.gallery-page { padding-bottom: var(--space-2xl); }

.container-narrow { max-width: 720px; }

.gallery-page-header {
    display: flex; align-items: flex-end; justify-content: space-between;
    gap: var(--space-md); flex-wrap: wrap;
}
.gallery-new-btn { flex-shrink: 0; }

.gallery-toolbar {
    display: flex; align-items: center; gap: var(--space-md);
    margin-bottom: var(--space-xl); flex-wrap: wrap;
}
.gallery-filters { display: flex; gap: 4px; flex-wrap: wrap; }
.filter-btn {
    padding: 5px 14px; border-radius: var(--radius-full);
    font-size: 0.75rem; font-weight: var(--font-weight-medium);
    color: var(--color-text-muted); border: 1px solid transparent;
    transition: all var(--transition-fast);
}
.filter-btn:hover { color: var(--color-text); background: var(--color-surface); }
.filter-btn.active { color: var(--color-accent-text); background: var(--color-accent); }
.gallery-sort {
    display: flex; gap: 2px; margin-left: auto;
    padding: 3px; border-radius: var(--radius-full);
    background: var(--color-surface); border: 1px solid var(--color-border);
}
.sort-btn {
    display: inline-flex; align-items: center; gap: 5px;
    padding: 4px 12px; border-radius: var(--radius-full);
    font-size: 0.72rem; font-weight: var(--font-weight-medium);
    color: var(--color-text-muted); transition: all var(--transition-fast);
}
.sort-btn svg { width: 12px; height: 12px; }
.sort-btn:hover { color: var(--color-text); }
.sort-btn.active { color: var(--color-text); background: var(--color-surface-elevated); box-shadow: var(--shadow-sm); }

/* ── Empty state ── */
.gallery-empty {
    display: flex; flex-direction: column; align-items: center; gap: var(--space-md);
    padding: var(--space-4xl) 0; text-align: center; color: var(--color-text-muted);
}
.gallery-empty svg { width: 40px; height: 40px; opacity: 0.5; }
.gallery-empty p { font-size: 0.88rem; }
.gallery-empty-hint { font-size: 0.78rem; }

/* ── Grid (AstroBin-style cards) ── */
.gallery-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-md);
}
.gallery-item {
    display: block; border-radius: var(--radius-lg); overflow: hidden;
    background: var(--color-surface); border: 1px solid var(--color-border);
    color: inherit;
    transition: border-color var(--transition-fast), transform var(--transition-base);
}
.gallery-item:hover { border-color: var(--color-text-muted); transform: translateY(-2px); }

.gallery-thumb {
    position: relative; aspect-ratio: 4/3;
    background: var(--color-surface-elevated); overflow: hidden;
}
.gallery-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.gallery-thumb-fmt {
    position: absolute; bottom: 8px; right: 8px;
    background: rgba(10, 8, 20, 0.65); color: #fff; backdrop-filter: blur(4px);
    font-size: 0.6rem; letter-spacing: 0.06em;
}
.gallery-thumb-badge {
    position: absolute; top: 8px; left: 8px;
    background: rgba(10, 8, 20, 0.65); color: #fff; backdrop-filter: blur(4px);
}
.gallery-thumb-draft {
    position: absolute; top: 8px; right: 8px;
    background: rgba(10, 8, 20, 0.65); backdrop-filter: blur(4px);
}
.gallery-item.is-draft { opacity: 0.72; }
.badge-draft { background: var(--color-surface-elevated); color: var(--color-text-muted); }

.gallery-info { padding: var(--space-md); }
.gallery-info-title {
    font-size: 0.85rem; font-weight: var(--font-weight-semibold); margin-bottom: 8px;
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
    word-break: break-word; overflow-wrap: break-word;
}
.gallery-info-meta {
    display: flex; align-items: center; justify-content: space-between;
    font-size: 0.7rem; color: var(--color-text-muted);
}
.gallery-author { display: flex; align-items: center; gap: 6px; }
.gallery-author .avatar { width: 20px; height: 20px; }
.gallery-author .avatar svg { width: 10px; height: 10px; }

@media (max-width: 1024px) { .gallery-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 768px) {
    .gallery-grid { grid-template-columns: 1fr; }
    .gallery-toolbar { flex-direction: column; align-items: stretch; }
    .gallery-sort { margin-left: 0; align-self: flex-start; }
    .gallery-page-header { flex-direction: column; align-items: stretch; }
}

