:root {
  --bg: #0a0a0c;
  --bg-elevated: #12121a;
  --bg-card: #16161f;
  --fg: #e8e6e1;
  --fg-muted: #8a8890;
  --fg-dim: #5a5865;
  --accent: #d4a853;
  --accent-soft: rgba(212, 168, 83, 0.12);
  --accent-glow: rgba(212, 168, 83, 0.25);
  --green: #4ade80;
  --red: #f87171;
  --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: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ===== HERO ===== */
.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  padding: 120px 24px 80px;
  position: relative;
  background: radial-gradient(ellipse 60% 50% at 50% 0%, rgba(212,168,83,0.06) 0%, transparent 70%);
}

.hero-inner {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.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-soft);
  padding: 8px 20px;
  border-radius: 100px;
  margin-bottom: 40px;
  border: 1px solid rgba(212,168,83,0.15);
}

.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: 28px;
  background: linear-gradient(180deg, #fff 40%, var(--fg-muted) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 19px;
  color: var(--fg-muted);
  max-width: 560px;
  margin: 0 auto 56px;
  line-height: 1.7;
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 40px;
}

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

.stat-num {
  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: 1.5px;
  margin-top: 4px;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--fg-dim);
  opacity: 0.3;
}

/* ===== PROBLEM ===== */
.problem {
  padding: 120px 24px;
  background: var(--bg);
}

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

.problem-label,
.features-label,
.how-label {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 3px;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 20px;
}

.problem h2,
.features h2,
.how h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -1px;
  margin-bottom: 56px;
  max-width: 600px;
}

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

.problem-card {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.04);
  border-radius: var(--radius);
  padding: 36px 28px;
  transition: border-color 0.3s;
}

.problem-card:hover {
  border-color: rgba(212,168,83,0.2);
}

.problem-icon {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 20px;
  opacity: 0.6;
}

.problem-card h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 12px;
}

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

/* ===== FEATURES ===== */
.features {
  padding: 120px 24px;
  background: var(--bg-elevated);
}

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

.features-list {
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.feature-row {
  display: flex;
  gap: 28px;
  align-items: flex-start;
}

.feature-marker {
  width: 3px;
  min-height: 80px;
  background: linear-gradient(180deg, var(--accent) 0%, transparent 100%);
  border-radius: 3px;
  flex-shrink: 0;
  margin-top: 6px;
}

.feature-content h3 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 8px;
}

.feature-content p {
  color: var(--fg-muted);
  font-size: 16px;
  line-height: 1.7;
}

/* ===== HOW ===== */
.how {
  padding: 120px 24px;
  background: var(--bg);
}

.how-inner {
  max-width: 900px;
  margin: 0 auto;
}

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

.how-column {
  padding: 36px 32px;
  border-radius: var(--radius);
}

.how-old {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.04);
}

.how-new {
  background: var(--accent-soft);
  border: 1px solid rgba(212,168,83,0.2);
}

.how-column-header {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 24px;
  color: var(--fg-dim);
}

.how-new .how-column-header {
  color: var(--accent);
}

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

.how-column li {
  font-size: 15px;
  color: var(--fg-muted);
  padding-left: 20px;
  position: relative;
}

.how-column li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--fg-dim);
}

.how-new li {
  color: var(--fg);
}

.how-new li::before {
  background: var(--accent);
}

/* ===== CLOSING ===== */
.closing {
  padding: 140px 24px;
  text-align: center;
  background: radial-gradient(ellipse 60% 40% at 50% 100%, rgba(212,168,83,0.06) 0%, transparent 70%),
              var(--bg-elevated);
}

.closing-inner {
  max-width: 700px;
  margin: 0 auto;
}

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -1.5px;
  margin-bottom: 28px;
  background: linear-gradient(180deg, #fff 30%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.closing-text {
  font-size: 18px;
  color: var(--fg-muted);
  line-height: 1.75;
  max-width: 540px;
  margin: 0 auto;
}

/* ===== FOOTER ===== */
.footer {
  padding: 48px 24px;
  border-top: 1px solid rgba(255,255,255,0.04);
  background: var(--bg);
}

.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-size: 18px;
  font-weight: 700;
  color: var(--fg);
}

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

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .hero { min-height: 80vh; padding: 100px 20px 60px; }
  .hero-stats { flex-direction: column; gap: 20px; }
  .stat-divider { width: 40px; height: 1px; }
  .problem-grid { grid-template-columns: 1fr; gap: 16px; }
  .how-comparison { grid-template-columns: 1fr; }
  .problem, .features, .how { padding: 80px 20px; }
  .closing { padding: 100px 20px; }
  .footer-inner { flex-direction: column; gap: 12px; text-align: center; }
  .feature-row { flex-direction: column; gap: 12px; }
  .feature-marker { width: 40px; min-height: 3px; margin-top: 0; }
}

@media (max-width: 480px) {
  .hero h1 { letter-spacing: -1px; }
  .hero-sub { font-size: 16px; }
  .problem-card { padding: 28px 20px; }
  .how-column { padding: 28px 24px; }
}