:root{--primary: #007bff;--primary-hover: #0056b3;--secondary: #0d2c54;--bg-main: #ffffff;--bg-panel: #f8fafc;--border-light: #e2e8f0;--text-main: #1e293b;--text-muted: #64748b;--signal-green: #10b981;--signal-yellow: #f59e0b;--signal-red: #ef4444;--font-hud: "Inter", system-ui, -apple-system, sans-serif;--font-ui: "Inter", system-ui, -apple-system, sans-serif;--shadow-sm: none;--shadow-md: none;--shadow-lg: none}*{box-sizing:border-box;margin:0;padding:0;user-select:none;-webkit-user-select:none}body,html{width:100%;height:100%;overflow:hidden;background-color:var(--bg-main);font-family:var(--font-ui);color:var(--text-main)}#app{position:relative;width:100vw;height:100vh;overflow:hidden}#game-canvas-container{position:absolute;top:0;left:0;width:100%;height:100%;z-index:1}#game-canvas{width:100%;height:100%;display:block}.hidden{display:none!important}.icon-button{background:var(--bg-main);border:1px solid var(--border-light);color:var(--text-main);border-radius:8px;padding:8px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;transition:all .2s ease}.icon-button:hover{background:var(--bg-panel);border-color:var(--primary);color:var(--primary)}.view-screen{position:absolute;top:0;left:0;width:100%;height:100%;z-index:100;pointer-events:auto;display:flex;align-items:center;justify-content:center;background:#0f172a40;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);padding:16px;overflow-y:auto}.menu-hero-card{max-width:580px;width:100%;margin:auto;background:#fffffff0;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border:1px solid rgba(226,232,240,.8);box-shadow:0 20px 30px -10px #00000040;border-radius:12px;padding:24px 20px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:14px;max-height:94vh;overflow-y:auto}.brand-badge{font-family:var(--font-hud);font-size:.75rem;letter-spacing:2px;color:var(--primary);background:#fff3ed;border:1px solid var(--primary);padding:6px 16px;border-radius:20px;font-weight:700}.game-title{font-family:var(--font-hud);font-size:3rem;font-weight:900;letter-spacing:1px;color:var(--secondary)}.game-subtitle{font-size:1rem;color:var(--text-muted);line-height:1.5}.menu-actions{width:100%;display:flex;flex-direction:column;gap:12px;margin-top:16px}.btn-primary-lg,.btn-secondary-lg{width:100%;padding:16px 20px;border-radius:8px;font-family:var(--font-ui);cursor:pointer;display:flex;align-items:center;gap:16px;text-align:left;transition:all .2s ease;border:none}.btn-primary-lg{background:var(--primary);color:#fff}.btn-primary-lg:hover{background:var(--primary-hover)}.btn-secondary-lg{background:var(--bg-panel);border:1px solid var(--border-light);color:var(--text-main)}.btn-secondary-lg:hover{background:var(--bg-panel);border-color:var(--text-muted)}.btn-icon{font-size:1.8rem}.btn-text-wrap{display:flex;flex-direction:column}.btn-text-wrap strong{font-size:1.05rem;letter-spacing:.2px}.btn-text-wrap small{font-size:.8rem;opacity:.9;margin-top:4px}.menu-footer{font-size:.75rem;color:var(--text-muted);margin-top:20px}.modal-card{max-width:800px;width:90%;background:var(--bg-main);border:1px solid var(--border-light);border-radius:12px;padding:32px;display:flex;flex-direction:column;gap:24px}.modal-card h2{font-family:var(--font-hud);font-size:1.4rem;color:var(--secondary);border-bottom:2px solid var(--border-light);padding-bottom:16px}.level-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}.level-card{background:var(--bg-panel);border:1px solid var(--border-light);border-radius:8px;padding:20px;cursor:pointer;transition:all .2s ease;display:flex;flex-direction:column;gap:10px}.level-card:hover{border-color:var(--primary)}.level-title{font-family:var(--font-hud);font-size:1.05rem;color:var(--secondary);font-weight:700}.level-desc{font-size:.85rem;color:var(--text-muted);line-height:1.4}.btn-back{background:var(--bg-panel);border:1px solid var(--border-light);color:var(--text-main);padding:10px 20px;border-radius:6px;cursor:pointer;align-self:flex-start;font-weight:500;transition:all .2s