/* ==========================================================================
   CA INTERMEDIATE GROUP 1 STUDY TRACKER - DESIGN SYSTEM & STYLES
   ========================================================================== */

:root {
  /* Color Tokens - Dark Mode (Default) */
  --bg-primary: #090D16;
  --bg-secondary: #0F172A;
  --bg-card: #141E33;
  --bg-card-hover: #1A2642;
  --bg-card-elevated: #1E2B4A;
  --border-color: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.16);

  --text-main: #F8FAFC;
  --text-muted: #94A3B8;
  --text-dim: #64748B;

  /* Subject Accent Colors */
  --accent-acc: #6366F1;     /* Advanced Accounting - Indigo */
  --accent-law: #10B981;     /* Corporate & Other Laws - Emerald */
  --accent-tax1: #F59E0B;    /* Taxation Batch 1 - Amber */
  --accent-tax2: #F43F5E;    /* Taxation Batch 2 - Rose */

  --accent-primary: #4F46E5;
  --accent-primary-hover: #4338CA;
  --accent-gradient: linear-gradient(135deg, #6366F1 0%, #8B5CF6 100%);
  --accent-glow: rgba(99, 102, 241, 0.25);

  --status-success: #10B981;
  --status-warning: #F59E0B;
  --status-danger: #EF4444;
  --status-info: #0EA5E9;

  /* Typography */
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Layout */
  --sidebar-width: 260px;
  --topbar-height: 64px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-card: 0 4px 20px -2px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 10px 30px -5px rgba(0, 0, 0, 0.45);
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
}

[data-theme="light"] {
  --bg-primary: #F8FAFC;
  --bg-secondary: #F1F5F9;
  --bg-card: #FFFFFF;
  --bg-card-hover: #F8FAFC;
  --bg-card-elevated: #F1F5F9;
  --border-color: #E2E8F0;
  --border-hover: #CBD5E1;

  --text-main: #0F172A;
  --text-muted: #64748B;
  --text-dim: #94A3B8;

  --accent-primary: #4F46E5;
  --accent-primary-hover: #4338CA;
  --accent-glow: rgba(99, 102, 241, 0.15);
  --shadow-card: 0 4px 16px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.08);
}

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

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

/* App Layout */
.app-layout {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.app-sidebar {
  width: var(--sidebar-width);
  background-color: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 100;
  transition: transform var(--transition-normal);
}

.sidebar-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  background: var(--accent-gradient);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 15px;
  letter-spacing: 0.5px;
  box-shadow: 0 4px 12px var(--accent-glow);
}

.brand-name {
  display: block;
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.2;
}

.brand-tag {
  display: block;
  font-size: 11px;
  font-weight: 600;
  color: var(--accent-acc);
  letter-spacing: 0.5px;
}

.sidebar-nav {
  padding: 20px 16px;
  flex: 1;
  overflow-y: auto;
}

.nav-section-title {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--text-dim);
  padding: 8px 12px;
  margin-bottom: 4px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  margin-bottom: 4px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  text-decoration: none;
  font-size: 13.5px;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.nav-item:hover {
  background-color: var(--bg-card);
  color: var(--text-main);
}

.nav-item.active {
  background-color: var(--accent-primary);
  color: #FFFFFF;
  font-weight: 600;
  box-shadow: 0 4px 12px var(--accent-glow);
}

.nav-icon {
  flex-shrink: 0;
}

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid var(--border-color);
}

.footer-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 12px 14px;
}

.footer-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.footer-card-body {
  font-size: 11px;
  color: var(--text-dim);
}

/* Main Area */
.app-main {
  margin-left: var(--sidebar-width);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background-color: var(--bg-primary);
}

/* Topbar */
.app-topbar {
  height: var(--topbar-height);
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 90;
  backdrop-filter: blur(8px);
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.academic-path-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
}

.dot-live {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--status-success);
  box-shadow: 0 0 8px var(--status-success);
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.topbar-timer-shortcut {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.topbar-timer-shortcut:hover {
  background: var(--accent-acc);
  color: white;
  border-color: var(--accent-acc);
}

