/**
 * Reusable Utility Classes
 * 
 * Common patterns extracted from component styles.
 * Import this file after theme.css in main.tsx
 */

/* ============================================
   LAYOUT UTILITIES
   ============================================ */

/* Containers */
.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: var(--container-padding);
}

.container-full {
  width: 100%;
  padding: var(--spacing-md);
}

/* Centering */
.center-content {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
}

.flex-center {
  display: flex;
  justify-content: center;
  align-items: center;
}

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

.flex-start {
  display: flex;
  justify-content: flex-start;
  align-items: center;
}

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

.flex-1 {
  flex: 1;
}

/* ============================================
   CARD COMPONENTS
   ============================================ */

.card {
  background: var(--color-bg-surface);
  border-radius: var(--card-border-radius);
  padding: var(--card-padding);
  box-shadow: var(--shadow-card);
}

.card-elevated {
  background: var(--color-bg-surface);
  border-radius: var(--card-border-radius);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-lg);
}

.card-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-md);
  color: var(--color-text-primary);
}

/* ============================================
   BUTTON COMPONENTS
   ============================================ */

.btn {
  padding: var(--button-padding-y) var(--button-padding-x);
  border: none;
  border-radius: var(--button-border-radius);
  font-size: var(--font-size-base);
  font-weight: var(--button-font-weight);
  cursor: pointer;
  transition: var(--transition-base);
  text-align: center;
  display: inline-block;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-text-inverse);
}

.btn-primary:hover:not(:disabled) {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: var(--color-primary);
  color: var(--color-text-inverse);
}

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

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

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

.btn-success {
  background: var(--color-success);
  color: var(--color-text-inverse);
}

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

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: var(--border-width-thin) solid var(--color-primary);
}

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

.btn-ghost {
  background: var(--color-bg-surface);
  color: var(--color-text-primary);
  border: var(--border-width-thin) solid var(--color-border-medium);
}

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

.btn-sm {
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: var(--font-size-sm);
}

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

.btn-block {
  width: 100%;
  display: block;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* ============================================
   FORM COMPONENTS
   ============================================ */

.form-group {
  margin-bottom: var(--spacing-md);
}

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

.form-input {
  width: 100%;
  padding: var(--input-padding-y) var(--input-padding-x);
  border: var(--border-width-thin) solid var(--input-border-color);
  border-radius: var(--input-border-radius);
  font-size: var(--font-size-base);
  color: var(--color-text-primary);
  background: var(--color-bg-surface);
  transition: var(--transition-base);
  box-sizing: border-box;
}

.form-input:focus {
  outline: none;
  border-color: var(--input-focus-border-color);
  box-shadow: var(--input-focus-shadow);
}

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

.form-select {
  width: 100%;
  padding: var(--input-padding-y) var(--input-padding-x);
  border: var(--border-width-thin) solid var(--input-border-color);
  border-radius: var(--input-border-radius);
  font-size: var(--font-size-base);
  color: var(--color-text-primary);
  background: var(--color-bg-surface);
  cursor: pointer;
  transition: var(--transition-base);
}

.form-select:focus {
  outline: none;
  border-color: var(--input-focus-border-color);
  box-shadow: var(--input-focus-shadow);
}

/* ============================================
   MODAL COMPONENTS
   ============================================ */

.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--modal-backdrop-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-modal);
  padding: var(--spacing-md);
}

.modal {
  background: var(--modal-bg);
  border-radius: var(--modal-border-radius);
  padding: var(--modal-padding);
  max-width: var(--modal-max-width);
  width: 100%;
  box-shadow: var(--shadow-xl);
  animation: modalSlideIn 0.2s ease-out;
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.modal-header {
  margin-bottom: var(--spacing-lg);
}

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

.modal-content {
  margin-bottom: var(--spacing-lg);
}

.modal-actions {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.modal-actions .btn {
  flex: 1;
}

