:root {
  --bg: #0a0a0c;
  --bg-elevated: #12121a;
  --bg-card: #1a1a26;
  --fg: #e8e6e1;
  --fg-muted: #8a8890;
  --fg-dim: #55535a;
  --accent: #c8ff3c;
  --accent-dim: rgba(200, 255, 60, 0.12);
  --accent-glow: rgba(200, 255, 60, 0.06);
  --border: rgba(255,255,255,0.06);
  --radius: 16px;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* ─── HERO ─── */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 100px 24px 80px;
  overflow: hidden;
}

.hero-inner {
  max-width: 800px;
  position: relative;
  z-index: 2;
}

.hero-tag {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 32px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(40px, 7vw, 80px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -2px;
  margin-bottom: 32px;
  color: var(--fg);
}

.hero-sub {
  font-size: 19px;
  line-height: 1.7;
  color: var(--fg-muted);
  max-width: 580px;
}

.hero-accent {
  position: absolute;
  top: -20%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  z-index: 1;
}

/* ─── PROOF ─── */
.proof {
  padding: 120px 24px;
  background: var(--bg-elevated);
}

.proof-inner {
  max-width: 960px;
  margin: 0 auto;
}

.proof h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 600;
  letter-spacing: -1px;
  margin-bottom: 56px;
  color: var(--fg);
}

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

.proof-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 28px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.proof-card.accent {
  background: var(--accent-dim);
  border-color: rgba(200, 255, 60, 0.2);
}

.proof-number {
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 700;
  color: var(--fg);
}

.proof-card.accent .proof-number {
  color: var(--accent);
}

.proof-label {
  font-size: 15px;
  font-weight: 500;
  color: var(--fg-muted);
}

.proof-detail {
  font-size: 13px;
  color: var(--fg-dim);
}

/* ─── HOW ─── */
.how {
  padding: 120px 24px;
}

.how-inner {
  max-width: 960px;
  margin: 0 auto;
}

.how h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 600;
  letter-spacing: -1px;
  margin-bottom: 64px;
  color: var(--fg);
}

.how-steps {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px 64px;
}

.how-step {
  position: relative;
}

.step-num {
  font-family: var(--font-display);
  font-size: 64px;
  font-weight: 700;
  color: var(--accent-dim);
  line-height: 1;
  display: block;
  margin-bottom: 12px;
  color: rgba(200,255,60,0.15);
}

.how-step h3 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--fg);
}

.how-step p {
  color: var(--fg-muted);
  font-size: 16px;
  line-height: 1.7;
}

/* ─── NUMBERS ─── */
.numbers {
  padding: 120px 24px;
  background: var(--bg-elevated);
}

.numbers-inner {
  max-width: 960px;
  margin: 0 auto;
}

.numbers h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 600;
  letter-spacing: -1px;
  margin-bottom: 56px;
  color: var(--fg);
}

.numbers-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 40px;
}

.num-block {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 28px;
  text-align: center;
}

.num-block.highlight {
  background: var(--accent-dim);
  border-color: rgba(200, 255, 60, 0.2);
}

.num-big {
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 700;
  display: block;
  margin-bottom: 8px;
  color: var(--fg);
}

.num-block.highlight .num-big {
  color: var(--accent);
}

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

.numbers-footnote {
  text-align: center;
  font-size: 15px;
  color: var(--fg-dim);
  font-style: italic;
  max-width: 700px;
  margin: 0 auto;
}

/* ─── CLOSING ─── */
.closing {
  padding: 140px 24px;
  text-align: center;
}

.closing-inner {
  max-width: 680px;
  margin: 0 auto;
}

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 700;
  letter-spacing: -1.5px;
  margin-bottom: 28px;
  color: var(--fg);
}

.closing p {
  font-size: 18px;
  line-height: 1.75;
  color: var(--fg-muted);
  margin-bottom: 24px;
}

.closing-vision {
  color: var(--accent) !important;
  font-weight: 500;
  font-size: 17px !important;
}

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

.footer-inner {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-brand {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 15px;
  color: var(--fg);
}

.footer-sep {
  color: var(--fg-dim);
}

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

/* ─── SUBSCRIBE FORM ─── */
.subscribe-form {
  margin-top: 48px;
}

.subscribe-row {
  display: flex;
  gap: 12px;
  max-width: 480px;
  flex-wrap: wrap;
}

.subscribe-input {
  flex: 1;
  min-width: 220px;
  background: var(--bg-elevated);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 10px;
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 16px;
  padding: 14px 18px;
  outline: none;
  transition: border-color 0.2s;
}

.subscribe-input:focus {
  border-color: rgba(200, 255, 60, 0.4);
}

.subscribe-input::placeholder {
  color: var(--fg-dim);
}

.subscribe-btn {
  background: var(--accent);
  color: #0a0a0c;
  border: none;
  border-radius: 10px;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  padding: 14px 24px;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.15s, opacity 0.15s;
}

.subscribe-btn:hover {
  background: #d4ff55;
}

.subscribe-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.subscribe-meta {
  margin-top: 14px;
  font-size: 13px;
  color: var(--fg-dim);
  transition: color 0.2s;
}

/* ─── RESPONSIVE ─── */
@media (max-width: 768px) {
  .proof-grid {
    grid-template-columns: 1fr 1fr;
  }
  .how-steps {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .numbers-grid {
    grid-template-columns: 1fr 1fr;
  }
  .hero {
    min-height: 80vh;
    padding: 80px 20px 60px;
  }
  .hero h1 {
    letter-spacing: -1px;
  }
}

@media (max-width: 480px) {
  .proof-grid,
  .numbers-grid {
    grid-template-columns: 1fr;
  }
  .hero {
    min-height: auto;
    padding: 64px 16px 48px;
  }
  .proof, .how, .numbers {
    padding: 80px 16px;
  }
  .closing {
    padding: 100px 16px;
  }
}