:root {
  --bg: #0a0a0f;
  --bg-card: #12121a;
  --fg: #ffffff;
  --fg-muted: #8888a0;
  --accent: #00d4aa;
  --accent-dim: #00d4aa20;
}

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

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

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

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

/* Navigation */
.nav {
  padding: 1.5rem 2rem;
  border-bottom: 1px solid #ffffff10;
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.nav-logo {
  font-family: 'Space Grotesk', system-ui, sans-serif;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--accent);
  letter-spacing: -0.02em;
}

/* Hero */
.hero {
  padding: 6rem 2rem 5rem;
  max-width: 1100px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-block;
  background: var(--accent-dim);
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.4rem 0.8rem;
  border-radius: 2rem;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 700;
  margin-bottom: 1.5rem;
  letter-spacing: -0.03em;
  max-width: 600px;
}

.hero-sub {
  font-size: 1.2rem;
  color: var(--fg-muted);
  max-width: 520px;
  margin-bottom: 2rem;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.cta-btn {
  display: inline-block;
  border-radius: 8px;
  padding: 0.75rem 1.75rem;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.15s;
  font-family: 'DM Sans', sans-serif;
}

.cta-primary {
  background: var(--accent);
  color: #0a0a0f;
}

.cta-primary:hover {
  opacity: 0.88;
  transform: translateY(-2px);
}

.hero-visual {
  display: flex;
}

.task-card {
  background: var(--bg-card);
  border: 1px solid #ffffff10;
  border-radius: 0.75rem;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
}

.task-status {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 12px var(--accent);
  animation: pulse 2s infinite;
}

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

/* Features */
.features {
  padding: 5rem 2rem;
  background: #0d0d14;
}

.features-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.features-title {
  font-size: 1.5rem;
  margin-bottom: 3rem;
  color: var(--fg-muted);
  font-weight: 500;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

.feature-card {
  background: var(--bg);
  border: 1px solid #ffffff10;
  border-radius: 1rem;
  padding: 2rem;
  transition: border-color 0.2s;
}

.feature-card:hover {
  border-color: var(--accent);
}

.feature-icon {
  width: 40px;
  height: 40px;
  background: var(--accent-dim);
  border-radius: 0.5rem;
  margin-bottom: 1.25rem;
}

.feature-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.75rem;
}

.feature-card p {
  color: var(--fg-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Difference */
.difference {
  padding: 6rem 2rem;
}

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

.difference-content h2 {
  font-size: 2rem;
  margin-bottom: 1.5rem;
}

.difference-content p {
  color: var(--fg-muted);
  font-size: 1.1rem;
  line-height: 1.8;
  margin-bottom: 1rem;
}

/* Closing */
.closing {
  padding: 5rem 2rem 8rem;
  text-align: center;
}

.closing-inner {
  max-width: 600px;
  margin: 0 auto;
}

.closing h2 {
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.closing p {
  color: var(--fg-muted);
  font-size: 1.1rem;
}

/* Footer */
.footer {
  padding: 3rem 2rem;
  border-top: 1px solid #ffffff10;
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-brand {
  font-family: 'Space Grotesk', system-ui, sans-serif;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--accent);
}

.footer-tagline {
  color: var(--fg-muted);
  font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
  .hero {
    padding: 4rem 1.5rem 3rem;
  }
  
  .features {
    padding: 4rem 1.5rem;
  }
  
  .difference {
    padding: 4rem 1.5rem;
  }
  
  .closing {
    padding: 4rem 1.5rem 6rem;
  }
  
  .footer-inner {
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
  }
}