:root {
  --bg: #0a0a0f;
  --bg-secondary: #12121a;
  --fg: #f0f0f5;
  --fg-muted: #8a8a9a;
  --accent: #00e5a0;
  --accent-glow: rgba(0, 229, 160, 0.15);
  --accent-dim: #00b880;
  --card-bg: #16161f;
  --card-border: #2a2a3a;
  --radius: 16px;
  --radius-sm: 8px;
}

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'Inter', -apple-system, sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3 {
  font-family: 'Space Grotesk', sans-serif;
  line-height: 1.15;
  font-weight: 700;
}

/* HERO */
.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 24px;
  background: radial-gradient(ellipse at 50% 0%, var(--accent-glow) 0%, transparent 60%), var(--bg);
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0, 229, 160, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

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

.hero-badge {
  display: inline-block;
  background: var(--accent-glow);
  border: 1px solid var(--accent-dim);
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 500;
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 32px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.hero h1 {
  font-size: clamp(2.4rem, 6vw, 4rem);
  margin-bottom: 24px;
  letter-spacing: -0.03em;
}

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

.lede {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 600px;
  margin: 0 auto 48px;
  line-height: 1.7;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
  padding-top: 48px;
  border-top: 1px solid var(--card-border);
}

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

.stat-number {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--accent);
}

.stat-label {
  font-size: 0.8rem;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

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

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

.problem h2 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  text-align: center;
  margin-bottom: 64px;
  letter-spacing: -0.02em;
}

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

.problem-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: border-color 0.2s;
}

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

.problem-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.problem-card h3 {
  font-size: 1.1rem;
  margin-bottom: 12px;
}

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

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

.features-inner {
  max-width: 800px;
  margin: 0 auto;
}

.features h2 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.features-sub {
  font-size: 1.05rem;
  color: var(--fg-muted);
  margin-bottom: 64px;
  line-height: 1.7;
}

.features-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.feature {
  display: flex;
  align-items: flex-start;
  gap: 28px;
  padding: 36px 0;
  border-bottom: 1px solid var(--card-border);
}

.feature:first-child {
  border-top: 1px solid var(--card-border);
}

.feature-number {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  min-width: 32px;
  padding-top: 4px;
}

.feature-content h3 {
  font-size: 1.2rem;
  margin-bottom: 8px;
}

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

/* CLOSING */
.closing {
  padding: 120px 24px;
  background: var(--bg-secondary);
  text-align: center;
}

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

.closing h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.closing p {
  font-size: 1.05rem;
  color: var(--fg-muted);
  line-height: 1.7;
  margin-bottom: 16px;
}

.closing-vision {
  color: var(--accent) !important;
  font-weight: 500;
  font-size: 1.1rem !important;
  margin-top: 32px;
}

/* FOOTER */
.footer {
  padding: 40px 24px;
  background: var(--bg);
  border-top: 1px solid var(--card-border);
}

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

.footer-brand {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.1rem;
}

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

/* NAV */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: rgba(10,10,15,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--card-border);
}
.site-nav-inner {
  max-width: 1000px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.nav-brand {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--accent);
}
.nav-cta {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
  border: 1px solid var(--accent-dim);
  padding: 7px 16px;
  border-radius: 100px;
  background: var(--accent-glow);
  transition: opacity 0.15s;
}
.nav-cta:hover { opacity: 0.8; }

/* CTA BUTTONS */
.cta-btn {
  display: inline-block;
  background: var(--accent);
  color: #000;
  font-weight: 700;
  font-size: 1rem;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  margin-right: 12px;
  transition: opacity 0.15s;
}
.cta-btn:hover { opacity: 0.85; }
.cta-btn-ghost {
  display: inline-block;
  background: transparent;
  color: var(--fg-muted);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 14px 24px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  border: 1px solid var(--card-border);
  transition: all 0.15s;
}
.cta-btn-ghost:hover { border-color: var(--accent-dim); color: var(--fg); }

/* RESPONSIVE */
@media (max-width: 768px) {
  .hero-stats {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .problem-grid {
    grid-template-columns: 1fr;
  }

  .feature {
    flex-direction: column;
    gap: 12px;
  }

  .footer-inner {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}