:root {
  --primary: #f0572a;
  --primary-light: #f47a53;
  --primary-dark: #e53f12;
  --primary-bg: rgba(240, 87, 42, 0.05);
  --primary-focus: rgba(240, 87, 42, 0.25);
  --secondary: #f43f5e;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --danger-hover: #dc2626;

  --timetable-color: #f0572a;
  --timetable-light: rgba(240, 87, 42, 0.12);
  --timetable-hover: rgba(240, 87, 42, 0.2);
  --assessment-color: #2563eb;
  --assessment-light: rgba(37, 99, 235, 0.12);
  --assessment-hover: rgba(37, 99, 235, 0.2);
  --quiz-color: #9333ea;
  --quiz-light: rgba(147, 51, 234, 0.12);
  --quiz-hover: rgba(147, 51, 234, 0.2);
  --exam-color: #ef4444;
  --exam-light: rgba(244, 63, 94, 0.12);
  --exam-hover: rgba(244, 63, 94, 0.2);

  --text-primary: #111827;
  --text-secondary: #4b5563;
  --text-tertiary: #9ca3af;
  --text-light: #f9fafb;

  --bg-primary: #ffffff;
  --bg-secondary: #f9fafb;
  --bg-tertiary: #f3f4f6;
  --bg-sidebar: #f9fafb;
  --bg-active: #e5e7eb;
  --bg-hover: rgba(229, 231, 235, 0.6);

  --border-light: #e5e7eb;
  --border-medium: #d1d5db;
  --border-focus: rgba(240, 87, 42, 0.4);

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05), 0 1px 1px rgba(0, 0, 0, 0.03);
  --shadow: 0 4px 6px -1px rgba(15, 23, 42, 0.1),
    0 2px 4px -2px rgba(15, 23, 42, 0.08);
  --shadow-md: 0 10px 15px -3px rgba(15, 23, 42, 0.1),
    0 4px 6px -4px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 20px 25px -5px rgba(15, 23, 42, 0.12),
    0 8px 10px -6px rgba(15, 23, 42, 0.08);
  --shadow-inner: inset 0 2px 4px 0 rgba(15, 23, 42, 0.05);
  --shadow-focus: 0 0 0 3px var(--border-focus);

  --radius-sm: 0.25rem;
  --radius: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

  --spacing-1: 0.25rem;
  --spacing-2: 0.5rem;
  --spacing-3: 0.75rem;
  --spacing-4: 1rem;
  --spacing-5: 1.25rem;
  --spacing-6: 1.5rem;
  --spacing-8: 2rem;
  --spacing-10: 2.5rem;
  --spacing-12: 3rem;

  --transition-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-enter: 250ms cubic-bezier(0.21, 1.02, 0.73, 1);
  --transition-exit: 150ms cubic-bezier(0.06, 0.71, 0.55, 1);

  --sidebar-width: 280px;
  --header-height: 70px;

  --font-sans: 'Plus Jakarta Sans';
}

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

html {
  font-size: 16px;
  height: 100%;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  color: var(--text-primary);
  background-color: var(--bg-secondary);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeSpeed;
  overflow-x: hidden;
  min-height: 100%;
}

button,
input {
  font-family: inherit;
  outline: none;
  font-size: inherit;
}

button {
  cursor: pointer;
  background-color: transparent;
  border: none;
}

:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--border-focus);
  border-radius: inherit;
  transition: box-shadow 0.2s ease;
}

button:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--border-focus);
}

button,
input[type='checkbox'],
.filter-checkbox {
  transition: transform 0.15s cubic-bezier(0.34, 1.56, 0.64, 1),
    background-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

button:active {
  transform: scale(0.97);
}

ul {
  list-style: none;
}

a {
  text-decoration: none;
  color: inherit;
}

::selection {
  background-color: var(--primary-light);
  color: white;
}

.app-wrapper {
  display: flex;
  min-height: 100vh;
  position: relative;
  background: linear-gradient(
    180deg,
    rgba(241, 245, 249, 0),
    rgba(241, 245, 249, 0.6)
  );
}

.sidebar {
  width: var(--sidebar-width);
  background-color: var(--bg-primary);
  border-right: 1px solid var(--border-light);
  height: 100vh;
  position: sticky;
  top: 0;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition);
  z-index: 50;
  will-change: transform;
  box-shadow: 1px 0 2px rgba(15, 23, 42, 0.03);
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-5) var(--spacing-6);
  border-bottom: 1px solid var(--border-light);
  background: linear-gradient(
    to bottom,
    var(--bg-primary),
    var(--bg-secondary)
  );
  position: sticky;
  top: 0;
  z-index: 5;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
}

.logo i {
  font-size: 1.625rem;
  color: var(--primary);
  filter: drop-shadow(0 2px 4px rgba(240, 87, 42, 0.25));
}

.logo h1 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.close-sidebar {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 1.25rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  width: 32px;
  height: 32px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
}

.close-sidebar:hover {
  color: var(--text-primary);
  background-color: var(--bg-hover);
}

.sidebar-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: var(--spacing-6);
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--border-medium) transparent;
  overscroll-behavior: contain;
}

.sidebar-content::-webkit-scrollbar {
  width: 5px;
}

.sidebar-content::-webkit-scrollbar-track {
  background: transparent;
  border-radius: 10px;
}

.sidebar-content::-webkit-scrollbar-thumb {
  background-color: var(--border-medium);
  border-radius: var(--radius-full);
  transition: background-color 0.3s ease;
}

.sidebar-content:hover::-webkit-scrollbar-thumb {
  background-color: var(--text-tertiary);
}

