/* ==========================================================================
   MonoHelper Engine - Lightweight Multi-Theme SPA Styles
   Optimized for < 100KB footprint, 0 MB VM runtime overhead
   ========================================================================== */

/* --- 1. THEME DEFINITIONS (CSS CUSTOM PROPERTIES) --- */

:root,
[data-theme="modern-slate"] {
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --bg-app: #f8fafc;
  --bg-surface: #ffffff;
  --bg-card: #ffffff;
  --bg-card-hover: #f8fafc;
  --bg-muted: #f1f5f9;
  --bg-input: #ffffff;
  
  --border-color: #e2e8f0;
  --border-focus: #6366f1;
  --border-highlight: #cbd5e1;

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --text-inverse: #ffffff;

  --accent-primary: #6366f1;
  --accent-primary-hover: #4f46e5;
  --accent-light: #e0e7ff;
  --accent-text: #4338ca;

  --success: #10b981;
  --success-light: #d1fae5;
  --success-text: #065f46;

  --warning: #f59e0b;
  --warning-light: #fef3c7;
  --warning-text: #92400e;

  --danger: #ef4444;
  --danger-light: #fee2e2;
  --danger-text: #991b1b;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  --chart-grid: #e2e8f0;
  --chart-color-1: #6366f1;
  --chart-color-2: #10b981;
  --chart-color-3: #f59e0b;
  --chart-color-4: #ec4899;
  --chart-color-5: #06b6d4;
}

/* Theme 2: Cyber Emerald (Dark Fintech Terminal) */
[data-theme="cyber-emerald"] {
  --bg-app: #090d16;
  --bg-surface: #0f172a;
  --bg-card: #111827;
  --bg-card-hover: #1e293b;
  --bg-muted: #1e293b;
  --bg-input: #090d16;

  --border-color: #1e293b;
  --border-focus: #10b981;
  --border-highlight: #334155;

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-inverse: #090d16;

  --accent-primary: #10b981;
  --accent-primary-hover: #059669;
  --accent-light: rgba(16, 185, 129, 0.15);
  --accent-text: #34d399;

  --success: #10b981;
  --success-light: rgba(16, 185, 129, 0.2);
  --success-text: #6ee7b7;

  --warning: #fbbf24;
  --warning-light: rgba(251, 191, 36, 0.2);
  --warning-text: #fde68a;

  --danger: #f87171;
  --danger-light: rgba(248, 113, 113, 0.2);
  --danger-text: #fca5a5;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.5);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.6);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.7);

  --chart-grid: #1e293b;
  --chart-color-1: #10b981;
  --chart-color-2: #38bdf8;
  --chart-color-3: #a855f7;
  --chart-color-4: #f43f5e;
  --chart-color-5: #fbbf24;
}

/* Theme 3: Aurora Glassmorphism */
[data-theme="aurora-glass"] {
  --bg-app: #0f172a;
  background-image: radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.25) 0px, transparent 50%),
                    radial-gradient(at 100% 0%, rgba(236, 72, 153, 0.25) 0px, transparent 50%),
                    radial-gradient(at 50% 100%, rgba(6, 182, 212, 0.25) 0px, transparent 50%);
  --bg-surface: rgba(30, 41, 59, 0.7);
  --bg-card: rgba(30, 41, 59, 0.6);
  --bg-card-hover: rgba(51, 65, 85, 0.65);
  --bg-muted: rgba(255, 255, 255, 0.08);
  --bg-input: rgba(15, 23, 42, 0.6);

  --border-color: rgba(255, 255, 255, 0.12);
  --border-focus: #a855f7;
  --border-highlight: rgba(255, 255, 255, 0.24);

  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --text-inverse: #0f172a;

  --accent-primary: #ec4899;
  --accent-primary-hover: #db2777;
  --accent-light: rgba(236, 72, 153, 0.2);
  --accent-text: #f472b6;

  --success: #34d399;
  --success-light: rgba(52, 211, 153, 0.2);
  --success-text: #6ee7b7;

  --warning: #fbbf24;
  --warning-light: rgba(251, 191, 36, 0.2);
  --warning-text: #fde68a;

  --danger: #f87171;
  --danger-light: rgba(248, 113, 113, 0.2);
  --danger-text: #fca5a5;

