/* Import Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Sarabun:wght@300;400;500;600;700&display=swap');

:root {
  /* Dark Theme Variables */
  --bg-primary: #0b0f19;
  --bg-secondary: #131b2e;
  --bg-tertiary: #1e293b;
  --card-bg: rgba(30, 41, 59, 0.7);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(99, 102, 241, 0.4);
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --primary-glow: rgba(99, 102, 241, 0.35);
  
  --success: #10b981;
  --success-bg: rgba(16, 185, 129, 0.1);
  --warning: #f59e0b;
  --warning-bg: rgba(245, 158, 11, 0.1);
  --danger: #ef4444;
  --danger-bg: rgba(239, 68, 68, 0.1);
  --info: #06b6d4;
  
  --sidebar-width: 260px;
  --header-height: 70px;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.3), 0 8px 10px -6px rgba(0, 0, 0, 0.3);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --backdrop-blur: blur(12px);
}

/* Light Theme Variables */
[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9;
  --card-bg: rgba(255, 255, 255, 0.8);
  --border-color: rgba(0, 0, 0, 0.06);
  --border-hover: rgba(99, 102, 241, 0.3);
  
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --primary-glow: rgba(79, 70, 229, 0.15);
  
  --success: #059669;
  --success-bg: rgba(5, 150, 105, 0.1);
  --warning: #d97706;
  --warning-bg: rgba(217, 119, 6, 0.1);
  --danger: #dc2626;
  --danger-bg: rgba(220, 38, 38, 0.1);
  --info: #0891b2;
  
  --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
}

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

body {
  font-family: 'Inter', 'Sarabun', sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  overflow-x: hidden;
  transition: background-color 0.3s ease;
}

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

/* Sidebar Styling */
aside {
  width: var(--sidebar-width);
  background-color: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  position: fixed;
  height: 100vh;
  z-index: 100;
  transition: var(--transition);
}

.sidebar-brand {
  height: var(--header-height);
  display: flex;
  align-items: center;
  padding: 0 24px;
  gap: 12px;
  border-bottom: 1px solid var(--border-color);
}

.brand-logo {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--primary), var(--info));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 1.2rem;
  box-shadow: 0 4px 12px var(--primary-glow);
}

.brand-name {
  font-weight: 700;
  font-size: 1.1rem;
  background: linear-gradient(to right, var(--text-primary), var(--text-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.sidebar-menu {
  list-style: none;
  padding: 24px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex-grow: 1;
}

.menu-item button {
  width: 100%;
  background: none;
  border: none;
  color: var(--text-secondary);
  padding: 12px 16px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 500;
  text-align: left;
  transition: var(--transition);
}

.menu-item button:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

.menu-item.active button {
  background: linear-gradient(to right, var(--primary), rgba(99, 102, 241, 0.1));
  color: #white;
  color: var(--text-primary);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.1);
  border-left: 3px solid var(--primary);
  padding-left: 13px;
}

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

.theme-toggle {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.theme-toggle:hover {
  color: var(--text-primary);
  border-color: var(--primary);
}

/* Main Content Area */
main {
  margin-left: var(--sidebar-width);
  flex-grow: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

header {
  height: var(--header-height);
  background-color: rgba(19, 27, 46, 0.3);
  backdrop-filter: var(--backdrop-blur);
  -webkit-backdrop-filter: var(--backdrop-blur);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 40px;
  position: sticky;
  top: 0;
  z-index: 90;
}

.header-title h1 {
  font-size: 1.3rem;
  font-weight: 600;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.status-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  background-color: var(--success-bg);
  color: var(--success);
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 500;
}

.status-dot {
  width: 8px;
  height: 8px;
  background-color: var(--success);
  border-radius: 50%;
  animation: pulse 1.5s infinite;
}

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

.content-body {
  padding: 40px;
  flex-grow: 1;
}

/* Page Views */
.view-section {
  display: none;
  animation: fadeIn 0.4s ease forwards;
}

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

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

/* Cards & Containers */
.glass-card {
  background: var(--card-bg);
  backdrop-filter: var(--backdrop-blur);
  -webkit-backdrop-filter: var(--backdrop-blur);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-lg);
  transition: var(--transition);
}

.glass-card:hover {
  border-color: var(--border-hover);
}

/* Dashboard Styles */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  margin-bottom: 32px;
}

.stat-card {
  display: flex;
  align-items: center;
  gap: 20px;
}

.stat-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.stat-icon.blue { background-color: rgba(99, 102, 241, 0.1); color: var(--primary); }
.stat-icon.green { background-color: var(--success-bg); color: var(--success); }
.stat-icon.orange { background-color: var(--warning-bg); color: var(--warning); }
.stat-icon.cyan { background-color: rgba(6, 182, 212, 0.1); color: var(--info); }

