:root {
  --bg-primary: #0a0c10;
  --bg-surface: #12161f;
  --bg-surface-hover: #181e2b;
  --border-color: #1e2638;
  --border-hover: #2e3b56;
  --text-main: #f0f4fc;
  --text-muted: #8c9bb5;
  --accent-cyan: #38bdf8;
  --accent-blue: #3b82f6;
  --accent-purple: #a855f7;
  --accent-green: #10b981;
  --accent-yellow: #f59e0b;
  --accent-red: #ef4444;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --font-sans: "Plus Jakarta Sans", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", monospace;
}

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

body {
  background-color: var(--bg-primary);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

.glow-bg {
  position: fixed;
  top: -20%;
  left: 20%;
  width: 60vw;
  height: 60vw;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.08) 0%, rgba(168, 85, 247, 0.04) 40%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* Header */
.site-header {
  border-bottom: 1px solid var(--border-color);
  background: rgba(10, 12, 16, 0.8);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 72px;
}

.logo-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  font-size: 28px;
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-weight: 800;
  font-size: 18px;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, #ffffff 0%, var(--accent-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-badge {
  font-size: 11px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-link:hover {
  color: var(--accent-cyan);
}

.btn-github {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
  transition: all 0.2s;
}

.btn-github:hover {
  border-color: var(--accent-cyan);
  background: var(--bg-surface-hover);
}

/* Hero */
.hero-section {
  padding: 80px 0 60px;
  text-align: center;
}

.pill-badge {
  display: inline-block;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.25);
  color: var(--accent-cyan);
  font-size: 12px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 24px;
}

.hero-title {
  font-size: 48px;
  font-weight: 800;
  letter-spacing: -1.5px;
  line-height: 1.15;
  margin-bottom: 20px;
  background: linear-gradient(135deg, #ffffff 30%, var(--accent-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 760px;
  margin: 0 auto 48px;
}

.stats-row {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.stat-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px 24px;
  min-width: 140px;
}

.stat-num {
  display: block;
  font-size: 28px;
  font-weight: 800;
  color: var(--accent-cyan);
  font-family: var(--font-mono);
}

.stat-label {
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  font-weight: 600;
  letter-spacing: 0.5px;
}

/* Section Common */
.section-install, .section-agents, .section-catalog {
  padding: 60px 0;
}

.section-title {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.8px;
  margin-bottom: 8px;
}

.section-desc {
  color: var(--text-muted);
  font-size: 15px;
  margin-bottom: 32px;
}

/* Tabs & Install */
.install-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.tab-btn {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

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

.tab-btn.active {
  background: rgba(56, 189, 248, 0.12);
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
}

.install-panel {
  display: none;
}

.install-panel.active {
  display: block;
}

.code-box {
  background: #0d1117;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 14px;
  color: #7ee787;
  margin-bottom: 12px;
}

.code-box code {
  word-break: break-all;
}

.btn-copy {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
  transition: all 0.2s;
}

.btn-copy:hover {
  background: var(--accent-cyan);
  color: #000;
  border-color: var(--accent-cyan);
}

.install-note {
  font-size: 13px;
  color: var(--text-muted);
}

/* Agents Grid */
.agents-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

.agent-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: all 0.2s;
}

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

.agent-icon {
  font-size: 32px;
  margin-bottom: 12px;
}

.agent-card h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
}

.agent-card p {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.agent-path {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent-cyan);
  background: rgba(56, 189, 248, 0.08);
  padding: 4px 8px;
  border-radius: 4px;
}

/* Catalog */
.catalog-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 16px;
}

.search-box input {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  padding: 12px 18px;
  font-size: 14px;
  width: 320px;
  font-family: var(--font-sans);
}

.search-box input:focus {
  outline: none;
  border-color: var(--accent-cyan);
}

.filter-bar {
  display: flex;
  gap: 8px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.filter-btn {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

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

.filter-btn.active {
  background: var(--text-main);
  color: var(--bg-primary);
  border-color: var(--text-main);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}

.skill-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all 0.2s;
}

.skill-card:hover {
  border-color: var(--accent-cyan);
  background: var(--bg-surface-hover);
}

.skill-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 10px;
}

.skill-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
  font-family: var(--font-mono);
}

.skill-cat {
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 999px;
  font-weight: 600;
}

.cat-Core { background: rgba(245, 158, 11, 0.15); color: var(--accent-yellow); }
.cat-Engineering { background: rgba(59, 130, 246, 0.15); color: var(--accent-blue); }
.cat-Security { background: rgba(239, 68, 68, 0.15); color: var(--accent-red); }
.cat-Testing { background: rgba(16, 185, 129, 0.15); color: var(--accent-green); }
.cat-Design { background: rgba(168, 85, 247, 0.15); color: var(--accent-purple); }
.cat-Guides { background: rgba(56, 189, 248, 0.15); color: var(--accent-cyan); }
.cat-Other { background: rgba(140, 155, 181, 0.15); color: var(--text-muted); }

.skill-desc {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 16px;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.skill-footer {
  display: flex;
  gap: 8px;
}

.btn-skill {
  flex: 1;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-skill:hover {
  background: var(--accent-cyan);
  color: #000;
  border-color: var(--accent-cyan);
}

/* Modal */
.modal-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.modal-backdrop.open {
  display: flex;
}

.modal-content {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  max-width: 720px;
  width: 100%;
  max-height: 80vh;
  overflow-y: auto;
  padding: 32px;
  position: relative;
}

.modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 28px;
  cursor: pointer;
}

.modal-close:hover {
  color: var(--text-main);
}

.modal-content pre {
  background: #0d1117;
  padding: 16px;
  border-radius: var(--radius-sm);
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 13px;
  color: #e6edf3;
  margin-top: 16px;
  white-space: pre-wrap;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border-color);
  padding: 40px 0;
  margin-top: 80px;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: 16px;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--accent-cyan);
}

@media (max-width: 768px) {
  .hero-title { font-size: 32px; }
  .search-box input { width: 100%; }
  .catalog-header { flex-direction: column; align-items: stretch; }
  .header-container { flex-direction: column; height: auto; padding: 16px 0; gap: 12px; }
}