/* ── Detail page (Threads/X-style post + AstroBin-style data panel) ── */
.back-link {
    display: inline-flex; align-items: center; gap: 6px;
    font-size: 0.8rem; color: var(--color-text-muted);
    margin-bottom: var(--space-lg); transition: color var(--transition-fast);
}
.back-link:hover { color: var(--color-text); }
.back-link svg { width: 14px; height: 14px; }

.post-detail { padding-bottom: var(--space-2xl); }
.post-detail-meta {
    display: flex; align-items: center; gap: var(--space-sm); flex-wrap: wrap;
    margin-bottom: var(--space-lg);
}
.post-detail-avatar { width: 44px; height: 44px; }
.post-detail-meta-text { margin-right: auto; }
.post-detail-author { font-size: 0.85rem; font-weight: var(--font-weight-semibold); }
.post-detail-time { font-size: 0.72rem; color: var(--color-text-muted); }

.gallery-detail-image-btn {
    display: block; position: relative; width: 100%; padding: 0; border: none;
    border-radius: var(--radius-lg); overflow: hidden; cursor: zoom-in;
    margin-bottom: var(--space-lg); background: var(--color-surface-elevated);
}
.gallery-detail-image { width: 100%; max-height: 70vh; object-fit: contain; display: block; transition: filter 0.45s ease; }
/* 漸進式：縮圖階段模糊 + 略放大蓋住邊緣，展示圖到位後解除 */
.gallery-detail-image.is-thumb { filter: blur(14px); transform: scale(1.04); }
.gallery-detail-image-btn { aspect-ratio: 4 / 3; max-height: 70vh; }
.gallery-detail-image-btn img { height: 100%; }
.gallery-loading-bar {
    position: absolute; left: 0; top: 0; height: 2px; width: 40%;
    background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
    animation: gal-load 1.1s linear infinite;
}
.gallery-loading-bar.is-done { display: none; }
@keyframes gal-load { from { transform: translateX(-100%); } to { transform: translateX(250%); } }

.gallery-file-row {
    display: flex; align-items: center; justify-content: space-between; gap: var(--space-md);
    margin: -8px 0 var(--space-lg); font-size: 0.72rem; color: var(--color-text-muted); flex-wrap: wrap;
}
.gallery-file-info { display: flex; gap: 10px; font-variant-numeric: tabular-nums; }
.gallery-file-fmt { font-weight: var(--font-weight-semibold); letter-spacing: 0.06em; }
.gallery-download { display: inline-flex; align-items: center; gap: 5px; color: var(--color-text-secondary); transition: color var(--transition-fast); }
.gallery-download:hover { color: var(--color-accent); }
.gallery-download svg { width: 13px; height: 13px; }

.lightbox-status {
    position: absolute; bottom: var(--space-lg); left: 50%; transform: translateX(-50%);
    padding: 6px 12px; border-radius: var(--radius-full); font-size: 0.72rem;
    background: rgba(255,255,255,0.1); color: #fff; backdrop-filter: blur(6px); white-space: nowrap;
    max-width: 90vw; overflow: hidden; text-overflow: ellipsis;
}

/* 上傳表單 */
.gallery-file-err {
    padding: 8px 12px; border-radius: var(--radius-md); margin-top: 6px;
    background: rgba(174, 68, 90, 0.1); color: var(--color-rose); font-size: 0.78rem;
}
.gallery-image-preview { position: relative; }
.gallery-image-preview canvas { max-width: 100%; max-height: 360px; display: block; }
.gallery-preview-meta {
    position: absolute; bottom: 8px; right: 8px; padding: 3px 9px; border-radius: var(--radius-full);
    background: rgba(10, 8, 20, 0.65); color: #fff; font-size: 0.66rem; backdrop-filter: blur(4px);
}
.upload-progress { display: flex; flex-direction: column; gap: 6px; }
.upload-progress-track { height: 6px; border-radius: var(--radius-full); background: var(--color-surface-elevated); overflow: hidden; }
.upload-progress-fill { height: 100%; width: 0; background: linear-gradient(90deg, var(--color-accent), var(--color-blush)); transition: width 0.2s ease; border-radius: var(--radius-full); }
.upload-progress-text { font-size: 0.74rem; color: var(--color-text-secondary); font-variant-numeric: tabular-nums; }
.gallery-zoom-hint {
    position: absolute; bottom: 10px; right: 10px;
    display: flex; align-items: center; gap: 5px;
    padding: 5px 10px; border-radius: var(--radius-full);
    background: rgba(10, 8, 20, 0.65); color: #fff; font-size: 0.68rem;
    backdrop-filter: blur(4px); opacity: 0; transition: opacity var(--transition-fast);
}
.gallery-zoom-hint svg { width: 12px; height: 12px; }
.gallery-detail-image-btn:hover .gallery-zoom-hint { opacity: 1; }

