:root {
  /* Extension Light Academic Theme Tokens */
  --primary: #18181b;
  --primary-hover: #27272a;
  --primary-light: #f4f4f5;
  --primary-border: #e4e4e7;
  
  --bg: #f8fafc;
  --surface: #ffffff;
  --surface-hover: #f4f4f5;
  --surface-border: #e4e4e7;
  --surface-border-strong: #d4d4d8;

  --text-main: #0f172a;
  --text-muted: #64748b;
  --text-subtle: #94a3b8;

  --danger: #ef4444;
  --danger-light: #fef2f2;
  --danger-border: #fecaca;

  --warning: #f59e0b;
  --warning-light: #fffbeb;

  --success: #10b981;
  --success-light: #ecfdf5;
  --success-border: #a7f3d0;

  /* Permanent Course Colors */
  --course-intro-eng: #7c7c7c;
  --course-calc: #dc2626;
  --course-physics: #4b99d2;
  --course-english: #525252;
  --course-islamic: #489160;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 18px;
  --radius-full: 9999px;

  --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, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.12);

  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Inter", sans-serif;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

[data-theme="dark"] {
  --primary: #f4f4f6;
  --primary-hover: #ffffff;
  --primary-light: rgba(255, 255, 255, 0.08);
  --primary-border: rgba(255, 255, 255, 0.16);

  --bg: #121215;
  --surface: #1a1a1f;
  --surface-hover: #24242b;
  --surface-border: #2c2c36;
  --surface-border-strong: #3f3f4c;

  --text-main: #f4f4f6;
  --text-muted: #a1a1aa;
  --text-subtle: #71717a;

  --danger: #f87171;
  --danger-light: rgba(239, 68, 68, 0.15);
  --danger-border: rgba(239, 68, 68, 0.3);

  --warning: #fbbf24;
  --warning-light: rgba(245, 158, 11, 0.15);

  --success: #34d399;
  --success-light: rgba(16, 185, 129, 0.15);
  --success-border: rgba(16, 185, 129, 0.3);

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.45);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.55), 0 2px 4px -2px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.65);
}

/* Dark theme specific component overrides for mobile web */
[data-theme="dark"] * {
  scrollbar-color: #3f3f4c transparent;
}
[data-theme="dark"] ::-webkit-scrollbar-thumb {
  background: #3f3f4c;
}
[data-theme="dark"] ::-webkit-scrollbar-thumb:hover {
  background: #525260;
}

[data-theme="dark"] .app-header {
  background: var(--surface);
  border-bottom-color: var(--surface-border);
}

[data-theme="dark"] .btn-icon {
  background: #24242b;
  border-color: #3f3f4c;
  color: var(--text-muted);
}
[data-theme="dark"] .btn-icon:hover {
  background: #2c2c34;
  color: var(--text-main);
  border-color: #525260;
}

[data-theme="dark"] .app-nav {
  background: #141417;
  border: 1px solid var(--surface-border);
}
[data-theme="dark"] .nav-item {
  color: var(--text-muted);
}
[data-theme="dark"] .nav-item:hover {
  color: var(--text-main);
}
[data-theme="dark"] .nav-item.active {
  background: #24242b;
  color: #f4f4f6;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
}
[data-theme="dark"] .nav-item.active .nav-icon {
  color: #f4f4f6;
}
[data-theme="dark"] .badge-count {
  background: rgba(255, 255, 255, 0.1);
  color: #f4f4f6;
}

[data-theme="dark"] .sync-banner {
  background: #141417;
  border-bottom-color: var(--surface-border);
  color: var(--text-muted);
}

/* Calendar Grid & Day Cells in Dark Mode */
[data-theme="dark"] .calendar-grid {
  background: var(--surface-border);
  border-color: var(--surface-border);
}
[data-theme="dark"] .cal-day-cell {
  background: var(--surface);
  color: var(--text-main);
}
[data-theme="dark"] .cal-day-cell:hover,
[data-theme="dark"] .cal-day-cell:active {
  background: var(--surface-hover);
  box-shadow: inset 0 0 0 1.5px var(--surface-border-strong);
}
[data-theme="dark"] .cal-day-cell.other-month {
  background: #141417;
  opacity: 0.35;
}
[data-theme="dark"] .cal-day-cell.other-month .day-number {
  color: #71717a;
}
[data-theme="dark"] .cal-day-cell.other-month:hover,
[data-theme="dark"] .cal-day-cell.other-month:active {
  background: #18181d;
  opacity: 0.7;
}
[data-theme="dark"] .cal-day-cell.is-today {
  background: var(--surface-hover);
  box-shadow: inset 0 0 0 2px var(--primary) !important;
}
[data-theme="dark"] .cal-day-cell.is-today .day-number {
  color: var(--text-main);
  font-weight: 800;
}
[data-theme="dark"] .cal-day-cell.is-selected {
  background: var(--surface-hover);
  box-shadow: inset 0 0 0 2px var(--primary) !important;
}
[data-theme="dark"] .cal-day-cell.is-selected .day-number {
  color: var(--text-main);
  font-weight: 800;
}

[data-theme="dark"] .cal-nav-btn,
[data-theme="dark"] .btn-today {
  background: var(--surface-hover);
  border-color: var(--surface-border);
  color: var(--text-muted);
}
[data-theme="dark"] .cal-nav-btn:hover,
[data-theme="dark"] .cal-nav-btn:active,
[data-theme="dark"] .btn-today:hover,
[data-theme="dark"] .btn-today:active {
  background: #2c2c34;
  color: var(--text-main);
  border-color: var(--surface-border-strong);
}

[data-theme="dark"] .legend-chip {
  background: var(--surface-hover);
  border-color: var(--surface-border);
  color: var(--text-main);
}

[data-theme="dark"] .selected-day-container {
  background: var(--surface);
  border-color: var(--surface-border);
}
[data-theme="dark"] .selected-day-header {
  border-bottom-color: var(--surface-border);
}

[data-theme="dark"] .settings-card {
  background: var(--surface);
  border-color: var(--surface-border);
}

/* Task Cards & States in Dark Mode */
[data-theme="dark"] .deadline-mobile-card,
[data-theme="dark"] .task-card {
  background: var(--surface);
  border-color: var(--surface-border);
}
[data-theme="dark"] .deadline-mobile-card:hover,
[data-theme="dark"] .task-card:hover {
  border-color: var(--surface-border-strong);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}
[data-theme="dark"] .task-card.is-active-reading {
  background: #24242b !important;
  border-color: #525260 !important;
  box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.12);
}
[data-theme="dark"] .task-card.is-completed,
[data-theme="dark"] .task-card.status-completed,
[data-theme="dark"] .deadline-mobile-card.status-completed {
  background: rgba(26, 26, 31, 0.6) !important;
  opacity: 0.65;
}

/* Category Type Pills in Dark Mode */
[data-theme="dark"] .type-quiz {
  background: rgba(245, 158, 11, 0.2);
  color: #fbbf24;
  border: 1px solid rgba(245, 158, 11, 0.35);
}
[data-theme="dark"] .type-assignment {
  background: rgba(255, 255, 255, 0.08);
  color: #f4f4f6;
  border: 1px solid rgba(255, 255, 255, 0.16);
}
[data-theme="dark"] .type-exam {
  background: rgba(239, 68, 68, 0.2);
  color: #f87171;
  border: 1px solid rgba(239, 68, 68, 0.35);
}
[data-theme="dark"] .type-project {
  background: rgba(168, 85, 247, 0.2);
  color: #c084fc;
  border: 1px solid rgba(168, 85, 247, 0.35);
}
[data-theme="dark"] .type-lab {
  background: rgba(16, 185, 129, 0.2);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.35);
}
[data-theme="dark"] .type-meeting {
  background: rgba(255, 255, 255, 0.08);
  color: #f4f4f6;
  border: 1px solid rgba(255, 255, 255, 0.16);
}
[data-theme="dark"] .type-other {
  background: #24242b;
  color: #a1a1aa;
  border: 1px solid #3f3f4c;
}

/* Urgency Badges in Dark Mode */
[data-theme="dark"] .urgency-badge.overdue {
  background: rgba(239, 68, 68, 0.2);
  color: #fca5a5;
  border: 1px solid rgba(239, 68, 68, 0.4);
}
[data-theme="dark"] .urgency-badge.today {
  background: rgba(239, 68, 68, 0.2);
  color: #fca5a5;
  border: 1px solid rgba(239, 68, 68, 0.4);
}
[data-theme="dark"] .urgency-badge.tomorrow {
  background: rgba(245, 158, 11, 0.2);
  color: #fde68a;
  border: 1px solid rgba(245, 158, 11, 0.4);
}
[data-theme="dark"] .urgency-badge.soon {
  background: var(--surface-hover);
  color: var(--text-main);
  border: 1px solid var(--surface-border-strong);
}
[data-theme="dark"] .urgency-badge.future {
  background: #24242b;
  color: #a1a1aa;
  border: 1px solid #3f3f4c;
}
[data-theme="dark"] .urgency-badge.completed {
  background: rgba(16, 185, 129, 0.2);
  color: #6ee7b7;
  border: 1px solid rgba(16, 185, 129, 0.4);
}

