:root {
  --bg: #fafafa;
  --bg-elevated: #ffffff;
  --sidebar-bg: #f5f5f5;
  --text: #1a1a1a;
  --text-secondary: #555555;
  --text-muted: #808080;
  --text-subtle: #a0a0a0;
  --border: #e0e0e0;
  --border-subtle: #f0f0f0;
  --border-strong: #d0d0d0;
  --accent: #1a1a1a;
  --accent-hover: #404040;
  --secure-bg: #f8f8f8;
  --key-bg: #1a1a1a;
  --key-text: #f5f5f5;
  --badge-bg: #f0f0f0;
  --badge-text: #555555;
  --radius: 4px;
  --radius-sm: 2px;
  --shadow-soft: 0 1px 2px rgba(0, 0, 0, 0.05);
  --max-width: 980px;
}

[data-theme="dark"] {
  --bg: #0a0a0a;
  --bg-elevated: #141414;
  --sidebar-bg: #0f0f0f;
  --border: #2a2a2a;
  --border-subtle: #1a1a1a;
  --border-strong: #3a3a3a;
  --text: #e5e5e5;
  --text-secondary: #a0a0a0;
  --text-muted: #707070;
  --text-subtle: #505050;
  --accent: #e5e5e5;
  --accent-hover: #ffffff;
  --secure-bg: #1a1a1a;
  --key-bg: #000000;
  --key-text: #e5e5e5;
  --badge-bg: #1f1f1f;
  --badge-text: #909090;
  --shadow-soft: 0 1px 2px rgba(0, 0, 0, 0.3);
}

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

html,
body {
  height: 100%;
}

body {
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 14px;
  letter-spacing: -0.01em;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.eyebrow {
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

.section {
  padding: 4.5rem 0;
}

.section-title {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.section-heading {
  font-size: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 1rem;
}

.section-subtitle {
  color: var(--text-secondary);
  max-width: 900px;
  margin-bottom: 2rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(8px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1rem 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1rem;
  color: var(--text-secondary);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.nav-links a {
  padding: 0.35rem 0.5rem;
  border-radius: var(--radius-sm);
  transition: color 0.18s ease, background 0.18s ease;
}

.nav-links a:hover {
  color: var(--text);
  background: var(--border-subtle);
}

.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: 999px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: border-color 0.18s ease, background 0.18s ease, transform 0.18s ease;
  font-size: 1.1rem;
  color: var(--text);
}

.theme-toggle:hover {
  border-color: var(--border-strong);
  background: var(--secure-bg);
}

.theme-toggle:active {
  transform: scale(0.96);
}

.hero {
  padding: 5rem 0 4rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2.5rem;
  align-items: center;
}

.hero-title {
  font-size: 2.1rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 1rem;
}

.hero-copy {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.2rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  transition: background 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}

.button-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg);
}

.button-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

.button-secondary {
  background: transparent;
  color: var(--text-secondary);
}

.button-secondary:hover {
  border-color: var(--border-strong);
  color: var(--text);
  background: var(--border-subtle);
}

.hero-panel {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-elevated);
  padding: 1.75rem;
  box-shadow: var(--shadow-soft);
}

.pipeline {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.pipeline-step {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.75rem;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  background: var(--secure-bg);
}

.pulse-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--accent);
  margin-top: 0.3rem;
  box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent) 40%, transparent);
  animation: pulse 2.4s infinite;
}

.pipeline-step:nth-child(2) .pulse-dot {
  animation-delay: 0.4s;
}

.pipeline-step:nth-child(3) .pulse-dot {
  animation-delay: 0.8s;
}

.pipeline-step:nth-child(4) .pulse-dot {
  animation-delay: 1.2s;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent) 30%, transparent);
  }
  70% {
    box-shadow: 0 0 0 8px color-mix(in srgb, var(--accent) 0%, transparent);
  }
  100% {
    box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent) 0%, transparent);
  }
}

.pipeline-title {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.25rem;
}

.pipeline-desc {
  color: var(--text-muted);
  font-size: 0.75rem;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  margin-top: 2rem;
}

.card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  background: var(--bg-elevated);
  transition: border-color 0.18s ease, transform 0.18s ease;
}

.card:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
}

.card-title {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.7rem;
  margin-bottom: 0.6rem;
}

