/**
 * Base Layout and Component Styles
 * Core styling for layout components and common UI elements
 */

/* === Layout Components === */

/* Application wrapper */
.app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: transparent; /* Changed to transparent so canvas background shows through */
  position: relative; /* Establish stacking context */
}

/* Main layout with sidebar */
.layout {
  display: flex;
  flex: 1;
  overflow: hidden;
}

.layout-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.layout-content {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-xl);
}

/* === Header Styles === */
.header {
  height: var(--header-height);
  background-color: var(--surface-4);
  border-bottom: 1px solid var(--border-secondary);
  display: flex;
  align-items: center;
  padding: 0 var(--spacing-xl);
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-brand {
  display: flex;
  align-items: center;
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  text-decoration: none;
}

.header-brand:hover {
  color: var(--color-primary);
}

.header-logo {
  width: 32px;
  height: 32px;
  margin-right: var(--spacing-md);
  display: block;
  object-fit: contain;
  background: transparent;
  background-color: transparent;
}

.header-logo-video {
  width: 32px;
  height: 32px;
}

.header-logo-fallback {
  width: 32px;
  height: 32px;
  object-fit: contain;
}

.logo-video {
  width: 40px;
  height: 40px;
  display: block;
  object-fit: contain;
  background: transparent;
  background-color: transparent;
  margin-right: var(--spacing-md);
}

.logo-video-fallback {
  width: 40px;
  height: 40px;
  object-fit: contain;
}

.header-nav {
  display: flex;
  align-items: center;
  margin-left: auto;
  gap: var(--spacing-lg);
}

.header-nav-item {
  color: var(--text-secondary);
  text-decoration: none;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  transition: var(--transition-colors);
}

.header-nav-item:hover {
  color: var(--text-primary);
  background-color: var(--surface-6);
}

.header-nav-item.active {
  color: var(--color-primary);
  background-color: var(--color-primary-alpha-10);
}

.header-user {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition-colors);
}

.header-user:hover {
  background-color: var(--surface-6);
}

.header-user-avatar {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  background-color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: var(--font-weight-medium);
}

.header-user-info {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.header-user-name {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--text-primary);
}

.header-user-role {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
}

/* === Sidebar Styles === */
.sidebar {
  width: var(--sidebar-width);
  background-color: var(--surface-2);
  border-right: 1px solid var(--border-secondary);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: width var(--transition-normal);
}

.sidebar.collapsed {
  width: var(--sidebar-width-collapsed);
}

.sidebar-header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--border-tertiary);
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  transition: all var(--transition-normal);
}

.sidebar-brand.collapsed {
  justify-content: center;
}

.sidebar-logo {
  width: 32px;
  height: 32px;
  display: block;
  object-fit: contain;
  background: transparent;
  background-color: transparent;
  flex-shrink: 0;
}

.sidebar-logo-video {
  width: 32px !important;
  height: 32px !important;
  mix-blend-mode: screen;
}

.sidebar-logo-fallback {
  width: 32px;
  height: 32px;
  object-fit: contain;
}

.sidebar-brand-text {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  transition: opacity var(--transition-normal);
}

.sidebar.collapsed .sidebar-brand-text {
  opacity: 0;
  pointer-events: none;
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-lg) 0;
}

.sidebar-nav-item {
  display: flex;
  align-items: center;
  padding: var(--spacing-md) var(--spacing-lg);
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition-colors);
  position: relative;
}

.sidebar-nav-item:hover {
  color: var(--text-primary);
  background-color: var(--nav-item-hover);
}

.sidebar-nav-item.active {
  color: var(--nav-item-text-active);
  background-color: var(--nav-item-active);
}

.sidebar-nav-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background-color: var(--color-primary);
}

.sidebar-nav-icon {
  width: 20px;
  height: 20px;
  margin-right: var(--spacing-md);
  flex-shrink: 0;
}

.sidebar.collapsed .sidebar-nav-icon {
  margin-right: 0;
}

.sidebar-nav-text {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  transition: opacity var(--transition-normal);
}

.sidebar.collapsed .sidebar-nav-text {
  opacity: 0;
  pointer-events: none;
}

.sidebar-toggle {
  padding: var(--spacing-md) var(--spacing-lg);
  border-top: 1px solid var(--border-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-secondary);
  transition: var(--transition-colors);
}

.sidebar-toggle:hover {
  color: var(--text-primary);
  background-color: var(--surface-4);
}

/* === Footer Styles === */
.footer {
  background-color: var(--surface-2);
  border-top: 1px solid var(--border-secondary);
  padding: var(--spacing-xl);
  margin-top: auto;
}

.footer-content {
  max-width: var(--max-width-xl);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-2xl);
}

