:root{--bg-color: #16181b;--text-main: #f0f2f5;--text-muted: #9aa0a6;--panel-bg: rgba(26, 29, 34, .82);--panel-border: rgba(255, 255, 255, .1);--accent: #e59866;--accent-glow: rgba(229, 152, 102, .35);--success: #34d399;--font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--font-mono: "SF Mono", Menlo, Monaco, Consolas, monospace}*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}html,body{width:100%;height:100%;height:100dvh;overflow:hidden;background-color:var(--bg-color);color:var(--text-main);font-family:var(--font-sans);touch-action:none;user-select:none;-webkit-user-select:none;overscroll-behavior:none}#app{position:relative;width:100%;height:100%;height:100dvh;overflow:hidden}#canvas-container{position:absolute;top:0;left:0;width:100%;height:100%;cursor:grab;touch-action:none}#canvas-container:active{cursor:grabbing}.ui-layer{position:absolute;top:0;left:0;width:100%;pointer-events:none;padding:max(16px,env(safe-area-inset-top)) max(16px,env(safe-area-inset-right)) max(16px,env(safe-area-inset-bottom)) max(16px,env(safe-area-inset-left));display:flex;justify-content:flex-end;align-items:center;gap:10px;z-index:10}.icon-toggle-btn{pointer-events:auto;position:relative;background:var(--panel-bg);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--panel-border);color:var(--text-main);padding:10px 16px;border-radius:14px;font-size:13px;font-weight:500;display:inline-flex;align-items:center;gap:8px;cursor:pointer;transition:all .22s cubic-bezier(.16,1,.3,1);box-shadow:0 4px 20px #00000059}.icon-toggle-btn:hover{background:#2d323aeb;border-color:#ffffff38;transform:translateY(-1px)}.icon-toggle-btn:active{transform:translateY(0)}.icon-toggle-btn.active{border-color:var(--accent);background:#e598663d;color:#fff;box-shadow:0 0 16px var(--accent-glow),0 4px 20px #00000059}.icon-toggle-btn .icon{font-size:15px;line-height:1}.icon-toggle-btn .active-dot{display:none;width:7px;height:7px;border-radius:50%;background-color:var(--success);margin-left:2px;box-shadow:0 0 8px var(--success)}.icon-toggle-btn.active .active-dot{display:inline-block;animation:pulse-dot 1.8s infinite ease-in-out}@keyframes pulse-dot{0%,to{transform:scale(.9);opacity:.8}50%{transform:scale(1.3);opacity:1;box-shadow:0 0 12px var(--success)}}.zoom-indicator{position:absolute;top:max(72px,calc(env(safe-area-inset-top) + 56px));right:max(16px,env(safe-area-inset-right));background:#121418d1;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border:1px solid var(--panel-border);padding:6px 12px;border-radius:20px;display:flex;align-items:center;gap:6px;font-size:12px;pointer-events:none;opacity:0;transform:translateY(-4px) scale(.96);transition:opacity .25s ease,transform .25s ease;z-index:10;box-shadow:0 4px 16px #0000004d}.zoom-indicator.visible{opacity:1;transform:translateY(0) scale(1)}.zoom-indicator .zoom-label{color:var(--text-muted);font-size:10px;font-weight:600;letter-spacing:.5px;text-transform:uppercase}.zoom-indicator .zoom-val{color:var(--accent);font-family:var(--font-mono);font-weight:600}.toast{position:absolute;bottom:max(24px,env(safe-area-inset-bottom));left:50%;transform:translate(-50%) translateY(20px);background:#16191ef0;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid rgba(255,255,255,.14);color:#fff;padding:12px 20px;border-radius:14px;font-size:13px;font-weight:450;line-height:1.4;text-align:center;max-width:90vw;width:max-content;box-shadow:0 10px 30px #0000008c;pointer-events:none;opacity:0;transition:all .3s cubic-bezier(.16,1,.3,1);z-index:50}.toast.visible{opacity:1;transform:translate(-50%) translateY(0)}.settings-panel{position:absolute;top:max(70px,calc(env(safe-area-inset-top) + 56px));right:max(16px,env(safe-area-inset-right));width:310px;max-width:calc(100vw - 32px);background:var(--panel-bg);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);border:1px solid var(--panel-border);border-radius:18px;padding:16px;box-shadow:0 16px 40px #0000008c,0 0 1px #ffffff26;z-index:30;opacity:0;pointer-events:none;transform:translateY(-8px) scale(.97);transition:opacity .22s cubic-bezier(.16,1,.3,1),transform .22s cubic-bezier(.16,1,.3,1)}.settings-panel.visible{opacity:1;pointer-events:auto;transform:translateY(0) scale(1)}.settings-header{display:flex;justify-content:space-between;align-items:center;padding-bottom:12px;border-bottom:1px solid rgba(255,255,255,.08);margin-bottom:14px}.settings-title{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--text-main);letter-spacing:-.2px}.settings-title .settings-icon{font-size:15px}.settings-close-btn{background:#ffffff0f;border:none;color:var(--text-muted);width:26px;height:26px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:12px;cursor:pointer;transition:all .18s ease}.settings-close-btn:hover{background:#ffffff24;color:var(--text-main)}.settings-body{display:flex;flex-direction:column;gap:16px}.setting-item{display:flex;flex-direction:column;gap:6px}.setting-label-row{display:flex;justify-content:space-between;align-items:center}.setting-label{font-size:13px;font-weight:500;color:var(--text-main)}.setting-val{font-size:13px;font-weight:600;font-family:var(--font-mono);color:var(--accent);background:#e5986626;padding:2px 7px;border-radius:6px}.setting-hint{font-size:11px;color:var(--text-muted);line-height:1.3}.custom-slider{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:100%;height:6px;border-radius:3px;background:#ffffff1f;outline:none;cursor:pointer;margin:6px 0 2px;transition:background .2s ease}.custom-slider:hover{background:#ffffff2e}.custom-slider::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:20px;height:20px;border-radius:50%;background:var(--accent);border:2.5px solid #ffffff;box-shadow:0 2px 8px #00000080;cursor:pointer;transition:transform .12s ease,box-shadow .12s ease}.custom-slider::-webkit-slider-thumb:hover{transform:scale(1.15);box-shadow:0 0 10px var(--accent-glow)}.custom-slider::-webkit-slider-thumb:active{transform:scale(1.05)}.custom-slider::-moz-range-thumb{width:20px;height:20px;border-radius:50%;background:var(--accent);border:2.5px solid #ffffff;box-shadow:0 2px 8px #00000080;cursor:pointer}.settings-reset-btn{background:#ffffff0d;border:1px solid rgba(255,255,255,.08);color:var(--text-muted);padding:8px 12px;border-radius:10px;font-size:12px;font-weight:500;cursor:pointer;margin-top:4px;transition:all .18s ease;display:flex;align-items:center;justify-content:center}.settings-reset-btn:hover{background:#ffffff1a;color:var(--text-main);border-color:#ffffff29}@media(max-width:480px){.ui-layer{padding:max(12px,env(safe-area-inset-top)) max(12px,env(safe-area-inset-right)) max(12px,env(safe-area-inset-bottom)) max(12px,env(safe-area-inset-left));gap:8px}.icon-toggle-btn{padding:8px 12px;font-size:12px;border-radius:12px;gap:6px}.icon-toggle-btn .icon{font-size:14px}.settings-panel{top:max(60px,calc(env(safe-area-inset-top) + 48px));right:12px;left:12px;width:auto;max-width:none;border-radius:16px;padding:14px}}.route-filters{position:absolute;bottom:max(16px,env(safe-area-inset-bottom));left:max(16px,env(safe-area-inset-left));width:300px;max-width:calc(100vw - 32px);max-height:calc(100dvh - 100px - env(safe-area-inset-top) - env(safe-area-inset-bottom));overflow-y:auto;touch-action:pan-y;overscroll-behavior:contain;background:var(--panel-bg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--panel-border);border-radius:16px;box-shadow:0 8px 28px #00000059;z-index:20;font-size:13px}.route-filters summary{padding:14px;cursor:pointer;font-weight:600}#route-count{float:right;color:var(--accent);font-size:12px;font-variant-numeric:tabular-nums}.route-filter-body{padding:0 14px 14px;display:flex;flex-direction:column;gap:12px}.filter-mode-label,.grade-range label,.route-filters legend{color:var(--text-muted);font-size:12px}.filter-mode-label{margin-bottom:-6px}.route-filters select{width:100%;min-height:38px;padding:8px;color:var(--text-main);background:#252a31;border:1px solid rgba(255,255,255,.16);border-radius:8px;font:inherit;color-scheme:dark;cursor:pointer}.grade-range{display:flex;gap:12px}.grade-range label{flex:1}.grade-range select{margin-top:5px}.route-filters fieldset{border:0;min-width:0}.route-filters legend{margin-bottom:8px}.grade-chips{display:grid;grid-template-columns:repeat(6,1fr);gap:5px}.grade-chip{position:relative;cursor:pointer}.grade-chip input{position:absolute;opacity:0;width:100%;height:100%}.grade-chip span{display:grid;place-items:center;min-height:34px;border:1px solid var(--panel-border);border-radius:7px;color:var(--text-muted);font-size:12px}.grade-chip input:checked+span{color:#fff;background:#e5986638;border-color:var(--accent)}.grade-chip input:focus-visible+span,.route-filters :is(select,button,summary):focus-visible{outline:2px solid var(--accent);outline-offset:2px}.filter-empty{color:var(--text-muted);line-height:1.4}.route-filters [hidden]{display:none}