:root{
  --bg:#EDE8DD; --ink:#211D17; --ink-2:#5C554A; --ink-3:#8C8475;
  --line:#211D17; --line-soft:#C9C0AE; --card:#F7F3EA;
  --accent:#B4471F; --accent-ink:#8F371A; --live:#2E6F4F;
  --soft:#FCEFE6;
  /* tyre-compound / corner colours, tuned for the cream surface */
  --c-fl:#B4471F; --c-fr:#B07A12; --c-rl:#2E5FA3; --c-rr:#2E6F4F;
  --c-jack:#5C554A; --c-go:#C0392B;
}
*{box-sizing:border-box;margin:0;padding:0;}
body{background:var(--bg);color:var(--ink);font-family:'Plus Jakarta Sans',system-ui,sans-serif;line-height:1.5;min-height:100dvh;-webkit-font-smoothing:antialiased;}
.wrap{width:100%;max-width:860px;margin:0 auto;padding:0 24px 72px;}

.visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

.toprule{max-width:860px;margin:0 auto;padding:20px 24px;display:flex;justify-content:space-between;align-items:center;border-bottom:1.5px solid var(--line);}
.toprule .name{font-size:13px;font-weight:700;letter-spacing:0.02em;text-decoration:none;color:var(--ink);}
.toprule .back{font-size:12px;color:var(--ink-2);font-weight:600;text-decoration:none;border-bottom:1.5px solid transparent;transition:border-color .15s,color .15s;}
.toprule .back:hover{color:var(--accent);border-color:var(--accent);}

.intro{padding:44px 0 28px;max-width:560px;}
.eyebrow{font-family:'Newsreader',serif;font-style:italic;font-size:17px;color:var(--accent);margin-bottom:14px;}
h1{font-size:clamp(34px,7vw,52px);font-weight:800;letter-spacing:-0.04em;line-height:0.98;margin-bottom:16px;}
.lede{font-family:'Newsreader',serif;font-size:clamp(16px,2.4vw,18px);line-height:1.5;color:var(--ink-2);max-width:520px;}

/* ===== Stage / canvas ===== */
.stage{position:relative;border:1.5px solid var(--line);background:var(--card);overflow:hidden;}
#scene{display:block;width:100%;height:clamp(260px,42vw,400px);touch-action:none;}
.hud{position:absolute;left:0;right:0;bottom:0;display:flex;justify-content:space-between;align-items:flex-end;gap:12px;padding:12px 14px;background:linear-gradient(to top,rgba(33,29,23,.55),rgba(33,29,23,0));color:#F7F3EA;pointer-events:none;flex-wrap:wrap;}
.hud-mode{font-weight:800;font-size:14px;letter-spacing:.02em;text-shadow:0 1px 2px rgba(0,0,0,.4);}
.hud-times{display:flex;align-items:center;gap:14px;font-size:13px;font-weight:600;text-shadow:0 1px 2px rgba(0,0,0,.4);}
.hud-par{color:#EDE8DD;opacity:.85;}
.hud-gap{color:#F6C6BC;}
.hud-readout.over{color:#FF8A78;font-weight:800;}
.stars{font-size:16px;letter-spacing:1px;color:#F4C453;}

/* ===== Panel ===== */
.panel{border:1.5px solid var(--line);border-top:none;background:var(--card);padding:22px;}
.panel-head{margin-bottom:18px;}
.panel h2{font-size:20px;font-weight:800;letter-spacing:-0.02em;margin-bottom:6px;}
.panel-sub{font-size:13px;color:var(--ink-2);max-width:620px;}

.toolbar{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:22px;padding-bottom:18px;border-bottom:1.5px solid var(--line-soft);}
.toolbar-gap{flex:1;min-width:0;}

.btn{background:none;border:1.5px solid var(--line);padding:9px 14px;font-family:inherit;font-size:13px;font-weight:600;color:var(--ink-2);cursor:pointer;transition:background .15s,color .15s,border-color .15s;}
.btn:hover{background:var(--bg);color:var(--accent-ink);border-color:var(--accent-ink);}
.btn:focus-visible{outline:2.5px solid var(--accent);outline-offset:2px;}
.btn-primary{background:var(--accent);color:var(--bg);border-color:var(--line);font-weight:700;letter-spacing:.02em;text-transform:uppercase;}
.btn-primary:hover{background:var(--accent-ink);color:var(--bg);}
.btn-primary:disabled{background:var(--line-soft);color:var(--ink-3);cursor:not-allowed;}
.btn-icon{padding:9px 12px;font-size:15px;line-height:1;}
.btn[aria-pressed="true"]{background:var(--ink);color:var(--card);border-color:var(--line);}

