:root{--bg-primary: #0a0a0f;--bg-secondary: #12121a;--bg-card: rgba(20, 20, 32, .6);--border-subtle: #1e1e2e;--border-active: #4040ff;--text-primary: #e8e8f0;--text-secondary: #a0a0b8;--text-muted: #606078;--accent-blue: #4040ff;--accent-blue-light: #8090ff;--accent-gold: #f5c842;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px}.app-container{display:flex;flex-direction:column;width:100vw;height:100vh;background:var(--bg-primary);color:var(--text-primary);overflow:hidden}.app-header{display:flex;align-items:center;justify-content:space-between;height:48px;padding:0 20px;border-bottom:1px solid var(--border-subtle);background:#0a0a0ff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);flex-shrink:0}.header-left{display:flex;align-items:baseline;gap:10px}.header-logo{font-size:16px;font-weight:700;color:var(--text-primary)}.header-subtitle{font-size:12px;color:var(--text-muted)}.header-center{display:flex;align-items:center}.header-badge{padding:3px 10px;border-radius:12px;background:#4040ff1f;color:var(--accent-blue-light);font-size:12px;font-weight:600;border:1px solid rgba(64,64,255,.2)}.header-right{display:flex;align-items:center}.header-stat{font-size:13px;color:var(--text-secondary)}.app-main{display:flex;flex:1;overflow:hidden}.canvas-section{flex:3;display:flex;align-items:center;justify-content:center;background:radial-gradient(ellipse at center,rgba(30,30,60,.3) 0%,var(--bg-primary) 70%);position:relative;min-width:0}.settings-section{flex:2;border-left:1px solid var(--border-subtle);background:var(--bg-secondary);overflow-y:auto;min-width:320px;max-width:420px}.app-footer{display:flex;align-items:center;gap:12px;height:56px;padding:0 20px;border-top:1px solid var(--border-subtle);background:#0a0a0ff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);flex-shrink:0}.footer-section{display:flex;align-items:center;gap:6px}.footer-label{font-size:12px;color:var(--text-muted);margin-right:4px;white-space:nowrap}.footer-divider{width:1px;height:24px;background:var(--border-subtle)}.scene-btn{display:flex;flex-direction:column;align-items:center;gap:2px;padding:6px 10px;border-radius:var(--radius-md);border:1px solid var(--border-subtle);background:var(--bg-card);color:var(--text-secondary);cursor:pointer;transition:all .2s ease;min-width:52px}.scene-btn:hover{border-color:var(--border-active);background:#4040ff1a;color:var(--accent-blue-light);transform:translateY(-1px)}.scene-btn:active{transform:translateY(0)}.scene-btn-icon{font-size:18px}.scene-btn-label{font-size:10px;font-weight:600}.action-btn{padding:6px 14px;border-radius:var(--radius-sm);border:1px solid var(--border-subtle);background:var(--bg-card);color:var(--text-secondary);cursor:pointer;font-size:12px;font-weight:600;transition:all .2s ease;white-space:nowrap}.action-btn:hover{border-color:var(--accent-gold);background:#f5c8421a;color:var(--accent-gold)}.action-btn:active{transform:scale(.96)}.toast{position:fixed;top:60px;left:50%;transform:translate(-50%);padding:10px 24px;border-radius:var(--radius-md);background:#4040ffe6;color:#fff;font-size:13px;font-weight:600;z-index:1000;animation:toast-in .3s ease,toast-out .3s ease 1.7s forwards;pointer-events:none}@keyframes toast-in{0%{opacity:0;transform:translate(-50%) translateY(-10px)}to{opacity:1;transform:translate(-50%) translateY(0)}}@keyframes toast-out{0%{opacity:1}to{opacity:0}}.settings-section::-webkit-scrollbar{width:4px}.settings-section::-webkit-scrollbar-track{background:transparent}.settings-section::-webkit-scrollbar-thumb{background:var(--border-subtle);border-radius:2px}.settings-section::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}@media (max-width: 768px){.app-main{flex-direction:column}.canvas-section{flex:1;min-height:50vh}.settings-section{max-width:none;border-left:none;border-top:1px solid var(--border-subtle)}}