/* ========================================
   Root Variables and Theme Setup
   ======================================== */
:root {
  /* Colors - Light Theme */
  --color-bg: #ffffff;
  --color-bg-secondary: #f9fafb;
  --color-bg-tertiary: #f3f4f6;
  --color-text: #111827;
  --color-text-secondary: #6b7280;
  --color-text-tertiary: #9ca3af;
  --color-border: #e5e7eb;
  --color-primary: #6366f1;
  --color-primary-dark: #4f46e5;
  --color-primary-light: #818cf8;
  --color-accent: #8b5cf6;
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #ef4444;
  
  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Consolas', 'Monaco', monospace;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  
  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
  
  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Theme */
[data-theme="dark"] {
  --color-bg: #0a0a0a;
  --color-bg-secondary: #171717;
  --color-bg-tertiary: #262626;
  --color-text: #fafafa;
  --color-text-secondary: #a3a3a3;
  --color-text-tertiary: #737373;
  --color-border: #404040;
  --color-primary: #818cf8;
  --color-primary-dark: #6366f1;
  --color-primary-light: #a5b4fc;
  --color-accent: #a78bfa;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.2);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.3);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.4);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.5);
}

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

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

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color var(--transition-base), color var(--transition-base);
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

/* ========================================
   Container
   ======================================== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-xl);
  position: relative;
  z-index: 1;
}

@media (max-width: 768px) {
  .container {
    padding: var(--spacing-md);
  }
}

/* ========================================
   Theme Toggle
   ======================================== */
.theme-toggle {
  position: fixed;
  top: var(--spacing-xl);
  right: var(--spacing-xl);
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-base);
  z-index: 1000;
}

.theme-toggle:hover {
  background-color: var(--color-bg-tertiary);
  transform: scale(1.05);
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
  transition: all var(--transition-base);
}

.theme-toggle .sun-icon {
  display: block;
}

.theme-toggle .moon-icon {
  display: none;
}

[data-theme="dark"] .theme-toggle .sun-icon {
  display: none;
}

[data-theme="dark"] .theme-toggle .moon-icon {
  display: block;
}

/* ========================================
   Header
   ======================================== */
.header {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.logo {
  display: inline-block;
}

.logo-text {
  font-size: 1.5rem;
  font-weight: 700;
  font-family: var(--font-mono);
  letter-spacing: -0.02em;
}

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

/* ========================================
   Hero Section
   ======================================== */
.hero {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: var(--spacing-sm) var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
  font-size: 0.875rem;
  font-weight: 500;
}

.status-dot {
  width: 8px;
  height: 8px;
  background-color: var(--color-success);
  border-radius: var(--radius-full);
  animation: pulse 2s infinite;
}

.hero-title {
  font-size: clamp(2.5rem, 8vw, 4.5rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: var(--spacing-xl);
  letter-spacing: -0.03em;
}

.hero-title .line {
  display: block;
}

.gradient-text {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: 1.25rem;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto var(--spacing-2xl);
  line-height: 1.8;
}

/* ========================================
   Terminal Preview
   ======================================== */
.terminal-preview {
  max-width: 600px;
  margin: 0 auto var(--spacing-2xl);
  background-color: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  font-family: var(--font-mono);
  box-shadow: var(--shadow-lg);
}

.terminal-header {
  background-color: var(--color-bg-secondary);
  padding: var(--spacing-sm) var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--color-border);
}

.terminal-dots {
  display: flex;
  gap: var(--spacing-xs);
}

.terminal-dots span {
  width: 12px;
  height: 12px;
  border-radius: var(--radius-full);
  background-color: var(--color-border);
}

.terminal-dots span:nth-child(1) {
  background-color: #ef4444;
}

.terminal-dots span:nth-child(2) {
  background-color: #f59e0b;
}

.terminal-dots span:nth-child(3) {
  background-color: #10b981;
}

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

.terminal-content {
  padding: var(--spacing-lg);
}

.terminal-line {
  margin-bottom: var(--spacing-sm);
  font-size: 0.875rem;
}

.terminal-prompt {
  color: var(--color-primary);
  margin-right: var(--spacing-sm);
}