.btn-theme-toggle {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 15px;
  transition: all var(--transition-fast);
}

.btn-theme-toggle:hover {
  border-color: var(--border-hover);
  transform: translateY(-1px);
}

[data-theme="dark"] .theme-icon-light { display: none; }
[data-theme="dark"] .theme-icon-dark { display: inline-block; }
[data-theme="light"] .theme-icon-dark { display: none; }
[data-theme="light"] .theme-icon-light { display: inline-block; }

.mobile-only {
  display: none;
}

/* Content Area */
.view-content-area {
  padding: 28px 32px 60px;
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
}

.view-container {
  display: none;
}

.view-container.active {
  display: block;
  animation: fadeIn 0.25s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Typography & Titles */
.view-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 16px;
}

.view-title {
  font-size: 24px;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.5px;
}

.view-subtitle {
  font-size: 13.5px;
  color: var(--text-muted);
  margin-top: 4px;
}

.section-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
}

.section-subtitle {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 2px;
}

.section-header-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 12px;
}

/* Cards */
.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-card);
  position: relative;
}

.card-heading {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-heading-sm {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 12px;
}

.card-header-flex {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 16px;
}

/* Top Countdown Banner */
.exam-banner-card {
  background: linear-gradient(135deg, #1E1B4B 0%, #172554 50%, #0F172A 100%);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: var(--radius-xl);
  padding: 28px 32px;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
  box-shadow: 0 8px 32px rgba(79, 70, 229, 0.15);
  position: relative;
  overflow: hidden;
}

.exam-banner-card::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.25) 0%, transparent 70%);
  pointer-events: none;
}

.banner-badge {
  display: inline-block;
  background: rgba(99, 102, 241, 0.25);
  border: 1px solid rgba(99, 102, 241, 0.4);
  color: #A5B4FC;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.banner-title {
  font-size: 22px;
  font-weight: 800;
  color: #FFFFFF;
  letter-spacing: -0.3px;
}

.banner-sub {
  font-size: 13.5px;
  color: #CBD5E1;
  margin-top: 4px;
}

.exam-countdown-box {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(15, 23, 42, 0.7);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 12px 20px;
  border-radius: var(--radius-lg);
}

.countdown-unit {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 48px;
}

.cd-num {
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 700;
  color: #FFFFFF;
  line-height: 1;
}

.cd-label {
  font-size: 10px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: 4px;
}

.countdown-sep {
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.3);
  margin-bottom: 12px;
}

/* Quick Actions Bar */
.quick-actions-bar {
  display: flex;
  gap: 12px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

/* Metrics Quad Grid (4 Key Pillars) */
.metrics-quad-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.metric-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

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

.metric-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.metric-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
}

.metric-big-val {
  font-size: 26px;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.5px;
  line-height: 1.1;
}

.metric-unit {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-muted);
}

.metric-sub-val {
  font-size: 12.5px;
  color: var(--text-dim);
  margin-top: 4px;
}

.progress-bar-wrap {
  width: 100%;
  height: 6px;
  background-color: var(--bg-secondary);
  border-radius: 999px;
  overflow: hidden;
  margin-top: 14px;
}

.progress-bar-fill {
  height: 100%;
  border-radius: 999px;
  transition: width 0.5s ease-out;
}

.metric-footer-note {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 10px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}

/* Subject Batch Cards Grid */
.subject-batch-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.batch-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.batch-card:hover {
  border-color: var(--card-accent, var(--accent-primary));
  transform: translateY(-3px);
  box-shadow: 0 8px 24px -4px rgba(0, 0, 0, 0.4);
}

.batch-card-top {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.batch-indicator-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  flex-shrink: 0;
}

.batch-title-area {
  flex: 1;
}

.batch-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.2;
}

.batch-code {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-dim);
}

.batch-pct-badge {
  font-size: 14px;
  font-weight: 800;
  color: var(--text-main);
}

.batch-stats-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
  padding: 12px;
}