.user-profile {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  margin-bottom: var(--spacing-4);
  padding: var(--spacing-2);
  border-radius: var(--radius);
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.user-profile:hover {
  background-color: var(--bg-tertiary);
}

.avatar {
  width: 42px;
  height: 42px;
  background: linear-gradient(145deg, var(--primary), var(--primary-dark));
  color: white;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(240, 87, 42, 0.25);
  position: relative;
  overflow: hidden;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
  letter-spacing: -0.02em;
}

.avatar::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(rgba(255, 255, 255, 0.15), transparent);
  border-radius: inherit;
}

.user-info h3 {
  font-size: 0.8925rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.user-info p {
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.view-selector {
  margin-bottom: var(--spacing-8);
  padding: var(--spacing-1);
  background-color: var(--bg-tertiary);
  border-radius: var(--radius);
}

.view-selector h3 {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-3);
  margin-top: var(--spacing-1);
  padding: 0 var(--spacing-2);
}

.view-options {
  display: flex;
  gap: var(--spacing-2);
  padding: var(--spacing-1);
}

.view-options button {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-1);
  padding: var(--spacing-3) var(--spacing-2);
  background-color: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  transform-origin: center;
}

.view-options button i {
  font-size: 1rem;
  color: var(--text-secondary);
  transition: color var(--transition-fast),
    transform 0.2s var(--transition-bounce);
  margin-bottom: 2px;
}

.view-options button span {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.view-options button:hover:not(.active) {
  background-color: var(--bg-hover);
}

.view-options button:hover:not(.active) i,
.view-options button:hover:not(.active) span {
  color: var(--primary);
}

.view-options button.active {
  background-color: var(--bg-primary);
  border-color: var(--border-medium);
  box-shadow: var(--shadow-sm);
}

.view-options button.active i {
  color: var(--primary);
  transform: scale(1.1);
  text-shadow: 0 1px 2px rgba(240, 87, 42, 0.2);
}

.view-options button.active span {
  color: var(--primary);
  font-weight: 600;
}

.filters-section {
  flex: 1;
  display: flex;
  flex-direction: column;
  background-color: var(--bg-primary);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: var(--spacing-4);
}

.filters-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-4);
  padding-bottom: var(--spacing-3);
  border-bottom: 1px solid var(--border-light);
}

.filters-header h3 {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
}

.reset-btn {
  background: transparent;
  border: none;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--primary);
  transition: all var(--transition-fast);
  border-radius: var(--radius-sm);
  padding: 1px var(--spacing-2);
  position: relative;
  overflow: hidden;
  letter-spacing: 0.01em;
  padding-top: 3px;
  padding-bottom: 5px;
}

.reset-btn::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -1px;
  height: 2px;
  width: 0;
  background-color: var(--primary);
  transition: width 0.3s ease;
}

.reset-btn:hover {
  color: var(--primary-dark);
  background-color: var(--primary-bg);
}

.reset-btn:hover::after {
  width: 100%;
}

.filter-group {
  margin-bottom: var(--spacing-5);
  padding: var(--spacing-2) var(--spacing-1);
}

.filter-group:last-child {
  margin-bottom: 0;
}

.filter-group h4 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-3);
}

.filter-options {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2);
  padding-left: var(--spacing-1);
}

.filter-checkbox {
  display: flex;
  align-items: center;
  position: relative;
  padding: var(--spacing-1) var(--spacing-1) var(--spacing-1) 28px;
  cursor: pointer;
  font-size: 0.875rem;
  user-select: none;
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast), transform 0.2s ease;
}

.filter-checkbox:hover {
  background-color: var(--bg-tertiary);
}

.filter-checkbox:active {
  transform: scale(0.98);
}

.filter-checkbox input {
  position: absolute;
  opacity: 0;
  cursor: pointer;
  height: 0;
  width: 0;
}

.checkmark {
  position: absolute;
  left: 0;
  height: 18px;
  width: 18px;
  background-color: var(--bg-primary);
  border: 2px solid var(--border-medium);
  border-radius: 4px;
  transition: all 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.filter-checkbox:hover .checkmark {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(240, 87, 42, 0.1);
}

.filter-checkbox input:checked ~ .checkmark {
  background-color: var(--primary);
  border-color: var(--primary);
  box-shadow: 0 1px 3px rgba(240, 87, 42, 0.2);
  animation: checkboxPop 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes checkboxPop {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.15);
  }
}

.filter-checkbox input:focus-visible ~ .checkmark {
  box-shadow: var(--shadow-focus);
}

.checkmark:after {
  content: '';
  position: absolute;
  display: none;
  left: 6px;
  top: 2px;
  width: 4px;
  height: 8px;
  border: solid white;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
  transition: all var(--transition-bounce);
}

.filter-checkbox input:checked ~ .checkmark:after {
  display: block;
  animation: checkmark 0.2s var(--transition-bounce) forwards;
}

@keyframes checkmark {
  0% {
    height: 0;
    width: 0;
    opacity: 0;
  }
  100% {
    height: 8px;
    width: 4px;
    opacity: 1;
  }
}

.checkmark.timetable {
  border-color: var(--timetable-color);
}

.filter-checkbox input:checked ~ .checkmark.timetable {
  background-color: var(--timetable-color);
  border-color: var(--timetable-color);
  box-shadow: 0 1px 3px rgba(240, 87, 42, 0.2);
}

.checkmark.assessment {
  border-color: var(--assessment-color);
}

.filter-checkbox input:checked ~ .checkmark.assessment {
  background-color: var(--assessment-color);
  border-color: var(--assessment-color);
  box-shadow: 0 1px 3px rgba(244, 63, 94, 0.2);
}