  --shadow-sm: 0 4px 12px 0 rgba(0, 0, 0, 0.25);
  --shadow-md: 0 8px 24px 0 rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 16px 36px 0 rgba(0, 0, 0, 0.45);

  --glass-blur: blur(14px);
  --chart-grid: rgba(255, 255, 255, 0.1);
  --chart-color-1: #ec4899;
  --chart-color-2: #8b5cf6;
  --chart-color-3: #06b6d4;
  --chart-color-4: #10b981;
  --chart-color-5: #f59e0b;
}

/* Theme 4: Swiss Royal (Corporate Financial) */
[data-theme="swiss-royal"] {
  --bg-app: #f1f5f9;
  --bg-surface: #ffffff;
  --bg-card: #ffffff;
  --bg-card-hover: #f8fafc;
  --bg-muted: #e2e8f0;
  --bg-input: #f8fafc;

  --border-color: #cbd5e1;
  --border-focus: #1d4ed8;
  --border-highlight: #94a3b8;

  --text-primary: #0b192c;
  --text-secondary: #334155;
  --text-muted: #64748b;
  --text-inverse: #ffffff;

  --accent-primary: #1d4ed8;
  --accent-primary-hover: #1e40af;
  --accent-light: #dbeafe;
  --accent-text: #1e3a8a;

  --success: #059669;
  --success-light: #d1fae5;
  --success-text: #064e3b;

  --warning: #d97706;
  --warning-light: #fef3c7;
  --warning-text: #78350f;

  --danger: #dc2626;
  --danger-light: #fee2e2;
  --danger-text: #7f1d1d;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.12);

  --chart-grid: #e2e8f0;
  --chart-color-1: #1d4ed8;
  --chart-color-2: #059669;
  --chart-color-3: #d97706;
  --chart-color-4: #4f46e5;
  --chart-color-5: #0284c7;
}

/* Theme 5: Monokai (Pro Code) */
[data-theme="monokai"] {
  --bg-app: #272822;
  --bg-surface: #1e1f1c;
  --bg-card: #2e2f28;
  --bg-card-hover: #3e3d32;
  --bg-muted: #383830;
  --bg-input: #1e1f1c;

  --border-color: #3e3d32;
  --border-focus: #a6e22e;
  --border-highlight: #75715e;

  --text-primary: #f8f8f2;
  --text-secondary: #cfcfc2;
  --text-muted: #75715e;
  --text-inverse: #272822;

  --accent-primary: #f92672;
  --accent-primary-hover: #e01b63;
  --accent-light: rgba(249, 38, 114, 0.18);
  --accent-text: #f92672;

  --success: #a6e22e;
  --success-light: rgba(166, 226, 46, 0.18);
  --success-text: #a6e22e;

  --warning: #fd971f;
  --warning-light: rgba(253, 151, 31, 0.18);
  --warning-text: #fd971f;

  --danger: #f92672;
  --danger-light: rgba(249, 38, 114, 0.2);
  --danger-text: #f92672;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.6);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.7);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.8);

  --chart-grid: #3e3d32;
  --chart-color-1: #f92672;
  --chart-color-2: #a6e22e;
  --chart-color-3: #fd971f;
  --chart-color-4: #66d9ef;
  --chart-color-5: #ae81ff;
}

/* Theme 6: Matrix Green (Phosphor Terminal) */
[data-theme="matrix-green"] {
  --font-family: ui-monospace, "SF Mono", "Cascadia Code", "Source Code Pro", Menlo, Consolas, "Courier New", monospace;
  --bg-app: #030804;
  --bg-surface: #071208;
  --bg-card: #0a180b;
  --bg-card-hover: #102612;
  --bg-muted: #0d200e;
  --bg-input: #040a05;

  --border-color: #163818;
  --border-focus: #00ff66;
  --border-highlight: #00ff66;

  --text-primary: #00ff66;
  --text-secondary: #00cc55;
  --text-muted: #227027;
  --text-inverse: #030804;

  --accent-primary: #00ff66;
  --accent-primary-hover: #00dd55;
  --accent-light: rgba(0, 255, 102, 0.12);
  --accent-text: #00ff66;

  --success: #00ff66;
  --success-light: rgba(0, 255, 102, 0.2);
  --success-text: #00ff66;

  --warning: #a3e635;
  --warning-light: rgba(163, 230, 53, 0.18);
  --warning-text: #bef264;

  --danger: #ef4444;
  --danger-light: rgba(239, 68, 68, 0.2);
  --danger-text: #fca5a5;