.batch-stat-item {
  display: flex;
  flex-direction: column;
}

.batch-stat-item .label {
  font-size: 11px;
  color: var(--text-dim);
}

.batch-stat-item .val {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-main);
}

.batch-footer-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 12px;
}

.batch-card-link {
  font-size: 12px;
  font-weight: 600;
  color: var(--card-accent, var(--accent-primary));
}

/* Dashboard Split Grid */
.dashboard-split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

@media (max-width: 900px) {
  .dashboard-split-grid {
    grid-template-columns: 1fr;
  }
}

.dashboard-task-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 12px;
}

.task-row-mini {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--bg-secondary);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}

.task-row-mini:hover {
  background: var(--bg-card-hover);
}

.task-row-mini.completed {
  opacity: 0.6;
}

.task-info {
  flex: 1;
}

.task-title-line {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.task-title-text {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-main);
}

.task-title-text.strikethrough {
  text-decoration: line-through;
}

/* Velocity Stats Stack */
.velocity-stats-stack {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.velocity-item {
  background: var(--bg-secondary);
  padding: 14px;
  border-radius: var(--radius-sm);
}

.velocity-label-group {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 4px;
}

.velocity-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-main);
}

.velocity-val {
  font-size: 14px;
  font-weight: 700;
}

/* ==========================================================================
   SUBJECTS & LECTURES TRACKER
   ========================================================================== */

.subject-tabs-nav {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.subject-tab-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 8px 16px;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.subject-tab-btn:hover {
  border-color: var(--tab-color, var(--accent-primary));
  color: var(--text-main);
}

.subject-tab-btn.active {
  background: var(--bg-secondary);
  border-color: var(--tab-color, var(--accent-primary));
  color: var(--text-main);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.tab-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.tab-badge {
  font-size: 11px;
  background: var(--bg-secondary);
  padding: 2px 6px;
  border-radius: 999px;
  color: var(--text-muted);
}

.subject-header-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.subject-badge-pill {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  margin-bottom: 6px;
}

.subject-title-row {
  display: flex;
  align-items: center;
}

.subject-heading {
  font-size: 22px;
  font-weight: 800;
  color: var(--text-main);
}

.subject-desc {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 6px;
}

.speed-selector-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  min-width: 240px;
}

.speed-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  display: block;
  margin-bottom: 8px;
}

.speed-buttons {
  display: flex;
  gap: 6px;
  margin-bottom: 8px;
}

.btn-speed {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-speed:hover, .btn-speed.active {
  background: var(--accent-primary);
  color: white;
  border-color: var(--accent-primary);
}

.speed-hint {
  font-size: 11.5px;
  color: var(--text-muted);
  line-height: 1.4;
}

/* Table Toolbar */
.table-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 12px;
}

.toolbar-left {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.toolbar-right {
  display: flex;
  gap: 8px;
}

.search-box {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 6px 12px;
  color: var(--text-muted);
}

.input-search {
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-main);
  font-size: 13px;
  width: 200px;
}

.filter-pills {
  display: flex;
  background: var(--bg-secondary);
  padding: 2px;
  border-radius: var(--radius-sm);
}

.pill-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 6px 14px;
  font-size: 12px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  white-space: nowrap;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.pill-btn.active {
  background: var(--bg-card);
  color: var(--text-main);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
}

/* Data Table */
.table-responsive {
  width: 100%;
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  text-align: left;
}

.data-table th {
  background-color: var(--bg-secondary);
  color: var(--text-muted);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}

.data-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-main);
  vertical-align: middle;
}

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

.row-completed {
  background-color: rgba(16, 185, 129, 0.03);
}

.duration-badge {
  display: inline-block;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  font-size: 11.5px;
  font-family: var(--font-mono);
  font-weight: 600;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
}

.duration-badge.custom {
  color: var(--accent-acc);
  border-color: rgba(99, 102, 241, 0.3);
}

.status-select {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  font-size: 11.5px;
  font-weight: 600;
  outline: none;
  cursor: pointer;
}

.status-select.status-completed {
  color: var(--status-success);
  border-color: rgba(16, 185, 129, 0.3);
}

