/* ============================================================
   ELETROMUV — Base / Reset / Utilities
   Cross-platform: iOS Safari, Android Chrome, Desktop
   ============================================================ */

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

html {
  scroll-behavior: smooth;
  /* Prevent iOS Safari text-size-adjust on orientation change */
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text-primary);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  /* iOS safe area for viewport edges */
  padding:
    var(--safe-top)
    var(--safe-right)
    0
    var(--safe-left);
}

/* ── Scrollbar (desktop only) ────────────────────────────── */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: #111; }
::-webkit-scrollbar-thumb { background: var(--border-default); border-radius: 3px; }

::selection {
  background: var(--orange);
  color: var(--text-primary);
}

/* ── Utilities ───────────────────────────────────────────── */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--section-pad-x);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ── Orb primitive ───────────────────────────────────────── */
.orb {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  background: radial-gradient(circle, var(--orb-color-hero) 0%, transparent 70%);
}

/* ── Scroll-reveal animation ─────────────────────────────── */
.af {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .7s ease, transform .7s ease;
}

.af.vis {
  opacity: 1;
  transform: translateY(0);
}

.d1 { transition-delay: .1s; }
.d2 { transition-delay: .2s; }
.d3 { transition-delay: .3s; }
.d4 { transition-delay: .4s; }

/* ── Reduce motion for a11y ──────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .af { opacity: 1; transform: none; }
}

/* ── Shared keyframes ────────────────────────────────────── */
@keyframes bdot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .4; transform: scale(0.7); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-14px); }
}

/* ── Global touch-action for mobile ──────────────────────── */
a, button {
  -webkit-tap-highlight-color: transparent;
}