/* ═══════════════════════════════════════════════════════════════
   MedQuestoes Design System v2.0
   Teal/Medical theme, sidebar layout, desktop-first responsive
   ═══════════════════════════════════════════════════════════════ */

/* ── DESIGN TOKENS ── */
:root {
  /* Primary Palette - Medical Teal */
  --mq-primary: #0d9488;
  --mq-primary-hover: #0f766e;
  --mq-primary-light: #ccfbf1;
  --mq-primary-soft: rgba(13, 148, 136, 0.08);
  --mq-primary-medium: rgba(13, 148, 136, 0.15);

  /* Surfaces */
  --mq-bg: #f7f8fa;
  --mq-surface: #ffffff;
  --mq-surface-2: #f1f5f9;
  --mq-surface-hover: #f8fafb;

  /* Text */
  --mq-text: #1e293b;
  --mq-text-secondary: #64748b;
  --mq-text-tertiary: #94a3b8;

  /* Borders */
  --mq-border: #e2e8f0;
  --mq-border-light: #f1f5f9;

  /* Status Colors */
  --mq-success: #10b981;
  --mq-success-light: #d1fae5;
  --mq-error: #ef4444;
  --mq-error-light: #fee2e2;
  --mq-warning: #f59e0b;
  --mq-warning-light: #fef3c7;
  --mq-info: #3b82f6;
  --mq-info-light: #dbeafe;

  /* Shadows */
  --mq-shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
  --mq-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
  --mq-shadow-md: 0 4px 12px rgba(0, 0, 0, 0.06);
  --mq-shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.08);

  /* Radii */
  --mq-radius-sm: 6px;
  --mq-radius-md: 8px;
  --mq-radius-lg: 12px;
  --mq-radius-xl: 16px;

  /* Spacing */
  --mq-space-xs: 4px;
  --mq-space-sm: 8px;
  --mq-space-md: 16px;
  --mq-space-lg: 24px;
  --mq-space-xl: 32px;
  --mq-space-2xl: 48px;

  /* Sidebar */
  --mq-sidebar-width: 72px;
  --mq-sidebar-expanded: 220px;
  --mq-sidebar-bg: #0f172a;
  --mq-sidebar-text: #94a3b8;
  --mq-sidebar-active: var(--mq-primary);
  --mq-sidebar-hover: rgba(255, 255, 255, 0.06);

  /* Topbar */
  --mq-topbar-height: 60px;

  /* Transitions */
  --mq-transition: 0.2s ease;
  --mq-transition-fast: 0.12s ease;

  /* Legacy compatibility aliases */
  --bg-body: var(--mq-bg);
  --bg: var(--mq-bg);
  --bg-dark: var(--mq-bg);
  --panel: var(--mq-surface);
  --panel-2: var(--mq-surface-2);
  --card-bg: var(--mq-surface);
  --bg-card: var(--mq-surface);
  --bg-hover: var(--mq-surface-hover);
  --text-main: var(--mq-text);
  --text: var(--mq-text);
  --muted: var(--mq-text-secondary);
  --text-muted: var(--mq-text-secondary);
  --accent: var(--mq-primary);
  --accent-hover: var(--mq-primary-hover);
  --accent-light: var(--mq-primary);
  --accent-2: var(--mq-primary);
  --border: var(--mq-border);
  --shadow: var(--mq-shadow-md);
  --header-bg: rgba(255, 255, 255, 0.92);
  --correct: var(--mq-success);
  --incorrect: var(--mq-error);
  --danger: var(--mq-error);
  --warn: var(--mq-warning);
  --ok: var(--mq-success);
  --blue: var(--mq-info);
  --accent-soft: var(--mq-primary-soft);
  --new: #60a5fa;
  --learning: #f87171;
  --review: #fbbf24;

  /* EMED compat */
  --emed-bg: var(--mq-bg);
  --emed-panel: var(--mq-surface);
  --emed-panel-soft: var(--mq-surface-2);
  --emed-text: var(--mq-text);
  --emed-muted: var(--mq-text-secondary);
  --emed-border: var(--mq-border);
  --emed-primary: var(--mq-primary);
  --emed-primary-dark: var(--mq-primary-hover);
  --emed-shadow: var(--mq-shadow-md);
}

