:root{--bg: #0d0d10;--surface: #16171c;--surface-2: #1d1f26;--surface-3: #24262f;--border: #2a2d36;--border-strong: #3a3d48;--text: #e6e8ee;--muted: #8a8f9c;--accent: #6d71f0;--accent-hover: #7d80f5;--accent-soft: rgba(109, 113, 240, .15);--danger: #f06d6d;--success: #5fc88f;--warning: #f0b86d;--radius: 10px;--radius-sm: 6px;--shadow: 0 12px 32px rgba(0, 0, 0, .35);--font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Inter", "Segoe UI", Roboto, sans-serif;--font-mono: ui-monospace, SFMono-Regular, "Cascadia Code", Menlo, Monaco, Consolas, monospace}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%;width:100%;overflow:hidden}body{font-family:var(--font);background:var(--bg);color:var(--text);font-size:14px;-webkit-font-smoothing:antialiased}button{font-family:inherit;background:none;border:none;color:inherit;cursor:pointer}input,select,textarea{font-family:inherit;background:var(--surface-3);border:1px solid var(--border);color:var(--text);border-radius:var(--radius-sm);padding:8px 10px;font-size:13px;outline:none;transition:border-color .15s ease;width:100%}input:focus,select:focus,textarea:focus{border-color:var(--accent)}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#4a4d58}.app{display:grid;grid-template-rows:52px 1fr;height:100vh}.workspace{display:grid;grid-template-columns:280px 1fr 300px;height:100%;overflow:hidden}.topbar{display:flex;align-items:center;justify-content:space-between;padding:0 16px;background:var(--surface);border-bottom:1px solid var(--border);gap:16px}.topbar-section{display:flex;align-items:center;gap:8px}.topbar-logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:15px;letter-spacing:-.01em}.topbar-logo-mark{width:28px;height:28px;background:linear-gradient(135deg,var(--accent),#8a5fea);border-radius:8px;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:13px}.topbar-title{color:var(--muted);font-size:13px}.topbar-title strong{color:var(--text);font-weight:600}.btn{display:inline-flex;align-items:center;gap:6px;padding:7px 12px;border-radius:var(--radius-sm);font-size:13px;font-weight:500;background:var(--surface-2);color:var(--text);border:1px solid var(--border);transition:background .15s ease,border-color .15s ease}.btn:hover:not(:disabled){background:var(--surface-3);border-color:var(--border-strong)}.btn:disabled{opacity:.4;cursor:not-allowed}.btn-primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn-primary:hover:not(:disabled){background:var(--accent-hover);border-color:var(--accent-hover)}.btn.active{background:var(--surface-3);border-color:var(--accent);color:#fff}.btn-icon{padding:7px;width:32px;height:32px;display:inline-flex;align-items:center;justify-content:center}.btn-ghost{background:transparent;border-color:transparent}.btn-ghost:hover:not(:disabled){background:var(--surface-2)}.sidebar{background:var(--surface);display:flex;flex-direction:column;overflow:hidden}.sidebar-left{border-right:1px solid var(--border)}.sidebar-right{border-left:1px solid var(--border)}.sidebar-tabs{display:flex;border-bottom:1px solid var(--border);background:var(--surface)}.sidebar-tab{flex:1;padding:10px 8px;font-size:12px;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.05em;border-bottom:2px solid transparent;transition:color .15s ease,border-color .15s ease}.sidebar-tab.active{color:var(--text);border-bottom-color:var(--accent)}.sidebar-tab:hover{color:var(--text)}.sidebar-body{flex:1;overflow-y:auto;padding:12px}.sidebar-empty{padding:32px 16px;text-align:center;color:var(--muted);font-size:13px;line-height:1.5}.layers-panel{display:flex;flex-direction:column;gap:8px}.layers-summary{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:4px}.layers-summary