/* =============================================================================
   AgentiBridge — Dark Theme Styles
   ============================================================================= */

:root {
  --bg-primary: #0A0A0F;
  --bg-section: #111118;
  --bg-card: #1A1A24;
  --text-primary: #E0E0E0;
  --text-secondary: #888898;
  --accent-purple: #9E3FFD;
  --accent-orange: #E8875B;
  --accent-gradient: linear-gradient(135deg, #9E3FFD, #E8875B);
  --border-subtle: #2A2A3A;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

/* =============================================================================
   Header
   ============================================================================= */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
}

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

.logo {
  text-decoration: none;
  font-size: 1.25rem;
  font-weight: 700;
}

.logo-agenti {
  color: var(--text-primary);
}

.logo-bridge {
  color: var(--accent-purple);
}

.nav {
  display: flex;
  gap: 32px;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-link:hover {
  color: var(--text-primary);
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.mobile-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: 0.3s;
}

/* =============================================================================
   Buttons
   ============================================================================= */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 24px;
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--accent-gradient);
  color: #fff;
}

.btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
}

.btn-outline:hover {
  border-color: var(--accent-purple);
  color: var(--accent-purple);
}

.btn-sm {
  padding: 8px 18px;
  font-size: 0.8125rem;
}

.btn-lg {
  padding: 14px 32px;
  font-size: 1rem;
}

/* =============================================================================
   Hero
   ============================================================================= */

.hero {
  position: relative;
  padding: 160px 0 100px;
  text-align: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 50% 0%, rgba(158, 63, 253, 0.08) 0%, transparent 60%),
    repeating-linear-gradient(0deg, transparent, transparent 49px, rgba(42, 42, 58, 0.15) 50px),
    repeating-linear-gradient(90deg, transparent, transparent 49px, rgba(42, 42, 58, 0.15) 50px);
  pointer-events: none;
}

.hero-content {
  position: relative;
}

.badge {
  display: inline-block;
  padding: 6px 16px;
  border: 1px solid var(--border-subtle);
  border-radius: 100px;
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.badge-orange {
  border-color: rgba(232, 135, 91, 0.3);
  color: var(--accent-orange);
}

.hero-title {
  font-size: 2.75rem;
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.gradient-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 40px;
  line-height: 1.6;
}

.hero-banner {
  max-width: 720px;
  margin: 0 auto 40px;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border-subtle);
}

.hero-banner img {
  width: 100%;
  height: auto;
  display: block;
}

.hero-ctas {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 32px;
}

.hero-install {
  display: inline-block;
  padding: 12px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
}

.hero-install code {
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  color: var(--accent-purple);
}

/* =============================================================================
   Sections
   ============================================================================= */

.section {
  padding: 100px 0;
}

.section-alt {
  background: var(--bg-section);
}

.section-title {
  font-size: 2.25rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.section-title.left-align {
  text-align: left;
}

.section-sub {
  text-align: center;
  color: var(--text-secondary);
  font-size: 1.125rem;
  max-width: 600px;
  margin: 0 auto 60px;
}

/* =============================================================================
   Comparison Table
   ============================================================================= */

.comparison-table {
  overflow-x: auto;
}

.comparison-table table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-card);
  border-radius: 12px;
  overflow: hidden;
}

.comparison-table th,
.comparison-table td {
  padding: 16px 24px;
  text-align: left;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.9375rem;
}

.comparison-table th {
  background: rgba(26, 26, 36, 0.8);
  font-weight: 600;
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
}

.comparison-table tbody tr:last-child td {
  border-bottom: none;
}

.col-without {
  color: #666;
}

.col-with {
  color: #6ee7b7;
}

th.col-with {
  color: #6ee7b7;
}

th.col-without {
  color: #888;
}

/* =============================================================================
   Pillars
   ============================================================================= */

.pillars-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.pillar-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 32px;
  transition: border-color 0.2s;
}

.pillar-card:hover {
  border-color: var(--accent-purple);
}

.pillar-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.pillar-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.pillar-card p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.6;
}

/* =============================================================================
   Install Tabs
   ============================================================================= */

.install-tabs {
  max-width: 720px;
  margin: 0 auto 60px;
}

.tab-buttons {
  display: flex;
  gap: 4px;
  background: var(--bg-card);
  border-radius: 10px;
  padding: 4px;
  margin-bottom: 20px;
}

.tab-btn {
  flex: 1;
  padding: 10px 16px;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 0.8125rem;
  font-weight: 500;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
  font-family: var(--font-sans);
}

