/* ============================================
   NEXUS AI STUDIO — LIGHT THEME REDESIGN
   ============================================ */

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

:root {
  --bg:         #ffffff;
  --bg-soft:    #f9fafb;
  --card-bg:    #ffffff;
  --surface:    #f3f4f6;
  --border:     #e5e7eb;
  --border-strong: #d1d5db;

  --text:       #111827;
  --text-soft:  #374151;
  --muted:      #6b7280;
  --muted-2:    #9ca3af;

  --accent:     #7c3aed;
  --accent-2:   #6d28d9;
  --accent-soft:#ede9fe;
  --accent-ring: rgba(124,58,237,0.18);

  --success:    #059669;
  --warning:    #d97706;
  --info:       #0891b2;

  --shadow-sm:  0 1px 2px rgba(17,24,39,0.04);
  --shadow:     0 1px 3px rgba(17,24,39,0.06), 0 1px 2px rgba(17,24,39,0.04);
  --shadow-md:  0 4px 12px rgba(17,24,39,0.06), 0 2px 4px rgba(17,24,39,0.04);
  --shadow-lg:  0 12px 32px rgba(17,24,39,0.08), 0 4px 8px rgba(17,24,39,0.04);
  --shadow-accent: 0 8px 24px rgba(124,58,237,0.25);

  --radius-sm:  8px;
  --radius:     12px;
  --radius-lg:  16px;
  --radius-xl:  20px;

  --font: 'Inter', 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

html { scroll-behavior: smooth; }

/* ── SCROLL REVEAL ─────────────────────────
   Elements with [data-reveal] start hidden,
   slide up + fade in when they enter view. */
[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity .7s cubic-bezier(.22,.61,.36,1),
    transform .7s cubic-bezier(.22,.61,.36,1);
  will-change: opacity, transform;
}
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}
/* Variants */
[data-reveal="left"]      { transform: translateX(-32px); }
[data-reveal="right"]     { transform: translateX(32px); }
[data-reveal="left"].is-visible,
[data-reveal="right"].is-visible { transform: translateX(0); }
[data-reveal="scale"]     { transform: scale(.94); }
[data-reveal="scale"].is-visible { transform: scale(1); }

/* Staggered children — set --i on each child (0,1,2…) */
[data-reveal-stagger] > * {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity .65s cubic-bezier(.22,.61,.36,1),
    transform .65s cubic-bezier(.22,.61,.36,1);
  transition-delay: calc(var(--i, 0) * 70ms);
}
[data-reveal-stagger].is-visible > * {
  opacity: 1;
  transform: translateY(0);
}

/* Nav shadow on scroll */
nav.is-scrolled {
  box-shadow: 0 4px 20px rgba(17,24,39,0.06);
  background: rgba(255,255,255,0.95);
}

/* Hero parallax-ish drift on the grid */
.hero-grid {
  transition: transform .1s linear;
}

/* Float-in on stat numbers */
.stat-num {
  display: inline-block;
}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  [data-reveal],
  [data-reveal-stagger] > * {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}