.card-body {
  color: var(--text-secondary);
  font-size: 0.8125rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.2rem 0.45rem;
  border-radius: var(--radius-sm);
  background: var(--badge-bg);
  color: var(--badge-text);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

.tab-button {
  padding: 0.45rem 0.8rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text-secondary);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.tab-button.is-active {
  background: var(--secure-bg);
  border-color: var(--border-strong);
  color: var(--text);
}

.tab-panel {
  margin-top: 1.5rem;
  padding: 1.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-elevated);
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.18s ease, transform 0.18s ease;
  display: none;
}

.tab-panel.is-active {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

.metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
  margin-top: 1.25rem;
}

.metric {
  padding: 0.75rem 1rem;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  background: var(--secure-bg);
}

.metric-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

.metric-value {
  font-size: 0.95rem;
  margin-top: 0.3rem;
}

.code-block {
  background: var(--key-bg);
  color: var(--key-text);
  border-radius: var(--radius);
  padding: 1.25rem;
  overflow-x: auto;
  border: 1px solid color-mix(in srgb, var(--key-bg) 80%, var(--border));
  line-height: 1.6;
  margin: 1rem 0;
}

.code-inline {
  background: var(--badge-bg);
  color: var(--text);
  padding: 0.1rem 0.35rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
}

.tok-keyword { color: #ffd166; }
.tok-string { color: #8bd5ff; }
.tok-type { color: #f896d8; }
.tok-function { color: #b8f2e6; }
.tok-number { color: #ffadad; }
.tok-comment { color: #a0a0a0; }
.tok-operator { color: #cfcfcf; }
.tok-namespace { color: #c3f8ff; }

.footer {
  border-top: 1px solid var(--border);
  padding: 2rem 0 3rem;
  color: var(--text-muted);
  font-size: 0.75rem;
}

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

.doc-app {
  display: flex;
  min-height: 100vh;
}

.doc-sidebar {
  width: 240px;
  position: fixed;
  inset: 0 auto 0 0;
  background: var(--sidebar-bg);
  border-right: 1px solid var(--border);
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.doc-nav {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.doc-nav a {
  padding: 0.5rem 0.6rem;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-left: 2px solid transparent;
  transition: color 0.18s ease, background 0.18s ease, border-color 0.18s ease;
}

.doc-nav a:hover {
  background: var(--border-subtle);
  color: var(--text);
}

.doc-nav a.is-active {
  background: var(--secure-bg);
  color: var(--text);
  border-left-color: var(--accent);
}

.doc-main {
  margin-left: 240px;
  padding: 3rem 2rem 4rem;
  width: calc(100% - 240px);
}

.doc-section {
  padding: 2.5rem 0;
  border-bottom: 1px solid var(--border-subtle);
}

.doc-section:last-child {
  border-bottom: none;
}

.doc-section h2 {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.doc-header {
  text-align: center;
  border-bottom: none;
  margin-bottom: 3rem;
  padding: 2rem 0;
}

.doc-header h1 {
  font-size: 1.5rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text);
}

.doc-header .subtitle {
  margin-top: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
  font-size: 0.8125rem;
}

.doc-header .stats {
  margin-top: 0.5rem;
  font-size: 0.75rem;
  color: var(--text-subtle);
  font-family: 'JetBrains Mono', monospace;
}

.doc-section p {
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
  line-height: 1.7;
}

.doc-section ul {
  list-style: none;
  display: grid;
  gap: 0.5rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.doc-section li {
  padding-left: 1rem;
  position: relative;
}

.doc-section li::before {
  content: "-";
  position: absolute;
  left: 0;
  color: var(--text-muted);
}

.doc-divider {
  height: 1px;
  background: var(--border);
  margin: 1.5rem 0;
}

.note {
  border: 1px solid var(--border);
  background: var(--secure-bg);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  color: var(--text-secondary);
  font-size: 0.75rem;
  margin: 1.5rem 0 1rem 0;
}

.tagline {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

@media (max-width: 960px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 860px) {
  .doc-sidebar {
    position: static;
    width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }

  .doc-main {
    margin-left: 0;
    width: 100%;
    padding: 2.5rem 1.5rem 3.5rem;
  }

  .doc-app {
    flex-direction: column;
  }
}

@media (max-width: 720px) {
  .nav-links {
    display: none;
  }

  .section {
    padding: 3.5rem 0;
  }

  .hero-title {
    font-size: 1.7rem;
  }
}