/* Mode tabs, mode panels (path, simulation, first person, auto builder). */
.tab{cursor:pointer;border-radius:0;transition:color .15s}
.tab:hover{color:var(--text-2)}
.tab-badge{font-family:var(--mono);font-size:10px;font-weight:700;min-width:18px;height:18px;padding:0 5px;border-radius:9px;display:inline-grid;place-items:center;background:var(--safe-soft);color:var(--safe);border:1px solid rgba(52,195,143,.35)}
.tab-badge.warn{background:var(--warn-soft);color:var(--warn);border-color:rgba(244,181,90,.35)}
.tab-badge.danger{background:var(--danger-soft);color:var(--danger);border-color:rgba(242,100,100,.35)}
[hidden]{display:none!important}

/* Summary stats */
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;margin-bottom:12px}
.stat{background:var(--bg-2);border:1px solid var(--line);border-radius:8px;padding:9px 10px}
.stat small{display:block;font-size:9.5px;color:var(--dim);font-weight:700;letter-spacing:.08em;text-transform:uppercase}
.stat strong{display:block;font-family:var(--mono);font-size:15px;font-weight:650;margin-top:4px}
.stat.bad strong{color:var(--danger)}.stat.good strong{color:var(--safe)}

/* Stop list */
.stops{display:grid;gap:6px;counter-reset:stop}
.stop{display:grid;grid-template-columns:28px 1fr;gap:10px;align-items:start;width:100%;text-align:left;padding:9px 10px;border-radius:9px;background:var(--panel-2);border:1px solid var(--line);color:var(--text-2)}
.stop:hover{border-color:var(--line-3)}
.stop.on{border-color:var(--lime-line);background:linear-gradient(90deg,rgba(184,242,90,.08),transparent)}
.stop-num{width:26px;height:26px;border-radius:50%;display:grid;place-items:center;border:2px solid var(--lime);color:var(--lime);font-family:var(--mono);font-weight:800;font-size:11.5px}
.stop.on .stop-num{background:var(--lime);color:var(--lime-ink)}
.stop b{display:block;font-size:12px;color:var(--text);font-weight:650}
.stop ul{margin:4px 0 0;padding:0;list-style:none;font-size:11px;line-height:1.65;color:var(--muted)}
.stop li::before{content:'';display:inline-block;width:6px;height:6px;border-radius:50%;margin-right:7px;background:#ff8a5c;vertical-align:1px}
.stop li.steel::before{background:#b6ff00}
.stop li.pickup::before{background:#60a5fa;border-radius:1px}

/* Settings rows */
.setting{display:grid;grid-template-columns:1fr 96px;gap:10px;align-items:center;font-size:11.5px;color:var(--text-2);margin-bottom:8px}
.setting input{height:30px;font-family:var(--mono);font-size:12px}
.spinner{display:inline-block;width:10px;height:10px;border-radius:50%;border:2px solid var(--line-3);border-top-color:var(--lime);animation:spin .7s linear infinite;vertical-align:-1px;margin-right:6px}
@keyframes spin{to{transform:rotate(360deg)}}
.check.info{background:rgba(96,165,250,.08);border-color:rgba(96,165,250,.25);color:#b4d3ff}

/* Simulation transport */
.transport{left:50%;bottom:14px;transform:translateX(-50%);display:flex;align-items:center;gap:10px;padding:6px 10px;width:min(620px,calc(100% - 28px))}
.transport .btn{height:30px}
.transport input[type=range]{flex:1;height:30px;padding:0;background:none;border:0;accent-color:var(--lime);box-shadow:none}
.transport .time{font-family:var(--mono);font-size:11.5px;color:var(--text-2);min-width:92px;text-align:right}
.transport select{width:70px;height:30px;font-size:12px}
.caption{position:absolute;z-index:2;left:50%;top:14px;transform:translateX(-50%);padding:8px 14px;font-size:12.5px;font-weight:600;color:var(--text);white-space:nowrap}