/* Weight & Meta Pills in Dark Mode */
[data-theme="dark"] .task-weight-pill {
  background: var(--surface-hover);
  color: var(--text-main);
  border-color: var(--surface-border-strong);
}
[data-theme="dark"] .task-weight-pill.weight-major {
  background: rgba(239, 68, 68, 0.18);
  color: #fca5a5;
  border-color: rgba(239, 68, 68, 0.35);
}
[data-theme="dark"] .task-weight-pill.weight-medium {
  background: rgba(245, 158, 11, 0.18);
  color: #fde68a;
  border-color: rgba(245, 158, 11, 0.35);
}
[data-theme="dark"] .meta-pill {
  background: var(--surface-hover);
  color: var(--text-muted);
  border: 1px solid var(--surface-border);
}
[data-theme="dark"] .meta-pill.time-class {
  background: rgba(16, 185, 129, 0.18);
  color: #6ee7b7;
  border-color: rgba(16, 185, 129, 0.35);
}

/* Day Sheet Drawer in Dark Mode */
[data-theme="dark"] .day-sheet-drawer {
  background: var(--surface);
  border-color: var(--surface-border);
}
[data-theme="dark"] .day-sheet-header {
  border-bottom-color: var(--surface-border);
}
[data-theme="dark"] .drag-pill {
  background: #3f3f4c;
}
[data-theme="dark"] .btn-icon-close,
[data-theme="dark"] .btn-modal-close {
  background: var(--surface-hover);
  border-color: var(--surface-border);
  color: var(--text-muted);
}
[data-theme="dark"] .btn-icon-close:hover,
[data-theme="dark"] .btn-modal-close:hover {
  background: #2c2c34;
  color: var(--text-main);
}
[data-theme="dark"] .day-sheet-item {
  background: var(--surface);
  border-color: var(--surface-border);
}
[data-theme="dark"] .day-sheet-item:hover {
  background: var(--surface-hover);
  border-color: var(--surface-border-strong);
}
[data-theme="dark"] .btn-day-add {
  background: var(--surface-hover);
  border-color: var(--surface-border-strong);
  color: var(--text-main);
}
[data-theme="dark"] .btn-day-add:hover {
  background: #2c2c34;
}
[data-theme="dark"] .btn-add-action {
  background: var(--surface-hover);
  border-color: var(--surface-border-strong);
  color: var(--text-main);
}
[data-theme="dark"] .btn-add-action:hover {
  background: #2c2c34;
  border-color: var(--text-muted);
}
[data-theme="dark"] .btn-secondary-action {
  background: var(--surface-hover);
  border-color: var(--surface-border);
  color: var(--text-main);
}
[data-theme="dark"] .btn-secondary-action:hover {
  background: #2c2c34;
}

/* Schedule & Syllabus Rows in Dark Mode */
[data-theme="dark"] .schedule-row {
  background: #141417;
  border-color: var(--surface-border);
}
[data-theme="dark"] .schedule-time-badge {
  background: var(--surface-hover);
  color: var(--text-main);
}
[data-theme="dark"] .syllabus-item-card {
  background: #141417;
  border-color: var(--surface-border);
}
[data-theme="dark"] .toggle-control-row {
  background: #141417;
  border-color: var(--surface-border);
}
[data-theme="dark"] .notification-timing-notes {
  background: #141417;
  border-color: var(--surface-border);
  color: var(--text-main);
}
[data-theme="dark"] .feed-url-display {
  background: #141417;
  border-color: var(--surface-border);
}
[data-theme="dark"] .feed-url-code {
  color: var(--text-main);
}
[data-theme="dark"] .sync-metrics {
  background: #141417;
  border-color: var(--surface-border);
}
[data-theme="dark"] .reading-meta-section {
  background: var(--surface);
  border-color: var(--surface-border);
}
[data-theme="dark"] .reading-box-content {
  --quote-fade-bg: #141417;
  background: #141417;
  border-color: #2c2c36;
  color: var(--text-main);
}
[data-theme="dark"] .btn-copy-announcement {
  background: var(--surface-hover);
  border-color: var(--surface-border);
  color: var(--text-muted);
}
[data-theme="dark"] .btn-copy-announcement:hover {
  background: #2c2c34;
  color: var(--text-main);
  border-color: var(--surface-border-strong);
}

/* Extractor Modals & Result Badges in Dark Mode */
[data-theme="dark"] .extract-result-item {
  background: var(--surface);
  border-color: var(--surface-border);
}
[data-theme="dark"] .extract-result-item:hover {
  border-color: var(--surface-border-strong);
}
[data-theme="dark"] .extract-status-pill.loading {
  background: var(--surface-hover);
  border-color: var(--surface-border-strong);
  color: var(--text-main);
}
[data-theme="dark"] .extract-status-pill.success {
  background: rgba(16, 185, 129, 0.18);
  border-color: rgba(16, 185, 129, 0.35);
  color: #6ee7b7;
}
[data-theme="dark"] .extract-status-pill.rejected {
  background: rgba(245, 158, 11, 0.18);
  border-color: rgba(245, 158, 11, 0.35);
  color: #fde68a;
}
[data-theme="dark"] .extract-status-pill.error {
  background: rgba(239, 68, 68, 0.18);
  border-color: rgba(239, 68, 68, 0.35);
  color: #fca5a5;
}
[data-theme="dark"] .badge-jev-tag {
  background: var(--surface-hover);
  color: var(--text-main);
}
[data-theme="dark"] .badge-weight-tag {
  background: rgba(16, 185, 129, 0.2);
  color: #6ee7b7;
}
[data-theme="dark"] .badge-room-tag {
  background: var(--surface-hover);
  border-color: var(--surface-border);
  color: #d4d4d8;
}

[data-theme="dark"] .selected-day-container {
  background: var(--surface);
  border-color: var(--surface-border);
}
[data-theme="dark"] .selected-day-item {
  background: var(--surface);
  border-color: var(--surface-border);
}
[data-theme="dark"] .selected-day-item:hover {
  background: var(--surface-hover);
  border-color: var(--surface-border-strong);
}
[data-theme="dark"] .btn-xs-add,
[data-theme="dark"] .btn-xs-sheet {
  background: var(--surface-hover);
  border-color: var(--surface-border-strong);
  color: var(--text-main);
}
[data-theme="dark"] .btn-xs-add:hover,
[data-theme="dark"] .btn-xs-sheet:hover {
  background: #2c2c34;
}
[data-theme="dark"] .btn-sel-action {
  background: var(--surface-hover);
  border-color: var(--surface-border);
  color: #d4d4d8;
}
[data-theme="dark"] .btn-sel-action:hover {
  background: #2c2c34;
  color: #ffffff;
}

[data-theme="dark"] .mobile-input,
[data-theme="dark"] .mobile-select,
[data-theme="dark"] .mobile-textarea,
[data-theme="dark"] .form-input,
[data-theme="dark"] .form-select,
[data-theme="dark"] .form-textarea {
  background-color: #1a1a1f;
  border-color: #3f3f4c;
  color: #f4f4f6;
}
[data-theme="dark"] .mobile-input::placeholder,
[data-theme="dark"] .mobile-textarea::placeholder,
[data-theme="dark"] .form-input::placeholder,
[data-theme="dark"] .form-textarea::placeholder {
  color: #71717a;
}
[data-theme="dark"] .mobile-input:focus,
[data-theme="dark"] .mobile-select:focus,
[data-theme="dark"] .mobile-textarea:focus,
[data-theme="dark"] .form-input:focus,
[data-theme="dark"] .form-select:focus,
[data-theme="dark"] .form-textarea:focus {
  border-color: #a1a1aa;
  box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.12);
}

[data-theme="dark"] .modal-content,
[data-theme="dark"] .modal-sheet,
[data-theme="dark"] .modal-card,
[data-theme="dark"] .reading-sheet-mobile {
  background: var(--surface);
  border-color: var(--surface-border);
}

[data-theme="dark"] .btn-outline-action {
  background: var(--surface-hover);
  border-color: var(--surface-border);
  color: var(--text-main);
}
[data-theme="dark"] .btn-outline-action:hover {
  background: #2c2c34;
  border-color: var(--surface-border-strong);
}

[data-theme="dark"] .btn-card-action {
  background: var(--surface-hover);
  border-color: var(--surface-border);
  color: var(--text-main);
}
[data-theme="dark"] .btn-card-action:hover {
  background: #2c2c34;
  border-color: var(--surface-border-strong);
}

