:root{--bg:#0a0a0a;--surface:#121212;--surface-hover:#181818;--surface-raised:#1c1c1c;--border:#242424;--border-highlight:#383838;--accent:#d4a843;--accent-hover:#e6b955;--accent-dim:#d4a84326;--text:#f0f0f0;--text-muted:#888;--text-dim:#666;--danger:#e05252;--success:#3fb950;--radius:12px;--radius-sm:8px}*,:before,:after{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);color:var(--text);flex-direction:column;min-height:100vh;font-family:Inter,system-ui,-apple-system,sans-serif;line-height:1.5;display:flex;overflow-x:hidden}header{border-bottom:1px solid var(--border);background:var(--surface);z-index:100;justify-content:space-between;align-items:center;gap:12px;height:56px;padding:0 20px;display:flex;position:sticky;top:0}.logo-group{align-items:center;gap:12px;display:flex}.logo{letter-spacing:.08em;color:var(--text-muted);text-transform:uppercase;font-size:15px;font-weight:800}.logo span{color:var(--accent)}.header-actions{align-items:center;gap:8px;display:flex}.btn{border-radius:var(--radius-sm);cursor:pointer;border:1px solid #0000;justify-content:center;align-items:center;gap:6px;padding:6px 12px;font-family:inherit;font-size:12px;font-weight:700;text-decoration:none;transition:background .15s,border-color .15s,color .15s,transform .1s;display:inline-flex}.btn:active{transform:scale(.98)}.btn-primary{background:var(--accent);color:#0d0d0d;border-color:var(--accent)}.btn-primary:hover{background:var(--accent-hover);border-color:var(--accent-hover)}.btn-ghost{color:var(--text-muted);border-color:var(--border);background:0 0}.btn-ghost:hover{background:var(--surface-hover);color:#fff;border-color:var(--border-highlight)}.btn-magic{color:#fff;background:linear-gradient(135deg,#d4a84340 0%,#9370db40 100%);border:1px solid #d4a84380}.btn-magic:hover{border-color:var(--accent);background:linear-gradient(135deg,#d4a84366 0%,#9370db66 100%)}.btn-sm{padding:4px 10px;font-size:11px}.app-layout{flex:1;grid-template-columns:360px 1fr;height:calc(100vh - 56px);display:grid;overflow:hidden}.sidebar{background:var(--surface);border-right:1px solid var(--border);flex-direction:column;gap:20px;padding:20px;display:flex;overflow-y:auto}.sidebar-section{flex-direction:column;gap:12px;display:flex}.section-title{text-transform:uppercase;letter-spacing:.08em;color:var(--accent);justify-content:space-between;align-items:center;font-size:11px;font-weight:800;display:flex}.layer-slots-grid{flex-direction:column;gap:10px;display:flex}.layer-slot-card{border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;background:#161616;flex-direction:column;gap:10px;padding:12px;transition:border-color .2s,background .2s;display:flex}.layer-slot-card.active{border-color:var(--accent);background:#d4a8430a}.layer-slot-header{justify-content:space-between;align-items:center;display:flex}.layer-badge{color:#fff;align-items:center;gap:6px;font-size:11px;font-weight:700;display:inline-flex}.layer-slot-card.active .layer-badge{color:var(--accent)}.layer-thumb-container{align-items:center;gap:12px;display:flex}.layer-thumb{border:1px solid var(--border);object-fit:cover;width:54px;height:54px;color:var(--text-dim);background:#111;border-radius:6px;flex-shrink:0;justify-content:center;align-items:center;font-size:20px;display:flex;overflow:hidden}.layer-thumb img{object-fit:cover;width:100%;height:100%}.layer-meta{flex-direction:column;flex:1;gap:4px;display:flex}.layer-name{color:#f0f0f0;white-space:nowrap;text-overflow:ellipsis;font-size:13px;font-weight:700;overflow:hidden}.layer-hint{color:var(--text-muted);font-size:11px}.swap-btn-container{justify-content:center;margin:-4px 0;display:flex}.swap-btn{border:1px solid var(--border);color:var(--accent);cursor:pointer;background:#202020;border-radius:20px;padding:3px 12px;font-size:11px;font-weight:700;transition:all .15s}.swap-btn:hover{background:var(--accent);color:#0d0d0d}.blend-modes-grid{grid-template-columns:repeat(2,1fr);gap:6px;display:grid}.blend-btn{border:1px