:root {
  --bg: #0C0F0A;
  --bg-elevated: #161B13;
  --bg-card: #1C221A;
  --fg: #E8E6E1;
  --fg-muted: #9A9890;
  --accent: #B8E533;
  --accent-dim: rgba(184, 229, 51, 0.15);
  --accent-glow: rgba(184, 229, 51, 0.08);
  --orange: #F28C28;
  --red-stat: #FF6B4A;
  --border: rgba(232, 230, 225, 0.08);
  --radius: 12px;
  --radius-lg: 20px;
  --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);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ─── NAV ─── */
.nav {
  padding: 24px 40px;
  display: flex;
  align-items: center;
}

.logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--fg);
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-mark {
  color: var(--accent);
  font-size: 1.5rem;
}

/* ─── HERO ─── */
.hero {
  padding: 60px 40px 80px;
  max-width: 1200px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  background: var(--accent-dim);
  color: var(--accent);
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: 100px;
  margin-bottom: 28px;
}

.hero-content h1 {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5.5vw, 4.2rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: var(--fg);
  margin-bottom: 24px;
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 620px;
  line-height: 1.7;
  margin-bottom: 56px;
}

/* Hero visual: flow diagram */
.hero-visual {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.visual-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 28px;
  text-align: center;
  flex: 1;
  min-width: 160px;
}

.card-icon {
  font-size: 2rem;
  margin-bottom: 10px;
}

.card-label {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--fg);
}

.visual-arrow {
  font-size: 1.5rem;
  color: var(--accent);
  font-weight: 700;
}

/* ─── PROBLEM ─── */
.problem {
  background: var(--bg-elevated);
  padding: 80px 40px;
}

.problem-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.section-label {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 40px;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
  margin-bottom: 40px;
}

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

.stat-number {
  font-family: var(--font-display);
  font-size: 2.8rem;
  font-weight: 700;
  color: var(--orange);
  line-height: 1;
  margin-bottom: 12px;
}

.stat-desc {
  font-size: 0.95rem;
  color: var(--fg-muted);
  line-height: 1.5;
}

.problem-statement {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 500;
  color: var(--fg);
  max-width: 700px;
  line-height: 1.5;
}

/* ─── FEATURES ─── */
.features {
  padding: 80px 40px;
  max-width: 1200px;
  margin: 0 auto;
}

.feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.feature-block {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
  transition: border-color 0.2s;
}

.feature-block:hover {
  border-color: rgba(184, 229, 51, 0.25);
}

.feature-large {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, var(--bg-card) 0%, rgba(184, 229, 51, 0.04) 100%);
  border-color: rgba(184, 229, 51, 0.15);
}

.feature-number {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}

.feature-block h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 10px;
}

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

/* ─── HOW IT WORKS ─── */
.how-it-works {
  background: var(--bg-elevated);
  padding: 80px 40px;
}

.how-it-works .section-label {
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

.steps {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  gap: 0;
}

.step {
  display: flex;
  gap: 28px;
  padding: 32px 0;
  border-bottom: 1px solid var(--border);
  align-items: flex-start;
}

.step:last-child {
  border-bottom: none;
}

.step-num {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  min-width: 48px;
}

.step-content h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 6px;
}

.step-content p {
  font-size: 0.95rem;
  color: var(--fg-muted);
  line-height: 1.6;
  max-width: 560px;
}

/* ─── CLOSING ─── */
.closing {
  padding: 100px 40px;
  text-align: center;
}

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

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--fg);
  margin-bottom: 20px;
}

.closing-sub {
  font-size: 1.05rem;
  color: var(--fg-muted);
  line-height: 1.7;
  margin-bottom: 40px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.trades {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}

.trade-tag {
  padding: 8px 18px;
  background: var(--accent-dim);
  color: var(--accent);
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: 100px;
  letter-spacing: 0.02em;
}

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

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

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

/* ─── RESPONSIVE ─── */
@media (max-width: 768px) {
  .hero { padding: 40px 20px 60px; }
  .nav { padding: 20px; }
  .hero-content h1 { font-size: 2rem; }
  .hero-visual { flex-direction: column; align-items: stretch; }
  .visual-arrow { text-align: center; transform: rotate(90deg); }
  .problem, .how-it-works { padding: 60px 20px; }
  .features { padding: 60px 20px; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-large { grid-column: 1; }
  .stat-grid { grid-template-columns: 1fr; }
  .closing { padding: 60px 20px; }
  .step { flex-direction: column; gap: 12px; }
  .footer { padding: 30px 20px; }
  .footer-inner { flex-direction: column; gap: 12px; text-align: center; }
}