/* ===== MATERIAL DESIGN 3 - PHOTO ARCHIVE ===== */

/* ===== CSS RESET & BASE ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* Material Design 3 - Color Palette */
  --md-primary: #1976d2;
  --md-primary-container: #e3f2fd;
  --md-on-primary: #ffffff;
  --md-on-primary-container: #0d47a1;

  --md-secondary: #00897b;
  --md-secondary-container: #e0f2f1;
  --md-on-secondary: #ffffff;

  --md-surface: #ffffff;
  --md-surface-variant: #f5f5f5;
  --md-surface-container: #fafafa;
  --md-surface-container-high: #eeeeee;
  --md-on-surface: #1c1b1f;
  --md-on-surface-variant: #49454f;

  --md-outline: #e0e0e0;
  --md-outline-variant: #f5f5f5;

  --md-background: #fefefe;
  --md-on-background: #1c1b1f;

  --md-error: #ba1a1a;
  --md-on-error: #ffffff;
  --md-success: #2e7d32;
  --md-warning: #f57c00;

  /* Material Elevation - Shadows */
  --md-elevation-0: none;
  --md-elevation-1: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --md-elevation-2: 0 1px 3px 0 rgba(0, 0, 0, 0.1),
    0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --md-elevation-3: 0 4px 6px -1px rgba(0, 0, 0, 0.1),
    0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --md-elevation-4: 0 10px 15px -3px rgba(0, 0, 0, 0.1),
    0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --md-elevation-5: 0 20px 25px -5px rgba(0, 0, 0, 0.1),
    0 10px 10px -5px rgba(0, 0, 0, 0.04);

  /* Material Spacing - 4dp grid */
  --md-spacing-1: 4px;
  --md-spacing-2: 8px;
  --md-spacing-3: 12px;
  --md-spacing-4: 16px;
  --md-spacing-5: 20px;
  --md-spacing-6: 24px;
  --md-spacing-8: 32px;
  --md-spacing-10: 40px;
  --md-spacing-12: 48px;

  /* Material Shape - Border Radius */
  --md-shape-none: 0;
  --md-shape-xs: 4px;
  --md-shape-sm: 8px;
  --md-shape-md: 12px;
  --md-shape-lg: 16px;
  --md-shape-xl: 28px;
  --md-shape-full: 9999px;

  /* Material Motion - Easing */
  --md-easing-standard: cubic-bezier(0.4, 0, 0.2, 1);
  --md-easing-emphasized: cubic-bezier(0.2, 0, 0, 1);
  --md-duration-short: 200ms;
  --md-duration-medium: 300ms;
  --md-duration-long: 400ms;
}

body {
  font-family: "Google Sans Flex", -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  background: var(--md-background);
  color: var(--md-on-background);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ===== MATERIAL SYMBOLS ICONS ===== */
.material-symbols-outlined {
  font-family: "Material Symbols Outlined";
  font-weight: normal;
  font-style: normal;
  font-size: 24px;
  line-height: 1;
  letter-spacing: normal;
  text-transform: none;
  display: inline-block;
  white-space: nowrap;
  word-wrap: normal;
  direction: ltr;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: "liga";
  vertical-align: middle;
}

.brand-icon.material-symbols-outlined {
  font-size: 28px;
}

.label-icon.material-symbols-outlined {
  font-size: 20px;
}

.view-icon.material-symbols-outlined {
  font-size: 48px;
}

.empty-icon .material-symbols-outlined {
  font-size: 80px;
}

/* ===== TOP APP BAR (Navbar) ===== */
.navbar {
  background: var(--md-surface);
  border-bottom: 1px solid var(--md-outline);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--md-elevation-2);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--md-spacing-4);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-brand {
  font-size: 1.375rem;
  font-weight: 500;
  color: var(--md-on-surface);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: var(--md-spacing-2);
  transition: opacity var(--md-duration-short) var(--md-easing-standard);
}

.nav-brand:hover {
  opacity: 0.8;
}

.brand-icon {
  font-size: 1.75rem;
}

.nav-links {
  display: flex;
  gap: var(--md-spacing-3);
  align-items: center;
}

.nav-link {
  color: var(--md-on-surface-variant);
  text-decoration: none;
  padding: var(--md-spacing-2) var(--md-spacing-4);
  border-radius: var(--md-shape-full);
  transition: all var(--md-duration-short) var(--md-easing-standard);
  font-weight: 500;
  font-size: 0.875rem;
}

.nav-link:hover {
  background: var(--md-surface-variant);
  color: var(--md-on-surface);
}

/* Logout button styling */
.nav-link.logout-btn:hover {
  background: #ffebee;
  color: var(--md-error);
}

/* ===== MATERIAL BUTTONS ===== */
.btn-primary {
  background: var(--md-primary);
  color: var(--md-on-primary);
  padding: var(--md-spacing-2) var(--md-spacing-6);
  border-radius: var(--md-shape-full);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.875rem;
  border: none;
  cursor: pointer;
  transition: all var(--md-duration-short) var(--md-easing-standard);
  box-shadow: var(--md-elevation-1);
  display: inline-flex;
  align-items: center;
  gap: var(--md-spacing-2);
}

.btn-primary:hover {
  box-shadow: var(--md-elevation-2);
  background: #1565c0;
}

.btn-primary:active {
  box-shadow: var(--md-elevation-1);
}

.btn-secondary {
  background: transparent;
  color: var(--md-primary);
  padding: var(--md-spacing-2) var(--md-spacing-6);
  border-radius: var(--md-shape-full);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.875rem;
  border: 1px solid var(--md-outline);
  cursor: pointer;
  transition: all var(--md-duration-short) var(--md-easing-standard);
  display: inline-flex;
  align-items: center;
  gap: var(--md-spacing-2);
}

.btn-secondary:hover {
  background: var(--md-primary-container);
  border-color: var(--md-primary);
}

.btn-danger {
  background: var(--md-error);
  color: var(--md-on-error);
  padding: var(--md-spacing-2) var(--md-spacing-6);
  border-radius: var(--md-shape-full);
  font-weight: 500;
  font-size: 0.875rem;
  border: none;
  cursor: pointer;
  transition: all var(--md-duration-short) var(--md-easing-standard);
  box-shadow: var(--md-elevation-1);
}

