:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-tertiary: #1a1a25;
  --fg-primary: #ffffff;
  --fg-secondary: #a8a8b3;
  --fg-muted: #6b6b7a;
  --accent: #00e5a0;
  --accent-dim: rgba(0, 229, 160, 0.15);
  --accent-secondary: #7c5cff;
  --border: rgba(255, 255, 255, 0.08);
  --radius: 12px;
  --radius-sm: 8px;
}

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

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

h1, h2, h3, h4 {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.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;
}

.logo {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 18px;
  color: var(--fg-primary);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.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;
  position: relative;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse 80% 60% at 20% 30%, rgba(0, 229, 160, 0.08) 0%, transparent 60%),
              radial-gradient(ellipse 60% 50% at 80% 70%, rgba(124, 92, 255, 0.06) 0%, transparent 50%);
  pointer-events: none;
}

.hero-label {
  display: inline-block;
  padding: 6px 14px;
  background: var(--accent-dim);
  border: 1px solid rgba(0, 229, 160, 0.3);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(36px, 5vw, 56px);
  line-height: 1.1;
  margin-bottom: 24px;
}

.hero h1 em {
  font-style: normal;
  color: var(--accent);
}

.hero .lede {
  font-size: 18px;
  color: var(--fg-secondary);
  max-width: 480px;
  line-height: 1.7;
}

.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, 0.4);
}

.preview-header {
  display: flex;
  gap: 8px;
  padding: 16px 20px;
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border);
}

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

.preview-dot:first-child { background: #ff5f57; }
.preview-dot:nth-child(2) { background: #febc2e; }
.preview-dot:nth-child(3) { background: #28c840; }

.preview-content {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.task-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  font-size: 14px;
}

.task-check {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  font-size: 12px;
  background: var(--bg-primary);
  color: var(--fg-muted);
}

.task-check.ai {
  background: var(--accent-dim);
  color: var(--accent);
}

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

.task-active {
  border: 1px solid rgba(0, 229, 160, 0.3);
  background: rgba(0, 229, 160, 0.05);
}

.task-name {
  flex: 1;
  font-weight: 500;
}

.task-tag {
  font-size: 11px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 100px;
  background: var(--bg-primary);
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.task-tag.ai {
  background: var(--accent-dim);
  color: var(--accent);
}

.features {
  padding: 100px 40px;
  max-width: 1200px;
  margin: 0 auto;
}

.features-header {
  text-align: center;
  margin-bottom: 64px;
}

.features-header h2 {
  font-size: clamp(28px, 4vw, 42px);
  margin-bottom: 16px;
}

.features-header p {
  color: var(--fg-secondary);
  font-size: 18px;
  max-width: 500px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
}

.feature-large {
  grid-column: span 2;
}

.feature-wide {
  grid-column: span 2;
}

.feature-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-dim);
  border-radius: 12px;
  font-size: 20px;
  color: var(--accent);
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 18px;
  margin-bottom: 12px;
}

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

.closing {
  padding: 100px 40px 120px;
  text-align: center;
  max-width: 1200px;
  margin: 0 auto;
}

.closing h2 {
  font-size: clamp(28px, 4vw, 42px);
  max-width: 700px;
  margin: 0 auto 20px;
}

.closing p {
  color: var(--fg-secondary);
  font-size: 18px;
  max-width: 500px;
  margin: 0 auto 60px;
}

.closing-visual {
  display: flex;
  justify-content: center;
  gap: 80px;
}

.metric {
  text-align: center;
}

.metric-value {
  display: block;
  font-family: 'Syne', sans-serif;
  font-size: 56px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 12px;
}

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

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

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

.footer-logo {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 16px;
}

.footer-tagline {
  display: block;
  color: var(--fg-muted);
  font-size: 13px;
  margin-top: 4px;
}

.footer-meta {
  color: var(--fg-muted);
  font-size: 13px;
}

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 60px;
    padding: 120px 24px 60px;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .feature-large, .feature-wide {
    grid-column: span 1;
  }
  
  .closing-visual {
    flex-direction: column;
    gap: 40px;
  }
  
  .footer-inner {
    flex-direction: column;
    gap: 20px;
    text-align: center;
  }
}