/* ============================================================================
   ZARAI.AI — DESIGN SYSTEM v2.0
   Full design tokens, typography, layout, components.
   Zero duplication. One source of truth.
   ============================================================================ */

/* — DESIGN TOKENS — */
:root {
  /* Surface palette */
  --bg:             #13111C;
  --bg-surface:     #1a1726;
  --bg-card:        #211e2e;
  --bg-card-hover:  #2a2640;
  --bg-elevated:    #2e2a3d;

  /* Borders */
  --border:         rgba(255,255,255,0.06);
  --border-accent:  rgba(124,108,240,0.20);
  --border-strong:  rgba(124,108,240,0.35);

  /* Text hierarchy */
  --text:           #f0eef5;
  --text-secondary: #9892a6;
  --text-dim:       #6b6580;
  --text-muted:     #524c63;

  /* Accents */
  --accent:         #7c6cf0;
  --accent-soft:    #6e5de0;
  --accent-warm:    #5eead4;
  --accent-blue:    #818cf8;
  --accent-rose:    #f472b6;
  --accent-amber:   #fbbf24;
  --accent-green:   #2ed573;
  --accent-glow:    rgba(124,108,240,0.10);

  /* Gradients */
  --gradient:        linear-gradient(135deg, #7c6cf0 0%, #5eead4 100%);
  --gradient-subtle: linear-gradient(135deg, rgba(124,108,240,0.10), rgba(94,234,212,0.06));
  --gradient-warm:   linear-gradient(135deg, #f472b6, #7c6cf0);
  --gradient-cool:   linear-gradient(135deg, #818cf8, #5eead4);

  /* Typography */
  --font:         'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-display: 'Space Grotesk', 'Inter', sans-serif;
  --font-mono:    'JetBrains Mono', 'Fira Code', 'Consolas', monospace;

  /* Radii */
  --radius:    16px;
  --radius-sm: 10px;
  --radius-xs: 6px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow:       0 4px 24px rgba(0,0,0,0.3);
  --shadow-lg:    0 12px 48px rgba(0,0,0,0.4);
  --shadow-glow:  0 0 40px rgba(124,108,240,0.15);
  --shadow-accent: 0 4px 20px rgba(124,108,240,0.25);

  /* Transitions */
  --ease:        cubic-bezier(0.4, 0, 0.2, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration:    0.3s;
  --duration-fast: 0.15s;

  /* Layout */
  --nav-height: 64px;
  --max-width:  1200px;
  --max-width-narrow: 900px;
  --max-width-content: 800px;
}


/* — RESET & FOUNDATIONS — */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  background: var(--bg);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
  line-height: 1.6;
}

a { color: inherit; text-decoration: none; }
button, input, select, textarea { font-family: inherit; }
button { cursor: pointer; border: none; background: none; color: inherit; }
img { max-width: 100%; display: block; }
::selection { background: rgba(124,108,240,0.25); color: #fff; }

/* Focus styles for accessibility */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}


/* — CANVAS BACKGROUND — */
#bgCanvas {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: -1;
  pointer-events: none;
  opacity: 0.3;
}


/* — NAVIGATION — */
.z-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 0 32px;
  height: var(--nav-height);
  background: rgba(19,17,28,0.82);
  backdrop-filter: blur(24px) saturate(1.2);
  -webkit-backdrop-filter: blur(24px) saturate(1.2);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  transition: background var(--duration) var(--ease), box-shadow var(--duration) var(--ease);
}
.z-nav.scrolled {
  background: rgba(19,17,28,0.95);
  box-shadow: 0 4px 32px rgba(0,0,0,0.4);
}
.z-nav-brand {
  font-family: var(--font-display);
  font-weight: 700; font-size: 22px;
  background: var(--gradient);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
  transition: opacity var(--duration) var(--ease);
}
.z-nav-brand:hover { opacity: 0.85; }

.z-nav-links {
  display: flex; gap: 8px; align-items: center;
}
.z-nav-links a {
  font-size: 14px; font-weight: 500;
  color: var(--text-secondary);
  padding: 8px 14px;
  border-radius: var(--radius-xs);
  transition: color var(--duration-fast) var(--ease), background var(--duration-fast) var(--ease);
  position: relative;
}
.z-nav-links a:hover {
  color: var(--text);
  background: rgba(255,255,255,0.04);
}
.z-nav-links a.active {
  color: var(--accent);
  background: var(--accent-glow);
}