[data-theme="dark"] .doctor-quote-box,
[data-theme="dark"] .reading-announcement-box,
[data-theme="dark"] .reading-box-content {
  --quote-fade-bg: #141417;
  background: #141417;
  border-color: #2c2c36;
  color: var(--text-main);
}

[data-theme="dark"] .quote-label {
  color: #d4d4d8;
}

[data-theme="dark"] .student-notes-box,
[data-theme="dark"] .reading-notes-box {
  background: var(--surface-hover) !important;
  border-color: var(--surface-border-strong) !important;
  border-left-color: var(--surface-border-strong) !important;
}

[data-theme="dark"] .student-notes-header {
  color: var(--text-main) !important;
}

[data-theme="dark"] .grade-tracker-widget {
  background: var(--surface);
  border-color: var(--surface-border);
}

[data-theme="dark"] .grade-course-stat-card {
  background: #141417;
  border-color: var(--surface-border);
}

[data-theme="dark"] .grade-progress-bar-bg {
  background: #3f3f4c;
}

[data-theme="dark"] .course-badge-main {
  background: rgba(255, 255, 255, 0.08) !important;
  border-color: rgba(255, 255, 255, 0.15) !important;
}
[data-theme="dark"] .course-name-text {
  color: #f8fafc !important;
}
[data-theme="dark"] .course-code-tag {
  color: #cbd5e1 !important;
  border-color: rgba(255, 255, 255, 0.12) !important;
}

[data-theme="dark"] .stat-summary-card,
[data-theme="dark"] .stat-card {
  background: var(--surface);
  border-color: var(--surface-border);
}

[data-theme="dark"] .filter-chip {
  background: var(--surface-hover);
  border-color: var(--surface-border);
  color: var(--text-muted);
}
[data-theme="dark"] .filter-chip.active {
  background: #24242b;
  border-color: var(--surface-border-strong);
  color: #f4f4f6;
}

[data-theme="dark"] .room-preset-btn {
  background: #1e1e24;
  border-color: #3f3f4c;
  color: var(--text-main);
}
[data-theme="dark"] .room-preset-btn:hover {
  background: #272730;
  border-color: #525260;
}
[data-theme="dark"] .room-preset-btn.is-active {
  background: #2c2c36;
  border-color: #f4f4f6;
  color: #ffffff;
}

[data-theme="dark"] .toast {
  background: #1e1e24;
  color: #f4f4f6;
  border: 1px solid #3f3f4c;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
}


* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

.hidden, [hidden] {
  display: none !important;
}

/* Scalable Vector SVG Icons (Feather/Lucide standard) */
.ui-icon {
  width: 1em;
  height: 1em;
  display: inline-block;
  vertical-align: -0.15em;
  stroke-width: 2;
  stroke: currentColor;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}

/* Custom Scrollbar */
* {
  scrollbar-width: thin;
  scrollbar-color: #cbd5e1 transparent;
}

::-webkit-scrollbar {
  width: 5px;
  height: 5px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 9999px;
}
::-webkit-scrollbar-thumb:hover {
  background: #94a3b8;
}
::-webkit-scrollbar-corner {
  background: transparent;
}
::-webkit-scrollbar-button {
  display: none;
  width: 0;
  height: 0;
}

/* Horizontal sliding bars (Course legend & Quick links) */
.legend-items::-webkit-scrollbar,
.course-legend-bar::-webkit-scrollbar,
.quick-links-chips-row::-webkit-scrollbar {
  height: 4px;
}

/* Inline icon margin spacing utility */
.mr-1 {
  margin-right: 5px;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg);
  color: var(--text-main);
  line-height: 1.45;
  font-size: 13.5px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  padding-bottom: calc(24px + var(--safe-bottom));
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.app-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--surface);
  border-bottom: 1px solid var(--surface-border);
  padding-top: var(--safe-top);
  box-shadow: var(--shadow-sm);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px 8px;
  max-width: 640px;
  margin: 0 auto;
  width: 100%;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 8px;
}

.brand-bolt {
  width: 30px;
  height: 30px;
  background: linear-gradient(135deg, #18181b, #27272a);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 16px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

[data-theme="dark"] .brand-bolt {
  background: linear-gradient(135deg, #24242b, #33333d);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-size: 14.5px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 4px;
}

.brand-badge {
  font-size: 10px;
  font-weight: 600;
  padding: 2px 6px;
  background: var(--surface-hover);
  color: var(--text-main);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-full);
}

.brand-subtitle {
  font-size: 10.5px;
  font-weight: 500;
  color: var(--text-muted);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

.wifi-status-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: var(--radius-full);
  background: var(--success-light);
  color: #059669;
  border: 1px solid var(--success-border);
  min-height: 28px;
}

.wifi-status-badge.offline {
  background: var(--warning-light);
  color: #d97706;
  border-color: #fde68a;
}

.wifi-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: currentColor;
}

.btn-icon {
  width: 32px;
  height: 32px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 6px;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s ease;
  touch-action: manipulation;
}

.btn-icon::after {
  content: '';
  position: absolute;
  inset: -6px;
}

.btn-icon:hover, .btn-icon:active {
  background: var(--bg);
  color: var(--text-main);
  border-color: var(--surface-border-strong);
}

.header-action-desktop {
  display: none;
}

.refresh-icon {
  font-size: 14px;
  display: inline-block;
}

.refresh-spinning {
  animation: spin 0.8s linear infinite;
}

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

.sync-banner {
  background: #f1f5f9;
  font-size: 11px;
  color: var(--text-muted);
  text-align: center;
  padding: 5px 14px;
  border-top: 1px solid var(--surface-border);
  border-bottom: 1px solid var(--surface-border);
  max-width: 640px;
  margin: 0 auto;
  width: 100%;
}

/* Main Navigation Tabs: Segmented Control (Hybrid 4 tabs mobile / 2 tabs desktop) */
.app-nav {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 3px;
  background: #f1f5f9;
  padding: 3px;
  border-radius: 9px;
  margin: 8px auto 10px;
  max-width: 640px;
  width: calc(100% - 24px);
}

.nav-item {
  min-width: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  min-height: 38px;
  padding: 6px 2px;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 11.5px;
  font-weight: 600;
  border-radius: 6px;
  cursor: pointer;
  position: relative;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.nav-item:active {
  background: rgba(0, 0, 0, 0.04);
}

.nav-item.active {
  background: var(--surface);
  color: var(--text-main);
  font-weight: 700;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.nav-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  flex-shrink: 0;
}

.nav-icon svg {
  width: 14px;
  height: 14px;
}

.nav-label {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 11px;
}

.badge-count {
  font-size: 9.5px;
  font-weight: 700;
  padding: 1px 5px;
  border-radius: var(--radius-full);
  background: var(--surface-hover);
  color: var(--text-main);
  border: 1px solid var(--surface-border);
  margin-left: 2px;
  flex-shrink: 0;
}

/* Responsive Hybrid Navigation Rules */
@media (max-width: 640px) {
  .header-action-desktop {
    display: none !important;
  }
  .nav-label-desktop {
    display: none !important;
  }
  .nav-label-mobile {
    display: inline !important;
  }
  .nav-item-mobile-only {
    display: flex !important;
  }
  .app-nav {
    grid-template-columns: repeat(4, 1fr) !important;
  }
}

@media (min-width: 641px) {
  .header-action-desktop {
    display: inline-flex !important;
  }
  .nav-label-desktop {
    display: inline !important;
    font-size: 12px !important;
  }
  .nav-label-mobile {
    display: none !important;
  }
  .nav-item-mobile-only {
    display: none !important;
  }
  .app-nav {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 6px;
    padding: 4px;
    border-radius: 10px;
  }
  .nav-item {
    min-height: 40px;
    padding: 8px 14px;
    font-size: 12.5px;
    gap: 6px;
  }
  .brand-subtitle {
    display: none;
  }
  #btn-open-day-sheet {
    display: none !important;
  }
}

/* ==========================================================================
   Main Content Layout
   ========================================================================== */
.app-main {
  flex: 1;
  padding: 8px 12px 20px;
  max-width: 640px;
  width: 100%;
  margin: 0 auto;
}

.view-section {
  display: none;
}

.view-section.active {
  display: block;
}

/* ==========================================================================
   VIEW 1: Monthly Calendar (matches extension)
   ========================================================================== */
.calendar-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.month-title-group {
  display: flex;
  align-items: center;
  gap: 6px;
}

.month-heading {
  font-size: 14.5px;
  font-weight: 700;
  color: var(--text-main);
  min-width: auto;
}

.cal-nav-btn {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  color: var(--text-muted);
  width: 30px;
  height: 30px;
  min-width: 30px;
  min-height: 30px;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  cursor: pointer;
  position: relative;
  transition: all 0.12s;
  touch-action: manipulation;
}

.cal-nav-btn::after {
  content: '';
  position: absolute;
  inset: -6px;
}

.cal-nav-btn:hover, .cal-nav-btn:active {
  background: #f1f5f9;
  color: var(--text-main);
}

