:root {
  --primary-color: #0065BD;
  --primary-hover: #005299;
  --bg-color: #f8f9fa;
  --card-bg: #ffffff;
  --border-color: #e9ecef;
  --text-primary: #1a1a1a;
  --text-secondary: #6c757d;
  --accent-blue: #0065BD;
  --accent-purple: #6f42c1;
  --success: #28a745;
  --warning: #ffc107;
  --holiday-bg: #fff5f5;
  --bonus-bg: #f3f0ff;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-primary);
  min-height: 100vh;
  padding: 20px;
  line-height: 1.5;
}

.container {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  animation: fadeIn 0.6s ease-out;
}

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

header {
  text-align: left;
  margin-bottom: 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

h1 {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--primary-color);
  letter-spacing: -0.02em;
}

p.subtitle {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 24px;
  margin-bottom: 20px;
  box-shadow: var(--shadow);
}

/* Form Styles */
.input-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-bottom: 24px;
}

.input-group {
  margin-bottom: 0;
}

label {
  display: block;
  margin-bottom: 6px;
  color: var(--text-primary);
  font-size: 0.85rem;
  font-weight: 600;
}

/* Month Tabs */
.month-tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: none; /* Hide scrollbar for Firefox */
}
.month-tabs::-webkit-scrollbar {
  display: none; /* Hide scrollbar for Chrome/Safari */
}
.month-tab {
  padding: 6px 14px;
  border-radius: 20px;
  background: var(--bg-color);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s ease;
}
.month-tab:hover {
  background: #e9ecef;
}
.month-tab.active {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
  box-shadow: 0 4px 6px rgba(0, 101, 189, 0.2);
}

input[type="text"], input[type="url"], input[type="time"], select, textarea {
  width: 100%;
  padding: 10px 14px;
  background: #fff;
  border: 1px solid #ced4da;
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 0.9rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(0, 101, 189, 0.1);
}

.custom-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%236c757d'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 16px;
  padding-right: 40px !important;
  cursor: pointer;
}

.btn {
  padding: 10px 20px;
  border: none;
  border-radius: 8px;
  background: var(--primary-color);
  color: #fff;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 101, 189, 0.2);
}

.btn.secondary {
  background: #f1f3f5;
  color: #495057;
  border: 1px solid #dee2e6;
}

.btn.secondary:hover {
  background: #e9ecef;
}

.btn.success {
  background: var(--success);
  color: #fff;
}

.btn.success:hover {
  background: #218838;
}

.btn.warning {
  background: var(--warning);
  color: #856404;
}

.btn.warning:hover {
  background: #e0a800;
}

.btn.small {
  padding: 6px 12px;
  font-size: 0.75rem;
}

.lecture-bulk-actions {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

/* Days Selector */
.days-selector {
  display: flex;
  gap: 6px;
}

.day-check {
  flex: 1;
}

.day-check input {
  display: none;
}

.day-check span {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 36px;
  background: #f1f3f5;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  color: #495057;
  cursor: pointer;
  transition: all 0.2s;
}

.day-check input:checked + span {
  background: var(--primary-color);
  color: #fff;
}

.day-check.highlight input:checked + span {
  background: var(--accent-purple);
}

/* Calendar Grid Layout */
.calendar-view {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.week-row {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 12px;
}

@media (max-width: 1024px) {
  .week-row {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  }
}

.week-title {
  grid-column: 1 / -1;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
  padding-left: 4px;
  border-left: 3px solid var(--primary-color);
}

.day-card {
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 12px;
  min-height: 120px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: transform 0.2s, box-shadow 0.2s;
}

.day-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.day-card.disabled {
  background: #f8f9fa;
  opacity: 0.6;
}

