:root{--ui-font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--ink: #46342b;--ink-soft: #8a7466;--panel: #fff6e9;--panel-raised: #fffdf7;--panel-edge: #e8d7bd;--accent: #ff6b35;--accent-deep: #e5521d;--accent-soft: #ffe3d6;--good: #2e9e5b;--good-deep: #1f7f46;--good-soft: #dff2e5;--warn: #e6a13c;--warn-soft: #fdeed2;--danger: #d94040;--danger-soft: #fbe3e3;--focus: #3d9bd9;--radius: 14px;--radius-small: 10px;--shadow: 0 6px 18px rgba(90, 55, 20, .16), 0 2px 5px rgba(90, 55, 20, .1);--shadow-big: 0 14px 40px rgba(90, 55, 20, .24), 0 4px 10px rgba(90, 55, 20, .12)}.hud-root{position:absolute;inset:0;pointer-events:none;z-index:10;font-family:var(--ui-font);font-size:13.5px;line-height:1.4;color:var(--ink);user-select:none;-webkit-user-select:none}.hud-root [hidden],.modal-backdrop [hidden]{display:none!important}.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}.hud-root button,.modal-backdrop button,.colors-pop button{font-family:inherit;font-size:inherit;color:inherit}.btn,.bar-btn,.ctl-btn,.tool-btn,.speed-btn,.palette-tab,.palette-collapse,.palette-reopen,.modal-close,.coach-skip,.swatch{cursor:pointer;border:2px solid var(--panel-edge);background:var(--panel-raised);border-radius:var(--radius-small);min-height:32px;min-width:32px;padding:4px 10px;font-weight:650;color:var(--ink);transition:transform .08s ease,box-shadow .12s ease,background .12s ease,border-color .12s ease}.btn:hover:not(:disabled),.bar-btn:hover:not(:disabled),.ctl-btn:hover:not(:disabled),.tool-btn:hover:not(:disabled),.speed-btn:hover:not(:disabled),.palette-tab:hover,.palette-collapse:hover,.palette-reopen:hover,.modal-close:hover{border-color:var(--accent);box-shadow:0 2px 8px #e5521d2e}.btn:active:not(:disabled),.bar-btn:active:not(:disabled),.ctl-btn:active:not(:disabled),.speed-btn:active:not(:disabled){transform:translateY(1px) scale(.98)}.hud-root button:disabled,.modal-backdrop button:disabled{opacity:.45;cursor:default}.btn-primary{background:var(--accent);border-color:var(--accent-deep);color:#fff}.btn-primary:hover:not(:disabled){background:var(--accent-deep);border-color:var(--accent-deep)}.btn-danger{background:var(--danger-soft);border-color:#e9b6b6;color:#a32626}.btn-danger:hover:not(:disabled){border-color:var(--danger);box-shadow:0 2px 8px #d9404033}.hud-root :focus-visible,.modal-backdrop :focus-visible,.colors-pop :focus-visible{outline:3px solid var(--focus);outline-offset:2px}.topbar{pointer-events:auto;position:absolute;top:10px;left:12px;right:12px;z-index:40;display:flex;align-items:center;flex-wrap:wrap;gap:8px;background:var(--panel);border:2px solid var(--panel-edge);border-radius:var(--radius);box-shadow:var(--shadow);padding:6px 10px}.topbar-group{display:flex;align-items:center;gap:6px}.topbar-spacer{flex:1 1 0;min-width:4px}.topbar-logo{font-size:20px;filter:drop-shadow(0 1px 1px rgba(90,55,20,.3))}.coaster-name{pointer-events:auto;font-family:inherit;font-size:15px;font-weight:700;color:var(--ink);background:transparent;border:2px solid transparent;border-radius:var(--radius-small);padding:4px 8px;min-height:32px;width:clamp(120px,22vw,240px);user-select:text;-webkit-user-select:text;transition:border-color .12s ease,background .12s ease}.coaster-name:hover{border-color:var(--panel-edge)}.coaster-name:focus{background:var(--panel-raised);border-color:var(--accent);outline:none}.bar-btn{display:inline-flex;align-items:center;gap:6px;white-space:nowrap}.bar-btn-ico{font-size:15px;line-height:1}.bar-btn.is-active{border-color:var(--accent);background:var(--accent-soft)}.piece-count{font-variant-numeric:tabular-nums;font-weight:700;font-size:12.5px;color:var(--ink-soft);background:var(--panel-raised);border:2px