/* ===================================================================
   Lee Pickup Ceramics - CMS Styles
   Modern CSS architecture with design system
   =================================================================== */

/* CSS Custom Properties (Design System) */
:root {
  /* Colors */
  --color-primary: #3b82f6;
  --color-primary-hover: #2563eb;
  --color-primary-light: #eff6ff;
  --color-secondary: #6b7280;
  --color-success: #10b981;
  --color-success-light: #d1fae5;
  --color-success-text: #065f46;
  --color-danger: #dc2626;
  --color-danger-light: #fee2e2;
  --color-danger-text: #991b1b;
  --color-warning: #f59e0b;
  
  /* Neutrals */
  --color-text: #1f2937;
  --color-text-muted: #6b7280;
  --color-text-light: #9ca3af;
  --color-background: #ffffff;
  --color-background-muted: #f9fafb;
  --color-background-hover: #f3f4f6;
  --color-border: #d1d5db;
  --color-border-light: #e5e7eb;
  --color-shadow: rgba(0, 0, 0, 0.1);
  
  /* Typography */
  --font-family-base: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-family-mono: ui-monospace, SFMono-Regular, 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
  
  --font-size-xs: 0.75rem;     /* 12px */
  --font-size-sm: 0.875rem;    /* 14px */
  --font-size-base: 1rem;      /* 16px */
  --font-size-lg: 1.125rem;    /* 18px */
  --font-size-xl: 1.25rem;     /* 20px */
  --font-size-2xl: 1.5rem;     /* 24px */
  
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;
  
  /* Spacing */
  --space-1: 0.25rem;   /* 4px */
  --space-2: 0.5rem;    /* 8px */
  --space-3: 0.75rem;   /* 12px */
  --space-4: 1rem;      /* 16px */
  --space-5: 1.25rem;   /* 20px */
  --space-6: 1.5rem;    /* 24px */
  --space-8: 2rem;      /* 32px */
  --space-10: 2.5rem;   /* 40px */
  --space-12: 3rem;     /* 48px */
  
  /* Border radius */
  --radius-sm: 0.25rem;  /* 4px */
  --radius-base: 0.375rem; /* 6px */
  --radius-md: 0.5rem;   /* 8px */
  --radius-lg: 0.75rem;  /* 12px */
  --radius-full: 50%;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 var(--color-shadow);
  --shadow-base: 0 1px 3px 0 var(--color-shadow), 0 1px 2px -1px var(--color-shadow);
  --shadow-md: 0 4px 6px -1px var(--color-shadow), 0 2px 4px -2px var(--color-shadow);
  --shadow-lg: 0 10px 15px -3px var(--color-shadow), 0 4px 6px -4px var(--color-shadow);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;
}

/* ===================================================================
   Base Styles & Reset
   =================================================================== */

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

body {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background-color: var(--color-background-muted);
}

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

.cms-container {
  max-inline-size: 1200px;
  margin-inline: auto;
  padding: var(--space-5);
}

.cms-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-block-end: var(--space-5);
  margin-block-end: var(--space-8);
  border-block-end: 1px solid var(--color-border-light);
}

.cms-nav {
  display: flex;
  gap: var(--space-5);
  margin-block-end: var(--space-8);
}

.cms-section {
  display: none;
  background-color: var(--color-background);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  box-shadow: var(--shadow-base);
}

.cms-section--active {
  display: block !important;
}

/* ===================================================================
   Button Components
   =================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  line-height: 1;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: var(--radius-base);
  cursor: pointer;
  transition: all var(--transition-fast);
  
  /* Default: Primary button */
  background-color: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

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

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

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

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

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

.btn--outline:hover {
  background-color: var(--color-primary-light);
}

.btn--small {
  padding: var(--space-2) var(--space-3);
  font-size: var(--font-size-xs);
}

.btn--large {
  padding: var(--space-4) var(--space-6);
  font-size: var(--font-size-base);
}

/* Navigation buttons */
.nav-btn {
  background-color: transparent;
  color: var(--color-text-muted);
  border-color: var(--color-border);
}