/* ── DARK THEME ── */
body:not(.light-theme),
body.dark-theme,
body.dark {
  --mq-primary: #2dd4bf;
  --mq-primary-hover: #5eead4;
  --mq-primary-light: rgba(45, 212, 191, 0.12);
  --mq-primary-soft: rgba(45, 212, 191, 0.08);
  --mq-primary-medium: rgba(45, 212, 191, 0.15);
  --mq-bg: #0c1222;
  --mq-surface: #1a2332;
  --mq-surface-2: #0f1a2a;
  --mq-surface-hover: #1e2d3e;
  --mq-text: #e2e8f0;
  --mq-text-secondary: #94a3b8;
  --mq-text-tertiary: #64748b;
  --mq-border: #1e3048;
  --mq-border-light: #162338;
  --mq-shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.2);
  --mq-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --mq-shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
  --mq-shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.4);
  --mq-sidebar-bg: #0a0f1a;
  --mq-sidebar-text: #64748b;
  --mq-sidebar-hover: rgba(255, 255, 255, 0.04);
  --mq-success: #34d399;
  --mq-success-light: rgba(52, 211, 153, 0.15);
  --mq-error: #f87171;
  --mq-error-light: rgba(248, 113, 113, 0.15);
  --mq-warning: #fbbf24;
  --mq-warning-light: rgba(251, 191, 36, 0.15);
  --mq-info: #60a5fa;
  --mq-info-light: rgba(96, 165, 250, 0.15);
  --header-bg: rgba(26, 35, 50, 0.92);
}

/* ── BASE RESETS ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { background: var(--mq-bg); }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--mq-bg);
  color: var(--mq-text);
  line-height: 1.5;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ── SIDEBAR ── */
.mq-sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--mq-sidebar-width);
  background: var(--mq-sidebar-bg);
  display: flex;
  flex-direction: column;
  z-index: 200;
  transition: width var(--mq-transition);
  overflow: hidden;
}
.mq-sidebar-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 64px;
  padding: 0 16px;
  flex-shrink: 0;
}
.mq-sidebar-brand .brand-icon {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  background: var(--mq-primary);
  border-radius: var(--mq-radius-md);
  color: #fff;
  font-weight: 800;
  font-size: 1rem;
  letter-spacing: -0.02em;
  flex-shrink: 0;
}
.mq-sidebar-brand .brand-text {
  display: none;
  margin-left: 12px;
  color: #fff;
  font-size: 1.05rem;
  font-weight: 700;
  white-space: nowrap;
}
.mq-sidebar-nav {
  flex: 1;
  padding: 8px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  overflow-y: auto;
}
.mq-sidebar-link {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  width: 48px;
  margin: 0 auto;
  border-radius: var(--mq-radius-md);
  color: var(--mq-sidebar-text);
  text-decoration: none;
  transition: all var(--mq-transition);
  cursor: pointer;
  border: none;
  background: transparent;
  font-size: inherit;
}
.mq-sidebar-link svg {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.mq-sidebar-link .link-label {
  display: none;
  margin-left: 12px;
  font-size: 0.88rem;
  font-weight: 600;
  white-space: nowrap;
}
.mq-sidebar-link:hover {
  background: var(--mq-sidebar-hover);
  color: #e2e8f0;
}
.mq-sidebar-link.active {
  background: var(--mq-primary);
  color: #fff;
}
.mq-sidebar-link[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  left: calc(100% + 10px);
  top: 50%;
  transform: translateY(-50%);
  padding: 6px 10px;
  background: #1e293b;
  color: #f1f5f9;
  font-size: 0.78rem;
  font-weight: 600;
  border-radius: var(--mq-radius-sm);
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--mq-transition-fast);
  z-index: 300;
}
.mq-sidebar-link:hover[data-tooltip]::after {
  opacity: 1;
}
.mq-sidebar-link.active[data-tooltip]::after {
  background: var(--mq-primary-hover);
}
.mq-sidebar-footer {
  padding: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  justify-content: center;
}
.mq-sidebar-footer .theme-toggle {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: var(--mq-radius-md);
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: transparent;
  color: var(--mq-sidebar-text);
  cursor: pointer;
  font-size: 1.1rem;
  transition: all var(--mq-transition);
}
.mq-sidebar-footer .theme-toggle:hover {
  background: var(--mq-sidebar-hover);
  color: #e2e8f0;
}