.stat-info .stat-value {
  font-size: 1.8rem;
  font-weight: 700;
  line-height: 1.2;
}

.stat-info .stat-label {
  color: var(--text-secondary);
  font-size: 0.85rem;
}

/* Charts & Detailed Stats Layout */
.dashboard-details {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 24px;
  margin-bottom: 32px;
}

@media (max-width: 1024px) {
  .dashboard-details {
    grid-template-columns: 1fr;
  }
}

.detail-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.detail-header h3 {
  font-size: 1.1rem;
  font-weight: 600;
}

/* Commute Chart Styling */
.chart-container {
  display: flex;
  flex-direction: column;
  gap: 16px;
  justify-content: center;
  height: 100%;
}

.chart-bar-row {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.chart-bar-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.chart-bar-label span:first-child {
  font-weight: 500;
  color: var(--text-primary);
}

.chart-bar-bg {
  height: 8px;
  background-color: var(--bg-tertiary);
  border-radius: 4px;
  overflow: hidden;
}

.chart-bar-fill {
  height: 100%;
  border-radius: 4px;
  transition: width 1s cubic-bezier(0.4, 0, 0.2, 1);
  background: linear-gradient(to right, var(--primary), var(--info));
}

/* Recent Activity List */
.activity-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.activity-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px;
  border-radius: var(--radius-md);
  background-color: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.activity-item:hover {
  background-color: rgba(255, 255, 255, 0.04);
}

.activity-user {
  display: flex;
  align-items: center;
  gap: 12px;
}

.activity-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(6, 182, 212, 0.2));
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.9rem;
}

.activity-info h4 {
  font-size: 0.9rem;
  font-weight: 500;
}

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

.activity-commute {
  font-size: 0.8rem;
  padding: 4px 10px;
  border-radius: 12px;
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
}

/* Student Directory styles */
.directory-controls {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.search-wrapper {
  position: relative;
  flex-grow: 1;
  min-width: 260px;
}

.search-wrapper input {
  width: 100%;
  height: 46px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0 16px 0 44px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  transition: var(--transition);
}

.search-wrapper input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

.search-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-secondary);
  pointer-events: none;
}

.filter-wrapper select {
  height: 46px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0 36px 0 16px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--transition);
  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='%2394a3b8'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 16px;
}

.filter-wrapper select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

/* Student Cards Grid */
.students-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.student-card {
  position: relative;
  overflow: hidden;
}

.student-card-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}

.student-avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--info));
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 1.1rem;
}

.student-meta h4 {
  font-size: 1rem;
  font-weight: 600;
}

.student-meta p {
  color: var(--text-secondary);
  font-size: 0.8rem;
}

.student-details-preview {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
  border-top: 1px solid var(--border-color);
  padding-top: 12px;
}

.preview-row {
  display: flex;
  gap: 8px;
}

.preview-row strong {
  color: var(--text-primary);
  width: 70px;
  flex-shrink: 0;
}

.student-card-actions {
  display: flex;
  gap: 8px;
  border-top: 1px solid var(--border-color);
  padding-top: 12px;
}

/* Button styles */
.btn {
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: var(--transition);
  text-decoration: none;
}

.btn-primary {
  background-color: var(--primary);
  color: white;
  box-shadow: 0 4px 12px var(--primary-glow);
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  transform: translateY(-1px);
}

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

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

.btn-danger-outline {
  background: none;
  color: var(--danger);
  border-color: rgba(239, 68, 68, 0.2);
}

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

.btn-icon {
  width: 32px;
  height: 32px;
  padding: 0;
  border-radius: var(--radius-sm);
}

/* Empty State */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  text-align: center;
  color: var(--text-secondary);
}

.empty-icon {
  font-size: 3rem;
  margin-bottom: 16px;
  color: var(--text-muted);
}

.empty-state h3 {
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

/* Multi-step Form styling */
.form-progress {
  display: flex;
  justify-content: space-between;
  position: relative;
  margin-bottom: 40px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.form-progress::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--border-color);
  transform: translateY(-50%);
  z-index: 1;
}

.progress-line {
  position: absolute;
  top: 50%;
  left: 0;
  height: 2px;
  background-color: var(--primary);
  transform: translateY(-50%);
  z-index: 1;
  width: 0%;
  transition: var(--transition);
}

.progress-step {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: var(--bg-secondary);
  border: 2px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-secondary);
  z-index: 2;
  transition: var(--transition);
  position: relative;
}

.progress-step::after {
  content: attr(data-title);
  position: absolute;
  top: 44px;
  font-size: 0.75rem;
  white-space: nowrap;
  color: var(--text-secondary);
  font-weight: 500;
}

.progress-step.active {
  border-color: var(--primary);
  background-color: var(--bg-primary);
  color: var(--primary);
  box-shadow: 0 0 10px var(--primary-glow);
}