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

.nav-btn--active {
  background-color: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

/* ===================================================================
   Form Components
   =================================================================== */

.form-group {
  margin-block-end: var(--space-5);
}

.form-label {
  display: block;
  margin-block-end: var(--space-2);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
}

.form-input,
.form-textarea,
.form-select {
  display: block;
  inline-size: 100%;
  width: 100%; /* Fallback for older browsers */
  padding: var(--space-3);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-tight);
  color: var(--color-text);
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

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

.form-textarea {
  block-size: 8em;
  resize: vertical;
}

.form-textarea--large {
  block-size: 12em;
}

.form-textarea--code {
  font-family: var(--font-family-mono);
  font-size: var(--font-size-xs);
}

/* Checkbox component */
.checkbox-group {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.checkbox {
  flex-shrink: 0;
}

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

/* ===================================================================
   Category Grid Component
   =================================================================== */

.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-3);
  margin-block-start: var(--space-2);
}

.category-option {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3);
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  min-block-size: 3rem;
}

.category-option:hover {
  border-color: var(--color-primary);
  background-color: var(--color-primary-light);
}

.category-option--selected {
  border-color: var(--color-primary);
  background-color: var(--color-primary-light);
}

.category-option__checkbox {
  flex-shrink: 0;
  margin: 0;
}

.category-option__label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.category-option--selected .category-option__label {
  color: var(--color-primary);
  font-weight: var(--font-weight-semibold);
}

/* ===================================================================
   Collections Editor Styles
   =================================================================== */

.collections-workspace {
  display: flex;
  gap: var(--space-6);
  margin-block-start: var(--space-4);
  min-block-size: 600px;
}

.collections-list-pane {
  flex: 0 0 360px;
  background: var(--color-background);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-base);
  max-block-size: 80vh;
  overflow-y: auto;
}

.collections-edit-pane {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.collection-form-panel {
  background: var(--color-background);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-base);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.collection-form-body {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-6);
}

.collection-form-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-4);
}

.collection-images-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

/* Responsive layout: stack panes on mobile */
@media (max-width: 900px) {
  .collections-workspace {
    flex-direction: column;
    min-block-size: auto;
  }
  .collections-list-pane {
    flex: 1 1 auto;
    inline-size: 100%;
    max-block-size: none;
    margin-block-end: var(--space-6);
  }
  .collections-edit-pane {
    inline-size: 100%;
  }
  .collection-form-grid {
    grid-template-columns: 1fr;
  }
  .collection-images-grid {
    grid-template-columns: 1fr;
  }
}

.image-preview {
  inline-size: 100%;
  block-size: 140px;
  border: 2px dashed var(--color-border-light);
  border-radius: var(--radius-base);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.image-preview img {
  inline-size: 100%;
  block-size: 100%;
  object-fit: cover;
  border-radius: 4px;
}

.form-actions {
  display: flex;
  gap: var(--space-3);
  justify-content: flex-end;
  padding-block-start: var(--space-6);
  border-block-start: 1px solid var(--color-border-light);
}


/* Collections list (left pane) */
.collection-item {
  background: var(--color-background-muted);
  margin-block-end: var(--space-3);
  border-radius: var(--radius-base);
  padding: var(--space-4);
  border: 2px solid transparent;
  position: relative;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: var(--space-3);
  align-items: start;
}
.collection-item:hover {
  border-color: var(--color-border);
}
.collection-item--active {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}
.collection-item__thumb {
  inline-size: 60px;
  block-size: 60px;
  object-fit: cover;
  border-radius: var(--radius-sm);
}
.collection-item__title {
  margin: 0 0 var(--space-2) 0;
  font-size: 1rem;
  color: var(--color-text);
}
.collection-item__desc {
  margin: 0 0 var(--space-3) 0;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.collection-item__actions {
  display: flex;
  gap: var(--space-2);
}

/* Pieces grid */
.pieces-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
  margin-block-start: var(--space-4);
  align-items: start;
}

