/**
 * SleepyTube Landing Page Styles
 * Modern design inspired by mem0.ai
 */

:root {
  --color-primary: #667eea;
  --color-primary-dark: #5a67d8;
  --color-secondary: #4caf50;
  --color-background: #0a0a0a;
  --color-surface: #151515;
  --color-surface-elevated: #1f1f1f;
  --color-text: #ffffff;
  --color-text-secondary: #a0a0a0;
  --color-border: #2a2a2a;
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 48px;
  --spacing-xxl: 96px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 48px rgba(0, 0, 0, 0.6);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--color-background);
  color: var(--color-text);
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(10, 10, 10, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  padding: var(--spacing-md) 0;
  z-index: 1000;
  transition: all 0.3s ease;
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.logo-icon {
  border-radius: 6px;
  object-fit: contain;
  width: 32px;
  height: 32px;
}

.logo-text {
  font-size: 20px;
  font-weight: 700;
}

.nav-links {
  display: flex;
  gap: var(--spacing-lg);
  align-items: center;
}

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

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

/* Hero Section */
.hero {
  padding: calc(var(--spacing-xxl) + 60px) 0 var(--spacing-xxl) 0;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 1000px;
  height: 1000px;
  background: radial-gradient(circle, rgba(102, 126, 234, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-md);
  background: rgba(102, 126, 234, 0.1);
  border: 1px solid rgba(102, 126, 234, 0.3);
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--spacing-lg);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.hero-title {
  font-size: 56px;
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: var(--spacing-lg);
}

.gradient-text {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: 18px;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
  max-width: 500px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s;
  border: none;
  cursor: pointer;
  white-space: nowrap;
}

.button-primary {
  background: var(--color-primary);
  color: white;
}

.button-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(102, 126, 234, 0.4);
}

.button-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

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

.button-large {
  padding: 18px 36px;
  font-size: 16px;
}

.button-disabled {
  background: rgba(255, 255, 255, 0.03);
  color: var(--color-text-secondary);
  cursor: not-allowed;
  opacity: 0.6;
}

.button-disabled:hover {
  transform: none;
  box-shadow: none;
}

.cta-button {
  background: var(--color-primary);
  color: white;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  transition: all 0.2s;
}

.cta-button:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
}

.hero-stats {
  display: flex;
  gap: var(--spacing-xl);
}

.stat {
  text-align: left;
}

.stat-value {
  font-size: 32px;
  font-weight: 700;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 14px;
  color: var(--color-text-secondary);
}

/* Demo Window */
.hero-visual {
  position: relative;
}

.demo-window {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
}

.demo-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--color-surface-elevated);
  border-bottom: 1px solid var(--color-border);
}

.demo-dots {
  display: flex;
  gap: 6px;
}

.demo-dots span {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #444;
}

.demo-dots span:nth-child(1) { background: #ff5f57; }
.demo-dots span:nth-child(2) { background: #ffbd2e; }
.demo-dots span:nth-child(3) { background: #28ca42; }

.demo-title {
  font-size: 12px;
  color: var(--color-text-secondary);
}

.demo-content {
  padding: var(--spacing-xl);
}

.waveform-container {
  position: relative;
  margin: var(--spacing-lg) 0;
  padding: var(--spacing-md);
  background: rgba(255, 255, 255, 0.02);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
}

.waveform-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-secondary);
}

.waveform-container:first-child .waveform-label {
  color: #ff4444;
}

.waveform-container:last-child .waveform-label {
  color: #4caf50;
}

.waveform {
  width: 100%;
  height: 80px;
}

.arrow-down {
  text-align: center;
  color: var(--color-primary);
  margin: var(--spacing-xl) 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
}

.arrow-down span {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Features Section */
.features {
  padding: var(--spacing-xxl) 0;
  background: var(--color-surface);
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.section-badge {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-md);
  background: rgba(102, 126, 234, 0.1);
  border: 1px solid rgba(102, 126, 234, 0.3);
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.section-header h2 {
  font-size: 42px;
  font-weight: 700;
  margin-bottom: var(--spacing-md);
}