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

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

.terminal-url {
  color: var(--color-success);
  font-weight: 600;
}

/* ========================================
   Subdomain Preview
   ======================================== */
.subdomain-preview {
  max-width: 500px;
  margin: 0 auto;
}

.subdomain-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-sm);
}

.subdomain-input-group {
  display: flex;
  align-items: center;
  background-color: var(--color-bg-secondary);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xs);
  transition: all var(--transition-base);
}

.subdomain-input-group:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.subdomain-input {
  flex: 1;
  background: none;
  border: none;
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 1rem;
  font-family: var(--font-mono);
  color: var(--color-text);
  outline: none;
}

.subdomain-input::placeholder {
  color: var(--color-text-tertiary);
}

.subdomain-suffix {
  padding: var(--spacing-sm) var(--spacing-md);
  font-family: var(--font-mono);
  color: var(--color-text-secondary);
  font-weight: 500;
}

.subdomain-result {
  margin-top: var(--spacing-sm);
  font-size: 0.875rem;
  color: var(--color-primary);
  font-family: var(--font-mono);
  min-height: 1.5rem;
}

/* ========================================
   Features Section
   ======================================== */
.features {
  margin-bottom: var(--spacing-3xl);
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: var(--spacing-2xl);
  letter-spacing: -0.02em;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-xl);
}

.feature-card {
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  transition: all var(--transition-base);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

.feature-icon {
  width: 48px;
  height: 48px;
  background-color: var(--color-primary);
  background-image: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
}

.feature-icon svg {
  width: 24px;
  height: 24px;
  color: white;
}

.feature-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.feature-card p {
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ========================================
   Coming Soon Section
   ======================================== */
.coming-soon {
  margin-bottom: var(--spacing-3xl);
}

.timeline {
  max-width: 600px;
  margin: 0 auto var(--spacing-3xl);
}

.timeline-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
  position: relative;
}

.timeline-item:not(:last-child)::after {
  content: '';
  position: absolute;
  left: 11px;
  top: 32px;
  width: 2px;
  height: calc(100% + var(--spacing-xl));
  background-color: var(--color-border);
}

.timeline-dot {
  width: 24px;
  height: 24px;
  border-radius: var(--radius-full);
  background-color: var(--color-bg-secondary);
  border: 2px solid var(--color-border);
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}

.timeline-item.active .timeline-dot {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
}

.timeline-content h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.timeline-content p {
  color: var(--color-text-secondary);
}


/* ========================================
   Footer
   ======================================== */
.footer {
  text-align: center;
  padding: var(--spacing-2xl) 0;
  border-top: 1px solid var(--color-border);
}

.footer-text {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-sm);
}

.heart {
  color: var(--color-error);
  display: inline-block;
  animation: heartbeat 1.5s ease-in-out infinite;
}

.footer-copyright {
  font-size: 0.875rem;
  color: var(--color-text-tertiary);
}

/* ========================================
   Background Effects
   ======================================== */
.bg-gradient {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 20% 80%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
              radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.1) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

.bg-grid {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    linear-gradient(rgba(99, 102, 241, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99, 102, 241, 0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
  z-index: 0;
}

[data-theme="dark"] .bg-gradient {
  background: radial-gradient(circle at 20% 80%, rgba(129, 140, 248, 0.15) 0%, transparent 50%),
              radial-gradient(circle at 80% 20%, rgba(167, 139, 250, 0.15) 0%, transparent 50%);
}

/* ========================================
   Animations
   ======================================== */
@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

@keyframes heartbeat {
  0%, 100% {
    transform: scale(1);
  }
  10%, 30% {
    transform: scale(1.1);
  }
  20% {
    transform: scale(1.05);
  }
}

/* ========================================
   Utility Classes
   ======================================== */
.fade-in {
  animation: fadeIn 0.6s ease-out;
}

.fade-in-up {
  animation: fadeInUp 0.8s ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

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