ease}.btn-back:hover{background:#f1f5f9;color:var(--secondary);border-color:var(--secondary)}#hud-overlay{position:absolute;top:0;left:0;width:100%;height:100%;z-index:5;pointer-events:none;display:flex;flex-direction:column;justify-content:space-between;padding:16px}#hud-overlay *{pointer-events:auto}.hud-header{display:flex;align-items:center;justify-content:space-between;gap:16px}.hud-route-badge{display:flex;align-items:center;gap:12px;background:var(--bg-main);border:1px solid var(--border-light);padding:8px 16px;border-radius:24px;font-family:var(--font-hud);font-size:.9rem;box-shadow:var(--shadow-sm);color:var(--secondary);font-weight:700}.badge-accent{background:var(--primary);color:#fff;font-size:.7rem;padding:4px 10px;border-radius:12px;letter-spacing:1px}.hud-speed-monitor{display:flex;flex-direction:column;align-items:flex-end;background:var(--bg-main);border:1px solid var(--border-light);padding:8px 16px;border-radius:8px;font-family:var(--font-hud);box-shadow:var(--shadow-sm)}.speed-label{font-size:.65rem;color:var(--text-muted);font-weight:700}.speed-val{font-size:1.2rem;font-weight:800;color:var(--signal-green)}.speed-val.warning{color:var(--signal-yellow)}.speed-val.overspeed{color:var(--signal-red)}.hud-minimap-container{background:var(--bg-main);border:1px solid var(--border-light);border-radius:8px;padding:12px 16px;margin:10px 0;display:flex;flex-direction:column;gap:8px;box-shadow:var(--shadow-sm)}.minimap-title{font-family:var(--font-hud);font-size:.7rem;color:var(--secondary);letter-spacing:1px;font-weight:700}.minimap-track{position:relative;width:100%;height:12px;background:var(--border-light);border-radius:6px;overflow:visible}.minimap-train-marker{position:absolute;top:-8px;left:0%;font-size:1.2rem;transform:translate(-50%);transition:left .1s linear}.minimap-signals-container{position:absolute;top:0;left:0;width:100%;height:100%}.minimap-sig-item{position:absolute;top:-4px;width:8px;height:20px;border-radius:4px;transform:translate(-50%);border:2px solid var(--bg-main)}.decision-modal{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:90%;max-width:520px;background:var(--bg-main);border:2px solid var(--primary);border-radius:12px;padding:32px;box-shadow:var(--shadow-lg);display:flex;flex-direction:column;align-items:center;gap:20px;z-index:20}.signal-alert-header{text-align:center}.signal-badge{font-family:var(--font-hud);font-size:1.6rem;font-weight:800;color:var(--secondary)}.signal-context{font-size:.9rem;color:var(--primary);font-weight:700;letter-spacing:1px;margin-top:4px}.aspect-light{width:60px;height:60px;border-radius:50%;border:4px solid var(--border-light);margin:0 auto}.aspect-light.red{background:var(--signal-red);border-color:var(--signal-red)}.aspect-light.yellow{background:var(--signal-yellow);border-color:var(--signal-yellow)}.aspect-light.green{background:var(--signal-green);border-color:var(--signal-green)}.signal-desc{font-size:1rem;text-align:center;color:var(--text-main);line-height:1.4}.decision-timer-box{position:relative;width:80px;height:80px;display:flex;align-items:center;justify-content:center}.timer-svg{position:absolute;width:100%;height:100%;transform:rotate(-90deg)}.timer-bg{fill:none;stroke:var(--border-light);stroke-width:8}.timer-progress{fill:none;stroke:var(--primary);stroke-width:8;stroke-dasharray:264;stroke-dashoffset:0;transition:stroke-dashoffset .1s linear}.timer-num{font-family:var(--font-hud);font-size:1.6rem;font-weight:800;color:var(--secondary)}.action-buttons-grid{width:100%;display:grid;grid-template-columns:1fr 1fr;gap:12px}.btn-action-choice{background:var(--bg-main);border:1px solid var(--border-light);color:var(--secondary);padding:14px;border-radius:8px;font-size:.95rem;font-weight:600;cursor:pointer;transition:all .2s ease;box-shadow:var(--shadow-sm)}.btn-action-choice:hover{border-color:var(--primary);background:var(--bg-panel);color:var(--primary)}.voice-indicator-bar{display:flex;align-items:center;gap:10px;background:var(--bg-panel);border:1px solid var(--border-light);padding:8px 16px;border-radius:20px;font-size:.8rem;color:var(--secondary);font-weight:500}.hud-dashboard{display:grid;grid-template-columns:200px 1fr 200px;gap:20px;align-items:flex-end}.control-panel{background:var(--bg-main);border:1px solid