.section-header p {
  font-size: 18px;
  color: var(--color-text-secondary);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

.feature-card {
  padding: var(--spacing-xl);
  background: var(--color-surface-elevated);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  transition: all 0.3s;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: rgba(102, 126, 234, 0.3);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.feature-card p {
  color: var(--color-text-secondary);
  font-size: 14px;
  line-height: 1.6;
}

/* AI Feature Card Highlight */
.feature-card-highlight {
  position: relative;
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.05) 0%, rgba(249, 115, 22, 0.05) 100%);
  border: 2px solid;
  border-image: linear-gradient(135deg, #F59E0B 0%, #F97316 100%) 1;
}

.feature-card-highlight::before {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: linear-gradient(135deg, #F59E0B 0%, #F97316 100%);
  border-radius: var(--radius-md);
  z-index: -1;
  opacity: 0.1;
}

.feature-badge {
  display: inline-block;
  background: linear-gradient(135deg, #F59E0B 0%, #F97316 100%);
  color: white;
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
}

.feature-tech {
  display: flex;
  gap: 8px;
  margin-top: 12px;
  flex-wrap: wrap;
}

.tech-tag {
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.3);
  color: #F59E0B;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 500;
}

/* How It Works Section */
.how-it-works {
  padding: var(--spacing-xxl) 0;
}

.process-flow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-lg);
  margin: var(--spacing-xl) 0;
}

.process-step {
  flex: 1;
  text-align: center;
  padding: var(--spacing-xl);
  background: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.process-number {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--spacing-md) auto;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 20px;
}

.process-step h3 {
  margin-bottom: var(--spacing-sm);
}

.process-arrow {
  font-size: 24px;
  color: var(--color-primary);
}

.tech-details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.code-block {
  padding: var(--spacing-lg);
  background: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  font-family: 'Monaco', 'Courier New', monospace;
  font-size: 13px;
  color: #7dd3fc;
  overflow-x: auto;
  line-height: 1.8;
}

.code-comment { color: #6b7280; }
.code-function { color: #a78bfa; font-weight: 600; }
.code-output { color: #34d399; }

.tech-highlights h3 {
  font-size: 24px;
  margin-bottom: var(--spacing-lg);
}

.tech-highlights ul {
  list-style: none;
}

.tech-highlights li {
  margin-bottom: var(--spacing-lg);
  padding-left: var(--spacing-lg);
  border-left: 2px solid var(--color-primary);
}

.tech-highlights strong {
  display: block;
  font-size: 16px;
  margin-bottom: var(--spacing-xs);
  color: var(--color-text);
}

.tech-highlights p {
  color: var(--color-text-secondary);
  font-size: 14px;
  line-height: 1.6;
}

/* Installation Section */
.install-section {
  padding: var(--spacing-xxl) 0;
  background: var(--color-surface);
}

.install-methods {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.install-card {
  padding: var(--spacing-xl);
  background: var(--color-surface-elevated);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  text-align: center;
  transition: all 0.3s;
}

.install-card-active {
  border-color: var(--color-primary);
  background: rgba(102, 126, 234, 0.05);
}

.install-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--sg-md) auto;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
}all-card h3 {
  font-size: 20px;
  margin-bottom: var(--spacing-xs);
}

.coming-soon {
  font-size:px;
  color: var(--color-text-secondary);
  font-weight: 600;
  text-transform: uppercase;
  margin-bottom: var(--spacing-sm);
}

.available-now {
  font-size: 12px;
  color: var(--color-secondary);
  font-weight: 600;
  text-transform: uppercase;
  margin-bottvar(--spacing-sm);
}

.install-card p {
  color: var(--color-text-secondary);
  font-size: 14px;
  margin-bottom: var(--s-md);
  line-height: 1.6;
}