solid var(--panel-edge);border-radius:999px;padding:3px 10px;white-space:nowrap}.palette{pointer-events:auto;position:absolute;left:12px;top:72px;bottom:12px;width:236px;z-index:30;display:flex;flex-direction:column;background:var(--panel);border:2px solid var(--panel-edge);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;transition:transform .22s ease,opacity .22s ease}.palette.is-collapsed{transform:translate(calc(-100% - 24px));opacity:0;pointer-events:none}.palette-head{display:flex;align-items:center;gap:6px;padding:8px 8px 6px;border-bottom:2px solid var(--panel-edge)}.palette-title{font-weight:800;font-size:13px;letter-spacing:.02em;text-transform:uppercase;color:var(--ink-soft);flex:1}.palette-tools{display:flex;gap:4px}.tool-btn{padding:2px 8px;font-size:14px}.tool-btn.is-active{background:var(--accent);border-color:var(--accent-deep);color:#fff}.palette-collapse{padding:2px 8px;font-size:16px;line-height:1}.palette-reopen{pointer-events:auto;position:absolute;left:0;top:50%;transform:translateY(-50%);z-index:30;display:none;border-radius:0 var(--radius) var(--radius) 0;border-left:none;font-size:18px;padding:14px 8px;box-shadow:var(--shadow)}.palette-reopen.is-shown{display:block}.palette-tabs{display:flex;gap:2px;padding:6px 6px 4px}.palette-tab{flex:1 1 0;display:flex;flex-direction:column;align-items:center;gap:1px;padding:3px 2px;min-width:0;border-color:transparent;background:transparent}.palette-tab-ico{font-size:14px;line-height:1.2}.palette-tab-label{font-size:9px;font-weight:700;color:var(--ink-soft);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.palette-tab.is-active{background:var(--accent-soft);border-color:var(--accent)}.palette-body{flex:1;overflow-y:auto;padding:4px 8px 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#ff6b3540}.palette-tile:active{cursor:grabbing}.tile-thumb{width:64px;height:64px;object-fit:contain;pointer-events:none;-webkit-user-drag:none;user-select:none}.tile-thumb--fallback{display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:800;color:var(--ink-soft);background:linear-gradient(150deg,#f8ecd9,#efdfc4);border-radius:10px}.tile-label{font-size:11.5px;font-weight:650;text-align:center;color:var(--ink);line-height:1.2}.status-chip{pointer-events:auto;position:absolute;top:72px;left:50%;transform:translate(-50%);z-index:30;border-radius:999px;padding:6px 18px;font-weight:750;font-size:13.5px;white-space:nowrap;border:2px solid var(--panel-edge);box-shadow:var(--shadow);cursor:pointer}.status-chip--neutral{background:var(--panel);color:var(--ink-soft)}.status-chip--amber{background:var(--warn-soft);border-color:var(--warn);color:#8a5a10}.status-chip--green{background:var(--good-soft);border-color:var(--good);color:var(--good-deep)}.right-stack{position:absolute;right:12px;bottom:12px;z-index:30;display:flex;flex-direction:column;align-items:flex-end;gap:10px;pointer-events:none}.right-stack>*{pointer-events:auto}.run-cluster{display:flex;flex-direction:column;align-items:stretch;gap:8px;background:var(--panel);border:2px solid var(--panel-edge);border-radius:var(--radius);box-shadow:var(--shadow);padding:10px;min-width:196px}.ctl-row{display:flex;align-items:center;justify-content:center;gap:6px}.ctl-btn{font-size:16px;line-height:1;padding:4px 0;flex:1 1 0}.ctl-btn--small{flex:0 0 auto;min-width:32px;font-size:12px}.ctl-btn.is-active{background:var(--accent-soft);border-color:var(--accent)}.ctl-sep{width:2px;align-self:stretch;background:var(--panel-edge);border-radius:2px;margin:2px}.height-row{justify-content:space-between}.height-caption{font-size:11px;font-weight:800;text-transform:uppercase;letter-spacing:.04em;color:var(--ink-soft)}.height-val{font-weight:800;font-variant-numeric:tabular-nums;min-width:42px;text-align:center}.pause-btn{flex:0 