div{padding:10px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface-2)}.layers-summary span{display:block;color:var(--text);font-size:18px;font-weight:800;line-height:1}.layers-summary small{display:block;margin-top:4px;color:var(--muted);font-size:11px}.layers-search{display:flex;align-items:center;gap:8px;padding:0 9px;min-height:34px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface-2);color:var(--muted)}.layers-search input{padding:0;border:0;background:transparent;font-size:12px}.layers-breadcrumb{padding:8px 10px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface-2);color:var(--muted);font-size:11px;line-height:1.35}.layer-item{display:flex;align-items:center;gap:7px;min-height:36px;padding:5px 7px 5px calc(7px + var(--depth) * 13px);border-radius:var(--radius-sm);cursor:pointer;-webkit-user-select:none;user-select:none;border:1px solid transparent;transition:background .12s ease,border-color .12s ease}.layer-item:hover{background:var(--surface-2);border-color:var(--border)}.layer-item.selected{background:var(--accent-soft);border-color:var(--accent);color:#fff}.layer-toggle{width:16px;height:16px;display:flex;align-items:center;justify-content:center;color:var(--muted);flex-shrink:0}.layer-icon{width:24px;height:24px;display:flex;align-items:center;justify-content:center;flex-shrink:0;border-radius:6px;background:var(--surface-2);color:var(--muted)}.layer-item.selected .layer-icon{background:var(--accent);color:#fff}.layer-copy{min-width:0;flex:1;display:flex;flex-direction:column;gap:2px}.layer-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text);font-size:12px;font-weight:650}.layer-meta{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--muted);font-family:var(--font-mono);font-size:10px}.layer-eye{color:var(--muted);opacity:0;transition:opacity .12s ease}.layer-item:hover .layer-eye,.layer-item.selected .layer-eye{opacity:1}.lib-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}.lib-item{background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius);padding:14px 8px;text-align:center;cursor:grab;transition:background .15s ease,border-color .15s ease,transform .1s ease;display:flex;flex-direction:column;align-items:center;gap:8px}.lib-item:hover{background:var(--surface-3);border-color:var(--accent);transform:translateY(-1px)}.lib-item:active{cursor:grabbing}.drag-ghost{position:fixed;z-index:3000;pointer-events:none;padding:8px 10px;border-radius:8px;background:var(--accent);color:#fff;font-size:12px;font-weight:700;box-shadow:var(--shadow)}.lib-item-icon{width:32px;height:32px;display:flex;align-items:center;justify-content:center;color:var(--accent)}.lib-item-label{font-size:12px;color:var(--text);font-weight:500}.lib-section-title{font-size:11px;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.08em;margin:12px 4px 8px}.lib-section-title:first-child{margin-top:0}.canvas-area{background:#0a0a0d;position:relative;display:flex;flex-direction:column;overflow:hidden}.canvas-toolbar{display:flex;align-items:center;justify-content:center;gap:6px;padding:10px 16px;background:var(--surface);border-bottom:1px solid var(--border)}.canvas-device-btn{padding:6px 10px;border-radius:var(--radius-sm);font-size:12px;color:var(--muted);background:transparent;display:inline-flex;align-items:center;gap:6px;transition:background .15s ease,color .15s ease}.canvas-device-btn.active{background:var(--surface-3);color:var(--text)}.canvas-device-btn:hover{color:var(--text)}.canvas-zoom{margin-left:auto;font-size:12px;color:var(--muted)}.canvas-frame-wrap{flex:1;display:flex;justify-content:center;align-items:flex-start;overflow:auto;padding:24px 36px;scrollbar-gutter:stable both-edges}.canvas-frame{background:#fff;box-shadow:0 