.checkmark.quiz {
  border-color: var(--quiz-color);
}

.filter-checkbox input:checked ~ .checkmark.quiz {
  background-color: var(--quiz-color);
  border-color: var(--quiz-color);
  box-shadow: 0 1px 3px rgba(139, 92, 246, 0.2);
}

.checkmark.exam {
  border-color: var(--exam-color);
}

.filter-checkbox input:checked ~ .checkmark.exam {
  background-color: var(--exam-color);
  border-color: var(--exam-color);
  box-shadow: 0 1px 3px rgba(244, 63, 94, 0.2);
}

.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.main-header {
  height: var(--header-height);
  background: linear-gradient(
    to bottom,
    var(--bg-primary),
    var(--bg-secondary)
  );
  border-bottom: 1px solid var(--border-light);
  padding: 0 var(--spacing-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 10;
}

.date-navigation {
  display: flex;
  align-items: center;
  gap: var(--spacing-4);
}

.today-btn {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  border: none;
  border-radius: 6px;
  padding: var(--spacing-2) var(--spacing-4);
  font-size: 0.875rem;
  font-weight: 600;
  transition: all var(--transition-fast);
  box-shadow: 0 2px 4px rgba(240, 87, 42, 0.25),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
  letter-spacing: 0.01em;
  overflow: hidden;
  position: relative;
}

.today-btn::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 40%;
  background: linear-gradient(rgba(255, 255, 255, 0.1), transparent);
  border-radius: inherit;
}

.today-btn:hover {
  filter: brightness(1.05);
  box-shadow: 0 3px 6px rgba(240, 87, 42, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.today-btn:active {
  filter: brightness(0.95);
  box-shadow: 0 1px 2px rgba(240, 87, 42, 0.4);
}

.date-controls {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  background: linear-gradient(
    to bottom,
    var(--bg-primary),
    var(--bg-secondary)
  );
  border-radius: var(--radius);
  padding: var(--spacing-1) var(--spacing-2);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
}

.nav-btn {
  background-color: transparent;
  border: none;
  border-radius: var(--radius-sm);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-btn:hover {
  background-color: var(--bg-hover);
  color: var(--primary);
}

.nav-btn:active {
  transform: scale(0.9);
  background-color: var(--bg-active);
}

#currentDate {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  min-width: 180px;
  text-align: center;
  letter-spacing: -0.01em;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-4);
}

.search-container {
  position: relative;
}

.search-container input[type='search']::-webkit-search-decoration,
.search-container input[type='search']::-webkit-search-cancel-button,
.search-container input[type='search']::-webkit-search-results-button,
.search-container input[type='search']::-webkit-search-results-decoration {
  display: none;
}

.search-container input {
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-full);
  padding: var(--spacing-2) var(--spacing-4) var(--spacing-2) var(--spacing-10);
  width: 240px;
  font-size: 0.875rem;
  transition: background-color 0.2s ease, border-color 0.2s ease,
    width 0.3s ease;
}

.search-container input:focus {
  width: 280px;
  background-color: var(--bg-primary);
  border-color: var(--primary-light);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  outline: none;
}

.search-container input::placeholder {
  color: var(--text-tertiary);
  transition: color 0.2s ease;
}

.search-container input:focus::placeholder {
  color: var(--text-secondary);
}

.search-container i {
  position: absolute;
  left: var(--spacing-4);
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-secondary);
  font-size: 1rem;
  pointer-events: none;
  transition: color 0.2s ease, transform 0.2s ease;
}

.search-container input:focus + i {
  color: var(--primary);
  transform: translateY(-50%) scale(1.1);
}

.calendar-wrapper {
  flex: 1;
  padding: var(--spacing-6);
  overflow: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--border-medium) transparent;
}

.calendar-wrapper::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

.calendar-wrapper::-webkit-scrollbar-track {
  background: transparent;
}

.calendar-wrapper::-webkit-scrollbar-thumb {
  background-color: var(--border-medium);
  border-radius: var(--radius-full);
  border: 2px solid var(--bg-secondary);
}

.calendar-wrapper::-webkit-scrollbar-thumb:hover {
  background-color: var(--text-tertiary);
}

.month-view {
  background-color: var(--bg-primary);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: box-shadow var(--transition);
}

.month-header {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  background: linear-gradient(to right, var(--primary-dark), var(--primary));
  position: relative;
  overflow: hidden;
}

.month-header::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 40%;
  background: linear-gradient(rgba(255, 255, 255, 0.1), transparent);
}

.month-header-cell {
  padding: var(--spacing-4) 0;
  text-align: center;
  color: white;
  font-weight: 600;
  font-size: 0.875rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  position: relative;
  z-index: 1;
}

.month-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  background-color: var(--border-light);
  gap: 1px;
  padding: 1px;
}

.month-day {
  min-height: 132px;
  height: 132px;
  border: none;
  padding: var(--spacing-2);
  position: relative;
  background-color: var(--bg-primary);
  transition: transform 0.2s ease, box-shadow 0.3s ease;
  overflow-y: auto;
  scrollbar-width: none;
  display: flex;
  flex-direction: column;
}

.month-day::-webkit-scrollbar {
  display: none;
}

.month-day.other-month {
  background-color: var(--bg-tertiary);
}

.month-day:hover {
  z-index: 1;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
}

.day-number {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-2);
  height: 24px;
  width: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  align-self: flex-start;
}

.month-day.today .day-number {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  font-weight: 600;
  box-shadow: 0 2px 4px rgba(240, 87, 42, 0.25);
}