var(--border-light);border-radius:12px;padding:16px;display:flex;flex-direction:column;align-items:center;gap:12px;box-shadow:var(--shadow-md)}.panel-header{font-family:var(--font-hud);font-size:.75rem;color:var(--secondary);letter-spacing:1px;font-weight:700}.manual-lever-wrap{display:flex;align-items:center;gap:12px;height:160px}.lever-notch-marks{display:flex;flex-direction:column;justify-content:space-between;height:100%;font-family:var(--font-hud);font-size:.75rem;color:var(--text-muted);font-weight:600}.vertical-slider{writing-mode:bt-lr;-webkit-appearance:slider-vertical;width:40px;height:100%;cursor:pointer}.notch-readout{font-family:var(--font-hud);font-size:.9rem;font-weight:800;color:var(--primary)}.dcc-buttons-wrap{display:flex;flex-direction:column;gap:8px;width:100%}.dcc-btn{background:var(--bg-main);border:1px solid var(--border-light);color:var(--secondary);padding:10px;border-radius:6px;font-family:var(--font-hud);font-size:.8rem;font-weight:600;cursor:pointer;transition:all .2s ease}.dcc-btn:hover{background:var(--bg-panel);border-color:var(--secondary)}.dcc-btn.danger{background:#fef2f2;border-color:var(--signal-red);color:var(--signal-red)}.dcc-btn.danger:hover{background:#fee2e2}.dashboard-center{display:flex;flex-direction:column;align-items:center;gap:12px}.speedometer-gauge{background:var(--bg-main);border:4px solid var(--secondary);width:140px;height:140px;border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;box-shadow:var(--shadow-md)}.speed-number{font-family:var(--font-hud);font-size:3rem;font-weight:900;color:var(--secondary);line-height:1}.speed-unit{font-family:var(--font-hud);font-size:.75rem;color:var(--text-muted);letter-spacing:1px;font-weight:700;margin-top:4px}.dashboard-status-pills{display:flex;gap:10px}.status-pill{background:var(--bg-main);border:1px solid var(--border-light);padding:6px 12px;border-radius:16px;font-family:var(--font-hud);font-size:.8rem;color:var(--secondary);font-weight:600;box-shadow:var(--shadow-sm)}.horn-btn{background:var(--primary);border:none;color:#fff;padding:12px 24px;border-radius:30px;font-family:var(--font-hud);font-size:.9rem;font-weight:700;cursor:pointer;display:flex;align-items:center;gap:10px;box-shadow:var(--shadow-md);transition:all .2s ease}.horn-btn:hover{background:var(--primary-hover);transform:translateY(-1px)}.horn-btn:active{transform:scale(.96)}.burger-drawer{position:absolute;top:0;left:0;width:100%;height:100%;background:#1e293b66;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:30;display:flex}.drawer-content{width:320px;height:100%;background:var(--bg-main);border-right:1px solid var(--border-light);padding:24px;display:flex;flex-direction:column;gap:20px;box-shadow:var(--shadow-lg)}.drawer-header{display:flex;justify-content:space-between;align-items:center}.drawer-header h2{font-family:var(--font-hud);font-size:1.2rem;color:var(--secondary);font-weight:800}.btn-close{background:none;border:none;color:var(--text-muted);font-size:2rem;cursor:pointer;line-height:1}.btn-close:hover{color:var(--text-main)}.drawer-body{display:flex;flex-direction:column;gap:12px}.drawer-menu-btn{background:var(--bg-main);border:1px solid var(--border-light);color:var(--text-main);padding:14px;border-radius:8px;font-size:.95rem;font-weight:500;cursor:pointer;text-align:left;transition:all .2s ease}.drawer-menu-btn:hover{background:var(--bg-panel);border-color:var(--secondary);color:var(--secondary)}.drawer-menu-btn.danger{color:var(--signal-red)}.drawer-menu-btn.danger:hover{background:#fef2f2;border-color:var(--signal-red)}.drawer-divider{height:1px;background:var(--border-light);margin:8px 0}.drawer-setting-item{display:flex;justify-content:space-between;align-items:center;font-size:.9rem;font-weight:500;color:var(--text-main)}.toggle-btn{background:var(--bg-main);border:1px solid var(--border-light);color:var(--text-muted);padding:6px 12px;border-radius:6px;cursor:pointer;font-weight:600;font-size:.85rem;transition:all .2s