20px 60px #0006;border-radius:8px;overflow:hidden;transition:width .25s ease;width:100%;max-width:100%;border:none;display:block;height:calc(100vh - 156px);flex-shrink:0}.canvas-frame.tablet{width:768px}.canvas-frame.mobile{width:min(380px,calc(100% - 24px))}.props-section{border-bottom:1px solid var(--border);padding:14px 14px 16px}.props-section:last-child{border-bottom:none}.props-section-title{font-size:11px;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.08em;margin-bottom:12px}.props-row{display:flex;gap:8px;align-items:center;margin-bottom:12px}.props-row:last-child{margin-bottom:0}.props-row.stacked{display:grid;gap:6px}.props-row.stacked .props-label{width:auto}.props-label{width:70px;font-size:12px;color:var(--muted);flex-shrink:0}.props-grid-2{display:grid;grid-template-columns:1fr 1fr;gap:8px}.props-grid-2.compact{margin-bottom:12px}.props-grid-2.compact label{display:grid;gap:6px;color:var(--muted);font-size:11px;font-weight:700}.props-grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.props-grid-3{display:grid;grid-template-columns:1fr 1fr 72px;gap:8px;margin-bottom:12px}.color-input{display:flex;align-items:center;gap:6px;background:var(--surface-3);border:1px solid var(--border);border-radius:var(--radius-sm);padding:4px;flex:1;min-width:0}.color-input input[type=color]{width:28px;height:24px;border:none;background:transparent;padding:0;cursor:pointer}.color-input input[type=text]{flex:1;border:none;background:transparent;padding:4px 6px;font-family:var(--font-mono);font-size:12px;text-transform:uppercase}.props-textarea{resize:vertical;min-height:70px;font-family:var(--font-mono);font-size:12px}.props-textarea.mini{min-height:52px}.props-textarea.codepen-code{min-height:96px}.props-textarea.full-code{min-height:180px}.props-mode-group{margin-bottom:12px}.props-mode-group button{gap:5px;min-height:28px}.props-mode-group+.props-row{margin-top:2px}.props-hint{margin-top:6px;color:var(--warning);font-size:11px;line-height:1.4}.gradient-presets{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin:10px 0 14px}.gradient-presets button{height:28px;border:1px solid var(--border);border-radius:6px}.shadow-builder{display:grid;gap:10px;margin-bottom:12px}.shadow-builder label{display:grid;grid-template-columns:78px 1fr;align-items:center;gap:8px;color:var(--muted);font-size:11px;font-weight:700}.shadow-builder input[type=range]{padding:0}.btn-group{display:flex;gap:0;background:var(--surface-3);border:1px solid var(--border);border-radius:var(--radius-sm);padding:2px}.btn-group button{flex:1;padding:5px;border-radius:4px;display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:12px;transition:background .15s ease,color .15s ease}.btn-group button.active{background:var(--accent);color:#fff}.btn-group button:hover:not(.active){color:var(--text)}.action-row{display:grid;grid-template-columns:1fr 1fr;gap:6px;padding:14px;border-bottom:1px solid var(--border)}.action-row.full{grid-template-columns:1fr}.action-btn{padding:8px;border-radius:var(--radius-sm);background:var(--surface-2);border:1px solid var(--border);font-size:12px;font-weight:500;color:var(--text);display:inline-flex;align-items:center;justify-content:center;gap:6px;transition:background .15s ease,border-color .15s ease}.action-btn.full-width{width:100%;margin-bottom:8px}.action-btn:hover{background:var(--surface-3)}.action-btn:disabled{opacity:.45;cursor:not-allowed}.action-btn.danger:hover{background:#f06d6d1f;border-color:var(--danger);color:var(--danger)}.props-empty{padding:40px 