:root {
  --color-bg: #000000;
  --color-bg-elevated: #15131a;
  --color-surface: #17151d;
  --color-surface-hover: #1e1b26;
  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-strong: rgba(255, 255, 255, 0.18);
  --color-text: #f3eee3;
  --color-text-muted: #a89fb3;
  --color-text-faint: #766e83;
  --color-accent: #dba847;
  --color-accent-strong: #eabf6b;
  --color-accent-contrast: #211705;
  --color-danger: #e2685a;
  --color-danger-strong: #ef8577;
  --color-danger-bg: rgba(226, 104, 90, 0.12);
  --color-danger-contrast: #2a0f0a;
  --color-success: #4caf7d;
  --color-success-strong: #6fd6a3;
  --color-success-contrast: #0d2016;
  --color-focus: #eabf6b;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 20px 50px rgba(0, 0, 0, 0.55);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --font-display: Georgia, "Iowan Old Style", "Palatino Linotype", Palatino, serif;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  font-size: 93.75%;
}

html, body {
  margin: 0;
  padding: 0;
}

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

a, button, input, textarea, select {
  font-family: inherit;
}

:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.page {
  max-width: 1240px;
  margin: 0 auto;
  padding: 1rem 1.5rem 4rem;
}

.app-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.75rem;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.app-title {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--color-accent-strong);
  margin: 0 0 0.3rem;
}

.app-subtitle {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.6rem 1.1rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: background-color 0.15s ease, border-color 0.15s ease, opacity 0.15s ease, color 0.15s ease;
  white-space: nowrap;
}

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

.btn-primary {
  background: var(--color-accent);
  color: var(--color-accent-contrast);
}

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

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

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

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

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

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

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

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

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

.btn-text {
  background: transparent;
  border: none;
  color: var(--color-text-muted);
  text-decoration: underline;
  padding: 0.2rem 0;
}

.btn-sm {
  padding: 0.35rem 0.7rem;
  font-size: 0.85rem;
}

.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.search-input {
  flex: 1 1 260px;
  min-width: 0;
  padding: 0.6rem 0.9rem;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  background: var(--color-bg-elevated);
  font-size: 0.95rem;
  color: var(--color-text);
}

.search-input::placeholder {
  color: var(--color-text-faint);
}

.toolbar-controls {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

/* States */
.state-message {
  text-align: center;
  padding: 4rem 1.5rem;
  color: var(--color-text-muted);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.state-message h2 {
  margin: 0 0 0.5rem;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: 1.35rem;
}

.state-message .btn {
  margin-top: 1rem;
}

.state-error {
  color: var(--color-danger-strong);
}

.spinner {
  width: 28px;
  height: 28px;
  margin: 0 auto 1rem;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.no-photo-label {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--color-text-faint);
  font-size: 0.85rem;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  white-space: nowrap;
  flex: 0 0 auto;
}

.status-available {
  background: rgba(76, 175, 125, 0.15);
  color: #6fd6a3;
}

.status-sold {
  background: var(--color-danger-bg);
  color: var(--color-danger-strong);
}

.status-unknown {
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-text-muted);
}

.status-other {
  background: rgba(219, 168, 71, 0.15);
  color: var(--color-accent-strong);
}

.status-private_collection {
  background: rgba(93, 148, 214, 0.15);
  color: #7fb3ea;
}

/* Data table */
.table-wrap {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow-x: auto;
  overflow-y: hidden;
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  white-space: nowrap;
  table-layout: fixed;
}

.data-table thead th {
  background: var(--color-bg-elevated);
  color: var(--color-text-muted);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  text-align: left;
  padding: 0.85rem 1.15rem;
  border-bottom: 1px solid var(--color-border-strong);
  white-space: nowrap;
}

.data-table th.sortable {
  cursor: pointer;
  user-select: none;
}

.data-table th.sortable:hover {
  color: var(--color-text);
}

.data-table th.sort-active {
  color: var(--color-accent-strong);
}

.sort-icon {
  display: inline-block;
  margin-left: 0.35rem;
  font-size: 0.85em;
  opacity: 0.7;
}

.data-table tbody tr {
  border-bottom: 1px solid var(--color-border);
  transition: background-color 0.1s ease;
}

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

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

.data-table td {
  padding: 0.65rem 1.15rem;
  color: var(--color-text);
  font-size: 0.9rem;
  vertical-align: middle;
  overflow: hidden;
  text-overflow: ellipsis;
}

.cell-description {
  white-space: normal;
}

.cell-description-text {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.35;
}

.cell-photo {
  width: 1%;
  padding: 0.5rem 1.15rem;
}

.col-checkbox,
.cell-checkbox {
  width: 1%;
  padding: 0.85rem 0.75rem 0.85rem 1.15rem;
}

