:root {
  --bg: #0a0a0f;
  --bg-elevated: #12121a;
  --bg-card: #18182a;
  --fg: #e8e8f0;
  --fg-muted: #8888a0;
  --fg-dim: #55556a;
  --accent: #4ade80;
  --accent-dim: rgba(74, 222, 128, 0.12);
  --accent-glow: rgba(74, 222, 128, 0.25);
  --warm: #f59e0b;
  --radius: 12px;
  --radius-sm: 8px;
}

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'DM Sans', sans-serif;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  line-height: 1.15;
}

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 24px;
  background:
    radial-gradient(ellipse 60% 50% at 50% 0%, rgba(74,222,128,0.06) 0%, transparent 70%),
    linear-gradient(180deg, var(--bg) 0%, #08080d 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(74,222,128,0.04) 0%, transparent 60%);
  pointer-events: none;
}

.hero-container {
  max-width: 820px;
  text-align: center;
  position: relative;
}

.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  border: 1px solid rgba(74,222,128,0.3);
  border-radius: 100px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--accent);
  margin-bottom: 32px;
  background: var(--accent-dim);
}

.hero h1 {
  font-size: clamp(3rem, 8vw, 5.5rem);
  letter-spacing: -0.03em;
  margin-bottom: 24px;
  background: linear-gradient(135deg, var(--fg) 0%, var(--fg-muted) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

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

.stat {
  text-align: center;
}

.stat-number {
  display: block;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}

.stat-label {
  display: block;
  font-size: 0.82rem;
  color: var(--fg-dim);
  margin-top: 6px;
  letter-spacing: 0.02em;
}

.stat-divider {
  width: 1px;
  height: 48px;
  background: rgba(255,255,255,0.08);
}

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

.problem-container {
  max-width: 900px;
  margin: 0 auto;
}

.problem h2 {
  font-size: clamp(2rem, 5vw, 3rem);
  text-align: center;
  margin-bottom: 56px;
  letter-spacing: -0.02em;
}

.problem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.problem-card {
  padding: 40px 32px;
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.06);
}

.problem-card.old {
  background: rgba(255,255,255,0.02);
}

.problem-card.new {
  background: var(--accent-dim);
  border-color: rgba(74,222,128,0.15);
}

.card-label {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--fg-dim);
  margin-bottom: 20px;
}

.problem-card.new .card-label {
  color: var(--accent);
}

.problem-card p {
  font-size: 1.05rem;
  color: var(--fg-muted);
  line-height: 1.7;
  margin-bottom: 24px;
}

.card-accent {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--fg);
}

.problem-card.new .card-accent {
  color: var(--accent);
}

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

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

.features h2 {
  font-size: clamp(2rem, 5vw, 3rem);
  text-align: center;
  margin-bottom: 64px;
  letter-spacing: -0.02em;
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.feature {
  padding: 36px 32px;
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.05);
  transition: border-color 0.3s, transform 0.3s;
}

.feature:hover {
  border-color: rgba(74,222,128,0.2);
  transform: translateY(-2px);
}

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

.feature h3 {
  font-size: 1.25rem;
  margin-bottom: 10px;
  color: var(--fg);
}

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

/* ===== HOW / INDUSTRIES ===== */
.how {
  padding: 120px 24px;
  background: var(--bg-elevated);
}

.how-container {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.how h2 {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  margin-bottom: 48px;
  letter-spacing: -0.02em;
}

.industry-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-bottom: 48px;
}

.industry {
  padding: 10px 22px;
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 100px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--fg-muted);
  transition: border-color 0.2s, color 0.2s;
}

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

.how-note {
  font-size: 1.05rem;
  color: var(--fg-dim);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ===== CLOSING ===== */
.closing {
  padding: 140px 24px;
  background:
    radial-gradient(ellipse 60% 50% at 50% 100%, rgba(74,222,128,0.05) 0%, transparent 70%),
    var(--bg);
  text-align: center;
}

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

.closing h2 {
  font-size: clamp(1.8rem, 4.5vw, 2.8rem);
  margin-bottom: 24px;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.closing-statement {
  font-size: 1.15rem;
  color: var(--fg-muted);
  line-height: 1.7;
}

/* ===== FOOTER ===== */
.site-footer {
  padding: 48px 24px;
  border-top: 1px solid rgba(255,255,255,0.05);
  background: var(--bg);
}

.footer-container {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

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

/* ===== MOBILE ===== */
@media (max-width: 768px) {
  .hero { min-height: auto; padding: 100px 20px 80px; }
  .hero h1 { font-size: 2.6rem; }
  .hero-sub { font-size: 1rem; }
  .hero-stats { gap: 20px; }
  .stat-number { font-size: 2rem; }
  .stat-divider { display: none; }

  .problem { padding: 80px 20px; }
  .problem-grid { grid-template-columns: 1fr; }
  .problem-card { padding: 28px 24px; }

  .features { padding: 80px 20px; }
  .features-grid { grid-template-columns: 1fr; }
  .feature { padding: 28px 24px; }

  .how { padding: 80px 20px; }
  .closing { padding: 100px 20px; }

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

@media (max-width: 480px) {
  .hero h1 { font-size: 2.1rem; }
  .hero-stats { flex-direction: column; gap: 24px; }
}