.day-card.holiday {
  background: var(--holiday-bg);
  border-color: #ffc9c9;
}

.day-card.bonus {
  background: var(--bonus-bg);
  border-color: #dcd3ff;
}

.day-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 4px;
}

.day-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-secondary);
}

.day-number {
  font-size: 1.1rem;
  font-weight: 800;
}

.status-dots {
  display: flex;
  gap: 4px;
}

.dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary-color);
}

.dot.bonus { background: var(--accent-purple); }
.dot.holiday { background: #fa5252; }

/* Month Section */
.month-section {
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 24px;
  margin-bottom: 32px;
  box-shadow: var(--shadow);
}

.month-header {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--primary-color);
  margin-bottom: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* Collapsible Week */
.week-collapsible {
  margin-bottom: 16px;
  border: 1px solid #f1f3f5;
  border-radius: 12px;
  overflow: hidden;
}

.week-summary {
  list-style: none;
  padding: 12px 20px;
  background: #f8f9fa;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
  transition: background 0.2s;
}

.week-summary:hover {
  background: #e9ecef;
}

.week-summary::-webkit-details-marker {
  display: none;
}

.week-title {
  font-weight: 700;
  font-size: 1rem;
  color: #495057;
}

.week-meta {
  display: flex;
  align-items: center;
  gap: 16px;
}

.week-stat {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: #fff;
  padding: 4px 10px;
  border-radius: 6px;
  border: 1px solid #e9ecef;
}

.week-stat.hours {
  color: var(--primary-color);
  background: rgba(0, 101, 189, 0.05);
  border-color: rgba(0, 101, 189, 0.1);
}

.week-stat.selected {
  color: var(--success);
  background: rgba(40, 167, 69, 0.08);
  border-color: rgba(40, 167, 69, 0.15);
  font-weight: 700;
}

.expand-icon {
  font-size: 1.2rem;
  transition: transform 0.3s;
  color: var(--text-secondary);
}

.week-collapsible[open] .expand-icon {
  transform: rotate(180deg);
}

.week-row {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 12px;
  padding: 16px;
  background: #fff;
}

/* Day Card */
.day-card {
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  border: 1px solid #f1f3f5;
  border-radius: 12px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  background: #fff;
  position: relative;
  cursor: pointer;
  overflow: hidden;
}

.day-card.collapsed {
  min-height: 150px;
  max-height: 150px;
}

.day-card.expanded {
  grid-column: span 2;
  min-height: 200px;
  border-color: var(--primary-color);
  box-shadow: var(--shadow-lg);
}

.collapsed-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-top: 6px;
}

.day-card.expanded .collapsed-info {
  display: none;
}

.collapsed-slots {
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--primary-color);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.collapsed-lectures {
  font-size: 0.6rem;
  color: var(--text-secondary);
  font-style: italic;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.day-card:hover:not(.expanded) {
  border-color: var(--primary-color);
  transform: translateY(-2px);
}

.card-summary {
  display: none;
  margin-top: auto;
  padding-top: 4px;
}

.day-card.collapsed .card-summary {
  display: flex;
}

.expand-hint {
  font-size: 0.55rem;
  font-weight: 700;
  text-transform: uppercase;
  color: #adb5bd;
  letter-spacing: 0.5px;
}

.holiday-label {
  font-size: 0.65rem;
  font-weight: 800;
  color: #fff;
  background: #fa5252;
  padding: 3px 8px;
  border-radius: 20px;
  margin-top: 4px;
  display: inline-block;
  box-shadow: 0 2px 4px rgba(250, 82, 82, 0.2);
}

.holiday-label.overtime {
  background: var(--accent-purple);
  box-shadow: 0 2px 4px rgba(111, 66, 193, 0.2);
}

.day-card.holiday { 
  background: #fff5f5;
  border-left: 4px solid #fa5252; 
}
.day-card.bonus { 
  background: #f3f0ff;
  border-left: 4px solid var(--accent-purple); 
}

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

.day-label {
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.day-number {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text-primary);
}

