* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; 
  padding: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--bg);
  min-height: 100vh;
}
a { color: inherit; }
.skip-link { position: absolute; left:-9999px; }

/* Shell and Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 24px;
}
.brand-block { display: flex; flex-direction: column; gap: 4px; }
.brand { font-family: var(--font-display); font-weight: 700; font-size: 1.25rem; }
.subbrand { font-size: 0.85rem; opacity: 0.8; }
.header-actions { display: flex; align-items: center; gap: 10px; }

/* UI elements */
.version-switch, .theme-toggle, .lang-switch, .lang-flag {
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--line);
  padding: 8px 12px;
  text-decoration: none;
  font-weight: 600; font-size: 0.85rem;
  background: var(--surface); color: var(--ink);
  cursor: pointer;
}
.version-switch a { padding: 0 4px; text-decoration: none; opacity: 0.6; }
.version-switch a.is-active { opacity: 1; font-weight: 800; color: var(--brand); }
.lang-flag.is-active { background: var(--brand); color: var(--on-brand); }

/* Main structure */
main { width: min(1200px, calc(100% - 40px)); margin: 40px auto; display: flex; flex-direction: column; gap: 40px; }
.section-shell { padding: 40px; }
.intro-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.info-card { padding: 24px; }
.stage-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.stage-card { padding: 24px; }
.pricing-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.price-card { padding: 20px; display: flex; flex-direction: column; gap: 8px; }
.process-list { list-style: none; padding: 0; display: grid; gap: 16px; margin-top: 24px; }
.process-list li { display: grid; grid-template-columns: auto 1fr; gap: 16px; padding: 20px; align-items: start; }
.cta-card { padding: 40px; display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 40px; }
.cta-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* Hero */
.hero { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
.hero-cta { display: flex; gap: 12px; margin-top: 24px; }
.btn {
  padding: 12px 20px;
  font-weight: 700;
  text-decoration: none;
  display: inline-flex; align-items: center; justify-content: center;
}
.hero-metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 30px; }
.metric { padding: 16px; }
.hero-panel { position: relative; width: 100%; aspect-ratio: 4/3; min-height: 280px; }
.hero-art{display:grid;gap:10px}
.compare-toplabels{display:flex;justify-content:space-between;align-items:center;padding:0 4px}
.compare-pill{display:inline-flex;align-items:center;justify-content:center;padding:4px 10px;border-radius:999px;background:rgba(255,255,255,.88);color:#0b0d11;font-size:.74rem;font-weight:800;text-transform:uppercase;letter-spacing:.06em}
.compare-slider { position: relative; width: 100%; aspect-ratio: 4/3; overflow: hidden; margin: 0; border-radius: 12px; background:#0f1218 url('../assets/before.png') center/cover no-repeat; }
.compare-slider img { width: 100%; height: 100%; object-fit: cover; display:none; }
.compare-after { position: absolute; inset: 0; clip-path: inset(0 calc(100% - var(--split, 50%)) 0 0); background:#10151f url('../assets/after.png') center/cover no-repeat; }
.compare-after img{display:none;}
.compare-divider { position: absolute; top:0; bottom:0; left: var(--split, 50%); width:2px; background: rgba(0,0,0,.86); box-shadow: 0 0 0 1px rgba(255,255,255,.75); transform: translateX(-50%); z-index: 14; pointer-events: none;}
.compare-range { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 20; opacity: 0; cursor: ew-resize; margin:0;}
.panel-badge { position: absolute; bottom: -16px; left: 50%; transform: translateX(-50%); z-index: 30; padding: 10px 20px; white-space: nowrap; font-weight: 700; }

/* Headings */
h1 { font-family: var(--font-display); margin: 0; }
h2 { font-family: var(--font-display); margin: 0 0 16px; }
h3 { font-family: var(--font-display); margin: 0; }
p { margin: 0; line-height: 1.5; color: var(--muted); }
.eyebrow { text-transform: uppercase; font-weight: 800; letter-spacing: 0.05em; margin-bottom: 8px; font-size: 0.85rem; color: var(--brand); }

@media (max-width: 900px) {
  .hero, .intro-grid, .stage-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr 1fr; }
  .cta-card { grid-template-columns: 1fr; }
  .hero-panel { max-height: 400px; }
}
@media (max-width: 600px) {
  .pricing-grid { grid-template-columns: 1fr; }
  .hero-metrics { grid-template-columns: 1fr; }
  .site-header { flex-direction: column; align-items: stretch; gap: 16px; }
  main { width: 100%; padding: 0 16px; }
}


/* Variant Adjustments */


:root {
  --font-body: 'Plus Jakarta Sans', system-ui, sans-serif;
  --font-display: 'Plus Jakarta Sans', system-ui, sans-serif;
  --bg: #f2f7fc;
  --surface: rgba(255, 255, 255, 0.45);
  --line: rgba(255, 255, 255, 0.6);
  --ink: #111822;
  --muted: #4b5563;
  --brand: #2563eb;
  --on-brand: #ffffff;
  --radius: 32px;
}
html[data-theme="dark"] {
  --bg: #0f172a;
  --surface: rgba(30, 41, 59, 0.45);
  --line: rgba(255, 255, 255, 0.1);
  --ink: #f8fafc;
  --muted: #94a3b8;
  --brand: #60a5fa;
  --on-brand: #0f172a;
}
body {
  background-image: 
    radial-gradient(circle at 10% 20%, rgba(37, 99, 235, 0.12), transparent 40%),
    radial-gradient(circle at 90% 80%, rgba(147, 51, 234, 0.1), transparent 40%),
    linear-gradient(135deg, var(--bg) 0%, var(--bg) 100%);
  background-attachment: fixed;
}
html[data-theme="dark"] body {
  background-image: 
    radial-gradient(circle at 10% 20%, rgba(96, 165, 250, 0.15), transparent 40%),
    radial-gradient(circle at 90% 80%, rgba(192, 132, 252, 0.12), transparent 40%);
}
.site-header, .section-shell, .info-card, .stage-card, .price-card, .process-list li, .cta-card, .metric, .version-switch, .theme-toggle, .lang-switch, .lang-flag, .panel-badge {
  background: var(--surface);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 10px 30px rgba(0,0,0,0.04);
}
.site-header { border-radius: 0 0 var(--radius) var(--radius); margin-bottom: 24px; }
.btn { border-radius: 999px; }
.btn-primary { background: var(--brand); color: var(--on-brand); box-shadow: 0 8px 24px rgba(37,99,235,0.3); border: none;}
.btn-ghost { background: var(--surface); border: 1px solid var(--line); color: var(--ink); }
h1 { font-size: clamp(2.5rem, 5vw, 4rem); font-weight: 800; letter-spacing: -0.03em; }
.compare-slider { border-radius: var(--radius); border: 2px solid var(--line); }
.panel-badge { border-radius: 999px; }
.process-list li > span { background: var(--brand); color: var(--on-brand); padding: 8px 16px; border-radius: 20px; font-weight: 800; }