.status-select.status-in_progress {
  color: var(--status-warning);
  border-color: rgba(245, 158, 11, 0.3);
}

.notes-preview {
  display: inline-block;
  max-width: 200px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text-muted);
}

/* ==========================================================================
   STUDY TIMER & STOPWATCH
   ========================================================================== */

.timer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 24px;
}

@media (max-width: 950px) {
  .timer-grid {
    grid-template-columns: 1fr;
  }
}

.timer-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.timer-mode-tabs {
  display: flex;
  background: var(--bg-secondary);
  padding: 4px;
  border-radius: var(--radius-md);
  margin-bottom: 20px;
  gap: 4px;
}

.timer-tab {
  display: flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 8px 20px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.timer-tab.active {
  background: var(--bg-card);
  color: var(--text-main);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.pomodoro-config-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.pomodoro-config-bar.hidden {
  display: none;
}

.pomo-type-pill {
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
}

.pomo-type-pill.focus {
  background: rgba(99, 102, 241, 0.2);
  color: #818CF8;
}

.pomo-type-pill.break {
  background: rgba(16, 185, 129, 0.2);
  color: #34D399;
}

.pomo-inputs {
  display: flex;
  gap: 12px;
  font-size: 12px;
  color: var(--text-muted);
}

.input-mini {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  width: 50px;
  padding: 2px 6px;
  border-radius: 4px;
  font-family: var(--font-mono);
  text-align: center;
}

.clock-display-wrap {
  margin: 20px 0 28px;
}

.clock-ring {
  width: 240px;
  height: 240px;
  border-radius: 50%;
  border: 4px solid var(--border-color);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle, var(--bg-card-hover) 0%, var(--bg-card) 70%);
  box-shadow: inset 0 0 30px rgba(0, 0, 0, 0.3), 0 10px 30px rgba(0, 0, 0, 0.2);
  position: relative;
}

.clock-digits {
  font-family: var(--font-mono);
  font-size: 42px;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -1px;
}

.timer-status-badge {
  font-size: 11px;
  font-weight: 700;
  padding: 2px 10px;
  border-radius: 999px;
  margin-top: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.timer-status-badge.idle {
  background: var(--bg-secondary);
  color: var(--text-dim);
}

.timer-status-badge.running {
  background: rgba(16, 185, 129, 0.2);
  color: var(--status-success);
  animation: pulse 2s infinite;
}

.timer-status-badge.paused {
  background: rgba(245, 158, 11, 0.2);
  color: var(--status-warning);
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

.timer-controls {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.timer-context-form {
  width: 100%;
  text-align: left;
  border-top: 1px solid var(--border-color);
  padding-top: 20px;
}

.summary-metrics-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 16px 0;
}

.summary-metric-box {
  background: var(--bg-secondary);
  padding: 14px;
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
}

.summary-metric-box .label {
  font-size: 11px;
  color: var(--text-muted);
}

.summary-metric-box .value {
  font-size: 20px;
  font-weight: 800;
  margin: 2px 0;
}

.summary-metric-box .sub {
  font-size: 11px;
  color: var(--text-dim);
}

.sessions-scroll-list {
  max-height: 280px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.session-log-item {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--bg-secondary);
  padding: 10px 12px;
  border-radius: var(--radius-sm);
}

.session-badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.session-info {
  flex: 1;
  min-width: 0;
}

.session-title-line {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
}

.session-meta-line {
  font-size: 11px;
  color: var(--text-dim);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.session-duration {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--text-main);
  white-space: nowrap;
}

/* ==========================================================================
   DAILY STUDY PLANNER & TASKS
   ========================================================================== */

.date-navigation-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.date-picker-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  position: relative;
}

.input-date-custom {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 13px;
  outline: none;
  cursor: pointer;
}

.date-heading {
  font-size: 20px;
  font-weight: 800;
  color: var(--text-main);
  display: inline-flex;
  align-items: center;
}

.week-strip-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 12px;
}

.week-strip-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-main);
}

.week-strip-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 8px;
}

@media (max-width: 650px) {
  .week-strip-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.week-day-pill {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.week-day-pill:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
}