.btn-danger:hover {
  box-shadow: var(--md-elevation-2);
  background: #a31515;
}

.btn-large {
  padding: var(--md-spacing-4) var(--md-spacing-8);
  font-size: 1rem;
}

.btn-edit {
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  padding: var(--md-spacing-2) var(--md-spacing-4);
  border-radius: var(--md-shape-sm);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all var(--md-duration-short) var(--md-easing-standard);
  display: inline-flex;
  align-items: center;
  gap: var(--md-spacing-2);
}

.btn-edit:hover {
  background: #bbdefb;
}

/* ===== MAIN CONTENT ===== */
.main-content {
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--md-spacing-8) var(--md-spacing-4);
  min-height: calc(100vh - 200px);
}

/* ===== FLASH MESSAGES ===== */
.flash-messages {
  margin-bottom: var(--md-spacing-6);
}

.flash-message {
  padding: var(--md-spacing-4) var(--md-spacing-6);
  border-radius: var(--md-shape-sm);
  margin-bottom: var(--md-spacing-3);
  display: flex;
  justify-content: space-between;
  align-items: center;
  animation: slideIn var(--md-duration-medium) var(--md-easing-emphasized);
}

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

.flash-success {
  background: #e8f5e9;
  border-left: 4px solid var(--md-success);
  color: #1b5e20;
}

.flash-error {
  background: #ffebee;
  border-left: 4px solid var(--md-error);
  color: #b71c1c;
}

.flash-close {
  background: none;
  border: none;
  color: inherit;
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.6;
  transition: opacity var(--md-duration-short);
}

.flash-close:hover {
  opacity: 1;
}

/* ===== GALLERY ===== */
.gallery-header {
  margin-bottom: var(--md-spacing-10);
  text-align: center;
}

.gallery-header h1 {
  font-size: 2.5rem;
  font-weight: 400;
  color: var(--md-on-background);
  margin-bottom: var(--md-spacing-6);
  letter-spacing: -0.5px;
}

.search-box {
  max-width: 600px;
  margin: 0 auto;
}

.search-box form {
  display: flex;
  gap: var(--md-spacing-2);
}

.search-input {
  flex: 1;
  padding: var(--md-spacing-4);
  background: var(--md-surface);
  border: 1px solid var(--md-outline);
  border-radius: var(--md-shape-full);
  color: var(--md-on-surface);
  font-size: 1rem;
  transition: all var(--md-duration-short) var(--md-easing-standard);
  font-family: inherit;
}

.search-input:focus {
  outline: none;
  border-color: var(--md-primary);
  box-shadow: 0 0 0 2px var(--md-primary-container);
}

.search-btn {
  padding: var(--md-spacing-4) var(--md-spacing-6);
  background: var(--md-primary);
  border: none;
  border-radius: var(--md-shape-full);
  color: var(--md-on-primary);
  font-size: 1.2rem;
  cursor: pointer;
  transition: all var(--md-duration-short) var(--md-easing-standard);
  box-shadow: var(--md-elevation-1);
}

.search-btn:hover {
  box-shadow: var(--md-elevation-2);
  background: #1565c0;
}

/* ===== MASONRY GRID ===== */
.masonry-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  padding: 0;
}

.masonry-item {
  position: relative;
  overflow: hidden;
  background: var(--md-surface-variant);
  cursor: pointer;
  width: calc(25% - 3.75px);
  margin-bottom: 5px;
  border-radius: 12px;
}

.masonry-item.portrait {
  aspect-ratio: 2 / 3;
}

.masonry-item.landscape {
  aspect-ratio: 3 / 2;
}

@media (max-width: 1200px) {
  .masonry-item {
    width: calc(33.333% - 3.33px);
  }
}

@media (max-width: 768px) {
  .masonry-item {
    width: calc(50% - 2.5px);
  }
}

@media (max-width: 480px) {
  .masonry-item {
    width: 100%;
  }
}

.photo-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: var(--md-surface-variant);
}

.photo-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform var(--md-duration-long) var(--md-easing-emphasized);
}

.masonry-item:hover .photo-image img {
  transform: scale(1.05);
}

.photo-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--md-duration-medium) var(--md-easing-standard);
  pointer-events: none;
  z-index: 1;
}

.masonry-item:hover .photo-overlay {
  opacity: 1;
}

.view-icon {
  font-size: 3rem;
  color: white;
}

.no-image {
  width: 100%;
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--md-surface-variant);
  color: var(--md-on-surface-variant);
}

.photo-info {
  padding: var(--md-spacing-4);
}

.photo-id {
  font-size: 0.75rem;
  color: var(--md-on-surface-variant);
  font-family: "Roboto Mono", "Courier New", monospace;
  margin-bottom: var(--md-spacing-2);
  font-weight: 500;
}

.photo-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--md-spacing-2);
  margin-bottom: var(--md-spacing-3);
}

.tag {
  background: var(--md-secondary-container);
  color: var(--md-secondary);
  padding: var(--md-spacing-1) var(--md-spacing-3);
  border-radius: var(--md-shape-sm);
  font-size: 0.75rem;
  font-weight: 500;
}

.photo-description {
  color: var(--md-on-surface-variant);
  font-size: 0.875rem;
  margin-bottom: var(--md-spacing-3);
  line-height: 1.5;
}

.photo-actions {
  display: flex;
  gap: var(--md-spacing-2);
  margin-top: var(--md-spacing-3);
}

/* ===== EMPTY STATE ===== */
.empty-state {
  text-align: center;
  padding: var(--md-spacing-12) var(--md-spacing-4);
}

.empty-state .empty-icon {
  margin: 0 auto var(--md-spacing-6);
  color: var(--md-outline);
}

.empty-state h2 {
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--md-on-surface);
  margin-bottom: var(--md-spacing-3);
}

.empty-state p {
  color: var(--md-on-surface-variant);
  font-size: 1rem;
  margin-bottom: var(--md-spacing-6);
}