.progress-step.active::after {
  color: var(--text-primary);
  font-weight: 600;
}

.progress-step.completed {
  border-color: var(--success);
  background-color: var(--success);
  color: white;
}

.form-step-content {
  display: none;
  max-width: 650px;
  margin: 0 auto;
}

.form-step-content.active {
  display: block;
  animation: slideIn 0.3s ease forwards;
}

@keyframes slideIn {
  from { opacity: 0; transform: translateX(20px); }
  to { opacity: 1; transform: translateX(0); }
}

.form-group-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

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

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}

.form-group.full-width {
  grid-column: span 2;
}

@media (max-width: 600px) {
  .form-group.full-width {
    grid-column: span 1;
  }
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.form-group input,
.form-group textarea,
.form-group select {
  height: 44px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0 16px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  transition: var(--transition);
}

.form-group textarea {
  height: 100px;
  padding: 12px 16px;
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

.form-navigation {
  display: flex;
  justify-content: space-between;
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid var(--border-color);
  max-width: 650px;
  margin-left: auto;
  margin-right: auto;
}

/* Radio buttons & commute options */
.commute-selector {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  width: 100%;
}

.commute-option {
  position: relative;
}

.commute-option input[type="radio"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.commute-card {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  cursor: pointer;
  background-color: var(--bg-secondary);
  transition: var(--transition);
  text-align: center;
}

.commute-card:hover {
  border-color: var(--border-hover);
}

.commute-option input[type="radio"]:checked + .commute-card {
  border-color: var(--primary);
  background-color: var(--primary-glow);
  box-shadow: 0 0 12px var(--primary-glow);
}

.commute-card-icon {
  font-size: 2rem;
}

.commute-card-title {
  font-size: 0.9rem;
  font-weight: 600;
}

/* Modal styling */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.6);
  backdrop-filter: var(--backdrop-blur);
  -webkit-backdrop-filter: var(--backdrop-blur);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-container {
  width: 90%;
  max-width: 600px;
  max-height: 85vh;
  overflow-y: auto;
  border-radius: var(--radius-lg);
  transform: scale(0.9) translateY(20px);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.modal-overlay.active .modal-container {
  transform: scale(1) translateY(0);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-color);
}

.modal-title h3 {
  font-size: 1.15rem;
  font-weight: 600;
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1.5rem;
  cursor: pointer;
  transition: var(--transition);
}

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

.modal-body {
  padding: 24px;
}

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

.detail-section:last-child {
  margin-bottom: 0;
}

.detail-section-title {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--primary);
  letter-spacing: 0.05em;
  margin-bottom: 12px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 6px;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

@media (max-width: 480px) {
  .detail-grid {
    grid-template-columns: 1fr;
  }
}

.detail-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.detail-item.full-width {
  grid-column: span 2;
}

@media (max-width: 480px) {
  .detail-item.full-width {
    grid-column: span 1;
  }
}

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

.detail-value {
  font-size: 0.95rem;
  font-weight: 500;
}

.detail-commute-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: var(--bg-tertiary);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}

/* Settings/Backup styling */
.settings-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

@media (max-width: 768px) {
  .settings-grid {
    grid-template-columns: 1fr;
  }
}

.settings-card {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.settings-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.file-input-wrapper {
  position: relative;
  width: 100%;
}

.file-input-wrapper input[type="file"] {
  position: absolute;
  left: 0;
  top: 0;
  opacity: 0;
  width: 100%;
  height: 100%;
  cursor: pointer;
}

.file-input-label {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-md);
  padding: 30px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
}

.file-input-label:hover {
  border-color: var(--primary);
  color: var(--text-primary);
  background-color: rgba(99, 102, 241, 0.02);
}

/* Notification banner */
.toast-notification {
  position: fixed;
  bottom: 24px;
  right: -320px;
  background-color: var(--bg-secondary);
  border-left: 4px solid var(--primary);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  border-right: 1px solid var(--border-color);
  padding: 16px 20px;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 300;
  transition: right 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.toast-notification.active {
  right: 24px;
}

.toast-notification.success { border-left-color: var(--success); }
.toast-notification.warning { border-left-color: var(--warning); }
.toast-notification.danger { border-left-color: var(--danger); }

.toast-icon {
  font-size: 1.2rem;
}

.toast-message {
  font-size: 0.9rem;
  font-weight: 500;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  aside {
    transform: translateX(-100%);
  }
  
  aside.active {
    transform: translateX(0);
  }
  
  main {
    margin-left: 0;
  }
  
  header {
    padding: 0 20px;
  }
  
  .content-body {
    padding: 20px;
  }
  
  .sidebar-toggle-btn {
    display: flex !important;
  }
}

.sidebar-toggle-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
}

.sidebar-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 95;
  display: none;
}

.sidebar-overlay.active {
  display: block;
}