.btn-today {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  font-size: 11.5px;
  font-weight: 600;
  color: var(--text-muted);
  padding: 0 10px;
  height: 30px;
  min-height: 30px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.12s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  position: relative;
  touch-action: manipulation;
}

.btn-today::after {
  content: '';
  position: absolute;
  inset: -6px;
}

.btn-today:hover, .btn-today:active {
  background: #f1f5f9;
  color: var(--primary);
  border-color: var(--surface-border-strong);
}

.calendar-weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  text-align: center;
  font-size: 10.5px;
  font-weight: 700;
  color: var(--text-subtle);
  padding-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 3px;
  background: var(--surface-border);
  padding: 3px;
  border-radius: 8px;
  border: 1px solid var(--surface-border);
  margin-bottom: 10px;
}

.cal-day-cell {
  background: var(--surface);
  min-height: 50px;
  padding: 4px 3px;
  border-radius: 5px;
  display: flex;
  flex-direction: column;
  transition: all 0.12s ease;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  user-select: none;
}

.cal-day-cell:hover, .cal-day-cell:active {
  background: var(--surface-hover);
  box-shadow: inset 0 0 0 1.5px var(--surface-border-strong);
}

.cal-day-cell.other-month {
  background: var(--surface-hover);
  opacity: 0.55;
}

.cal-day-cell.other-month .day-number {
  color: var(--text-subtle);
}

.cal-day-cell.other-month:hover, .cal-day-cell.other-month:active {
  opacity: 0.9;
  background: var(--surface-border);
}

.cal-day-cell.is-today {
  box-shadow: inset 0 0 0 2px var(--primary) !important;
  background: var(--primary-light);
}

.cal-day-cell.is-today .day-number {
  font-weight: 800;
  color: var(--primary);
}

.cal-day-cell.is-selected {
  box-shadow: inset 0 0 0 2px var(--primary) !important;
  background: var(--surface-hover);
}

.day-number {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1;
  margin-bottom: 2px;
}

/* Event Chips inside calendar cells (matches extension + mobile icon-only mode) */
.cal-event-chips-container {
  display: flex;
  flex-direction: column;
  gap: 3px;
  margin-top: 2px;
  overflow: hidden;
}

.cal-event-chip {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 10px;
  font-weight: 700;
  line-height: 1.25;
  padding: 2px 5px;
  border-radius: 4px;
  color: white;
  border-left: 2px solid rgba(0, 0, 0, 0.25);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.cal-event-chip .chip-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.cal-event-chip .chip-icon svg {
  width: 11px;
  height: 11px;
  stroke: currentColor;
}

.cal-event-chip.is-completed {
  background-color: #f1f5f9 !important;
  color: #334155 !important;
  border-left-width: 2.5px;
  border-left-style: solid;
  text-decoration: line-through;
  opacity: 0.88;
  box-shadow: none;
}

.cal-event-chip.is-completed .chip-icon,
.cal-event-chip.is-completed .chip-svg-icon,
.cal-event-chip.is-completed .ui-icon {
  stroke: #10b981 !important;
  color: #10b981 !important;
}

.cal-event-chip.is-completed .chip-text {
  color: #334155 !important;
}

[data-theme="dark"] .cal-event-chip.is-completed {
  background-color: #242c38 !important;
  color: #f1f5f9 !important;
  border-left-width: 2.5px;
  border-left-style: solid;
  opacity: 0.88;
}

[data-theme="dark"] .cal-event-chip.is-completed .chip-icon,
[data-theme="dark"] .cal-event-chip.is-completed .chip-svg-icon,
[data-theme="dark"] .cal-event-chip.is-completed .ui-icon {
  stroke: #34d399 !important;
  color: #34d399 !important;
}

[data-theme="dark"] .cal-event-chip.is-completed .chip-text {
  color: #f1f5f9 !important;
}

.cal-event-more {
  font-size: 8.5px;
  font-weight: 700;
  color: var(--text-muted);
  text-align: right;
  padding-right: 2px;
}

/* On mobile / narrow screens (<640px): Only display icons; hide text unless div is big enough */
@media (max-width: 640px) {
  .cal-event-chips-container {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 3px;
    align-items: center;
    justify-content: flex-start;
  }

  .cal-event-chip {
    width: 20px;
    height: 20px;
    padding: 0;
    justify-content: center;
    align-items: center;
    border-left: none;
    border-radius: 4px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
  }

  .cal-event-chip .chip-text {
    display: none !important;
  }

  .cal-event-chip .chip-icon svg {
    width: 11px;
    height: 11px;
  }

  .cal-event-more {
    font-size: 8px;
    font-weight: 800;
    color: #475569;
    background: #e2e8f0;
    border-radius: 3px;
    padding: 1px 4px;
    line-height: 1;
    display: inline-flex;
    align-items: center;
    height: 18px;
  }
}

/* On wider screens (>=641px): Display text alongside icons */
@media (min-width: 641px) {
  .cal-event-chip .chip-text {
    display: inline;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
}

/* Course Legend Bar (matches extension) */
.course-legend-panel {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 8px;
  overflow-x: auto;
  margin-bottom: 8px;
}

.legend-header {
  font-size: 10.5px;
  font-weight: 700;
  color: var(--text-subtle);
  text-transform: uppercase;
  flex-shrink: 0;
  letter-spacing: 0.03em;
}

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

.legend-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 10px;
  font-weight: 600;
  color: var(--text-main);
  white-space: nowrap;
  padding: 3px 7px;
  border-radius: 5px;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
}

.legend-color-box {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}

.calendar-tip {
  font-size: 11px;
  color: var(--text-muted);
  text-align: center;
  padding: 4px 8px;
  margin-top: 2px;
}

/* ==========================================================================
   Selected Day Deadlines Container (Matches Extension Layout)
   ========================================================================== */
.selected-day-container {
  margin-top: 10px;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 10px;
}

.selected-day-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--surface-border);
}

.selected-day-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: center;
}

.selected-day-header-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

.btn-xs-add,
.btn-xs-sheet {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-main);
  background: var(--surface-hover);
  border: 1px solid var(--surface-border-strong);
  border-radius: var(--radius-sm);
  padding: 4px 8px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  transition: all 0.15s ease;
  position: relative;
  touch-action: manipulation;
}

.btn-xs-add::after,
.btn-xs-sheet::after {
  content: '';
  position: absolute;
  inset: -6px;
}

.btn-xs-add:hover,
.btn-xs-sheet:hover {
  background: var(--surface-border);
}

.selected-day-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 250px;
  overflow-y: auto;
}

.selected-day-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 8px;
  background: var(--bg);
  border: 1px solid var(--surface-border);
  border-left-width: 4px;
  transition: all 0.12s;
  cursor: pointer;
}

.selected-day-item:hover {
  border-color: var(--surface-border-strong);
  background: var(--surface-hover);
}

.selected-day-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
  flex: 1;
}

.selected-day-course {
  font-size: 10px;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

[data-theme="dark"] .selected-day-course {
  color: #f8fafc !important;
}

.selected-day-item-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.selected-day-item.status-completed .selected-day-item-title {
  text-decoration: line-through;
  color: var(--text-muted);
}

.selected-day-meta-row {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 10.5px;
  color: var(--text-muted);
  flex-wrap: wrap;
}

.selected-day-time {
  display: inline-flex;
  align-items: center;
}

.selected-day-weight {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  font-size: 9.5px;
  font-weight: 700;
  padding: 1px 5px;
  border-radius: 4px;
  background: #ecfdf5;
  color: #065f46;
  border: 1px solid #a7f3d0;
}

.selected-day-actions {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.btn-sel-action {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  padding: 4px 7px;
  font-size: 11px;
  border-radius: 5px;
  cursor: pointer;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  transition: all 0.12s;
  position: relative;
  touch-action: manipulation;
}

.btn-sel-action::after {
  content: '';
  position: absolute;
  inset: -5px;
}

.btn-sel-action:hover {
  background: var(--surface-hover);
  color: var(--text-main);
  border-color: var(--surface-border-strong);
}

.selected-day-empty {
  text-align: center;
  padding: 14px 8px;
  font-size: 12px;
  color: var(--text-muted);
}

/* ==========================================================================
   VIEW 2: Deadlines List & Filters (matches extension)
   ========================================================================== */
.stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 12px;
}

.stat-pill {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 10px;
  padding: 9px 10px;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
}

.stat-num {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.2;
}

.stat-txt {
  font-size: 11px;
  font-weight: 500;
  color: var(--text-muted);
  margin-top: 2px;
}

.stat-urgent .stat-num { color: var(--danger); }
.stat-week .stat-num { color: var(--primary); }
.stat-total .stat-num { color: var(--success); }

/* Grade Tracker Progress Card */
.grade-tracker-widget {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 10px;
  padding: 10px 12px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 12px;
  transition: border-color 0.15s ease;
}