/* Override large icon size for buttons in empty-state */
.empty-state a .material-symbols-outlined {
  font-size: 24px !important;
  vertical-align: middle;
  margin: 0 !important;
}

/* ===== MODAL BASE ===== */
.modal {
  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: 1000;
}

.modal-content {
  background: var(--md-surface);
  border-radius: var(--md-shape-xl);
  padding: var(--md-spacing-6);
  box-shadow: var(--md-elevation-3);
  max-width: 600px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--md-spacing-3);
  margin-top: var(--md-spacing-6);
}

/* ===== LIGHTBOX ===== */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.9);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--md-spacing-6);
}

.lightbox.active {
  display: flex;
  animation: fadeIn var(--md-duration-medium) var(--md-easing-emphasized);
}

.lightbox-content {
  max-width: 1200px;
  width: 100%;
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--md-spacing-6);
  position: relative;
}

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

.lightbox-close {
  position: absolute;
  top: -50px;
  right: 0;
  background: transparent;
  border: none;
  color: #ffffff;
  font-size: 2.5rem;
  cursor: pointer;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--md-duration-short) var(--md-easing-standard);
}

.lightbox-close:hover {
  color: var(--md-primary);
  transform: scale(1.1);
}

.lightbox-photo-id {
  position: absolute;
  top: -30px;
  left: 0;
  background: transparent;
  color: #ffffff;
  font-size: 0.875rem;
  font-weight: 400;
  font-family: inherit;
  grid-column: 1;
  display: flex;
  align-items: center;
  gap: var(--md-spacing-2);
}

.copy-id-btn {
  background: transparent;
  border: none;
  color: #ffffff;
  cursor: pointer;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--md-duration-short) var(--md-easing-standard);
}

.copy-id-btn .material-symbols-outlined {
  font-size: 18px;
}

.copy-id-btn:hover {
  color: var(--md-primary);
  transform: scale(1.1);
}

.lightbox-content {
  max-width: 1200px;
  width: 100%;
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--md-spacing-6);
  position: relative;
}

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

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

.lightbox-image-container img {
  max-width: 100%;
  max-height: 80vh;
  object-fit: contain;
  border-radius: var(--md-shape-lg);
}

.lightbox-info {
  background: var(--md-surface);
  border-radius: var(--md-shape-lg);
  padding: var(--md-spacing-6);
  overflow-y: auto;
  box-shadow: var(--md-elevation-4);
  display: flex;
  flex-direction: column;
}

.lightbox-info h2 {
  font-family: "Roboto Mono", "Courier New", monospace;
  color: var(--md-primary);
  margin-bottom: var(--md-spacing-4);
  font-weight: 500;
  font-size: 1rem;
}

.version-switcher {
  display: flex;
  flex-direction: column;
  gap: var(--md-spacing-2);
  margin-bottom: var(--md-spacing-4);
}

.version-btn {
  padding: var(--md-spacing-3);
  background: var(--md-surface-variant);
  border: 1px solid var(--md-outline);
  border-radius: var(--md-shape-sm);
  color: var(--md-on-surface);
  cursor: pointer;
  transition: all var(--md-duration-short) var(--md-easing-standard);
  font-weight: 500;
  font-size: 0.875rem;
}

.version-btn:hover {
  background: var(--md-surface-container-high);
  border-color: var(--md-primary);
}

.version-btn.active {
  background: var(--md-primary);
  color: var(--md-on-primary);
  border-color: var(--md-primary);
}

.lightbox-edit-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--md-spacing-2);
  padding: var(--md-spacing-3);
  background: #ff7961;
  color: #ffffff;
  border: 1px solid #ff5252;
  border-radius: var(--md-shape-sm);
  text-decoration: none;
  cursor: pointer;
  transition: all var(--md-duration-short) var(--md-easing-standard);
  font-weight: 500;
  font-size: 0.875rem;
  margin-top: auto;
  width: 100%;
  line-height: 1;
}

.lightbox-edit-btn:hover {
  background: #ff5252;
  border-color: #ef5350;
  box-shadow: var(--md-elevation-2);
}

.lightbox-edit-btn .material-symbols-outlined {
  font-size: 18px;
}

/* ===== FORMS ===== */
.form-container {
  max-width: 800px;
  margin: 0 auto;
}

.form-container h1 {
  font-size: 2rem;
  font-weight: 400;
  margin-bottom: var(--md-spacing-6);
  color: var(--md-on-background);
}

.photo-id-display {
  font-family: "Roboto Mono", "Courier New", monospace;
  color: var(--md-on-surface-variant);
  margin-bottom: var(--md-spacing-8);
  font-size: 0.875rem;
}

.photo-form {
  background: var(--md-surface);
  border-radius: var(--md-shape-lg);
  padding: var(--md-spacing-6);
  border: 1px solid var(--md-outline-variant);
  box-shadow: var(--md-elevation-1);
}

.form-section {
  margin-bottom: var(--md-spacing-8);
}

.form-section h2 {
  font-size: 1.25rem;
  font-weight: 500;
  margin-bottom: var(--md-spacing-3);
  color: var(--md-on-surface);
}

.form-hint {
  color: var(--md-on-surface-variant);
  font-size: 0.875rem;
  margin-bottom: var(--md-spacing-4);
}

.form-group {
  margin-bottom: var(--md-spacing-5);
}

.form-group label {
  display: flex;
  align-items: center;
  gap: var(--md-spacing-2);
  font-weight: 500;
  margin-bottom: var(--md-spacing-2);
  color: var(--md-on-surface);
  font-size: 0.875rem;
}

.label-icon {
  font-size: 1.125rem;
}

.text-input,
.textarea-input,
.file-input {
  width: 100%;
  padding: var(--md-spacing-4);
  background: var(--md-surface);
  border: 1px solid var(--md-outline);
  border-radius: var(--md-shape-sm);
  color: var(--md-on-surface);
  font-size: 1rem;
  font-family: inherit;
  transition: all var(--md-duration-short) var(--md-easing-standard);
}

