:root {
  --bg: #0c1115;
  --surface: #141a1f;
  --surface-container: #1b2228;
  --border: #2a2e39;
  --border-subtle: #1e232a;
  --text: #e1e3e6;
  --text-bright: #ffffff;
  --muted: #8c93a0;
  --cyan: #00d2ff;
  --primary: #55d8f4;
  --blue: #0078d4;
  --live: #4caf50;
  --warning: #f2c66d;
  --max: 1240px;
  --sans: "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --mono: "IBM Plex Mono", "ui-monospace", SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

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

html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; animation: none !important; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--cyan); text-decoration: none; transition: color 0.15s; }
a:hover { text-decoration: underline; color: #6ee7ff; }

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

/* Sticky Header */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(12, 17, 21, 0.9);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

nav .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-bright);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.02em;
}

.brand:hover { text-decoration: none; }
.brand img { width: 32px; height: 32px; }

.nav-links { display: flex; gap: 24px; font-size: 14px; align-items: center; }
.nav-links a { color: var(--muted); font-weight: 500; }
.nav-links a:hover { color: var(--text-bright); text-decoration: none; }
.nav-links .btn-nav {
  background: rgba(0, 210, 255, 0.1);
  color: var(--cyan);
  padding: 6px 14px;
  border-radius: 6px;
  border: 1px solid rgba(0, 210, 255, 0.25);
  font-weight: 600;
}
.nav-links .btn-nav:hover {
  background: rgba(0, 210, 255, 0.2);
  color: #fff;
}

/* Hero Section */
.hero {
  padding: 64px 0 48px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.hero-left { display: flex; flex-direction: column; }

.hero h1 {
  font-size: clamp(34px, 4.2vw, 48px);
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin: 0 0 16px;
  font-weight: 700;
  color: var(--text-bright);
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--cyan);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 12px;
}

.lede {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.6;
  margin: 0 0 24px;
}

.cta { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 24px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 14px;
  border: 1px solid transparent;
  text-decoration: none !important;
  cursor: pointer;
  transition: all 0.15s;
}

.btn-primary {
  background: linear-gradient(135deg, #00b4db, #0083b0);
  color: #fff;
  box-shadow: 0 4px 16px rgba(0, 180, 219, 0.3);
}
.btn-primary:hover {
  background: linear-gradient(135deg, #00c6ee, #0096c7);
  box-shadow: 0 6px 20px rgba(0, 180, 219, 0.45);
}

.btn-secondary {
  background: var(--surface-container);
  color: var(--text-bright);
  border-color: var(--border);
}
.btn-secondary:hover {
  background: var(--surface);
  border-color: var(--muted);
}

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

/* Tabbed App Showcase */
.showcase-container {
  display: flex;
  flex-direction: column;
}

.showcase-tabs {
  display: flex;
  gap: 6px;
  margin-bottom: 12px;
  background: var(--surface);
  padding: 4px;
  border-radius: 10px;
  border: 1px solid var(--border);
}

.showcase-tab-btn {
  flex: 1;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 6px;
  color: var(--muted);
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 500;
  padding: 8px 10px;
  cursor: pointer;
  transition: all 0.15s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.showcase-tab-btn:hover { color: var(--text-bright); }
.showcase-tab-btn.is-active {
  background: var(--surface-container);
  color: var(--cyan);
  border-color: var(--border);
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.bezel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 6px;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(0, 210, 255, 0.08);
  position: relative;
  overflow: hidden;
}

.bezel img {
  width: 100%;
  display: block;
  border-radius: 8px;
  transition: opacity 0.2s ease;
}

.showcase-caption {
  font-size: 13px;
  color: var(--muted);
  margin-top: 10px;
  text-align: center;
}

/* Sections */
section { padding: 56px 0; border-top: 1px solid var(--border-subtle); }
section h2 {
  font-size: 28px;
  letter-spacing: -0.02em;
  margin: 0 0 8px;
  color: var(--text-bright);
}
.section-kicker {
  color: var(--cyan);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin: 0 0 8px;
}

/* Feature Cards Grid */
.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 28px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 22px;
  transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
}

.card:hover {
  transform: translateY(-2px);
  border-color: rgba(0, 210, 255, 0.4);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.card-icon {
  font-size: 20px;
  margin-bottom: 12px;
  display: inline-block;
}