.month-day.other-month .day-number {
  color: var(--text-tertiary);
}

.day-events {
  display: flex;
  flex-direction: column;
  gap: 3px;
  flex: 1;
}

.past-event {
  opacity: 0.35;
  pointer-events: none;
  cursor: default;
  filter: grayscale(1);
}

.event-item {
  padding: var(--spacing-1) var(--spacing-2);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  align-items: flex-start;
  gap: 4px;
  padding-right: var(--spacing-3);
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
  border-left: 2px solid transparent;
  position: relative;
  overflow: hidden;
}

.event-item::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(rgba(255, 255, 255, 0.1), transparent);
  opacity: 0;
  transition: opacity 0.2s ease;
  pointer-events: none;
}

.event-item:hover::after {
  opacity: 1;
}

.event-item:hover {
  box-shadow: 0 2px 5px rgba(15, 23, 42, 0.1);
}

.event-item.timetable {
  background-color: var(--timetable-light);
  color: var(--timetable-color);
  border-left-color: var(--timetable-color);
}

.event-item.timetable:hover {
  background-color: var(--timetable-hover);
}

.event-item.assessment {
  background-color: var(--assessment-light);
  color: var(--assessment-color);
  height: auto;
  min-height: 32px;
  padding-top: 2px;
  padding-bottom: 2px;
  border-left-color: var(--assessment-color);
}

.event-item.assessment:hover {
  background-color: var(--assessment-hover);
}

.event-item.quiz {
  background-color: var(--quiz-light);
  color: var(--quiz-color);
  height: auto;
  min-height: 32px;
  padding-top: 2px;
  padding-bottom: 2px;
  border-left-color: var(--quiz-color);
}

.event-item.quiz:hover {
  background-color: var(--quiz-hover);
}

.event-item.exam {
  background-color: var(--exam-light);
  color: var(--exam-color);
  height: auto;
  min-height: 32px;
  padding-top: 2px;
  padding-bottom: 2px;
  border-left-color: var(--exam-color);
}

.event-item.exam:hover {
  background-color: var(--exam-hover);
}

.event-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  flex-shrink: 0;
  margin-top: 3px;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.15);
  transform-origin: center;
  transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.event-item:hover .event-dot {
  transform: scale(1.2);
}

.event-dot.timetable {
  background-color: var(--timetable-color);
}

.event-dot.assessment {
  background-color: var(--assessment-color);
  margin-top: 4px;
}

.event-dot.quiz {
  background-color: var(--quiz-color);
  margin-top: 4px;
}

.event-dot.exam {
  background-color: var(--exam-color);
  margin-top: 4px;
}

.event-content {
  flex: 1;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.event-title {
  font-size: 0.75rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.3;
}

.event-subject {
  font-size: 0.65rem;
  color: inherit;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  opacity: 0.75;
  line-height: 1.3;
}

.more-events {
  font-size: 0.75rem;
  color: var(--primary);
  text-align: center;
  margin-top: 5px;
  padding: 2px 4px;
  cursor: pointer;
  font-weight: 500;
  padding: 2px 4px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  background-color: rgba(240, 87, 42, 0.05);
  align-self: center;
}

.more-events:hover {
  background-color: rgba(240, 87, 42, 0.1);
  box-shadow: var(--shadow-sm);
}

.week-view {
  background-color: var(--bg-primary);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: box-shadow var(--transition);
  display: flex;
  flex-direction: column;
  height: calc(100vh - var(--header-height) - var(--spacing-12));
  min-height: 600px;
}

.week-header {
  display: grid;
  grid-template-columns: 60px repeat(7, 1fr);
  background-color: var(--bg-primary);
  border-bottom: 1px solid var(--border-light);
  position: sticky;
  top: 0;
  z-index: 5;
}

.week-header-day {
  padding: var(--spacing-2) 0;
  text-align: center;
  border-left: 1px solid var(--border-light);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: background-color 0.2s ease;
}

.week-header-day.today {
  background-color: var(--primary-bg);
  box-shadow: inset 0 -2px 0 var(--primary);
}

.week-day-name {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.week-day-number {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-top: 2px;
}

.week-header-day.today .week-day-number {
  color: var(--primary);
}

.week-allday-container {
  display: grid;
  grid-template-columns: 60px repeat(7, 1fr);
  border-bottom: 1px solid var(--border-light);
  background-color: var(--bg-secondary);
  min-height: 45px;
}

.week-allday-label {
  padding: var(--spacing-2);
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  border-right: 1px solid var(--border-light);
}

.week-allday-column {
  padding: var(--spacing-1);
  min-height: 40px;
  max-height: 120px;
  border-left: 1px solid var(--border-light);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  gap: 2px;
}

.week-allday-event {
  padding: var(--spacing-1) var(--spacing-2);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: flex-start;
  gap: 4px;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-height: 20px;
  position: relative;
}

.week-allday-event::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(rgba(255, 255, 255, 0.1), transparent);
  opacity: 0;
  transition: opacity 0.2s ease;
  pointer-events: none;
}

.week-allday-event:hover::after {
  opacity: 1;
}

.week-allday-event.timetable {
  background-color: var(--timetable-light);
  color: var(--timetable-color);
  border-left: 2px solid var(--timetable-color);
}

.week-event.assessment .week-event-subject,
.week-event.quiz .week-event-subject,
.week-event.exam .week-event-subject {
  opacity: 1;
  font-size: 0.7rem;
  font-weight: 600;
  color: inherit;
}

.week-allday-event.assessment {
  background-color: var(--assessment-light);
  color: var(--assessment-color);
  border-left: 2px solid var(--assessment-color);
}

