:root{--gossamer-white:#fafafa;--gossamer-light-gray:#cdcdcf;--gossamer-mid-gray:#939599;--gossamer-cyan:#2bcfce;--gossamer-orange:#ec4d25;--bg-app:#fafafa;--bg-header:#fff;--bg-panel:#fafafa;--bg-viewport:#18191e;--bg-card:#fff;--border-color:#cdcdcf;--border-focus:#2bcfce;--primary:#2bcfce;--primary-glow:#2bcfce40;--primary-hover:#21b6b5;--accent-orange:#ec4d25;--accent-orange-glow:#ec4d2540;--accent-orange-hover:#d73c16;--text-main:#1c1d21;--text-muted:#939599;--text-bright:#000;--status-green:#2bcfce;--status-yellow:#ec4d25;--font-sans:"Outfit", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--font-mono:"JetBrains Mono", SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace}*{box-sizing:border-box;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;margin:0;padding:0}body,html{background-color:var(--bg-app);width:100%;height:100%;color:var(--text-main);font-family:var(--font-sans);overflow:hidden}.app-container{flex-direction:column;width:100vw;height:100vh;display:flex}.app-header{background-color:var(--bg-header);border-bottom:1px solid var(--border-color);z-index:10;justify-content:space-between;align-items:center;height:64px;padding:0 24px;display:flex;box-shadow:0 2px 8px #00000008}.header-logo{align-items:center;gap:12px;display:flex}.logo-icon{background-color:var(--gossamer-orange);color:#fff;width:36px;height:36px;box-shadow:0 4px 12px var(--accent-orange-glow);border-radius:8px;justify-content:center;align-items:center;font-size:1.1rem;display:flex}.logo-text{letter-spacing:-.5px;align-items:center;gap:4px;font-size:1.4rem;font-weight:700;display:flex}.logo-primary{color:var(--text-bright)}.logo-secondary{color:var(--gossamer-cyan)}.logo-badge{font-family:var(--font-mono);color:var(--gossamer-orange);letter-spacing:.5px;background-color:#ec4d2514;border:1px solid #ec4d2540;border-radius:4px;margin-left:6px;padding:2px 7px;font-size:.65rem;font-weight:600}.header-actions{align-items:center;gap:12px;display:flex}.main-layout{flex:1;display:flex;position:relative;overflow:hidden}.control-panel{background-color:var(--bg-panel);border-right:1px solid var(--border-color);flex-direction:column;gap:24px;width:320px;padding:20px;display:flex;overflow-y:auto}.glass{background:#fafafa}.panel-section{flex-direction:column;gap:12px;display:flex}.section-header-row{justify-content:space-between;align-items:center;display:flex}.section-title{text-transform:uppercase;letter-spacing:1px;color:var(--gossamer-mid-gray);align-items:center;gap:8px;font-size:.85rem;font-weight:700;display:flex}.section-title i{color:var(--gossamer-cyan)}.file-details-card{background-color:var(--bg-card);border:1px solid var(--border-color);border-radius:10px;flex-direction:column;gap:8px;padding:14px;display:flex;box-shadow:0 1px 3px #0000000a}.info-row{justify-content:space-between;align-items:center;font-size:.85rem;display:flex}.info-label{color:var(--text-muted)}.info-value{color:var(--text-main);font-weight:600}.text-truncate{white-space:nowrap;text-overflow:ellipsis;max-width:170px;overflow:hidden}.btn{font-family:var(--font-sans);cursor:pointer;border:none;border-radius:8px;justify-content:center;align-items:center;gap:8px;padding:10px 18px;font-size:.9rem;font-weight:600;transition:all .2s cubic-bezier(.4,0,.2,1);display:inline-flex}.btn-primary{background-color:var(--gossamer-orange);color:#fff;box-shadow:0 4px 12px var(--accent-orange-glow)}.btn-primary:hover{background-color:var(--accent-orange-hover);box-shadow:0 6px 16px var(--accent-orange-glow);transform:translateY(-1px)}.btn-secondary{border:1px solid var(--border-color);color:var(--text-main);background-color:#fff;box-shadow:0 1px 2px #0000000a}.btn-secondary:hover{border-color:var(--gossamer-mid-gray);color:var(--text-bright);background-color:#fafafa}.btn-full-width{width:100%}.btn-text{color:var(--gossamer-cyan);cursor:pointer;text-transform:uppercase;letter-spacing:.5px;background:0 0;border:none;padding:4px;font-size:.75rem;font-weight:700;transition:color .15s}.btn-text:hover{color:#1ca8a7;text-decoration:underline}.layer-list-container{border:1px solid var(--border-color);background-color:#fff;border-radius:8px;flex-direction:column;max-height:220px;padding:4px;display:flex;overflow-y:auto}.layer-item{border-radius:6px;justify-content:space-between;align-items:center;padding:8px 12px;transition:background-color .15s;display:flex}.layer-item:hover{background-color:#fafafa}.layer-checkbox-label{cursor:pointer;-webkit-user-select:none;user-select:none;color:var(--text-main);flex-grow:1;align-items:center;gap:10px;font-size:.85rem;font-weight:500;display:flex}.layer-color-dot{border:1px solid #00000026;border-radius:50%;width:10px;height:10px;display:inline-block}.layer-count-badge{font-family:var(--font-mono);color:var(--text-muted);border:1px solid var(--gossamer-light-gray);background-color:#fafafa;border-radius:10px;padding:1px 6px;font-size:.7rem}.no-layers-placeholder{color:var(--text-muted);text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:8px;padding:30px 10px;font-size:.85rem;display:flex}.no-layers-placeholder i{color:var(--gossamer-mid-gray);opacity:.8;font-size:1.3rem}input[type=checkbox]{accent-color:var(--gossamer-cyan);cursor:pointer}.control-group{flex-direction:column;gap:6px;display:flex}.control-label{color:var(--text-muted);font-size:.8rem;font-weight:600}.select-wrapper{position:relative}.form-select{border:1px solid var(--border-color);width:100%;color:var(--text-main);font-size:.85rem;font-family:var(--font-sans);cursor:pointer;appearance:none;background-color:#fff;border-radius:8px;outline:none;padding:10px 14px;font-weight:500;transition:border-color .2s,box-shadow .2s;box-shadow:0 1px 2px #00000008}.form-select:focus{border-color:var(--gossamer-cyan);box-shadow:0 0 0 3px var(--primary-glow)}.select-wrapper:after{content:"";pointer-events:none;color:var(--gossamer-mid-gray);font-family:FontAwesome;font-size:.85rem;position:absolute;top:50%;right:14px;transform:translateY(-50%)}.switch-row{justify-content:space-between;align-items:center;padding:4px 0;display:flex}.toggle-switch{width:38px;height:22px;display:inline-block;position:relative}.toggle-switch input{opacity:0;width:0;height:0}.toggle-slider{cursor:pointer;background-color:var(--gossamer-light-gray);border-radius:34px;transition:all .2s cubic-bezier(.4,0,.2,1);position:absolute;inset:0}.toggle-slider:before{content:"";background-color:#fff;border-radius:50%;width:16px;height:16px;transition:all .2s cubic-bezier(.4,0,.2,1);position:absolute;bottom:3px;left:3px;box-shadow:0 1px 3px #00000026}input:checked+.toggle-slider{background-color:var(--gossamer-cyan)}input:checked+.toggle-slider:before{transform:translate(16px)}.viewport-stats{grid-template-columns:1fr 1fr;gap:10px;display:grid}.stat-box{border:1px solid var(--border-color);background-color:#fff;border-radius:8px;flex-direction:column;gap:2px;padding:8px 10px;display:flex;box-shadow:0 1px 2px #00000008}.stat-lbl{color:var(--gossamer-mid-gray);text-transform:uppercase;font-size:.7rem;font-weight:700}.stat-val{font-family:var(--font-mono);color:var(--text-main);font-size:.8rem;font-weight:600}.export-buttons-grid{grid-template-columns:1fr 1fr;gap:10px;display:grid}.btn-export{border:1px solid var(--border-color);color:var(--text-main);background-color:#fff;border-radius:8px;flex-direction:column;gap:6px;height:70px;padding:12px 10px;font-size:.8rem;font-weight:600;box-shadow:0 1px 3px #0000000a}.btn-export