/* ============================================
   LIST COMPONENTS
   ============================================ */

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

.list-item {
  padding: var(--spacing-md);
  border: var(--border-width-thin) solid var(--color-border-light);
  border-radius: var(--border-radius-md);
  background: var(--color-bg-surface);
  margin-bottom: var(--spacing-sm);
  transition: var(--transition-base);
}

.list-item:hover {
  background: var(--color-bg-hover);
  border-color: var(--color-border-medium);
  transform: translateY(-1px);
}

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

/* ============================================
   IMAGE COMPONENTS
   ============================================ */

.image-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-surface);
  border: var(--border-width-medium) dashed var(--color-border-medium);
  border-radius: var(--border-radius-md);
  color: var(--color-text-muted);
  font-size: 2rem;
}

.image-thumbnail {
  width: 50px;
  height: 50px;
  border-radius: var(--border-radius-md);
  object-fit: cover;
  border: var(--border-width-thin) solid var(--color-border-light);
}

/* ============================================
   BADGE COMPONENTS
   ============================================ */

.badge {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  line-height: 1;
}

.badge-primary {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.badge-success {
  background: var(--color-success-light);
  color: var(--color-success);
}

.badge-danger {
  background: var(--color-danger-light);
  color: var(--color-danger);
}

.badge-warning {
  background: var(--color-warning-light);
  color: var(--color-warning);
}

.badge-secondary {
  background: var(--color-secondary-light);
  color: var(--color-secondary);
}

/* ============================================
   DIVIDER
   ============================================ */

.divider {
  border: none;
  border-top: var(--border-width-thin) solid var(--color-border-light);
  margin: var(--spacing-lg) 0;
}

.divider-thick {
  border-top-width: var(--border-width-medium);
}

/* ============================================
   SPACING HELPERS
   ============================================ */

.mt-0 { margin-top: 0 !important; }
.mt-1 { margin-top: var(--spacing-xs) !important; }
.mt-2 { margin-top: var(--spacing-sm) !important; }
.mt-3 { margin-top: var(--spacing-md) !important; }
.mt-4 { margin-top: var(--spacing-lg) !important; }

.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: var(--spacing-xs) !important; }
.mb-2 { margin-bottom: var(--spacing-sm) !important; }
.mb-3 { margin-bottom: var(--spacing-md) !important; }
.mb-4 { margin-bottom: var(--spacing-lg) !important; }

.ml-auto { margin-left: auto !important; }
.mr-auto { margin-right: auto !important; }

.p-0 { padding: 0 !important; }
.p-1 { padding: var(--spacing-xs) !important; }
.p-2 { padding: var(--spacing-sm) !important; }
.p-3 { padding: var(--spacing-md) !important; }
.p-4 { padding: var(--spacing-lg) !important; }

.px-0 { padding-left: 0 !important; padding-right: 0 !important; }
.px-1 { padding-left: var(--spacing-xs) !important; padding-right: var(--spacing-xs) !important; }
.px-2 { padding-left: var(--spacing-sm) !important; padding-right: var(--spacing-sm) !important; }
.px-3 { padding-left: var(--spacing-md) !important; padding-right: var(--spacing-md) !important; }
.px-4 { padding-left: var(--spacing-lg) !important; padding-right: var(--spacing-lg) !important; }

.py-0 { padding-top: 0 !important; padding-bottom: 0 !important; }
.py-1 { padding-top: var(--spacing-xs) !important; padding-bottom: var(--spacing-xs) !important; }
.py-2 { padding-top: var(--spacing-sm) !important; padding-bottom: var(--spacing-sm) !important; }
.py-3 { padding-top: var(--spacing-md) !important; padding-bottom: var(--spacing-md) !important; }
.py-4 { padding-top: var(--spacing-lg) !important; padding-bottom: var(--spacing-lg) !important; }