.text-input:focus,
.textarea-input:focus,
.file-input:focus {
  outline: none;
  border-color: var(--md-primary);
  box-shadow: 0 0 0 2px var(--md-primary-container);
}

.textarea-input {
  resize: vertical;
  min-height: 100px;
}

.file-input {
  cursor: pointer;
}

.file-preview {
  margin-top: var(--md-spacing-3);
  padding: var(--md-spacing-3);
  background: var(--md-surface-variant);
  border-radius: var(--md-shape-sm);
  display: none;
}

.file-preview:has(img) {
  display: block;
}

.file-preview img {
  max-width: 200px;
  max-height: 200px;
  border-radius: var(--md-shape-sm);
  margin-bottom: var(--md-spacing-2);
}

.file-preview p {
  color: var(--md-on-surface-variant);
  font-size: 0.875rem;
}

.form-group small {
  display: block;
  color: var(--md-on-surface-variant);
  font-size: 0.75rem;
  margin-top: var(--md-spacing-2);
}

/* ===== POPULAR TAGS ===== */
.popular-tags {
  margin-top: var(--md-spacing-4);
  padding-top: var(--md-spacing-3);
  border-top: 1px solid var(--md-outline-variant);
}

.popular-tags-label {
  display: block;
  color: var(--md-on-surface-variant);
  font-size: 0.75rem;
  margin-bottom: var(--md-spacing-2);
  font-weight: 500;
}

.popular-tags-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--md-spacing-2);
}

.popular-tag-chip {
  background: var(--md-surface-variant);
  color: var(--md-on-surface);
  border: 1px solid var(--md-outline);
  padding: var(--md-spacing-1) var(--md-spacing-3);
  border-radius: var(--md-shape-sm);
  font-size: 0.75rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--md-duration-short) var(--md-easing-standard);
  font-family: inherit;
}

.popular-tag-chip:hover {
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  border-color: var(--md-primary);
  box-shadow: var(--md-elevation-1);
}

.popular-tag-chip:active {
  transform: scale(0.95);
}

.current-files {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--md-spacing-4);
  margin-bottom: var(--md-spacing-4);
}

@media (max-width: 768px) {
  .current-files {
    gap: var(--md-spacing-2);
  }
}

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

.current-file {
  text-align: center;
  position: relative;
}

.empty-photo-slot {
  border: 3px dashed var(--md-outline);
  border-radius: var(--md-shape-md);
  background: var(--md-surface-variant);
  min-height: 200px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--md-duration-medium) var(--md-easing-standard);
  padding: var(--md-spacing-4);
  position: relative;
}

.empty-photo-slot:hover,
.empty-photo-slot.drag-over {
  border-color: var(--md-primary);
  background: var(--md-primary-container);
  transform: scale(1.02);
}

.empty-photo-slot .upload-icon {
  font-size: 48px;
  color: var(--md-on-surface-variant);
  margin-bottom: var(--md-spacing-2);
}

.empty-photo-slot p {
  color: var(--md-on-surface);
  font-weight: 500;
  margin-bottom: var(--md-spacing-1);
}

.empty-photo-slot small {
  color: var(--md-on-surface-variant);
  font-size: 0.75rem;
}

.hidden-file-input {
  display: none;
}

.delete-version-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  background: var(--md-error);
  color: var(--md-on-error);
  border: none;
  border-radius: var(--md-shape-sm);
  padding: var(--md-spacing-2);
  cursor: pointer;
  z-index: 10;
  box-shadow: var(--md-elevation-2);
  transition: all var(--md-duration-short) var(--md-easing-standard);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
}

.delete-version-btn:hover {
  background: #a31515;
  box-shadow: var(--md-elevation-3);
  transform: scale(1.05);
}

.delete-version-btn:active {
  transform: scale(0.95);
}

.delete-version-btn .material-symbols-outlined {
  font-size: 20px;
}

.current-file img {
  width: 100%;
  height: 200px;
  object-fit: contain;
  border-radius: var(--md-shape-md);
  border: 2px solid var(--md-outline);
  background: var(--md-surface-variant);
  transition: opacity var(--md-duration-short) var(--md-easing-standard);
}

.photo-wrapper {
  position: relative;
  cursor: pointer;
}

.current-file.drag-over .photo-wrapper img {
  opacity: 0.3;
}

.drop-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: calc(100% - 200px);
  background: var(--md-primary-container);
  border: 3px dashed var(--md-primary);
  border-radius: var(--md-shape-md);
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  z-index: 5;
  gap: var(--md-spacing-2);
}

.current-file.drag-over .drop-overlay {
  display: flex;
}

.drop-overlay-text {
  color: var(--md-on-primary-container);
  font-weight: 600;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--md-spacing-1);
}

.drop-overlay-text .material-symbols-outlined {
  font-size: 36px;
}

.drop-overlay-text p {
  margin: 0;
  font-size: 0.875rem;
}

.current-file p {
  margin-top: var(--md-spacing-2);
  color: var(--md-on-surface-variant);
  font-size: 0.875rem;
}

.form-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--md-spacing-4);
  margin-top: var(--md-spacing-8);
  padding-top: var(--md-spacing-6);
  border-top: 1px solid var(--md-outline-variant);
}

.action-group {
  display: flex;
  gap: var(--md-spacing-3);
}

/* ===== EMPTY STATE ===== */
.empty-state {
  text-align: center;
  padding: var(--md-spacing-12) var(--md-spacing-4);
}

.empty-icon {
  font-size: 5rem;
  margin-bottom: var(--md-spacing-6);
  opacity: 0.3;
}

.empty-state h2 {
  font-size: 1.5rem;
  font-weight: 400;
  margin-bottom: var(--md-spacing-3);
  color: var(--md-on-surface-variant);
}

.empty-state p {
  color: var(--md-on-surface-variant);
  margin-bottom: var(--md-spacing-8);
}

/* ===== FOOTER ===== */
.footer {
  background: var(--md-surface-variant);
  border-top: 1px solid var(--md-outline);
  padding: var(--md-spacing-6);
  text-align: center;
  color: var(--md-on-surface-variant);
  margin-top: var(--md-spacing-12);
  font-size: 0.875rem;
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar {
  width: 12px;
}

