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

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  font-family: var(--ab-font-sans);
  background-color: var(--ab-brand-primary);
  color: #0f172a;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

button {
  font-family: inherit;
  border: none;
  background: none;
  cursor: pointer;
}

input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

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

/* Accessibility */
.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;
}

/* Glass panel container utility */
.glass-panel {
  background: var(--ab-glass-bg);
  backdrop-filter: var(--ab-glass-blur);
  -webkit-backdrop-filter: var(--ab-glass-blur);
  border: 1px solid var(--ab-glass-border);
  box-shadow: var(--ab-glass-shadow);
}

.glass-panel-dark {
  background: var(--ab-dark-glass-bg);
  backdrop-filter: var(--ab-dark-glass-blur);
  -webkit-backdrop-filter: var(--ab-dark-glass-blur);
  border: 1px solid var(--ab-dark-glass-border);
  color: #ffffff;
}

/* Custom Scrollbar for Glass Panels */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.05);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb {
  background: rgba(15, 23, 42, 0.25);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(15, 23, 42, 0.4);
}