:root{--primary-color:#64c8ff;--bg-color:#0f172a;--surface-color:#1e293bb3;--text-main:#f8fafc;--text-dim:#94a3b8;--ruler-color:#f59e0b}body.dark-theme{background-color:var(--bg-color);color:var(--text-main);flex-direction:column;height:100vh;margin:0;display:flex;overflow:hidden}.experiment-container{z-index:10;flex-direction:column;flex:1;height:calc(100vh - 64px);display:flex;position:relative}.scene-header{pointer-events:none;z-index:20;justify-content:space-between;align-items:flex-start;padding:2rem;display:flex;position:absolute;top:64px;left:0;right:0}.title-area h1{text-shadow:0 2px 10px #00000080;background:linear-gradient(90deg, #fff, var(--primary-color));-webkit-text-fill-color:transparent;-webkit-background-clip:text;margin:0 0 .5rem;font-family:Space Grotesk,sans-serif;font-size:2.5rem}.title-area p{color:var(--text-dim);text-shadow:0 1px 4px #000c;max-width:500px;margin:0;font-size:1.1rem;line-height:1.5}.stats-panel{background:var(--surface-color);-webkit-backdrop-filter:blur(12px);border:1px solid #ffffff1a;border-radius:16px;gap:1rem;padding:1rem;display:flex}.stat-box{flex-direction:column;align-items:center;min-width:100px;display:flex}.stat-label{color:var(--text-dim);text-transform:uppercase;letter-spacing:1px;font-size:.8rem}.stat-value{color:var(--primary-color);font-family:Space Grotesk,monospace;font-size:1.8rem;font-weight:700}.mission-status{border:1px solid var(--primary-color);background:#64c8ff33;border-radius:30px;padding:.75rem 1.5rem;font-weight:600;transition:all .3s;position:absolute;top:2rem;left:50%;transform:translate(-50%);box-shadow:0 0 20px #64c8ff33}.mission-status.success{color:#10b981;background:#10b98133;border-color:#10b981}.canvas-container{flex:1;width:100%;position:relative}#sim-canvas{touch-action:none;width:100%;height:100%;display:block}.overlay-tooltip{color:#1e293b;pointer-events:none;z-index:30;background:#ffffffe6;border-radius:20px;align-items:center;gap:8px;padding:.75rem 1.25rem;font-size:.95rem;font-weight:600;animation:2s ease-in-out infinite float;display:flex;position:absolute;transform:translate(-50%,-50%);box-shadow:0 10px 25px #0000004d}.pointer-hand{font-size:1.5rem;animation:1.5s infinite tap}@keyframes float{0%,to{transform:translate(-50%,-50%)}50%{transform:translate(-50%,-60%)}}@keyframes tap{0%,50%,to{transform:scale(1)translateY(0)}25%{transform:scale(.9)translateY(4px)}}.measuring-tape-container{pointer-events:none;width:100%;height:100%;position:absolute;top:0;left:0}.measuring-tape{z-index:40;align-items:center;display:flex;position:absolute;top:50%;left:20%}.tape-line{border-top:2px solid var(--ruler-color);border-bottom:2px solid var(--ruler-color);background:#f59e0b4d;justify-content:center;align-items:center;height:20px;display:flex;position:relative}.tape-ticks{background-image:repeating-linear-gradient(90deg, var(--ruler-color) 0, var(--ruler-color) 2px, transparent 2px, transparent 20px);width:100%;height:6px;position:absolute;bottom:0;left:0}.tape-value{background:var(--ruler-color);color:#000;border-radius:4px;padding:2px 8px;font-size:.85rem;font-weight:700;position:absolute;top:-30px}.tape-handle{background:var(--surface-color);border:2px solid var(--ruler-color);width:40px;height:40px;color:var(--ruler-color);cursor:grab;pointer-events:auto;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);border-radius:50%;justify-content:center;align-items:center;transition:transform .1s;display:flex;position:absolute;top:50%;transform:translate(-50%,-50%);box-shadow:0 4px 12px #00000080}.tape-handle:active{cursor:grabbing;transform:translate(-50%,-50%)scale(1.1)}.left-handle{left:0}.right-handle{left:300px}.toast-message{color:#fff;opacity:0;visibility:hidden;z-index:100;background:linear-gradient(135deg,#10b981,#059669);border-radius:30px;padding:1rem 2rem;font-size:1.1rem;font-weight:600;transition:all .4s cubic-bezier(.175,.885,.32,1.275);position:absolute;bottom:120px;left:50%;transform:translate(-50%)translateY(20px);box-shadow:0 10px 25px #10b98166}.toast-message.show{opacity:1;visibility:visible;transform:translate(-50%)translateY(0)}.bottom-tab-nav{-webkit-backdrop-filter:blur(20px);z-index:50;background:#0f172ae6;border-top:1px solid #ffffff0d;justify-content:center;gap:1rem;padding:1rem 2rem;display:flex}.tab-btn{color:var(--text-dim);cursor:pointer;background:0 0;border:none;border-radius:16px;flex-direction:column;align-items:center;gap:.5rem;padding:.75rem 1.5rem;transition:all .3s;display:flex;position:relative;overflow:hidden}.tab-btn:before{content:"";background:var(--primary-color);opacity:0;z-index:-1;transition:opacity .3s;position:absolute;inset:0}.tab-btn:hover{color:#fff;background:#ffffff0d}.tab-btn.active{color:var(--primary-color);background:#64c8ff1a;box-shadow:inset 0 0 0 1px #64c8ff33}.tab-icon{font-size:1.5rem;transition:transform .3s cubic-bezier(.175,.885,.32,1.275)}.tab-label{font-size:.9rem;font-weight:600}.tab-btn.active .tab-icon{transform:scale(1.2)translateY(-2px)}.bg-blob{filter:blur(80px);opacity:.15;z-index:0;pointer-events:none;border-radius:50%;position:absolute}.blob-1{background:#64c8ff;width:60vw;height:60vw;animation:30s linear infinite rotate;top:-10vw;left:-10vw}.blob-2{background:#c471ed;width:50vw;height:50vw;animation:40s linear infinite reverse rotate;bottom:-5vw;right:-10vw}@keyframes rotate{0%{transform:rotate(0)}to{transform:rotate(360deg)}}