:root {
  --bg: #07070d;
  --bg-surface: #10101a;
  --bg-card: #16162a;
  --fg: #e8e8f0;
  --fg-muted: #8888a0;
  --accent: #b8f030;
  --accent-dim: rgba(184, 240, 48, 0.12);
  --radius: 12px;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

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

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

/* ── HERO ── */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 24px 60px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -40%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(184, 240, 48, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero-badge {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 2.5px;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 8px 20px;
  border-radius: 100px;
  margin-bottom: 40px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 6vw, 4.8rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.03em;
  max-width: 780px;
  margin-bottom: 24px;
}

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

.lede {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 540px;
  margin-bottom: 56px;
}

/* Demo visual */
.hero-demo {
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
  justify-content: center;
}

.demo-input {
  background: var(--bg-surface);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius);
  padding: 20px 28px;
  text-align: left;
  min-width: 260px;
}

.demo-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--fg-muted);
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-display);
}

.demo-field {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 2px;
}

.demo-cursor {
  width: 2px;
  height: 22px;
  background: var(--accent);
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  50% { opacity: 0; }
}

.demo-arrow {
  font-size: 2rem;
  color: var(--fg-muted);
}

.demo-outputs {
  display: flex;
  gap: 14px;
}

.demo-card {
  width: 130px;
  height: 170px;
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  transition: transform 0.3s ease;
}

.demo-card:hover {
  transform: translateY(-6px);
}

.card-1 {
  background: linear-gradient(135deg, #b8f030, #78c800);
  color: #07070d;
}

.card-2 {
  background: linear-gradient(135deg, #e8e8f0, #c0c0d0);
  color: #07070d;
}

.card-3 {
  background: linear-gradient(135deg, #2a2a50, #16162a);
  color: var(--fg);
  border: 1px solid rgba(255,255,255,0.08);
}

.card-number {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
}

.card-label {
  font-size: 0.7rem;
  margin-top: 4px;
  opacity: 0.7;
  font-family: var(--font-display);
}

.card-tag {
  position: absolute;
  bottom: 10px;
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 1px;
  opacity: 0.5;
  font-family: var(--font-display);
}

/* ── HOW ── */
.how {
  padding: 100px 24px;
  max-width: 1000px;
  margin: 0 auto;
}

.how h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  text-align: center;
  margin-bottom: 64px;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.step {
  padding: 36px 28px;
  background: var(--bg-surface);
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.04);
}

.step-num {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 16px;
  opacity: 0.35;
}

.step h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 10px;
}

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

/* ── WHY ── */
.why {
  padding: 100px 24px;
  background: var(--bg-surface);
}

.why-split {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.why-left h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  position: sticky;
  top: 40px;
}

.why-right {
  display: flex;
  flex-direction: column;
  gap: 36px;
}

.why-point {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.why-icon {
  color: var(--accent);
  font-size: 0.7rem;
  margin-top: 6px;
  flex-shrink: 0;
}

.why-point h4 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.why-point p {
  font-size: 0.95rem;
  color: var(--fg-muted);
  line-height: 1.6;
}

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

.closing::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(184, 240, 48, 0.04) 0%, transparent 70%);
  pointer-events: none;
}

.closing-inner {
  position: relative;
  z-index: 1;
}

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  max-width: 700px;
  margin: 0 auto 20px;
}

.closing-sub {
  font-size: 1.1rem;
  color: var(--fg-muted);
  max-width: 520px;
  margin: 0 auto;
}

/* ── CTA BUTTON ── */
.hero-cta {
  display: inline-flex;
  align-items: center;
  margin-top: 40px;
  background: var(--accent);
  color: #07070d;
  border-radius: var(--radius);
  padding: 18px 32px;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.3px;
  text-decoration: none;
  transition: opacity 0.2s, transform 0.15s;
}

.hero-cta:hover {
  opacity: 0.9;
  transform: translateY(-2px);
}

/* ── FOOTER ── */
.site-footer {
  padding: 40px 24px;
  border-top: 1px solid rgba(255,255,255,0.04);
}

.footer-inner {
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
}

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

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .steps {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .why-split {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .why-left h2 {
    position: static;
  }
  
  .demo-outputs {
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .demo-arrow {
    display: none;
  }
  
  .hero-demo {
    flex-direction: column;
  }
  
  .demo-card {
    width: 100px;
    height: 130px;
  }
  
  .card-number {
    font-size: 1.5rem;
  }
}