  --shadow-sm: 0 1px 2px rgba(0, 255, 102, 0.15);
  --shadow-md: 0 4px 10px rgba(0, 255, 102, 0.2);
  --shadow-lg: 0 10px 20px rgba(0, 255, 102, 0.25);

  --chart-grid: #163818;
  --chart-color-1: #00ff66;
  --chart-color-2: #00cc55;
  --chart-color-3: #a3e635;
  --chart-color-4: #059669;
  --chart-color-5: #38bdf8;
}

/* --- 2. GLOBAL RESET & BASE STYLES --- */

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-app);
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100vh;
  transition: background-color 0.25s ease, color 0.25s ease;
  overflow-x: hidden;
}

/* Glassmorphism utility */
[data-theme="aurora-glass"] .glass-panel {
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}

/* --- 3. LAYOUT STRUCTURE --- */

.app-wrapper {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: 260px;
  background-color: var(--bg-surface);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  z-index: 40;
  transition: background-color 0.25s ease, border-color 0.25s ease;
}

.brand-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--accent-primary), #8b5cf6);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.15rem;
  box-shadow: var(--shadow-sm);
}

.brand-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.brand-badge {
  font-size: 0.65rem;
  background-color: var(--accent-light);
  color: var(--accent-text);
  padding: 2px 6px;
  border-radius: var(--radius-full);
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.sidebar-nav {
  padding: 1rem 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  flex: 1;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 0.85rem;
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9rem;
  border-radius: var(--radius-sm);
  transition: all 0.15s ease;
  cursor: pointer;
}

.nav-link:hover {
  background-color: var(--bg-muted);
  color: var(--text-primary);
}

.nav-link.active {
  background-color: var(--accent-light);
  color: var(--accent-text);
  font-weight: 600;
}

.nav-link .icon {
  font-size: 1.1rem;
}

.sidebar-footer {
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--border-color);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.vm-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background-color: var(--bg-muted);
  color: var(--text-secondary);
  padding: 4px 8px;
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 600;
  border: 1px solid var(--border-color);
}

.status-dot-pulse {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--success);
  box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  animation: pulse-green 2s infinite;
}

@keyframes pulse-green {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

/* Main Content Area */
.main-wrapper {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

/* Top Navigation Bar */
.topbar {
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 30;
  transition: background-color 0.25s ease, border-color 0.25s ease;
}

.theme-switcher-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.theme-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.theme-pills {
  display: flex;
  background-color: var(--bg-muted);
  padding: 3px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  gap: 2px;
}

.theme-pill-btn {
  background: none;
  border: none;
  padding: 0.35rem 0.65rem;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s ease;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.theme-pill-btn:hover {
  color: var(--text-primary);
}

.theme-pill-btn.active {
  background-color: var(--bg-card);
  color: var(--accent-text);
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.user-profile-chip {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.6rem;
  border-radius: var(--radius-full);
  background-color: var(--bg-muted);
  border: 1px solid var(--border-color);
  cursor: pointer;
}

.user-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, #3b82f6, #9333ea);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
}

.user-name {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* Page Body */
.page-container {
  padding: 1.75rem 2rem 3rem 2rem;
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

/* --- 4. HIGHLIGHTED BLOCKS & CALLOUTS --- */

.alert-banner {
  background: linear-gradient(90deg, var(--accent-light), var(--bg-surface));
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--accent-primary);
  border-radius: var(--radius-md);
  padding: 0.9rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  box-shadow: var(--shadow-sm);
  transition: all 0.2s ease;
}

.alert-content {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.88rem;
  color: var(--text-primary);
}

.alert-icon {
  font-size: 1.25rem;
  color: var(--accent-primary);
}

.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-success {
  background-color: var(--success-light);
  color: var(--success-text);
}

.badge-warning {
  background-color: var(--warning-light);
  color: var(--warning-text);
}

.badge-danger {
  background-color: var(--danger-light);
  color: var(--danger-text);
}

.badge-accent {
  background-color: var(--accent-light);
  color: var(--accent-text);
}

/* Metric / KPI Cards Grid */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
}

.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.35rem;
  box-shadow: var(--shadow-sm);
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-highlight);
}

