:root {
  --bg: #0f0f1a;
  --surface: #16162a;
  --surface-2: #1e1e38;
  --fg: #f0ede6;
  --fg-muted: #8a8a9e;
  --accent: #e8a427;
  --accent-dim: rgba(232, 164, 39, 0.12);
  --border: rgba(240, 237, 230, 0.07);
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'DM Sans', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: 'Syne', sans-serif;
  line-height: 1.1;
  font-weight: 700;
}

/* Navbar */
.navbar {
  padding: 1.5rem 2rem;
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 1rem;
}
.nav-logo {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
}
.nav-tagline {
  color: var(--fg-muted);
  font-size: 0.8rem;
  border-left: 1px solid var(--border);
  padding-left: 1rem;
}

/* Hero */
.hero {
  padding: 5rem 2rem 4rem;
  max-width: 1100px;
  margin: 0 auto;
}
.hero-label {
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
  font-weight: 500;
}
.hero-headline {
  font-size: clamp(2.8rem, 6vw, 4.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
  color: var(--fg);
}
.hero-sub {
  font-size: 1.1rem;
  color: var(--fg-muted);
  max-width: 520px;
  margin-bottom: 3rem;
  line-height: 1.7;
}
.hero-stats {
  display: flex;
  align-items: center;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  display: inline-flex;
  overflow: hidden;
}
.stat {
  padding: 1.25rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.stat-value {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--accent);
}
.stat-label {
  font-size: 0.72rem;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.stat-div {
  width: 1px;
  height: 40px;
  background: var(--border);
  flex-shrink: 0;
}

/* Problem */
.problem {
  padding: 5rem 2rem;
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.problem-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.problem-tag, .how-tag, .features-tag {
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
  font-weight: 500;
}
.problem-content h2 {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  margin-bottom: 3rem;
  max-width: 580px;
}
.problem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}
.problem-card {
  background: var(--surface-2);
  padding: 2rem;
}
.problem-icon {
  color: var(--accent);
  font-size: 0.8rem;
  margin-bottom: 1rem;
}
.problem-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}
.problem-card p {
  font-size: 0.9rem;
  color: var(--fg-muted);
  line-height: 1.6;
}

/* How */
.how {
  padding: 5rem 2rem;
}
.how-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.how-inner h2 {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  margin-bottom: 3rem;
}
.steps {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}
.step {
  display: flex;
  gap: 2rem;
  padding: 2rem;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.step:last-child { border-bottom: none; }
.step-num {
  font-family: 'Syne', sans-serif;
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
  opacity: 0.5;
  flex-shrink: 0;
  width: 3rem;
}
.step-body h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.step-body p {
  font-size: 0.9rem;
  color: var(--fg-muted);
  line-height: 1.7;
}

/* Features */
.features {
  padding: 5rem 2rem;
  background: var(--surface);
  border-top: 1px solid var(--border);
}
.features-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.features-inner h2 {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  margin-bottom: 3rem;
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}
.feature {
  padding: 1.75rem;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 10px;
}
.feature-icon {
  color: var(--accent);
  font-size: 0.8rem;
  margin-bottom: 1rem;
}
.feature h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}
.feature p {
  font-size: 0.88rem;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* Principles */
.principles {
  padding: 4rem 2rem;
}
.principles-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.principle-statement {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
}
.principle-statement p {
  font-size: 1.1rem;
  color: var(--fg-muted);
  line-height: 1.8;
  font-style: italic;
}

/* Closing */
.closing {
  padding: 5rem 2rem;
  border-top: 1px solid var(--border);
}
.closing-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.closing h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 1.5rem;
}
.closing p {
  font-size: 1.05rem;
  color: var(--fg-muted);
  max-width: 520px;
  line-height: 1.7;
}

/* Footer */
.footer {
  padding: 2rem;
  border-top: 1px solid var(--border);
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.footer-brand {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 0.95rem;
}
.footer-copy {
  font-size: 0.8rem;
  color: var(--fg-muted);
}

/* Responsive */
@media (max-width: 640px) {
  .hero-stats { flex-direction: column; border-radius: 8px; }
  .stat-div { width: 100%; height: 1px; }
  .step { flex-direction: column; gap: 0.5rem; }
  .footer-inner { flex-direction: column; gap: 0.5rem; text-align: center; }
  .hero { padding-top: 3rem; }
}