.lectures-section {
  margin-bottom: 12px;
}

.day-lectures {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.lecture-mini {
  background: #f1f3f5;
  padding: 4px 6px;
  border-radius: 4px;
  font-size: 0.7rem;
  border-left: 3px solid var(--text-secondary);
}

.lecture-mini.private-event {
  background: rgba(108, 117, 125, 0.07);
  border-left-color: #adb5bd;
  opacity: 0.85;
}

.private-cal-entry {
  display: flex;
  gap: 8px;
  align-items: center;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 8px 10px;
}

.private-cal-entry input[type="url"] {
  flex: 1;
  min-width: 0;
}

.private-cal-entry .cal-label {
  width: 110px;
  flex-shrink: 0;
}

.remove-cal-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 1rem;
  padding: 2px 6px;
  border-radius: 4px;
  flex-shrink: 0;
}

.remove-cal-btn:hover { color: #dc3545; background: rgba(220,53,69,0.08); }

/* GSRM Section */
.gsrm-section {
  margin-top: 16px;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  background: var(--card-bg);
  overflow: hidden;
  transition: box-shadow 0.2s;
}
.gsrm-section[open] {
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}
.gsrm-section > summary {
  list-style: none;
  cursor: pointer;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  font-weight: 600;
  font-size: 0.92rem;
}
.gsrm-section > summary::-webkit-details-marker { display: none; }
.gsrm-section > summary::after {
  content: '▾';
  margin-left: 8px;
  color: var(--text-secondary);
  transition: transform 0.2s;
}
.gsrm-section[open] > summary::after { transform: rotate(180deg); }

.gsrm-title { display: inline-flex; align-items: center; gap: 8px; }
.optional-tag {
  background: rgba(108,117,125,0.12);
  color: var(--text-secondary);
  font-size: 0.65rem;
  font-weight: 500;
  padding: 2px 8px;
  border-radius: 10px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.gsrm-status-pill {
  font-size: 0.72rem;
  font-weight: 500;
  padding: 3px 10px;
  border-radius: 10px;
  background: rgba(108,117,125,0.12);
  color: var(--text-secondary);
}
.gsrm-status-pill.ok { background: rgba(40,167,69,0.14); color: #1e7e34; }
.gsrm-status-pill.err { background: rgba(220,53,69,0.14); color: #c82333; }
.gsrm-status-pill.warn { background: rgba(255,193,7,0.18); color: #b8860b; }
.gsrm-status-pill.loading { background: rgba(0,101,189,0.14); color: var(--primary-color); }

.gsrm-body {
  padding: 4px 16px 16px 16px;
  border-top: 1px solid var(--border-color);
  background: rgba(0,0,0,0.015);
}
.gsrm-hint {
  font-size: 0.78rem;
  color: var(--text-secondary);
  margin: 10px 0 12px 0;
  line-height: 1.5;
}
.gsrm-hint code {
  background: rgba(0,0,0,0.06);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 0.75rem;
}

.gsrm-result { margin-top: 10px; font-size: 0.82rem; }
.gsrm-result:empty { display: none; }
.gsrm-success {
  background: rgba(40,167,69,0.1);
  color: #1e7e34;
  padding: 8px 12px;
  border-radius: 6px;
  font-weight: 500;
}
.gsrm-error {
  background: rgba(220,53,69,0.1);
  color: #c82333;
  padding: 8px 12px;
  border-radius: 6px;
  font-weight: 500;
}
.gsrm-warn {
  background: rgba(255,193,7,0.12);
  color: #856404;
  padding: 8px 12px;
  border-radius: 6px;
}
.gsrm-info {
  background: rgba(0,101,189,0.08);
  color: var(--primary-color);
  padding: 8px 12px;
  border-radius: 6px;
}
.gsrm-shift-preview {
  list-style: none;
  padding: 10px 12px;
  margin: 8px 0 0 0;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-size: 0.78rem;
  color: var(--text-primary);
}
.gsrm-shift-preview li {
  padding: 4px 0;
  border-bottom: 1px solid var(--border-color);
}
.gsrm-shift-preview li:last-child { border-bottom: none; }

