.app{display:flex;flex-direction:column;height:100vh}.app-header{flex:0 0 auto;background:var(--surface);border-bottom:1px solid var(--border);padding:14px 20px;display:flex;flex-wrap:wrap;align-items:center;gap:12px 24px}.header-title{display:flex;align-items:center;gap:12px}.app-header h1{margin:0;font-size:20px;font-weight:700}.sync-badge{font-size:11px;padding:3px 8px;border-radius:10px;background:#2c323b;color:var(--muted)}.sync-badge.online{background:#57d98a26;color:var(--success)}.sync-badge.offline{background:#e07a7a26;color:var(--danger)}.stats{display:flex;gap:14px;margin-left:auto}.stat{font-size:13px;color:var(--muted)}.stat b{color:var(--text);margin-left:4px}.stat.use b{color:var(--success)}.stat.unused b{color:var(--danger)}.stat.unclassified b{color:var(--warn)}.controls{display:flex;align-items:center;gap:12px;width:100%}.search{flex:0 1 280px;background:var(--bg);border:1px solid var(--border);color:var(--text);padding:8px 12px;border-radius:6px;font-size:14px}.search:focus{outline:none;border-color:var(--accent)}.filter-tabs{display:flex;gap:6px}.filter-tabs button{background:var(--bg);border:1px solid var(--border);color:var(--muted);padding:7px 14px;border-radius:6px;font-size:13px}.filter-tabs button.active{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}.main{flex:1 1 auto;display:flex;overflow:hidden}.grid-panel{flex:1 1 auto;overflow-y:auto;padding:16px;display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:14px;align-content:start}.empty-grid{grid-column:1 / -1;color:var(--muted);text-align:center;padding:60px 20px}.grid-footer{grid-column:1 / -1;display:flex;justify-content:center;padding:12px 0 24px}.pagination{display:flex;align-items:center;gap:12px;background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:8px 14px}.page-btn{background:var(--bg);border:1px solid var(--border);color:var(--text);padding:6px 14px;border-radius:6px;font-size:13px}.page-btn:disabled{opacity:.4;cursor:not-allowed}.page-info{font-size:13px;color:var(--muted);min-width:60px;text-align:center}.item-card{background:var(--surface);border:1px solid var(--border);border-radius:10px;overflow:hidden;cursor:pointer;transition:border-color .15s,transform .1s;position:relative}.item-card:hover{border-color:#3b4451}.item-card.selected{border-color:var(--accent);box-shadow:0 0 0 2px #4ea3ff40}.item-card.status-use{border-left:4px solid var(--success)}.item-card.status-unused{border-left:4px solid var(--danger)}.item-card.status-unclassified{border-left:4px solid var(--warn)}.card-preview{aspect-ratio:4 / 3;background:#111;display:flex;align-items:center;justify-content:center;overflow:hidden}.card-preview img{width:100%;height:100%;object-fit:contain}.card-body{padding:10px 12px 12px}.card-title{font-weight:600;font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:4px}.card-meta{display:flex;gap:8px;font-size:12px;color:var(--muted);margin-bottom:6px}.card-metrics{display:flex;gap:10px;font-size:11px;color:#6f7885}.tier{display:inline-block;padding:1px 6px;border-radius:4px;font-size:11px;font-weight:600}.tier-1{background:#57d98a26;color:var(--success)}.tier-2{background:#e0c25a26;color:var(--warn)}.status-badge{position:absolute;top:8px;right:8px;font-size:10px;padding:2px 7px;border-radius:8px;font-weight:600;background:var(--bg)}.status-badge.use{color:var(--success)}.status-badge.unused{color:var(--danger)}.status-badge.unclassified{color:var(--warn)}.card-actions{display:flex;gap:8px;margin-top:10px}.card-actions button,.detail-actions button{flex:1;border:none;padding:8px;border-radius:6px;font-weight:700;font-size:13px}.btn-use{background:#57d98a26;color:var(--success)}.btn-use.active{background:var(--success);color:#0b1c12}.btn-unused{background:#e07a7a26;color:var(--danger)}.btn-unused.active{background:var(--danger);color:#1f0d0d}.detail-panel{flex:0 0 380px;background:var(--surface);border-left:1px solid var(--border);padding:20px;overflow-y:auto;display:flex;flex-direction:column;gap:16px}.detail-panel.empty{justify-content:center;color:var(--muted);text-align:center}.detail-title{margin:0;font-size:20px;word-break:break-all}.detail-meta{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--muted)}.detail-gallery{display:grid;grid-template-columns:1fr 1fr;gap:10px}.gallery-item{aspect-ratio:4 / 3;background:#111;border-radius:8px;overflow:hidden}.gallery-item img{width:100%;height:100%;object-fit:contain}.detail-info{display:grid;gap:8px;font-size:13px}.detail-info div{display:flex;justify-content:space-between}.detail-info label{color:var(--muted)}.detail-actions{display:flex;flex-direction:column;gap:10px;margin-top:auto}.detail-actions .large{padding:12px;font-size:14px}.btn-reset{background:transparent;border:1px solid var(--border);color:var(--muted);padding:10px;border-radius:6px}.shortcuts h4{margin:24px 0 12px;color:var(--text)}.shortcuts ul{list-style:none;padding:0;margin:0;text-align:left;display:inline-block}.shortcuts li{margin-bottom:8px}kbd{background:var(--bg);border:1px solid var(--border);padding:2px 7px;border-radius:4px;font-size:12px;margin-right:6px}.center{height:100vh;display:flex;align-items:center;justify-content:center;color:var(--muted)}.center.error{color:var(--danger)}:root{--bg: #14161a;--surface: #1b1f26;--surface-hover: #20262f;--border: #2c323b;--text: #dfe3e8;--muted: #8b94a0;--accent: #4ea3ff;--success: #57d98a;--danger: #e07a7a;--warn: #e0c25a}*{box-sizing:border-box}html,body,#root{margin:0;padding:0;width:100%;height:100%}body{background:var(--bg);color:var(--text);font:14px/1.6 Malgun Gothic,Segoe UI,system-ui,sans-serif;overflow:hidden}button{font-family:inherit;cursor:pointer}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg)}::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#3b4451}