/**
 * Main Stylesheet
 * Material Design System
 *
 * Complements material-theme.css with app-specific styles and utilities.
 */

/* ========================================
 * APP-SPECIFIC STYLES
 * ======================================== */

/* App Shell */
.app-shell {
  min-height: 100vh;
  display: flex;
  background: var(--md-gray-50);
}

/* Main Content */
.app-main {
  flex: 1;
  padding: calc(64px + var(--md-spacing-unit) * 2) calc(var(--md-spacing-unit) * 2) calc(var(--md-spacing-unit) * 2) calc(var(--md-spacing-unit) * 2);
  position: relative;
  margin-left: var(--md-sidebar-width);
  transition: margin-left var(--md-transition);
  min-height: 100vh;
}

@media (max-width: 768px) {
  .app-main {
    margin-left: 0;
    padding: calc(64px + var(--md-spacing-unit) * 2) calc(var(--md-spacing-unit) * 2) calc(var(--md-spacing-unit) * 2) calc(var(--md-spacing-unit) * 2);
  }
}

/* Header */
.app-header {
  position: fixed;
  top: 0;
  left: var(--md-sidebar-width);
  right: 0;
  min-height: 64px;
  background: #ffffff;
  border-bottom: 1px solid var(--md-gray-200);
  box-shadow: var(--md-shadow-sm);
  z-index: 100;
  display: flex;
  align-items: flex-start;
  padding: 8px calc(var(--md-spacing-unit) * 3);
  transition: left var(--md-transition);
}

[data-theme="dark"] .app-header {
  background-color: #1f2937;
  border-bottom-color: #374151;
}

.header-main {
  display: flex;
  align-items: flex-start;
  gap: calc(var(--md-spacing-unit) * 2);
  width: 100%;
  flex-wrap: wrap;
}

/* Hide sidebar toggle on desktop (sidebar always visible) */
.sidebar-toggle {
  display: none;
}

@media (max-width: 768px) {
  .app-header {
    left: 0;
  }

  /* Show sidebar toggle on mobile */
  .sidebar-toggle {
    display: block;
  }
}

/* Dashboard Grid */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: calc(var(--md-spacing-unit) * 3);
  margin-bottom: calc(var(--md-spacing-unit) * 3);
}

@media (max-width: 768px) {
  .dashboard-grid {
    grid-template-columns: 1fr;
    gap: calc(var(--md-spacing-unit) * 2);
  }
}

/* Status Indicators */
.status-indicator {
  display: inline-flex;
  align-items: center;
  gap: calc(var(--md-spacing-unit) * 0.5);
  padding: 0.375rem 0.75rem;
  border-radius: calc(var(--md-border-radius) * 3);
  font-size: calc(var(--md-font-size) * 0.875);
  font-weight: 500;
}

.status-indicator.status-success {
  background: rgba(16, 185, 129, 0.1);
  color: var(--md-success);
}

.status-indicator.status-warning {
  background: rgba(245, 158, 11, 0.1);
  color: var(--md-warning);
}

.status-indicator.status-danger {
  background: rgba(239, 68, 68, 0.1);
  color: var(--md-error);
}

.status-indicator.status-info {
  background: rgba(59, 130, 246, 0.1);
  color: var(--md-info);
}

.status-indicator::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

/* Progress Bars */
.progress {
  height: 8px;
  background: var(--md-gray-200);
  border-radius: calc(var(--md-border-radius) * 2);
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: var(--md-primary);
  border-radius: calc(var(--md-border-radius) * 2);
  transition: width var(--md-transition);
}