0 auto;min-width:40px}.speed-group{display:flex;flex:1;border-radius:var(--radius-small);overflow:hidden;border:2px solid var(--panel-edge)}.speed-btn{flex:1 1 0;border:none;border-radius:0;border-right:2px solid var(--panel-edge);background:var(--panel-raised);min-height:30px;font-variant-numeric:tabular-nums}.speed-btn:last-child{border-right:none}.speed-btn.is-active{background:var(--accent);color:#fff}.run-btn{pointer-events:auto;display:flex;align-items:center;justify-content:center;gap:10px;min-height:48px;border-radius:var(--radius);border:2px solid var(--good-deep);background:linear-gradient(180deg,#38b76c,var(--good));color:#fff;font-size:17px;font-weight:800;letter-spacing:.03em;text-transform:uppercase;cursor:pointer;box-shadow:0 4px 0 var(--good-deep),0 8px 16px #1f7f4659;transition:transform .08s ease,box-shadow .08s ease,filter .12s ease}.run-btn:hover:not(:disabled){filter:brightness(1.06)}.run-btn:active:not(:disabled){transform:translateY(3px);box-shadow:0 1px 0 var(--good-deep),0 3px 8px #1f7f4659}.run-btn:disabled{filter:saturate(.25) brightness(1.05);box-shadow:0 4px #9aa39c;border-color:#9aa39c;opacity:.7;cursor:default}.run-btn.is-running{background:linear-gradient(180deg,#e85c47,var(--danger));border-color:#a32626;box-shadow:0 4px #a32626,0 8px 16px #d9404059}.run-btn.is-running:active{box-shadow:0 1px #a32626,0 3px 8px #d9404059}.run-ico{font-size:15px}.stats-panel{background:var(--panel);border:2px solid var(--panel-edge);border-radius:var(--radius);box-shadow:var(--shadow);padding:10px 14px;min-width:196px}.stats-speed{display:flex;align-items:baseline;justify-content:center;gap:6px}.stats-speed-val{font-size:30px;font-weight:850;font-variant-numeric:tabular-nums;color:var(--accent-deep);line-height:1.1}.stats-speed-unit{font-size:12px;font-weight:700;color:var(--ink-soft)}.stats-rows{width:100%;margin-top:6px;border-collapse:collapse;font-size:12.5px}.stats-rows td{padding:2px 0}.stats-label{color:var(--ink-soft);font-weight:650;padding-right:14px}.stats-val{text-align:right;font-weight:750;font-variant-numeric:tabular-nums}.stats-stalled{margin-top:8px;padding:6px 8px;border-radius:var(--radius-small);background:var(--warn-soft);border:2px solid var(--warn);color:#8a5a10;font-weight:650;font-size:12.5px}.stats-stalled:before{content:"⚠ "}.toast-stack{position:absolute;bottom:18px;left:50%;transform:translate(-50%);z-index:70;display:flex;flex-direction:column;align-items:center;gap:8px;pointer-events:none;max-width:min(460px,calc(100vw - 24px))}.toast{pointer-events:auto;background:var(--panel);border:2px solid var(--panel-edge);border-radius:12px;box-shadow:var(--shadow);padding:8px 16px;font-weight:650;text-align:center;cursor:pointer;animation:toast-in .22s ease}.toast--warn{background:var(--warn-soft);border-color:var(--warn);color:#8a5a10}.toast--success{background:var(--good-soft);border-color:var(--good);color:var(--good-deep)}.toast.is-leaving{animation:toast-out .22s ease forwards}@keyframes toast-in{0%{opacity:0;transform:translateY(10px) scale(.96)}}@keyframes toast-out{to{opacity:0;transform:translateY(8px) scale(.96)}}.continue-banner{pointer-events:auto;position:absolute;top:118px;left:50%;transform:translate(-50%);z-index:45;display:flex;align-items:center;gap:10px;background:var(--panel);border:2px solid var(--panel-edge);border-radius:var(--radius);box-shadow:var(--shadow-big);padding:10px 