.week-day-pill.active-day {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  color: white;
}

.week-day-pill.active-day .wd-name,
.week-day-pill.active-day .wd-hours {
  color: white;
}

.wd-name {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-dim);
}

.wd-number {
  font-size: 16px;
  font-weight: 800;
  margin: 2px 0;
}

.wd-hours {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
}

.wd-hours.met {
  color: var(--status-success);
}

.wd-dots {
  display: flex;
  gap: 3px;
  margin-top: 4px;
}

.wd-dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background-color: var(--accent-acc);
}

.planner-layout-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 20px;
}

@media (max-width: 950px) {
  .planner-layout-grid {
    grid-template-columns: 1fr;
  }
}

.planner-task-items {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.planner-task-card {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 14px;
  transition: all var(--transition-fast);
}

.planner-task-card:hover {
  background: var(--bg-card-hover);
}

.planner-task-card.priority-high {
  border-left-color: var(--status-danger);
}

.planner-task-card.priority-medium {
  border-left-color: var(--status-warning);
}

.planner-task-card.priority-low {
  border-left-color: var(--status-info);
}

.planner-task-card.task-done {
  opacity: 0.6;
}

.task-details-col {
  flex: 1;
  min-width: 0;
}

.task-main-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.task-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-main);
}

.task-title.strikethrough {
  text-decoration: line-through;
}

.task-badges {
  display: flex;
  gap: 6px;
}

.task-sub-row {
  margin-top: 4px;
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.task-actions-col {
  display: flex;
  gap: 4px;
}

.habit-checklist {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 12px;
}

.habit-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--text-main);
  background: var(--bg-secondary);
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

/* ==========================================================================
   REVISION & PRACTICE
   ========================================================================== */

.tab-pill-group {
  display: flex;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 4px;
  border-radius: var(--radius-md);
  flex-shrink: 0;
  white-space: nowrap;
}

.revision-due-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

@media (max-width: 900px) {
  .revision-due-layout {
    grid-template-columns: 1fr;
  }
}

.due-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.due-item-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 14px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.due-badge-pill {
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  font-size: 10.5px;
  font-weight: 700;
  background: rgba(245, 158, 11, 0.15);
  color: var(--status-warning);
  white-space: nowrap;
}

.due-badge-pill.danger {
  background: rgba(239, 68, 68, 0.15);
  color: var(--status-danger);
}

.due-content {
  flex: 1;
}

.due-title-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.due-reason {
  margin-top: 2px;
}

/* ==========================================================================
   PROGRESS ANALYTICS
   ========================================================================== */

.chart-legend {
  display: flex;
  gap: 16px;
  font-size: 12px;
  color: var(--text-muted);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.legend-color-dot {
  width: 10px;
  height: 10px;
  border-radius: 2px;
}

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

.svg-chart-responsive {
  width: 100%;
  height: 220px;
  display: block;
}

.donut-chart-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-around;
  flex-wrap: wrap;
  gap: 20px;
}

.donut-legend-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 200px;
}

.donut-legend-item {
  display: flex;
  align-items: center;
  gap: 10px;
}

.donut-dot {
  width: 12px;
  height: 12px;
  border-radius: 3px;
  flex-shrink: 0;
}

.donut-label {
  display: flex;
  justify-content: space-between;
  width: 100%;
  font-size: 12.5px;
}

.milestones-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
}

.milestone-badge-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 14px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.milestone-badge-card.unlocked {
  border-color: rgba(16, 185, 129, 0.3);
  background: rgba(16, 185, 129, 0.04);
}

.milestone-icon {
  font-size: 24px;
  line-height: 1;
}

.milestone-title {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--text-main);
}

/* ==========================================================================
   SETTINGS & PLANNING
   ========================================================================== */

.settings-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

@media (max-width: 950px) {
  .settings-grid {
    grid-template-columns: 1fr;
  }
}

.span-full {
  grid-column: 1 / -1;
}

.calculation-summary-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 18px;
}