/* First person */
#fp{position:absolute;inset:0;width:100%;height:100%;display:block;outline:none;touch-action:none}
#fp-overlay{position:absolute;inset:0;pointer-events:none;z-index:2}
#fp-overlay .crosshair{position:absolute;left:50%;top:50%;width:22px;height:22px;transform:translate(-50%,-50%)}
#fp-overlay .crosshair::before,#fp-overlay .crosshair::after{content:'';position:absolute;background:rgba(184,242,90,.9);box-shadow:0 0 4px rgba(0,0,0,.8)}
#fp-overlay .crosshair::before{left:10px;top:0;width:2px;height:22px}
#fp-overlay .crosshair::after{top:10px;left:0;height:2px;width:22px}
#fp-overlay .fp-hint{position:absolute;left:50%;bottom:16px;transform:translateX(-50%);pointer-events:auto;padding:9px 14px;font-size:12px;color:var(--text-2);display:flex;gap:14px;align-items:center;flex-wrap:wrap;justify-content:center;max-width:calc(100% - 28px)}
#fp-overlay .fp-start{position:absolute;inset:0;display:grid;place-items:center;pointer-events:auto;background:rgba(10,14,19,.45)}
:root[data-theme="light"] #fp-overlay .fp-start{background:rgba(245,248,251,.35)}
#fp-overlay .fp-start>div{padding:22px 26px;text-align:center;max-width:380px}
#fp-overlay .fp-start h3{margin:0 0 8px;font-size:16px}
#fp-overlay .fp-start p{margin:0 0 14px;font-size:12px;color:var(--muted);line-height:1.6}
#fp-overlay .fp-where{position:absolute;left:14px;top:14px;padding:8px 12px;font-family:var(--mono);font-size:11px;color:var(--text-2)}
.fp-error{position:absolute;inset:0;display:grid;place-items:center;color:var(--muted);font-size:13px;padding:30px;text-align:center}

/* Simulation toggles (Loop / Follow): pressed state must be visible, not just announced. */
#sim-bar .btn[aria-pressed="true"]{background:rgba(184,242,90,.12);border-color:rgba(184,242,90,.45);color:var(--lime,#b8f25a)}
.stop small{display:block;color:var(--muted);font-size:11.5px;line-height:1.35;margin-top:2px}

/* Auto builder */
.option-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:12px}
.candidates{display:grid;gap:8px}
.candidate{display:grid;grid-template-columns:96px 1fr;gap:10px;align-items:center;padding:8px;border-radius:10px;background:var(--panel-2);border:1px solid var(--line);text-align:left;width:100%;color:var(--text-2)}
.candidate:hover{border-color:var(--line-3)}
.candidate.on{border-color:var(--lime-line)}
.candidate img{width:96px;height:76px;border-radius:6px;background:#0c1117;border:1px solid var(--line-2);object-fit:contain;display:block}
:root[data-theme="light"] .candidate img{background:#fff}
.candidate b{display:block;font-size:12.5px;color:var(--text)}
.candidate small{display:block;font-size:11px;color:var(--muted);margin-top:3px;line-height:1.5}
.panel-actions{display:flex;gap:6px;margin-top:10px}
.panel-actions .btn{flex:1}

@media (max-width:820px){.transport{bottom:60px}.caption{white-space:normal;width:calc(100% - 28px);text-align:center}}
@media print{#fp,#fp-overlay,.transport{display:none!important}}

/* Design 3D view + ViewCube */
#view3d{position:absolute;inset:0;width:100%;height:100%;display:block;outline:none;touch-action:none;z-index:1;background:#10161e;cursor:grab}
:root[data-theme="light"] #view3d{background:#edf2f6}
#view3d:active{cursor:grabbing}
#view3d[hidden]{display:none}
.viewport.is-3d #plan,.viewport.is-3d .toolbar,.viewport.is-3d .legend{visibility:hidden}
.viewcube{right:62px;top:14px;padding:8px 8px 6px;display:flex;flex-direction:column;align-items:center;gap:6px;user-select:none}
:root[data-theme="light"] .viewcube{color:var(--text)}
.vc-stage{position:relative;width:96px;height:96px;perspective:260px;cursor:grab;touch-action:none}
.vc-stage:active{cursor:grabbing}
.vc-cube{position:absolute;left:14px;top:14px;width:68px;height:68px;transform-style:preserve-3d;transition:transform .05s linear}
.vc-face{position:absolute;inset:0;width:68px;height:68px;display:grid;place-items:center;padding:0;border:1px solid #5a6779;background:rgba(40,52,66,.92);color:#dfe6ee;font:800 9.5px var(--sans);letter-spacing:.06em;backface-visibility:hidden;cursor:pointer}
:root[data-theme="light"] .vc-face{background:rgba(255,255,255,.94);border-color:#aab8c7;color:#263545}
.vc-face:hover{background:rgba(184,242,90,.28);color:#fff;border-color:var(--lime)}
:root[data-theme="light"] .vc-face:hover{background:rgba(201,232,153,.96);color:#172106;border-color:var(--lime)}
.vc-top{transform:rotateX(90deg) translateZ(34px)}
.vc-bottom{transform:rotateX(-90deg) translateZ(34px)}
.vc-front{transform:translateZ(34px)}
.vc-back{transform:rotateY(180deg) translateZ(34px)}
.vc-right{transform:rotateY(90deg) translateZ(34px)}
.vc-left{transform:rotateY(-90deg) translateZ(34px)}
.viewcube:not(.is-3d) .vc-top{background:rgba(184,242,90,.2);border-color:var(--lime-line)}
.vc-compass{position:absolute;left:4px;top:4px;width:88px;height:88px;border:1px dashed rgba(143,193,255,.35);border-radius:50%;pointer-events:none;transform-style:preserve-3d}
.vc-compass span{position:absolute;left:50%;transform:translateX(-50%);font:700 6.5px var(--sans);letter-spacing:.08em;color:#8fc1ff}
:root[data-theme="light"] .vc-compass span{color:#315e91}
.vc-compass .vc-n{top:-9px}.vc-compass .vc-s{bottom:-9px}
.vc-bar{display:flex;gap:4px}
.vc-bar .btn{height:22px;padding:0 8px;font-size:10.5px}
.viewcube.is-3d .vc-bar .btn:last-child,.viewcube:not(.is-3d) .vc-bar .btn:first-child{background:var(--lime-soft);border-color:var(--lime-line);color:var(--lime)}
@media (max-width:820px){.viewcube{right:10px;top:60px;transform:scale(.8);transform-origin:top right}}