14px;white-space:nowrap}.continue-text{font-weight:750}.coach-mark{pointer-events:auto;position:absolute;z-index:60;display:flex;align-items:center;gap:12px;max-width:300px;background:var(--accent);border:2px solid var(--accent-deep);border-radius:var(--radius);box-shadow:var(--shadow-big);padding:10px 14px;color:#fff;animation:coach-pop .3s ease}.coach-body{display:flex;align-items:center;gap:8px}.coach-count{flex:0 0 auto;font-size:11px;font-weight:800;background:#ffffff40;border-radius:999px;padding:2px 8px}.coach-text{font-weight:750;font-size:14px}.coach-skip{flex:0 0 auto;min-height:32px;min-width:auto;padding:2px 10px;font-size:11.5px;font-weight:700;background:#ffffff29;border-color:#ffffff80;color:#fff;white-space:nowrap}.coach-skip:hover{background:#ffffff4d;border-color:#fff;box-shadow:none}.coach-arrow{position:absolute;width:0;height:0;border:10px solid transparent}.coach--palette{left:262px;top:130px}.coach--palette .coach-arrow{left:-20px;top:50%;transform:translateY(-50%);border-right-color:var(--accent-deep)}.coach--canvas{left:50%;top:124px;transform:translate(-50%)}.coach--canvas .coach-arrow,.coach--run .coach-arrow{bottom:-20px;left:50%;transform:translate(-50%);border-top-color:var(--accent-deep)}.coach--run{right:16px;bottom:200px}.coach--run .coach-arrow{left:auto;right:28px;transform:none}@keyframes coach-pop{0%{opacity:0;transform:translate(var(--coach-tx, 0)) scale(.9)}}.coach--canvas{--coach-tx: -50%}.colors-pop{position:fixed;z-index:900;pointer-events:auto;background:var(--panel);border:2px solid var(--panel-edge);border-radius:var(--radius);box-shadow:var(--shadow-big);padding:12px 14px;display:flex;flex-direction:column;gap:10px;font-family:var(--ui-font);font-size:13.5px;color:var(--ink)}.colors-group{display:flex;flex-direction:column;gap:5px}.colors-label{font-size:11px;font-weight:800;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-soft)}.swatch-row{display:grid;grid-template-columns:repeat(6,1fr);gap:6px}.swatch{width:32px;height:32px;min-width:32px;min-height:32px;padding:0;border-radius:9px;border:2px solid rgba(70,52,43,.25)}.swatch:hover{transform:scale(1.08)}.swatch.is-selected{box-shadow:0 0 0 2px var(--panel),0 0 0 5px var(--accent);border-color:#46342b73}.modal-backdrop{position:fixed;inset:0;z-index:1000;pointer-events:auto;display:flex;align-items:center;justify-content:center;background:#462d146b;font-family:var(--ui-font);font-size:13.5px;color:var(--ink);animation:modal-fade .16s ease}.modal-card{background:var(--panel);border:2px solid var(--panel-edge);border-radius:16px;box-shadow:var(--shadow-big);width:min(560px,calc(100vw - 32px));max-height:min(80vh,640px);display:flex;flex-direction:column;animation:modal-pop .18s ease}.modal-head{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:14px 16px 10px;border-bottom:2px solid var(--panel-edge)}.modal-title{margin:0;font-size:17px;font-weight:800}.modal-close{min-width:32px;padding:2px 8px;font-size:14px}.modal-body{padding:14px 16px;overflow-y:auto}.modal-foot{display:flex;justify-content:flex-end;gap:8px;padding-top:12px;margin-top:12px;border-top:2px solid var(--panel-edge)}.modal-hint{margin:6px 0;color:var(--ink-soft);font-weight:550}.modal-hint--warn{color:#8a5a10;background:var(--warn-soft);border:2px solid var(--warn);border-radius:var(--radius-small);padding:10px 12px}@keyframes modal-fade{0%{opacity:0}}@keyframes modal-pop{0%{opacity:0;transform:scale(.95) translateY(8px)}}.slot-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px}.slot-row{display:flex;align-items:center;gap:10px;background:var(--panel-raised);border:2px