*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--sidebar-w: 320px;--header-h: 52px;--bg: #0f0f14;--surface: #1a1a24;--surface2: #22222f;--border: #2e2e3e;--accent: #5b8ef0;--accent-hover: #7aa3f5;--text: #e8e8f0;--text-muted: #8888a0;--radius: 8px}html,body,#root{height:100%}body{font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;background:var(--bg);color:var(--text);font-size:14px;line-height:1.5;overflow:hidden}.app-header{height:var(--header-h);background:var(--surface);border-bottom:1px solid var(--border);display:flex;align-items:center;padding:0 20px;position:fixed;top:0;left:0;right:0;z-index:100}.app-header-inner{display:flex;align-items:center;gap:12px}.app-logo{display:flex;align-items:center;gap:8px;font-weight:600;font-size:15px;color:var(--text)}.app-logo svg{color:var(--accent)}.app-body{display:flex;height:calc(100vh - var(--header-h));margin-top:var(--header-h);overflow:hidden}.sidebar{width:var(--sidebar-w);background:var(--surface);border-right:1px solid var(--border);display:flex;flex-direction:column;flex-shrink:0;overflow:hidden}.sidebar-content{flex:1;overflow-y:auto;padding:16px;scrollbar-width:thin;scrollbar-color:var(--border) transparent}.sidebar-content::-webkit-scrollbar{width:4px}.sidebar-content::-webkit-scrollbar-thumb{background:var(--border);border-radius:2px}.sidebar-tabs{display:flex;border-bottom:1px solid var(--border);overflow-x:auto;scrollbar-width:none;flex-shrink:0}.sidebar-tabs::-webkit-scrollbar{display:none}.sidebar-tab{flex:1;padding:10px 4px;background:none;border:none;color:var(--text-muted);font-size:11px;font-weight:500;cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:3px;transition:color .15s,background .15s;min-width:44px;white-space:nowrap}.sidebar-tab:hover{color:var(--text);background:var(--surface2)}.sidebar-tab.active{color:var(--accent);border-bottom:2px solid var(--accent)}.sidebar-tab-icon{font-size:16px}.logo-scroll-outer{width:calc(var(--sidebar-w) - 32px);overflow-x:auto;overflow-y:visible;margin-bottom:4px;padding:4px 0 8px;-webkit-overflow-scrolling:touch;scrollbar-width:none;cursor:grab;user-select:none;-webkit-user-select:none}.logo-scroll-outer:active{cursor:grabbing}.logo-scroll-outer::-webkit-scrollbar{display:none}.logo-scroll-inner{display:flex;flex-direction:row;flex-wrap:nowrap;gap:8px;width:max-content}.panel-section{margin-bottom:20px}.panel-section-title{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);margin-bottom:10px}.ratio-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.ratio-btn{display:flex;flex-direction:column;align-items:center;gap:4px;padding:8px 4px;background:var(--surface2);border:1.5px solid var(--border);border-radius:var(--radius);cursor:pointer;transition:all .15s;color:var(--text-muted)}.ratio-btn:hover{border-color:var(--accent);color:var(--text)}.ratio-btn.active{border-color:var(--accent);background:var(--accent)22;color:var(--accent)}.ratio-visual{background:currentColor;opacity:.7;border-radius:2px;max-width:32px;max-height:32px}.ratio-label{font-size:11px;font-weight:600}.ratio-desc{font-size:9px;color:var(--text-muted);text-align:center}.ratio-btn.active .ratio-desc{color:var(--accent);opacity:.8}.layout-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.layout-btn{display:flex;flex-direction:column;align-items:center;gap:5px;padding:10px 6px;background:var(--surface2);border:1.5px solid var(--border);border-radius:var(--radius);cursor:pointer;transition:all .15s;color:var(--text-muted)}.layout-btn:hover{border-color:var(--accent);color:var(--text)}.layout-btn.active{border-color:var(--accent);background:var(--accent)22;color:var(--accent)}.layout-icon svg{width:36px;height:28px;fill:currentColor}.layout-label{font-size:10px;font-weight:500;text-align:center}.cell-actions{display:flex;flex-direction:column;gap:6px}.cell-action-row{display:flex;gap:6px}.cell-action-btn{flex:1;padding:7px;background:var(--surface2);border:1px solid var(--border);border-radius:var(--radius);color:var(--text-muted);font-size:12px;cursor:pointer;transition:all 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.15s;margin-top:8px}.btn-export:hover{background:var(--accent-hover)}.btn-export:disabled{opacity:.5;cursor:not-allowed}.app-preview{flex:1;background:#13131a;display:flex;align-items:center;justify-content:center;overflow:auto;padding:24px}.preview-wrapper{position:relative;display:flex;align-items:center;justify-content:center;width:100%;height:100%}.preview-canvas{position:relative;background:#fff;box-shadow:0 8px 40px #0009;overflow:hidden;flex-shrink:0}.photo-area{position:relative;width:100%;overflow:hidden}.layout-container{width:100%;height:100%;display:flex}.layout-container.dir-h{flex-direction:row}.layout-container.dir-v{flex-direction:column}.layout-child{position:relative;flex-shrink:0}.divider{flex-shrink:0;background:transparent;position:relative;z-index:10;transition:background .15s}.divider:hover,.divider.dragging{background:var(--accent)}.divider.dir-h{width:4px;cursor:col-resize}.divider.dir-v{height:4px;cursor:row-resize}.cell{width:100%;height:100%;position:relative;background:#e8e8e8;cursor:pointer;-webkit-user-select:none;user-select:none}.cell.selected:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;border:2px