.post-detail-title {
    font-size: 1.4rem; font-weight: var(--font-weight-bold);
    line-height: 1.35; margin-bottom: var(--space-md); letter-spacing: -0.01em;
}
.post-detail-body {
    font-size: 0.9rem; line-height: 1.8; color: var(--color-text-secondary);
    margin-bottom: var(--space-lg); word-break: break-word; overflow-wrap: break-word;
}
.post-detail-body:not(.md-body) p { white-space: pre-line; }

.gallery-meta-grid {
    display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-md);
    padding: var(--space-lg); border-radius: var(--radius-lg);
    background: var(--color-surface); border: 1px solid var(--color-border);
}
.gallery-meta-item { display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.gallery-meta-wide { grid-column: 1 / -1; }
.gallery-meta-value.md-body { white-space: normal; }
.gallery-meta-label {
    font-size: 0.65rem; font-weight: var(--font-weight-semibold);
    color: var(--color-text-muted); letter-spacing: 0.06em; text-transform: uppercase;
}
.gallery-meta-value { font-size: 0.82rem; color: var(--color-text); white-space: pre-line; word-break: break-word; overflow-wrap: break-word; }

.post-detail-actions { display: flex; gap: var(--space-sm); margin-top: var(--space-xl); }
.btn-danger:hover { border-color: var(--color-rose); color: var(--color-rose); }

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

/* ── Lightbox ── */
.lightbox {
    position: fixed; inset: 0; z-index: 300;
    display: flex; align-items: center; justify-content: center;
    background: rgba(5, 4, 10, 0.92); backdrop-filter: blur(6px);
    opacity: 0; visibility: hidden; transition: opacity var(--transition-base), visibility var(--transition-base);
    padding: var(--space-xl);
}
.lightbox.open { opacity: 1; visibility: visible; }
.lightbox img { max-width: 100%; max-height: 100%; object-fit: contain; border-radius: var(--radius-md); }
.lightbox-close {
    position: absolute; top: var(--space-lg); right: var(--space-lg);
    width: 40px; height: 40px; border-radius: var(--radius-full);
    display: flex; align-items: center; justify-content: center;
    background: rgba(255, 255, 255, 0.08); color: #fff;
    transition: background var(--transition-fast);
}
.lightbox-close:hover { background: rgba(255, 255, 255, 0.18); }
.lightbox-close svg { width: 18px; height: 18px; }

/* ── Create / edit form ── */
.gallery-form-page .auth-form { display: flex; flex-direction: column; gap: var(--space-md); }
.gallery-form-page .form-row {
    display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-md);
}
.gallery-form-page .form-group { display: flex; flex-direction: column; gap: 4px; }
.gallery-form-page .form-group label {
    font-size: 0.75rem; font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
}
.required-mark { color: var(--color-rose); margin-left: 2px; }
.gallery-form-page .form-input {
    width: 100%; padding: 9px 12px;
    background: var(--color-bg); border: 1px solid var(--color-border);
    border-radius: var(--radius-md); font-family: var(--font-primary);
    font-size: 0.85rem; color: var(--color-text);
    transition: border-color var(--transition-fast);
}
.gallery-form-page .form-input:focus { outline: none; border-color: var(--color-accent); }
.gallery-form-page textarea.form-input { resize: vertical; line-height: 1.6; }
.gallery-form-page input[type="file"].form-input { padding: 8px; cursor: pointer; }
select.form-input { cursor: pointer; }

.gallery-form-current-image { margin-bottom: var(--space-sm); }
.gallery-form-current-image img {
    max-width: 220px; max-height: 160px; object-fit: cover;
    border-radius: var(--radius-md); border: 1px solid var(--color-border);
    display: block; margin-bottom: 4px;
}
.form-help { font-size: 0.7rem; color: var(--color-text-muted); }