.z-nav-right {
  display: flex; align-items: center; gap: 12px;
}
.z-nav-cta {
  padding: 8px 20px; border-radius: 8px;
  font-size: 14px; font-weight: 600;
  background: var(--gradient); color: #fff;
  transition: opacity var(--duration) var(--ease), transform var(--duration) var(--ease);
  box-shadow: 0 2px 12px rgba(124,108,240,0.2);
}
.z-nav-cta:hover { opacity: 0.9; transform: translateY(-1px); }

.z-nav-toggle {
  display: none;
  width: 40px; height: 40px;
  border-radius: var(--radius-xs);
  align-items: center; justify-content: center;
  font-size: 22px;
  color: var(--text);
  transition: background var(--duration-fast);
}
.z-nav-toggle:hover { background: rgba(255,255,255,0.06); }

/* Mobile nav */
.z-nav-mobile {
  display: none;
  position: fixed; top: var(--nav-height); left: 0; right: 0;
  background: rgba(19,17,28,0.96);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--border);
  padding: 16px 24px;
  flex-direction: column; gap: 4px;
  z-index: 999;
  transform: translateY(-10px);
  opacity: 0;
  transition: transform var(--duration) var(--ease), opacity var(--duration) var(--ease);
}
.z-nav-mobile.open {
  display: flex;
  transform: translateY(0);
  opacity: 1;
}
.z-nav-mobile a {
  font-size: 15px; font-weight: 500;
  color: var(--text-secondary);
  padding: 12px 16px;
  border-radius: var(--radius-xs);
  transition: color var(--duration-fast), background var(--duration-fast);
}
.z-nav-mobile a:hover, .z-nav-mobile a.active {
  color: var(--text);
  background: rgba(255,255,255,0.04);
}
.z-nav-mobile a.active { color: var(--accent); }


/* — HERO SECTIONS — */
.z-hero {
  min-height: 100vh;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  text-align: center;
  padding: calc(var(--nav-height) + 48px) 24px 80px;
  position: relative;
  overflow: hidden;
}
.z-hero-short {
  min-height: 60vh;
  padding-bottom: 48px;
}

.z-hero::before {
  content: ''; position: absolute;
  top: -100px; left: 50%; transform: translateX(-50%);
  width: 900px; height: 900px; border-radius: 50%;
  background: radial-gradient(circle, rgba(124,108,240,0.08) 0%, rgba(94,234,212,0.04) 40%, transparent 70%);
  pointer-events: none;
  animation: heroGlow 8s ease-in-out infinite alternate;
}
@keyframes heroGlow {
  0% { opacity: 0.6; transform: translateX(-50%) scale(1); }
  100% { opacity: 1; transform: translateX(-50%) scale(1.08); }
}

.z-hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 16px; border-radius: var(--radius-full);
  background: var(--gradient-subtle);
  border: 1px solid var(--border-accent);
  font-size: 13px; font-weight: 500; color: var(--accent);
  margin-bottom: 28px;
}
.z-hero-badge .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent-warm);
  animation: dotPulse 2s ease infinite;
}
@keyframes dotPulse { 0%,100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.4; transform: scale(0.8); } }

.z-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(40px, 7vw, 80px);
  font-weight: 800; line-height: 1.05;
  letter-spacing: -0.035em;
  margin-bottom: 20px; max-width: 850px;
}
.z-hero h1 .gr {
  background: var(--gradient);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}

.z-hero-sub {
  font-size: clamp(16px, 2vw, 20px);
  color: var(--text-secondary);
  max-width: 580px; line-height: 1.65;
  margin-bottom: 36px;
}

.z-hero-actions {
  display: flex; gap: 14px;
  flex-wrap: wrap; justify-content: center;
}


/* — BUTTONS — */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-weight: 600; border-radius: 12px;
  transition: transform var(--duration) var(--ease), box-shadow var(--duration) var(--ease), opacity var(--duration);
  position: relative;
  overflow: hidden;
}
.btn::after {
  content: ''; position: absolute; inset: 0;
  background: rgba(255,255,255,0);
  transition: background var(--duration-fast);
}
.btn:hover::after { background: rgba(255,255,255,0.05); }
.btn:active { transform: scale(0.98); }

