:root {
  --color-bg: #f8fafc;
  --color-surface: #ffffff;
  --color-border: #e2e8f0;
  --color-text: #1e293b;
  --color-text-muted: #64748b;
  --color-text-faint: #94a3b8;
  --color-header-bg: #1e293b;
  --color-header-text: #f1f5f9;
  --color-accent: #0d9488;
  --color-accent-hover: #0f766e;
  --color-success: #22c55e;
  --color-success-bg: #f0fdf4;
  --color-warning: #f59e0b;
  --color-warning-bg: #fffbeb;
  --color-error: #ef4444;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft JhengHei", "PingFang TC", "Noto Sans TC", sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
}

.header {
  background: var(--color-header-bg);
  padding: 1.5rem 2rem;
}
.header h1 {
  color: var(--color-header-text);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.body {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem;
}

/* --- Password gate --- */
.gate {
  max-width: 320px;
  margin: 4rem auto;
}
.gate-form {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 1.5rem;
}
.gate-form label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}
.gate-form input {
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 1rem;
}
.error-text {
  color: var(--color-error);
  font-size: 0.85rem;
}

/* --- Form fields --- */
.field-row {
  margin-bottom: 1.25rem;
}
.field-row label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-muted);
  margin-bottom: 0.4rem;
}
.field-row select,
.field-row input[type="file"] {
  width: 100%;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background: var(--color-surface);
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--color-text);
}
.upload-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}
@media (max-width: 700px) {
  .upload-row { grid-template-columns: 1fr; }
}

/* --- Workspace: photo grid + caption list --- */
.workspace {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}
@media (max-width: 900px) {
  .workspace { grid-template-columns: 1fr; }
}

.panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 1rem 1.25rem;
}
.panel-title {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  margin-bottom: 0.75rem;
}

.photo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
  gap: 0.5rem;
  max-height: 480px;
  overflow-y: auto;
}
.photo-grid figure {
  margin: 0;
}
.photo-grid img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 6px;
  border: 1px solid var(--color-border);
  display: block;
}
.photo-grid figcaption {
  font-size: 0.65rem;
  color: var(--color-text-faint);
  text-align: center;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  margin-top: 0.2rem;
}

.caption-list {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  max-height: 480px;
  overflow-y: auto;
}
.caption-item label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 0.35rem;
}
.caption-item select {
  width: 100%;
  min-height: 4.5rem;
  padding: 0.4rem;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 0.85rem;
  font-family: inherit;
}

.badge {
  display: inline-flex;
  align-items: center;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  white-space: nowrap;
}
.badge-pending {
  background: var(--color-warning-bg);
  color: var(--color-warning);
}
.badge-done {
  background: var(--color-success-bg);
  color: var(--color-success);
}
.badge-low {
  background: var(--color-warning-bg);
  color: var(--color-warning);
}
.badge-high {
  background: var(--color-success-bg);
  color: var(--color-success);
}

/* --- Detected captions panel(自動偵測 + 微調) --- */
.hint-text {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-bottom: 0.75rem;
  line-height: 1.5;
}
.detected-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-height: 300px;
  overflow-y: auto;
}
.detected-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 0.85rem;
}
.detected-item .label {
  flex: 1;
}
.detected-item .row-adjust {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  color: var(--color-text-muted);
}
.detected-item .row-adjust input {
  width: 3.5rem;
  padding: 0.25rem 0.4rem;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  font-family: inherit;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.5rem;
  border: none;
  border-radius: 6px;
  font-size: 0.95rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  text-decoration: none;
  transition: background-color 0.15s;
}
.btn-primary {
  background: var(--color-accent);
  color: #fff;
}
.btn-primary:hover:not(:disabled) {
  background: var(--color-accent-hover);
}
.btn:disabled {
  background: var(--color-border);
  color: var(--color-text-faint);
  cursor: not-allowed;
}

.action-row {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.status-text {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.result {
  margin-top: 1.5rem;
}