.grade-tracker-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  min-height: 26px;
}

.grade-tracker-breakdown {
  margin-top: 8px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.grade-course-stat-card {
  background: var(--bg);
  border: 1px solid var(--surface-border);
  border-radius: 8px;
  padding: 8px 10px;
}

.search-toolbar {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 12px;
}

.search-input-box {
  position: relative;
  width: 100%;
}

.search-field {
  width: 100%;
  min-height: 40px;
  padding: 7px 12px 7px 34px;
  font-size: 12.5px;
  border: 1px solid var(--surface-border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text-main);
  outline: none;
  font-family: inherit;
  transition: border-color 0.15s;
}

.search-field:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.15);
}

.search-icon {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 13px;
  color: var(--text-subtle);
  pointer-events: none;
}

.filter-chips {
  display: flex;
  gap: 6px;
}

.filter-chip {
  padding: 6px 14px;
  min-height: 34px;
  font-size: 11.5px;
  font-weight: 600;
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  background: #f1f5f9;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s;
}

.filter-chip.active {
  background: var(--surface-hover);
  color: var(--text-main);
  border-color: var(--surface-border-strong);
}

.filter-dropdowns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 0;
}

.mobile-select {
  width: 100%;
  min-height: 38px;
  padding: 6px 10px;
  font-size: 12px;
  border: 1px solid var(--surface-border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text-main);
  outline: none;
  cursor: pointer;
  font-family: inherit;
}

/* Action Bar */
.deadlines-action-bar {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 12px;
}

.deadlines-action-bar .btn-primary-action,
.deadlines-action-bar .btn-add-action {
  min-height: 40px;
  padding: 8px 10px;
  font-size: 12.5px;
  font-weight: 600;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

/* Task Cards (matches extension) */
.deadlines-container {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.task-card {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 12px;
  padding: 12px 14px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 8px;
  position: relative;
  transition: all 0.15s ease;
  border-left-width: 4px;
  cursor: pointer;
}

.task-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--surface-border-strong);
}

.task-card.is-active-reading {
  background: var(--primary-light);
  border-top-color: var(--primary);
  border-right-color: var(--primary);
  border-bottom-color: var(--primary);
  box-shadow: 0 0 0 2px var(--primary-light), var(--shadow-sm);
}

.task-card.is-completed {
  opacity: 0.65;
  background: var(--surface-hover);
}

/* Course Banner with Permanent Subject Color */
.task-course-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 2px;
}

.course-badge-main {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3.5px 10px;
  border-radius: 6px;
  font-size: 11.5px;
  font-weight: 700;
  max-width: 78%;
  min-width: 0;
  border: 1px solid transparent;
}

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

.course-emoji {
  font-size: 11px;
  flex-shrink: 0;
}

.course-name-text {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: 700;
}

.course-code-tag {
  font-size: 9.5px;
  font-weight: 600;
  padding: 1.5px 5px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(0, 0, 0, 0.08);
  flex-shrink: 0;
}

.task-header-right {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

/* Type Pills */
.type-pill {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 6px;
  letter-spacing: 0.02em;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
}

.type-quiz { background: #fef3c7; color: #b45309; }
.type-assignment { background: var(--surface-hover); color: var(--text-main); border: 1px solid var(--surface-border-strong); }
.type-exam { background: #fee2e2; color: #b91c1c; }
.type-project { background: #ede9fe; color: #6d28d9; }
.type-lab { background: #dcfce7; color: #15803d; }
.type-meeting { background: var(--surface-hover); color: var(--text-main); border: 1px solid var(--surface-border-strong); }
.type-other { background: #f1f5f9; color: #475569; }


.task-title-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.status-checkbox-btn {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 2px solid var(--surface-border-strong);
  background: transparent;
  color: transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  margin-top: 0;
  flex-shrink: 0;
  position: relative;
  transition: all 0.15s;
  touch-action: manipulation;
}

.status-checkbox-btn::after {
  content: '';
  position: absolute;
  inset: -8px;
}

.status-checkbox-btn:hover {
  border-color: var(--success);
}

.status-checkbox-btn.checked {
  background: var(--success);
  border-color: var(--success);
  color: #fff;
  font-size: 12px;
}

.task-title-text {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.45;
  flex: 1;
}

.task-card.is-completed .task-title-text {
  text-decoration: line-through;
  color: var(--text-muted);
}

.task-due-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 12px;
  font-weight: 600;
  margin-top: 2px;
}

/* Urgency Badges */
.urgency-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3.5px 10px;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 600;
}

.urgency-badge.overdue { background: var(--danger-light); color: var(--danger); border: 1px solid var(--danger-border); }
.urgency-badge.today { background: var(--danger-light); color: var(--danger); border: 1px solid var(--danger-border); }
.urgency-badge.tomorrow { background: var(--warning-light); color: #b45309; border: 1px solid #fde68a; }
.urgency-badge.soon { background: var(--surface-hover); color: var(--text-main); border: 1px solid var(--surface-border-strong); }
.urgency-badge.future { background: #f1f5f9; color: #475569; border: 1px solid #e2e8f0; }
.urgency-badge.completed { background: var(--success-light); color: var(--success); border: 1px solid var(--success-border); }

.task-weight-pill {
  font-size: 11px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 6px;
  background: var(--surface-hover);
  color: var(--text-main);
  border: 1px solid var(--surface-border);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.task-weight-pill.weight-major {
  background: #fee2e2;
  color: #b91c1c;
  border-color: #fecaca;
  font-weight: 700;
}

.task-weight-pill.weight-medium {
  background: #fef3c7;
  color: #b45309;
  border-color: #fde68a;
}

.meta-pill {
  font-size: 11px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 6px;
  background: #f1f5f9;
  color: var(--text-muted);
}

.meta-pill.time-class {
  background: #ecfdf5;
  color: #047857;
  border: 1px solid #a7f3d0;
}

/* Doctor's announcement quote (expandable, antislop craft) */
.doctor-quote-box {
  --quote-fade-bg: #f8fafc;
  background: #f8fafc;
  border: 1px solid var(--surface-border);
  border-left: 3.5px solid var(--surface-border-strong);
  border-radius: 0 8px 8px 0;
  padding: 9px 11px;
  margin-top: 4px;
  transition: background-color 0.15s ease;
}

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

.quote-label {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 4px;
  letter-spacing: 0.02em;
}

.quote-body {
  font-size: 12px;
  color: var(--text-main);
  line-height: 1.45;
  white-space: pre-line;
  word-break: break-word;
  transition: max-height 0.2s ease;
}

.quote-body.clamped {
  max-height: 4.5em;
  overflow: hidden;
  position: relative;
}

.quote-body.clamped::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 20px;
  background: linear-gradient(to bottom, transparent, var(--quote-fade-bg, #f8fafc));
  pointer-events: none;
}

.quote-body.expanded {
  max-height: none;
  overflow: visible;
}

.btn-toggle-quote {
  background: transparent;
  border: none;
  color: var(--primary);
  font-size: 11.5px;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 2px;
  margin-top: 4px;
  min-height: 30px;
}

.btn-toggle-quote:hover {
  color: var(--primary-hover);
  text-decoration: underline;
}

.btn-inspect-quote {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 11px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 5px;
}

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

/* Student Notes Box */
.student-notes-box {
  margin-top: 4px;
  padding: 8px 10px;
  background: rgba(59, 130, 246, 0.08);
  border: 1px solid var(--primary-border);
  border-left: 3.5px solid var(--primary);
  border-radius: 0 8px 8px 0;
}

.student-notes-header {
  font-size: 10.5px;
  font-weight: 700;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-bottom: 2px;
}

.student-notes-body {
  font-size: 12px;
  color: var(--text-main);
  white-space: pre-wrap;
  line-height: 1.45;
}

/* Card Action Buttons */
.task-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-top: 6px;
  padding-top: 8px;
  border-top: 1px solid var(--surface-border);
}

.btn-card-action {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  font-weight: 600;
  padding: 5px 10px;
  border-radius: 6px;
  border: 1px solid var(--surface-border);
  background: var(--surface);
  color: var(--text-muted);
  text-decoration: none;
  cursor: pointer;
  transition: all 0.15s;
  min-height: 32px;
}

.btn-card-action:hover, .btn-card-action:active {
  background: #f1f5f9;
  color: var(--text-main);
  border-color: var(--surface-border-strong);
}

.btn-card-action.btn-gcal {
  color: var(--text-main);
  background: var(--surface-hover);
  border-color: var(--surface-border-strong);
}

.btn-card-action.btn-gcal:hover {
  background: var(--surface-border);
}

/* ==========================================================================
   VIEW 3: Schedule & Syllabus Cards (matches extension)
   ========================================================================== */
.info-card {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 12px;
  padding: 14px 16px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 12px;
}

.info-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.info-card-title-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-icon {
  font-size: 16px;
}

