:root{--bgA:#eef5f3;--bgB:#f4f2ec;--panel:#ffffffeb;--ink:#24343b;--mute:#62747b;--line:#dce6e3;--soft:#f3f7f6;
--elastic:#4f8fbf;--yield:#e2ab4f;--neck:#de8a5e;--break:#cf6464;--pink:#c9708e;--teal:#3f9e8f;--ok:#2f8a6a;--warn:#a8741f;--bad:#bf4f52;--acc:#3f9e8f;color-scheme:light}
@media (prefers-color-scheme:dark){:root{--bgA:#152024;--bgB:#1b2226;--panel:#1f2a2eeb;--ink:#e3ecea;--mute:#9db0b0;--line:#33454a;--soft:#243236;
--elastic:#77abd6;--yield:#e8bf6e;--neck:#e9a07a;--break:#e08585;--pink:#e095ad;--teal:#5fbfae;--ok:#6fcca5;--warn:#e8bf6e;--bad:#e88a8c;--acc:#5fbfae;color-scheme:dark}}
*{box-sizing:border-box}
body{margin:0;color:var(--ink);font:400 16px/1.5 Archivo,system-ui,Arial,sans-serif;background:linear-gradient(170deg,var(--bgA),var(--bgB)) fixed;min-height:100vh}
main{max-width:1060px;margin:0 auto;padding:22px 16px 120px}
h1{font-size:clamp(28px,5vw,40px);line-height:1.05;margin:0 0 6px;font-weight:800;letter-spacing:-.01em}
h2{font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--mute);margin:0 0 10px}
h2 label{font-size:inherit;color:inherit}
.lead{color:var(--mute);margin:0;max-width:60ch}
[hidden]{display:none!important}

/* header */
.head{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;flex-wrap:wrap;margin-bottom:18px}
.head .lead{max-width:none}
.who{display:flex;align-items:center;gap:12px;color:var(--mute)}
.who b{color:var(--ink)}

/* status bar: rounds, score, timer */
.status{position:sticky;top:8px;z-index:5;display:flex;align-items:center;justify-content:space-between;gap:12px 24px;flex-wrap:wrap;
  background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:10px 14px 10px 18px;margin-bottom:16px;box-shadow:0 6px 20px rgba(36,52,59,.07);backdrop-filter:blur(6px)}
.rounds{display:flex;align-items:center;gap:12px;font-weight:600}
.dots{display:flex;gap:6px;list-style:none;margin:0;padding:0}
.dots li{width:12px;height:12px;border-radius:50%;background:var(--line)}
.dots li.now{background:var(--teal);box-shadow:0 0 0 3px color-mix(in srgb,var(--teal) 25%,transparent)}
.dots li.good{background:var(--ok)}.dots li.mid{background:var(--yield)}.dots li.bad{background:var(--break)}
.mid{display:flex;align-items:center;gap:18px;flex-wrap:wrap;color:var(--mute)}
.mid b{color:var(--ink);font-size:18px;font-variant-numeric:tabular-nums}
.timer{display:flex;align-items:center;gap:8px;margin-left:auto}
.timer svg{width:46px;height:46px;transform:rotate(-90deg)}
.timer circle{fill:none;stroke-width:4}
.timer .trk{stroke:var(--line)}
.timer .ring{stroke:var(--teal);stroke-linecap:round;stroke-dasharray:100;stroke-dashoffset:0;transition:stroke-dashoffset .1s linear,stroke .3s}
.timer b{display:block;font-size:24px;line-height:1;font-variant-numeric:tabular-nums}
.timer small{color:var(--mute);font-size:12px}
.timer.low .ring{stroke:var(--break)}.timer.low b{color:var(--bad)}

/* game layout */
.layout{display:grid;grid-template-columns:1fr 1.15fr;gap:16px;align-items:start}
.col{display:grid;gap:16px}
@media (max-width:860px){.layout{grid-template-columns:1fr}}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:16px 18px;box-shadow:0 6px 20px rgba(36,52,59,.06)}
#rp{margin-top:16px;border-left:5px solid var(--c,var(--line))}
#rp.win{--c:var(--ok)}#rp.mid{--c:var(--yield)}#rp.lose{--c:var(--break)}#rp.final{--c:var(--teal)}
.task{font-size:22px;font-weight:800;margin:0 0 12px}
.facts{color:var(--mute);margin:10px 0 0}
#hint{background:var(--soft);border-radius:10px;padding:8px 12px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
@media (max-width:420px){.grid{grid-template-columns:repeat(2,1fr)}}
.grid div{background:var(--soft);border-radius:10px;padding:7px 10px;color:var(--mute);font-size:13px}
.grid b{display:block;color:var(--ink);font-size:17px}
.grid div:first-child{box-shadow:inset 3px 0 0 var(--teal)}
canvas{width:100%;display:block}
#bar{height:100px}#plot{height:280px}
input[type=range]{width:100%;accent-color:var(--teal);margin:8px 0 12px}
input[type=number],.start input{font:inherit;width:120px;padding:7px 9px;border-radius:9px;border:1px solid var(--line);background:var(--panel);color:var(--ink)}
select{font:inherit;padding:5px 7px;border-radius:8px;border:1px solid var(--line);background:var(--panel);color:var(--ink)}
.row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.btns{margin-top:14px}
button{font:inherit;font-weight:600;border-radius:10px;border:1px solid var(--line);background:var(--panel);color:var(--ink);padding:10px 15px;cursor:pointer}
button.main,button.go{background:var(--teal);border-color:transparent;color:#fff}
button.go{margin-left:auto;padding:10px 26px}
button:disabled{opacity:.45;cursor:not-allowed}
button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid color-mix(in srgb,var(--teal) 55%,transparent);outline-offset:2px}
.read{display:flex;gap:28px;flex-wrap:wrap;margin:8px 0 4px;color:var(--mute);font-size:14px}
.read b{display:block;font-size:22px;color:var(--ink);font-variant-numeric:tabular-nums}
.read b.ok{color:var(--ok)}.read b.warn{color:var(--warn)}.read b.neck{color:var(--neck)}.read b.bad{color:var(--bad)}
.state{font-weight:800}
.chips{display:flex;gap:6px;flex-wrap:wrap;margin-top:8px}
.chips span{font-size:12px;color:var(--mute);padding:1px 10px 1px 8px;border-radius:99px;background:var(--soft);display:inline-flex;align-items:center;gap:6px}
.chips span::before{content:"";width:9px;height:9px;border-radius:50%;background:var(--c)}
#result{white-space:pre-line;margin-top:0}
#rp.final #result{font-size:15px;line-height:1.75}
label{color:var(--mute);font-size:14px}
.spot{outline:3px solid var(--teal);outline-offset:5px;border-radius:16px}

