:root {
  --bg: #f5f7fb;
  --surface: #ffffff;
  --surface-strong: #f1f5fb;
  --text: #0f172a;
  --muted: #475569;
  --accent: #2563eb;
  --accent-soft: rgba(37, 99, 235, 0.12);
  --border: #d9e2ec;
  --shadow: 0 24px 80px rgba(15, 23, 42, 0.08);
  --max-width: 1080px;
  --content-width: 820px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100%;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
}

img,
svg {
  max-width: 100%;
}

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

a:hover {
  text-decoration: underline;
}

.page-shell {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px 40px;
}

.site-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 28px 0 24px;
  border-bottom: 1px solid rgba(226, 232, 240, 0.95);
}

.site-brand {
  min-width: 0;
}

.site-title {
  display: inline-block;
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--text);
  text-decoration: none;
}

.site-desc {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.site-nav {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  align-items: center;
}

.site-nav a {
  color: var(--text);
  font-weight: 600;
  padding: 10px 0;
}

.site-nav a:hover {
  color: var(--accent);
}

.site-footer {
  padding: 28px 0 20px;
  text-align: center;
  color: var(--muted);
  font-size: 0.95rem;
  border-top: 1px solid rgba(226, 232, 240, 0.95);
}

.page-main {
  width: 100%;
  margin: 0 auto;
}

.docs-layout {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 32px;
  align-items: start;
}

.docs-sidebar {
  position: sticky;
  top: 24px;
  align-self: start;
}

.sidebar-panel {
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: 24px;
  background: var(--surface);
  box-shadow: 0 24px 80px rgba(15, 23, 42, 0.05);
}

.sidebar-panel h2 {
  margin: 0 0 10px;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.sidebar-links {
  list-style: none;
  margin: 0;
  padding: 0;
}

.sidebar-item {
  margin-bottom: 12px;
}

.sidebar-item a {
  display: block;
  padding: 10px 14px;
  border-radius: 14px;
  color: var(--text);
  transition: background 0.2s ease, color 0.2s ease;
}

.sidebar-item a:hover {
  background: var(--surface-strong);
}

.sidebar-item.active a {
  color: var(--accent);
  font-weight: 700;
  background: var(--accent-soft);
}

.docs-content {
  width: 100%;
  max-width: var(--content-width);
}

.home-post {
  padding: 0;
}

.home-post .doc-page {
  padding-top: 0;
  margin-top: 0;
}

.page-tag {
  display: inline-flex;
  margin-bottom: 12px;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(37, 99, 235, 0.12);
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 420px);
  align-items: center;
  gap: 40px;
  padding: 64px 0 40px;
}

.hero-copy-block {
  max-width: 660px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin: 28px 0 0;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 24px;
  border-radius: 999px;
  font-weight: 700;
  transition: transform 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
}

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

.button-primary {
  background: var(--accent);
  color: #ffffff;
  border: 1px solid transparent;
  box-shadow: 0 16px 40px rgba(37, 99, 235, 0.16);
}

.button-secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.hero-notice {
  margin-top: 24px;
  padding: 18px 22px;
  border-radius: 18px;
  background: rgba(37, 99, 235, 0.08);
  color: var(--text);
  font-size: 0.95rem;
  border: 1px solid rgba(37, 99, 235, 0.18);
}

.hero-panel {
  display: grid;
  gap: 24px;
  padding: 32px;
  border-radius: 32px;
  background: linear-gradient(180deg, rgba(255,255,255,0.96), rgba(248,250,252,0.96));
  border: 1px solid rgba(226, 232, 240, 0.95);
  box-shadow: 0 28px 80px rgba(15, 23, 42, 0.08);
}

.hero-panel-copy {
  display: grid;
  gap: 12px;
}

.hero-panel-copy h2 {
  margin: 0;
  font-size: 1.6rem;
  line-height: 1.2;
}

.hero-stat-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.hero-stat-grid div {
  padding: 20px;
  border-radius: 22px;
  background: var(--surface);
  border: 1px solid var(--border);
}

.hero-stat-grid strong {
  display: block;
  font-size: 1.6rem;
  margin-bottom: 10px;
}

.trusted-logos {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 18px;
  padding: 22px 0 24px;
  margin: 0 -12px;
  color: var(--muted);
  font-size: 0.95rem;
}

.trusted-logos span {
  padding: 10px 18px;
  border-radius: 999px;
  background: rgba(255,255,255,0.75);
  border: 1px solid var(--border);
}