.calc-row {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px solid var(--border-color);
  font-size: 13px;
  color: var(--text-muted);
}

.calc-row:last-child {
  border-bottom: none;
}

.calc-row.highlight {
  color: var(--text-main);
  font-size: 14px;
  font-weight: 700;
}

.batch-rename-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.batch-rename-item {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--bg-secondary);
  padding: 12px;
  border-radius: var(--radius-md);
}

.batch-input-col {
  flex: 1;
}

.input-inline-wrap {
  display: flex;
  gap: 8px;
  margin-top: 4px;
}

.theme-toggle-box {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.theme-option {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--bg-secondary);
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  cursor: pointer;
}

.backup-actions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.backup-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.backup-box h4 {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 4px;
}

.danger-zone-box {
  border: 1px solid rgba(239, 68, 68, 0.3);
  background: rgba(239, 68, 68, 0.05);
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

/* ==========================================================================
   BUTTONS, INPUTS & CONTROLS
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition-fast);
  text-decoration: none;
  line-height: 1.4;
}

.btn-primary {
  background: var(--accent-gradient);
  color: #FFFFFF;
  box-shadow: 0 4px 14px var(--accent-glow);
}

.btn-primary:hover {
  opacity: 0.95;
  transform: translateY(-1px);
}

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

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

.btn-outline-sm {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 5px 12px;
  font-size: 12px;
  border-radius: var(--radius-sm);
}

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

.btn-danger {
  background: var(--status-danger);
  color: white;
}

.btn-danger:hover {
  opacity: 0.9;
}

.btn-ghost {
  background: transparent;
  border: none;
  color: var(--text-muted);
}

.btn-ghost:hover {
  color: var(--text-main);
}

.btn-lg {
  padding: 12px 24px;
  font-size: 15px;
  border-radius: var(--radius-md);
}

.btn-sm {
  padding: 5px 12px;
  font-size: 12px;
}

.btn.disabled {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
}

.btn-icon {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: color var(--transition-fast);
}

.btn-icon:hover {
  color: var(--text-main);
}

.btn-icon.text-danger:hover {
  color: var(--status-danger);
}

.btn-close {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 18px;
  cursor: pointer;
}

.btn-close:hover {
  color: var(--text-main);
}

/* Form Controls */
.form-group {
  margin-bottom: 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  text-align: left;
}

.form-group label {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-muted);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 600px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

.input-text, .input-select, .input-textarea {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  font-family: var(--font-sans);
  outline: none;
  transition: border-color var(--transition-fast);
  width: 100%;
}

.input-text:focus, .input-select:focus, .input-textarea:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 2px var(--accent-glow);
}

.input-select-sm {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  outline: none;
}

.input-textarea {
  resize: vertical;
}

.checkbox-custom {
  width: 16px;
  height: 16px;
  accent-color: var(--accent-primary);
  cursor: pointer;
}

.checkbox-group label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

.form-section-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
}

.form-section-box h4 {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-main);
}

/* Badges & Pills */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.3px;
}

.badge-primary {
  background: rgba(99, 102, 241, 0.15);
  color: #818CF8;
}

.badge-secondary {
  background: rgba(16, 185, 129, 0.15);
  color: #34D399;
}

.badge-neutral {
  background: var(--bg-secondary);
  color: var(--text-muted);
}

.badge-subtle {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-muted);
}

.badge-success {
  background: rgba(16, 185, 129, 0.15);
  color: var(--status-success);
}

.badge-warning {
  background: rgba(245, 158, 11, 0.15);
  color: var(--status-warning);
}

.badge-danger {
  background: rgba(239, 68, 68, 0.15);
  color: var(--status-danger);
}

.badge-priority.priority-high {
  background: rgba(239, 68, 68, 0.2);
  color: #F87171;
}

.badge-priority.priority-medium {
  background: rgba(245, 158, 11, 0.2);
  color: #FBBF24;
}

.badge-priority.priority-low {
  background: rgba(14, 165, 233, 0.2);
  color: #38BDF8;
}