.card-highlight-accent {
  border-top: 3px solid var(--accent-primary);
}

.kpi-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.kpi-title {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.kpi-icon-wrap {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-md);
  background-color: var(--accent-light);
  color: var(--accent-text);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.kpi-value {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.03em;
  margin-bottom: 0.5rem;
}

.kpi-footer {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.kpi-trend-positive {
  color: var(--success);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 2px;
}

.kpi-trend-neutral {
  color: var(--text-secondary);
  font-weight: 600;
}

.progress-track {
  width: 100%;
  height: 6px;
  background-color: var(--bg-muted);
  border-radius: var(--radius-full);
  margin-top: 0.5rem;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-primary), var(--success));
  border-radius: var(--radius-full);
}

/* --- 5. CHARTS GRID --- */

.charts-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 1.25rem;
}

.chart-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.card-heading {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.chart-canvas-container {
  position: relative;
  width: 100%;
  height: 280px;
}

/* --- 6. CONTROLS: RADIO BUTTONS & DROPDOWNS --- */

.controls-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.controls-left,
.controls-right {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.85rem;
}

/* Segmented Control / Radio Buttons */
.radio-pill-group {
  display: inline-flex;
  background-color: var(--bg-muted);
  padding: 3px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.radio-pill-group input[type="radio"] {
  display: none;
}

.radio-pill-label {
  padding: 0.4rem 0.85rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
}

.radio-pill-group input[type="radio"]:checked + .radio-pill-label {
  background-color: var(--bg-card);
  color: var(--accent-text);
  box-shadow: var(--shadow-sm);
}

/* Dropdowns / Custom Selects */
.select-wrapper {
  position: relative;
  display: inline-block;
}

.custom-select {
  appearance: none;
  -webkit-appearance: none;
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.45rem 2.2rem 0.45rem 0.85rem;
  font-size: 0.84rem;
  font-weight: 500;
  color: var(--text-primary);
  cursor: pointer;
  outline: none;
  transition: all 0.15s ease;
  box-shadow: var(--shadow-sm);
}

.custom-select:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--accent-light);
}

.select-arrow {
  position: absolute;
  right: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
  color: var(--text-muted);
  font-size: 0.75rem;
}

/* --- 7. TABLES --- */

.table-card {
  padding: 0;
  overflow: hidden;
}

.table-header-bar {
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-color);
  gap: 1rem;
}

.table-search-input {
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.45rem 0.85rem;
  font-size: 0.84rem;
  color: var(--text-primary);
  outline: none;
  width: 240px;
  transition: all 0.15s ease;
}

.table-search-input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 2px var(--accent-light);
}

.table-container {
  width: 100%;
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.88rem;
}

.data-table th {
  background-color: var(--bg-muted);
  color: var(--text-secondary);
  font-weight: 600;
  padding: 0.75rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.data-table td {
  padding: 0.9rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-primary);
  white-space: nowrap;
  transition: background-color 0.15s ease;
}

.data-table tbody tr:hover td {
  background-color: var(--bg-card-hover);
}

.merchant-cell {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.merchant-avatar {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
  background-color: var(--bg-muted);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.merchant-name {
  font-weight: 600;
  color: var(--text-primary);
}

.merchant-subtitle {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.amount-positive {
  color: var(--success);
  font-weight: 700;
}

.amount-negative {
  color: var(--text-primary);
  font-weight: 700;
}

.table-pagination {
  padding: 0.85rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border-color);
  background-color: var(--bg-surface);
  font-size: 0.82rem;
  color: var(--text-secondary);
}

/* --- 8. FORMS & INPUT CONTROLS --- */

.forms-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.form-group {
  margin-bottom: 1.1rem;
}

.form-label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
}

.input-text,
.input-textarea {
  width: 100%;
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.55rem 0.85rem;
  font-size: 0.88rem;
  color: var(--text-primary);
  outline: none;
  transition: all 0.15s ease;
}

.input-text:focus,
.input-textarea:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--accent-light);
}

.input-amount-group {
  display: flex;
  gap: 0.5rem;
}

/* Card-style Radio Selector */
.card-radio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.65rem;
}

.card-radio-label {
  border: 1px solid var(--border-color);
  background-color: var(--bg-input);
  border-radius: var(--radius-md);
  padding: 0.75rem 0.65rem;
  cursor: pointer;
  text-align: center;
  transition: all 0.15s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
}

