:root {
  --bg: #0a0a0c;
  --bg-elevated: #111114;
  --bg-card: #16161a;
  --fg: #e8e6e3;
  --fg-muted: #8a8a8e;
  --accent: #d4a843;
  --accent-soft: rgba(212, 168, 67, 0.12);
  --accent-glow: rgba(212, 168, 67, 0.25);
  --border: rgba(255, 255, 255, 0.06);
  --font-display: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --max-w: 1140px;
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 6rem;
}

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

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;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: var(--space-xl) var(--space-md);
  background: radial-gradient(ellipse 60% 50% at 50% 30%, rgba(212, 168, 67, 0.06) 0%, transparent 70%);
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 1px;
  height: 120px;
  background: linear-gradient(to bottom, transparent, var(--accent), transparent);
}

.hero-badge {
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid rgba(212, 168, 67, 0.2);
  padding: 0.5rem 1.2rem;
  border-radius: 100px;
  margin-bottom: var(--space-md);
  margin-top: var(--space-lg);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 6.5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-md);
}

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

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

.hero-stats {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 16px;
}

.stat { text-align: center; }
.stat-num {
  display: block;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
}
.stat-label {
  font-size: 0.75rem;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.stat-divider {
  width: 1px;
  height: 36px;
  background: var(--border);
}

/* ---- PROBLEM ---- */
.problem {
  padding: var(--space-xl) var(--space-md);
  max-width: var(--max-w);
  margin: 0 auto;
}

.problem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  align-items: center;
}

.problem-text h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: var(--space-sm);
}

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

.problem-visual {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.leak-card {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 1.2rem 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  transition: border-color 0.3s;
}

.leak-card:hover { border-color: rgba(212, 168, 67, 0.3); }

.leak-icon {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.85rem;
  color: var(--accent);
  min-width: 32px;
}

.leak-text {
  font-size: 0.95rem;
  color: var(--fg);
}

/* ---- FEATURES ---- */
.features {
  padding: var(--space-xl) var(--space-md);
  max-width: var(--max-w);
  margin: 0 auto;
}

.features-header {
  text-align: center;
  margin-bottom: var(--space-lg);
}

.features-header h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  margin-bottom: var(--space-xs);
}

.features-sub {
  color: var(--fg-muted);
  font-size: 1.1rem;
  max-width: 540px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
}

.feature-card {
  padding: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  transition: border-color 0.3s, transform 0.3s;
}

.feature-card:hover {
  border-color: rgba(212, 168, 67, 0.2);
  transform: translateY(-2px);
}

.feature-large { grid-column: 1 / -1; }

.feature-num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.8rem;
  color: var(--accent);
  margin-bottom: 1rem;
}

.feature-card h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

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

/* ---- HOW ---- */
.how {
  padding: var(--space-xl) var(--space-md);
  max-width: var(--max-w);
  margin: 0 auto;
}

.how h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  text-align: center;
  margin-bottom: var(--space-lg);
}

.how-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
}

.how-steps::before {
  content: '';
  position: absolute;
  left: 23px;
  top: 48px;
  bottom: 48px;
  width: 1px;
  background: linear-gradient(to bottom, var(--accent), rgba(212, 168, 67, 0.1));
}

.how-step {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-md) 0;
}

.step-marker {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--accent-soft);
  border: 1px solid rgba(212, 168, 67, 0.3);
  font-family: var(--font-display);
  font-weight: 800;
  color: var(--accent);
  font-size: 1.1rem;
  position: relative;
  z-index: 1;
}

.step-content h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.step-content p {
  color: var(--fg-muted);
  font-size: 0.95rem;
  max-width: 520px;
}

/* ---- CLOSING ---- */
.closing {
  padding: var(--space-xl) var(--space-md);
  text-align: center;
}

.closing-inner {
  max-width: 700px;
  margin: 0 auto;
  padding: var(--space-lg);
  background: radial-gradient(ellipse 80% 60% at 50% 50%, rgba(212, 168, 67, 0.06) 0%, transparent 70%);
  border-radius: 24px;
}

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  margin-bottom: var(--space-sm);
  line-height: 1.15;
}

.closing p {
  color: var(--fg-muted);
  font-size: 1.1rem;
  line-height: 1.75;
}

/* ---- FOOTER ---- */
.site-footer {
  padding: var(--space-md);
  border-top: 1px solid var(--border);
  text-align: center;
}

.footer-brand {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--fg);
}

.footer-tagline {
  font-size: 0.8rem;
  color: var(--fg-muted);
  margin-top: 0.25rem;
}

/* ---- RESPONSIVE ---- */
@media (max-width: 768px) {
  .problem-grid { grid-template-columns: 1fr; gap: var(--space-md); }
  .features-grid { grid-template-columns: 1fr; }
  .feature-large { grid-column: 1; }
  .hero-stats { flex-direction: column; gap: var(--space-sm); padding: var(--space-sm); }
  .stat-divider { width: 36px; height: 1px; }
  .how-step { gap: var(--space-sm); }
  .how-steps::before { left: 23px; }
  .hero { min-height: 80vh; padding: var(--space-lg) var(--space-sm); }
  .hero h1 { font-size: clamp(2.5rem, 10vw, 4rem); }
}