::-webkit-scrollbar-track {
  background: var(--md-surface-variant);
}

::-webkit-scrollbar-thumb {
  background: var(--md-outline);
  border-radius: var(--md-shape-sm);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--md-on-surface-variant);
}

/* ===== BULK UPLOAD ===== */
.bulk-upload-zone {
  border: 3px dashed var(--md-outline);
  border-radius: var(--md-shape-lg);
  padding: var(--md-spacing-12) var(--md-spacing-6);
  text-align: center;
  background: var(--md-surface-variant);
  transition: all var(--md-duration-medium) var(--md-easing-standard);
  cursor: pointer;
  margin-bottom: var(--md-spacing-6);
}

.bulk-upload-zone:hover {
  border-color: var(--md-primary);
  background: var(--md-primary-container);
}

.bulk-upload-zone.drag-over {
  border-color: var(--md-primary);
  background: var(--md-primary-container);
  transform: scale(1.02);
}

.upload-icon {
  font-size: 4rem;
  color: var(--md-primary);
  margin-bottom: var(--md-spacing-4);
}

.bulk-upload-zone h2 {
  font-size: 1.5rem;
  font-weight: 500;
  margin-bottom: var(--md-spacing-2);
  color: var(--md-on-surface);
}

.bulk-upload-zone p {
  color: var(--md-on-surface-variant);
  margin-bottom: var(--md-spacing-4);
}

.file-list {
  margin-top: var(--md-spacing-6);
}

.file-list h3 {
  font-size: 1.25rem;
  font-weight: 500;
  margin-bottom: var(--md-spacing-4);
  color: var(--md-on-surface);
}

#fileListContent {
  background: var(--md-surface);
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--md-shape-md);
  padding: var(--md-spacing-4);
  max-height: 400px;
  overflow-y: auto;
  margin-bottom: var(--md-spacing-6);
}

.file-group {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--md-spacing-3);
  border-bottom: 1px solid var(--md-outline-variant);
  transition: background var(--md-duration-short);
}

.file-group:last-child {
  border-bottom: none;
}

.file-group:hover {
  background: var(--md-surface-variant);
}

.file-group-name {
  display: flex;
  align-items: center;
  gap: var(--md-spacing-2);
  font-weight: 500;
  color: var(--md-on-surface);
}

.file-group-versions {
  display: flex;
  gap: var(--md-spacing-2);
}

.version-badge {
  padding: var(--md-spacing-1) var(--md-spacing-3);
  border-radius: var(--md-shape-sm);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.version-raw {
  background: #e3f2fd;
  color: #1565c0;
}

.version-bw {
  background: #f5f5f5;
  color: #424242;
}

.version-color {
  background: #fff3e0;
  color: #e65100;
}

.bulk-upload-info {
  margin-top: var(--md-spacing-8);
  padding: var(--md-spacing-6);
  background: var(--md-surface-variant);
  border-radius: var(--md-shape-lg);
  border-left: 4px solid var(--md-primary);
}

.bulk-upload-info h3 {
  display: flex;
  align-items: center;
  gap: var(--md-spacing-2);
  font-size: 1.125rem;
  font-weight: 500;
  margin-bottom: var(--md-spacing-4);
  color: var(--md-on-surface);
}

.bulk-upload-info ul {
  list-style: none;
  padding: 0;
}

.bulk-upload-info ul li {
  padding: var(--md-spacing-2) 0;
  color: var(--md-on-surface-variant);
  line-height: 1.6;
}

.bulk-upload-info ul ul {
  margin-left: var(--md-spacing-6);
  margin-top: var(--md-spacing-2);
}

.bulk-upload-info code {
  background: var(--md-surface);
  padding: 2px 6px;
  border-radius: var(--md-shape-sm);
  font-family: "Roboto Mono", monospace;
  font-size: 0.875rem;
  color: var(--md-primary);
}

/* ===== DATABASE EDITOR ===== */
.table-actions {
  margin-bottom: var(--md-spacing-4);
  display: flex;
  justify-content: flex-end;
}

.table-container {
  overflow-x: auto;
  background: var(--md-surface);
  border-radius: var(--md-shape-lg);
  border: 1px solid var(--md-outline-variant);
  box-shadow: var(--md-elevation-1);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.data-table thead {
  background: var(--md-surface-variant);
  border-bottom: 2px solid var(--md-outline);
}

.data-table th {
  padding: var(--md-spacing-4);
  text-align: left;
  font-weight: 600;
  color: var(--md-on-surface);
  white-space: nowrap;
}

.data-table th.text-center {
  text-align: center;
}

.data-table tbody tr {
  border-bottom: 1px solid var(--md-outline-variant);
  transition: background var(--md-duration-short);
}

.data-table tbody tr:hover {
  background: var(--md-surface-variant);
}

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

.data-table td {
  padding: var(--md-spacing-3) var(--md-spacing-4);
  color: var(--md-on-surface);
}

.data-table td.text-center {
  text-align: center;
}

.photo-id-cell {
  font-family: "Roboto Mono", monospace;
  font-size: 0.8rem;
  color: var(--md-on-surface-variant);
}

.check-icon {
  color: var(--md-success);
  font-size: 20px;
}

.cross-icon {
  color: var(--md-on-surface-variant);
  opacity: 0.3;
  font-size: 20px;
}

.action-buttons {
  display: flex;
  gap: var(--md-spacing-2);
  justify-content: center;
}

.btn-icon {
  background: transparent;
  border: none;
  cursor: pointer;
  padding: var(--md-spacing-2);
  border-radius: var(--md-shape-sm);
  transition: all var(--md-duration-short);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-edit-icon {
  color: var(--md-primary);
}

.btn-edit-icon:hover {
  background: var(--md-primary-container);
}

.btn-delete-icon {
  color: var(--md-error);
}

.btn-delete-icon:hover {
  background: #ffebee;
}

.empty-table {
  text-align: center;
  padding: var(--md-spacing-8) !important;
  color: var(--md-on-surface-variant);
  font-style: italic;
}

