/* ============================================================
   GoClaw Marketing Site - Custom Styles
   Warm + Bold dark theme with red/orange accent palette
   ============================================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Lexend:wght@600;700&family=Source+Sans+3:wght@400;500;600&display=swap');

/* --- CSS Custom Properties --- */
:root {
  --color-primary: #E63946;
  --color-secondary: #F97316;
  --color-amber: #F59E0B;
  --color-bg-dark: #0F0F1A;
  --color-bg-card: #1A1A2E;
  --color-bg-card-hover: #20203A;
  --color-text-light: #F8FAFC;
  --color-text-muted: #94A3B8;
  --color-border: rgba(255, 255, 255, 0.08);
  --gradient-cta: linear-gradient(135deg, #E63946, #F97316);
  --gradient-text: linear-gradient(135deg, #E63946, #F97316, #F59E0B);
  --glow-red: 0 0 30px rgba(230, 57, 70, 0.3);
  --glow-orange: 0 0 30px rgba(249, 115, 22, 0.3);
  --transition-base: 200ms ease;
  --transition-medium: 300ms ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Source Sans 3', system-ui, sans-serif;
  background-color: var(--color-bg-dark);
  color: var(--color-text-light);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Lexend', system-ui, sans-serif;
  font-weight: 700;
  line-height: 1.2;
}

/* --- Accessibility: Focus States --- */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: 4px;
}

/* --- Accessibility: Reduced Motion --- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .animate-on-scroll {
    opacity: 1 !important;
    transform: none !important;
  }
}

/* --- Gradient Text Utility --- */
.gradient-text {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ============================================================
   NAVBAR
   ============================================================ */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  transition: background var(--transition-medium), box-shadow var(--transition-medium);
}

#navbar.scrolled {
  background: rgba(15, 15, 26, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--color-border);
}

.nav-link {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition-base);
  cursor: pointer;
}

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

/* --- Language Switcher --- */
.lang-btn {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  border-radius: 6px;
  padding: 4px 10px;
  font-size: 0.8rem;
  font-family: 'Source Sans 3', sans-serif;
  cursor: pointer;
  transition: border-color var(--transition-base), color var(--transition-base);
}

.lang-btn:hover,
.lang-btn.active {
  border-color: var(--color-primary);
  color: var(--color-text-light);
}

/* --- GitHub Star Button --- */
.github-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--color-border);
  color: var(--color-text-light);
  text-decoration: none;
  border-radius: 8px;
  padding: 6px 14px;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition-base), border-color var(--transition-base);
}

.github-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

/* --- CTA Button (Primary) --- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--gradient-cta);
  color: white;
  text-decoration: none;
  border-radius: 8px;
  padding: 10px 22px;
  font-size: 0.9rem;
  font-weight: 600;
  font-family: 'Source Sans 3', sans-serif;
  cursor: pointer;
  border: none;
  transition: opacity var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
  box-shadow: 0 4px 15px rgba(230, 57, 70, 0.3);
}

.btn-primary:hover {
  opacity: 0.92;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(230, 57, 70, 0.4);
}

/* --- CTA Button (Outline) --- */
.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--color-text-light);
  text-decoration: none;
  border-radius: 8px;
  padding: 10px 22px;
  font-size: 0.9rem;
  font-weight: 600;
  font-family: 'Source Sans 3', sans-serif;
  cursor: pointer;
  border: 1.5px solid rgba(255, 255, 255, 0.2);
  transition: border-color var(--transition-base), background var(--transition-base);
}

.btn-outline:hover {
  border-color: rgba(255, 255, 255, 0.4);
  background: rgba(255, 255, 255, 0.05);
}

/* ============================================================
   HERO SECTION
   ============================================================ */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  position: relative;
  overflow: hidden;
}

/* Radial gradient glow behind hero */
#hero::before {
  content: '';
  position: absolute;
  top: 20%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 500px;
  background: radial-gradient(ellipse, rgba(230, 57, 70, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

/* --- Terminal Window --- */
.terminal-window {
  background: #0D0D1A;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  overflow: hidden;
  font-family: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
  font-size: 0.8rem;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5), var(--glow-red);
}

