:root {
  --bg: #0a0a0f;
  --bg-elevated: #12121a;
  --bg-card: #16161f;
  --fg: #e8e8ed;
  --fg-muted: #8888a0;
  --fg-dim: #55556a;
  --accent: #f97316;
  --accent-glow: rgba(249, 115, 22, 0.15);
  --accent-soft: #fdba74;
  --border: #1e1e2a;
  --radius: 12px;
  --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: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ============ HERO ============ */
.hero {
  min-height: 85vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 24px 80px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

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

.hero-badge {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 3px;
  color: var(--accent);
  border: 1px solid rgba(249, 115, 22, 0.3);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 32px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(48px, 8vw, 88px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -2px;
  margin-bottom: 24px;
  background: linear-gradient(135deg, var(--fg) 60%, var(--accent-soft));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 18px;
  color: var(--fg-muted);
  max-width: 560px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.hero-pulse {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.5px;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(249, 115, 22, 0.4); }
  50% { opacity: 0.7; box-shadow: 0 0 0 8px rgba(249, 115, 22, 0); }
}

/* ============ RHYTHM (FEATURES) ============ */
.rhythm {
  padding: 100px 24px;
  background: var(--bg-elevated);
}

.rhythm-inner {
  max-width: 1080px;
  margin: 0 auto;
}

.rhythm-label,
.how-label,
.numbers-label {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 3px;
  color: var(--accent);
  margin-bottom: 16px;
}

.rhythm h2,
.how h2,
.numbers h2 {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 700;
  letter-spacing: -1px;
  line-height: 1.15;
  margin-bottom: 12px;
}

.rhythm-desc {
  color: var(--fg-muted);
  font-size: 18px;
  margin-bottom: 56px;
  max-width: 520px;
}

.rhythm-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.rhythm-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 32px;
  transition: border-color 0.3s;
}

.rhythm-card:hover {
  border-color: rgba(249, 115, 22, 0.3);
}

.rhythm-icon {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 20px;
  letter-spacing: 1px;
}

.rhythm-card h3 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 10px;
  letter-spacing: -0.3px;
}

.rhythm-card p {
  color: var(--fg-muted);
  font-size: 15px;
  line-height: 1.65;
}

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

.how-inner {
  max-width: 720px;
  margin: 0 auto;
}

.how h2 {
  margin-bottom: 56px;
}

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

.how-step {
  display: flex;
  gap: 28px;
  padding: 32px 0;
  position: relative;
}

.step-line {
  width: 2px;
  background: var(--border);
  flex-shrink: 0;
  position: relative;
}

.step-line::before {
  content: '';
  position: absolute;
  top: 0;
  left: -4px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--fg-dim);
}

.step-line.active {
  background: linear-gradient(to bottom, var(--accent), transparent);
}

.step-line.active::before {
  border-color: var(--accent);
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent-glow);
}

.step-time {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--fg-dim);
  text-transform: uppercase;
  display: block;
  margin-bottom: 8px;
}

.step-content h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 8px;
  letter-spacing: -0.3px;
}

.step-content p {
  color: var(--fg-muted);
  font-size: 15px;
  line-height: 1.65;
}

/* ============ NUMBERS ============ */
.numbers {
  padding: 100px 24px;
  background: var(--bg-elevated);
}

.numbers-inner {
  max-width: 1080px;
  margin: 0 auto;
}

.numbers h2 {
  margin-bottom: 56px;
  max-width: 600px;
}

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

.number-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 32px;
}

.number-value {
  font-family: var(--font-display);
  font-size: 56px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -2px;
  line-height: 1;
  margin-bottom: 16px;
}

.number-desc {
  color: var(--fg-muted);
  font-size: 15px;
  line-height: 1.65;
}

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

.closing-inner {
  max-width: 640px;
  margin: 0 auto;
}

.closing-beat {
  display: flex;
  justify-content: center;
  gap: 6px;
  margin-bottom: 40px;
}

.closing-beat span {
  display: block;
  width: 4px;
  border-radius: 2px;
  background: var(--accent);
  animation: beat 1.2s ease-in-out infinite;
}

.closing-beat span:nth-child(1) { height: 16px; animation-delay: 0s; }
.closing-beat span:nth-child(2) { height: 28px; animation-delay: 0.1s; }
.closing-beat span:nth-child(3) { height: 40px; animation-delay: 0.2s; }
.closing-beat span:nth-child(4) { height: 28px; animation-delay: 0.3s; }
.closing-beat span:nth-child(5) { height: 16px; animation-delay: 0.4s; }

@keyframes beat {
  0%, 100% { transform: scaleY(1); opacity: 0.6; }
  50% { transform: scaleY(1.5); opacity: 1; }
}

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  letter-spacing: -1px;
  line-height: 1.2;
  margin-bottom: 20px;
}

.closing p {
  color: var(--fg-muted);
  font-size: 17px;
  line-height: 1.7;
}

/* ============ FOOTER ============ */
.site-footer {
  padding: 40px 24px;
  border-top: 1px solid var(--border);
}

.footer-inner {
  max-width: 1080px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  color: var(--fg);
  letter-spacing: -0.3px;
}

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

.footer-powered a {
  color: var(--fg-muted);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-powered a:hover {
  color: var(--accent);
}

/* ============ RESPONSIVE ============ */
@media (max-width: 768px) {
  .hero { min-height: 70vh; padding: 80px 20px 60px; }
  .rhythm-grid { grid-template-columns: 1fr; }
  .numbers-grid { grid-template-columns: 1fr; }
  .rhythm, .how, .numbers, .closing { padding: 72px 20px; }
  .number-value { font-size: 44px; }
  .footer-inner { flex-direction: column; gap: 12px; text-align: center; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 40px; }
  .hero-sub { font-size: 16px; }
}