.card h3 {
  margin: 0 0 8px;
  font-size: 16px;
  color: var(--text-bright);
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}

/* Pipeline */
.pipeline-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  margin-top: 24px;
}
.pipeline-img { width: 100%; height: auto; display: block; }

/* Device Matrix Strip */
.strip { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.chip {
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 999px;
  padding: 7px 14px;
  font-size: 13px;
  color: var(--text);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.chip strong { color: var(--cyan); }

/* Documentation Hub Layout */
.docs-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 36px;
  margin-top: 28px;
  align-items: start;
}

.docs-nav {
  position: sticky;
  top: 84px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
}

.docs-nav-header {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  padding: 4px 8px 8px;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 6px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.docs-nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: 8px;
  color: var(--muted);
  font-size: 13.5px;
  font-weight: 500;
  text-decoration: none !important;
  transition: all 0.15s;
}

.docs-nav-link:hover { color: var(--text-bright); background: rgba(255, 255, 255, 0.04); }
.docs-nav-link.is-active {
  color: var(--cyan);
  background: rgba(0, 210, 255, 0.12);
  font-weight: 600;
}

.docs-content {
  min-width: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 36px 40px;
}

/* All docs rendered continuously */
.doc-panel {
  display: block;
  margin-bottom: 56px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--border);
}
.doc-panel:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.doc-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  padding-bottom: 12px;
  margin-bottom: 24px;
}

.doc-panel-header h3 {
  font-size: 24px;
  margin: 0;
  color: var(--text-bright);
}

.doc-badge {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(0, 210, 255, 0.1);
  color: var(--cyan);
  border: 1px solid rgba(0, 210, 255, 0.25);
}

.doc-panel h4 {
  font-size: 16px;
  margin: 24px 0 8px;
  color: var(--text-bright);
}

.doc-panel p, .doc-panel li {
  color: #c4cbd4;
  font-size: 15px;
  line-height: 1.65;
}

.doc-panel ul, .doc-panel ol {
  padding-left: 24px;
  margin: 12px 0;
}

.doc-table-wrap {
  overflow-x: auto;
  margin: 18px 0;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #0f1317;
}

.doc-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
  text-align: left;
}

.doc-table th {
  background: #181d24;
  color: var(--text-bright);
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  font-weight: 600;
  white-space: nowrap;
}

.doc-table td {
  padding: 9px 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  color: #c4cbd4;
}

.doc-table tr:last-child td { border-bottom: none; }
.doc-table tr:hover td { background: rgba(255, 255, 255, 0.02); }

.callout {
  background: rgba(0, 210, 255, 0.06);
  border-left: 3px solid var(--cyan);
  padding: 14px 18px;
  border-radius: 0 8px 8px 0;
  margin: 18px 0;
  font-size: 14px;
  color: #c4cbd4;
}

.callout strong { color: var(--text-bright); }
.callout-tip { background: rgba(76, 175, 80, 0.06); border-left-color: #4caf50; }
.callout-warning { background: rgba(242, 198, 109, 0.06); border-left-color: #f2c66d; }

/* Code and Pre Blocks */
pre {
  background: #090c0f;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 16px;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 13px;
  position: relative;
  margin: 14px 0;
  color: #e3e8eb;
}

code {
  font-family: var(--mono);
  font-size: 13px;
  background: rgba(255, 255, 255, 0.06);
  padding: 2px 6px;
  border-radius: 4px;
  color: #55d8f4;
}

pre code {
  background: transparent;
  padding: 0;
  color: inherit;
}

.copy {
  position: absolute;
  top: 8px;
  right: 8px;
  background: var(--surface-container);
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 3px 8px;
  font-size: 11px;
  font-weight: 500;
  cursor: pointer;
  font-family: var(--sans);
  transition: all 0.15s;
}

.copy:hover { color: var(--text-bright); border-color: var(--muted); }

/* Footer */
footer {
  border-top: 1px solid var(--border);
  padding: 36px 0 48px;
  color: var(--muted);
  font-size: 13px;
  background: #080b0e;
}

footer .wrap {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

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

/* Responsive adjustments */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; padding: 40px 0; }
  .grid { grid-template-columns: 1fr; }
  .docs-layout { grid-template-columns: 1fr; }
  .docs-nav { position: static; }
  .nav-links { display: none; }
}