/* ============================================
   SynapseClaw Landing Page Styles
   Warm Minimalist Theme — Anthropic/Claude inspired
   ============================================ */

/* ========== CSS Variables ========== */
:root {
  /* Light theme (default) - Warm Anthropic */
  --bg-primary: #FAF9F7;
  --bg-secondary: #F5F3EF;
  --bg-card: #FFFFFF;
  --bg-card-hover: #FDFCFB;
  
  --accent-primary: #D95A1E;
  --accent-secondary: #E57035;
  --accent-muted: #F5A623;
  
  --text-primary: #1A1A1A;
  --text-secondary: #4A4A4A;
  --text-muted: #6B6B6B;
  --text-placeholder: #9A9A9A;
  
  --border-default: #E5E3E0;
  --border-subtle: #F0EEEB;
  --border-focus: #D95A1E;
  
  --glow-primary: rgba(217, 90, 30, 0.15);
  --glow-secondary: rgba(229, 112, 53, 0.1);
  
  --status-success: #2D8A4E;
  --status-warning: #C9872C;
  --status-error: #C73E3E;
  
  --terminal-bg: #1E1E1E;
  --terminal-text: #E8E6E3;
  --terminal-prompt: #D95A1E;
  --terminal-comment: #6A6865;
  --terminal-success: #4CAF50;

  --glass-bg: rgba(255, 255, 255, 0.6);
  --glass-border: rgba(255, 255, 255, 0.3);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.04);
}

/* Dark theme */
.dark {
  --bg-primary: #171717;
  --bg-secondary: #1E1E1E;
  --bg-card: #262626;
  --bg-card-hover: #303030;
  
  --accent-primary: #E57035;
  --accent-secondary: #F5A623;
  --accent-muted: #C9872C;
  
  --text-primary: #E8E6E3;
  --text-secondary: #B8B6B3;
  --text-muted: #8A8885;
  --text-placeholder: #6A6865;
  
  --border-default: #404040;
  --border-subtle: #333333;
  --border-focus: #E57035;
  
  --glow-primary: rgba(229, 112, 53, 0.2);
  --glow-secondary: rgba(245, 166, 35, 0.15);
  
  --status-success: #4CAF50;
  --status-warning: #FFB74D;
  --status-error: #EF5350;

  --glass-bg: rgba(38, 38, 38, 0.6);
  --glass-border: rgba(255, 255, 255, 0.06);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

/* ========== Base Styles ========== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ========== Theme Toggle ========== */
.theme-toggle {
  position: fixed;
  top: 1.5rem;
  right: 1.5rem;
  z-index: 100;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid var(--border-default);
  background: var(--bg-card);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.theme-toggle:hover {
  border-color: var(--accent-primary);
  box-shadow: 0 4px 12px var(--glow-primary);
  transform: translateY(-1px);
}

body:not(.dark) #icon-sun,
body.dark #icon-moon,
body.auto #icon-auto {
  display: block !important;
}

/* ========== Typography ========== */
.text-gradient {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ========== Buttons ========== */
.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: 10px;
  font-weight: 500;
  font-size: 0.9375rem;
  text-decoration: none;
  transition: all 0.2s ease;
}

.btn-primary {
  background: var(--accent-primary);
  color: white;
  border: none;
}

.btn-primary:hover {
  background: var(--accent-primary-hover, #B84A18);
  box-shadow: 0 4px 12px var(--glow-primary);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-default);
}

.btn-secondary:hover {
  background: var(--bg-card);
  border-color: var(--accent-primary);
}

/* ========== Hero Section ========== */
.hero {
  position: relative;
  padding: 8rem 0 5rem;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, var(--glow-primary) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
  animation: fadeInUp 0.6s ease-out;
}

.hero-logo {
  display: block;
  width: clamp(120px, 20vw, 180px);
  height: auto;
  margin: 0 auto 1rem;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-default);
  border-radius: 9999px;
  margin-bottom: 1.5rem;
}

.hero-badge-dot {
  width: 6px;
  height: 6px;
  background: var(--status-success);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

.hero-badge-text {
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
}

.hero-title {
  font-size: clamp(3rem, 8vw, 5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: 1.5rem;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
}

/* ========== Stats Section ========== */
.stats {
  padding: 3rem 0;
  border-top: 1px solid var(--border-default);
  border-bottom: 1px solid var(--border-default);
}

.stats-grid {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 2rem;
}

.stat-item {
  text-align: center;
  padding: 0 1.5rem;
}

.stat-value {
  font-size: 3rem;
  font-weight: 700;
  color: var(--accent-primary);
  line-height: 1;
}

.stat-unit {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--accent-primary);
}

.stat-label {
  display: block;
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat-divider {
  width: 1px;
  height: 60px;
  background: var(--border-default);
}

@media (max-width: 768px) {
  .stat-divider {
    display: none;
  }
  
  .stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem 1rem;
  }
  
  .stat-item {
    padding: 0;
  }
}

/* ========== Section Headers ========== */
.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 4rem;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
  letter-spacing: -0.01em;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
}

/* ========== Features Section ========== */
.features {
  padding: 6rem 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: 16px;
  padding: 2rem;
  transition: all 0.3s ease;
  animation: fadeInUp 0.5s ease-out backwards;
}

