:root {
  --bg: #0a0a0a;
  --bg-elevated: #141414;
  --bg-card: #1a1a1a;
  --fg: #e8e8e8;
  --fg-muted: #888888;
  --accent: #00e676;
  --accent-dim: rgba(0, 230, 118, 0.12);
  --accent-glow: rgba(0, 230, 118, 0.25);
  --border: #222222;
  --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;
  -webkit-font-smoothing: antialiased;
}

/* === NAV === */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10,10,10,0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-brand {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--accent);
  text-decoration: none;
}
.nav-links { display: flex; align-items: center; gap: 8px; }
.nav-link {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 500;
  color: var(--fg-muted);
  text-decoration: none;
  padding: 8px 14px;
  border-radius: 8px;
  transition: color 0.2s, background 0.2s;
}
.nav-link:hover { color: var(--fg); background: var(--bg-card); }
.nav-cta {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  color: #000;
  background: var(--accent);
  text-decoration: none;
  padding: 9px 18px;
  border-radius: 8px;
  transition: opacity 0.2s;
}
.nav-cta:hover { opacity: 0.88; }

/* === HERO ACTIONS === */
.hero-actions {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 48px;
  flex-wrap: wrap;
}
.btn-hero-primary {
  display: inline-block;
  padding: 14px 28px;
  background: var(--accent);
  color: #000;
  border-radius: 10px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  text-decoration: none;
  transition: opacity 0.2s, transform 0.15s;
}
.btn-hero-primary:hover { opacity: 0.9; transform: translateY(-1px); }
.btn-hero-secondary {
  display: inline-block;
  padding: 14px 24px;
  border: 1px solid var(--border);
  color: var(--fg-muted);
  border-radius: 10px;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: border-color 0.2s, color 0.2s;
}
.btn-hero-secondary:hover { border-color: var(--fg-muted); color: var(--fg); }

/* === HERO === */
.hero {
  min-height: 90vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 80px 24px 60px;
  max-width: 1100px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(0, 230, 118, 0.2);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 32px;
  width: fit-content;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(40px, 7vw, 72px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: #ffffff;
  margin-bottom: 24px;
}

.hero-sub {
  font-size: 18px;
  color: var(--fg-muted);
  max-width: 580px;
  line-height: 1.7;
  margin-bottom: 48px;
}

.hero-stat-row {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
}

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

.stat-num {
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 700;
  color: var(--accent);
}

.stat-label {
  font-size: 14px;
  color: var(--fg-muted);
  max-width: 180px;
}

/* === PROBLEM === */
.problem {
  background: var(--bg-elevated);
  padding: 100px 24px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

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

.section-label {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.problem h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: #ffffff;
  margin-bottom: 16px;
  max-width: 700px;
}

.problem-text {
  font-size: 17px;
  color: var(--fg-muted);
  max-width: 640px;
  line-height: 1.7;
  margin-bottom: 48px;
}

.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: 12px;
  padding: 32px 28px;
  transition: border-color 0.2s;
}

.problem-card:hover {
  border-color: rgba(0, 230, 118, 0.3);
}

.card-icon {
  font-size: 28px;
  margin-bottom: 16px;
}

.problem-card h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 8px;
}

.problem-card p {
  font-size: 15px;
  color: var(--fg-muted);
  line-height: 1.6;
}

/* === HOW IT WORKS === */
.how {
  padding: 100px 24px;
}

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

.how h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: #ffffff;
  margin-bottom: 56px;
}

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

.loop-step {
  display: flex;
  gap: 32px;
  padding: 36px 0;
  border-bottom: 1px solid var(--border);
  align-items: flex-start;
}

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

.step-number {
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 700;
  color: var(--accent);
  opacity: 0.4;
  min-width: 80px;
  line-height: 1;
}

.step-content h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 8px;
}

.step-content p {
  font-size: 16px;
  color: var(--fg-muted);
  line-height: 1.65;
  max-width: 560px;
}

/* === VERTICALS === */
.verticals {
  background: var(--bg-elevated);
  padding: 100px 24px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

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

.verticals h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: #ffffff;
  margin-bottom: 48px;
}

.vert-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.vert-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 28px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: border-color 0.2s, background 0.2s;
}

.vert-item:hover {
  border-color: rgba(0, 230, 118, 0.3);
  background: rgba(0, 230, 118, 0.04);
}

.vert-icon {
  font-size: 24px;
  flex-shrink: 0;
}

.vert-item span {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 500;
  color: var(--fg);
}

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

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

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: #ffffff;
  margin-bottom: 20px;
}

.closing-text {
  font-size: 18px;
  color: var(--fg-muted);
  line-height: 1.7;
  max-width: 540px;
  margin: 0 auto 56px;
}

.closing-numbers {
  display: flex;
  justify-content: center;
  gap: 64px;
  flex-wrap: wrap;
}

.closing-stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.closing-num {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 700;
  color: var(--accent);
}

.closing-desc {
  font-size: 14px;
  color: var(--fg-muted);
}

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

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--accent);
}

.footer-tagline {
  font-size: 14px;
  color: var(--fg-muted);
}

.footer-contact {
  font-size: 14px;
  color: var(--fg-muted);
  margin-top: 8px;
}

/* === MOBILE === */
@media (max-width: 768px) {
  .hero {
    min-height: auto;
    padding: 60px 20px 48px;
  }

  .hero-stat-row {
    gap: 32px;
  }

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

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

  .step-number {
    font-size: 32px;
    min-width: auto;
  }

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

  .closing-numbers {
    gap: 40px;
  }

  .problem, .how, .verticals, .closing {
    padding: 64px 20px;
  }
}

@media (max-width: 480px) {
  .vert-grid {
    grid-template-columns: 1fr;
  }

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

  .closing-numbers {
    flex-direction: column;
    align-items: center;
    gap: 32px;
  }
}