.terminal-header {
  background: #1A1A2E;
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.terminal-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.terminal-body {
  padding: 20px;
  line-height: 1.8;
}

.terminal-line {
  display: block;
}

.terminal-prompt {
  color: var(--color-primary);
}

.terminal-cmd {
  color: #7DD3FC;
}

.terminal-comment {
  color: #64748B;
  font-style: italic;
}

.terminal-output {
  color: #86EFAC;
}

.terminal-output-dim {
  color: var(--color-text-muted);
}

.terminal-cursor {
  display: inline-block;
  width: 8px;
  height: 14px;
  background: var(--color-primary);
  vertical-align: middle;
  animation: cursor-blink 1.1s step-end infinite;
}

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

/* ============================================================
   TRUST BAR
   ============================================================ */
#trust-bar {
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

/* ============================================================
   FEATURE CARDS (Why GoClaw)
   ============================================================ */
.feature-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 28px;
  transition: border-color var(--transition-medium), box-shadow var(--transition-medium), transform var(--transition-medium), background var(--transition-medium);
  cursor: default;
}

.feature-card:hover {
  border-color: rgba(230, 57, 70, 0.4);
  box-shadow: var(--glow-red);
  transform: translateY(-4px);
  background: var(--color-bg-card-hover);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(230, 57, 70, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: var(--color-primary);
  flex-shrink: 0;
}

.feature-icon svg {
  width: 24px;
  height: 24px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* Icon color variants */
.feature-icon.orange {
  background: rgba(249, 115, 22, 0.12);
  color: var(--color-secondary);
}
.feature-icon.amber {
  background: rgba(245, 158, 11, 0.12);
  color: var(--color-amber);
}
.feature-icon.green {
  background: rgba(34, 197, 94, 0.12);
  color: #22C55E;
}
.feature-icon.blue {
  background: rgba(59, 130, 246, 0.12);
  color: #3B82F6;
}
.feature-icon.purple {
  background: rgba(168, 85, 247, 0.12);
  color: #A855F7;
}

/* ============================================================
   COMPARISON TABLE
   ============================================================ */
.comparison-table-wrapper {
  overflow-x: auto;
  border-radius: 16px;
  border: 1px solid var(--color-border);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 640px;
}

.comparison-table th {
  padding: 16px 20px;
  text-align: center;
  font-family: 'Lexend', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  border-bottom: 1px solid var(--color-border);
  background: rgba(255, 255, 255, 0.03);
}

.comparison-table th:first-child {
  text-align: left;
}

.comparison-table th.goclaw-col {
  background: rgba(230, 57, 70, 0.08);
  color: var(--color-primary);
  border-bottom-color: rgba(230, 57, 70, 0.3);
}

.comparison-table td {
  padding: 14px 20px;
  text-align: center;
  font-size: 0.9rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  color: var(--color-text-muted);
}

.comparison-table td:first-child {
  text-align: left;
  color: var(--color-text-light);
  font-weight: 500;
}

.comparison-table td.goclaw-col {
  background: rgba(230, 57, 70, 0.04);
  color: var(--color-text-light);
  font-weight: 500;
}

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

.comparison-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

.comparison-table tr:hover td.goclaw-col {
  background: rgba(230, 57, 70, 0.07);
}

/* Check / X marks */
.check-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #22C55E;
}

.x-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #EF4444;
}

.partial-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-amber);
}

/* ============================================================
   ARCHITECTURE DIAGRAM
   ============================================================ */
#architecture {
  position: relative;
}

.arch-diagram {
  position: relative;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  padding: 40px;
  overflow: hidden;
}

.arch-layer {
  border-radius: 12px;
  padding: 16px 24px;
  margin-bottom: 12px;
  border: 1px solid;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: transform var(--transition-base);
}