.info-card-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-main);
}

.info-badge {
  font-size: 10.5px;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: var(--radius-full);
}

.info-badge.green {
  background: #d1fae5;
  color: #065f46;
}

.info-badge.blue {
  background: var(--surface-hover);
  color: var(--text-main);
  border: 1px solid var(--surface-border);
}

.info-card-desc {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.45;
  margin-bottom: 10px;
}

.schedule-timeline {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.schedule-row {
  background: var(--surface-hover);
  border: 1px solid var(--surface-border);
  border-left-width: 4px;
  border-radius: 8px;
  padding: 10px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.schedule-course-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.schedule-course-name {
  font-size: 12.5px;
  font-weight: 700;
  color: var(--text-main);
}

.schedule-days-badge {
  font-size: 11px;
  color: var(--text-muted);
}

.schedule-time-badge {
  font-size: 11.5px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-light);
  padding: 3px 8px;
  border-radius: 6px;
  white-space: nowrap;
}

.syllabus-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.syllabus-item-card {
  background: var(--surface-hover);
  border: 1px solid var(--surface-border);
  border-radius: 8px;
  padding: 10px 12px;
}

.syllabus-item-title {
  font-size: 12.5px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 4px;
}

.syllabus-item-details {
  font-size: 11.5px;
  color: var(--text-muted);
  line-height: 1.45;
}

/* ==========================================================================
   VIEW 4: Cloud Settings, Push Alerts & WebCal
   ========================================================================== */
.settings-card {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 12px;
  padding: 14px 16px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 12px;
}

.settings-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 10px;
}

.settings-icon-title {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.settings-card-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-main);
}

.settings-card-subtitle {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 2px;
}

.settings-card-desc {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.45;
  margin-bottom: 10px;
}

/* Toggle Switch */
.toggle-control-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--surface-hover);
  border: 1px solid var(--surface-border);
  padding: 10px 12px;
  border-radius: 8px;
  margin-bottom: 10px;
  min-height: 48px;
}

.toggle-text-block {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.toggle-main-label {
  font-size: 12.5px;
  font-weight: 700;
  color: var(--text-main);
}

.toggle-status-desc {
  font-size: 11px;
  color: var(--text-muted);
}

.switch {
  position: relative;
  display: inline-block;
  width: 48px;
  height: 26px;
  flex-shrink: 0;
}

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

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #cbd5e1;
  transition: .25s;
}

.slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 4px;
  bottom: 4px;
  background-color: white;
  transition: .25s;
  box-shadow: 0 1px 3px rgba(0,0,0,0.15);
}

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

input:checked + .slider:before {
  transform: translateX(22px);
}

.slider.round {
  border-radius: 34px;
}

.slider.round:before {
  border-radius: 50%;
}

.notification-timing-notes {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 11.5px;
  color: var(--text-main);
  background: var(--surface-hover);
  border: 1px solid var(--surface-border);
  padding: 10px 12px;
  border-radius: 8px;
  margin-bottom: 10px;
}

.timing-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  line-height: 1.45;
}

.timing-bullet {
  font-size: 11.5px;
  flex-shrink: 0;
}

/* Action Buttons */
.card-action-bar {
  display: flex;
  gap: 8px;
}

.calendar-action-buttons {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 10px;
}

.btn-primary-action {
  min-height: 40px;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: var(--primary);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  font-size: 12.5px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.18);
  transition: all 0.15s ease;
}

[data-theme="dark"] .btn-primary-action {
  background: #f4f4f6;
  color: #111114;
  border-color: transparent;
}

.btn-primary-action:hover, .btn-primary-action:active {
  background: var(--primary-hover);
  transform: translateY(-1px);
}
[data-theme="dark"] .btn-primary-action:hover,
[data-theme="dark"] .btn-primary-action:active {
  background: #ffffff;
}

.btn-outline-action {
  min-height: 40px;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 8px;
  color: var(--text-main);
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-outline-action:hover, .btn-outline-action:active {
  background: var(--surface-hover);
  border-color: var(--surface-border-strong);
}

.feed-url-display {
  background: var(--surface-hover);
  border: 1px solid var(--surface-border);
  border-radius: 8px;
  padding: 10px 12px;
  margin-bottom: 10px;
}

.feed-url-label {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-subtle);
  display: block;
  margin-bottom: 4px;
}

.feed-url-code {
  font-size: 11px;
  font-family: monospace;
  color: var(--primary);
  word-break: break-all;
  line-height: 1.4;
}

.instructions-details {
  border-top: 1px solid var(--surface-border);
  padding-top: 8px;
  margin-top: 8px;
}

.instructions-summary {
  font-size: 11.5px;
  font-weight: 600;
  color: var(--text-main);
  cursor: pointer;
  padding: 5px 0;
}

.instructions-content {
  padding: 6px 0;
  font-size: 11.5px;
  color: var(--text-muted);
}

.steps-list {
  padding-left: 16px;
  display: flex;
  flex-direction: column;
  gap: 5px;
  line-height: 1.45;
}

.sync-metrics {
  display: flex;
  flex-direction: column;
  gap: 6px;
  background: var(--surface-hover);
  border: 1px solid var(--surface-border);
  padding: 10px 12px;
  border-radius: 8px;
  margin-bottom: 10px;
}

.metric-row {
  display: flex;
  justify-content: space-between;
  font-size: 11.5px;
}

.metric-label {
  color: var(--text-muted);
}

.metric-val {
  font-weight: 600;
  color: var(--text-main);
}

/* ==========================================================================
   DAY DRAWER (Bottom Sheet)
   ========================================================================== */
.day-sheet-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(2px);
  z-index: 90;
  transition: opacity 0.2s ease;
}

.day-sheet-backdrop.hidden {
  display: none;
  opacity: 0;
}

.day-sheet-drawer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  max-width: 580px;
  margin: 0 auto;
  background: var(--surface);
  border-top: 1px solid var(--surface-border);
  border-radius: 18px 18px 0 0;
  z-index: 100;
  padding: 14px 16px calc(20px + var(--safe-bottom));
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
  transform: translateY(0);
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.day-sheet-drawer.hidden {
  display: none;
  transform: translateY(100%);
}

.day-sheet-drag-handle {
  display: flex;
  justify-content: center;
  padding-bottom: 8px;
}

.drag-pill {
  width: 36px;
  height: 4px;
  background: var(--surface-border-strong);
  border-radius: 2px;
}

.day-sheet-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
  border-bottom: 1px solid var(--surface-border);
  padding-bottom: 8px;
}

.day-sheet-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
}

.day-sheet-count {
  font-size: 11.5px;
  color: var(--text-muted);
  display: block;
  margin-top: 1px;
}

.btn-icon-close {
  width: 28px;
  height: 28px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface-hover);
  border: 1px solid var(--surface-border);
  border-radius: 50%;
  color: var(--text-muted);
  font-size: 13px;
  cursor: pointer;
  transition: all 0.15s ease;
  touch-action: manipulation;
}

.btn-icon-close::after {
  content: '';
  position: absolute;
  inset: -7px;
}

.btn-icon-close:hover {
  background: var(--surface-border);
  color: var(--text-main);
}

.day-sheet-items {
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-right: 2px;
}

/* Empty, Loading, Error States */
.state-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 32px 16px;
  color: var(--text-muted);
}

.state-icon {
  font-size: 32px;
  margin-bottom: 8px;
}

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

.state-desc {
  font-size: 12px;
  color: var(--text-muted);
  max-width: 280px;
  line-height: 1.4;
}

/* Toast Alerts */
.toast-container {
  position: fixed;
  bottom: calc(20px + var(--safe-bottom));
  left: 16px;
  right: 16px;
  max-width: 380px;
  margin: 0 auto;
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.toast {
  background: #18181b;
  border: 1px solid #3f3f46;
  color: #f4f4f6;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 12.5px;
  font-weight: 500;
  box-shadow: var(--shadow-md);
  pointer-events: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  animation: toastIn 0.2s ease-out;
}

.toast-btn-action {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #f4f4f6;
  font-weight: 700;
  font-size: 11.5px;
  padding: 4px 10px;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.15s ease;
  flex-shrink: 0;
}

.toast-btn-action:hover {
  background: rgba(255, 255, 255, 0.2);
  color: #ffffff;
}

@keyframes toastIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   Action Bars & Modals (Bi-directional editing)
   ========================================================================== */
.day-sheet-action-row {
  margin-bottom: 10px;
}

.btn-day-add {
  width: 100%;
  min-height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: var(--surface-hover);
  border: 1px solid var(--surface-border-strong);
  border-radius: 8px;
  color: var(--text-main);
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-day-add:hover {
  background: var(--surface-border);
}

.btn-card-action.btn-card-edit {
  color: #475569;
}

.btn-card-action.btn-card-edit:hover {
  background: #f1f5f9;
  color: #0f172a;
}