20px;text-align:center;color:var(--muted);font-size:13px;line-height:1.55}.props-empty-icon{color:var(--border-strong);margin-bottom:12px}.welcome{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;padding:40px;background:var(--bg)}.welcome-card{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:48px;max-width:560px;width:100%;text-align:center;box-shadow:var(--shadow)}.welcome-logo{width:64px;height:64px;background:linear-gradient(135deg,var(--accent),#8a5fea);border-radius:16px;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:22px;margin:0 auto 24px;box-shadow:0 12px 32px #6d71f066}.welcome h1{font-size:28px;margin-bottom:8px;letter-spacing:-.02em}.welcome p{color:var(--muted);margin-bottom:32px;font-size:15px;line-height:1.55}.welcome-drop{border:2px dashed var(--border-strong);border-radius:var(--radius);padding:40px 20px;cursor:pointer;transition:border-color .15s ease,background .15s ease}.welcome-drop:hover,.welcome-drop.dragging{border-color:var(--accent);background:var(--accent-soft)}.welcome-drop-icon{color:var(--accent);margin-bottom:12px}.welcome-drop-text{font-weight:500;margin-bottom:4px}.welcome-drop-hint{font-size:12px;color:var(--muted)}.welcome-code{display:grid;gap:10px;margin-top:16px}.welcome-code textarea{min-height:120px;font-family:var(--font-mono);font-size:12px;resize:vertical}.welcome-actions{display:flex;gap:8px;justify-content:center;margin-top:16px}.notice{position:fixed;bottom:20px;left:50%;transform:translate(-50%);background:var(--surface);border:1px solid var(--border-strong);padding:10px 16px;border-radius:var(--radius);font-size:13px;z-index:1000;box-shadow:var(--shadow);display:flex;align-items:center;gap:8px;animation:noticeIn .2s ease}.code-panel{position:fixed;top:52px;right:300px;bottom:0;left:280px;z-index:900;display:grid;grid-template-rows:46px 1fr;background:var(--surface);border-left:1px solid var(--border);border-right:1px solid var(--border);box-shadow:var(--shadow)}.code-panel-head{display:flex;align-items:center;justify-content:space-between;padding:0 12px;border-bottom:1px solid var(--border);color:var(--muted);font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase}.code-editor{width:100%;height:100%;resize:none;border:0;border-radius:0;background:#0b0c10;color:#e6e8ee;font-family:var(--font-mono);font-size:12px;line-height:1.55;padding:16px}@keyframes noticeIn{0%{opacity:0;transform:translate(-50%,10px)}to{opacity:1;transform:translate(-50%)}}@media (max-width: 1100px){.workspace{grid-template-columns:240px 1fr 280px}}@media (max-width: 900px){html,body,#root{overflow:auto}.app{min-height:100vh;height:auto;grid-template-rows:auto 1fr}.topbar{min-height:52px;flex-wrap:wrap;padding:8px;gap:8px}.topbar-title{display:none}.topbar-section{gap:6px}.topbar-section:nth-child(2){order:3;width:100%;justify-content:center}.btn{padding:7px 9px}.workspace{grid-template-columns:minmax(135px,42%) minmax(180px,58%);grid-template-rows:minmax(54vh,1fr) 42vh;min-height:calc(100vh - 96px);overflow:visible}.canvas-area{min-height:54vh}.canvas-area{grid-column:1 / 3}.canvas-toolbar{justify-content:flex-start;overflow-x:auto;padding:8px}.canvas-frame-wrap{padding:12px 18px 18px 12px;align-items:stretch}.canvas-frame{height:calc(54vh - 48px);min-height:320px;border-radius:6px}.canvas-frame.tablet,.canvas-frame.mobile{width:min(100%,380px)}.sidebar-left,.sidebar-right{display:flex;min-height:0;border-top:1px solid var(--border)}.sidebar-left{grid-row:2;grid-column:1;width:auto;border-right:1px solid var(--border)}.sidebar-right{grid-row:2;grid-column:2;width:auto}.sidebar-body{padding:8px}.code-panel{top:96px;right:0;bottom:0;left:0}.action-row{padding:8px;grid-template-columns:1fr}.props-section{padding:10px}.props-row{align-items:flex-start;flex-direction:column;gap:5px}.props-label{width:auto}.lib-grid{grid-template-columns:1fr}.lib-item{padding:10px 6px}}