.tab-btn.active {
  background: var(--accent-purple);
  color: #fff;
}

.tab-btn:hover:not(.active) {
  color: var(--text-primary);
}

.tab-panel {
  display: none;
}

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

.code-block {
  background: #0D0D14;
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  overflow: hidden;
}

.code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: rgba(26, 26, 36, 0.5);
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.copy-btn {
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: 4px 12px;
  border-radius: 6px;
  font-size: 0.6875rem;
  cursor: pointer;
  transition: all 0.2s;
  font-family: var(--font-sans);
}

.copy-btn:hover {
  border-color: var(--accent-purple);
  color: var(--accent-purple);
}

.code-block pre {
  padding: 20px;
  overflow-x: auto;
}

.code-block code {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--text-primary);
}

.prompt {
  color: var(--accent-purple);
  user-select: none;
}

.output {
  color: #6ee7b7;
}

.install-note {
  color: var(--text-secondary);
  font-size: 0.8125rem;
  margin-top: 12px;
  text-align: center;
}

/* Steps */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  text-align: center;
}

.step-number {
  width: 40px;
  height: 40px;
  background: var(--accent-gradient);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 12px;
  color: #fff;
}

.step h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.step p {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

/* =============================================================================
   Stats Bar
   ============================================================================= */

.stats-bar {
  padding: 48px 0;
  background: var(--bg-section);
  border-top: 1px solid transparent;
  border-bottom: 1px solid transparent;
  border-image: var(--accent-gradient) 1;
}

.stats-inner {
  display: flex;
  justify-content: space-around;
  align-items: center;
  flex-wrap: wrap;
  gap: 32px;
}

.stat {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  display: block;
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-top: 4px;
}

/* =============================================================================
   AgentiCore
   ============================================================================= */

.agenticore-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.agenticore-desc {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 24px;
}

.agenticore-terminal {
  width: 100%;
}

/* =============================================================================
   MCP Tools
   ============================================================================= */

.tools-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.tools-category-title {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-purple);
  margin-bottom: 16px;
  font-weight: 600;
}

.tool-item {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px solid rgba(42, 42, 58, 0.4);
  font-size: 0.875rem;
}

.tool-item:last-child {
  border-bottom: none;
}

.tool-item code {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--accent-orange);
  white-space: nowrap;
}

.tool-item span {
  color: var(--text-secondary);
}

/* =============================================================================
   Architecture
   ============================================================================= */

.arch-flow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  padding: 40px 0;
}

.arch-node {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 24px 20px;
  text-align: center;
  min-width: 130px;
  transition: border-color 0.2s;
}

.arch-node:hover {
  border-color: var(--accent-purple);
}

.arch-icon {
  font-size: 1.75rem;
  margin-bottom: 8px;
}

.arch-label {
  font-size: 0.8125rem;
  font-weight: 600;
  line-height: 1.4;
}

.arch-label small {
  font-weight: 400;
  color: var(--text-secondary);
  font-size: 0.6875rem;
}

.arch-arrow {
  font-size: 1.5rem;
  color: var(--accent-purple);
}

/* =============================================================================
   FAQ
   ============================================================================= */

.faq-list {
  max-width: 720px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--border-subtle);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 20px 0;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  text-align: left;
  font-family: var(--font-sans);
  transition: color 0.2s;
}

.faq-question:hover {
  color: var(--accent-purple);
}

.faq-toggle {
  font-size: 1.25rem;
  color: var(--accent-purple);
  flex-shrink: 0;
  margin-left: 16px;
  transition: transform 0.2s;
}

.faq-item.open .faq-toggle {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-item.open .faq-answer {
  max-height: 300px;
}

.faq-answer p {
  padding-bottom: 20px;
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.7;
}

.faq-answer code {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--accent-orange);
  background: var(--bg-card);
  padding: 2px 6px;
  border-radius: 4px;
}

/* =============================================================================
   CTA Section
   ============================================================================= */

.cta-section {
  padding: 100px 0;
  background: var(--bg-section);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 100%, rgba(158, 63, 253, 0.06) 0%, transparent 60%);
  pointer-events: none;
}

.cta-content {
  position: relative;
}

.cta-content h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.cta-content p {
  color: var(--text-secondary);
  font-size: 1.125rem;
  margin-bottom: 32px;
}

.cta-install {
  margin-top: 24px;
}

.cta-install code {
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  color: var(--text-secondary);
}

/* =============================================================================
   Footer
   ============================================================================= */

.footer {
  padding: 48px 0;
  border-top: 1px solid var(--border-subtle);
}

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

.footer-tagline {
  color: var(--text-secondary);
  font-size: 0.8125rem;
  margin-top: 4px;
}