.btn-lg { padding: 14px 32px; font-size: 16px; }
.btn-md { padding: 10px 24px; font-size: 14px; }
.btn-sm { padding: 8px 18px; font-size: 13px; }

.btn-primary {
  background: var(--gradient); color: #fff;
  box-shadow: var(--shadow-accent);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(124,108,240,0.35); }

.btn-secondary {
  background: rgba(33,30,46,0.9);
  border: 1px solid var(--border); color: var(--text);
}
.btn-secondary:hover { border-color: var(--border-accent); background: var(--bg-card-hover); transform: translateY(-2px); }

.btn-ghost {
  background: transparent;
  border: 1px solid var(--border); color: var(--text-secondary);
}
.btn-ghost:hover { border-color: var(--border-accent); color: var(--text); }

.btn-accent {
  background: var(--accent-glow);
  border: 1px solid var(--border-accent); color: var(--accent);
}
.btn-accent:hover { background: rgba(124,108,240,0.15); }


/* — SECTION LAYOUT — */
.z-section {
  padding: 96px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
}
.z-section-narrow { max-width: var(--max-width-narrow); }
.z-section-full { max-width: none; }

.z-section-label {
  font-size: 13px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.12em;
  color: var(--accent); margin-bottom: 12px;
}
.z-section-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 700; margin-bottom: 16px;
  letter-spacing: -0.025em;
  line-height: 1.15;
}
.z-section-desc {
  font-size: 17px; color: var(--text-secondary);
  max-width: 600px; line-height: 1.65;
  margin-bottom: 48px;
}
.z-section-center { text-align: center; }
.z-section-center .z-section-desc { margin-left: auto; margin-right: auto; }


/* — STATS BAR — */
.z-stats {
  display: flex; gap: 48px; justify-content: center;
  padding: 48px 24px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: rgba(19,17,28,0.7);
  backdrop-filter: blur(8px);
}
.z-stat { text-align: center; }
.z-stat-number {
  font-family: var(--font-display);
  font-size: 36px; font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.z-stat-label {
  font-size: 14px; color: var(--text-dim); margin-top: 4px;
}


/* — CARDS — */
.z-card {
  background: rgba(33,30,46,0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: border-color var(--duration) var(--ease),
              transform var(--duration) var(--ease),
              box-shadow var(--duration) var(--ease);
  position: relative;
  overflow: hidden;
}
.z-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(124,108,240,0.08);
}
.z-card::before {
  content: ''; position: absolute;
  top: 0; left: 0; right: 0; height: 2px;
  background: var(--gradient);
  opacity: 0; transition: opacity var(--duration);
}
.z-card:hover::before { opacity: 1; }

.z-card-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 26px; margin-bottom: 18px;
  background: var(--gradient-subtle);
}
.z-card h3 {
  font-family: var(--font-display);
  font-size: 19px; font-weight: 600;
  margin-bottom: 8px;
}
.z-card p {
  font-size: 14px; color: var(--text-secondary);
  line-height: 1.65;
}


/* — GRID LAYOUTS — */
.z-grid {
  display: grid;
  gap: 24px;
}
.z-grid-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.z-grid-3 { grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); }
.z-grid-4 { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }


/* — TAGS / BADGES — */
.z-tag {
  display: inline-block;
  padding: 4px 12px; border-radius: var(--radius-xs);
  font-size: 11px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.06em;
}
.z-tag-live   { background: rgba(46,213,115,0.12); color: var(--accent-green); }
.z-tag-beta   { background: rgba(124,108,240,0.12); color: var(--accent); }
.z-tag-soon   { background: rgba(255,255,255,0.06); color: var(--text-dim); }
.z-tag-hot    { background: rgba(244,114,182,0.12); color: var(--accent-rose); }
.z-tag-free   { background: rgba(46,213,115,0.12); color: var(--accent-green); }
.z-tag-pro    { background: rgba(124,108,240,0.10); color: var(--accent); }