[data-theme="dark"] .btn-card-action.btn-card-edit {
  color: var(--text-main);
  background: var(--surface-hover);
  border-color: var(--surface-border);
}

[data-theme="dark"] .btn-card-action.btn-card-edit:hover {
  background: #2c2c34;
  color: #ffffff;
  border-color: var(--surface-border-strong);
}

/* Modals */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.55);
  backdrop-filter: blur(2px);
  z-index: 150;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.modal-backdrop.hidden {
  display: none;
}

.modal-card {
  background: var(--surface);
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
  max-width: 500px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  padding: 18px 18px calc(20px + var(--safe-bottom));
  animation: modalIn 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalIn {
  from { opacity: 0; transform: scale(0.96) translateY(8px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--surface-border);
}

.modal-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
}

.btn-modal-close {
  width: 28px;
  height: 28px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f1f5f9;
  border: 1px solid var(--surface-border);
  border-radius: 50%;
  color: var(--text-muted);
  font-size: 13px;
  cursor: pointer;
  transition: all 0.15s ease;
  touch-action: manipulation;
}

.btn-modal-close::after {
  content: '';
  position: absolute;
  inset: -7px;
}

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

.modal-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.form-row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.form-label {
  font-size: 11.5px;
  font-weight: 600;
  color: var(--text-main);
}

.form-input, .form-select, .form-textarea {
  min-height: 38px;
  padding: 7px 10px;
  font-family: inherit;
  font-size: 12.5px;
  color: var(--text-main);
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 8px;
  outline: none;
  transition: border-color 0.15s;
}

.form-textarea {
  min-height: 65px;
  resize: vertical;
  line-height: 1.45;
}

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

.modal-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px solid var(--surface-border);
}

.modal-footer-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-save-action {
  min-height: 38px;
  padding: 0 16px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 2px 4px rgba(37, 99, 235, 0.2);
  transition: all 0.15s ease;
}

.btn-save-action:hover {
  background: var(--primary-hover);
}

[data-theme="dark"] .btn-save-action {
  background: #f4f4f6;
  color: #111114 !important;
}

[data-theme="dark"] .btn-save-action:hover {
  background: #ffffff;
}

.btn-secondary-action {
  min-height: 38px;
  padding: 0 14px;
  background: #f1f5f9;
  color: var(--text-main);
  border: 1px solid var(--surface-border);
  border-radius: 8px;
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-secondary-action:hover {
  background: var(--surface-hover);
}

.btn-danger-action {
  min-height: 38px;
  padding: 0 12px;
  background: #fee2e2;
  color: #b91c1c;
  border: 1px solid #fecaca;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-danger-action:hover {
  background: #fecaca;
}

/* ==========================================================================
   Room Pill & Quick Selector
   ========================================================================== */
.room-pill-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  border-radius: 6px;
  background: var(--surface-hover);
  color: var(--text-main);
  border: 1px solid var(--surface-border-strong);
  font-size: 11.5px;
  font-weight: 600;
  cursor: pointer;
  min-height: 30px;
  transition: all 0.15s ease;
}

.room-pill-btn:hover, .room-pill-btn:focus-visible {
  background: var(--surface-border);
  color: var(--text-main);
  border-color: var(--text-muted);
  outline: 2px solid var(--primary);
  outline-offset: 1px;
}

.room-edit-hint {
  font-size: 10px;
  opacity: 0.8;
}

/* ==========================================================================
   Deadlines Layout
   ========================================================================== */
.deadlines-split-layout {
  display: flex;
  flex-direction: column;
  gap: 14px;
  width: 100%;
}

.deadlines-reading-col {
  display: none !important;
}

/* Reading Pane Styling */
.reading-pane-card {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 12px;
  padding: 16px 18px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.reading-pane-card.is-empty {
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 36px 20px;
  color: var(--text-muted);
}

.reading-pane-top-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
}

.reading-pane-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.35;
}

.reading-meta-section {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  padding: 10px 12px;
  background: var(--surface-hover);
  border: 1px solid var(--surface-border);
  border-radius: 8px;
}

.reading-announcement-box {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.reading-box-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.reading-box-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 5px;
}

.btn-copy-announcement {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 6px;
  padding: 5px 10px;
  font-size: 11.5px;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  min-height: 32px;
  transition: all 0.15s ease;
}

.btn-copy-announcement:hover {
  background: var(--surface-hover);
  color: var(--text-main);
  border-color: var(--surface-border-strong);
}

.reading-box-content {
  background: var(--surface-hover);
  border: 1px solid var(--surface-border);
  border-radius: 8px;
  padding: 12px 14px;
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--text-main);
  white-space: pre-line;
  word-break: break-word;
}

.reading-actions-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  padding-top: 10px;
  border-top: 1px solid var(--surface-border);
}

/* Mobile Reading Sheet */
.reading-sheet-modal-card {
  max-width: 580px;
  width: 100%;
}

.reading-modal-badge-group {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.reading-modal-body {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 8px;
}

/* Room Picker Modal */
.room-picker-modal-card {
  max-width: 460px;
  width: 100%;
}

.room-picker-instruction {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.room-presets-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 12px;
}

.room-preset-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  background: #f8fafc;
  border: 1px solid var(--surface-border);
  border-radius: 8px;
  cursor: pointer;
  text-align: left;
  min-height: 40px;
  transition: all 0.15s ease;
}

.room-preset-btn:hover {
  background: var(--surface-hover);
  border-color: var(--surface-border-strong);
}

.room-preset-btn.is-active {
  background: var(--surface-hover);
  border-color: var(--primary);
  color: var(--text-main);
  font-weight: 700;
}

.room-preset-left {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.room-preset-code {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-main);
}

.room-preset-course {
  font-size: 11px;
  color: var(--text-muted);
}

.room-custom-wrapper {
  padding-top: 10px;
  border-top: 1px solid var(--surface-border);
}

.room-custom-input-row {
  display: flex;
  gap: 8px;
  margin-top: 6px;
}

.room-custom-input-row .form-input {
  flex: 1;
}

/* ==========================================================================
   AI / Jev Announcement Extractor & Auto-Weight Styles
   ========================================================================== */
.extract-modal-card {
  max-width: 540px;
  width: 95%;
  max-height: 90vh;
  overflow-y: auto;
}

.extract-status-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 11.5px;
  font-weight: 600;
  line-height: 1.4;
}

.extract-status-pill.loading {
  background: var(--surface-hover);
  border: 1px solid var(--surface-border-strong);
  color: var(--text-main);
}

.extract-status-pill.success {
  background: #ecfdf5;
  border: 1px solid #a7f3d0;
  color: #065f46;
}

.extract-status-pill.rejected {
  background: #fffbeb;
  border: 1px solid #fde68a;
  color: #92400e;
}

.extract-status-pill.error {
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: #991b1b;
}

.extract-result-item {
  background: #ffffff;
  border: 1px solid var(--surface-border);
  border-radius: 12px;
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.15s ease;
}

.extract-result-item:hover {
  border-color: var(--surface-border-strong);
}

.extract-result-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
}

.extract-result-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-main);
}

.extract-result-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.extract-result-desc {
  font-size: 12.5px;
  color: var(--text-muted);
  line-height: 1.5;
}

.badge-jev-tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: var(--radius-full);
  background: var(--surface-hover);
  color: var(--text-main);
  border: 1px solid var(--surface-border);
}

.badge-weight-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: var(--radius-full);
  background: #d1fae5;
  color: #065f46;
}

.badge-room-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: var(--radius-full);
  background: var(--surface-hover);
  border: 1px solid var(--surface-border);
  color: var(--text-muted);
}

/* ==========================================================================
   Mobile Icon-Only & Responsive Text Rules
   ========================================================================== */
.calendar-grid {
  touch-action: pan-y pinch-zoom;
  user-select: none;
}

@media (max-width: 480px) {
  /* On small mobile screens, prioritize icons and condense text labels */
  .btn-responsive-label.hide-on-mobile {
    display: none;
  }
}

@media (max-width: 380px) {
  /* Very small screens: hide longer text labels in action buttons */
  .btn-responsive-label {
    display: none;
  }
  .deadlines-action-bar button {
    padding: 10px 4px !important;
  }
}

/* ==========================================================================
   Academic Quick Links (Bar, Chips, Cards, Modal)
   ========================================================================== */
.calendar-quick-links-bar {
  margin: 12px 0;
  padding: 12px 14px;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.quick-links-bar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.quick-links-bar-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 5px;
}

.btn-xs-manage-links {
  font-size: 11.5px;
  font-weight: 600;
  color: var(--text-main);
  background: var(--surface-hover);
  border: 1px solid var(--surface-border-strong);
  border-radius: var(--radius-sm);
  padding: 4px 10px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  transition: all 0.15s ease;
  min-height: 28px;
  touch-action: manipulation;
}

.btn-xs-manage-links:hover {
  background: var(--surface-border);
}

.quick-links-chips-row {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
  -webkit-overflow-scrolling: touch;
}