.block-label{font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-3);margin-bottom:10px;}
.block-note{text-transform:none;letter-spacing:0;font-weight:500;font-family:'Newsreader',serif;font-style:italic;color:var(--ink-3);}

/* ===== Tray ===== */
.tray-wrap{margin-bottom:22px;}
.tray{display:flex;flex-wrap:wrap;gap:8px;min-height:42px;}
.chip{display:inline-flex;align-items:center;gap:8px;border:1.5px solid var(--line);background:var(--bg);padding:8px 12px;font-family:inherit;font-size:13px;font-weight:600;color:var(--ink);cursor:pointer;transition:transform .1s,box-shadow .15s,background .15s;}
.chip:hover{background:var(--soft);}
.chip:focus-visible{outline:2.5px solid var(--accent);outline-offset:2px;}
.chip.selected{box-shadow:inset 0 0 0 2px var(--accent);background:var(--soft);}
.chip .dot{width:11px;height:11px;border-radius:50%;flex-shrink:0;border:1.5px solid rgba(0,0,0,.25);}
.chip .ctag{font-size:9px;font-weight:800;letter-spacing:.04em;color:var(--ink);background:var(--card);border:1.5px solid var(--line-soft);padding:1px 4px;}
.chip .dur{font-size:11px;color:var(--ink-3);font-weight:700;}

/* ===== Lanes / timeline ===== */
.lanes-wrap{margin-bottom:8px;}
.timeaxis{position:relative;height:16px;margin-left:118px;border-bottom:1.5px solid var(--line-soft);}
.tick{position:absolute;top:0;bottom:0;border-left:1px solid var(--line-soft);}
.tick span{position:absolute;top:1px;left:3px;font-size:9px;color:var(--ink-3);font-weight:600;}
.parline{position:absolute;top:0;bottom:0;border-left:2px dashed var(--accent);z-index:3;}
.parline span{position:absolute;top:1px;left:4px;font-size:9px;color:var(--accent-ink);font-weight:700;white-space:nowrap;}
.limitline{position:absolute;top:0;bottom:0;border-left:2px dashed var(--c-go,#C0392B);z-index:3;}
.limitline span{position:absolute;top:1px;left:4px;font-size:9px;color:#C0392B;font-weight:700;white-space:nowrap;}

.lanes{display:flex;flex-direction:column;gap:8px;}
.lane{display:flex;align-items:stretch;gap:0;min-height:48px;}
.lane-label{width:118px;flex-shrink:0;display:flex;flex-direction:column;justify-content:center;gap:1px;font-size:11px;font-weight:700;color:var(--ink-2);padding-right:8px;}
.lane-name{font-size:11.5px;font-weight:800;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.lane-cap{font-size:9.5px;font-weight:600;color:var(--ink-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;text-transform:uppercase;letter-spacing:.02em;}
.lane-add{font-size:10px;font-weight:600;color:var(--accent-ink);background:none;border:1.5px solid var(--line-soft);padding:2px 4px;margin-top:3px;cursor:pointer;font-family:inherit;}
.lane-add:hover{border-color:var(--accent);background:var(--soft);}
.lane-add:disabled{color:var(--ink-3);border-color:var(--line-soft);cursor:not-allowed;opacity:.6;}
.lane-track{position:relative;flex:1;border:1.5px solid var(--line-soft);background:var(--bg);min-width:0;overflow:hidden;}
.lane-track.drop-ok{border-color:var(--accent);background:var(--soft);}
.lane-track.forbidden{opacity:.45;}