/* — CTA SECTION — */
.z-cta {
  text-align: center;
  padding: 96px 24px;
  background: var(--gradient-subtle);
  border-top: 1px solid var(--border-accent);
  border-bottom: 1px solid var(--border-accent);
  position: relative;
  overflow: hidden;
}
.z-cta::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse at center, rgba(124,108,240,0.06), transparent 70%);
  pointer-events: none;
}
.z-cta h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700; margin-bottom: 16px;
  position: relative;
}
.z-cta p {
  font-size: 17px; color: var(--text-secondary);
  max-width: 520px; margin: 0 auto 32px;
  line-height: 1.6;
  position: relative;
}


/* — FOOTER — */
.z-footer {
  padding: 64px 24px 32px;
  max-width: var(--max-width);
  margin: 0 auto;
  border-top: 1px solid var(--border);
}
.z-footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px; margin-bottom: 48px;
}
.z-footer-brand .z-nav-brand {
  margin-bottom: 12px; display: inline-block;
}
.z-footer-brand p {
  font-size: 14px; color: var(--text-dim);
  line-height: 1.6; max-width: 280px;
}
.z-footer-col h4 {
  font-size: 12px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.12em;
  color: var(--text-dim); margin-bottom: 16px;
}
.z-footer-col a {
  display: block; font-size: 14px;
  color: var(--text-secondary);
  padding: 4px 0;
  transition: color var(--duration-fast);
}
.z-footer-col a:hover { color: var(--text); }

.z-footer-bottom {
  display: flex; justify-content: space-between;
  align-items: center;
  font-size: 13px; color: var(--text-dim);
  padding-top: 24px;
  border-top: 1px solid var(--border);
}
.z-footer-socials {
  display: flex; gap: 20px;
}
.z-footer-socials a {
  color: var(--text-dim);
  transition: color var(--duration-fast);
}
.z-footer-socials a:hover { color: var(--accent); }


/* — FORM ELEMENTS — */
.z-input, .z-select {
  width: 100%;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 15px; font-family: var(--font);
  transition: border-color var(--duration) var(--ease), box-shadow var(--duration);
}
.z-input:focus, .z-select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(124,108,240,0.1);
}
.z-input::placeholder { color: var(--text-dim); }
.z-select { cursor: pointer; }
.z-select option { background: var(--bg-card); color: var(--text); }

.z-form-group { margin-bottom: 20px; }
.z-form-label {
  display: block; font-size: 12px; font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
  text-transform: uppercase; letter-spacing: 0.06em;
}
.z-form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }


/* — PRICING CARDS — */
.z-pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px; max-width: 1000px; margin: 0 auto;
}
.z-pricing-card {
  background: rgba(33,30,46,0.9);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
  transition: border-color var(--duration), transform var(--duration);
  position: relative;
  display: flex; flex-direction: column;
}
.z-pricing-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-4px);
}
.z-pricing-card.featured {
  border-color: var(--accent);
  background: linear-gradient(180deg, rgba(124,108,240,0.08), rgba(33,30,46,0.95));
  box-shadow: var(--shadow-glow);
}
.z-pricing-card.featured::before {
  content: 'MOST POPULAR';
  position: absolute; top: -12px; left: 50%;
  transform: translateX(-50%);
  padding: 4px 16px; border-radius: var(--radius-full);
  font-size: 11px; font-weight: 700;
  background: var(--gradient); color: #fff;
  letter-spacing: 0.06em;
}
.z-pricing-name {
  font-family: var(--font-display);
  font-size: 20px; font-weight: 700; margin-bottom: 8px;
}
.z-pricing-price {
  font-family: var(--font-display);
  font-size: 48px; font-weight: 800;
  margin: 12px 0;
}
.z-pricing-price span {
  font-size: 16px; color: var(--text-secondary); font-weight: 400;
}
.z-pricing-desc {
  font-size: 14px; color: var(--text-secondary); margin-bottom: 24px;
}
.z-pricing-features {
  list-style: none; margin-bottom: 28px; flex-grow: 1;
}
.z-pricing-features li {
  font-size: 14px; color: var(--text-secondary);
  padding: 8px 0;
  border-bottom: 1px solid rgba(255,255,255,0.03);
  display: flex; align-items: center; gap: 10px;
}
.z-pricing-features li::before {
  content: '✓'; color: var(--accent-warm);
  font-weight: 700; flex-shrink: 0;
}
.z-pricing-features li.excluded {
  opacity: 0.35;
}
.z-pricing-features li.excluded::before {
  content: '—'; color: var(--text-dim);
}
.z-pricing-btn {
  display: block; width: 100%;
  padding: 14px; border-radius: 12px;
  font-size: 15px; font-weight: 700;
  text-align: center;
  transition: all var(--duration) var(--ease);
  cursor: pointer;
}


