:root {
  --bg: #08080d;
  --bg-surface: #111118;
  --bg-card: #16161f;
  --bg-card-hover: #1c1c28;
  --accent: #00e676;
  --accent-dim: rgba(0, 230, 118, 0.12);
  --accent-glow: rgba(0, 230, 118, 0.25);
  --purple: #a855f7;
  --purple-dim: rgba(168, 85, 247, 0.12);
  --fg: #e8e8ed;
  --fg-muted: #8888a0;
  --fg-dim: #55556a;
  --border: rgba(255,255,255,0.06);
  --radius: 12px;
  --max-w: 1120px;
}

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

html { scroll-behavior: smooth; }

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

/* ========== HERO ========== */
.hero {
  position: relative;
  padding: 120px 40px 80px;
  max-width: var(--max-w);
  margin: 0 auto;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  top: -200px;
  right: -150px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.hero-grid {
  position: relative;
  z-index: 1;
}

.hero-label {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 24px;
}

.hero h1 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
  max-width: 720px;
}

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

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

.hero-stats {
  display: flex;
  align-items: center;
  gap: 32px;
  padding: 28px 32px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  width: fit-content;
}

.stat-num {
  display: block;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--accent);
}

.stat-label {
  display: block;
  font-size: 0.8rem;
  color: var(--fg-dim);
  margin-top: 2px;
}

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

/* ========== PROBLEM ========== */
.problem {
  padding: 100px 40px;
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.problem-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.problem-tag,
.how-tag,
.tiers-tag {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--purple);
  margin-bottom: 32px;
}

.problem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.problem-left h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.01em;
}

.problem-right {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.problem-card {
  display: flex;
  gap: 16px;
  padding: 20px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: background 0.2s;
}

.problem-card:hover {
  background: var(--bg-card-hover);
}

.problem-icon {
  font-size: 1.1rem;
  color: #f87171;
  flex-shrink: 0;
  margin-top: 2px;
}

.problem-text strong {
  display: block;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.problem-text span {
  font-size: 0.88rem;
  color: var(--fg-muted);
  line-height: 1.5;
}

/* ========== HOW IT WORKS ========== */
.how {
  padding: 100px 40px;
  max-width: var(--max-w);
  margin: 0 auto;
}

.how-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 64px;
}

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

.step {
  display: flex;
  gap: 32px;
  align-items: flex-start;
  padding: 32px 0;
}

.step-num {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 3rem;
  font-weight: 700;
  color: var(--fg-dim);
  line-height: 1;
  flex-shrink: 0;
  width: 80px;
}

.step-content h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--fg);
}

.step-content p {
  font-size: 0.95rem;
  color: var(--fg-muted);
  max-width: 480px;
  line-height: 1.6;
}

.step-connector {
  width: 1px;
  height: 24px;
  background: linear-gradient(to bottom, var(--accent-dim), transparent);
  margin-left: 39px;
}

/* ========== TIERS ========== */
.tiers {
  padding: 100px 40px;
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.tiers-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.tiers-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 56px;
}

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

.tier-card {
  position: relative;
  padding: 36px 28px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.2s, transform 0.2s;
}

.tier-card:hover {
  border-color: rgba(255,255,255,0.12);
  transform: translateY(-2px);
}

.tier-featured {
  border-color: var(--accent);
  background: linear-gradient(165deg, var(--accent-dim) 0%, var(--bg-card) 40%);
}

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

.tier-badge {
  position: absolute;
  top: -11px;
  left: 28px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--bg);
  background: var(--accent);
  padding: 4px 12px;
  border-radius: 6px;
}

.tier-level {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.tier-desc {
  font-size: 0.88rem;
  color: var(--fg-muted);
  margin-bottom: 24px;
  line-height: 1.5;
}

.tier-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.tier-list li {
  font-size: 0.9rem;
  color: var(--fg);
  padding-left: 20px;
  position: relative;
}

.tier-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.tier-featured .tier-list li::before {
  box-shadow: 0 0 8px var(--accent-glow);
}

/* ========== CLOSING ========== */
.closing {
  position: relative;
  padding: 120px 40px;
  text-align: center;
  overflow: hidden;
}

.closing-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 400px;
  background: radial-gradient(ellipse, var(--purple-dim) 0%, transparent 70%);
  pointer-events: none;
}

.closing-inner {
  position: relative;
  max-width: 680px;
  margin: 0 auto;
  z-index: 1;
}

.closing h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.6rem, 3.5vw, 2.6rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 24px;
}

.closing-text {
  font-size: 1.1rem;
  color: var(--fg-muted);
  line-height: 1.7;
  max-width: 560px;
  margin: 0 auto;
}

/* ========== FOOTER ========== */
.site-footer {
  padding: 40px;
  border-top: 1px solid var(--border);
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.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);
}

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
  .hero { padding: 80px 24px 60px; }
  .problem, .how, .tiers, .closing { padding: 72px 24px; }

  .hero-stats {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
    width: 100%;
  }

  .stat-divider {
    width: 100%;
    height: 1px;
  }

  .problem-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .tier-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .step { gap: 20px; }
  .step-num { font-size: 2rem; width: 50px; }
  .step-connector { margin-left: 24px; }

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

@media (max-width: 480px) {
  .hero { padding: 60px 20px 48px; }
  .problem, .how, .tiers, .closing { padding: 56px 20px; }
  .hero-stats { padding: 20px; }
}