*{margin:0;padding:0;box-sizing:border-box}:root{--bg-primary: #1a1a2e;--bg-secondary: #16213e;--bg-panel: #0f3460;--text-primary: #e0e0e0;--text-secondary: #a0a0b0;--accent: #00d4ff;--accent-dim: #00a4c4;--benefit: #27AE60;--penalty: #C0392B;--border: #ffffff15;--panel-radius: 8px;--panel-shadow: 0 4px 20px rgba(0, 0, 0, .4)}html,body,#root{width:100%;height:100%;overflow:hidden;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg-primary);color:var(--text-primary)}.app{position:relative;width:100%;height:100%}.map-container{position:absolute;top:0;right:0;bottom:0;left:0}.top-bar{position:absolute;top:16px;left:50%;transform:translate(-50%);z-index:10;display:flex;gap:8px;align-items:center}.top-bar button{padding:8px 20px;border:1px solid var(--border);border-radius:6px;background:var(--bg-secondary);color:var(--text-primary);font-size:14px;font-weight:500;cursor:pointer;transition:all .2s;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.top-bar button:hover{background:var(--bg-panel);border-color:var(--accent)}.top-bar button.active{background:var(--accent);color:#000;border-color:var(--accent)}.top-bar button:disabled{opacity:.4;cursor:not-allowed}.connection-panel{position:absolute;top:70px;right:16px;z-index:10;width:320px;background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--panel-radius);padding:16px;box-shadow:var(--panel-shadow);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.connection-panel h3{font-size:14px;font-weight:600;margin-bottom:12px;color:var(--accent)}.connection-panel .edge-group{margin-bottom:12px}.connection-panel .line-label{font-size:11px;text-transform:uppercase;letter-spacing:.5px;margin-bottom:4px;font-weight:600}.connection-panel .edge-item{display:flex;align-items:center;gap:8px;padding:6px 8px;border-radius:4px;cursor:pointer;transition:background .15s}.connection-panel .edge-item:hover{background:#ffffff08}.connection-panel .edge-item input[type=checkbox]{accent-color:var(--accent)}.connection-panel .edge-item .station-pair{font-size:12px;flex:1}.connection-panel .edge-item .distance{font-size:11px;color:var(--text-secondary)}.connection-panel .actions{display:flex;gap:8px;margin-top:12px}.connection-panel .actions button{flex:1;padding:8px;border:1px solid var(--border);border-radius:4px;font-size:13px;cursor:pointer;transition:all .2s}.connection-panel .actions .commit-btn{background:var(--accent);color:#000;border-color:var(--accent);font-weight:600}.connection-panel .actions .commit-btn:disabled{opacity:.4;cursor:not-allowed}.connection-panel .actions .cancel-btn{background:transparent;color:var(--text-primary)}.metrics-overlay{position:absolute;bottom:24px;left:16px;z-index:10;background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--panel-radius);padding:16px;min-width:240px;box-shadow:var(--panel-shadow);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.metrics-overlay h3{font-size:12px;text-transform:uppercase;letter-spacing:.5px;color:var(--accent);margin-bottom:10px}.metrics-overlay .metric-row{display:flex;justify-content:space-between;align-items:center;padding:3px 0;font-size:13px}.metrics-overlay .metric-row .label{color:var(--text-secondary)}.metrics-overlay .metric-row .value{font-weight:600;font-variant-numeric:tabular-nums}.metrics-overlay .metric-row .value.positive{color:var(--benefit)}.metrics-overlay .metric-row .value.negative{color:var(--penalty)}.legend{position:absolute;bottom:24px;right:16px;z-index:10;background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--panel-radius);padding:12px 16px;box-shadow:var(--panel-shadow);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.legend h4{font-size:11px;text-transform:uppercase;letter-spacing:.5px;color:var(--text-secondary);margin-bottom:8px}.legend .gradient-bar{width:200px;height:12px;border-radius:3px;background:linear-gradient(to right,var(--benefit),var(--bg-secondary),var(--penalty))}.legend .labels{display:flex;justify-content:space-between;margin-top:4px;font-size:10px;color:var(--text-secondary)}.sidebar{position:absolute;top:70px;left:16px;z-index:10;width:280px;max-height:calc(100vh - 