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

body {
  font-family: 'Inter', -apple-system, sans-serif;
  background: var(--bg-gradient);
  background-attachment: fixed;
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100vh;
}

a { color: var(--accent-primary-light); text-decoration: none; }

/* SR-only + Skip link */
.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; }
.sr-only.focus\:not-sr-only:focus { position: static; width: auto; height: auto; padding: 8px 16px; margin: 0; overflow: visible; clip: auto; white-space: normal; background: var(--accent-primary); color: #fff; border-radius: var(--radius-sm); z-index: 10000; }

/* Focus visible */
:focus-visible { outline: 2px solid var(--accent-primary); outline-offset: 2px; border-radius: 4px; }

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}
@media (prefers-reduced-transparency: reduce) {
  :root { --glass-bg: rgba(15, 15, 35, 0.95); --glass-border: rgba(255, 255, 255, 0.2); }
  [data-theme="light"] { --glass-bg: rgba(255, 255, 255, 0.95); --glass-border: rgba(0, 0, 0, 0.1); }
}

/* Tabular nums on data */
.kpi-value, .cwv-value, .gauge-value, .big-num, .variant-rate, [data-numeric] {
  font-variant-numeric: tabular-nums;
}

/* Aria live region */
.aria-live-region { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }

/* Animations */
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
@keyframes spin { to { transform: rotate(360deg); } }

/* Spinner */
.spinner-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity .3s;
}
.spinner-overlay.hidden { opacity: 0; pointer-events: none; }
.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--glass-border);
  border-top-color: var(--accent-primary);
  border-radius: 50%;
  animation: spin .8s linear infinite;
}

.spacer { height: 12px; }