: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: #fb923c;
  --border: #1e1e2a;
  --border-light: #2a2a38;
  --success: #22c55e;
  --danger: #ef4444;
  --radius: 12px;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

* { 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: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.section-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-label {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 16px;
}

/* === HERO === */
.hero {
  position: relative;
  padding: 140px 24px 100px;
  text-align: center;
  overflow: hidden;
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 820px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  border: 1px solid var(--border-light);
  border-radius: 100px;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 500;
  color: var(--accent-soft);
  background: var(--accent-glow);
  margin-bottom: 32px;
  letter-spacing: 0.04em;
}

.hero h1 {
  font-size: clamp(48px, 8vw, 88px);
  background: linear-gradient(135deg, var(--fg) 0%, var(--fg-muted) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 28px;
}

.hero-sub {
  font-size: 18px;
  color: var(--fg-muted);
  max-width: 600px;
  margin: 0 auto 48px;
  line-height: 1.7;
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.stat-value {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 700;
  color: var(--accent);
}

.stat-label {
  font-size: 13px;
  color: var(--fg-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.stat-divider {
  width: 1px;
  height: 48px;
  background: var(--border-light);
}

/* hero tagline highlight */
.hero-tagline {
  color: var(--accent);
  -webkit-text-fill-color: var(--accent);
}

/* hero CTA area */
.hero-ctas {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  margin-bottom: 48px;
}

.hero-cta-note {
  font-size: 13px;
  color: var(--fg-dim);
  letter-spacing: 0.01em;
}

/* Primary button */
.btn-primary {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 17px;
  padding: 16px 36px;
  border-radius: var(--radius);
  text-decoration: none;
  letter-spacing: -0.01em;
  transition: background 0.2s, box-shadow 0.2s, transform 0.15s;
  box-shadow: 0 4px 20px rgba(249, 115, 22, 0.25);
}

.btn-primary:hover {
  background: var(--accent-soft);
  box-shadow: 0 6px 28px rgba(249, 115, 22, 0.35);
  transform: translateY(-1px);
}

.btn-large {
  font-size: 19px;
  padding: 18px 44px;
}

/* closing CTA */
.closing-cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  margin-top: 40px;
  position: relative;
  z-index: 1;
}

.closing-cta-note {
  font-size: 14px;
  color: var(--fg-dim);
  margin: 0;
}

.hero-glow {
  position: absolute;
  top: -120px;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(249, 115, 22, 0.08) 0%, transparent 70%);
  pointer-events: none;
  z-index: 1;
}

/* === PROBLEM === */
.problem {
  padding: 100px 0;
  border-top: 1px solid var(--border);
}

.problem h2 {
  font-size: clamp(32px, 5vw, 48px);
  margin-bottom: 56px;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.problem-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: border-color 0.2s;
}

.problem-card:hover {
  border-color: var(--border-light);
}

.problem-icon {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 20px;
  opacity: 0.7;
}

.problem-card h3 {
  font-size: 20px;
  margin-bottom: 12px;
  color: var(--fg);
}

.problem-card p {
  font-size: 15px;
  color: var(--fg-muted);
  line-height: 1.7;
}

/* === HOW === */
.how {
  padding: 100px 0;
  border-top: 1px solid var(--border);
  background: var(--bg-elevated);
}

.how h2 {
  font-size: clamp(32px, 5vw, 48px);
  margin-bottom: 64px;
}

.how-steps {
  max-width: 640px;
}

.how-step {
  display: flex;
  gap: 24px;
  align-items: flex-start;
}

.step-number {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 2px solid var(--accent);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  color: var(--accent);
  background: var(--accent-glow);
}

.step-content h3 {
  font-size: 20px;
  margin-bottom: 8px;
  padding-top: 10px;
}

.step-content p {
  font-size: 15px;
  color: var(--fg-muted);
  line-height: 1.7;
}

.step-line {
  width: 2px;
  height: 32px;
  background: var(--border-light);
  margin-left: 23px;
}

/* === NUMBERS === */
.numbers {
  padding: 100px 0;
  border-top: 1px solid var(--border);
}

.numbers h2 {
  font-size: clamp(32px, 5vw, 48px);
  margin-bottom: 56px;
}

.comparison {
  display: flex;
  align-items: stretch;
  gap: 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
}

.comp-col {
  flex: 1;
  padding: 40px 32px;
}

.comp-old {
  background: var(--bg-card);
}

.comp-new {
  background: linear-gradient(135deg, rgba(249, 115, 22, 0.08) 0%, rgba(249, 115, 22, 0.03) 100%);
  border-left: 2px solid var(--accent);
}

.comp-col h3 {
  font-size: 18px;
  margin-bottom: 24px;
  color: var(--fg-muted);
}

.comp-new h3 {
  color: var(--accent);
}

.comp-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.comp-col li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
  font-size: 15px;
}

.comp-col li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.comp-label {
  color: var(--fg-muted);
}

.comp-val {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--fg);
}

.comp-new .comp-val {
  color: var(--accent-soft);
}

.comp-vs {
  display: none;
}

/* === CLOSING === */
.closing {
  padding: 120px 0;
  text-align: center;
  border-top: 1px solid var(--border);
  background: var(--bg-elevated);
  position: relative;
  overflow: hidden;
}

.closing::before {
  content: '';
  position: absolute;
  bottom: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 500px;
  background: radial-gradient(ellipse, rgba(249, 115, 22, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.closing h2 {
  font-size: clamp(36px, 5.5vw, 56px);
  margin-bottom: 24px;
  position: relative;
  z-index: 1;
}

.closing-text {
  font-size: 18px;
  color: var(--fg-muted);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.75;
  position: relative;
  z-index: 1;
}

/* === FOOTER === */
.footer {
  padding: 40px 0;
  border-top: 1px solid var(--border);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.footer-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  color: var(--fg);
}

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

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

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

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

/* === RESPONSIVE === */
@media (max-width: 768px) {
  .hero {
    padding: 100px 20px 72px;
  }

  .hero-stats {
    gap: 20px;
  }

  .stat-divider {
    display: none;
  }

  .btn-primary {
    font-size: 15px;
    padding: 14px 28px;
  }

  .btn-large {
    font-size: 17px;
    padding: 16px 32px;
  }

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

  .comparison {
    flex-direction: column;
  }

  .comp-new {
    border-left: none;
    border-top: 2px solid var(--accent);
  }

  .comp-vs {
    display: block;
    text-align: center;
    padding: 16px;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 20px;
    color: var(--fg-dim);
    background: var(--bg-card);
  }

  .footer-content {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }

  .how-step {
    gap: 16px;
  }

  .step-number {
    width: 40px;
    height: 40px;
    font-size: 16px;
  }

  .step-line {
    margin-left: 19px;
  }

  .section-inner {
    padding: 0 20px;
  }
}

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

  .hero-sub {
    font-size: 16px;
  }

  .stat-value {
    font-size: 24px;
  }

  .comp-col {
    padding: 28px 20px;
  }
}