.week-allday-event.quiz {
  background-color: var(--quiz-light);
  color: var(--quiz-color);
  border-left: 2px solid var(--quiz-color);
}

.week-allday-event.exam {
  background-color: var(--exam-light);
  color: var(--exam-color);
  border-left: 2px solid var(--exam-color);
}

.week-allday-event:hover {
  box-shadow: var(--shadow-sm);
}

.week-allday-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.week-allday-title {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.2;
}

.week-allday-subject {
  font-size: 0.65rem;
  color: inherit;
  opacity: 0.8;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.2;
}

.week-allday-event .event-dot {
  margin-top: 4px;
}

.week-time-grid {
  display: grid;
  grid-template-columns: 60px repeat(7, 1fr);
  flex: 1;
  overflow-y: auto;
  position: relative;
  scrollbar-width: thin;
  scrollbar-color: var(--border-medium) transparent;
}

.week-time-grid::-webkit-scrollbar {
  width: 8px;
}

.week-time-grid::-webkit-scrollbar-track {
  background: transparent;
}

.week-time-grid::-webkit-scrollbar-thumb {
  background-color: var(--border-medium);
  border-radius: var(--radius-full);
  border: 2px solid var(--bg-primary);
}

.week-time-column {
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--border-light);
}

.week-time-slot {
  height: 60px;
  border-bottom: 1px solid var(--border-light);
  position: relative;
}

.week-time-label {
  position: absolute;
  top: -10px;
  right: 8px;
  font-size: 0.75rem;
  color: var(--text-tertiary);
  font-weight: 500;
}

.week-day-column {
  position: relative;
  border-left: 1px solid var(--border-light);
  transition: background-color 0.2s ease;
}

.week-day-column.today {
  background-color: var(--primary-bg);
}

.week-event {
  position: absolute;
  left: 2px;
  right: 2px;
  border-radius: var(--radius-sm);
  padding: var(--spacing-1) var(--spacing-2);
  font-size: 0.75rem;
  overflow: hidden;
  cursor: pointer;
  transition: all var(--transition-fast);
  z-index: 1;
  box-shadow: var(--shadow-sm);
}

.week-event::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(rgba(255, 255, 255, 0.1), transparent);
  opacity: 0;
  transition: opacity 0.2s ease;
  pointer-events: none;
}

.week-event:hover::after {
  opacity: 1;
}

.week-event:hover {
  box-shadow: var(--shadow);
  z-index: 2;
  transform: scale(1.01);
}

.week-event.timetable {
  background-color: var(--timetable-light);
  color: var(--timetable-color);
  border-left: 3px solid var(--timetable-color);
}

.week-event.assessment {
  background-color: var(--assessment-light);
  color: var(--assessment-color);
  border-left: 3px solid var(--assessment-color);
}

.week-event.quiz {
  background-color: var(--quiz-light);
  color: var(--quiz-color);
  border-left: 3px solid var(--quiz-color);
}

.week-event.exam {
  background-color: var(--exam-light);
  color: var(--exam-color);
  border-left: 3px solid var(--exam-color);
}

.week-event-content {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.week-event-time {
  font-size: 0.6875rem;
  font-weight: 600;
  margin-bottom: 2px;
}

.week-event-title {
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.week-event-subject {
  font-size: 0.6875rem;
  opacity: 0.8;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.list-view {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-6);
}

.list-group {
  background-color: var(--bg-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.list-group:hover {
  box-shadow: var(--shadow-md);
}

.list-date-header {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: white;
  padding: var(--spacing-4) var(--spacing-6);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  position: relative;
  overflow: hidden;
}

.list-date-header::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 40%;
  background: linear-gradient(rgba(255, 255, 255, 0.1), transparent);
}

.list-events {
  padding: var(--spacing-4);
}

.list-event {
  display: flex;
  padding: var(--spacing-4);
  border-radius: var(--radius);
  margin-bottom: var(--spacing-3);
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.21, 1.02, 0.73, 1);
  transform-origin: center;
  border: 1px solid var(--border-light);
  min-height: 80px;
  background-color: var(--bg-primary);
  position: relative;
  overflow: hidden;
}

.list-event:last-child {
  margin-bottom: 0;
}

.list-event:hover {
  box-shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.15),
    0 8px 10px -6px rgba(15, 23, 42, 0.1);
  border-left-width: 6px;
  z-index: 1;
}

.list-event.timetable {
  border-left: 4px solid var(--timetable-color);
}

.list-event.timetable::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--timetable-light);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
  border-radius: inherit;
}

.list-event.timetable:hover::before {
  opacity: 1;
}

.list-event.assessment {
  border-left: 4px solid var(--assessment-color);
}

.list-event.assessment::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--assessment-light);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
  border-radius: inherit;
}

.list-event.assessment:hover::before {
  opacity: 1;
}

.list-event.quiz {
  border-left: 4px solid var(--quiz-color);
}

.list-event.quiz::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--quiz-light);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
  border-radius: inherit;
}

.list-event.quiz:hover::before {
  opacity: 1;
}

.list-event.exam {
  border-left: 4px solid var(--exam-color);
}

.list-event.exam::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--exam-light);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
  border-radius: inherit;
}

.list-event.exam:hover::before {
  opacity: 1;
}

.list-event.timetable:hover {
  border-color: var(--timetable-color);
  box-shadow: 0 10px 25px -5px rgba(240, 87, 42, 0.15),
    0 8px 10px -6px rgba(240, 87, 42, 0.1);
}

