:root {
  --bg: #0a0c10;
  --bg-elevated: #12151c;
  --fg: #e8eaed;
  --fg-muted: #8b919e;
  --accent: #3ddc84;
  --accent-secondary: #00b4d8;
  --accent-warm: #f7b731;
  --gradient: linear-gradient(135deg, #3ddc84, #00b4d8);
  --card-bg: #161a24;
  --card-border: rgba(61, 220, 132, 0.08);
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
}

.gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* === HERO === */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 24px 80px;
  text-align: center;
}

.hero-inner {
  max-width: 800px;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--accent);
  border: 1px solid rgba(61, 220, 132, 0.3);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 32px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 5.5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 560px;
  margin: 0 auto 48px;
  line-height: 1.7;
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.stat-number {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
}

.stat-label {
  font-size: 0.8rem;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
}

.hero-glow {
  position: absolute;
  top: 20%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(61, 220, 132, 0.08) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* === PROBLEM === */
.problem {
  padding: 100px 24px;
}

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

.section-label {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 48px;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.problem-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 32px;
  transition: border-color 0.3s;
}

.problem-card:hover {
  border-color: rgba(61, 220, 132, 0.25);
}

.problem-icon {
  font-size: 1.5rem;
  margin-bottom: 16px;
  opacity: 0.7;
}

.problem-card h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 12px;
  line-height: 1.3;
}

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

/* === FEATURES === */
.features {
  padding: 100px 24px;
  background: var(--bg-elevated);
}

.features-inner {
  max-width: 720px;
  margin: 0 auto;
}

.features-sub {
  font-size: 1.3rem;
  color: var(--fg);
  margin-bottom: 64px;
  font-family: var(--font-display);
  font-weight: 500;
}

.features-list {
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.feature-row {
  display: flex;
  gap: 24px;
  align-items: flex-start;
}

.feature-number {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  color: rgba(61, 220, 132, 0.15);
  line-height: 1;
  min-width: 60px;
}

.feature-content h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.feature-content p {
  font-size: 0.95rem;
  color: var(--fg-muted);
  line-height: 1.7;
}

/* === CLOSING === */
.closing {
  padding: 120px 24px;
  text-align: center;
}

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

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.closing-sub {
  font-size: 1.1rem;
  color: var(--fg-muted);
  line-height: 1.7;
}

/* === FOOTER === */
.site-footer {
  padding: 48px 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-inner {
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

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

.footer-note {
  font-size: 0.85rem;
  color: var(--fg-muted);
}

/* === RESPONSIVE === */
@media (max-width: 640px) {
  .hero {
    padding: 80px 20px 60px;
    min-height: auto;
  }

  .hero-stats {
    gap: 20px;
  }

  .stat-divider {
    display: none;
  }

  .stat-number {
    font-size: 1.6rem;
  }

  .problem {
    padding: 60px 20px;
  }

  .features {
    padding: 60px 20px;
  }

  .feature-row {
    flex-direction: column;
    gap: 8px;
  }

  .feature-number {
    font-size: 1.8rem;
    min-width: auto;
  }

  .closing {
    padding: 80px 20px;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }
}