/* — TESTIMONIAL CARDS — */
.z-testimonial {
  background: rgba(33,30,46,0.8);
  backdrop-filter: blur(6px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  position: relative;
}
.z-testimonial::before {
  content: '"'; position: absolute;
  top: 12px; right: 24px;
  font-family: Georgia, serif;
  font-size: 64px;
  color: rgba(124,108,240,0.08);
  line-height: 1;
}
.z-testimonial-stars {
  color: var(--accent-amber);
  font-size: 14px; letter-spacing: 2px;
  margin-bottom: 14px;
}
.z-testimonial-text {
  font-size: 15px; color: var(--text-secondary);
  line-height: 1.7; margin-bottom: 18px;
  font-style: italic;
}
.z-testimonial-author {
  display: flex; align-items: center; gap: 12px;
}
.z-testimonial-avatar {
  width: 42px; height: 42px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; font-weight: 600;
  color: #fff;
}
.z-testimonial-name { font-weight: 600; font-size: 14px; }
.z-testimonial-role { font-size: 12px; color: var(--text-dim); }


/* — LEGAL / CONTENT PAGES — */
.z-legal {
  max-width: var(--max-width-content);
  margin: 0 auto;
  padding: calc(var(--nav-height) + 48px) 24px 80px;
}
.z-legal-header {
  margin-bottom: 48px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border);
}
.z-legal-header h1 {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 800; margin-bottom: 12px;
  letter-spacing: -0.02em;
}
.z-legal-header .meta {
  font-size: 14px; color: var(--text-dim);
}
.z-legal-content h2 {
  font-family: var(--font-display);
  font-size: 22px; font-weight: 700;
  margin: 40px 0 16px;
  letter-spacing: -0.01em;
}
.z-legal-content h3 {
  font-family: var(--font-display);
  font-size: 18px; font-weight: 600;
  margin: 28px 0 12px;
}
.z-legal-content p {
  font-size: 15px; color: var(--text-secondary);
  line-height: 1.8; margin-bottom: 16px;
}
.z-legal-content ul, .z-legal-content ol {
  margin: 12px 0 20px 24px;
  color: var(--text-secondary);
}
.z-legal-content li {
  font-size: 15px; line-height: 1.7; margin-bottom: 8px;
}
.z-legal-content strong { color: var(--text); }
.z-legal-content a { color: var(--accent); }
.z-legal-content a:hover { text-decoration: underline; }


/* — ANIMATIONS — */
.fade-up {
  opacity: 0; transform: translateY(28px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.fade-up.visible {
  opacity: 1; transform: translateY(0);
}
/* Stagger children */
.fade-up:nth-child(2) { transition-delay: 0.08s; }
.fade-up:nth-child(3) { transition-delay: 0.16s; }
.fade-up:nth-child(4) { transition-delay: 0.24s; }
.fade-up:nth-child(5) { transition-delay: 0.32s; }
.fade-up:nth-child(6) { transition-delay: 0.40s; }

/* Skeleton loading shimmer */
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}
.skeleton {
  background: linear-gradient(90deg, var(--bg-card) 25%, var(--bg-card-hover) 50%, var(--bg-card) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s ease infinite;
  border-radius: var(--radius-xs);
}

/* Spinner */
@keyframes spin { to { transform: rotate(360deg); } }
.z-spinner {
  width: 20px; height: 20px;
  border: 2px solid rgba(255,255,255,0.2);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  display: inline-block;
  vertical-align: middle;
}

/* Coming soon overlay */
.z-coming-soon {
  position: relative;
}
.z-coming-soon::after {
  content: 'COMING SOON';
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  background: rgba(19,17,28,0.6);
  backdrop-filter: blur(2px);
  border-radius: var(--radius);
  font-size: 13px; font-weight: 700;
  letter-spacing: 0.1em; color: var(--text-dim);
}