.ql-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-main);
  background: var(--surface-hover);
  border: 1px solid var(--surface-border);
  border-radius: 9999px;
  padding: 6px 12px;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
  min-height: 32px;
  touch-action: manipulation;
}

.ql-chip:hover {
  background: var(--surface-hover);
  border-color: var(--surface-border-strong);
  color: var(--text-main);
  transform: translateY(-1px);
}

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

.ql-chip-external-icon {
  width: 12px;
  height: 12px;
  color: var(--text-muted);
  flex-shrink: 0;
  opacity: 0.7;
}

/* Category tokens */
.ql-cat-attendance { --cat-color: #0284c7; --cat-bg: #e0f2fe; }
.ql-cat-study_plan { --cat-color: #059669; --cat-bg: #d1fae5; }
.ql-cat-marks { --cat-color: #7c3aed; --cat-bg: #ede9fe; }
.ql-cat-portal { --cat-color: #d97706; --cat-bg: #fef3c7; }
.ql-cat-other { --cat-color: #475569; --cat-bg: #f1f5f9; }

.quick-links-modal-card {
  max-width: 480px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
}

.ql-item-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 14px;
  border-radius: 10px;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  transition: all 0.15s ease;
}

.ql-item-card:hover {
  border-color: var(--surface-border-strong);
  background: var(--surface-hover);
}

.ql-item-left {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  flex: 1;
}

.ql-item-icon-box {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 15px;
}

.ql-item-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.ql-item-title-row {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  min-width: 0;
}

.ql-item-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.35;
}

.ql-category-badge {
  font-size: 10px;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 4px;
  white-space: nowrap;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.ql-item-url {
  font-size: 11.5px;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-family: monospace;
}

.ql-item-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

@media (max-width: 520px) {
  .ql-item-card {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    padding: 11px 12px;
  }
  .ql-item-actions {
    justify-content: flex-end;
    padding-top: 8px;
    border-top: 1px solid var(--surface-border);
    width: 100%;
  }
}

.btn-ql-open {
  font-size: 12px;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 6px;
  background: var(--primary);
  color: #ffffff;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  text-decoration: none;
  transition: all 0.12s ease;
  min-height: 32px;
}

.btn-ql-open:hover {
  background: var(--primary-hover);
}

[data-theme="dark"] .btn-ql-open {
  background: #f4f4f6;
  color: #111114 !important;
}

[data-theme="dark"] .btn-ql-open:hover {
  background: #ffffff;
}

.btn-ql-action {
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  border: 1px solid var(--surface-border);
  background: var(--surface);
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.12s ease;
  touch-action: manipulation;
}

.btn-ql-action:hover {
  background: var(--surface-hover);
  color: var(--text-main);
  border-color: var(--surface-border-strong);
}

.btn-ql-action.delete:hover {
  color: var(--danger);
  border-color: #fca5a5;
  background: #fef2f2;
}

/* Dark mode overrides */
[data-theme="dark"] .calendar-quick-links-bar {
  background: var(--surface);
  border-color: var(--surface-border);
}
[data-theme="dark"] .btn-xs-manage-links {
  background: #24242b;
  border-color: var(--surface-border-strong);
  color: var(--text-main);
}
[data-theme="dark"] .btn-xs-manage-links:hover {
  background: #2c2c34;
}
[data-theme="dark"] .ql-chip {
  background: var(--surface);
  border-color: var(--surface-border);
  color: var(--text-main);
}
[data-theme="dark"] .ql-chip:hover {
  background: var(--surface-hover);
  border-color: var(--surface-border-strong);
  color: #ffffff;
}
[data-theme="dark"] .ql-item-card {
  background: var(--surface);
  border-color: var(--surface-border);
}
[data-theme="dark"] .ql-item-card:hover {
  background: var(--surface-hover);
  border-color: var(--surface-border-strong);
}
[data-theme="dark"] .btn-ql-action {
  background: var(--surface-hover);
  border-color: var(--surface-border);
  color: var(--text-muted);
}
[data-theme="dark"] .btn-ql-action:hover {
  background: #2c2c34;
  border-color: var(--surface-border-strong);
  color: #ffffff;
}
[data-theme="dark"] .btn-ql-action.delete:hover {
  background: rgba(239, 68, 68, 0.2);
  color: #f87171;
  border-color: rgba(239, 68, 68, 0.4);
}

/* ==========================================================================
   Setup Guide & Onboarding Walkthrough Modal
   ========================================================================== */
.btn-setup-guide {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px 11px;
  border-radius: 8px;
  font-size: 11.5px;
  font-weight: 600;
  background: var(--surface-hover);
  color: var(--text-main);
  border: 1px solid var(--surface-border);
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.btn-setup-guide:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.btn-setup-guide .ui-icon {
  width: 14px;
  height: 14px;
  color: var(--primary);
}

@media (max-width: 480px) {
  .btn-setup-guide .setup-guide-label {
    display: none;
  }
  .btn-setup-guide {
    padding: 7px;
  }
}

.onboarding-modal-card {
  max-width: 580px;
  width: 100%;
}

.onboarding-header {
  border-bottom: 1px solid var(--surface-border);
  padding-bottom: 12px;
  margin-bottom: 14px;
}

.onboarding-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: rgba(99, 102, 241, 0.12);
  color: var(--primary);
  padding: 2.5px 8px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 700;
  margin-bottom: 4px;
}

.onboarding-badge .ui-icon {
  width: 12px;
  height: 12px;
}

.onboarding-stepper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 4px;
  padding: 8px 12px;
  background: var(--surface-hover);
  border-radius: 10px;
  border: 1px solid var(--surface-border);
  margin-bottom: 16px;
}

.step-indicator {
  display: flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 11.5px;
  font-weight: 600;
  padding: 4px 8px;
  border-radius: 6px;
  transition: all 0.15s ease;
}

.step-indicator:hover {
  color: var(--text-main);
}

.step-indicator.active {
  color: var(--primary);
  background: rgba(99, 102, 241, 0.12);
}

.step-indicator.completed {
  color: #10b981;
}

.step-num {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10.5px;
  font-weight: 700;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  color: inherit;
}

.step-indicator.active .step-num {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
}

.step-indicator.completed .step-num {
  background: #10b981;
  color: #ffffff;
  border-color: #10b981;
}

.step-divider {
  flex: 1;
  height: 1px;
  background: var(--surface-border);
  min-width: 6px;
}

.onboarding-step-pane {
  display: none;
}

.onboarding-step-pane.active {
  display: block;
  animation: fadeIn 0.18s ease;
}

.onboarding-step-hero {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--surface-border);
}

.step-hero-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: rgba(99, 102, 241, 0.1);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.step-hero-icon .ui-icon {
  width: 20px;
  height: 20px;
}

.step-hero-title {
  font-size: 14.5px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 3px;
}

.step-hero-desc {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.45;
  margin: 0;
}

.onboarding-instructions-list {
  padding-left: 20px;
  margin-bottom: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--text-main);
}

.onboarding-instructions-list li {
  margin: 0;
}

.onboarding-instructions-list code {
  background: var(--surface-hover);
  border: 1px solid var(--surface-border);
  padding: 1.5px 5.5px;
  border-radius: 4px;
  font-family: monospace;
  font-size: 11px;
  color: var(--primary);
}

.onboarding-note-box {
  display: flex;
  gap: 8px;
  align-items: flex-start;
  background: var(--surface-hover);
  border: 1px solid var(--surface-border);
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 11.5px;
  line-height: 1.45;
  color: var(--text-main);
}

.onboarding-note-box .ui-icon {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
  color: var(--primary);
  margin-top: 1px;
}

.onboarding-pairing-card {
  background: var(--surface-hover);
  border: 1px solid var(--surface-border);
  padding: 14px;
  border-radius: 10px;
  margin-bottom: 14px;
}

.onboarding-inline-pair-form {
  display: flex;
  gap: 8px;
  margin-top: 6px;
}

.onboarding-pairing-status {
  margin-top: 8px;
  font-size: 12px;
  font-weight: 600;
  min-height: 16px;
}

.onboarding-feature-grid {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 14px;
}

.onboarding-feature-item {
  background: var(--surface-hover);
  border: 1px solid var(--surface-border);
  border-radius: 10px;
  padding: 12px 14px;
}

.feature-item-title {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 4px;
}

.feature-item-title .ui-icon {
  width: 16px;
  height: 16px;
  color: var(--primary);
}

.onboarding-feature-item p {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.45;
  margin: 0;
}

.onboarding-footer {
  display: flex;
  align-items: center;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--surface-border);
  gap: 8px;
}

[data-theme="dark"] .onboarding-badge {
  background: rgba(99, 102, 241, 0.2);
}

[data-theme="dark"] .step-hero-icon {
  background: rgba(99, 102, 241, 0.2);
}