/* ── Reset & Base ── */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg: #0a0a0a;
  --bg-secondary: #111111;
  --bg-tertiary: #1a1a1a;
  --text: #e0e0e0;
  --text-muted: #888888;
  --border: #222222;
  --green: #4ade80;
  --blue: #60a5fa;
  --purple: #a78bfa;
  --amber: #fbbf24;
  --red: #f87171;
}

html {
  scroll-behavior: smooth;
  font-size: 15px;
}

body {
  font-family: 'JetBrains Mono', 'Fira Code', 'SF Mono', monospace;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--text);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--green);
}

/* ── Accent Colors ── */
.accent-green { color: var(--green); }
.accent-blue { color: var(--blue); }
.accent-purple { color: var(--purple); }
.accent-amber { color: var(--amber); }
.accent-red { color: var(--red); }

/* ── Header ── */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid transparent;
  transition: background 0.3s, border-color 0.3s, backdrop-filter 0.3s;
}

header.scrolled {
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom-color: var(--border);
}

.header-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
}

.logo-img {
  height: 24px;
  width: auto;
}

.header-links {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.header-links a {
  color: var(--text-muted);
  display: flex;
  align-items: center;
}

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

.nav-link {
  font-size: 0.8rem;
  padding: 0.3rem 0;
  border-bottom: 1px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}

.nav-link:hover {
  color: var(--green) !important;
}

.nav-link.active {
  color: var(--green) !important;
  border-bottom-color: var(--green);
}

.nav-divider {
  width: 1px;
  height: 14px;
  background: var(--border);
}

/* ── Main Container ── */
main {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ── Hero ── */
.hero {
  padding: 5rem 0 4rem;
}

.hero h1 {
  font-size: 3rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 0.5rem;
}

.hero .subtitle {
  font-size: 1.1rem;
  font-weight: 500;
  margin-bottom: 1.5rem;
}

.hero .description {
  color: var(--text-muted);
  font-size: 0.9rem;
  max-width: 560px;
  margin-bottom: 2rem;
}

.command-line {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
}

/* ── Blinking Cursor ── */
.cursor {
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* ── CTA ── */
.cta-group {
  display: flex;
  gap: 1.5rem;
  align-items: center;
  flex-wrap: wrap;
}

.btn {
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-primary {
  padding: 0.6rem 1.5rem;
  border: 1px solid var(--green);
  color: var(--green);
  border-radius: 2px;
}

.btn-primary:hover {
  background: var(--green);
  color: var(--bg);
}

.btn-text {
  color: var(--text-muted);
}

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

/* ── Terminal Window ── */
.terminal-window {
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-secondary);
  overflow: hidden;
}

.terminal-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg-tertiary);
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.dot.red { background: #ff5f57; }
.dot.yellow { background: #febc2e; }
.dot.green { background: #28c840; }

.terminal-title {
  margin-left: 0.75rem;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.terminal-body {
  padding: 2rem;
}

/* ── Sections ── */
.section {
  padding: 4rem 0;
}

.section-title {
  margin-bottom: 2.5rem;
  font-size: 0.85rem;
  font-weight: 400;
}

.comment {
  color: var(--text-muted);
}

/* ── Integrations Slider ── */
.integrations-slider {
  overflow: hidden;
  padding: 1.5rem 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  mask-image: linear-gradient(to right, transparent 0%, black 10%, black 90%, transparent 100%);
  -webkit-mask-image: linear-gradient(to right, transparent 0%, black 10%, black 90%, transparent 100%);
}
.slider-track {
  display: flex;
  gap: 3rem;
  width: max-content;
  animation: slide 40s linear infinite;
}
.slider-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
  white-space: nowrap;
  transition: color 0.2s;
  text-decoration: none;
  letter-spacing: 0.02em;
}
.slider-item:hover {
  color: var(--green);
}
.slider-logo {
  height: 20px;
  width: auto;
  opacity: 0.6;
  transition: opacity 0.2s;
  filter: grayscale(100%) brightness(1.5);
}
.slider-item:hover .slider-logo {
  opacity: 1;
  filter: none;
}
@keyframes slide {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ── Features Grid ── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.feature-card {
  border: 1px solid var(--border);
  background: var(--bg-secondary);
  padding: 1.5rem;
  border-radius: 4px;
  transition: transform 0.2s, border-color 0.2s;
  position: relative;
}

.feature-card::before {
  content: attr(data-line);
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  font-size: 0.7rem;
  color: var(--text-muted);
  opacity: 0.3;
}

.feature-card:hover {
  transform: translateY(-2px);
  border-color: #333;
}

.feature-icon {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.feature-card h3 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.feature-card p {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ── Architecture ── */
.arch-body {
  padding: 2rem 1.5rem;
}