/* Checkbox styling */
input[type="checkbox"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: var(--md-primary);
}

@media (max-width: 768px) {
  .data-table {
    font-size: 0.75rem;
  }

  .data-table th,
  .data-table td {
    padding: var(--md-spacing-2);
  }

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

/* ===== PHOTO PREVIEW TOOLTIP ===== */
.photo-preview-tooltip {
  position: fixed;
  z-index: 9999;
  background: var(--md-surface);
  border-radius: var(--md-shape-lg);
  padding: var(--md-spacing-4);
  box-shadow: var(--md-elevation-5);
  border: 1px solid var(--md-outline);
  pointer-events: none;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity var(--md-duration-medium) var(--md-easing-emphasized),
    transform var(--md-duration-medium) var(--md-easing-emphasized);
  max-width: 400px;
}

.photo-preview-tooltip.visible {
  opacity: 1;
  transform: translateY(0);
}

.tooltip-header {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--md-on-surface-variant);
  margin-bottom: var(--md-spacing-3);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.tooltip-thumbnails {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  gap: var(--md-spacing-3);
}

.tooltip-thumbnail-item {
  display: flex;
  flex-direction: column;
  gap: var(--md-spacing-2);
}

.tooltip-thumbnail {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: var(--md-shape-sm);
  background: var(--md-surface-variant);
  border: 2px solid var(--md-outline-variant);
  transition: transform var(--md-duration-short) var(--md-easing-standard);
}

.tooltip-thumbnail:hover {
  transform: scale(1.05);
  border-color: var(--md-primary);
}

.tooltip-label {
  text-align: center;
  font-size: 0.7rem;
  font-weight: 600;
  padding: var(--md-spacing-1) var(--md-spacing-2);
  border-radius: var(--md-shape-sm);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.tooltip-label.raw {
  background: #e3f2fd;
  color: #1565c0;
}

.tooltip-label.bw {
  background: #f5f5f5;
  color: #424242;
}

.tooltip-label.color {
  background: #fff3e0;
  color: #e65100;
}

.tooltip-no-images {
  color: var(--md-on-surface-variant);
  font-size: 0.875rem;
  font-style: italic;
  text-align: center;
  padding: var(--md-spacing-4);
}

/* ===== UPLOAD ZONE (Add Photo) ===== */
.upload-zone {
  border: 3px dashed var(--md-outline);
  border-radius: var(--md-shape-lg);
  padding: var(--md-spacing-8) var(--md-spacing-4);
  text-align: center;
  background: var(--md-surface-variant);
  transition: all var(--md-duration-medium) var(--md-easing-standard);
  cursor: pointer;
  margin-bottom: var(--md-spacing-6);
}

.upload-zone:hover {
  border-color: var(--md-primary);
  background: var(--md-primary-container);
}

.upload-zone.drag-over {
  border-color: var(--md-primary);
  background: var(--md-primary-container);
  transform: scale(1.02);
}

.upload-zone h2 {
  font-size: 1.25rem;
  font-weight: 500;
  margin-bottom: var(--md-spacing-2);
  color: var(--md-on-surface);
}

.upload-zone p {
  color: var(--md-on-surface-variant);
  margin-bottom: 0;
}

/* Selected Files List */
.selected-files-list {
  list-style: none;
  padding: 0;
  margin: 0;
  background: var(--md-surface);
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--md-shape-md);
  overflow: hidden;
}

.selected-file-item {
  display: flex;
  align-items: center;
  padding: var(--md-spacing-3);
  border-bottom: 1px solid var(--md-outline-variant);
  gap: var(--md-spacing-3);
}

.selected-file-item:last-child {
  border-bottom: none;
}

.file-name {
  flex-grow: 1;
  font-weight: 500;
  color: var(--md-on-surface);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.file-size {
  color: var(--md-on-surface-variant);
  font-size: 0.875rem;
}

.remove-file-btn {
  background: none;
  border: none;
  color: var(--md-error);
  cursor: pointer;
  padding: 4px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.2s;
}

.remove-file-btn:hover {
  background-color: var(--md-error-container);
}

.validation-message {
  margin-top: var(--md-spacing-4);
}

.validation-success {
  color: var(--md-primary);
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
}

.validation-error {
  color: var(--md-error);
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
}

/* ===== PEOPLE PAGE ===== */

.page-header {
  margin-bottom: var(--md-spacing-6);
}

.page-header h1 {
  display: flex;
  align-items: center;
  gap: var(--md-spacing-3);
  color: var(--md-on-surface);
}

.people-stats {
  margin-bottom: var(--md-spacing-4);
  padding: var(--md-spacing-3);
  background: var(--md-surface-container);
  border-radius: var(--md-shape-md);
  border-left: 4px solid var(--md-primary);
}

.people-stats p {
  margin: 0;
  color: var(--md-on-surface-variant);
}

.people-stats strong {
  color: var(--md-primary);
  font-size: 1.125rem;
}

.people-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--md-spacing-4);
  margin-top: var(--md-spacing-4);
}

.person-card {
  background: var(--md-surface);
  border: 1px solid var(--md-outline);
  border-radius: var(--md-shape-lg);
  padding: var(--md-spacing-4);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--md-spacing-3);
  transition: all var(--md-duration-short) var(--md-easing-standard);
}

.person-card:hover {
  background: var(--md-surface-container);
  box-shadow: var(--md-elevation-2);
  border-color: var(--md-primary);
}

.person-icon {
  width: 56px;
  height: 56px;
  background: var(--md-primary-container);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.person-icon .material-symbols-outlined {
  color: var(--md-on-primary-container);
  font-size: 32px;
}

.person-info {
  flex-grow: 1;
  min-width: 0;
}

.person-info h3 {
  margin: 0 0 var(--md-spacing-1) 0;
  font-size: 1.125rem;
  color: var(--md-on-surface);
  word-wrap: break-word;
  hyphens: auto;
}

.person-photo-count {
  margin: 0 0 var(--md-spacing-3) 0;
  font-size: 0.875rem;
  color: var(--md-on-surface-variant);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--md-spacing-1);
}

