:root {
  --bg: #0a0a0a;
  --fg: #f0f0f0;
  --fg-muted: #888;
  --accent: #00e676;
  --accent-dim: rgba(0, 230, 118, 0.12);
  --card-bg: #141414;
  --card-border: #222;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { font-size: 16px; scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ===== HERO ===== */
.hero {
  padding: 120px 24px 80px;
  max-width: 1100px;
  margin: 0 auto;
}

.hero-inner {
  max-width: 720px;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 6px 14px;
  border-radius: 4px;
  margin-bottom: 28px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.hero h1 .accent {
  color: var(--accent);
}

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

.hero-stat-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 64px;
}

.stat-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.stat-number {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
}

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

/* ===== PROBLEM ===== */
.problem {
  padding: 100px 24px;
  background: var(--card-bg);
  border-top: 1px solid var(--card-border);
  border-bottom: 1px solid var(--card-border);
}

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

.problem h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 56px;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.problem-card {
  padding: 32px 28px;
  border: 1px solid var(--card-border);
  border-radius: 12px;
  background: var(--bg);
}

.problem-icon {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 20px;
  letter-spacing: 0.05em;
}

.problem-card h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.problem-card p {
  font-size: 0.95rem;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* ===== HOW ===== */
.how {
  padding: 100px 24px;
  max-width: 800px;
  margin: 0 auto;
}

.how-label {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 16px;
}

.how h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 56px;
}

.how-steps {
  display: flex;
  flex-direction: column;
  gap: 48px;
}

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

.step-num {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--accent);
  min-width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-dim);
  border-radius: 10px;
  flex-shrink: 0;
}

.step-content h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.step-content p {
  font-size: 0.95rem;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* ===== FEATURES ===== */
.features {
  padding: 100px 24px;
  background: var(--card-bg);
  border-top: 1px solid var(--card-border);
  border-bottom: 1px solid var(--card-border);
}

.features-inner {
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 64px;
}

.feature-block {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: center;
}

.feature-block.reverse {
  grid-template-columns: 0.8fr 1.2fr;
}

.feature-block.reverse .feature-text {
  order: 2;
}

.feature-block.reverse .feature-visual {
  order: 1;
}

.feature-text h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 14px;
}

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

.feature-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 180px;
  background: var(--bg);
  border: 1px solid var(--card-border);
  border-radius: 14px;
}

.feature-tag {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 8px 18px;
  border-radius: 6px;
}

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

.closing-inner {
  max-width: 680px;
  margin: 0 auto;
}

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
  line-height: 1.15;
}

.closing-text {
  font-size: 1.05rem;
  color: var(--fg-muted);
  line-height: 1.75;
}

/* ===== FOOTER ===== */
.site-footer {
  padding: 48px 24px;
  border-top: 1px solid var(--card-border);
  text-align: center;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 6px;
}

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

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .hero { padding: 80px 20px 60px; }
  .hero-stat-row { grid-template-columns: 1fr; gap: 14px; }
  .problem { padding: 72px 20px; }
  .problem-grid { grid-template-columns: 1fr; gap: 20px; }
  .how { padding: 72px 20px; }
  .step { flex-direction: column; gap: 14px; }
  .features { padding: 72px 20px; }
  .feature-block,
  .feature-block.reverse { grid-template-columns: 1fr; gap: 24px; }
  .feature-block.reverse .feature-text { order: 1; }
  .feature-block.reverse .feature-visual { order: 2; }
  .closing { padding: 80px 20px; }
}