:root {
  --bg: #0a0a0f;
  --bg-subtle: #12121a;
  --bg-card: #1a1a26;
  --fg: #e8e8ed;
  --fg-muted: #8a8a9a;
  --accent: #00e676;
  --accent-dim: rgba(0, 230, 118, 0.12);
  --accent-glow: rgba(0, 230, 118, 0.25);
  --danger: #ff4757;
  --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;
}

/* ========== HERO ========== */
.hero {
  min-height: 90vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 80px 6% 60px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-inner {
  max-width: 800px;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 3px;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 32px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5.5vw, 4.2rem);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -1.5px;
  margin-bottom: 28px;
}

.highlight {
  color: var(--accent);
  position: relative;
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 560px;
  line-height: 1.7;
}

.hero-visual {
  display: flex;
  gap: 16px;
  margin-top: 56px;
  flex-wrap: wrap;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius);
  padding: 20px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  min-width: 240px;
  flex: 1;
  transition: border-color 0.3s;
}

.stat-card:hover {
  border-color: var(--accent-glow);
}

.stat-icon {
  font-size: 24px;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-dim);
  color: var(--accent);
  border-radius: 10px;
  flex-shrink: 0;
}

.stat-text {
  display: flex;
  flex-direction: column;
}

.stat-label {
  font-size: 0.78rem;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.stat-value {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  color: var(--fg);
}

/* ========== PROBLEM ========== */
.problem {
  padding: 100px 6%;
  background: var(--bg-subtle);
}

.problem-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.problem h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 48px;
}

.problem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.problem-lead {
  font-size: 1.15rem;
  color: var(--fg);
  margin-bottom: 20px;
  line-height: 1.75;
}

.problem-text p:last-child {
  color: var(--fg-muted);
}

.problem-stats {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.p-stat {
  display: flex;
  gap: 20px;
  align-items: baseline;
}

.p-stat-num {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--accent);
  flex-shrink: 0;
  min-width: 90px;
}

.p-stat-desc {
  font-size: 0.95rem;
  color: var(--fg-muted);
  line-height: 1.55;
}

/* ========== HOW ========== */
.how {
  padding: 100px 6%;
}

.how-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.how h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 20px;
}

.how-lead {
  font-size: 1.1rem;
  color: var(--fg-muted);
  max-width: 640px;
  margin-bottom: 56px;
  line-height: 1.75;
}

.how-comparison {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.how-col {
  padding: 36px;
  border-radius: var(--radius);
}

.how-old {
  background: rgba(255, 71, 87, 0.06);
  border: 1px solid rgba(255, 71, 87, 0.15);
}

.how-new {
  background: var(--accent-dim);
  border: 1px solid rgba(0, 230, 118, 0.2);
}

.how-col-header {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.1rem;
  margin-bottom: 24px;
  letter-spacing: -0.3px;
}

.how-old .how-col-header { color: var(--danger); }
.how-new .how-col-header { color: var(--accent); }

.how-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.how-col li {
  font-size: 0.95rem;
  color: var(--fg-muted);
  padding-left: 20px;
  position: relative;
}

.how-old li::before {
  content: '\2715';
  position: absolute;
  left: 0;
  color: var(--danger);
  font-size: 0.8rem;
}

.how-new li::before {
  content: '\2713';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 0.85rem;
}

/* ========== FEATURES ========== */
.features {
  padding: 100px 6%;
  background: var(--bg-subtle);
}

.features-inner {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.feature-block {
  display: flex;
  gap: 36px;
  align-items: flex-start;
  padding: 36px;
  border-radius: var(--radius);
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.05);
  transition: border-color 0.3s, transform 0.3s;
}

.feature-block:hover {
  border-color: var(--accent-glow);
  transform: translateY(-2px);
}

.feature-num {
  font-family: var(--font-display);
  font-size: 2.8rem;
  font-weight: 700;
  color: rgba(0, 230, 118, 0.2);
  line-height: 1;
  flex-shrink: 0;
  min-width: 60px;
}

.feature-content h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 10px;
  letter-spacing: -0.3px;
}

.feature-content p {
  color: var(--fg-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ========== CLOSING ========== */
.closing {
  padding: 120px 6%;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.closing::before {
  content: '';
  position: absolute;
  bottom: -100px;
  left: 50%;
  transform: translateX(-50%);
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  opacity: 0.5;
}

.closing-inner {
  max-width: 700px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 24px;
  line-height: 1.2;
}

.closing-text {
  color: var(--fg-muted);
  font-size: 1.05rem;
  line-height: 1.8;
}

/* ========== FOOTER ========== */
.site-footer {
  padding: 48px 6%;
  border-top: 1px solid rgba(255,255,255,0.06);
  text-align: center;
}

.footer-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.3rem;
  letter-spacing: -0.5px;
  margin-bottom: 6px;
}

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

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
  .problem-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .how-comparison {
    grid-template-columns: 1fr;
  }

  .feature-block {
    flex-direction: column;
    gap: 16px;
  }

  .hero-visual {
    flex-direction: column;
  }

  .stat-card {
    min-width: unset;
  }

  .p-stat {
    flex-direction: column;
    gap: 4px;
  }

  .p-stat-num {
    min-width: unset;
    font-size: 1.8rem;
  }

  .hero {
    min-height: auto;
    padding-top: 60px;
  }
}