.subject-pill {
  display: inline-flex;
  align-items: center;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  font-size: 11.5px;
  font-weight: 600;
  color: var(--subj-color, var(--text-main));
  background: rgba(255, 255, 255, 0.05);
}

/* Modals */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: fadeIn 0.2s ease-out;
}

.modal-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 520px;
  box-shadow: var(--shadow-lg);
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.modal-card.modal-lg {
  max-width: 720px;
}

.modal-header {
  padding: 18px 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
}

.modal-body {
  padding: 24px;
  overflow-y: auto;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 20px;
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}

.toast-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 12px 18px;
  color: var(--text-main);
  font-size: 13px;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 10px;
  pointer-events: auto;
  animation: slideInRight 0.25s ease-out;
  transition: opacity 0.3s, transform 0.3s;
}

.toast-item.hide {
  opacity: 0;
  transform: translateX(20px);
}

.toast-icon {
  font-weight: 800;
}

.toast-success .toast-icon { color: var(--status-success); }
.toast-warning .toast-icon { color: var(--status-warning); }
.toast-danger .toast-icon { color: var(--status-danger); }
.toast-info .toast-icon { color: var(--status-info); }

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(30px); }
  to { opacity: 1; transform: translateX(0); }
}

/* Utilities */
.hidden { display: none !important; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-primary { color: var(--accent-acc) !important; }
.text-success { color: var(--status-success) !important; }
.text-warning { color: var(--status-warning) !important; }
.text-danger { color: var(--status-danger) !important; }
.text-muted { color: var(--text-muted); }
.text-dim { color: var(--text-dim); }
.text-xs { font-size: 11px; }
.text-sm { font-size: 12.5px; }
.font-bold { font-weight: 700; }
.mt-1 { margin-top: 4px; }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 12px; }
.mt-4 { margin-top: 16px; }
.mt-5 { margin-top: 20px; }
.mt-6 { margin-top: 24px; }
.mb-2 { margin-bottom: 8px; }
.mb-4 { margin-bottom: 16px; }
.ml-1 { margin-left: 4px; }
.ml-2 { margin-left: 8px; }
.py-6 { padding-top: 24px; padding-bottom: 24px; }
.py-8 { padding-top: 32px; padding-bottom: 32px; }

.empty-state-mini {
  padding: 24px 16px;
  text-align: center;
  color: var(--text-muted);
  font-size: 13px;
}

.empty-state-large {
  padding: 48px 24px;
  text-align: center;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.empty-state-large h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
  margin-top: 12px;
}

.empty-state-large p {
  font-size: 13px;
  margin-top: 4px;
}

/* Responsive Breakpoints & Mobile Drawer */
@media (max-width: 1024px) {
  .app-sidebar {
    transform: translateX(-100%);
    transition: transform 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: none;
    z-index: 1000;
  }

  body.sidebar-open .app-sidebar,
  .app-sidebar.open {
    transform: translateX(0) !important;
    box-shadow: 12px 0 35px rgba(0, 0, 0, 0.65);
  }

  .sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.65);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 995;
    opacity: 0;
    transition: opacity 0.25s ease;
    pointer-events: none;
  }

  body.sidebar-open .sidebar-overlay,
  .sidebar-overlay.active {
    display: block !important;
    opacity: 1 !important;
    pointer-events: auto !important;
  }

  .app-main {
    margin-left: 0;
  }

  .mobile-only {
    display: flex !important;
  }

  .btn-icon.mobile-only {
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    min-width: 44px;
    min-height: 44px;
    padding: 8px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-main);
    touch-action: manipulation;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
  }

  .btn-icon.mobile-only:active {
    transform: scale(0.95);
    background: var(--bg-card-hover);
  }

  .btn-close-sidebar {
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    cursor: pointer;
    touch-action: manipulation;
  }

  .btn-close-sidebar:hover,
  .btn-close-sidebar:active {
    color: var(--text-main);
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
  }

  .academic-path-pill {
    cursor: pointer;
    touch-action: manipulation;
  }

  .view-content-area {
    padding: 20px 16px 40px;
  }

  .app-topbar {
    padding: 0 16px;
  }
}