0 40px;
  border-bottom: 1px solid var(--border);
}

.site-nav,
.page-header__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.site-nav {
  margin-bottom: 56px;
}

.brand {
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 0.3px;
}

.nav-links,
.page-nav {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.nav-links a,
.hero a,
.card a,
footer a,
.page-nav a,
.back-link {
  color: var(--accent);
  text-decoration: none;
}

.hero {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 32px;
  align-items: center;
}

.tag {
  display: inline-block;
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 18px;
}

h1 {
  font-size: clamp(2.2rem, 5vw, 4rem);
  line-height: 1.1;
  margin: 0 0 16px;
}

.subtitle {
  color: var(--muted);
  max-width: 60ch;
  margin-bottom: 24px;
  font-size: 1.05rem;
}

.actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 12px 18px;
  border-radius: 12px;
  border: 1px solid transparent;
  font-weight: 600;
  transition: 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--accent);
  color: var(--accent-strong) !important;
}

.btn-secondary {
  border-color: var(--border);
  color: var(--text) !important;
  background: rgba(255, 255, 255, 0.03);
}

.hero-card,
.card,
.doc-card {
  background: var(--panel-strong);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 24px;
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
}

main {
  padding: 48px 0 80px;
}

.section-title {
  font-size: 1.7rem;
  margin-bottom: 20px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.card h3 {
  margin-top: 0;
  margin-bottom: 10px;
}

.card p,
.hero-card p,
footer p {
  color: var(--muted);
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
  font-weight: 600;
  margin-bottom: 8px;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--accent-2);
  display: inline-block;
  box-shadow: 0 0 12px rgba(34, 197, 94, 0.8);
}

footer {
  padding: 24px 0 48px;
  border-top: 1px solid var(--border);
}

.page-header {
  padding: 24px 0;
  border-bottom: 1px solid var(--border);
  background: rgba(2, 6, 23, 0.7);
  backdrop-filter: blur(8px);
}

.page-main {
  padding-top: 40px;
}

.doc-card {
  max-width: 960px;
  margin: 0 auto;
}

.back-link {
  display: inline-block;
  margin-bottom: 18px;
  font-weight: 600;
}

.markdown-body h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 24px;
}

.markdown-body h2,
.markdown-body h3,
.markdown-body h4 {
  margin-top: 2rem;
  margin-bottom: 0.8rem;
}

.markdown-body p,
.markdown-body li,
.markdown-body blockquote {
  color: var(--text);
}

.markdown-body hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: 2rem 0;
}

.markdown-body blockquote {
  margin: 1.2rem 0;
  padding: 0.8rem 1rem;
  border-left: 4px solid var(--accent);
  background: rgba(56, 189, 248, 0.08);
  border-radius: 0 12px 12px 0;
}

.markdown-body pre,
.markdown-body code {
  font-family: "Fira Code", "Cascadia Code", Consolas, monospace;
}

.markdown-body pre {
  overflow-x: auto;
  padding: 16px;
  border-radius: 14px;
  background: rgba(2, 6, 23, 0.9);
  border: 1px solid var(--border);
}

.markdown-body :not(pre) > code {
  padding: 0.15rem 0.4rem;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
}

.markdown-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  display: block;
  overflow-x: auto;
}

.markdown-body th,
.markdown-body td {
  padding: 12px 14px;
  border: 1px solid var(--border);
  text-align: left;
}

.markdown-body th {
  background: rgba(56, 189, 248, 0.08);
}

@media (max-width: 860px) {
  .hero,
  .grid,
  .site-nav,
  .page-header__inner {
    grid-template-columns: 1fr;
  }

  .site-nav,
  .page-header__inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .doc-card,
  .hero-card,
  .card {
    padding: 20px;
  }
}