200px);background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--panel-radius);box-shadow:var(--panel-shadow);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);overflow:hidden;display:flex;flex-direction:column}.sidebar .sidebar-header{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;border-bottom:1px solid var(--border)}.sidebar .sidebar-header h3{font-size:13px;font-weight:600;color:var(--accent)}.sidebar .sidebar-header button{background:none;border:none;color:var(--text-secondary);cursor:pointer;font-size:12px}.sidebar .sidebar-header button:hover{color:var(--penalty)}.sidebar .scenario-list{flex:1;overflow-y:auto;padding:8px}.sidebar .scenario-item{display:flex;align-items:center;gap:8px;padding:8px;border-radius:4px;cursor:pointer;transition:background .15s;border:1px solid transparent}.sidebar .scenario-item:hover{background:#ffffff08}.sidebar .scenario-item.active{border-color:var(--accent);background:#00d4ff10}.sidebar .scenario-item .compare-check{accent-color:var(--accent)}.sidebar .scenario-item .scenario-info{flex:1;min-width:0}.sidebar .scenario-item .scenario-name{font-size:13px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sidebar .scenario-item .scenario-meta{font-size:11px;color:var(--text-secondary)}.sidebar .scenario-item .impact-badge{font-size:11px;font-weight:600;padding:2px 6px;border-radius:3px}.sidebar .scenario-item .impact-badge.positive{background:#27ae6020;color:var(--benefit)}.sidebar .scenario-item .impact-badge.negative{background:#c0392b20;color:var(--penalty)}.sidebar .scenario-item .delete-btn{background:none;border:none;color:var(--text-secondary);cursor:pointer;font-size:14px;padding:2px 4px;opacity:0;transition:opacity .15s}.sidebar .scenario-item:hover .delete-btn{opacity:1}.sidebar .scenario-item .delete-btn:hover{color:var(--penalty)}.sidebar .sidebar-actions{display:flex;gap:6px;padding:8px 12px;border-top:1px solid var(--border)}.sidebar .sidebar-actions button{flex:1;padding:6px;border:1px solid var(--border);border-radius:4px;background:transparent;color:var(--text-primary);font-size:12px;cursor:pointer;transition:all .15s}.sidebar .sidebar-actions button:hover{border-color:var(--accent)}.sidebar .sidebar-actions button:disabled{opacity:.3;cursor:not-allowed}.comparison-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:100;display:flex;align-items:center;justify-content:center;background:#000000b3;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.comparison-table{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--panel-radius);padding:24px;max-width:90vw;max-height:80vh;overflow:auto;box-shadow:var(--panel-shadow)}.comparison-table h2{font-size:16px;margin-bottom:16px;color:var(--accent)}.comparison-table table{border-collapse:collapse;width:100%}.comparison-table th,.comparison-table td{padding:8px 14px;text-align:right;font-size:13px;border-bottom:1px solid var(--border)}.comparison-table th{text-align:center;font-weight:600;cursor:pointer}.comparison-table th:hover{color:var(--accent)}.comparison-table th .scenario-loc{font-size:10px;color:var(--text-secondary);font-weight:400}.comparison-table td:first-child{text-align:left;color:var(--text-secondary);font-weight:500}.comparison-table td.best{color:var(--benefit);font-weight:600}.comparison-table td.worst{color:var(--penalty)}.comparison-table .close-btn{position:absolute;top:16px;right:16px;background:none;border:none;color:var(--text-secondary);font-size:20px;cursor:pointer}.toast{position:absolute;top:70px;left:50%;transform:translate(-50%);z-index:20;background:var(--penalty);color:#fff;padding:10px 20px;border-radius:6px;font-size:13px;font-weight:500;animation:fadeInOut 2.5s ease forwards}@keyframes fadeInOut{0%{opacity:0;transform:translate(-50%) translateY(-10px)}15%{opacity:1;transform:translate(-50%) translateY(0)}75%{opacity:1}to{opacity:0}}.loading-screen{position:fixed;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:center;background:var(--bg-primary);z-index:1000;gap:16px}.loading-screen .spinner{width:40px;height:40px;border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.loading-screen p{color:var(--text-secondary);font-size:14px}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#ffffff20;border-radius:3px}