.col-checkbox input[type="checkbox"],
.cell-checkbox input[type="checkbox"] {
  width: 1.05rem;
  height: 1.05rem;
  accent-color: var(--color-accent);
  cursor: pointer;
}

.cell-code {
  color: var(--color-accent);
  font-weight: 700;
}

.table-thumb {
  display: block;
  width: 96px;
  aspect-ratio: 16 / 9;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0;
  margin: 0;
  overflow: hidden;
  cursor: pointer;
}

.table-thumb img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.table-thumb .no-photo-label {
  font-size: 0.65rem;
}

@media (max-width: 640px) {
  .table-thumb {
    width: 72px;
  }
}

/* Pagination */
.pagination-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 1.5rem;
  padding: 0.85rem 1.25rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.pagination-bar-left {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.page-size-control {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.page-size-control select {
  padding: 0.35rem 0.6rem;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  background: var(--color-bg-elevated);
  color: var(--color-text);
  font-size: 0.85rem;
}

.pagination-info {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  white-space: nowrap;
}

.pagination-controls {
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.page-numbers {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.page-btn,
.page-number-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2rem;
  height: 2rem;
  padding: 0 0.5rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  background: transparent;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.page-btn:hover:not(:disabled),
.page-number-btn:hover:not(.active) {
  background: var(--color-surface-hover);
  color: var(--color-text);
}

.page-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.page-number-btn.active {
  background: var(--color-accent);
  color: var(--color-accent-contrast);
  cursor: default;
}

.page-ellipsis {
  color: var(--color-text-faint);
  padding: 0 0.3rem;
  font-size: 0.9rem;
}

/* Modals */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(4, 3, 6, 0.72);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  z-index: 100;
}

.modal-overlay[hidden] {
  display: none;
}

.modal {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  max-height: 90vh;
  overflow-x: hidden;
  overflow-y: auto;
  scroll-behavior: smooth;
  width: 100%;
  min-width: 0;
}

.modal-detail {
  max-width: 1040px;
}

.modal-form {
  max-width: 660px;
  padding: 2rem;
}

.modal-confirm {
  max-width: 440px;
  padding: 1.75rem;
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.6rem;
  line-height: 1;
  color: var(--color-text-muted);
  cursor: pointer;
  padding: 0.25rem;
  flex-shrink: 0;
}

.modal-close:hover {
  color: var(--color-text);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1.25rem;
  flex-wrap: wrap;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.modal-header-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
  flex-shrink: 0;
}

.modal-form .modal-header {
  margin: -2rem -2rem 1.5rem;
  padding: 1.1rem 2rem;
}

.modal-detail .modal-header {
  position: sticky;
  top: 0;
  z-index: 5;
  padding: 1.1rem 1.75rem;
  flex-wrap: nowrap;
  align-items: flex-start;
}

.modal-detail .modal-header .modal-close {
  flex-shrink: 0;
}

.modal-detail-body {
  display: grid;
  grid-template-columns: 1fr;
}

.modal-detail-image {
  background: var(--color-bg-elevated);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  aspect-ratio: 16 / 9;
  max-height: 70vh;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.modal-detail-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.modal-detail-info {
  padding: 1.75rem;
}

.detail-header-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  min-width: 0;
  flex: 1 1 auto;
}

.detail-number {
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.8rem;
  color: var(--color-accent);
  font-weight: 700;
  margin: 0;
}

.detail-description {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 1.25rem;
}

.detail-title-block {
  min-width: 0;
  flex: 1 1 auto;
}

.modal-header .detail-description {
  margin: 0;
}

.detail-fields {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.9rem 1.5rem;
  margin: 0 0 1.5rem;
}

.modal-header .detail-fields {
  grid-template-columns: max-content max-content;
  gap: 0.3rem 1.5rem;
  margin: 0.4rem 0 0;
}

.modal-header #detailSize {
  color: var(--color-accent);
  font-weight: 700;
}

.modal-header #detailYear {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: rgba(76, 175, 125, 0.15);
  color: #6fd6a3;
}

.detail-field dt {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-faint);
  margin-bottom: 0.15rem;
}

.detail-field dd {
  margin: 0;
  font-size: 0.95rem;
  color: var(--color-text);
}

.detail-notes h3 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-faint);
  margin: 0 0 0.4rem;
}

.detail-notes p {
  margin: 0 0 1.5rem;
  white-space: pre-wrap;
  color: var(--color-text);
}


/* Forms */
.modal-form h2 {
  font-family: var(--font-display);
  color: var(--color-accent-strong);
  margin: 0;
  font-size: 1.4rem;
}