i{font-size:1.2rem}.btn-export:disabled{opacity:.4;cursor:not-allowed}.btn-export:not(:disabled):hover{transform:translateY(-2px);box-shadow:0 4px 12px #00000014}.btn-png:not(:disabled):hover{border-color:var(--gossamer-cyan);color:var(--gossamer-cyan);box-shadow:0 4px 12px var(--primary-glow)}.btn-pdf:not(:disabled):hover{border-color:var(--gossamer-orange);color:var(--gossamer-orange);box-shadow:0 4px 12px var(--accent-orange-glow)}.viewport-container{background-color:var(--bg-viewport);cursor:grab;flex:1;position:relative;overflow:hidden}.viewport-container:active{cursor:grabbing}#cad-canvas{width:100%;height:100%;display:block}.drop-prompt{border:2px dashed var(--gossamer-cyan);z-index:5;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background-color:#fafafaf2;border-radius:12px;justify-content:center;align-items:center;transition:all .3s;display:flex;position:absolute;inset:20px}.drop-prompt.dragover{border-color:var(--gossamer-orange);box-shadow:inset 0 0 40px var(--accent-orange-glow);background-color:#ec4d250d}.prompt-content{text-align:center;flex-direction:column;align-items:center;gap:16px;max-width:440px;padding:40px;display:flex}.prompt-icon{color:var(--gossamer-orange);opacity:.9;text-shadow:0 4px 16px var(--accent-orange-glow);font-size:3.5rem;animation:3s ease-in-out infinite bounce}.prompt-content h3{color:var(--text-bright);font-size:1.5rem;font-weight:700}.prompt-content p{color:var(--gossamer-mid-gray);font-size:.9rem;line-height:1.5}.mt-4{margin-top:16px}.loading-overlay{z-index:8;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background-color:#fafafaf0;flex-direction:column;justify-content:center;align-items:center;gap:20px;display:none;position:absolute;inset:0}.spinner-container{width:80px;height:80px;position:relative}.spinner{border:4px solid var(--gossamer-light-gray);border-left-color:var(--gossamer-cyan);border-radius:50%;width:100%;height:100%;animation:1s linear infinite spin}.spinner-logo{color:var(--gossamer-orange);font-size:1.5rem;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.loading-text{color:var(--text-main);letter-spacing:.5px;font-size:.95rem;font-weight:600}.viewport-overlay-controls{z-index:4;flex-direction:column;gap:8px;display:flex;position:absolute;bottom:24px;right:24px}.ctrl-btn{border:1px solid var(--border-color);width:40px;height:40px;color:var(--text-main);cursor:pointer;background-color:#fff;border-radius:8px;justify-content:center;align-items:center;font-size:1rem;transition:all .2s;display:flex;box-shadow:0 2px 8px #00000014}.ctrl-btn:hover{background-color:var(--gossamer-cyan);color:#fff;border-color:var(--gossamer-cyan);box-shadow:0 4px 12px var(--primary-glow);transform:scale(1.05)}.app-footer{border-top:1px solid var(--border-color);height:32px;color:var(--gossamer-mid-gray);background-color:#fff;justify-content:space-between;align-items:center;padding:0 20px;font-size:.75rem;font-weight:500;display:flex}.footer-status{align-items:center;gap:8px;display:flex}.status-dot{border-radius:50%;width:8px;height:8px;display:inline-block}.status-dot.green{background-color:var(--status-green);box-shadow:0 0 8px var(--primary-glow)}.status-dot.yellow{background-color:var(--status-yellow);box-shadow:0 0 8px var(--accent-orange-glow)}.footer-coords{font-family:var(--font-mono);color:var(--gossamer-mid-gray)}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-8px)}}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:#00000005}::-webkit-scrollbar-thumb{background:var(--gossamer-light-gray);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--gossamer-mid-gray)}@media (width<=768px){.main-layout{flex-direction:column}.control-panel{border-right:none;border-bottom:1px solid var(--border-color);width:100%;height:300px}.export-buttons-grid{grid-template-columns:1fr 1fr}}