/* ============================================
   TEXT UTILITIES
   ============================================ */

.text-xs { font-size: var(--font-size-xs) !important; }
.text-sm { font-size: var(--font-size-sm) !important; }
.text-base { font-size: var(--font-size-base) !important; }
.text-lg { font-size: var(--font-size-lg) !important; }
.text-xl { font-size: var(--font-size-xl) !important; }
.text-2xl { font-size: var(--font-size-2xl) !important; }

.text-center { text-align: center !important; }
.text-left { text-align: left !important; }
.text-right { text-align: right !important; }

.text-primary { color: var(--color-primary) !important; }
.text-secondary { color: var(--color-text-secondary) !important; }
.text-muted { color: var(--color-text-muted) !important; }
.text-danger { color: var(--color-danger) !important; }
.text-success { color: var(--color-success) !important; }
.text-warning { color: var(--color-warning) !important; }

.font-normal { font-weight: var(--font-weight-normal) !important; }
.font-medium { font-weight: var(--font-weight-medium) !important; }
.font-semibold { font-weight: var(--font-weight-semibold) !important; }
.font-bold { font-weight: var(--font-weight-bold) !important; }

.text-uppercase { text-transform: uppercase !important; }
.text-lowercase { text-transform: lowercase !important; }
.text-capitalize { text-transform: capitalize !important; }

.text-truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ============================================
   DISPLAY & VISIBILITY
   ============================================ */

.d-none { display: none !important; }
.d-block { display: block !important; }
.d-inline { display: inline !important; }
.d-inline-block { display: inline-block !important; }
.d-flex { display: flex !important; }
.d-grid { display: grid !important; }

.hidden { visibility: hidden !important; }
.visible { visibility: visible !important; }

/* ============================================
   BORDER UTILITIES
   ============================================ */

.border { border: var(--border-width-thin) solid var(--color-border-light) !important; }
.border-0 { border: none !important; }
.border-top { border-top: var(--border-width-thin) solid var(--color-border-light) !important; }
.border-bottom { border-bottom: var(--border-width-thin) solid var(--color-border-light) !important; }

.rounded { border-radius: var(--border-radius-md) !important; }
.rounded-sm { border-radius: var(--border-radius-sm) !important; }
.rounded-lg { border-radius: var(--border-radius-lg) !important; }
.rounded-full { border-radius: var(--border-radius-full) !important; }

/* ============================================
   SHADOW UTILITIES
   ============================================ */

.shadow-none { box-shadow: none !important; }
.shadow-sm { box-shadow: var(--shadow-sm) !important; }
.shadow { box-shadow: var(--shadow-md) !important; }
.shadow-lg { box-shadow: var(--shadow-lg) !important; }
.shadow-xl { box-shadow: var(--shadow-xl) !important; }

/* ============================================
   INTERACTION
   ============================================ */

.cursor-pointer { cursor: pointer !important; }
.cursor-not-allowed { cursor: not-allowed !important; }
.cursor-default { cursor: default !important; }

.pointer-events-none { pointer-events: none !important; }
.user-select-none { user-select: none !important; }

/* ============================================
   POSITION
   ============================================ */

.position-relative { position: relative !important; }
.position-absolute { position: absolute !important; }
.position-fixed { position: fixed !important; }
.position-sticky { position: sticky !important; }

/* ============================================
   OVERFLOW
   ============================================ */

.overflow-hidden { overflow: hidden !important; }
.overflow-auto { overflow: auto !important; }
.overflow-scroll { overflow: scroll !important; }

/* ============================================
   WIDTH & HEIGHT
   ============================================ */

.w-100 { width: 100% !important; }
.w-auto { width: auto !important; }
.h-100 { height: 100% !important; }
.h-auto { height: auto !important; }

.min-h-screen { min-height: 100vh !important; }

/* ============================================
   RESPONSIVE UTILITIES
   ============================================ */

@media (max-width: 480px) {
  .mobile-hidden { display: none !important; }
  .mobile-block { display: block !important; }
  .mobile-text-center { text-align: center !important; }
}

@media (min-width: 481px) {
  .desktop-hidden { display: none !important; }
}