.gallery-image-preview {
    margin-top: var(--space-sm); border-radius: var(--radius-lg); overflow: hidden;
    border: 1px solid var(--color-border); background: var(--color-surface-elevated);
    max-height: 360px; display: flex; align-items: center; justify-content: center;
}
.gallery-image-preview img { width: 100%; max-height: 360px; object-fit: contain; display: block; }

.publish-toggle {
    display: flex; align-items: center; gap: 8px;
    font-size: 0.8rem; color: var(--color-text-secondary); cursor: pointer;
}
.publish-toggle input { width: 16px; height: 16px; accent-color: var(--color-accent); }

.gallery-form-buttons { display: flex; gap: var(--space-sm); margin-top: var(--space-sm); }
.gallery-form-page .auth-submit {
    padding: 10px 20px; margin-top: 0;
    background: var(--color-accent); color: var(--color-accent-text);
    border-radius: var(--radius-md); font-family: var(--font-primary);
    font-size: 0.85rem; font-weight: var(--font-weight-semibold);
    transition: background var(--transition-fast);
}
.gallery-form-page .auth-submit:hover { background: var(--color-accent-hover); }

.auth-error {
    padding: 8px 12px; border-radius: var(--radius-md);
    background: rgba(174, 68, 90, 0.1); color: var(--color-rose);
    font-size: 0.78rem; margin-bottom: var(--space-md);
}

@media (max-width: 768px) {
    .gallery-form-page .form-row { grid-template-columns: 1fr; }
}

/* ── 共同創作 / 標記成員 ────────────────────────────────── */
.user-picker { position: relative; }
.user-chip i { font-style: normal; font-size: .68em; opacity: .7; margin-left: 4px; }
.user-chip.is-pending { border-style: dashed; opacity: .8; }
.user-picker-menu { position: absolute; z-index: 30; margin-top: 4px; min-width: 240px; max-width: 100%;
    background: var(--color-surface, #14111f); border: 1px solid var(--color-border); border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,.35); overflow: hidden; }
.user-picker-item { display: flex; align-items: center; gap: 8px; width: 100%; padding: 7px 10px;
    border: 0; background: none; color: inherit; text-align: left; cursor: pointer; font-size: .85rem; }
.user-picker-item:hover { background: rgba(255,255,255,.07); }
.user-picker-item img, .user-picker-item i { width: 24px; height: 24px; border-radius: 50%; object-fit: cover; flex: none; background: rgba(255,255,255,.1); }
.user-picker-item small { opacity: .55; margin-left: auto; }
.user-picker-empty { padding: 8px 10px; font-size: .8rem; opacity: .6; }
[data-user-picker] { position: relative; }

.gallery-x { opacity: .5; margin: 0 2px; }
.post-detail-author a { color: inherit; text-decoration: none; border-bottom: 1px dotted currentColor; }
.gallery-pending-note { font-weight: 400; opacity: .6; font-size: .78em; margin-left: 4px; }
.gallery-credit-bar { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin: 0 0 14px;
    padding: 10px 14px; border-radius: 10px; font-size: .86rem;
    background: rgba(120,140,255,.1); border: 1px solid rgba(120,140,255,.35); }
.gallery-credit-acts { display: inline-flex; gap: 6px; margin-left: auto; }
.gallery-tagged { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin: 0 0 14px; }
.gallery-tag-chip { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px 4px 4px; border-radius: 999px;
    background: rgba(255,255,255,.06); border: 1px solid var(--color-border); color: inherit; text-decoration: none; font-size: .82rem; }
.gallery-tag-chip img { width: 22px; height: 22px; border-radius: 50%; object-fit: cover; }
.gallery-tag-chip:hover { background: rgba(255,255,255,.12); }
.gallery-invites { margin: 0 0 16px; padding: 12px 16px; border-radius: 12px;
    background: rgba(255,178,87,.1); border: 1px solid rgba(255,178,87,.4); }
.gallery-invites ul { list-style: none; margin: 8px 0 0; padding: 0; display: grid; gap: 6px; }
.gallery-invites li { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; font-size: .88rem; }
.gallery-invites li a { color: inherit; font-weight: 600; }
.gallery-invites li small { opacity: .6; }
.filter-mine { margin-left: auto; }