:root {
  --bg-dark: #0a0a0f;
  --bg-section: #111118;
  --bg-card: #1a1a24;
  --bg-card-hover: #22222e;
  --accent: #00e599;
  --accent-glow: rgba(0, 229, 153, 0.15);
  --accent-dim: #00b377;
  --text-primary: #f0f0f5;
  --text-secondary: #9999aa;
  --text-muted: #666677;
  --border: #2a2a38;
  --highlight: #ff6b35;
  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

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

/* NAV */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-icon {
  font-size: 24px;
}

.logo-text {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.nav-tagline {
  font-size: 13px;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* HERO */
.hero {
  padding: 160px 24px 100px;
  background: 
    radial-gradient(ellipse 80% 50% at 50% -10%, var(--accent-glow), transparent),
    linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-section) 100%);
}

.hero-inner {
  max-width: 900px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-block;
  padding: 8px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 32px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 28px;
}

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

.hero-sub {
  font-size: 18px;
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: 680px;
  margin-bottom: 56px;
}

.hero-stats {
  display: flex;
  gap: 0;
  align-items: stretch;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
}

.stat {
  flex: 1;
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.stat-number {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 700;
  color: var(--accent);
}

.stat-label {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.4;
}

.stat-divider {
  width: 1px;
  background: var(--border);
}

/* PROBLEM */
.problem {
  padding: 100px 24px;
  background: var(--bg-section);
}

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

.problem h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 56px;
  max-width: 600px;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.problem-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 36px 32px;
  transition: border-color 0.2s;
}

.problem-card:hover {
  border-color: var(--highlight);
}

.problem-icon {
  font-size: 28px;
  margin-bottom: 16px;
}

.problem-card h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.problem-card p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* SERVICES */
.services {
  padding: 100px 24px;
  background: var(--bg-dark);
}

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

.services-header {
  margin-bottom: 56px;
}

.services-header h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
  max-width: 600px;
}

.services-sub {
  font-size: 17px;
  color: var(--text-secondary);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px 28px;
  position: relative;
  transition: border-color 0.2s, transform 0.2s;
}

.service-card:hover {
  border-color: var(--accent-dim);
  transform: translateY(-2px);
}

.service-highlight {
  border-color: var(--accent-dim);
  background: linear-gradient(135deg, var(--bg-card) 0%, rgba(0, 229, 153, 0.05) 100%);
}

.service-tag {
  display: inline-block;
  padding: 4px 12px;
  background: var(--accent);
  color: var(--bg-dark);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-radius: 100px;
  margin-bottom: 16px;
}

.service-card h3 {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.service-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* HOW IT WORKS */
.how {
  padding: 100px 24px;
  background: var(--bg-section);
}

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

.how h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 56px;
}

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

.step {
  display: flex;
  gap: 32px;
  padding: 36px 0;
  border-bottom: 1px solid var(--border);
}

.step:first-child {
  padding-top: 0;
}

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

.step-num {
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 700;
  color: var(--accent);
  opacity: 0.4;
  line-height: 1;
  min-width: 80px;
}

.step-content h3 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 8px;
}

.step-content p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.how-industries {
  margin-top: 64px;
  text-align: center;
}

.industries-label {
  font-size: 13px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 20px;
}

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

.industry-tag {
  padding: 10px 22px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 14px;
  color: var(--text-secondary);
}

/* CLOSING */
.closing {
  padding: 120px 24px;
  background: 
    radial-gradient(ellipse 60% 40% at 50% 110%, var(--accent-glow), transparent),
    var(--bg-dark);
  text-align: center;
}

.closing-inner {
  max-width: 700px;
  margin: 0 auto;
}

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
  line-height: 1.15;
}

.closing-text {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 32px;
}

.closing-bottom {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 40px;
}

.closing-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Shared button styles (used across landing, services, ROI pages) */
.btn-primary {
  display: inline-block;
  padding: 14px 28px;
  background: var(--accent);
  color: var(--bg-dark);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  border-radius: 10px;
  transition: background 0.2s, transform 0.15s;
}

.btn-primary:hover {
  background: var(--accent-dim);
  transform: translateY(-1px);
}

.btn-ghost {
  display: inline-block;
  padding: 14px 28px;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  border-radius: 10px;
  transition: border-color 0.2s, color 0.2s;
}

.btn-ghost:hover {
  border-color: var(--accent-dim);
  color: var(--text-primary);
}

/* Nav links (shared across all pages) */
.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 8px 14px;
  border-radius: 8px;
  transition: color 0.2s, background 0.2s;
}

.nav-link:hover,
.nav-link--active {
  color: var(--text-primary);
  background: var(--bg-card);
}

.nav-cta {
  font-size: 14px;
  font-weight: 600;
  color: var(--bg-dark);
  background: var(--accent);
  text-decoration: none;
  padding: 8px 18px;
  border-radius: 8px;
  transition: background 0.2s, transform 0.15s;
}

.nav-cta:hover {
  background: var(--accent-dim);
  transform: translateY(-1px);
}

.nav-mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 20px;
  cursor: pointer;
}

/* FOOTER */
.footer {
  padding: 48px 24px;
  background: var(--bg-dark);
  border-top: 1px solid var(--border);
  text-align: center;
}

.footer-inner {
  max-width: 600px;
  margin: 0 auto;
}

.footer-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 12px;
}

.footer-text {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.footer-contact {
  font-size: 14px;
  color: var(--text-secondary);
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .nav-tagline {
    display: none;
  }

  .nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--bg-dark);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px;
    gap: 12px;
    z-index: 99;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-mobile-toggle {
    display: block;
  }

  .closing-actions {
    flex-direction: column;
    align-items: center;
  }

  .hero {
    padding: 120px 20px 72px;
  }

  .hero-stats {
    flex-direction: column;
  }

  .stat-divider {
    width: 100%;
    height: 1px;
  }

  .problem-grid {
    grid-template-columns: 1fr;
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .step {
    flex-direction: column;
    gap: 12px;
  }

  .step-num {
    font-size: 36px;
    min-width: auto;
  }

  .industry-tags {
    gap: 8px;
  }

  .industry-tag {
    padding: 8px 16px;
    font-size: 13px;
  }

  .problem,
  .services,
  .how,
  .closing {
    padding: 72px 20px;
  }
}