/* start screen */
.start{position:fixed;inset:0;z-index:20;display:grid;place-items:center;padding:16px;background:color-mix(in srgb,var(--bgA) 70%,transparent);backdrop-filter:blur(8px);overflow:auto}
.start-card{width:min(100%,560px);background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:26px 26px 22px;box-shadow:0 20px 50px rgba(36,52,59,.15)}
.kicker{margin:0 0 4px;color:var(--teal);font-weight:600;font-size:14px}
.how{margin:14px 0 18px;padding:0;list-style:none;counter-reset:s;display:grid;gap:10px}
.how li{counter-increment:s;position:relative;padding-left:36px;color:var(--mute);font-size:15px}
.how li::before{content:counter(s);position:absolute;left:0;top:0;width:24px;height:24px;border-radius:50%;background:var(--soft);color:var(--teal);font-weight:800;font-size:13px;display:grid;place-items:center}
.how b{color:var(--ink)}
.start-form{display:flex;flex-wrap:wrap;align-items:flex-end;gap:12px;border-top:1px solid var(--line);padding-top:16px}
.start-form label{display:grid;gap:4px}
.start-form input{width:200px}
.start-form button{margin-left:auto}

/* fine-tune buttons and score pop */
.nudge{display:inline-flex;gap:4px}
.nudge button{padding:6px 12px;min-width:38px}
.sc{position:relative}
#gain{position:absolute;right:0;bottom:100%;font-style:normal;font-weight:800;font-size:14px;color:var(--ok);opacity:0;pointer-events:none}
#gain.show{animation:gain 1.6s ease-out}
@keyframes gain{0%{opacity:0;transform:translateY(6px)}15%{opacity:1;transform:none}75%{opacity:1}100%{opacity:0;transform:translateY(-8px)}}
@media (prefers-reduced-motion:reduce){#gain.show{animation:none}}

/* final results window */
.end-card{width:min(100%,640px)}
.big{display:flex;align-items:baseline;flex-wrap:wrap;gap:4px 10px;margin:10px 0 8px}
.big b{font-size:48px;line-height:1;font-weight:800;color:var(--teal);font-variant-numeric:tabular-nums}
.big span{color:var(--mute)}
.big em{font-style:normal;margin-left:auto;font-size:14px;color:var(--mute)}
.big em.best-new{color:var(--ok);font-weight:600}
.meter{height:8px;border-radius:99px;background:var(--line);overflow:hidden;margin-bottom:14px}
.meter i{display:block;height:100%;width:0;background:var(--teal);border-radius:inherit;transition:width .8s ease-out}
.tbl{overflow-x:auto;margin:14px 0 16px;border:1px solid var(--line);border-radius:12px}
.tbl table{width:100%;border-collapse:collapse;font-size:14px}
.tbl th,.tbl td{padding:7px 10px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap}
.tbl th{font-size:12px;font-weight:600;color:var(--mute);background:var(--soft)}
.tbl .n{text-align:right;font-variant-numeric:tabular-nums}
.tbl tfoot td{border-bottom:0;font-weight:600}
.tbl .dot{display:inline-block;width:9px;height:9px;border-radius:50%;margin-right:7px;background:var(--line)}
.tbl .dot.good{background:var(--ok)}.tbl .dot.mid{background:var(--yield)}.tbl .dot.bad{background:var(--break)}
.end-btns{justify-content:flex-end}

/* tour */
.tour{position:fixed;left:50%;bottom:calc(14px + env(safe-area-inset-bottom,0px));transform:translateX(-50%);width:min(92vw,520px);background:var(--ink);color:var(--bgA);border-radius:14px;padding:14px 16px;box-shadow:0 10px 30px rgba(0,0,0,.25);z-index:10}
.tour p{margin:0 0 10px}.tour span{margin-right:auto;font-size:13px;opacity:.8}
.tour button{padding:6px 12px}
@media (prefers-color-scheme:dark){.tour{background:#e3ecea;color:#24343b}}
@media (prefers-reduced-motion:no-preference){button{transition:filter .15s,transform .15s}button:hover:not(:disabled){filter:brightness(1.06);transform:translateY(-1px)}
.panel,.status{transition:border-color .3s}}
@media (max-width:560px){.status{top:4px;padding:8px 12px;display:grid;grid-template-columns:1fr auto;gap:4px 10px}
.rounds{grid-column:1;grid-row:1}.timer{grid-column:2;grid-row:1}.mid{grid-column:1/-1;grid-row:2;gap:12px;font-size:14px}
.mid b{font-size:16px}.nr,.timer small{display:none}.timer svg{width:36px;height:36px}.timer b{font-size:20px}.start-card{padding:20px 18px}.start-form input{width:100%}.start-form label{flex:1 1 100%}}