.list-event.assessment:hover {
  border-color: var(--assessment-color);
  box-shadow: 0 10px 25px -5px rgba(37, 99, 235, 0.15),
    0 8px 10px -6px rgba(37, 99, 235, 0.1);
}

.list-event.quiz:hover {
  border-color: var(--quiz-color);
  box-shadow: 0 10px 25px -5px rgba(147, 51, 234, 0.15),
    0 8px 10px -6px rgba(147, 51, 234, 0.1);
}

.list-event.exam:hover {
  border-color: var(--exam-color);
  box-shadow: 0 10px 25px -5px rgba(244, 63, 94, 0.15),
    0 8px 10px -6px rgba(244, 63, 94, 0.1);
}

.list-event:hover .list-event-badge {
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.1);
}

.list-event-badge {
  font-size: 0.6875rem;
  font-weight: 600;
  padding: 2px var(--spacing-2);
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  transition: transform 0.3s var(--transition-bounce), box-shadow 0.3s ease;
}

.list-event-time {
  width: 100px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.list-event-content {
  flex: 1;
  position: relative;
  z-index: 1;
}

.list-event-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-1);
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  transition: color 0.2s ease;
}

.list-event-subject {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.list-event-badge.timetable {
  background-color: var(--timetable-light);
  color: var(--timetable-color);
}

.list-event-badge.assessment {
  background-color: var(--assessment-light);
  color: var(--assessment-color);
}

.list-event-badge.quiz {
  background-color: var(--quiz-light);
  color: var(--quiz-color);
}

.list-event-badge.exam {
  background-color: var(--exam-light);
  color: var(--exam-color);
}

.no-events {
  background-color: var(--bg-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: var(--spacing-12);
  text-align: center;
  transition: all var(--transition);
  border: 1px dashed var(--border-medium);
}

.no-events:hover {
  box-shadow: var(--shadow-md);
  background-color: var(--bg-secondary);
}

.no-events-icon {
  font-size: 3rem;
  color: var(--text-tertiary);
  margin-bottom: var(--spacing-4);
  display: inline-block;
  background-color: var(--bg-tertiary);
  width: 80px;
  height: 80px;
  line-height: 80px;
  border-radius: var(--radius-full);
  transition: all var(--transition);
}

.no-events:hover .no-events-icon {
  color: var(--primary);
  background-color: var(--primary-bg);
}

.no-events-text {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-2);
}

.no-events-subtext {
  font-size: 0.8925rem;
  color: var(--text-tertiary);
  max-width: 400px;
  margin: 0 auto;
  line-height: 1.6;
}

.current-time-indicator {
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  background: repeating-linear-gradient(
    to right,
    #ef4444,
    #ef4444 6px,
    transparent 6px,
    transparent 12px
  );
  z-index: 5;
  pointer-events: none;
}

.modal {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.95);
  background-color: var(--bg-primary);
  border-radius: var(--radius-xl);
  border: none;
  box-shadow: var(--shadow-lg), 0 0 0 1px var(--border-light);
  width: 90%;
  max-width: 500px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  opacity: 0;
  visibility: hidden;
  transition: transform 0.2s cubic-bezier(0.21, 1.02, 0.73, 1),
    opacity 0.4s cubic-bezier(0.21, 1.02, 0.73, 1);
  animation: none;
  will-change: transform, opacity;
  overflow: hidden;
  backdrop-filter: blur(8px);
}

.modal.active {
  transform: translate(-50%, -50%) scale(1);
  opacity: 1;
  visibility: visible;
}

.modal-header {
  padding: var(--spacing-4) var(--spacing-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-light);
  background: linear-gradient(
    to bottom,
    var(--bg-primary),
    var(--bg-secondary)
  );
}

.modal-event-type {
  font-size: 0.8125rem;
  font-weight: 600;
  padding: var(--spacing-1) var(--spacing-3);
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  box-shadow: var(--shadow-sm);
}

.modal-event-type.timetable {
  background-color: var(--timetable-light);
  color: var(--timetable-color);
}

.modal-event-type.assessment {
  background-color: var(--assessment-light);
  color: var(--assessment-color);
}

.modal-event-type.quiz {
  background-color: var(--quiz-light);
  color: var(--quiz-color);
}

.modal-event-type.exam {
  background-color: var(--exam-light);
  color: var(--exam-color);
}

.close-modal {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 1.25rem;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
}

.close-modal:hover {
  background-color: var(--bg-hover);
  color: var(--text-primary);
}

.close-modal:active {
  transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.modal-body {
  padding: var(--spacing-6);
  max-height: calc(90vh - 120px);
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--border-medium) transparent;
}

.modal-body::-webkit-scrollbar {
  width: 6px;
}

.modal-body::-webkit-scrollbar-track {
  background: transparent;
}

.modal-body::-webkit-scrollbar-thumb {
  background-color: var(--border-medium);
  border-radius: var(--radius-full);
}

.modal-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-4);
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.modal-details {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2);
}

.modal-detail {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-3);
  padding: var(--spacing-2);
  transition: background-color var(--transition-fast);
  border-radius: 6px;
}

.modal-detail:hover {
  background-color: var(--bg-tertiary);
}

.modal-detail i {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-top: 2px;
  width: 20px;
  text-align: center;
  transition: transform 0.2s ease, color 0.2s ease;
}

.modal-detail:hover i {
  color: var(--primary);
  transform: scale(1.1);
}

.modal-detail-content {
  flex: 1;
}

.modal-detail-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 2px;
}

.modal-detail-value {
  font-size: 0.8925rem;
  color: var(--text-primary);
  line-height: 1.5;
}