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

.footer-tagline a:hover {
  color: var(--accent-purple);
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color 0.2s;
}

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

.footer-copy {
  color: var(--text-secondary);
  font-size: 0.75rem;
  width: 100%;
  text-align: center;
  margin-top: 16px;
}

/* =============================================================================
   Responsive
   ============================================================================= */

@media (max-width: 1024px) {
  .hero-title {
    font-size: 2.25rem;
  }

  .section-title {
    font-size: 2rem;
  }

  .cta-content h2 {
    font-size: 2rem;
  }

  .pillars-grid,
  .tools-grid {
    gap: 20px;
  }

  .agenticore-section {
    gap: 40px;
  }
}

@media (max-width: 768px) {
  .hero {
    padding: 100px 0 48px;
  }

  .hero-title {
    font-size: 1.75rem;
    margin-bottom: 12px;
  }

  .hero-sub {
    font-size: 0.9375rem;
    margin-bottom: 24px;
  }

  .hero-banner {
    margin-bottom: 24px;
  }

  .hero-ctas {
    flex-direction: column;
    align-items: center;
    margin-bottom: 20px;
  }

  .nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(10, 10, 15, 0.98);
    flex-direction: column;
    padding: 24px;
    gap: 16px;
    border-bottom: 1px solid var(--border-subtle);
  }

  .nav.open {
    display: flex;
  }

  .mobile-toggle {
    display: flex;
  }

  .header-inner .btn-sm {
    display: none;
  }

  .section-title {
    font-size: 1.5rem;
  }

  .section-sub {
    font-size: 1rem;
    margin-bottom: 32px;
  }

  .section {
    padding: 48px 0;
  }

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

  .pillar-card {
    padding: 24px;
  }

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

  .agenticore-section {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .section-title.left-align {
    text-align: center;
  }

  .agenticore-content {
    text-align: center;
  }

  .steps-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .stats-bar {
    padding: 32px 0;
  }

  .stats-inner {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  .stat-number {
    font-size: 1.5rem;
  }

  .badge {
    font-size: 0.6875rem;
    margin-bottom: 20px;
  }

  .tab-buttons {
    flex-wrap: wrap;
  }

  .tab-btn {
    font-size: 0.75rem;
    padding: 8px 12px;
  }

  .arch-flow {
    flex-direction: column;
  }

  .arch-arrow {
    transform: rotate(90deg);
  }

  .arch-node {
    padding: 20px 16px;
    min-width: 120px;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }

  .footer-links {
    flex-wrap: wrap;
    justify-content: center;
  }

  .cta-section {
    padding: 60px 0;
  }

  .cta-content h2 {
    font-size: 1.5rem;
  }

  .code-block code {
    font-size: 0.8125rem;
  }

  .comparison-table th,
  .comparison-table td {
    padding: 12px 16px;
    font-size: 0.8125rem;
  }

  .faq-question {
    font-size: 0.9375rem;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: 80px 0 36px;
  }

  .hero-title {
    font-size: 1.375rem;
    margin-bottom: 8px;
  }

  .hero-sub {
    font-size: 0.875rem;
    margin-bottom: 16px;
  }

  .hero-banner {
    margin-bottom: 16px;
  }

  .hero-ctas {
    gap: 12px;
    margin-bottom: 16px;
  }

  .hero-install {
    padding: 10px 16px;
  }

  .hero-install code {
    font-size: 0.8125rem;
  }

  .container {
    padding: 0 12px;
  }

  .section {
    padding: 36px 0;
  }

  .section-title {
    font-size: 1.25rem;
  }

  .section-sub {
    font-size: 0.875rem;
    margin-bottom: 24px;
  }

  .pillar-card {
    padding: 20px;
  }

  .pillar-card h3 {
    font-size: 1.1rem;
  }

  .pillar-card p {
    font-size: 0.875rem;
  }

  .stat-number {
    font-size: 1.25rem;
  }

  .badge {
    font-size: 0.625rem;
  }

  .cta-section {
    padding: 48px 0;
  }

  .cta-content h2 {
    font-size: 1.25rem;
  }

  .cta-content p {
    font-size: 1rem;
  }

  .comparison-table th,
  .comparison-table td {
    padding: 10px 12px;
    font-size: 0.75rem;
  }

  .footer-links {
    gap: 16px;
  }

  .tab-btn {
    font-size: 0.6875rem;
  }

  .arch-node {
    min-width: 100px;
    padding: 16px 12px;
  }
}