.footer-section h4 {
  color: var(--text-primary);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-lg);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: var(--spacing-sm);
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: var(--font-size-sm);
  transition: var(--transition-colors);
}

.footer-links a:hover {
  color: var(--color-primary);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.footer-logo {
  width: 40px;
  height: 40px;
  max-width: 100%;
  flex-shrink: 0;
  object-fit: contain;
  border-radius: var(--radius-md);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.05);
}

.footer-brand-text {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
}

@media (max-width: 768px) {
  .footer-logo {
    width: 32px;
    height: 32px;
  }
  
  .footer-brand-text,
  .footer-brand h4 {
    font-size: var(--font-size-md);
  }
}

.footer-brand h4 {
  margin: 0;
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
}

.footer-bottom {
  margin-top: var(--spacing-2xl);
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--border-tertiary);
  text-align: center;
  color: var(--text-tertiary);
  font-size: var(--font-size-sm);
}

/* === Button Styles === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md) var(--spacing-lg);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  line-height: 1;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  text-decoration: none;
  transition: var(--transition-colors);
  white-space: nowrap;
  user-select: none;
}

.btn:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Button variants */
.btn-primary {
  background-color: var(--btn-primary-bg);
  color: var(--btn-primary-text);
  border-color: var(--btn-primary-bg);
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--btn-primary-hover);
  border-color: var(--btn-primary-hover);
}

.btn-primary:active:not(:disabled) {
  background-color: var(--btn-primary-active);
  border-color: var(--btn-primary-active);
}

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

.btn-secondary:hover:not(:disabled) {
  background-color: var(--btn-secondary-hover);
}

.btn-secondary:active:not(:disabled) {
  background-color: var(--btn-secondary-active);
}

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

.btn-danger:hover:not(:disabled) {
  background-color: var(--btn-danger-hover);
  border-color: var(--btn-danger-hover);
}

.btn-danger:active:not(:disabled) {
  background-color: var(--btn-danger-active);
  border-color: var(--btn-danger-active);
}

/* Button sizes */
.btn-sm {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-xs);
}

.btn-lg {
  padding: var(--spacing-lg) var(--spacing-xl);
  font-size: var(--font-size-base);
}

.btn-icon {
  padding: var(--spacing-md);
  width: auto;
  height: auto;
}

.btn-block {
  width: 100%;
}

/* === Form Styles === */
.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--text-primary);
}

.form-label.required::after {
  content: ' *';
  color: var(--color-danger);
}

.form-control {
  display: block;
  width: 100%;
  padding: var(--spacing-md);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-normal);
  color: var(--input-text);
  background-color: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-md);
  transition: var(--transition-colors);
}

.form-control:focus {
  outline: none;
  border-color: var(--input-border-focus);
  box-shadow: 0 0 0 3px var(--color-primary-alpha-10);
}

.form-control::placeholder {
  color: var(--input-placeholder);
}

.form-control:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.form-control.error {
  border-color: var(--border-error);
}

.form-control.error:focus {
  border-color: var(--border-error);
  box-shadow: 0 0 0 3px var(--color-danger-alpha-10);
}

.form-control.success {
  border-color: var(--border-success);
}

.form-control.success:focus {
  border-color: var(--border-success);
  box-shadow: 0 0 0 3px var(--color-success-alpha-10);
}

/* Form control sizes */
.form-control-sm {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-xs);
}

.form-control-lg {
  padding: var(--spacing-lg);
  font-size: var(--font-size-base);
}

/* Select styles */
.form-select {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
  background-position: right var(--spacing-md) center;
  background-repeat: no-repeat;
  background-size: 16px 12px;
  padding-right: var(--spacing-3xl);
  appearance: none;
}

/* Textarea styles */
.form-textarea {
  resize: vertical;
  min-height: 100px;
}

/* Checkbox and radio styles */
.form-check {
  display: flex;
  align-items: flex-start;
  margin-bottom: var(--spacing-md);
}

.form-check-input {
  width: 16px;
  height: 16px;
  margin-right: var(--spacing-sm);
  margin-top: 2px;
  background-color: var(--checkbox-bg);
  border: 1px solid var(--checkbox-border);
  border-radius: var(--radius-sm);
  transition: var(--transition-colors);
  flex-shrink: 0;
}

.form-check-input:checked {
  background-color: var(--checkbox-checked);
  border-color: var(--checkbox-checked);
}

.form-check-input:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.form-check-label {
  font-size: var(--font-size-sm);
  color: var(--text-primary);
  cursor: pointer;
}

/* Form feedback */
.form-feedback {
  margin-top: var(--spacing-xs);
  font-size: var(--font-size-xs);
}

