:root {
  --bg: #0a0f0a;
  --bg-elevated: #131a13;
  --fg: #e8efe4;
  --fg-muted: #8a9b84;
  --accent: #4ade80;
  --accent-warm: #fbbf24;
  --accent-glow: rgba(74, 222, 128, 0.15);
  --font-display: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --radius: 16px;
}

* { 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;
  overflow-x: hidden;
}

/* ========== HERO ========== */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 80px 40px 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::after {
  content: '';
  position: absolute;
  bottom: -100px;
  left: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(251, 191, 36, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-inner {
  max-width: 900px;
  position: relative;
  z-index: 1;
}

.hero-tag {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 32px;
  padding: 6px 16px;
  border: 1px solid rgba(74, 222, 128, 0.25);
  border-radius: 100px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(3rem, 7.5vw, 5.5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -2px;
  margin-bottom: 28px;
}

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

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

.hero-lede {
  font-size: clamp(1.1rem, 2.2vw, 1.35rem);
  color: var(--fg-muted);
  max-width: 560px;
  line-height: 1.7;
}

/* ========== PROOF BAR ========== */
.proof-bar {
  padding: 0 40px;
  margin-bottom: 0;
}

.proof-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  gap: 0;
  border-top: 1px solid rgba(74, 222, 128, 0.12);
  border-bottom: 1px solid rgba(74, 222, 128, 0.12);
}

.proof-stat {
  flex: 1;
  padding: 40px 32px;
  border-right: 1px solid rgba(74, 222, 128, 0.12);
}

.proof-stat:last-child { border-right: none; }

.proof-number {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 8px;
}

.proof-label {
  font-size: 14px;
  color: var(--fg-muted);
  letter-spacing: 0.5px;
}

/* ========== FEATURES / HOW IT WORKS ========== */
.features {
  padding: 120px 40px;
  max-width: 1100px;
  margin: 0 auto;
}

.features-header {
  margin-bottom: 72px;
}

.section-tag {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}

.features-header h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -1px;
  max-width: 600px;
}

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

.feature-card {
  background: var(--bg-elevated);
  border: 1px solid rgba(74, 222, 128, 0.08);
  border-radius: var(--radius);
  padding: 40px 36px;
  transition: border-color 0.3s ease, transform 0.3s ease;
}

.feature-card:hover {
  border-color: rgba(74, 222, 128, 0.25);
  transform: translateY(-2px);
}

.feature-card.featured {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, var(--bg-elevated) 0%, rgba(74, 222, 128, 0.05) 100%);
  border-color: rgba(74, 222, 128, 0.15);
}

.feature-icon {
  font-size: 28px;
  margin-bottom: 20px;
  display: block;
}

.feature-card h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.3px;
}

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

/* ========== WHO IT'S FOR ========== */
.audience {
  padding: 100px 40px;
  background: var(--bg-elevated);
}

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

.audience-header {
  margin-bottom: 64px;
}

.audience-header h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -1px;
}

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

.persona {
  padding: 36px 0;
  border-top: 2px solid var(--accent);
}

.persona-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.persona-desc {
  color: var(--fg-muted);
  font-size: 15px;
  line-height: 1.65;
}

/* ========== CLOSING ========== */
.closing {
  padding: 120px 40px;
  text-align: center;
  position: relative;
}

.closing::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 60%);
  pointer-events: none;
}

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

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -1.5px;
  margin-bottom: 24px;
}

.closing p {
  color: var(--fg-muted);
  font-size: 1.15rem;
  line-height: 1.7;
  max-width: 520px;
  margin: 0 auto;
}

/* ========== FOOTER ========== */
footer {
  padding: 48px 40px;
  border-top: 1px solid rgba(74, 222, 128, 0.08);
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

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

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
  .hero { padding: 60px 24px 48px; min-height: auto; padding-top: 100px; }
  .proof-inner { flex-direction: column; }
  .proof-stat { border-right: none; border-bottom: 1px solid rgba(74, 222, 128, 0.12); padding: 24px; }
  .proof-stat:last-child { border-bottom: none; }
  .features { padding: 72px 24px; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-card.featured { grid-column: auto; }
  .audience { padding: 72px 24px; }
  .personas { grid-template-columns: 1fr; gap: 24px; }
  .closing { padding: 80px 24px; }
  .proof-bar { padding: 0 24px; }
  .footer-inner { flex-direction: column; gap: 12px; text-align: center; }
  footer { padding: 36px 24px; }
}