#gsrm-loader { display: none; vertical-align: middle; margin-left: 8px; }

.lecture-time-mini {
  font-weight: 700;
  display: block;
  color: var(--text-primary);
}

.lecture-name-mini {
  color: var(--text-secondary);
  white-space: normal;
  display: block;
  line-height: 1.3;
  margin-top: 2px;
}

.slots-container {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.slot-mini {
  background: rgba(0, 101, 189, 0.08);
  border-left: 3px solid var(--primary-color);
  padding: 6px 8px;
  border-radius: 4px;
  font-size: 0.75rem;
  display: flex;
  align-items: flex-start;
  gap: 6px;
  cursor: pointer;
  transition: background 0.15s, opacity 0.15s;
}

.slot-mini .slot-select {
  margin-top: 2px;
  cursor: pointer;
  flex-shrink: 0;
  accent-color: var(--primary-color);
}

.slot-mini .slot-body {
  flex: 1;
  min-width: 0;
}

.slot-mini:has(.slot-select:not(:checked)) {
  opacity: 0.45;
  background: rgba(108, 117, 125, 0.06);
  border-left-color: #adb5bd;
}

.slot-mini:hover { background: rgba(0, 101, 189, 0.14); }
.slot-mini.bonus:hover { background: rgba(111, 66, 193, 0.14); }

/* Selection bar */
.selection-bar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 10px 14px;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  margin: 12px 0;
  font-size: 0.85rem;
  flex-wrap: wrap;
}
.selection-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-weight: 500;
}
.selection-toggle input { accent-color: var(--primary-color); cursor: pointer; }
.selection-summary {
  font-weight: 600;
  color: var(--primary-color);
  background: rgba(0, 101, 189, 0.08);
  padding: 4px 10px;
  border-radius: 6px;
}
.selection-hint {
  margin-left: auto;
  color: var(--text-secondary);
  font-size: 0.75rem;
}

.slot-mini.bonus {
  background: rgba(111, 66, 193, 0.08);
  border-left-color: var(--accent-purple);
}

.slot-time {
  font-weight: 700;
  display: block;
}

.slot-duration {
  color: var(--text-secondary);
  font-size: 0.7rem;
}

.slot-transport {
  margin-top: 4px;
  font-size: 0.7rem;
  color: var(--primary-color);
  display: flex;
  align-items: center;
  gap: 4px;
  text-decoration: none;
}

.slot-transport:hover {
  text-decoration: underline;
}

/* Instructions */
.instructions {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 4px;
  padding-left: 10px;
  border-left: 2px solid #dee2e6;
}

/* Toggle */
.toggle-container {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
}

.toggle-container input {
  width: 18px;
  height: 18px;
}

/* Results Header */
.results-summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  background: #fff;
  padding: 16px 24px;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow);
}

.total-badge {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--primary-color);
}

.total-badge.goal {
  color: var(--success);
}

/* Lecture List */
.lecture-filter-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 12px;
  margin-top: 16px;
}

.lecture-filter-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px;
  background: #f8f9fa;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  cursor: pointer;
}

.lecture-filter-item:hover {
  background: #fff;
  border-color: var(--primary-color);
}

/* Loading */
.loading-spinner {
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: #fff;
  animation: spin 0.8s linear infinite;
  display: none;
}

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

.copy-toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: #1a1a1a;
  color: #fff;
  padding: 12px 24px;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 600;
  transition: transform 0.3s cubic-bezier(0.18, 0.89, 0.32, 1.28);
  z-index: 1000;
  box-shadow: 0 10px 25px rgba(0,0,0,0.2);
}

