/* Tokens — duplicated from frontend/src/styles/tokens.css. V1 acceptable;
   a unification step is V2 if maintaining two copies becomes painful. */
:root {
  --bg-0: #0a0a24;
  --bg-1: #111138;
  --bg-2: #1a1a4a;
  --border: rgba(255, 255, 255, 0.06);
  --text-0: #f8fafc;
  --text-1: #e2e8f0;
  --text-2: #94a3b8;
  --text-3: #64748b;
  --accent-cyan: #22d3ee;
  --accent-purple: #a855f7;
  --accent-pink: #ec4899;
  --gradient-brand: linear-gradient(135deg, #22d3ee 0%, #a855f7 50%, #ec4899 100%);
  --gradient-cta: linear-gradient(135deg, #7c3aed 0%, #ec4899 100%);
  --font-display: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;
  --tile-radius: 12px;
  --gutter: 14px;
  --max-content-width: 1100px;
}

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg-0);
  color: var(--text-1);
  font-family: var(--font-display);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
.container { max-width: var(--max-content-width); margin: 0 auto; padding: 0 24px; }
a { color: inherit; text-decoration: none; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(10, 10, 36, 0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.header-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 24px;
}
.brand {
  font-family: var(--font-mono); font-weight: 700; font-size: 1.125rem;
  background: var(--gradient-brand);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.site-nav { display: flex; gap: 8px; align-items: center; }
.site-nav a { padding: 8px 12px; color: var(--text-2); border-radius: 8px; }
.site-nav a:hover { color: var(--text-0); background: rgba(255, 255, 255, 0.04); }

/* CTAs */
.cta-primary {
  background: var(--gradient-cta); color: white !important;
  padding: 14px 28px; border-radius: var(--tile-radius);
  font-weight: 600; display: inline-block;
}
.cta-primary:hover { opacity: 0.9; }
.cta-secondary {
  background: rgba(255, 255, 255, 0.06); color: var(--text-1) !important;
  padding: 12px 24px; border-radius: var(--tile-radius);
  border: 1px solid var(--border); display: inline-block;
}
.site-nav .cta-secondary { padding: 8px 16px; }
.cta-secondary:hover { background: rgba(255, 255, 255, 0.1); }
.cta-tertiary {
  color: var(--text-2) !important;
  padding: 14px 16px; display: inline-block;
  text-decoration: underline; text-underline-offset: 4px;
  text-decoration-color: rgba(255, 255, 255, 0.2);
}
.cta-tertiary:hover { color: var(--text-0) !important; text-decoration-color: var(--accent-cyan); }
.cta-double { display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; align-items: center; }
.cta-double .cta-secondary { padding: 14px 28px; }

/* Mobile menu (CSS-only) */
.menu-toggle { display: none; }
.hamburger { display: none; }
@media (max-width: 720px) {
  .hamburger {
    display: block; cursor: pointer; padding: 8px;
  }
  .hamburger span {
    display: block; width: 24px; height: 2px;
    background: var(--text-1); margin: 5px 0; transition: transform 0.2s;
  }
  .site-nav {
    display: none; flex-direction: column; gap: 8px;
    position: absolute; top: 100%; left: 0; right: 0;
    background: var(--bg-1); padding: 16px 24px;
    border-bottom: 1px solid var(--border);
  }
  .menu-toggle:checked ~ .site-nav { display: flex; }
  .site-nav a { padding: 12px; }
  .site-nav .cta-primary,
  .site-nav .cta-secondary { text-align: center; padding: 12px 16px; }
}

/* Typography */
h1, h2, h3, h4 { color: var(--text-0); margin: 0 0 16px; line-height: 1.2; }
h1 { font-size: clamp(2rem, 5vw, 3.5rem); margin: 24px 0; }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); margin: 32px 0 16px; }
h3 { font-size: 1.25rem; margin: 24px 0 12px; }
p { color: var(--text-2); margin: 0 0 16px; }

/* Sections */
section { padding: 64px 0; }
.hero { padding: 80px 0 64px; text-align: center; }
.hero-subtitle {
  color: var(--text-2); font-size: 1.125rem;
  max-width: 640px; margin: 0 auto 32px;
}

/* Cards / grids */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--gutter);
}
.card {
  background: var(--bg-1); padding: 24px;
  border-radius: var(--tile-radius); border: 1px solid var(--border);
}
.card .icon {
  font-family: var(--font-mono);
  color: var(--accent-cyan);
  font-size: 1.25rem; margin-bottom: 12px;
}

/* Footer */
.site-footer {
  background: rgba(0, 0, 0, 0.3);
  padding: 48px 0 24px; margin-top: 64px;
  border-top: 1px solid var(--border);
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 32px;
}
.footer-col h4 {
  font-size: 0.875rem; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--text-2); margin: 0 0 12px;
}
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col li { margin-bottom: 8px; }
.footer-col a { color: var(--text-2); }
.footer-col a:hover { color: var(--accent-cyan); }
.footer-bottom {
  border-top: 1px solid var(--border);
  margin-top: 32px; padding-top: 16px;
  color: var(--text-3); font-size: 0.875rem;
}

/* Form (contact) */
.contact-form {
  max-width: 560px; margin: 0 auto; display: grid; gap: 16px;
}
.contact-form label {
  display: block; font-size: 0.875rem;
  color: var(--text-2); margin-bottom: 4px;
}
.contact-form input, .contact-form textarea {
  width: 100%; background: var(--bg-1);
  border: 1px solid var(--border); color: var(--text-0);
  padding: 12px; border-radius: var(--tile-radius);
  font-family: inherit; font-size: 1rem;
}
.contact-form input:focus, .contact-form textarea:focus {
  outline: none; border-color: var(--accent-cyan);
}
.contact-form textarea { min-height: 140px; resize: vertical; }
.contact-form button {
  background: var(--gradient-cta); color: white;
  padding: 14px; border-radius: var(--tile-radius);
  border: 0; font-weight: 600; cursor: pointer;
}
.contact-form button:hover { opacity: 0.9; }
.contact-honeypot { position: absolute; left: -9999px; opacity: 0; pointer-events: none; }
.contact-success { color: var(--accent-cyan); }
.contact-error { color: var(--status-error, #f43f5e); }

/* Pricing card */
.pricing-card {
  max-width: 480px; margin: 0 auto;
  padding: 40px; background: var(--bg-1);
  border: 1px solid var(--border); border-radius: var(--tile-radius);
  text-align: center;
}
.pricing-card .price {
  font-size: 3rem; font-weight: 800;
  background: var(--gradient-brand);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.pricing-card .price-unit { color: var(--text-2); }
.pricing-card ul {
  text-align: left; margin-top: 24px;
  list-style: none; padding: 0;
}
.pricing-card ul li {
  margin-bottom: 8px; color: var(--text-1);
}

/* Legal pages */
.legal {
  max-width: 760px; margin: 32px auto;
}
.legal h2 { margin-top: 32px; }
.legal p { color: var(--text-2); }
.legal ul, .legal ol { color: var(--text-2); padding-left: 20px; }

/* Lists in default content */
main ul, main ol { color: var(--text-2); padding-left: 20px; }
main li { margin-bottom: 8px; }
main strong { color: var(--text-0); }