.person-photo-count .material-symbols-outlined {
  font-size: 16px;
}

.person-actions {
  width: 100%;
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: var(--md-spacing-2);
}

.person-actions .btn-small {
  width: 100%;
  justify-content: center;
}

/* Delete button */
.person-actions .btn-delete {
  background: #ffebee;
  color: var(--md-error);
  border: 1px solid var(--md-error);
}

.person-actions .btn-delete:hover {
  background: var(--md-error);
  color: white;
  border-color: var(--md-error);
}

.btn-small {
  display: inline-flex;
  align-items: center;
  gap: var(--md-spacing-1);
  padding: var(--md-spacing-2) var(--md-spacing-3);
  background: var(--md-primary);
  color: var(--md-on-primary);
  border: none;
  border-radius: var(--md-shape-sm);
  font-size: 0.875rem;
  text-decoration: none;
  transition: background-color var(--md-duration-short);
}

.btn-small:hover {
  background: #1565c0;
}

.btn-small .material-symbols-outlined {
  font-size: 18px;
}

.empty-state {
  text-align: center;
  padding: var(--md-spacing-10) var(--md-spacing-4);
  color: var(--md-on-surface-variant);
}

.empty-state .material-symbols-outlined {
  font-size: 80px;
  opacity: 0.3;
  margin-bottom: var(--md-spacing-3);
  display: block;
}

.empty-state p {
  margin: var(--md-spacing-2) 0;
  font-size: 1.125rem;
}

.empty-state-hint {
  font-size: 0.875rem;
  opacity: 0.7;
}

/* Responsive */
@media (max-width: 768px) {
  .people-grid {
    grid-template-columns: 1fr;
  }
}

/* ===== PEOPLE PICKER MODAL ===== */

/* People Input Wrapper */
.people-input-wrapper {
  display: flex;
  gap: var(--md-spacing-2);
  align-items: center;
}

.people-text-input {
  flex: 1;
}

.btn-add-people {
  display: inline-flex;
  align-items: center;
  gap: var(--md-spacing-1);
  padding: var(--md-spacing-4) var(--md-spacing-3);
  background: var(--md-primary);
  color: var(--md-on-primary);
  border: none;
  border-radius: var(--md-shape-sm);
  font-size: 0.875rem;
  cursor: pointer;
  white-space: nowrap;
  transition: background-color var(--md-duration-short);
}

.btn-add-people:hover {
  background: #1565c0;
}

.btn-add-people .material-symbols-outlined {
  font-size: 18px;
}

/* Modal Overlay */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  padding: var(--md-spacing-4);
}

.modal-content {
  background: var(--md-surface);
  border-radius: var(--md-shape-lg);
  max-width: 600px;
  width: 100%;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--md-elevation-5);
}

.modal-header {
  padding: var(--md-spacing-4);
  border-bottom: 1px solid var(--md-outline);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h2 {
  margin: 0;
  display: flex;
  align-items: center;
  gap: var(--md-spacing-2);
  font-size: 1.5rem;
  color: var(--md-on-surface);
}

.modal-close {
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--md-spacing-1);
  border-radius: 50%;
  transition: background-color var(--md-duration-short);
  color: var(--md-on-surface-variant);
}

.modal-close:hover {
  background: var(--md-surface-container);
}

.modal-close .material-symbols-outlined {
  font-size: 24px;
}

.modal-body {
  padding: var(--md-spacing-4);
  overflow-y: auto;
  flex: 1;
}

.modal-footer {
  padding: var(--md-spacing-4);
  border-top: 1px solid var(--md-outline);
  display: flex;
  gap: var(--md-spacing-2);
  justify-content: flex-end;
}

/* People List in Modal */
.people-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: var(--md-spacing-2);
}

.person-chip {
  display: flex;
  align-items: center;
  gap: var(--md-spacing-2);
  padding: var(--md-spacing-2) var(--md-spacing-3);
  background: var(--md-surface-container);
  border: 2px solid var(--md-outline);
  border-radius: var(--md-shape-md);
  cursor: pointer;
  transition: all var(--md-duration-short);
  user-select: none;
}

.person-chip:hover {
  background: var(--md-surface-container-high);
  border-color: var(--md-primary);
}

.person-chip.selected {
  background: var(--md-primary-container);
  border-color: var(--md-primary);
  color: var(--md-on-primary-container);
}

.person-chip .material-symbols-outlined {
  font-size: 20px;
  color: var(--md-on-surface-variant);
}

.person-chip.selected .material-symbols-outlined {
  color: var(--md-primary);
}

.person-name {
  font-size: 0.875rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
}

/* Responsive */
@media (max-width: 768px) {
  .people-input-wrapper {
    flex-direction: column;
    align-items: stretch;
  }

  .btn-add-people {
    justify-content: center;
  }

  .people-list {
    grid-template-columns: 1fr;
  }
}

/* ===== VERSION ASSIGNMENT MODAL ===== */
.modal-wide {
  max-width: 800px;
  width: 90%;
}

.file-assignment-list {
  display: flex;
  flex-direction: column;
  gap: var(--md-spacing-4);
  max-height: 60vh;
  overflow-y: auto;
  padding: var(--md-spacing-2);
}

.file-assignment-row {
  display: flex;
  align-items: center;
  gap: var(--md-spacing-4);
  padding: var(--md-spacing-3);
  background: var(--md-surface-container);
  border-radius: var(--md-shape-md);
  border: 1px solid var(--md-outline-variant);
}

.file-thumbnail {
  width: 80px;
  height: 80px;
  object-fit: cover;
  border-radius: var(--md-shape-sm);
  background: var(--md-surface-variant);
}

.file-info {
  flex: 1;
  min-width: 0;
}

.file-info-name {
  font-weight: 500;
  color: var(--md-on-surface);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  margin-bottom: var(--md-spacing-1);
}

.file-info-size {
  font-size: 0.75rem;
  color: var(--md-on-surface-variant);
}

.version-selectors {
  display: flex;
  gap: var(--md-spacing-3);
}

.version-option {
  display: flex;
  align-items: center;
  gap: var(--md-spacing-1);
  cursor: pointer;
}