.copy-toast.show {
  transform: translateX(-50%) translateY(0);
}

@media (max-width: 900px) {
  .container {
    padding: 10px;
  }

  .month-header {
    font-size: 1.4rem;
  }
  
  .week-summary {
    padding: 10px;
  }
  
  .week-meta {
    gap: 8px;
  }
  
  .week-stat {
    font-size: 0.7rem;
    padding: 2px 6px;
  }
}

.btn.secondary {
  background: #fff;
  color: var(--primary-color);
  border: 2px solid var(--primary-color);
  padding: 8px 16px;
  font-size: 0.85rem;
}

.btn.secondary:hover {
  background: rgba(0, 101, 189, 0.05);
  transform: translateY(-2px);
}

.week-section {
  margin-bottom: 24px;
}

.week-header-static {
  padding: 12px 20px;
  background: #f8f9fa;
  border-radius: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  border: 1px solid var(--border-color);
}

.info-icon {
  font-size: 0.9rem;
  color: var(--primary-color);
  background: rgba(0, 101, 189, 0.1);
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: all 0.2s;
}

.day-card:hover .info-icon {
  background: var(--primary-color);
  color: #fff;
}

.btn.whatsapp {
  background: #25D366;
  color: #fff;
  border: none;
  padding: 8px 16px;
  font-size: 0.85rem;
}

.btn.whatsapp:hover {
  background: #128C7E;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(37, 211, 102, 0.3);
}

.holiday-label.lab {
  background: #f59f00;
  box-shadow: 0 2px 4px rgba(245, 159, 0, 0.2);
}

.collapsed-lectures {
  color: #fa5252;
  font-weight: 600;
}

.mandatory-star-toggle {
  cursor: pointer;
  font-size: 1.2rem;
  opacity: 0.3;
  transition: all 0.2s;
  padding: 4px;
  border-radius: 6px;
  user-select: none;
}

.mandatory-star-toggle:hover {
  background: rgba(0,0,0,0.05);
  opacity: 0.6;
}

.mandatory-star-toggle.active {
  opacity: 1;
  transform: scale(1.1);
  filter: drop-shadow(0 0 4px rgba(255, 193, 7, 0.4));
}

.star-icon {
  font-size: 0.9rem;
  margin-right: 4px;
}

.lecture-filter-item {
  position: relative;
  justify-content: space-between;
}

.holiday-label.mandatory {
  background: var(--primary-color);
  box-shadow: 0 2px 4px rgba(0, 101, 189, 0.2);
}

.mandatory-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  color: var(--text-secondary);
  cursor: pointer;
  margin-top: 4px;
}

.mandatory-toggle input {
  width: 14px;
  height: 14px;
}

.lecture-filter-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px;
  background: #f8f9fa;
  border: 1px solid var(--border-color);
  border-radius: 10px;
}

.attendance-check {
  margin-top: 4px;
  width: 18px;
  height: 18px;
}

.lecture-mini.mandatory {
  border-left-color: var(--primary-color);
  background: rgba(0, 101, 189, 0.05);
}

.mandatory-badge {
  font-size: 0.6rem;
  font-weight: 800;
  color: var(--primary-color);
  text-transform: uppercase;
  margin-top: 4px;
  display: block;
}

/* Responsive Overrides */
@media (max-width: 768px) {
  body {
    padding: 12px;
  }
  
  header {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    margin-bottom: 20px;
  }
  
  .results-summary {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    padding: 16px;
  }
  
  .results-summary > div:last-child {
    width: 100%;
    justify-content: flex-start;
  }

  .month-tabs {
    width: 100%;
    padding-bottom: 8px;
  }
  
  .btn {
    flex: 1;
    min-width: 120px;
    font-size: 0.8rem;
    padding: 8px 12px;
  }

  .day-card.expanded {
    grid-column: span 1;
  }
  
  .input-grid {
    grid-template-columns: 1fr;
  }
}

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

.calculating .total-badge {
  animation: pulse 1s infinite ease-in-out;
}