.feature-card:nth-child(1) { animation-delay: 0ms; }
.feature-card:nth-child(2) { animation-delay: 60ms; }
.feature-card:nth-child(3) { animation-delay: 120ms; }
.feature-card:nth-child(4) { animation-delay: 180ms; }
.feature-card:nth-child(5) { animation-delay: 240ms; }
.feature-card:nth-child(6) { animation-delay: 300ms; }
.feature-card:nth-child(7) { animation-delay: 360ms; }
.feature-card:nth-child(8) { animation-delay: 420ms; }

.feature-card:hover {
  border-color: var(--accent-primary);
  box-shadow: 0 4px 16px var(--glow-primary);
  transform: translateY(-2px);
}

.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}

.glass-card:hover {
  background: var(--glass-bg);
  border-color: var(--accent-primary);
  box-shadow: 0 4px 24px var(--glow-primary), var(--glass-shadow);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  background: var(--icon-bg, var(--bg-secondary));
  color: var(--icon-color, var(--accent-primary));
}

.feature-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.feature-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.feature-desc code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8125rem;
  padding: 0.125rem 0.375rem;
  background: var(--bg-secondary);
  border-radius: 4px;
  color: var(--accent-primary);
}

/* ========== Architecture Section ========== */
.architecture {
  padding: 6rem 0;
  background: var(--bg-secondary);
}

.arch-diagram {
  max-width: 640px;
  margin: 0 auto;
}

.arch-layer {
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: 16px;
  padding: 1.5rem 2rem;
}

.arch-domain {
  border-color: var(--accent-primary);
  box-shadow: 0 4px 16px var(--glow-primary);
}

.arch-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--accent-primary);
  margin-bottom: 1rem;
}

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

.arch-item {
  padding: 0.5rem 1rem;
  background: var(--bg-secondary);
  border-radius: 8px;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.arch-arrow {
  display: flex;
  justify-content: center;
  padding: 1rem 0;
  color: var(--text-muted);
}

.arch-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
}

@media (max-width: 640px) {
  .arch-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ========== Documentation Section ========== */
.docs {
  padding: 6rem 0;
}

.docs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.docs-card {
  display: block;
  text-decoration: none;
  color: inherit;
  border-radius: 16px;
  padding: 2rem;
  transition: all 0.3s ease;
  animation: fadeInUp 0.5s ease-out backwards;
}

.docs-card:nth-child(1) { animation-delay: 0ms; }
.docs-card:nth-child(2) { animation-delay: 60ms; }
.docs-card:nth-child(3) { animation-delay: 120ms; }
.docs-card:nth-child(4) { animation-delay: 180ms; }
.docs-card:nth-child(5) { animation-delay: 240ms; }
.docs-card:nth-child(6) { animation-delay: 300ms; }

.docs-card:hover {
  border-color: var(--accent-primary);
  box-shadow: 0 4px 24px var(--glow-primary), var(--glass-shadow);
  transform: translateY(-2px);
}

.docs-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  background: var(--icon-bg, var(--bg-secondary));
  color: var(--icon-color, var(--accent-primary));
}

.docs-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.375rem;
}

.docs-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ========== Terminal Section ========== */
.terminal-section {
  padding: 6rem 0;
  background: var(--bg-secondary);
}

.terminal {
  max-width: 720px;
  margin: 0 auto;
  background: var(--terminal-bg);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.terminal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.875rem 1rem;
  background: #2D2D2D;
  border-bottom: 1px solid #404040;
}

.terminal-dots {
  display: flex;
  gap: 0.5rem;
}

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

.terminal-dot-red { background: #FF5F56; }
.terminal-dot-yellow { background: #FFBD2E; }
.terminal-dot-green { background: #27C93F; }

.terminal-title {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: #8A8885;
}

.terminal-copy {
  background: transparent;
  border: none;
  color: #8A8885;
  cursor: pointer;
  padding: 0.25rem;
  border-radius: 4px;
  transition: all 0.2s;
}

.terminal-copy:hover {
  color: var(--terminal-text);
  background: #404040;
}

.terminal-body {
  padding: 1.5rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.875rem;
  line-height: 1.8;
}

.terminal-line {
  display: flex;
  gap: 0.75rem;
}

.terminal-prompt {
  color: var(--terminal-prompt);
  font-weight: 500;
  user-select: none;
}

.terminal-command {
  color: var(--terminal-text);
}

.terminal-output {
  color: var(--terminal-comment);
}

.terminal-success {
  color: var(--terminal-success);
}

.terminal-cursor {
  color: var(--terminal-prompt);
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  50% { opacity: 0; }
}

/* ========== Footer ========== */
.footer {
  padding: 4rem 0 2rem;
  border-top: 1px solid var(--border-default);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 2rem;
  margin-bottom: 3rem;
}

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

.footer-logo-image {
  width: 42px;
  height: 42px;
  margin-bottom: 0.5rem;
}

.footer-logo {
  font-size: 1.5rem;
  font-weight: 700;
}

.footer-tagline {
  font-size: 0.9375rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
}

.footer-links {
  display: flex;
  gap: 2rem;
}

.footer-links a {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s;
}

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

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid var(--border-default);
}

.footer-bottom p {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* ========== Animations ========== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* ========== Scrollbar ========== */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--border-default);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* ========== Selection ========== */
::selection {
  background: var(--glow-primary);
  color: var(--text-primary);
}

/* ========== Reduced Motion ========== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}