solid var(--panel-edge);border-radius:12px;padding:6px 10px;min-height:56px}.slot-num{flex:0 0 auto;width:22px;text-align:center;font-weight:800;color:var(--ink-soft);font-variant-numeric:tabular-nums}.slot-thumb{flex:0 0 auto;width:56px;height:42px;object-fit:cover;border-radius:8px;background:linear-gradient(150deg,#cfe8f7,#a8d8a8);border:1px solid rgba(70,52,43,.18);display:flex;align-items:center;justify-content:center;font-size:18px}.slot-thumb--empty{background:repeating-linear-gradient(45deg,#f3e8d8,#f3e8d8 6px,#ecdfc9 6px 12px);color:var(--ink-soft)}.slot-info{flex:1 1 auto;min-width:0;display:flex;flex-direction:column;gap:1px}.slot-name{font-weight:750;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.slot-name--empty{color:var(--ink-soft);font-weight:600;font-style:italic}.slot-sub{font-size:11.5px;color:var(--ink-soft);font-variant-numeric:tabular-nums}.slot-actions{flex:0 0 auto;display:flex;align-items:center;gap:6px}.slot-actions .btn{padding:3px 10px;min-height:30px;font-size:12.5px}.inline-confirm{display:inline-flex;align-items:center;gap:6px}.inline-confirm-q{font-size:12px;font-weight:750;color:#a32626;white-space:nowrap}.settings-form{display:flex;flex-direction:column;gap:10px}.settings-section{margin:4px 0 0;font-size:11.5px;font-weight:800;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-soft)}.setting-row{display:grid;grid-template-columns:120px 1fr 48px;align-items:center;gap:10px}.setting-label{font-weight:650}.setting-value{text-align:right;font-variant-numeric:tabular-nums;font-weight:700;color:var(--ink-soft);font-size:12.5px}.setting-slider{width:100%;accent-color:var(--accent);min-height:32px;cursor:pointer}.setting-select{grid-column:2 / 4;font-family:inherit;font-size:inherit;font-weight:650;color:var(--ink);background:var(--panel-raised);border:2px solid var(--panel-edge);border-radius:var(--radius-small);min-height:34px;padding:4px 8px;cursor:pointer}.help-table{width:100%;border-collapse:collapse}.help-table td{padding:5px 4px;border-bottom:1px solid rgba(232,215,189,.7);vertical-align:top}.help-keys{white-space:nowrap;padding-right:16px}.help-keybox{display:inline-flex;align-items:center;gap:5px;flex-wrap:wrap}.help-keybox kbd{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:11.5px;font-weight:700;background:var(--panel-raised);border:1.5px solid var(--panel-edge);border-bottom-width:3px;border-radius:6px;padding:1px 7px;color:var(--ink)}.help-sep{font-size:11px;color:var(--ink-soft);font-weight:650}.help-what{color:var(--ink);font-weight:550}.webgl-error{position:absolute;inset:0;z-index:500;pointer-events:auto;display:flex;align-items:center;justify-content:center;padding:20px;background:linear-gradient(180deg,#aededf,#cdeccb 60%,#b5dfa8)}.webgl-error-card{background:var(--panel);border:2px solid var(--panel-edge);border-radius:18px;box-shadow:var(--shadow-big);max-width:520px;padding:28px 32px;text-align:left}.webgl-error-ico{font-size:44px;display:block;margin-bottom:8px}.webgl-error-title{margin:0 0 10px;font-size:22px;font-weight:850;color:var(--ink)}.webgl-error-text{margin:0 0 10px;color:var(--ink)}.webgl-error-text--soft{color:var(--ink-soft);margin-bottom:0}.webgl-error-list{margin:0 0 12px;padding-left:20px;display:flex;flex-direction:column;gap:6px}@media(max-width:1100px){.bar-btn-label{display:none}.bar-btn{padding:4px 8px}}@media(max-width:860px){.palette{width:204px}.coach--palette{left:228px}.coaster-name{width:clamp(90px,16vw,150px)}}@media(prefers-reduced-motion:reduce){.hud-root *,.modal-backdrop,.modal-backdrop *,.colors-pop *{animation:none!important;transition:none!important}}