.form-section {
  border: none;
  padding: 0;
  margin: 0 0 1.5rem;
}

.form-section legend {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-faint);
  font-weight: 600;
  padding: 0;
  margin-bottom: 0.75rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

@media (min-width: 520px) {
  .form-row {
    grid-template-columns: 1fr 1fr;
  }
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-faint);
  margin-bottom: 0.4rem;
}

.required {
  color: var(--color-danger-strong);
}

.form-group input[type="text"],
.form-group input[type="number"],
.form-group input[type="date"],
.form-group input[type="file"],
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  background: var(--color-bg-elevated);
  color: var(--color-text);
  font-size: 0.95rem;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-text-faint);
}

.status-select {
  font-weight: 700;
}

.status-select-available {
  color: #6fd6a3;
  border-color: rgba(76, 175, 125, 0.5);
}

.status-select-sold {
  color: var(--color-danger-strong);
  border-color: rgba(226, 104, 90, 0.5);
}

.status-select-unknown {
  color: var(--color-text-muted);
  border-color: var(--color-border-strong);
}

.status-select-other {
  color: var(--color-accent-strong);
  border-color: rgba(219, 168, 71, 0.5);
}

.status-select-private_collection {
  color: #7fb3ea;
  border-color: rgba(93, 148, 214, 0.5);
}

.form-group textarea {
  resize: vertical;
}

.form-group input.field-invalid,
.form-group textarea.field-invalid {
  border-color: var(--color-danger);
}

.field-error {
  color: var(--color-danger-strong);
  font-size: 0.82rem;
  margin: 0.35rem 0 0;
  min-height: 0;
}

.field-error:empty {
  display: none;
}

.form-error {
  background: var(--color-danger-bg);
  color: var(--color-danger-strong);
  border: 1px solid rgba(226, 104, 90, 0.35);
  border-radius: var(--radius-sm);
  padding: 0.65rem 0.85rem;
  font-size: 0.9rem;
  margin: 0 0 1rem;
}

.photo-upload-row {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.certificate-upload-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.certificate-filename {
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

.certificate-upload-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.photo-preview-box {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-strong);
  background: var(--color-bg-elevated);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: border-color 0.15s ease;
}

.photo-preview-box:hover {
  border-color: var(--color-accent);
}

.photo-preview-box img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.photo-preview-box .no-photo-label {
  font-size: 0.85rem;
  text-align: center;
  padding: 0 0.5rem;
}

.photo-upload-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.modal-confirm h2 {
  font-family: var(--font-display);
  color: var(--color-accent-strong);
  margin: 0 0 0.6rem;
  font-size: 1.25rem;
}

.modal-confirm p {
  margin: 0 0 1.5rem;
  color: var(--color-text-muted);
}

/* Mass photo upload */
.modal-mass-upload {
  max-width: 520px;
}

.modal-mass-upload .modal-header {
  padding: 1.1rem 1.5rem;
}

.mass-upload-body {
  padding: 1.5rem;
}

.mass-upload-status {
  margin: 0 0 0.85rem;
  font-weight: 600;
  color: var(--color-text);
}

.mass-upload-progress {
  height: 8px;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  overflow: hidden;
}

.mass-upload-bar {
  height: 100%;
  width: 0;
  background: var(--color-accent);
  transition: width 0.2s ease;
}

.mass-upload-detail {
  margin: 0.65rem 0 0;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.mass-upload-summary {
  margin: 1rem 0 0;
  font-size: 0.9rem;
  color: var(--color-text);
}

.mass-upload-errors {
  margin: 0.85rem 0 0;
  padding-left: 1.1rem;
  max-height: 180px;
  overflow-y: auto;
  font-size: 0.8rem;
  color: var(--color-danger-strong);
}

.mass-upload-errors li {
  margin-bottom: 0.25rem;
}

/* Toasts */
.toast-container {
  position: fixed;
  bottom: 1.25rem;
  right: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  z-index: 200;
  max-width: 90vw;
}

.toast {
  background: var(--color-surface);
  border: 1px solid var(--color-border-strong);
  color: var(--color-text);
  padding: 0.75rem 1.1rem;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
  font-size: 0.9rem;
  animation: toast-in 0.2s ease;
}

.toast-error {
  border-color: rgba(226, 104, 90, 0.5);
  color: var(--color-danger-strong);
}

@keyframes toast-in {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 640px) {
  .page {
    padding: 1.5rem 1rem 3rem;
  }

  .app-title {
    font-size: 1.6rem;
  }

  .modal-form {
    padding: 1.25rem;
  }

  .modal-form .modal-header {
    margin: -1.25rem -1.25rem 1.25rem;
    padding: 1rem 1.25rem;
  }
}