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

:root {
  --bg: #0D0D0F;
  --bg-light: #F5F4F0;
  --bg-mid: #1A1A1E;
  --accent: #FF5C2B;
  --text: #F5F4F0;
  --text-dark: #0D0D0F;
  --text-muted: #8A8A94;
  --border: rgba(245, 244, 240, 0.08);
  --font-head: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

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

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

/* Navigation */
.nav {
  padding: 1.5rem 2rem;
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: baseline;
  gap: 1rem;
}
.nav-logo {
  font-family: var(--font-head);
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text);
}
.nav-tagline {
  font-size: 0.8125rem;
  color: var(--text-muted);
  font-weight: 400;
  letter-spacing: 0.01em;
}

/* Hero */
.hero {
  padding: 6rem 2rem 5rem;
  max-width: 1100px;
  margin: 0 auto;
}
.hero-inner {
  max-width: 780px;
}
.hero-label {
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
}
.hero-headline {
  font-family: var(--font-head);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--text);
  margin-bottom: 1.5rem;
}
.hero-sub {
  font-size: 1.125rem;
  color: var(--text-muted);
  max-width: 600px;
  line-height: 1.7;
  margin-bottom: 3rem;
}

/* Workflow */
.hero-workflow {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}
.workflow-step {
  background: var(--bg-mid);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex: 1;
  min-width: 200px;
}
.step-num {
  font-family: var(--font-head);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.05em;
  min-width: 28px;
}
.step-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text);
}
.workflow-arrow {
  color: var(--accent);
  flex-shrink: 0;
}

/* Hero proof */
.hero-proof {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  flex-wrap: wrap;
}
.proof-stat {
  font-family: var(--font-head);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.02em;
}
.proof-text {
  font-size: 0.875rem;
  color: var(--text-muted);
  max-width: 480px;
  line-height: 1.5;
}

/* How section */
.how {
  background: var(--bg-light);
  padding: 6rem 2rem;
}
.how-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.section-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}
.section-headline {
  font-family: var(--font-head);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--text-dark);
  margin-bottom: 3.5rem;
  max-width: 540px;
}
.how-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}
.how-step h3 {
  font-family: var(--font-head);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-dark);
  margin: 1rem 0 0.625rem;
}
.how-step p {
  font-size: 0.9375rem;
  color: #5C5C66;
  line-height: 1.65;
}

/* Features */
.features {
  background: var(--bg);
  padding: 6rem 2rem;
}
.features-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.feature-card {
  background: var(--bg-mid);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.75rem;
}
.feature-icon {
  width: 48px;
  height: 48px;
  background: var(--bg);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}
.feature-card h4 {
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.625rem;
}
.feature-card p {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* Wave */
.wave {
  background: var(--accent);
  padding: 6rem 2rem;
}
.wave-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.wave-tag {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.6);
  margin-bottom: 1.25rem;
}
.wave-headline {
  font-family: var(--font-head);
  font-size: clamp(2rem, 4vw, 3.25rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text);
  line-height: 1.15;
  margin-bottom: 3.5rem;
}
.wave-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  border-top: 1px solid rgba(255,255,255,0.15);
  padding-top: 2.5rem;
}
.wave-stat {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.stat-number {
  font-family: var(--font-head);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.03em;
}
.stat-desc {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.75);
  line-height: 1.5;
}

/* Closing */
.closing {
  background: var(--bg);
  padding: 6rem 2rem 7rem;
}
.closing-inner {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
}
.closing-headline {
  font-family: var(--font-head);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text);
  line-height: 1.15;
  margin-bottom: 1.5rem;
}
.closing-sub {
  font-size: 1.0625rem;
  color: var(--text-muted);
  line-height: 1.75;
  max-width: 580px;
  margin: 0 auto 2.5rem;
}
.closing-cta {
  display: flex;
  justify-content: center;
}
.cta-text {
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: -0.01em;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  padding: 3rem 2rem;
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.footer-brand {
  font-family: var(--font-head);
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 0.75rem;
}
.footer-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  max-width: 480px;
  line-height: 1.6;
  margin-bottom: 1.25rem;
}
.footer-links {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  font-size: 0.8125rem;
  color: var(--text-muted);
}
.footer-sep {
  opacity: 0.4;
}

/* Responsive */
@media (max-width: 768px) {
  .how-steps, .feature-grid, .wave-stats {
    grid-template-columns: 1fr;
  }
  .hero-workflow {
    flex-direction: column;
    align-items: stretch;
  }
  .workflow-arrow {
    transform: rotate(90deg);
    align-self: center;
  }
  .hero {
    padding: 4rem 1.5rem 3.5rem;
  }
  .how, .features, .wave, .closing, .footer {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }
  .wave {
    padding-top: 4rem;
    padding-bottom: 4rem;
  }
  .closing {
    padding-top: 4rem;
    padding-bottom: 5rem;
  }
}