/* Piece card: vertical, mobile-first stack (image → content → actions) */
.piece-card {
  background: var(--color-background);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: auto 1fr auto;
  gap: var(--space-4);
  align-items: start;
  width: 100%;
  min-block-size: 140px;
  font-size: var(--font-size-base);
  overflow: hidden;
}

.piece-card__img {
  inline-size: 100%;
  block-size: 180px;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

.piece-card__content { display: flex; flex-direction: column; gap: var(--space-2); }
.piece-card__actions { display: flex; flex-direction: row; gap: var(--space-2); flex-wrap: wrap; justify-content: flex-end; margin-block-start: var(--space-2); }

.piece-card__title {
  margin: 0 0 var(--space-2) 0;
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-base);
}

.piece-card__meta {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-block-end: var(--space-2);
}

.piece-card__desc {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Keep quick edit controls tidy */
.piece-card__quick {
  display: flex;
  gap: var(--space-3);
  align-items: center;
  margin-block-start: var(--space-2);
  flex-wrap: wrap;
}
.piece-card__quick .quick-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
}
.input-sm { inline-size: 100px; height: 32px; }
.select-sm { inline-size: auto; height: 32px; }

.status-badge {
  padding: 0.25rem 0.5rem;
  border-radius: 12px;
  font-weight: 500;
  font-size: 0.75rem;
}
.status-available { background: var(--color-success-light); color: var(--color-success-text); border: 1px solid var(--color-success); }
.status-sold { background: var(--color-danger-light); color: var(--color-danger-text); border: 1px solid var(--color-danger); }
.status-reserved { background: #fef3c7; color: #92400e; border: 1px solid #f59e0b; }
.status-not-for-sale { background: var(--color-background-hover); color: var(--color-text); border: 1px solid var(--color-border); }

/* Narrow screens: single column grid (cards already vertical) */
@media (max-width: 900px) {
  .pieces-grid { grid-template-columns: 1fr; }
}

/* ===================================================================
   Modal Components
   =================================================================== */

.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal {
  background-color: var(--color-background);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  max-inline-size: 90vw;
  max-block-size: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.modal--small {
  inline-size: 400px;
}

.modal--medium {
  inline-size: 600px;
}

.modal--large {
  inline-size: 800px;
}

.modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-6);
  background-color: var(--color-background-muted);
  border-block-end: 1px solid var(--color-border-light);
}

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

.modal__close {
  background: none;
  border: none;
  font-size: var(--font-size-2xl);
  color: var(--color-text-muted);
  cursor: pointer;
  inline-size: 2rem;
  block-size: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

.modal__close:hover {
  background-color: var(--color-background-hover);
  color: var(--color-text);
}

.modal__body {
  padding: var(--space-6);
  overflow-y: auto;
  flex: 1;
}

.modal__footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-6);
  border-block-start: 1px solid var(--color-border-light);
}

/* ===================================================================
   Image Gallery Components
   =================================================================== */

.image-gallery,
.image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--space-4);
  margin-block-start: var(--space-4);
}

.image-item {
  position: relative;
  background-color: var(--color-background);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

.image-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.image-item__image {
  inline-size: 100%;
  block-size: 150px;
  object-fit: contain; /* preserve aspect ratio without cropping */
  background-color: var(--color-background-muted);
}

.image-item__overlay {
  position: absolute;
  inset-block-end: 0;
  inset-inline: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
  color: white;
  padding: var(--space-4) var(--space-3) var(--space-3);
  font-size: var(--font-size-xs);
}

.image-item__title {
  font-weight: var(--font-weight-medium);
  margin-block-end: var(--space-1);
}

.image-item__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
}

.image-tag {
  background-color: rgba(255, 255, 255, 0.2);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  font-size: 0.625rem;
}

/* Fit label tag */
.image-tag--fit {
  background-color: rgba(59, 130, 246, 0.25);
}

.image-item__actions {
  position: absolute;
  inset-block-start: var(--space-2);
  inset-inline-end: var(--space-2);
  display: flex;
  gap: var(--space-1);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.image-item:hover .image-item__actions {
  opacity: 1;
}

