:root {
  --bg: #0a0b0f;
  --bg-elevated: #12131a;
  --bg-card: #181924;
  --fg: #e8e9ed;
  --fg-muted: #8b8d9a;
  --fg-dim: #5a5c6a;
  --accent: #3dd6a8;
  --accent-glow: rgba(61, 214, 168, 0.15);
  --accent-warm: #f0a45d;
  --border: rgba(255, 255, 255, 0.06);
  --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-weight: 300;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

.section-label {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.25rem;
}

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

/* ── Hero ── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6rem 2rem 4rem;
  overflow: hidden;
}

.hero-inner {
  max-width: 820px;
  text-align: center;
  position: relative;
  z-index: 2;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--accent);
  border: 1px solid rgba(61, 214, 168, 0.3);
  padding: 0.4rem 1.2rem;
  border-radius: 100px;
  margin-bottom: 2.5rem;
  background: var(--accent-glow);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5.5vw, 4rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
}

.hero .lede {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--fg-muted);
  max-width: 600px;
  margin: 0 auto 3rem;
  line-height: 1.8;
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.stat-number {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--fg);
}

.stat-label {
  font-size: 0.8rem;
  color: var(--fg-dim);
  letter-spacing: 0.02em;
}

.stat-divider {
  width: 1px;
  height: 36px;
  background: var(--border);
}

.hero-gradient {
  position: absolute;
  top: -30%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(ellipse at center, rgba(61, 214, 168, 0.08) 0%, transparent 65%);
  pointer-events: none;
  z-index: 1;
}

/* ── Problem ── */
.problem {
  padding: 8rem 2rem;
  background: var(--bg);
}

.problem-inner {
  max-width: 1000px;
  margin: 0 auto;
}

.problem h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 3.5rem;
  letter-spacing: -0.01em;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.problem-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem 1.75rem;
}

.problem-icon {
  font-size: 1.6rem;
  margin-bottom: 1rem;
  opacity: 0.8;
}

.problem-card h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.problem-card p {
  font-size: 0.9rem;
  color: var(--fg-muted);
  line-height: 1.7;
}

/* ── Features ── */
.features {
  padding: 8rem 2rem;
  background: var(--bg-elevated);
}

.features-inner {
  max-width: 1000px;
  margin: 0 auto;
}

.features h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 3.5rem;
  letter-spacing: -0.01em;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.feature-block {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2.25rem 2rem;
  transition: border-color 0.3s ease;
}

.feature-block:hover {
  border-color: rgba(61, 214, 168, 0.25);
}

.feature-number {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 1rem;
  letter-spacing: 0.05em;
}

.feature-block h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.feature-block p {
  font-size: 0.9rem;
  color: var(--fg-muted);
  line-height: 1.7;
}

/* ── Comparison ── */
.comparison {
  padding: 8rem 2rem;
  background: var(--bg);
}

.comparison-inner {
  max-width: 800px;
  margin: 0 auto;
}

.comparison h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 3.5rem;
  letter-spacing: -0.01em;
}

.comparison-table {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.comparison-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  border-bottom: 1px solid var(--border);
}

.comparison-row:last-child {
  border-bottom: none;
}

.comparison-cell {
  padding: 1rem 1.25rem;
  font-size: 0.88rem;
}

.comparison-header .comparison-cell {
  background: var(--bg-card);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--fg-muted);
}

.label-cell {
  font-family: var(--font-display);
  font-weight: 500;
  color: var(--fg);
}

.old-cell {
  color: var(--fg-dim);
}

.new-cell {
  color: var(--accent);
  font-weight: 400;
}

/* ── Closing ── */
.closing {
  padding: 10rem 2rem;
  text-align: center;
  background: var(--bg-elevated);
  position: relative;
  overflow: hidden;
}

.closing::before {
  content: '';
  position: absolute;
  bottom: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(ellipse at center, rgba(61, 214, 168, 0.06) 0%, transparent 65%);
  pointer-events: none;
}

.closing-inner {
  max-width: 700px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.5vw, 2.2rem);
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 1.5rem;
  letter-spacing: -0.01em;
}

.closing-text {
  font-size: 1.05rem;
  color: var(--fg-muted);
  line-height: 1.8;
  max-width: 520px;
  margin: 0 auto;
}

/* ── Footer ── */
.site-footer {
  padding: 3rem 2rem;
  text-align: center;
  background: var(--bg);
  border-top: 1px solid var(--border);
}

.footer-inner {
  max-width: 1000px;
  margin: 0 auto;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--fg);
  margin-bottom: 0.4rem;
}

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

/* ── Responsive ── */
@media (max-width: 768px) {
  .problem-grid {
    grid-template-columns: 1fr;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .hero-stats {
    flex-direction: column;
    gap: 1.5rem;
  }

  .stat-divider {
    width: 40px;
    height: 1px;
  }

  .comparison-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .comparison-cell {
    padding: 0.75rem 1.25rem;
  }

  .comparison-header {
    display: none;
  }

  .label-cell {
    background: var(--bg-card);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding-bottom: 0.25rem;
  }

  .old-cell::before {
    content: 'Traditional: ';
    color: var(--fg-dim);
    font-weight: 500;
  }

  .new-cell::before {
    content: 'Onkora: ';
    color: var(--accent);
    font-weight: 500;
  }

  .closing {
    padding: 6rem 2rem;
  }
}