:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #111118;
  --bg-tertiary: #1a1a24;
  --fg-primary: #ffffff;
  --fg-secondary: #a0a0b0;
  --fg-muted: #606070;
  --accent: #6366f1;
  --accent-light: #818cf8;
  --accent-dim: rgba(99, 102, 241, 0.15);
  --success: #22c55e;
  --warning: #f59e0b;
  --border: rgba(255, 255, 255, 0.08);
  --gradient-start: #6366f1;
  --gradient-end: #a855f7;
  --radius: 12px;
  --radius-sm: 8px;
}

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

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--fg-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  line-height: 1.2;
}

/* Nav */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 20px 40px;
  background: rgba(10, 10, 15, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--fg-primary);
}

.logo-mark {
  font-size: 20px;
  color: var(--accent);
}

.logo-text {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 18px;
}

/* Hero */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  padding: 140px 40px 80px;
  max-width: 1200px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-block;
  padding: 8px 16px;
  background: var(--accent-dim);
  border: 1px solid var(--accent);
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--accent-light);
  margin-bottom: 24px;
}

.hero-headline {
  font-size: clamp(48px, 6vw, 72px);
  font-weight: 700;
  margin-bottom: 24px;
  letter-spacing: -2px;
}

.gradient-text {
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-lede {
  font-size: 20px;
  color: var(--fg-secondary);
  max-width: 480px;
  line-height: 1.7;
}

/* Dashboard Preview */
.dashboard-preview {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 40px 80px rgba(0, 0, 0, 0.5);
}

.preview-header {
  display: flex;
  gap: 8px;
  padding: 12px 16px;
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border);
}

.preview-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--fg-muted);
}

.preview-content {
  display: flex;
  min-height: 300px;
}

.preview-sidebar {
  width: 60px;
  padding: 16px;
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sidebar-item {
  height: 8px;
  background: var(--bg-tertiary);
  border-radius: 4px;
}

.sidebar-item.active {
  background: var(--accent);
}

.preview-main {
  flex: 1;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.task-item {
  display: flex;
  align-items: center;
  gap: 12px;
}

.task-status {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid var(--fg-muted);
}

.task-status.complete {
  background: var(--success);
  border-color: var(--success);
}

.task-status.active {
  background: transparent;
  border-color: var(--accent);
}

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

.task-text.complete {
  text-decoration: line-through;
  color: var(--fg-muted);
}

.task-ai-badge {
  font-size: 10px;
  padding: 2px 6px;
  background: var(--accent-dim);
  color: var(--accent-light);
  border-radius: 4px;
  font-weight: 600;
}

.pulse-section {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 12px;
}

.pulse-label {
  font-size: 11px;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.pulse-bar {
  flex: 1;
  height: 8px;
  background: var(--bg-tertiary);
  border-radius: 4px;
  overflow: hidden;
}

.pulse-fill {
  height: 100%;
  border-radius: 4px;
}

.pulse-fill.high {
  width: 94%;
  background: linear-gradient(90deg, var(--accent), var(--success));
}

.pulse-score {
  font-size: 14px;
  font-weight: 600;
  color: var(--success);
}

/* Features */
.features {
  padding: 100px 40px;
  background: var(--bg-secondary);
}

.features-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.section-header {
  margin-bottom: 60px;
}

.section-header.centered {
  text-align: center;
}

.section-title {
  font-size: clamp(32px, 4vw, 48px);
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 18px;
  color: var(--fg-secondary);
  max-width: 500px;
}

.section-header.centered .section-subtitle {
  margin: 0 auto;
}

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

.feature-card {
  padding: 32px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all 0.3s ease;
}

.feature-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
}

.feature-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-dim);
  border-radius: var(--radius-sm);
  color: var(--accent-light);
  margin-bottom: 20px;
}

.feature-title {
  font-size: 20px;
  margin-bottom: 12px;
}

.feature-desc {
  color: var(--fg-secondary);
  font-size: 15px;
  line-height: 1.6;
}

/* How it works */
.how-it-works {
  padding: 100px 40px;
}

.how-inner {
  max-width: 1000px;
  margin: 0 auto;
}

.steps {
  display: flex;
  align-items: center;
  margin-top: 60px;
}

.step {
  flex: 1;
}

.step-number {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 48px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 16px;
}

.step-title {
  font-size: 20px;
  margin-bottom: 12px;
}

.step-desc {
  color: var(--fg-secondary);
  font-size: 15px;
  line-height: 1.6;
}

.step-connector {
  width: 80px;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--gradient-end));
  margin: 0 32px;
  flex-shrink: 0;
}

/* Testimonial */
.testimonial {
  padding: 100px 40px;
  background: var(--bg-secondary);
}

.testimonial-inner {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.quote-mark {
  font-family: Georgia, serif;
  font-size: 120px;
  color: var(--accent);
  line-height: 1;
  margin-bottom: -40px;
}

.quote-text {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 28px;
  font-weight: 500;
  line-height: 1.5;
  margin-bottom: 40px;
  font-style: italic;
}

.quote-author {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
}

.author-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--gradient-end));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 16px;
}

.author-name {
  font-weight: 600;
}

.author-role {
  color: var(--fg-secondary);
  font-size: 14px;
}

/* Closing */
.closing {
  padding: 120px 40px;
}

.closing-inner {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
}

.closing-headline {
  font-size: clamp(40px, 5vw, 56px);
  margin-bottom: 24px;
}

.closing-subtext {
  font-size: 18px;
  color: var(--fg-secondary);
  margin-bottom: 40px;
  line-height: 1.7;
}

.closing-features {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  color: var(--fg-muted);
  font-size: 14px;
}

.divider {
  color: var(--border);
}

/* Footer */
.footer {
  padding: 60px 40px;
  border-top: 1px solid var(--border);
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
}

.footer-tagline {
  color: var(--fg-muted);
  font-size: 14px;
}

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

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

/* Responsive */
@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 40px;
    padding: 120px 24px 60px;
  }
  
  .hero-content {
    text-align: center;
  }
  
  .hero-lede {
    margin: 0 auto;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .steps {
    flex-direction: column;
    gap: 40px;
  }
  
  .step-connector {
    width: 2px;
    height: 40px;
    margin: 0;
    background: linear-gradient(180deg, var(--accent), var(--gradient-end));
  }
  
  .footer-inner {
    flex-direction: column;
    gap: 20px;
    text-align: center;
  }
  
  .nav {
    padding: 16px 24px;
  }
  
  .closing-features {
    flex-direction: column;
    gap: 8px;
  }
}

@media (max-width: 480px) {
  .quote-text {
    font-size: 22px;
  }
}