/* ── TOPBAR ── */
.mq-topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--mq-topbar-height);
  margin-left: var(--mq-sidebar-width);
  background: var(--header-bg);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--mq-border);
  display: flex;
  align-items: center;
  padding: 0 var(--mq-space-lg);
  gap: var(--mq-space-md);
  transition: margin-left var(--mq-transition);
}
.mq-topbar-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--mq-text);
  flex-shrink: 0;
}
.mq-topbar-spacer { flex: 1; }
.mq-topbar-search {
  max-width: 320px;
  flex: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  height: 38px;
  padding: 0 12px;
  background: var(--mq-surface-2);
  border: 1px solid var(--mq-border);
  border-radius: var(--mq-radius-md);
  transition: border-color var(--mq-transition);
}
.mq-topbar-search:focus-within {
  border-color: var(--mq-primary);
}
.mq-topbar-search svg {
  width: 16px;
  height: 16px;
  color: var(--mq-text-tertiary);
  flex-shrink: 0;
}
.mq-topbar-search input {
  flex: 1;
  border: none;
  background: transparent;
  color: var(--mq-text);
  font-size: 0.88rem;
  outline: none;
  min-width: 0;
}
.mq-topbar-search input::placeholder { color: var(--mq-text-tertiary); }
.mq-topbar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}
.mq-topbar-btn {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: var(--mq-radius-md);
  border: 1px solid var(--mq-border);
  background: var(--mq-surface);
  color: var(--mq-text-secondary);
  cursor: pointer;
  transition: all var(--mq-transition);
}
.mq-topbar-btn:hover {
  border-color: var(--mq-primary);
  color: var(--mq-primary);
}
.mq-topbar-btn svg {
  width: 18px;
  height: 18px;
}
.mq-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--mq-primary), #06b6d4);
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 700;
  font-size: 0.82rem;
  cursor: pointer;
}

/* ── MAIN CONTENT ── */
.mq-main {
  margin-left: var(--mq-sidebar-width);
  min-height: calc(100vh - var(--mq-topbar-height));
  padding: var(--mq-space-lg);
  transition: margin-left var(--mq-transition);
}
.mq-container {
  max-width: 1320px;
  margin: 0 auto;
}

/* ── CARDS / PANELS ── */
.mq-card {
  background: var(--mq-surface);
  border: 1px solid var(--mq-border);
  border-radius: var(--mq-radius-lg);
  padding: var(--mq-space-lg);
  box-shadow: var(--mq-shadow-xs);
}
.mq-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: var(--mq-space-md);
}
.mq-card-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--mq-text);
}
.mq-card-subtitle {
  font-size: 0.84rem;
  color: var(--mq-text-secondary);
  margin-top: 2px;
}

/* ── BUTTONS ── */
.mq-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 40px;
  padding: 0 16px;
  border-radius: var(--mq-radius-md);
  font-size: 0.88rem;
  font-weight: 600;
  border: 1px solid var(--mq-border);
  background: var(--mq-surface);
  color: var(--mq-text);
  cursor: pointer;
  transition: all var(--mq-transition);
  text-decoration: none;
  white-space: nowrap;
  line-height: 1;
  font-family: inherit;
}
.mq-btn:hover {
  border-color: var(--mq-primary);
  color: var(--mq-primary);
}
.mq-btn:focus-visible {
  outline: 2px solid var(--mq-primary);
  outline-offset: 2px;
}
.mq-btn-primary {
  background: var(--mq-primary);
  color: #fff;
  border-color: var(--mq-primary);
}
.mq-btn-primary:hover {
  background: var(--mq-primary-hover);
  border-color: var(--mq-primary-hover);
  color: #fff;
}
.mq-btn-ghost {
  border-color: transparent;
  background: transparent;
}
.mq-btn-ghost:hover {
  background: var(--mq-primary-soft);
}
.mq-btn-danger {
  background: var(--mq-error);
  color: #fff;
  border-color: var(--mq-error);
}
.mq-btn-sm {
  height: 32px;
  padding: 0 10px;
  font-size: 0.8rem;
}
.mq-btn-lg {
  height: 48px;
  padding: 0 24px;
  font-size: 0.95rem;
  font-weight: 700;
}

/* ── BADGES / CHIPS / PILLS ── */
.mq-badge {
  display: inline-flex;
  align-items: center;
  height: 24px;
  padding: 0 8px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  background: var(--mq-surface-2);
  color: var(--mq-text-secondary);
  border: 1px solid var(--mq-border);
}
.mq-badge-primary { background: var(--mq-primary-soft); color: var(--mq-primary); border-color: transparent; }
.mq-badge-success { background: var(--mq-success-light); color: var(--mq-success); border-color: transparent; }
.mq-badge-error { background: var(--mq-error-light); color: var(--mq-error); border-color: transparent; }
.mq-badge-warning { background: var(--mq-warning-light); color: var(--mq-warning); border-color: transparent; }