.arch-diagram {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.arch-layer {
  border: 1px dashed var(--border);
  border-radius: 4px;
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.layer-label {
  font-size: 0.75rem;
  font-weight: 600;
  min-width: 110px;
  flex-shrink: 0;
}

.layer-items {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.layer-items span {
  font-size: 0.75rem;
  padding: 0.25rem 0.6rem;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  color: var(--text-muted);
}

.layer-blue { border-color: rgba(96, 165, 250, 0.3); }
.layer-blue .layer-label { color: var(--blue); }
.layer-green { border-color: rgba(74, 222, 128, 0.3); }
.layer-green .layer-label { color: var(--green); }
.layer-purple { border-color: rgba(167, 139, 250, 0.3); }
.layer-purple .layer-label { color: var(--purple); }
.layer-amber { border-color: rgba(251, 191, 36, 0.3); }
.layer-amber .layer-label { color: var(--amber); }

.arch-connector {
  display: flex;
  justify-content: center;
  gap: 3rem;
  padding: 0.3rem 0;
}

.dashed-line {
  width: 1px;
  height: 16px;
  border-left: 1px dashed var(--border);
}

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

.badge {
  font-size: 0.7rem;
  padding: 0.3rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 2px;
  color: var(--text-muted);
  background: var(--bg-secondary);
}


/* ── Code Block ── */
.code-block {
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-secondary);
  overflow: hidden;
}

.code-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.6rem 1rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg-tertiary);
}

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

.copy-btn {
  font-family: inherit;
  font-size: 0.7rem;
  color: var(--text-muted);
  background: none;
  border: 1px solid var(--border);
  border-radius: 2px;
  padding: 0.2rem 0.6rem;
  cursor: pointer;
  transition: all 0.2s;
}

.copy-btn:hover {
  color: var(--text);
  border-color: #444;
}

.copy-btn.copied {
  color: var(--green);
  border-color: var(--green);
}

.code-body {
  padding: 1.25rem 1.5rem;
}

.code-line {
  font-size: 0.85rem;
  line-height: 2;
  white-space: nowrap;
}

.line-num {
  color: var(--text-muted);
  opacity: 0.4;
  margin-right: 1.5rem;
  user-select: none;
}

/* ── Docs Grid ── */
.docs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.doc-card {
  display: block;
  border: 1px solid var(--border);
  background: var(--bg-secondary);
  padding: 1.5rem;
  border-radius: 4px;
  transition: transform 0.2s, border-color 0.2s;
  text-decoration: none;
}

.doc-card:hover {
  transform: translateY(-2px);
  border-color: #333;
}

.doc-card:hover .doc-card-link {
  color: var(--green);
}

.doc-card-title {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text);
}

.doc-card-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.doc-card-link {
  font-size: 0.75rem;
  color: var(--text-muted);
  transition: color 0.2s;
}

.docs-cta {
  text-align: center;
  margin-top: 2rem;
}

/* ── Footer ── */
.footer-rule {
  border: none;
  border-top: 1px solid var(--border);
  max-width: 960px;
  margin: 0 auto;
}

footer {
  padding: 0 1.5rem;
}

.footer-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 2rem 0 3rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

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

.footer-links {
  display: flex;
  gap: 1.5rem;
}

.footer-links a {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.footer-built-by {
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
}
.footer-built-by a {
  color: var(--green);
  text-decoration: none;
}
.footer-built-by a:hover {
  text-decoration: underline;
}

/* ── Quick Start Tabs ── */
.qs-tabs {
  display: flex;
  gap: 0;
  margin-bottom: 0;
  border-bottom: 1px solid var(--border);
}
.qs-tab {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-muted);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  padding: 0.6rem 1.2rem;
  cursor: pointer;
  transition: all 0.2s;
}
.qs-tab:hover {
  color: var(--text);
}
.qs-tab.active {
  color: var(--green);
  border-bottom-color: var(--green);
}
.qs-panel {
  display: none;
  padding-top: 1rem;
}
.qs-panel.active {
  display: block;
}
.qs-note {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.75rem;
  line-height: 1.6;
}
.qs-note code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 2px;
  padding: 0.1rem 0.3rem;
  color: var(--green);
}

/* ── Fade-in Animations ── */
.fade-in {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .hero {
    padding: 3rem 0 2.5rem;
  }

  .hero h1 {
    font-size: 2.2rem;
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .docs-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .arch-layer {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .layer-label {
    min-width: auto;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .mcp-tool-name {
    min-width: 160px;
  }

  .mcp-category {
    min-width: 80px;
  }
}

@media (max-width: 480px) {
  html {
    font-size: 14px;
  }

  .hero h1 {
    font-size: 1.8rem;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .docs-grid {
    grid-template-columns: 1fr;
  }

  .terminal-body {
    padding: 1.25rem;
  }

  .code-line {
    font-size: 0.75rem;
    overflow-x: auto;
  }

  .arch-connector {
    gap: 1.5rem;
  }
}