solid var(--accent);pointer-events:none;z-index:5}.cell.has-photo{cursor:move}.cell-photo{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;object-fit:cover;pointer-events:none;transform-origin:center;will-change:transform;display:block}.cell-replace-btn{position:absolute;bottom:8px;right:8px;display:flex;align-items:center;gap:4px;background:#0009;color:#fff;border:none;font-size:12px;font-weight:600;cursor:pointer;padding:6px 12px;border-radius:16px;z-index:10;pointer-events:auto;transition:background 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.divider-handle{width:24px;height:4px}.counter-ctrl{display:flex;align-items:center;gap:0;background:var(--surface2);border:1px solid var(--border);border-radius:6px;overflow:hidden}.counter-btn{width:30px;height:28px;background:none;border:none;color:var(--text);font-size:16px;cursor:pointer;transition:background .15s;display:flex;align-items:center;justify-content:center;flex-shrink:0}.counter-btn:hover:not(:disabled){background:var(--accent)33;color:var(--accent)}.counter-btn:disabled{opacity:.3;cursor:not-allowed}.counter-val{min-width:28px;text-align:center;font-size:13px;font-weight:600;color:var(--text);border-left:1px solid var(--border);border-right:1px solid var(--border);height:28px;line-height:28px}.slider-row{display:flex;align-items:center;gap:8px}.slider-val{font-size:12px;color:var(--text-muted);min-width:32px;text-align:right}.gap-line{background:var(--bg);flex-shrink:0}.drag-list{display:flex;flex-direction:column;gap:4px}.drag-item{display:flex;align-items:center;gap:6px;padding:5px 6px;background:var(--surface2);border:1px solid var(--border);border-radius:6px;cursor:grab;transition:opacity .15s,border-color .15s,background .15s;min-height:34px;width:100%;box-sizing:border-box}.drag-item:active{cursor:grabbing}.drag-item.dragging{opacity:.4}.drag-item.drag-over{border-color:var(--accent);background:var(--accent)18}.drag-handle{font-size:14px;color:var(--text-muted);cursor:grab;flex-shrink:0;line-height:1;-webkit-user-select:none;user-select:none}.drag-item-label{font-size:12px;color:var(--text-muted);flex:0 0 64px;white-space:nowrap}@media (max-width: 768px){html,body,#root{height:100%;overflow:hidden}.app-body{flex-direction:column-reverse;overflow:hidden;height:calc(100vh - var(--header-h))}.sidebar{width:100%;height:33vh;flex-shrink:0;border-right:none;border-top:1px solid var(--border);overflow:hidden;display:flex;flex-direction:column}.sidebar-content{flex:1;overflow-y:auto;min-height:0}.app-preview{flex:1;min-height:0;padding:12px}:root{--sidebar-w: 100%}.sidebar-tab{padding:8px 2px;font-size:10px}.sidebar-tab-icon{font-size:13px}.ratio-desc{display:none}}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000040;display:flex;align-items:flex-end;justify-content:center;z-index:2000;padding:20px 20px 50px;animation:fadeIn .3s ease-out}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.modal-content{background:#fff;border:1px solid var(--border);border-radius:20px;width:100%;max-width:380px;padding:32px 24px;box-shadow:0 15px 40px #00000026;text-align:center;animation:slideUpBottom .35s cubic-bezier(.175,.885,.32,1.2)}@keyframes slideUpBottom{0%{transform:translateY(40px);opacity:0}to{transform:translateY(0);opacity:1}}.modal-title{font-size:18px;font-weight:700;margin-bottom:12px;color:#111}.modal-body{font-size:14px;line-height:1.6;color:#444;margin-bottom:24px}.modal-body strong{color:var(--accent)}.modal-footer{display:flex;flex-direction:column;gap:8px}.btn-modal{width:100%;padding:12px;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer;border:none;transition:all .2s}.btn-copy{background:var(--accent);color:#fff}.btn-copy:hover{background:var(--accent-hover)}.btn-close{background:#f1f5f9;color:#64748b}.btn-close:hover{background:#e2e8f0;color:#334155}.install-banner{position:fixed;left:50%;bottom:16px;transform:translate(-50%);z-index:1500;display:flex;align-items:center;gap:12px;width:calc(100% - 32px);max-width:460px;padding:10px 12px;background:var(--panel, #1a1a24);border:1px solid var(--border);border-radius:14px;box-shadow:0 10px 30px #00000073;animation:slideUpBottom .35s ease-out}.install-banner-icon{width:38px;height:38px;border-radius:9px;flex-shrink:0;object-fit:contain;background:#fff}.install-banner-text{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px;line-height:1.35}.install-banner-text strong{font-size:13px;color:var(--text)}.install-banner-text span{font-size:11px;color:var(--text-muted)}.install-banner-text b{color:var(--accent)}.install-banner-btn{flex-shrink:0;padding:8px 16px;border:none;border-radius:9px;background:var(--accent);color:#fff;font-size:13px;font-weight:600;cursor:pointer}.install-banner-btn:hover{background:var(--accent-hover)}.install-banner-close{flex-shrink:0;width:26px;height:26px;border:none;border-radius:7px;background:transparent;color:var(--text-muted);font-size:13px;cursor:pointer}.install-banner-close:hover{background:var(--border);color:var(--text)}