/* ===================================================================
   Filter Components
   =================================================================== */

.filter-bar {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-block-end: var(--space-4);
  flex-wrap: wrap;
}

.filter-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.filter-tag {
  padding: var(--space-2) var(--space-3);
  background-color: var(--color-background-hover);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-tag:hover {
  background-color: var(--color-primary-light);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

 .filter-tag--active,
 .filter-tag.active {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
}

/* ===================================================================
   Status & Feedback Components
   =================================================================== */

/* Simple spinner */
.spinner {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid var(--color-primary);
  border-right-color: transparent;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  vertical-align: -2px;
  margin-right: var(--space-2);
}
@keyframes spin { to { transform: rotate(360deg); } }

.status {
  padding: var(--space-3);
  border-radius: var(--radius-base);
  font-size: var(--font-size-sm);
  margin-block: var(--space-3);
}

.status--success {
  background-color: var(--color-success-light);
  color: var(--color-success-text);
  border: 1px solid var(--color-success);
}

.status--error {
  background-color: var(--color-danger-light);
  color: var(--color-danger-text);
  border: 1px solid var(--color-danger);
}

.status--loading {
  background-color: var(--color-background-hover);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}

/* ===================================================================
   Upload Components
   =================================================================== */

.upload-area {
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  text-align: center;
  background-color: var(--color-background-muted);
  cursor: pointer;
  transition: all var(--transition-base);
}

.upload-area:hover,
.upload-area--dragover {
  border-color: var(--color-primary);
  background-color: var(--color-primary-light);
}

.upload-area__input {
  display: none;
}

.upload-progress {
  margin-block-start: var(--space-4);
}

.progress-bar {
  inline-size: 100%;
  block-size: 8px;
  background-color: var(--color-background-hover);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.progress-fill {
  block-size: 100%;
  background-color: var(--color-primary);
  transition: inline-size var(--transition-base);
}

/* ===================================================================
   Login Screen
   =================================================================== */

.login-wrapper {
  min-block-size: 100vh;
  display: grid;
  place-items: center;
  background-color: var(--color-background-muted);
  padding: var(--space-6);
}

.login-card {
  inline-size: 100%;
  max-inline-size: 420px;
  background: var(--color-background);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-6);
}

login-card h1 {
  font-size: var(--font-size-xl);
  margin-block-end: var(--space-2);
}

.login-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-block-end: var(--space-3);
}

.login-icon {
  inline-size: 44px;
  block-size: 44px;
  border-radius: var(--radius-md);
  background: var(--color-primary-light);
  display: grid;
  place-items: center;
  color: var(--color-primary);
}

.login-icon svg {
  inline-size: 26px;
  block-size: 26px;
}

.login-card p {
  color: var(--color-text-muted);
  margin-block-end: var(--space-5);
}

/* ===================================================================
   Utility Classes
   =================================================================== */

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

.hidden {
  display: none;
}

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

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

.text-small {
  font-size: var(--font-size-sm);
}

.font-mono {
  font-family: var(--font-family-mono);
}

.mt-auto {
  margin-block-start: auto;
}

/* ===================================================================
   Responsive Design
   =================================================================== */

@media (max-width: 768px) {
  .cms-container {
    padding: var(--space-3);
  }
  
  .cms-header {
    flex-direction: column;
    gap: var(--space-3);
    align-items: stretch;
    text-align: center;
  }
  
  .cms-nav {
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .category-grid {
    grid-template-columns: 1fr;
  }
  
  .filter-bar {
    flex-direction: column;
    align-items: stretch;
  }
  
  .modal {
    inline-size: 95vw;
    max-block-size: 95vh;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ===================================================================
   Critical overrides for section navigation functionality 
   =================================================================== */

/* Ensure first section is visible on page load */
.cms-section:first-of-type {
  display: block !important;
}

/* Force section visibility states */
.cms-section.hidden {
  display: none !important;
}

.cms-section.cms-section--active {
  display: block !important;
}