/* Install Steps Section */
.install-steps {
  max-width: 800px;
  margin: var(--spacing-xl) auto 0;
  padding: var(--spacing-xl);
  background: var(--color-surface-elevated);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.install-steps h3 {
  font-size: 20px;
  margin-bottom: var(--spacing-lg);
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.install-steps ol {
  padding-left: var(--spacing-lg);
  margin: 0;
}

.install-steps li {
  margin-bottom: var(--spacing-md);
  color: var(--color-text-secondary);
  line-height: 1.8;
  font-size: 15px;
}

.install-steps code {
  background: rgba(102, 126, 234, 0.1);
  padding: 2px 8px;
  border-radius: 4px;
  font-family: 'Monaco', monospace;
  font-size: 13px;
  color: var(--color-primary);
}

/* Steps Code Block */
.steps-code-block {
  background: rgba(15, 15, 15, 0.8);
  border-radius: var(--radius-md);
  padding: var(--spacing-xl);
  border: 1px solid rgba(102, 126, 234, 0.15);
  margin-top: var(--spacing-lg);
}

.steps-code-block ol {
  margin: 0;
  padding-left: 0;
  counter-reset: step-counter;
  list-style: none;
}

.steps-code-block li {
  position: relative;
  padding-left: 40px;
  margin-bottom: var(--spacing-lg);
  color: var(--color-text);
  line-height: 1.8;
  font-size: 15px;
}

.steps-code-block li:last-child {
  margin-bottom: 0;
}

.steps-code-block li::before {
  content: counter(step-counter);
  counter-increment: step-counter;
  position: absolute;
  left: 0;
  top: 0;
  width: 28px;
  height: 28px;
  background: linear-gradient(135deg, var(--color-primary) 0%, #764ba2 100%);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 13px;
}

.steps-code-block code {
  background: rgba(102, 126, 234, 0.15);
  padding: 3px 10px;
  border-radius: 4px;
  font-family: 'Monaco', 'Courier New', monospace;
  font-size: 13px;
  color: #a5b4fc;
  border: 1px solid rgba(102, 126, 234, 0.2);
}

.steps-code-block strong {
  color: var(--color-primary);
  font-weight: 600;
}

.steps-code-block a {
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: all 0.2s;
}

.steps-code-block a:hover {
  border-bottom-color: var(--color-primary);
  color: #8b9bff;
}
  }
  
  .process-arrow {
    transform: rotate(90deg);
  }
  
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
  
  .hero-actions .button {
    width: 100%;
    justify-content: center;
  }
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-content,
.hero-visual,
.feature-card,
.process-step {
  animation: fadeInUp 0.6s ease-out;
}

.feature-card:nth-child(1) { animation-delay: 0.1s; }
.feature-card:nth-child(2) { animation-delay: 0.2s; }
.feature-card:nth-child(3) { animation-delay: 0.3s; }
.feature-card:nth-child(4) { animation-delay: 0.4s; }
.feature-card:nth-child(5) { animation-delay: 0.5s; }
.feature-card:nth-child(6) { animation-delay: 0.6s; }
.feature-card:nth-child(7) { animation-delay: 0.7s; }

/* Install Section Enhancements */
.install-note {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
  background: var(--color-surface-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-top: var(--spacing-xl);
}

.install-note svg {
  flex-shrink: 0;
  color: var(--color-primary);
  margin-top: 2px;
}

.install-note div {
  flex: 1;
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

.install-note strong {
  color: var(--color-text);
  font-weight: 600;
}

.install-note a {
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}

.install-note a:hover {
  border-bottom-color: var(--color-primary);
}

.button svg {
  vertical-align: middle;
}

.available-now {
  display: inline-block;
  padding: 4px 12px;
  background: linear-gradient(135deg, #4caf50 0%, #45a049 100%);
  color: white;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
  margin: var(--spacing-sm) 0;
}