solid var(--border);color:var(--text-muted);cursor:pointer;text-align:left;background:#181818;border-radius:6px;flex-direction:column;gap:2px;padding:8px 10px;font-size:11px;font-weight:700;transition:all .15s;display:flex}.blend-btn span.mode-name{color:#fff}.blend-btn span.mode-desc{color:var(--text-dim);font-size:9px;font-weight:500}.blend-btn:hover{border-color:var(--border-highlight);color:#fff}.blend-btn.active{background:var(--accent);border-color:var(--accent)}.blend-btn.active span.mode-name{color:#0d0d0d}.blend-btn.active span.mode-desc{color:#000000b3}.control-group{flex-direction:column;gap:6px;display:flex}.control-label-row{color:var(--text-muted);justify-content:space-between;align-items:center;font-size:12px;font-weight:600;display:flex}.control-val-badge{color:var(--accent);font-family:JetBrains Mono,monospace,sans-serif;font-size:11px}.optics-slider{appearance:none;cursor:pointer;background:#242424;border-radius:3px;outline:none;width:100%;height:5px}.optics-slider::-webkit-slider-thumb{appearance:none;background:var(--accent);cursor:pointer;border-radius:50%;width:16px;height:16px;transition:transform .1s;box-shadow:0 0 6px #000000b3}.optics-slider::-webkit-slider-thumb:hover{transform:scale(1.15)}.demos-grid{grid-template-columns:repeat(3,1fr);gap:8px;display:grid}.demo-card{border:1px solid var(--border);text-align:center;cursor:pointer;background:#161616;border-radius:6px;flex-direction:column;align-items:center;gap:4px;padding:8px 6px;transition:all .15s;display:flex}.demo-card:hover{border-color:var(--accent);background:var(--surface-hover)}.demo-card.active{border-color:var(--accent);background:#d4a8431a}.demo-card .demo-icon{font-size:18px}.demo-card .demo-title{color:#fff;font-size:10px;font-weight:700}.workspace-area{background:#0d0d0d;flex-direction:column;display:flex;position:relative;overflow:hidden}.workspace-toolbar{border-bottom:1px solid var(--border);background:#141414;justify-content:space-between;align-items:center;gap:12px;height:48px;padding:0 16px;display:flex}.ratio-pills,.active-layer-pills{align-items:center;gap:4px;display:flex}.pill-btn{border:1px solid var(--border);color:var(--text-muted);cursor:pointer;background:#1c1c1c;border-radius:20px;padding:4px 10px;font-size:11px;font-weight:700;transition:all .15s}.pill-btn:hover{color:#fff;border-color:var(--border-highlight)}.pill-btn.active{background:var(--accent);color:#0d0d0d;border-color:var(--accent)}.canvas-viewport{cursor:grab;-webkit-user-select:none;user-select:none;flex:1;justify-content:center;align-items:center;padding:20px;display:flex;position:relative;overflow:hidden}.canvas-viewport.dragging{cursor:grabbing}.canvas-frame-wrap{background:#000;border:1px solid #ffffff14;border-radius:4px;position:relative;overflow:hidden;box-shadow:0 16px 50px #000000d9}#double-canvas{object-fit:contain;max-width:100%;max-height:100%;display:block}.gesture-tips-overlay{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);color:#aaa;pointer-events:none;background:#121212d9;border:1px solid #ffffff1a;border-radius:20px;align-items:center;gap:12px;padding:5px 14px;font-size:11px;display:flex;position:absolute;bottom:14px;left:50%;transform:translate(-50%)}.gesture-tips-overlay span strong{color:var(--accent)}.layer-indicator-badge{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);color:var(--accent);pointer-events:none;background:#141414d9;border:1px solid #d4a84366;border-radius:20px;align-items:center;gap:6px;padding:4px 10px;font-size:11px;font-weight:700;display:flex;position:absolute;top:14px;left:14px}@media (width<=960px){.app-layout{grid-template-rows:auto 1fr;grid-template-columns:1fr;height:auto;overflow:visible}.sidebar{border-right:none;border-bottom:1px solid var(--border);height:auto;max-height:480px}.canvas-viewport{min-height:420px}}