ease}.toggle-btn.active{background:var(--primary);color:#fff;border-color:var(--primary)}.modal-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:#1e293b99;z-index:25;display:flex;align-items:center;justify-content:center;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.summary-card{text-align:center;align-items:center;max-width:500px}.summary-badge-rank{font-family:var(--font-hud);font-size:1.1rem;color:var(--signal-green);background:#ecfdf5;border:1px solid var(--signal-green);padding:8px 20px;border-radius:24px;font-weight:700}.summary-stats{width:100%;display:flex;flex-direction:column;gap:12px;background:var(--bg-panel);border:1px solid var(--border-light);padding:20px;border-radius:8px}.stat-row{display:flex;justify-content:space-between;font-size:1rem;color:var(--text-main)}.stat-row strong{color:var(--secondary)}.summary-actions{display:flex;gap:16px;width:100%;margin-top:10px}.encyclopedia-modal-card{max-width:900px;width:92%;max-height:90vh;display:flex;flex-direction:column;padding:24px;overflow:hidden}.encyclopedia-header-bar{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;padding-bottom:16px;border-bottom:1px solid var(--border-light)}.encyclopedia-scroll-area{flex:1;overflow-y:auto;padding-top:16px;padding-right:4px}.tutorial-modal-card{max-width:640px;width:92%;max-height:90vh;display:flex;flex-direction:column;padding:24px}.tutorial-modal-header{display:flex;justify-content:space-between;align-items:flex-start;border-bottom:1px solid var(--border-light);padding-bottom:12px}.tutorial-step-badge{font-size:.75rem;font-weight:700;color:var(--primary);background:#eff6ff;border:1px solid var(--primary);padding:4px 12px;border-radius:12px;letter-spacing:.5px}.tutorial-step-body{margin:16px 0;font-size:.95rem;line-height:1.6;color:var(--text-main);overflow-y:auto;max-height:55vh}.tutorial-step-card{background:var(--bg-panel);border:1px solid var(--border-light);border-radius:10px;padding:16px;margin-top:12px}.tutorial-step-card h4{color:var(--secondary);margin-bottom:8px;font-size:1rem}.tutorial-modal-footer{display:flex;align-items:center;gap:12px;border-top:1px solid var(--border-light);padding-top:16px}.brand-header-logo{display:flex;align-items:center;gap:12px;justify-content:center}.header-logo-img{max-width:340px;width:90%;height:auto;display:block}.departure-toast{position:absolute;top:75px;right:16px;z-index:50;width:340px;max-width:calc(100vw - 32px);background:var(--bg-main);border:2px solid var(--primary);border-radius:12px;padding:14px 16px;box-shadow:0 10px 25px -5px #00000026;animation:slideInRight .3s ease-out}@keyframes slideInRight{0%{transform:translate(100%);opacity:0}to{transform:translate(0);opacity:1}}.departure-toast-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}.departure-toast-badge{font-size:.7rem;font-weight:800;color:var(--primary);background:#eff6ff;border:1px solid var(--primary);padding:3px 10px;border-radius:12px}.departure-toast-timer{font-size:.85rem;font-weight:800;color:var(--signal-red)}@media (max-width: 768px){.menu-hero-card{padding:24px 18px;gap:16px}.game-title{font-size:2.2rem}.modal-card{padding:20px 16px;max-height:92vh}.btn-primary-lg,.btn-secondary-lg{padding:14px 16px;min-height:48px}.btn-text-wrap strong{font-size:.95rem}.btn-text-wrap small{font-size:.78rem}.hud-header{padding:8px 12px}.hud-route-badge{font-size:.75rem}.hud-bottom-bar{padding:10px;gap:8px}.control-panel{padding:10px}.speedometer-display{width:90px;height:90px}.speedometer-val{font-size:1.8rem}.horn-btn{padding:10px 16px;font-size:.82rem}.drawer-content{width:85%;max-width:300px}.encyclopedia-header-bar{flex-direction:column;gap:10px}.encyclopedia-header-bar .btn-back{align-self:flex-start}}@media (max-width: 480px){.game-title{font-size:1.8rem}.modal-card{width:96%;padding:16px 12px}.hud-header{flex-wrap:wrap;gap:6px}.hud-route-badge{display:none}.dashboard-center{min-width:120px}.speedometer-display{width:75px;height:75px}.speedometer-val{font-size:1.5rem}.notch-readout{font-size:.75rem}}@media (max-height: 500px) and (orientation: landscape){.view-screen{padding:8px}.menu-hero-card{padding:14px 20px;gap:10px}.game-title{font-size:1.6rem}.menu-actions{margin-top:8px;gap:8px}.btn-primary-lg,.btn-secondary-lg{padding:10px 14px}.modal-card{max-height:96vh;padding:12px 16px}}