.card-radio-label:hover {
  background-color: var(--bg-muted);
}

input[type="radio"]:checked + .card-radio-label {
  border-color: var(--accent-primary);
  background-color: var(--accent-light);
  color: var(--accent-text);
  font-weight: 600;
}

.card-radio-title {
  font-size: 0.82rem;
  font-weight: 600;
}

.card-radio-desc {
  font-size: 0.68rem;
  color: var(--text-muted);
}

/* Toggle Switch */
.toggle-group {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--border-color);
}

.toggle-info-title {
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--text-primary);
}

.toggle-info-desc {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: var(--border-highlight);
  transition: .3s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 24px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: .3s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 50%;
  box-shadow: var(--shadow-sm);
}

input:checked + .slider {
  background-color: var(--accent-primary);
}

input:checked + .slider:before {
  transform: translateX(20px);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.6rem 1.15rem;
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-primary {
  background-color: var(--accent-primary);
  color: var(--text-inverse);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background-color: var(--accent-primary-hover);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background-color: var(--bg-muted);
  color: var(--text-primary);
  border-color: var(--border-color);
}

.btn-secondary:hover {
  background-color: var(--border-color);
}

/* Toast Notification simulation */
.toast-notice {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--success);
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  z-index: 100;
  font-size: 0.88rem;
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: none;
}

.toast-notice.show {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

/* --- 9. RESPONSIVE DESIGN --- */

@media (max-width: 1024px) {
  .charts-grid,
  .forms-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .app-wrapper {
    flex-direction: column;
  }
  .sidebar {
    width: 100%;
    height: auto;
    position: relative;
  }
  .topbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }
  .page-container {
    padding: 1rem;
  }
  .card-radio-grid {
    grid-template-columns: 1fr;
  }
}

/* --- 10. AUTH, LOGIN & ADMIN ENHANCEMENTS --- */

.auth-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: var(--bg-app);
  color: var(--text-primary);
  font-family: var(--font-stack);
  position: relative;
}

.auth-topbar {
  display: flex;
  justify-content: flex-end;
  padding: 1.25rem 2rem;
  z-index: 10;
}

.auth-container {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.auth-card {
  width: 100%;
  max-width: 440px;
  padding: 2.25rem 2rem;
  border-radius: var(--radius-lg);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.auth-header {
  text-align: center;
  margin-bottom: 1.75rem;
}

.auth-subtitle {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

.auth-tabs {
  display: flex;
  gap: 0.5rem;
  background-color: var(--bg-input);
  padding: 0.35rem;
  border-radius: var(--radius-md);
  margin-bottom: 1.5rem;
  border: 1px solid var(--border-color);
}

.auth-tab-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.6rem 0.75rem;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s ease;
}

.auth-tab-btn.active {
  background-color: var(--bg-surface);
  color: var(--accent);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

.auth-form {
  margin-bottom: 1rem;
}

.input-hint {
  font-size: 0.76rem;
  color: var(--text-secondary);
  margin-top: 0.35rem;
  line-height: 1.3;
}

.form-group-checkbox {
  margin: 1rem 0 0.5rem 0;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.84rem;
  color: var(--text-secondary);
  cursor: pointer;
}

.auth-footer {
  text-align: center;
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-color);
}

.link-subtle {
  font-size: 0.82rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s ease;
}

.link-subtle:hover {
  color: var(--accent);
}

/* Magic Link Result Component */
.magic-result-card {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem;
}

.magic-link-display {
  font-family: monospace;
  font-size: 0.78rem;
  word-break: break-all;
  padding: 0.75rem;
  background: rgba(0, 0, 0, 0.3);
  border-radius: var(--radius-sm);
  color: var(--accent);
  border: 1px solid var(--border-color);
  user-select: all;
}

/* Floating Toast Notification Stack */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  z-index: 9999;
  pointer-events: none;
}

.toast-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-md);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.3);
  font-size: 0.86rem;
  pointer-events: auto;
  animation: slide-up 0.25s ease forwards;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.toast-item.toast-fade {
  opacity: 0;
  transform: translateY(10px);
}

.toast-success {
  border-left: 4px solid var(--success);
}

.toast-error {
  border-left: 4px solid #ef4444;
}

.toast-info {
  border-left: 4px solid var(--accent);
}

@keyframes slide-up {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* Account card item */
.account-item-card {
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.account-item-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
}

.account-item-card.selected {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 1px var(--accent-primary), 0 8px 24px rgba(0, 0, 0, 0.25);
}