.feature-section {
  padding: 48px 0 14px;
}

.section-heading {
  max-width: 680px;
  margin-bottom: 28px;
}

.section-heading h2 {
  margin: 12px 0 0;
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  line-height: 1.05;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.feature-card {
  padding: 26px;
  border-radius: 24px;
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.05);
}

.feature-card h3 {
  margin: 0 0 14px;
  font-size: 1.15rem;
}

.feature-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

.cta-banner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 24px;
  padding: 36px 32px;
  margin-top: 32px;
  border-radius: 28px;
  background: linear-gradient(90deg, rgba(37, 99, 235, 0.1), rgba(255,255,255,0.9));
  border: 1px solid rgba(37, 99, 235, 0.18);
}

.cta-banner h2 {
  margin: 0 0 10px;
  font-size: 1.6rem;
}

.cta-banner p {
  margin: 0;
  color: var(--muted);
}

@media (max-width: 1024px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .hero-panel {
    order: -1;
  }

  .cta-banner {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .page-shell {
    padding: 0 16px 32px;
  }

  .site-header {
    justify-content: center;
  }

  .site-nav {
    justify-content: center;
  }

  .hero h1 {
    font-size: 2.7rem;
  }

  .doc-content {
    padding: 24px;
  }
}

.doc-page {
  padding: 36px 0 48px;
}

.home-post .doc-page {
  padding-top: 0;
}

.doc-header {
  margin-bottom: 28px;
}

.doc-meta {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 0.95rem;
}

.doc-header h1 {
  margin: 0;
  font-size: clamp(2.6rem, 6vw, 3.6rem);
  line-height: 1.05;
}

.doc-toc {
  padding: 24px;
  margin-bottom: 32px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: var(--surface);
}

.doc-toc h2 {
  margin: 0 0 12px;
  font-size: 1rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.doc-toc ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.doc-toc li {
  margin: 8px 0;
}

.doc-toc a {
  color: var(--text);
}

.doc-content {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 32px;
  box-shadow: var(--shadow);
}

.doc-content h2,
.doc-content h3,
.doc-content h4 {
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  color: var(--text);
}

.doc-content p,
.doc-content ul,
.doc-content ol,
.doc-content blockquote,
.doc-content pre,
.doc-content table {
  margin: 1.25rem 0;
}

.doc-content p {
  color: var(--muted);
  font-size: 1rem;
}

.doc-content strong {
  color: var(--text);
}

.doc-content ul,
.doc-content ol {
  padding-left: 1.35rem;
}

.doc-content blockquote {
  margin: 1.5rem 0;
  padding: 20px 24px;
  border-left: 4px solid var(--accent);
  background: var(--surface-strong);
  color: var(--text);
}

.doc-content pre {
  margin: 1.5rem 0;
  padding: 24px;
  overflow-x: auto;
  border-radius: 18px;
  background: var(--surface-strong);
  color: var(--text);
  border: 1px solid var(--border);
}

.doc-content code {
  background: rgba(37, 99, 235, 0.08);
  color: var(--text);
  padding: 2px 6px;
  border-radius: 6px;
  font-size: 0.95em;
}

.doc-content pre code {
  background: transparent;
  padding: 0;
}

.mermaid,
.doc-content .mermaid {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 20px;
  color: var(--text);
}

.sidebar-cta {
  margin-top: 20px;
}

.simple-home .home-panel {
  padding: 40px;
  border-radius: 28px;
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.simple-home .home-panel h1 {
  margin: 0;
  font-size: clamp(3rem, 5vw, 4rem);
}

.simple-home .home-panel p {
  margin: 22px 0 0;
  color: var(--muted);
  line-height: 1.8;
  font-size: 1.05rem;
}

.doc-content table {
  width: 100%;
  border-collapse: collapse;
}

.doc-content th,
.doc-content td {
  padding: 14px 16px;
  border: 1px solid var(--border);
}

.doc-content th {
  text-align: left;
  background: var(--surface-strong);
}

.site-footer {
  padding: 28px 0 12px;
  text-align: center;
  color: var(--muted);
  font-size: 0.95rem;
}

@media (max-width: 1024px) {
  .docs-layout {
    grid-template-columns: 1fr;
  }

  .docs-sidebar {
    position: relative;
    top: 0;
  }
}

@media (max-width: 720px) {
  .page-shell {
    padding: 0 16px 32px;
  }

  .site-header {
    justify-content: center;
  }

  .site-nav {
    justify-content: center;
  }

  .hero h1 {
    font-size: 2.7rem;
  }

  .doc-content {
    padding: 24px;
  }
}