:root {
  --bg: #0a0a0f;
  --bg-elevated: #12121a;
  --bg-card: #1a1a26;
  --fg: #e8e8ed;
  --fg-muted: #8a8a9a;
  --accent: #00d4aa;
  --accent-dim: rgba(0, 212, 170, 0.12);
  --accent-glow: rgba(0, 212, 170, 0.3);
  --gold: #fbbf24;
  --tier1: #3b82f6;
  --tier2: #8b5cf6;
  --tier3: #f59e0b;
  --tier4: #00d4aa;
  --radius: 12px;
  --max-w: 1120px;
}

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

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

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

/* ---- HERO ---- */
.hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 24px;
  overflow: hidden;
}

.hero-gradient {
  position: absolute;
  top: -40%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.score-badge {
  display: inline-block;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 4.5rem;
  font-weight: 700;
  color: var(--accent);
  border: 3px solid var(--accent);
  border-radius: 50%;
  width: 140px;
  height: 140px;
  line-height: 134px;
  text-align: center;
  margin-bottom: 32px;
  box-shadow: 0 0 60px var(--accent-glow), inset 0 0 30px var(--accent-dim);
  animation: pulse-glow 3s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 60px var(--accent-glow), inset 0 0 30px var(--accent-dim); }
  50% { box-shadow: 0 0 90px var(--accent-glow), inset 0 0 40px var(--accent-dim); }
}

.hero h1 {
  font-size: clamp(2.8rem, 6vw, 4.5rem);
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

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

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

/* ---- PROBLEM ---- */
.problem {
  padding: 100px 24px;
  background: var(--bg-elevated);
}

.problem-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.problem h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  margin-bottom: 20px;
}

.problem p {
  color: var(--fg-muted);
  font-size: 1.05rem;
  line-height: 1.75;
}

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

.stat-card {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius);
  padding: 24px 28px;
  display: flex;
  align-items: baseline;
  gap: 16px;
}

.stat-number {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
}

.stat-label {
  font-size: 0.95rem;
  color: var(--fg-muted);
}

/* ---- TIERS ---- */
.tiers {
  padding: 100px 24px;
  max-width: var(--max-w);
  margin: 0 auto;
  text-align: center;
}

.tiers h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  margin-bottom: 12px;
}

.tiers-sub {
  color: var(--fg-muted);
  font-size: 1.1rem;
  margin-bottom: 48px;
}

.tier-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  text-align: left;
}

.tier-card {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius);
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  transition: transform 0.2s, border-color 0.2s;
}

.tier-card:hover {
  transform: translateY(-4px);
}

.tier-1:hover { border-color: var(--tier1); }
.tier-2:hover { border-color: var(--tier2); }
.tier-3:hover { border-color: var(--tier3); }
.tier-4:hover { border-color: var(--tier4); }

.tier-tag {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 16px;
}

.tier-1 .tier-tag { color: var(--tier1); }
.tier-2 .tier-tag { color: var(--tier2); }
.tier-3 .tier-tag { color: var(--tier3); }
.tier-4 .tier-tag { color: var(--tier4); }

.tier-card h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.tier-card p {
  color: var(--fg-muted);
  font-size: 0.9rem;
  line-height: 1.65;
  flex: 1;
}

.tier-price {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.1rem;
  font-weight: 600;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid rgba(255,255,255,0.06);
}

/* ---- HOW ---- */
.how {
  padding: 100px 24px;
  background: var(--bg-elevated);
}

.how h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  text-align: center;
  margin-bottom: 56px;
}

.steps {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.step {
  position: relative;
}

.step-num {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--accent-dim);
  line-height: 1;
  margin-bottom: 16px;
  color: rgba(0, 212, 170, 0.25);
}

.step h3 {
  font-size: 1.1rem;
  margin-bottom: 10px;
}

.step p {
  color: var(--fg-muted);
  font-size: 0.9rem;
  line-height: 1.65;
}

/* ---- CLOSING ---- */
.closing {
  padding: 120px 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

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

.closing h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 20px;
}

.closing p {
  color: var(--fg-muted);
  font-size: 1.05rem;
  line-height: 1.75;
  margin-bottom: 32px;
}

.closing-tagline {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: -0.01em;
}

/* ---- FOOTER ---- */
.site-footer {
  padding: 40px 24px;
  border-top: 1px solid rgba(255,255,255,0.06);
}

.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: 600;
}

.footer-note {
  font-size: 0.8rem;
  color: var(--fg-muted);
}

/* ---- RESPONSIVE ---- */
@media (max-width: 900px) {
  .tier-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .steps {
    grid-template-columns: repeat(2, 1fr);
  }
  .problem-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

@media (max-width: 600px) {
  .hero { min-height: 80vh; padding: 60px 20px; }
  .score-badge { width: 110px; height: 110px; font-size: 3.5rem; line-height: 104px; }
  .tier-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; gap: 40px; }
  .footer-inner { flex-direction: column; gap: 8px; text-align: center; }
}