.version-option input[type="radio"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
}

.version-option label {
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--md-on-surface);
  user-select: none;
}

.hint {
  color: var(--md-on-surface-variant);
  font-size: 0.875rem;
  margin-bottom: var(--md-spacing-4);
}

.hint strong {
  color: var(--md-on-surface);
}

/* RAW Requirement Warning */
.raw-requirement-warning {
  display: flex;
  align-items: center;
  gap: var(--md-spacing-2);
  padding: var(--md-spacing-3) var(--md-spacing-4);
  background: #fff3e0;
  border: 1px solid #ff9800;
  border-radius: var(--md-shape-md);
  color: #e65100;
  font-size: 0.875rem;
  margin-top: var(--md-spacing-4);
  margin-bottom: var(--md-spacing-2);
  animation: fadeIn 0.3s ease-in-out;
}

.raw-requirement-warning .material-symbols-outlined {
  font-size: 20px;
  flex-shrink: 0;
}

.raw-requirement-warning strong {
  color: #e65100;
  font-weight: 600;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Modal Add Files Zone */
.modal-add-files-zone {
  border: 2px dashed var(--md-outline);
  border-radius: var(--md-shape-md);
  padding: var(--md-spacing-4);
  text-align: center;
  background: var(--md-surface-container);
  cursor: pointer;
  transition: all var(--md-duration-short) var(--md-easing-standard);
  margin-bottom: var(--md-spacing-4);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--md-spacing-2);
}

.modal-add-files-zone:hover {
  border-color: var(--md-primary);
  background: var(--md-primary-container);
}

.modal-add-files-zone.drag-over {
  border-color: var(--md-primary);
  background: var(--md-primary-container);
  transform: scale(1.02);
  border-width: 3px;
}

.modal-add-files-zone .material-symbols-outlined {
  font-size: 24px;
  color: var(--md-on-surface-variant);
}

.modal-add-files-zone:hover .material-symbols-outlined {
  color: var(--md-primary);
}

.modal-add-files-zone span:not(.material-symbols-outlined) {
  font-size: 0.875rem;
  color: var(--md-on-surface-variant);
  font-weight: 500;
}

.modal-add-files-zone:hover span:not(.material-symbols-outlined) {
  color: var(--md-on-primary-container);
}

/* ===== DUPLICATE HANDLING MODALS ===== */

/* Duplicate Detection Modal */
#duplicateModal .modal-content {
  max-width: 500px;
  text-align: center;
}

#duplicateModal h3 {
  color: var(--md-error);
  margin-bottom: var(--md-spacing-4);
}

#duplicateModal .hint {
  color: var(--md-on-surface-variant);
  font-size: 0.875rem;
  margin-top: var(--md-spacing-2);
}

#duplicatePhotoId {
  font-family: "Roboto Mono", monospace;
  color: var(--md-primary);
}

/* Photo Preview Modal */
.modal-wide {
  max-width: 900px !important;
  width: 95% !important;
}

.preview-images-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--md-spacing-4);
  margin-bottom: var(--md-spacing-6);
}

.preview-image-item {
  position: relative;
  border-radius: var(--md-shape-md);
  overflow: hidden;
  box-shadow: var(--md-elevation-2);
}

.preview-image-item img {
  width: 100%;
  height: auto;
  max-height: 400px;
  object-fit: contain;
  display: block;
  background: var(--md-surface-variant);
}

.preview-image-item .version-badge {
  position: absolute;
  top: var(--md-spacing-2);
  right: var(--md-spacing-2);
  padding: var(--md-spacing-1) var(--md-spacing-3);
  border-radius: var(--md-shape-sm);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.metadata-grid {
  display: grid;
  gap: var(--md-spacing-3);
  padding: var(--md-spacing-4);
  background: var(--md-surface-variant);
  border-radius: var(--md-shape-md);
  margin-bottom: var(--md-spacing-4);
}

.metadata-grid div {
  font-size: 0.875rem;
  line-height: 1.5;
}

.metadata-grid strong {
  color: var(--md-on-surface);
  margin-right: var(--md-spacing-2);
}

/* Rename Modal */
.rename-input-group {
  margin: var(--md-spacing-6) 0;
}

.rename-input-group label {
  display: block;
  font-weight: 500;
  margin-bottom: var(--md-spacing-2);
  color: var(--md-on-surface);
}

.rename-input-group input {
  width: 100%;
  padding: var(--md-spacing-4);
  border: 2px solid var(--md-outline);
  border-radius: var(--md-shape-sm);
  font-size: 1rem;
  font-family: "Roboto Mono", monospace;
  transition: all var(--md-duration-short) var(--md-easing-standard);
}

.rename-input-group input:focus {
  outline: none;
  border-color: var(--md-primary);
  box-shadow: 0 0 0 3px var(--md-primary-container);
}

.rename-input-group small {
  display: block;
  margin-top: var(--md-spacing-2);
  color: var(--md-on-surface-variant);
  font-size: 0.75rem;
}

/* Validation Messages */
.validation-message {
  min-height: 40px;
  margin: var(--md-spacing-4) 0;
}

.validation-error {
  padding: var(--md-spacing-3);
  background: #ffebee;
  color: var(--md-error);
  border-radius: var(--md-shape-sm);
  border-left: 4px solid var(--md-error);
  font-size: 0.875rem;
}

.validation-success {
  padding: var(--md-spacing-3);
  background: #e8f5e9;
  color: var(--md-success);
  border-radius: var(--md-shape-sm);
  border-left: 4px solid var(--md-success);
  font-size: 0.875rem;
}

/* Modal Actions Styling - specific for duplicate modals */
#duplicateModal .modal-actions,
#photoPreviewModal .modal-actions,
#renameModal .modal-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--md-spacing-3);
  justify-content: center;
}

#duplicateModal .modal-actions button,
#photoPreviewModal .modal-actions button,
#renameModal .modal-actions button {
  flex: 0 1 auto;
}

/* Disabled button state */
button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

button:disabled:hover {
  background: var(--md-primary) !important;
  box-shadow: var(--md-elevation-1) !important;
  transform: none !important;
}