.arch-layer:hover {
  transform: translateX(4px);
}

.arch-layer-channels {
  border-color: rgba(59, 130, 246, 0.4);
  background: rgba(59, 130, 246, 0.06);
}
.arch-layer-gateway {
  border-color: rgba(230, 57, 70, 0.4);
  background: rgba(230, 57, 70, 0.06);
}
.arch-layer-security {
  border-color: rgba(245, 158, 11, 0.4);
  background: rgba(245, 158, 11, 0.06);
}
.arch-layer-engine {
  border-color: rgba(249, 115, 22, 0.4);
  background: rgba(249, 115, 22, 0.06);
}
.arch-layer-llm {
  border-color: rgba(168, 85, 247, 0.4);
  background: rgba(168, 85, 247, 0.06);
}
.arch-layer-data {
  border-color: rgba(34, 197, 94, 0.4);
  background: rgba(34, 197, 94, 0.06);
}

.arch-connector {
  display: flex;
  justify-content: center;
  padding: 4px 0;
  color: var(--color-text-muted);
}

.arch-connector svg {
  width: 16px;
  height: 16px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.arch-layer-label {
  font-family: 'Lexend', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  min-width: 140px;
}

.arch-layer-items {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.arch-tag {
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 500;
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-text-light);
  white-space: nowrap;
}

/* ============================================================
   CHANNELS & INTEGRATIONS
   ============================================================ */
.integration-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 12px;
}

.integration-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-align: center;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  cursor: default;
  transition: border-color var(--transition-base), transform var(--transition-base), color var(--transition-base);
}

.integration-card:hover {
  border-color: rgba(249, 115, 22, 0.4);
  color: var(--color-text-light);
  transform: translateY(-2px);
}

.integration-card svg {
  width: 28px;
  height: 28px;
}

/* ============================================================
   CTA SECTION
   ============================================================ */
#cta {
  position: relative;
  overflow: hidden;
}

#cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(230, 57, 70, 0.15), rgba(249, 115, 22, 0.1));
  pointer-events: none;
}

/* ============================================================
   SCROLL ANIMATIONS
   ============================================================ */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Staggered delay for children */
.stagger-children .animate-on-scroll:nth-child(1) { transition-delay: 0ms; }
.stagger-children .animate-on-scroll:nth-child(2) { transition-delay: 80ms; }
.stagger-children .animate-on-scroll:nth-child(3) { transition-delay: 160ms; }
.stagger-children .animate-on-scroll:nth-child(4) { transition-delay: 240ms; }
.stagger-children .animate-on-scroll:nth-child(5) { transition-delay: 320ms; }
.stagger-children .animate-on-scroll:nth-child(6) { transition-delay: 400ms; }

/* ============================================================
   MOBILE MENU
   ============================================================ */
#mobile-menu {
  display: none;
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  background: rgba(15, 15, 26, 0.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  padding: 20px 24px;
  z-index: 99;
  flex-direction: column;
  gap: 16px;
}

#mobile-menu.open {
  display: flex;
}

.mobile-nav-link {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 1rem;
  font-weight: 500;
  padding: 8px 0;
  border-bottom: 1px solid var(--color-border);
  cursor: pointer;
  transition: color var(--transition-base);
}

.mobile-nav-link:last-child {
  border-bottom: none;
}

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

/* ============================================================
   FOOTER
   ============================================================ */
footer {
  border-top: 1px solid var(--color-border);
}

.footer-link {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color var(--transition-base);
  cursor: pointer;
}

.footer-link:hover {
  color: var(--color-text-light);
}

/* ============================================================
   SECTION HEADINGS
   ============================================================ */
.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 12px;
}

/* ============================================================
   RESPONSIVE ADJUSTMENTS
   ============================================================ */
@media (max-width: 768px) {
  .arch-layer-label {
    min-width: 90px;
    font-size: 0.75rem;
  }

  .arch-tag {
    font-size: 0.7rem;
    padding: 2px 8px;
  }

  .arch-diagram {
    padding: 20px 16px;
  }

  .comparison-table th,
  .comparison-table td {
    padding: 12px 14px;
    font-size: 0.8rem;
  }
}

@media (max-width: 480px) {
  .terminal-body {
    padding: 14px;
    font-size: 0.72rem;
  }
}