.progress-bar.progress-success {
  background: var(--md-success);
}

.progress-bar.progress-warning {
  background: var(--md-warning);
}

.progress-bar.progress-danger {
  background: var(--md-error);
}

/* Tooltips */
.tooltip {
  position: relative;
  display: inline-block;
}

.tooltip-text {
  visibility: hidden;
  position: absolute;
  bottom: 125%;
  left: 50%;
  transform: translateX(-50%);
  padding: calc(var(--md-spacing-unit) * 1) calc(var(--md-spacing-unit) * 1.5);
  background: var(--md-gray-900);
  color: #ffffff;
  font-size: calc(var(--md-font-size) * 0.75);
  border-radius: var(--md-border-radius);
  white-space: nowrap;
  z-index: 1000;
  opacity: 0;
  transition: opacity var(--md-transition-fast);
}

.tooltip:hover .tooltip-text {
  visibility: visible;
  opacity: 1;
}

.tooltip-text::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 4px solid transparent;
  border-top-color: var(--md-gray-900);
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.625rem;
  font-size: calc(var(--md-font-size) * 0.75);
  font-weight: 600;
  border-radius: calc(var(--md-border-radius) * 2);
  text-transform: uppercase;
  letter-spacing: 0.025em;
}

.badge-primary {
  background: var(--md-primary);
  color: #ffffff;
}

.badge-secondary {
  background: var(--md-secondary);
  color: #ffffff;
}

.badge-success {
  background: var(--md-success);
  color: #ffffff;
}

.badge-warning {
  background: var(--md-warning);
  color: var(--md-gray-900);
}

.badge-danger {
  background: var(--md-error);
  color: #ffffff;
}

.badge-light {
  background: var(--md-gray-200);
  color: var(--md-gray-900);
}

/* Loading Spinner */
.spinner {
  display: inline-block;
  width: 40px;
  height: 40px;
  border: 4px solid var(--md-gray-200);
  border-top-color: var(--md-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.spinner-sm {
  width: 20px;
  height: 20px;
  border-width: 2px;
}

.spinner-lg {
  width: 60px;
  height: 60px;
  border-width: 6px;
}

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

/* Loading Overlay */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition: all var(--md-transition);
}

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

/* Empty States */
.empty-state {
  text-align: center;
  padding: calc(var(--md-spacing-unit) * 6) calc(var(--md-spacing-unit) * 3);
}

.empty-state-icon {
  font-size: 4rem;
  color: var(--md-gray-400);
  margin-bottom: calc(var(--md-spacing-unit) * 2);
}

.empty-state-title {
  font-size: calc(var(--md-font-size) * 1.5);
  font-weight: 600;
  color: var(--md-gray-900);
  margin-bottom: calc(var(--md-spacing-unit) * 1);
}

.empty-state-text {
  font-size: var(--md-font-size);
  color: var(--md-gray-600);
  margin-bottom: calc(var(--md-spacing-unit) * 3);
}

/* Alerts */
.alert {
  padding: calc(var(--md-spacing-unit) * 2) calc(var(--md-spacing-unit) * 3);
  border-radius: var(--md-border-radius);
  border: 1px solid transparent;
  margin-bottom: calc(var(--md-spacing-unit) * 2);
}

.alert-success {
  background: rgba(16, 185, 129, 0.1);
  border-color: var(--md-success);
  color: var(--md-success);
}

.alert-warning {
  background: rgba(245, 158, 11, 0.1);
  border-color: var(--md-warning);
  color: #d97706;
}

.alert-danger {
  background: rgba(239, 68, 68, 0.1);
  border-color: var(--md-error);
  color: var(--md-error);
}

.alert-info {
  background: rgba(59, 130, 246, 0.1);
  border-color: var(--md-info);
  color: var(--md-info);
}

/* Divider */
.divider {
  height: 1px;
  background: var(--md-gray-200);
  margin: calc(var(--md-spacing-unit) * 3) 0;
}

.divider-vertical {
  width: 1px;
  height: auto;
  background: var(--md-gray-200);
  margin: 0 calc(var(--md-spacing-unit) * 2);
}