/* — RESPONSIVE — */
@media (max-width: 768px) {
  .z-nav {
    padding: 0 16px;
  }
  .z-nav-links { display: none; }
  .z-nav-toggle { display: flex; }

  .z-hero h1 { font-size: clamp(32px, 8vw, 48px); }
  .z-hero-sub { font-size: 16px; }

  .z-section { padding: 64px 20px; }

  .z-stats { gap: 24px; flex-wrap: wrap; }
  .z-stat-number { font-size: 28px; }

  .z-grid-2, .z-grid-3, .z-grid-4 { grid-template-columns: 1fr; }

  .z-pricing-grid { grid-template-columns: 1fr; max-width: 420px; }

  .z-footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }

  .z-form-row { grid-template-columns: 1fr; }

  .z-footer-bottom { flex-direction: column; gap: 16px; text-align: center; }
}

@media (max-width: 480px) {
  .z-hero h1 { font-size: 30px; }
  .z-hero-actions { flex-direction: column; width: 100%; align-items: center; }
  .z-hero-actions .btn { width: 100%; justify-content: center; }

  .z-footer-grid { grid-template-columns: 1fr; }

  .z-cta { padding: 64px 20px; }
  .z-cta h2 { font-size: 24px; }
}

/* — UTILITY — */
.gr {
  background: var(--gradient);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.text-center { text-align: center; }
.text-dim { color: var(--text-dim); }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mb-32 { margin-bottom: 32px; }
.mb-48 { margin-bottom: 48px; }
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); border: 0;
}

/* — PRODUCT: APEX FRAMEWORK — */
.apex-hero { padding: 120px 20px 80px; text-align: center; background: radial-gradient(circle at top, rgba(124, 58, 237, 0.15), transparent 70%); }
.apex-badge { display: inline-block; padding: 6px 16px; border-radius: 50px; background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1); font-size: 14px; font-weight: 500; margin-bottom: 24px; color: var(--accent); }
.apex-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 40px; max-width: 1200px; margin: 80px auto; padding: 0 20px; }
.apex-feature { padding: 30px; background: rgba(255,255,255,0.02); border: 1px solid rgba(255,255,255,0.05); border-radius: 16px; }
.apex-feature h3 { font-family: var(--font-display); font-size: 20px; margin-bottom: 12px; color: #fff; }
.apex-feature p { font-size: 15px; line-height: 1.6; color: var(--text-dim); }
.code-block { background: #000; padding: 20px; border-radius: 8px; border: 1px solid rgba(255,255,255,0.1); font-family: var(--font-mono); font-size: 13px; color: #0f0; overflow-x: auto; margin: 40px auto; max-width: 800px; text-align: left; }

/* — PRODUCT: WEIGHTS EXTRACTION — */
.w-hero { padding: 120px 20px 80px; text-align: center; background: radial-gradient(circle at top, rgba(244, 114, 182, 0.15), transparent 70%); }
.w-badge { display: inline-block; padding: 6px 16px; border-radius: 50px; background: rgba(244, 114, 182, 0.1); border: 1px solid rgba(244, 114, 182, 0.2); font-size: 14px; font-weight: 600; margin-bottom: 24px; color: #f472b6; }
.w-visual { margin: 60px auto; max-width: 900px; border: 1px solid var(--border); border-radius: 12px; overflow: hidden; position: relative; background: #000; box-shadow: 0 20px 80px rgba(0,0,0,0.5); }
.w-visual-header { padding: 12px 20px; background: rgba(255,255,255,0.03); border-bottom: 1px solid var(--border); display: flex; align-items: center; gap: 10px; }
.w-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; max-width: 1200px; margin: 80px auto; padding: 0 20px; }
.w-feat { background: rgba(255,255,255,0.02); padding: 32px; border-radius: 16px; border: 1px solid var(--border); }
.w-feat h3 { font-family: var(--font-display); font-size: 20px; margin-bottom: 12px; color: #fff; }
.w-feat p { color: var(--text-secondary); font-size: 15px; line-height: 1.6; }
.terminal-window { font-family: var(--font-mono); padding: 20px; text-align: left; color: #a6accd; font-size: 14px; line-height: 1.5; }
.cmd { color: #fff; } .prm { color: #f472b6; } .out { color: #69f0ae; }