.modal-detail i.fa-percentage,
.modal-detail i.fa-info-circle {
  color: var(--text-secondary);
}

.modal-detail:hover i.fa-percentage {
  color: var(--primary);
}

.modal-detail:hover i.fa-info-circle {
  color: var(--primary);
}

.modal-detail-value {
  font-size: 0.8925rem;
  color: var(--text-primary);
  line-height: 2;
}

.subject-sys {
  border-right: 3px solid #3b82f6;
}

.subject-tech {
  border-right: 3px solid #10b981;
}

.subject-man {
  border-right: 3px solid #f59e0b;
}

.subject-emo {
  border-right: 3px solid #8b5cf6;
}

.event-item:hover .subject-icon,
.list-event:hover .subject-icon {
  transform: scale(1.2);
}

.overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(15, 23, 42, 0.4);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 90;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-enter);
}

.overlay.active {
  opacity: 1;
  visibility: visible;
}

.mobile-nav-toggle {
  display: none;
  position: fixed;
  bottom: var(--spacing-6);
  right: var(--spacing-6);
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  background: linear-gradient(145deg, var(--primary), var(--primary-dark));
  color: white;
  border: none;
  font-size: 1.25rem;
  z-index: 60;
  box-shadow: 0 4px 10px rgba(240, 87, 42, 0.3),
    0 0 0 1px rgba(240, 87, 42, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.15);
  transition: all var(--transition);
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.mobile-nav-toggle::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 45%;
  background: linear-gradient(rgba(255, 255, 255, 0.15), transparent);
  border-radius: inherit;
}

.mobile-nav-toggle:hover {
  box-shadow: 0 6px 15px rgba(240, 87, 42, 0.4),
    0 0 0 1px rgba(240, 87, 42, 0.2);
}

.mobile-nav-toggle:active {
  transform: translateY(1px) scale(0.95);
}

.hidden {
  display: none !important;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
[tabindex='0']:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--primary-focus);
  transition: box-shadow 0.2s ease;
}

.event-item,
.week-event,
.list-event,
.week-allday-event,
.more-events,
.filter-checkbox,
.user-profile,
.view-options button,
.reset-btn,
.today-btn,
.nav-btn,
.search-container input,
.clear-search,
.close-modal,
.edit-btn,
.delete-btn,
.close-sidebar,
.mobile-nav-toggle {
  will-change: transform, box-shadow, background-color;
}

.today-btn:active,
.nav-btn:active,
.edit-btn:active,
.delete-btn:active,
.mobile-nav-toggle:active,
.view-options button:active,
.close-modal:active,
.clear-search:active {
  transform: scale(0.95);
  transition: transform 0.1s ease;
}

.event-title,
.week-event-title,
.list-event-title {
  text-shadow: 0 0.5px 0 rgba(255, 255, 255, 0.5);
}

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

.calendar-wrapper > * {
  animation: fadeIn 0.3s ease-out forwards;
}

@media (max-width: 1024px) {
  .sidebar {
    width: 240px;
  }

  .search-container input {
    width: 200px;
  }

  .search-container input:focus {
    width: 240px;
  }

  .view-selector {
    display: none;
  }

  .calendar-wrapper {
    padding: var(--spacing-4);
  }

  .month-day {
    min-height: 110px;
    height: 110px;
  }

  .week-view {
    height: calc(100vh - var(--header-height) - var(--spacing-8));
    min-height: 500px;
  }

  .week-header {
    grid-template-columns: 50px repeat(7, 1fr);
  }

  .week-time-grid {
    grid-template-columns: 50px repeat(7, 1fr);
  }

  .week-allday-container {
    grid-template-columns: 50px repeat(7, 1fr);
  }

  .week-time-slot {
    height: 50px;
  }
}

@media (max-width: 768px) {
  .app-wrapper {
    flex-direction: column;
  }

  .sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: 280px;
    transform: translateX(-100%);
    z-index: 100;
    box-shadow: var(--shadow-lg);
    height: 100%;
    overflow-y: auto;
  }

  .view-selector {
    display: none;
  }

  .sidebar.active {
    transform: translateX(0);
  }

  .close-sidebar {
    display: flex;
  }

  .mobile-nav-toggle {
    position: fixed;
    display: flex;
    bottom: var(--spacing-6);
    right: var(--spacing-6);
    width: 56px;
    height: 56px;
    font-size: 1.125rem;
  }

  .main-header {
    flex-direction: column;
    height: auto;
    padding: var(--spacing-4);
    gap: var(--spacing-4);
  }

  .date-navigation,
  .header-actions {
    width: 100%;
  }

  .date-navigation {
    justify-content: space-between;
  }

  .header-actions {
    flex-direction: column;
    gap: var(--spacing-3);
  }

  .search-container {
    width: 100%;
  }

  .search-container input,
  .search-container input:focus {
    width: 100%;
  }

  .month-day {
    min-height: 100px;
    height: 100px;
  }

  .list-event {
    flex-direction: column;
    gap: var(--spacing-2);
  }

  .list-event-time {
    width: auto;
  }

  .modal-title {
    font-size: 1.25rem;
  }

  .calendar-wrapper {
    padding: var(--spacing-3);
  }

  .week-view {
    height: calc(100vh - 150px);
    min-height: 500px;
  }

  .week-header {
    grid-template-columns: 40px repeat(7, 1fr);
  }

  .week-time-grid {
    grid-template-columns: 40px repeat(7, 1fr);
  }

  .week-allday-container {
    grid-template-columns: 40px repeat(7, 1fr);
  }

  .week-time-slot {
    height: 50px;
  }

  .week-day-name {
    font-size: 0.625rem;
  }

  .week-day-number {
    font-size: 0.875rem;
  }

  .week-event {
    font-size: 0.625rem;
    padding: 1px 3px;
  }

  .week-event-time {
    font-size: 0.625rem;
  }

  .week-event-subject {
    font-size: 0.625rem;
  }

  .week-allday-event {
    font-size: 0.625rem;
    padding: 1px 3px;
  }
}

@media (max-width: 480px) {
  :root {
    --header-height: auto;
  }

  .month-header-cell {
    font-size: 0.75rem;
    padding: var(--spacing-2) 0;
  }

