:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-card: #1a1a26;
  --fg-primary: #e8e8f0;
  --fg-secondary: #9a9ab0;
  --fg-muted: #6a6a80;
  --accent: #4f7cff;
  --accent-soft: rgba(79, 124, 255, 0.12);
  --accent-glow: rgba(79, 124, 255, 0.25);
  --border: rgba(255, 255, 255, 0.06);
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg-primary);
  color: var(--fg-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* HERO */
.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 24px 80px;
  position: relative;
  overflow: hidden;
  background: radial-gradient(ellipse 80% 50% at 50% -20%, var(--accent-glow), transparent);
}

.hero-container {
  max-width: 800px;
  text-align: center;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2.5px;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 8px 20px;
  border-radius: 100px;
  margin-bottom: 40px;
  border: 1px solid rgba(79, 124, 255, 0.15);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: 28px;
  color: #fff;
}

.hero h1 .accent {
  color: var(--accent);
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--fg-secondary);
  max-width: 580px;
  margin: 0 auto 56px;
  line-height: 1.7;
}

/* HERO CTA */
.hero-cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  margin-bottom: 48px;
}

.hero-btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  padding: 16px 36px;
  border-radius: 12px;
  text-decoration: none;
  transition: opacity 0.2s, transform 0.15s, box-shadow 0.2s;
  box-shadow: 0 4px 20px var(--accent-glow);
}

.hero-btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-2px);
  box-shadow: 0 8px 32px var(--accent-glow);
}

.hero-cta-note {
  font-size: 0.8rem;
  color: var(--fg-muted);
  letter-spacing: 0.3px;
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  padding: 32px 0;
  border-top: 1px solid var(--border);
}

.stat { text-align: center; }

.stat-number {
  display: block;
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.02em;
}

.stat-label {
  display: block;
  font-size: 0.8rem;
  color: var(--fg-muted);
  margin-top: 4px;
  letter-spacing: 0.02em;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}

/* PROBLEM */
.problem {
  padding: 120px 24px;
  background: var(--bg-secondary);
}

.problem-container {
  max-width: 1000px;
  margin: 0 auto;
}

.problem-label,
.how-label,
.features-label {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2.5px;
  color: var(--accent);
  margin-bottom: 20px;
}

.problem h2,
.how h2,
.features h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #fff;
  margin-bottom: 56px;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.problem-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 36px 28px;
  transition: border-color 0.3s ease;
}

.problem-card:hover {
  border-color: rgba(79, 124, 255, 0.2);
}

.problem-icon {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 20px;
  opacity: 0.6;
}

.problem-card h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 12px;
}

.problem-card p {
  font-size: 0.95rem;
  color: var(--fg-secondary);
  line-height: 1.65;
}

/* HOW IT WORKS */
.how {
  padding: 120px 24px;
}

.how-container {
  max-width: 780px;
  margin: 0 auto;
}

.how-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.how-step {
  display: flex;
  gap: 32px;
  padding: 40px 0;
  border-bottom: 1px solid var(--border);
}

.how-step:last-child { border-bottom: none; }

.step-num {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  color: var(--accent);
  opacity: 0.3;
  line-height: 1;
  min-width: 60px;
}

.step-content h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 10px;
}

.step-content p {
  font-size: 0.95rem;
  color: var(--fg-secondary);
  line-height: 1.65;
}

/* FEATURES */
.features {
  padding: 120px 24px;
  background: var(--bg-secondary);
}

.features-container {
  max-width: 1000px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feature-item {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px 24px;
  transition: transform 0.2s ease, border-color 0.3s ease;
}

.feature-item:hover {
  transform: translateY(-2px);
  border-color: rgba(79, 124, 255, 0.15);
}

.feature-tag {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.5px;
  margin-bottom: 12px;
}

.feature-item p {
  font-size: 0.9rem;
  color: var(--fg-secondary);
  line-height: 1.6;
}

/* CLOSING */
.closing {
  padding: 140px 24px;
  text-align: center;
}

.closing-container {
  max-width: 680px;
  margin: 0 auto;
}

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #fff;
  margin-bottom: 24px;
}

.closing-text {
  font-size: 1.05rem;
  color: var(--fg-secondary);
  line-height: 1.75;
  margin-bottom: 48px;
}

.closing-line {
  width: 60px;
  height: 2px;
  background: var(--accent);
  margin: 0 auto 32px;
  opacity: 0.5;
}

.closing-tagline {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 500;
  color: var(--fg-muted);
  letter-spacing: 0.5px;
}

/* FOOTER */
.footer {
  padding: 48px 24px;
  border-top: 1px solid var(--border);
  text-align: center;
}

.footer-container {
  max-width: 1000px;
  margin: 0 auto;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--fg-primary);
  margin-bottom: 8px;
}

.footer-meta {
  font-size: 0.82rem;
  color: var(--fg-muted);
}

/* PRICING SECTION (landing page) */
.pricing-section {
  padding: 120px 24px;
}

.pricing-section-container {
  max-width: 800px;
  margin: 0 auto;
}

.pricing-section-container h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #fff;
  margin-bottom: 56px;
}

.pricing-preview-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 28px;
}

.preview-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px 28px;
}

.preview-card-pro {
  border-color: rgba(79, 124, 255, 0.35);
  background: linear-gradient(135deg, rgba(79,124,255,0.06) 0%, var(--bg-card) 60%);
}

.preview-plan {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--fg-muted);
  margin-bottom: 12px;
}

.preview-price {
  font-family: var(--font-display);
  font-size: 2.6rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 4px;
}

.preview-period {
  font-size: 0.85rem;
  color: var(--fg-muted);
  margin-bottom: 24px;
}

.preview-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 28px;
}

.preview-features li {
  font-size: 0.88rem;
  color: var(--fg-secondary);
}

.preview-btn {
  display: block;
  text-align: center;
  padding: 12px 20px;
  border-radius: 10px;
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 700;
  text-decoration: none;
  transition: opacity 0.2s;
}

.preview-btn-free {
  border: 1px solid var(--border);
  color: var(--fg-secondary);
}

.preview-btn-free:hover { border-color: var(--accent); color: var(--fg-primary); }

.preview-btn-pro {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 16px var(--accent-glow);
}

.preview-btn-pro:hover { opacity: 0.9; }

.pricing-section-note {
  font-size: 0.82rem;
  color: var(--fg-muted);
  text-align: center;
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .problem-grid,
  .features-grid {
    grid-template-columns: 1fr;
  }

  .hero-stats {
    flex-direction: column;
    gap: 24px;
  }

  .stat-divider {
    width: 40px;
    height: 1px;
  }

  .how-step {
    flex-direction: column;
    gap: 16px;
  }

  .step-num {
    font-size: 2rem;
  }

  .hero { padding: 80px 20px 60px; min-height: auto; }
  .problem,
  .how,
  .features,
  .pricing-section { padding: 80px 20px; }
  .closing { padding: 100px 20px; }
  .pricing-preview-cards { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 2.2rem; }
  .problem h2,
  .how h2,
  .features h2 { font-size: 1.6rem; }
  .closing h2 { font-size: 1.8rem; }
}