/* ==========================================================================
   VoltVisor — Base Styles
   CSS reset, typography, body, scrollbar, animation keyframes.
   Import AFTER variables.css.
   ========================================================================== */

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

/* ---- Root & Body ---- */
html {
  font-size: 14px;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ---- Typography Helpers ---- */
.mono {
  font-family: var(--font-mono);
}

a {
  color: inherit;
  text-decoration: none;
}

/* ---- Scrollbar ---- */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--border-light);
}

/* Firefox scrollbar */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

/* ---- Animation Keyframes ---- */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.5; }
}

@keyframes blink {
  0%, 50%  { opacity: 1; }
  51%, 100% { opacity: 0; }
}

@keyframes shimmer {
  0%   { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

/* ---- Animation Utility Classes ---- */
.animate-in {
  animation: fadeIn 0.4s ease forwards;
}

.delay-1 { animation-delay: 0.05s; opacity: 0; }
.delay-2 { animation-delay: 0.10s; opacity: 0; }
.delay-3 { animation-delay: 0.15s; opacity: 0; }
.delay-4 { animation-delay: 0.20s; opacity: 0; }
.delay-5 { animation-delay: 0.25s; opacity: 0; }

.pulse {
  animation: pulse 2s infinite;
}

/* ---- Visibility Helpers ---- */
.hidden {
  display: none !important;
}

.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;
}