  .month-day {
    min-height: 80px;
    height: 80px;
    padding: var(--spacing-1);
  }

  .day-number {
    font-size: 0.75rem;
    height: 20px;
    width: 20px;
  }

  .event-item {
    font-size: 0.6875rem;
    padding: 1px var(--spacing-1);
  }

  .event-title {
    font-size: 0.6875rem;
  }

  .event-subject {
    font-size: 0.625rem;
  }

  .more-events {
    font-size: 0.6875rem;
  }

  .view-selector {
    display: none;
  }

  .modal {
    width: 95%;
  }

  .modal-body {
    padding: var(--spacing-4);
  }

  .modal-footer {
    padding: var(--spacing-3) var(--spacing-4);
  }

  .today-btn {
    padding: var(--spacing-1) var(--spacing-3);
    font-size: 0.8125rem;
  }

  #currentDate {
    font-size: 1rem;
    min-width: 140px;
  }

  .mobile-nav-toggle {
    position: fixed;
    display: flex;
    bottom: var(--spacing-6);
    right: var(--spacing-6);
    width: 56px;
    height: 56px;
    font-size: 1.125rem;
  }

  .week-view {
    height: calc(100vh - 140px);
    min-height: 450px;
  }

  .week-header {
    grid-template-columns: 30px repeat(7, 1fr);
  }

  .week-time-grid {
    grid-template-columns: 30px repeat(7, 1fr);
  }

  .week-allday-container {
    grid-template-columns: 30px repeat(7, 1fr);
  }

  .week-time-slot {
    height: 40px;
  }

  .week-day-name {
    font-size: 0.625rem;
  }

  .week-day-number {
    font-size: 0.75rem;
  }

  .week-event {
    font-size: 0.625rem;
    padding: 1px 3px;
  }

  .week-event-time {
    font-size: 0.625rem;
  }

  .week-event-subject {
    display: none;
  }

  .week-allday-event {
    font-size: 0.625rem;
    padding: 1px 3px;
  }
}

@media print {
  :root {
    --bg-primary: white;
    --bg-secondary: white;
    --bg-tertiary: #f8fafc;
    --border-light: #e2e8f0;
    --text-primary: #000;
    --text-secondary: #333;
  }

  * {
    box-shadow: none !important;
    text-shadow: none !important;
    filter: none !important;
    transition: none !important;
  }

  body {
    background: white;
    font-size: 12pt;
  }

  .sidebar,
  .mobile-nav-toggle,
  .main-header,
  .modal,
  .overlay {
    display: none !important;
  }

  .app-wrapper {
    display: block;
    background: none;
  }

  .main-content {
    width: 100%;
  }

  .calendar-wrapper {
    padding: 0;
    overflow: visible;
  }

  .month-view,
  .list-view,
  .week-view {
    box-shadow: none;
    border: 1px solid var(--border-light);
    page-break-inside: avoid;
    height: auto !important;
  }

  .month-day {
    min-height: 100px;
    height: auto;
    page-break-inside: avoid;
  }

  .list-event:hover {
    transform: none;
  }

  .month-header {
    background: white;
    border-bottom: 2px solid var(--primary);
  }

  .month-header-cell {
    color: var(--primary);
  }

  .month-day {
    border: 1px solid #eee;
  }

  .list-date-header {
    background: white;
    color: var(--primary);
    border-bottom: 2px solid var(--primary);
    page-break-after: avoid;
  }

  .list-event {
    border: 1px solid #eee;
    page-break-inside: avoid;
    break-inside: avoid;
  }

  .week-header {
    background: white;
    page-break-after: avoid;
  }

  .week-header-day {
    color: var(--primary);
    border-bottom: 2px solid var(--primary);
  }

  .week-day-name {
    color: var(--primary);
  }

  .week-time-grid {
    overflow: visible;
  }

  .week-event:hover {
    transform: none;
  }

  .week-allday-container {
    background: white;
    border-bottom: 1px solid var(--border-light);
  }

  .week-allday-label {
    color: var(--primary);
  }

  .event-item {
    break-inside: avoid;
    page-break-inside: avoid;
    border: 1px solid #eee !important;
  }

  a::after {
    content: ' (' attr(href) ')';
    font-size: 0.8em;
    font-weight: normal;
    color: #555;
  }

  .event-item.timetable,
  .event-item.assessment,
  .event-item.quiz,
  .event-item.exam,
  .week-event.timetable,
  .week-event.assessment,
  .week-event.quiz,
  .week-event.exam,
  .list-event.timetable::before,
  .list-event.assessment::before,
  .list-event.quiz::before,
  .list-event.exam::before {
    -webkit-print-color-adjust: exact !important;
    print-color-adjust: exact !important;
  }

  h2,
  h3 {
    page-break-after: avoid;
  }

  img {
    page-break-inside: avoid;
  }

  .month-view,
  .list-group,
  .week-view {
    break-before: page;
  }

  .calendar-wrapper > *:first-child {
    break-before: auto;
  }
}