.project-version-history-overlay{position:fixed;inset:0;z-index:var(--z-modal);display:flex;align-items:center;justify-content:center;padding:24px;background:#0000009e;backdrop-filter:blur(3px);box-sizing:border-box}.project-version-history-dialog{width:min(960px,96vw);max-height:86vh;display:flex;flex-direction:column;background:var(--color-base);color:var(--color-text-primary);border:1px solid var(--layer-btn-border);border-radius:8px;box-shadow:0 18px 48px #00000073;overflow:hidden}.project-version-history-header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px;border-bottom:1px solid var(--layer-separator)}.project-version-history-title{margin:0;font-size:16px;font-weight:700;line-height:1.4}.project-version-history-close{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border:1px solid var(--btn-hover-border-color);border-radius:6px;background:var(--btn-bg);color:var(--color-text-primary);cursor:pointer}.project-version-history-close:hover{background:var(--btn-hover-bg)}.project-version-history-body{position:relative;display:grid;grid-template-columns:minmax(220px,.9fr) minmax(0,1.4fr);gap:0;min-height:360px;overflow:hidden}.project-version-history-list{display:flex;flex-direction:column;min-width:0;border-right:1px solid var(--layer-separator);overflow:hidden}.project-version-history-list-header{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:10px 12px;border-bottom:1px solid var(--layer-separator)}.project-version-history-refresh{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border:1px solid var(--btn-hover-border-color);border-radius:6px;background:var(--btn-bg);color:var(--color-text-primary);cursor:pointer}.project-version-history-refresh:hover{background:var(--btn-hover-bg)}.project-version-history-items{overflow:auto;padding:8px}.project-version-history-item{width:100%;display:grid;grid-template-columns:minmax(52px,64px) minmax(0,1fr);align-items:center;gap:10px;padding:8px;margin:0 0 8px;border:1px solid var(--layer-btn-border);border-radius:8px;background:var(--layer-btn-bg);color:var(--color-text-primary);text-align:left;cursor:pointer}.project-version-history-item:hover{background:var(--layer-btn-hover)}.project-version-history-item.is-selected{border-color:var(--btn-active-border-color);background:var(--btn-active-bg)}.project-version-history-item.is-unavailable{opacity:.72}.project-version-history-thumb{width:100%;aspect-ratio:4 / 3;object-fit:cover;border-radius:6px;background:var(--layer-preview-bg);border:1px solid var(--layer-preview-border)}.project-version-history-thumb-empty{display:flex;align-items:center;justify-content:center;width:100%;aspect-ratio:4 / 3;border-radius:6px;background:var(--layer-preview-bg);border:1px solid var(--layer-preview-border);color:var(--color-text-secondary)}.project-version-history-item-main{min-width:0;display:flex;flex-direction:column;gap:3px}.project-version-history-item-title{font-size:13px;font-weight:700;line-height:1.35;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.project-version-history-item-meta{font-size:11px;line-height:1.35;color:var(--color-text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.project-version-history-preview{min-width:0;display:flex;flex-direction:column;overflow:hidden}.project-version-history-preview-stage{flex:1;min-height:240px;display:flex;align-items:center;justify-content:center;padding:14px;background:#0000001f;overflow:auto}.project-version-history-preview-image{max-width:100%;max-height:52vh;object-fit:contain;border-radius:8px;border:1px solid var(--layer-preview-border);background:var(--layer-preview-bg)}.project-version-history-empty{display:flex;align-items:center;justify-content:center;min-height:180px;padding:24px;color:var(--color-text-secondary);font-size:13px;line-height:1.6;text-align:center}.project-version-history-details{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;padding:12px 14px;border-top:1px solid var(--layer-separator)}.project-version-history-detail{min-width:0}.project-version-history-detail-label{font-size:10px;line-height:1.3;color:var(--color-text-secondary)}.project-version-history-detail-value{font-size:12px;line-height:1.4;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.project-version-history-actions{display:flex;align-items:center;justify-content:flex-end;gap:8px;padding:12px 14px;border-top:1px solid var(--layer-separator)}.project-version-history-action{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:34px;padding:7px 14px;border:1px solid var(--btn-hover-border-color);border-radius:6px;background:var(--btn-bg);color:var(--color-text-primary);cursor:pointer}.project-version-history-action:hover{background:var(--btn-hover-bg)}.project-version-history-action.primary{border-color:var(--btn-active-border-color);background:var(--color-accent);color:#fff}.project-version-history-action.primary:hover{background:var(--color-accent-hover)}.project-version-history-body.is-locked .project-version-history-list,.project-version-history-body.is-locked .project-version-history-preview{filter:blur(7px);opacity:.58;pointer-events:none;user-select:none}.project-version-history-paywall{position:absolute;inset:0;z-index:2;display:flex;align-items:center;justify-content:center;padding:20px;background:#00000047;box-sizing:border-box}.project-version-history-paywall[hidden]{display:none}.project-version-history-paywall-card{inline-size:min(100%,28rem);display:flex;flex-direction:column;align-items:center;gap:10px;padding:18px;border:1px solid var(--btn-active-border-color);border-radius:8px;background:#191919eb;box-shadow:0 16px 40px #0000006b;text-align:center}.project-version-history-paywall-icon{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:8px;background:var(--btn-active-bg);color:var(--color-text-primary)}.project-version-history-paywall-card h3{margin:0;font-size:16px;font-weight:700;line-height:1.35}.project-version-history-paywall-card p{margin:0;color:var(--color-text-secondary);font-size:12px;line-height:1.55}.project-version-history-locked-item{cursor:default}.project-version-history-locked-thumb,.project-version-history-locked-preview-cell,.project-version-history-locked-line{border-radius:6px;background:linear-gradient(90deg,#ffffff12,#ffffff24,#ffffff12);background-size:180% 100%;animation:project-version-history-sheen 1.8s ease-in-out infinite}.project-version-history-locked-thumb{width:100%;aspect-ratio:4 / 3;border:1px solid var(--layer-preview-border)}.project-version-history-locked-line{height:12px}.project-version-history-locked-line.wide{width:86%}.project-version-history-locked-line.narrow{width:54%}.project-version-history-locked-preview{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;width:min(100%,340px);aspect-ratio:3 / 4;padding:8px;border:1px solid var(--layer-preview-border);border-radius:8px;background:var(--layer-preview-bg)}.project-version-history-locked-preview-cell{min-width:0;min-height:0}.project-version-history-locked-detail{display:flex;flex-direction:column;gap:6px}@keyframes project-version-history-sheen{0%{background-position:0 0}to{background-position:-180% 0}}.project-version-history-action:disabled,.project-version-history-refresh:disabled{opacity:.5;cursor:not-allowed}@media(max-width:720px){.project-version-history-overlay{padding:12px}.project-version-history-dialog{max-height:92vh}.project-version-history-body{grid-template-columns:1fr;min-height:0;overflow:auto}.project-version-history-list{border-right:none;border-bottom:1px solid var(--layer-separator);max-height:34vh}.project-version-history-preview-stage{min-height:220px}.project-version-history-details{grid-template-columns:1fr}}