/* Toasts */
.toast {
  position: fixed;
  bottom: calc(var(--md-spacing-unit) * 3);
  right: calc(var(--md-spacing-unit) * 3);
  background: var(--md-gray-900);
  color: #ffffff;
  padding: calc(var(--md-spacing-unit) * 2) calc(var(--md-spacing-unit) * 3);
  border-radius: var(--md-border-radius);
  box-shadow: var(--md-shadow-xl);
  z-index: 10000;
  opacity: 0;
  transform: translateY(100%);
  transition: all var(--md-transition);
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

.toast.success {
  background: var(--md-success);
}

.toast.error {
  background: var(--md-error);
}

.toast.warning {
  background: var(--md-warning);
  color: var(--md-gray-900);
}

.toast.info {
  background: var(--md-info);
}

/* ========================================
 * UTILITY CLASSES
 * ======================================== */

/* Flexbox */
.flex {
  display: flex;
}

.flex-column {
  flex-direction: column;
}

.flex-wrap {
  flex-wrap: wrap;
}

.align-items-center {
  align-items: center;
}

.align-items-start {
  align-items: flex-start;
}

.align-items-end {
  align-items: flex-end;
}

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

.justify-content-center {
  justify-content: center;
}

.justify-content-end {
  justify-content: flex-end;
}

/* Gaps */
.gap-xs { gap: calc(var(--md-spacing-unit) * 0.5); }
.gap-sm { gap: calc(var(--md-spacing-unit) * 1); }
.gap-md { gap: calc(var(--md-spacing-unit) * 2); }
.gap-lg { gap: calc(var(--md-spacing-unit) * 3); }
.gap-xl { gap: calc(var(--md-spacing-unit) * 4); }

/* Margins */
.mt-sm { margin-top: calc(var(--md-spacing-unit) * 1); }
.mt-md { margin-top: calc(var(--md-spacing-unit) * 2); }
.mt-lg { margin-top: calc(var(--md-spacing-unit) * 3); }
.mt-xl { margin-top: calc(var(--md-spacing-unit) * 4); }

.mb-sm { margin-bottom: calc(var(--md-spacing-unit) * 1); }
.mb-md { margin-bottom: calc(var(--md-spacing-unit) * 2); }
.mb-lg { margin-bottom: calc(var(--md-spacing-unit) * 3); }
.mb-xl { margin-bottom: calc(var(--md-spacing-unit) * 4); }

.ml-sm { margin-left: calc(var(--md-spacing-unit) * 1); }
.ml-md { margin-left: calc(var(--md-spacing-unit) * 2); }
.ml-lg { margin-left: calc(var(--md-spacing-unit) * 3); }
.ml-xl { margin-left: calc(var(--md-spacing-unit) * 4); }

.mr-sm { margin-right: calc(var(--md-spacing-unit) * 1); }
.mr-md { margin-right: calc(var(--md-spacing-unit) * 2); }
.mr-lg { margin-right: calc(var(--md-spacing-unit) * 3); }
.mr-xl { margin-right: calc(var(--md-spacing-unit) * 4); }

/* Paddings */
.p-sm { padding: calc(var(--md-spacing-unit) * 1); }
.p-md { padding: calc(var(--md-spacing-unit) * 2); }
.p-lg { padding: calc(var(--md-spacing-unit) * 3); }
.p-xl { padding: calc(var(--md-spacing-unit) * 4); }

/* Text Utilities */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.font-medium { font-weight: 500; }
.font-normal { font-weight: 400; }

/* Display */
.block { display: block; }
.inline-block { display: inline-block; }
.hidden { display: none; }

/* ========================================
 * PRINT STYLES
 * ======================================== */

@media print {
  .app-header,
  .app-sidebar,
  .sidebar-overlay,
  .button,
  .modal,
  .modal-backdrop {
    display: none !important;
  }

  .app-main {
    margin-left: 0;
    padding: 0;
  }

  .card-section, .page-card {
    box-shadow: none;
    border: 1px solid #000;
  }
}