.mq-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 30px;
  padding: 0 12px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  background: var(--mq-surface-2);
  color: var(--mq-text);
  border: 1px solid var(--mq-border);
}
.mq-chip-close {
  width: 16px;
  height: 16px;
  display: grid;
  place-items: center;
  border: none;
  background: none;
  color: var(--mq-text-tertiary);
  cursor: pointer;
  border-radius: 50%;
  font-size: 0.7rem;
}
.mq-chip-close:hover { background: var(--mq-error-light); color: var(--mq-error); }

/* ── INPUTS ── */
.mq-input,
.mq-select {
  height: 40px;
  padding: 0 12px;
  border: 1px solid var(--mq-border);
  border-radius: var(--mq-radius-md);
  background: var(--mq-surface);
  color: var(--mq-text);
  font-size: 0.88rem;
  font-family: inherit;
  transition: border-color var(--mq-transition);
  outline: none;
  width: 100%;
}
.mq-input:focus,
.mq-select:focus {
  border-color: var(--mq-primary);
  box-shadow: 0 0 0 3px var(--mq-primary-soft);
}
.mq-label {
  display: block;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--mq-text-secondary);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

/* ── TABS ── */
.mq-tabs {
  display: flex;
  gap: 2px;
  border-bottom: 1px solid var(--mq-border);
  overflow-x: auto;
}
.mq-tab {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 16px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--mq-text-secondary);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: all var(--mq-transition);
  white-space: nowrap;
  text-decoration: none;
}
.mq-tab:hover { color: var(--mq-text); }
.mq-tab.active {
  color: var(--mq-primary);
  border-bottom-color: var(--mq-primary);
}

/* ── TABLES ── */
.mq-table-wrap {
  border: 1px solid var(--mq-border);
  border-radius: var(--mq-radius-lg);
  overflow: hidden;
}
.mq-table {
  width: 100%;
  border-collapse: collapse;
}
.mq-table th {
  padding: 12px 16px;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--mq-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  text-align: left;
  background: var(--mq-surface-2);
  border-bottom: 1px solid var(--mq-border);
}
.mq-table td {
  padding: 12px 16px;
  font-size: 0.88rem;
  border-bottom: 1px solid var(--mq-border-light);
}
.mq-table tr:last-child td { border-bottom: none; }
.mq-table tr:hover td { background: var(--mq-surface-hover); }

/* ── PROGRESS BAR ── */
.mq-progress {
  height: 8px;
  background: var(--mq-surface-2);
  border-radius: 999px;
  overflow: hidden;
}
.mq-progress-fill {
  height: 100%;
  background: var(--mq-primary);
  border-radius: inherit;
  transition: width 0.5s ease;
}
.mq-progress-fill.success { background: var(--mq-success); }
.mq-progress-fill.error { background: var(--mq-error); }
.mq-progress-fill.warning { background: var(--mq-warning); }

/* ── MODAL ── */
.mq-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  z-index: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.mq-modal {
  width: min(560px, 100%);
  max-height: 90vh;
  overflow-y: auto;
  background: var(--mq-surface);
  border-radius: var(--mq-radius-xl);
  box-shadow: var(--mq-shadow-lg);
}
.mq-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--mq-border);
}
.mq-modal-title { font-size: 1.1rem; font-weight: 700; }
.mq-modal-close {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border: none;
  background: var(--mq-surface-2);
  border-radius: var(--mq-radius-sm);
  color: var(--mq-text-secondary);
  cursor: pointer;
  font-size: 1.1rem;
}
.mq-modal-close:hover { background: var(--mq-error-light); color: var(--mq-error); }
.mq-modal-body { padding: 24px; }
.mq-modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  padding: 16px 24px;
  border-top: 1px solid var(--mq-border);
}

/* ── PAGINATION ── */
.mq-pagination {
  display: flex;
  align-items: center;
  gap: 4px;
}
.mq-pagination button,
.mq-pagination a {
  display: inline-grid;
  place-items: center;
  min-width: 34px;
  height: 34px;
  padding: 0 8px;
  border: 1px solid var(--mq-border);
  border-radius: var(--mq-radius-sm);
  background: var(--mq-surface);
  color: var(--mq-text);
  font-size: 0.84rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--mq-transition);
}
.mq-pagination button:hover,
.mq-pagination a:hover,
.mq-pagination .active {
  background: var(--mq-primary);
  color: #fff;
  border-color: var(--mq-primary);
}