.bar{position:absolute;top:3px;bottom:3px;border:1.5px solid rgba(33,29,23,.6);display:flex;flex-direction:column;justify-content:center;padding:0 6px;color:#fff;font-size:11px;font-weight:700;overflow:hidden;cursor:grab;min-width:18px;}
.bar:focus-visible{outline:2.5px solid var(--ink);outline-offset:1px;}
.bar.blocked{background-image:repeating-linear-gradient(45deg,rgba(0,0,0,.18) 0 5px,transparent 5px 10px);}
.bar .bar-name{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;text-shadow:0 1px 1px rgba(0,0,0,.35);}
.bar .bar-ctl{display:flex;gap:2px;margin-top:1px;}
.bar .bar-ctl button{font-size:10px;line-height:1;width:16px;height:14px;padding:0;border:1px solid rgba(255,255,255,.55);background:rgba(0,0,0,.18);color:#fff;cursor:pointer;border-radius:2px;}
.bar .bar-ctl button:hover{background:rgba(0,0,0,.4);}
.bar.running{animation:pulse .6s ease-in-out infinite alternate;}
@keyframes pulse{from{filter:brightness(1);}to{filter:brightness(1.35);}}

/* ===== Engineer tips ===== */
.tips{border:1.5px solid var(--accent);background:var(--soft);padding:14px 16px;margin-bottom:20px;}
.tips[hidden]{display:none;}
.tips .block-label{color:var(--accent-ink);margin-bottom:8px;}
.tips p{font-size:13px;color:var(--ink-2);margin-bottom:7px;}
.tips p:last-child{margin-bottom:0;font-weight:700;color:var(--ink);}

/* ===== Selected-job move controls ===== */
.bar-actions{margin-top:12px;padding-bottom:0;border-bottom:none;}
.bar-actions-note{font-size:12px;color:var(--ink-3);align-self:center;margin-right:4px;font-weight:600;}

/* ===== Schedule text ===== */
.schedule{margin-top:18px;border-top:1.5px solid var(--line-soft);padding-top:12px;}
.schedule summary{font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-3);cursor:pointer;}
.schedule-list{margin:12px 0 0 20px;font-size:13px;color:var(--ink-2);display:flex;flex-direction:column;gap:4px;}

.empty-hint{text-align:center;padding:.6rem 0;color:var(--ink-3);font-size:13px;font-family:'Newsreader',serif;font-style:italic;display:none;}
.empty-hint.show{display:block;}

footer{margin-top:40px;padding-top:24px;border-top:1.5px solid var(--line);font-size:13px;color:var(--ink-3);display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;}
footer a{color:var(--ink-2);text-decoration:none;font-weight:600;border-bottom:1.5px solid transparent;transition:border-color .15s,color .15s;}
footer a:hover{color:var(--accent);border-color:var(--accent);}

/* ===== Overlays ===== */
.overlay{position:fixed;inset:0;background:rgba(33,29,23,.55);display:flex;align-items:center;justify-content:center;padding:24px;z-index:50;overflow-y:auto;}
.overlay[hidden]{display:none;}
.overlay-card{background:var(--card);border:1.5px solid var(--line);max-width:460px;width:100%;max-height:calc(100dvh - 48px);overflow-y:auto;padding:28px;box-shadow:0 18px 50px rgba(0,0,0,.25);}
.overlay-card h2{font-size:24px;font-weight:800;letter-spacing:-0.02em;margin-bottom:14px;}
.overlay-card p{font-size:14px;color:var(--ink-2);margin-bottom:12px;}
.overlay-card ul{margin:0 0 14px 20px;font-size:14px;color:var(--ink-2);display:flex;flex-direction:column;gap:8px;}
.overlay-card strong{color:var(--ink);}
.overlay-card em{font-style:italic;color:var(--accent-ink);}
.overlay-note{font-family:'Newsreader',serif;font-style:italic;font-size:13px;color:var(--ink-3);}
.overlay-actions{display:flex;gap:10px;margin-top:8px;}
.overlay-actions .btn{flex:1;text-align:center;}
.win-stars{font-size:46px;letter-spacing:6px;color:#F4C453;text-align:center;margin-bottom:6px;}
.win-stars .off{color:var(--line-soft);}
.win-time{font-size:30px;font-weight:800;text-align:center;color:var(--ink);margin-bottom:6px;}
.win-msg{text-align:center;font-family:'Newsreader',serif;font-style:italic;font-size:15px;}

@media(max-width:560px){
  .intro{padding:36px 0 24px;}
  .panel{padding:18px;}
  .lane-label{width:96px;}
  .timeaxis{margin-left:96px;}
  .toolbar-gap{display:none;}
}
@media (prefers-reduced-motion:reduce){
  .bar.running{animation:none;}
}