.form-feedback.error {
  color: var(--color-danger);
}

.form-feedback.success {
  color: var(--color-success);
}

.form-feedback.info {
  color: var(--text-secondary);
}

/* === Card Styles === */
.card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--card-shadow);
  overflow: hidden;
  transition: var(--transition-normal);
}

.card:hover {
  box-shadow: var(--card-shadow-hover);
}

.card-header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--border-tertiary);
  background-color: var(--surface-3);
}

.card-title {
  margin: 0;
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
}

.card-subtitle {
  margin: var(--spacing-xs) 0 0 0;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.card-body {
  padding: var(--spacing-lg);
}

.card-footer {
  padding: var(--spacing-lg);
  border-top: 1px solid var(--border-tertiary);
  background-color: var(--surface-1);
}

/* Card variants */
.card-compact {
  border-radius: var(--radius-md);
}

.card-compact .card-header,
.card-compact .card-body,
.card-compact .card-footer {
  padding: var(--spacing-md);
}

/* === Modal Styles === */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--modal-overlay);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-modal-backdrop);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.modal-overlay.open {
  opacity: 1;
}

.modal {
  background-color: var(--modal-bg);
  border: 1px solid var(--modal-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--modal-shadow);
  max-width: 90vw;
  max-height: 90vh;
  overflow: hidden;
  transform: scale(0.95);
  transition: transform var(--transition-normal);
  z-index: var(--z-modal);
}

.modal-overlay.open .modal {
  transform: scale(1);
}

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

.modal-title {
  margin: 0;
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: var(--spacing-sm);
  border-radius: var(--radius-md);
  transition: var(--transition-colors);
}

.modal-close:hover {
  color: var(--text-primary);
  background-color: var(--surface-6);
}

.modal-body {
  padding: var(--spacing-xl);
  overflow-y: auto;
}

.modal-footer {
  padding: var(--spacing-xl);
  border-top: 1px solid var(--border-tertiary);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--spacing-md);
}

/* Modal sizes */
.modal-sm { width: 400px; }
.modal-md { width: 600px; }
.modal-lg { width: 800px; }
.modal-xl { width: 1000px; }

/* === Table Styles === */
.table-container {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--table-border);
}

.table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--table-bg);
}

.table th,
.table td {
  padding: var(--spacing-md);
  text-align: left;
  border-bottom: 1px solid var(--table-border);
}

.table th {
  background-color: var(--table-header-bg);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  font-size: var(--font-size-sm);
}

.table td {
  color: var(--text-primary);
  font-size: var(--font-size-sm);
}

.table tbody tr:hover {
  background-color: var(--table-row-hover);
}

.table tbody tr:last-child td {
  border-bottom: none;
}

/* Table variants */
.table-compact th,
.table-compact td {
  padding: var(--spacing-sm) var(--spacing-md);
}

/* === Alert Styles === */
.alert {
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  margin-bottom: var(--spacing-lg);
}

.alert-success {
  background-color: var(--color-success-alpha-10);
  border-color: var(--color-success);
  color: var(--color-success);
}

.alert-warning {
  background-color: var(--color-warning-alpha-10);
  border-color: var(--color-warning);
  color: var(--color-warning);
}

.alert-danger {
  background-color: var(--color-danger-alpha-10);
  border-color: var(--color-danger);
  color: var(--color-danger);
}

.alert-info {
  background-color: var(--color-info-alpha-10);
  border-color: var(--color-info);
  color: var(--color-info);
}

/* === Badge Styles === */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-primary { background-color: var(--color-primary); color: white; }
.badge-secondary { background-color: var(--color-secondary); color: white; }
.badge-success { background-color: var(--color-success); color: white; }
.badge-warning { background-color: var(--color-warning); color: var(--text-inverse); }
.badge-danger { background-color: var(--color-danger); color: white; }
.badge-info { background-color: var(--color-info); color: white; }

/* === Loading Styles === */
.loading {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
}

.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-secondary);
  border-top: 2px solid var(--color-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.spinner-lg {
  width: 32px;
  height: 32px;
  border-width: 3px;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* === Responsive Design === */
@media (max-width: 768px) {
  .layout {
    flex-direction: column;
  }
  
  .sidebar {
    width: 100%;
    height: auto;
    order: 2;
  }
  
  .layout-main {
    order: 1;
  }
  
  .layout-content {
    padding: var(--spacing-lg);
  }
  
  .header {
    padding: 0 var(--spacing-lg);
  }
  
  .header-nav {
    display: none;
  }
  
  .modal {
    margin: var(--spacing-lg);
    max-width: calc(100vw - var(--spacing-2xl));
  }
  
  .btn-block-mobile {
    width: 100%;
  }
  
  .table-container {
    font-size: var(--font-size-xs);
  }
}