/* Print sheet */
.print-sheet{position:fixed;inset:0;z-index:40;display:flex;flex-direction:column;background:#0b1016}
.print-sheet[hidden]{display:none}
.ps-head{display:flex;align-items:center;gap:10px;padding:10px 14px;border-bottom:1px solid var(--line);background:var(--panel);flex-wrap:wrap}
.ps-head>b{font-size:13px;margin-right:6px}
.ps-tools{display:flex;align-items:center;gap:4px;flex-wrap:wrap}
.ps-tools .btn.active{background:var(--lime-soft);border-color:var(--lime-line);color:var(--lime)}
.ps-spacer{flex:1}
.ps-orient{display:flex;align-items:center;gap:4px}
.ps-orient .btn.active{background:var(--lime-soft);border-color:var(--lime-line);color:var(--lime)}
.ps-a4{font-size:11px;font-weight:800;color:var(--muted);letter-spacing:.06em;margin-right:2px}
.ps-colors{display:flex;gap:4px;margin-left:8px}
.ps-swatch{width:18px;height:18px;border-radius:50%;border:2px solid transparent;padding:0;cursor:pointer}
.ps-swatch.on{border-color:#fff;box-shadow:0 0 0 1px #000}
.ps-body{flex:1;min-height:0;display:grid;grid-template-columns:minmax(0,1fr) 290px}
.ps-paper{display:grid;place-items:center;overflow:hidden;background:#1a2330}
:root[data-theme="light"] .ps-paper{background:#dfe6ed}
.print-sheet{background:#0b1016}
:root[data-theme="light"] .print-sheet{background:#edf2f6}
.ps-canvas{background:#fff;box-shadow:0 12px 40px rgba(0,0,0,.5);outline:none;touch-action:none}
.ps-side{background:var(--panel);border-left:1px solid var(--line);overflow-y:auto;padding:12px 14px;font-size:12px}
.ps-side section{padding:10px 0;border-bottom:1px solid var(--line)}
.ps-side h4{margin:0 0 8px;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.ps-row{display:flex;align-items:center;gap:8px;padding:3px 0;color:var(--text-2)}
.ps-row.sel{color:var(--lime)}
.ps-row input[type=checkbox]{accent-color:var(--lime)}
.ps-name{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;background:none;border:0;color:inherit;text-align:left;padding:0;font:inherit;cursor:pointer}
.ps-eye,.ps-del{width:24px;height:22px;border-radius:5px;border:1px solid var(--line-2);background:var(--panel-2);color:var(--text-2);padding:0;font-size:12px;cursor:pointer;flex-shrink:0}
.ps-eye.off{opacity:.55;color:var(--dim)}
.ps-del:hover{border-color:var(--danger);color:var(--danger)}
.ps-hint{color:var(--muted);font-size:11px;line-height:1.5;margin:0 0 6px}
.ps-edit .field{display:grid;gap:4px;margin-bottom:8px}
.ps-edit textarea{width:100%;resize:vertical;font:inherit;background:var(--bg-2);color:var(--text);border:1px solid var(--line-2);border-radius:6px;padding:6px}
.print-output{display:none}
@media (max-width:900px){.ps-body{grid-template-columns:1fr;grid-template-rows:minmax(300px,1fr) auto}.ps-side{border-left:0;border-top:1px solid var(--line);max-height:40vh}}
@media print{
  @page{size:A4 portrait;margin:0}
  body.printing-sheet>*:not(.print-output){display:none!important}
  body.printing-sheet .print-output{display:block!important}
  body.printing-sheet .print-output img{width:210mm;height:296mm;object-fit:contain;display:block}
  #view3d,.viewcube{display:none!important}
}
.ps-row input[type=checkbox]{width:15px;height:15px;min-width:15px;padding:0;margin:0;flex:none;appearance:auto;-webkit-appearance:checkbox;box-shadow:none}
.ps-row>span{flex:1;text-align:left}