/* ── EMPTY STATE ── */
.mq-empty {
  padding: 40px 20px;
  text-align: center;
  color: var(--mq-text-secondary);
  border: 1px dashed var(--mq-border);
  border-radius: var(--mq-radius-lg);
}
.mq-empty svg { width: 48px; height: 48px; color: var(--mq-text-tertiary); margin-bottom: 12px; }
.mq-empty p { font-size: 0.92rem; margin-top: 4px; }

/* ── KPI METRIC CARDS ── */
.mq-kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--mq-space-md);
}
.mq-kpi {
  padding: 20px;
  background: var(--mq-surface);
  border: 1px solid var(--mq-border);
  border-radius: var(--mq-radius-lg);
  box-shadow: var(--mq-shadow-xs);
}
.mq-kpi-value {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--mq-primary);
  letter-spacing: -0.03em;
  line-height: 1.2;
}
.mq-kpi-label {
  font-size: 0.82rem;
  color: var(--mq-text-secondary);
  margin-top: 4px;
}
.mq-kpi-icon {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: var(--mq-radius-md);
  background: var(--mq-primary-soft);
  color: var(--mq-primary);
  margin-bottom: 12px;
}
.mq-kpi-icon svg { width: 20px; height: 20px; }

/* ── SECTION HEADINGS ── */
.mq-section {
  margin-bottom: var(--mq-space-lg);
}
.mq-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: var(--mq-space-md);
}
.mq-section-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--mq-text);
}

/* ── LEGACY HEADER / NAV OVERRIDES ── */
/* Hide old-style headers when sidebar is present */
body:has(.mq-sidebar) > header,
body:has(.mq-sidebar) > .app-nav {
  display: none !important;
}
body:has(.mq-sidebar) main {
  margin-left: var(--mq-sidebar-width);
  padding: var(--mq-space-lg);
  max-width: none;
  width: auto;
}

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .mq-kpi-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 768px) {
  :root {
    --mq-sidebar-width: 0px;
  }
  .mq-sidebar {
    width: 260px;
    transform: translateX(-100%);
  }
  .mq-sidebar.open {
    transform: translateX(0);
    box-shadow: 4px 0 20px rgba(0, 0, 0, 0.3);
  }
  .mq-topbar { margin-left: 0; }
  .mq-main { margin-left: 0; padding: var(--mq-space-md); }
  body:has(.mq-sidebar) main { margin-left: 0; }
  .mq-sidebar-brand .brand-text { display: block; }
  .mq-sidebar-link {
    width: 100%;
    justify-content: flex-start;
    padding: 0 16px;
  }
  .mq-sidebar-link .link-label { display: block; }
  .mq-sidebar-link[data-tooltip]::after { display: none; }
  .mq-mobile-toggle {
    display: flex !important;
  }
}
@media (max-width: 640px) {
  .mq-kpi-grid { grid-template-columns: 1fr; }
  .mq-card { padding: var(--mq-space-md); }
  .mq-topbar { padding: 0 var(--mq-space-md); }
}

/* Mobile sidebar toggle (hidden on desktop) */
.mq-mobile-toggle {
  display: none;
  width: 38px;
  height: 38px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--mq-border);
  border-radius: var(--mq-radius-md);
  background: var(--mq-surface);
  color: var(--mq-text);
  cursor: pointer;
}
.mq-mobile-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 199;
}
.mq-mobile-overlay.open { display: block; }

/* ── UTILITY CLASSES ── */
.mq-text-primary { color: var(--mq-primary); }
.mq-text-muted { color: var(--mq-text-secondary); }
.mq-text-success { color: var(--mq-success); }
.mq-text-error { color: var(--mq-error); }
.mq-text-warning { color: var(--mq-warning); }
.mq-font-mono { font-family: 'JetBrains Mono', monospace; }
.mq-truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.mq-sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); border: 0; }
.mq-flex { display: flex; }
.mq-grid { display: grid; }
.mq-gap-sm { gap: var(--mq-space-sm); }
.mq-gap-md { gap: var(--mq-space-md); }
.mq-gap-lg { gap: var(--mq-space-lg); }

/* ── ACCESSIBILITY ── */
:focus-visible {
  outline: 2px solid var(--mq-primary);
  outline-offset: 2px;
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--mq-border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--mq-text-tertiary); }