/* Layout: a single instrument panel as the hero, with a tab rail beneath for library, procedures, records and guide. */
:root{
  --bg:#e6e9ec; --panel:#f4f6f7; --panel-2:#dde2e6; --ink:#1d262d; --muted:#5b6872; --line:#b7c0c7;
  --accent:#0f5e66; --accent-2:#0b4950; --accent-soft:#d3e6e7; --brass:#8a6a2c;
  --knob:#22282d; --knob-hi:#4a535a; --knob-face:#f7f8f8;
  --ok:#2c7a3f; --ok-soft:#dcefe0; --warn:#a0640c; --warn-soft:#f6e7cc; --bad:#a3322a; --bad-soft:#f4dcd9;
  --f-display:"Marcellus SC","Cormorant SC",Georgia,serif;
  --f-body:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --f-mono:"IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace;
  --r:10px;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --bg:#12171b; --panel:#1b2228; --panel-2:#232c33; --ink:#e3e8eb; --muted:#93a0a9; --line:#36424b;
  --accent:#5fb7bd; --accent-2:#86cdd2; --accent-soft:#183539; --brass:#c9a35a;
  --knob:#0b0e10; --knob-hi:#3a434a; --knob-face:#2a333a;
  --ok:#6cc082; --ok-soft:#173523; --warn:#e0a54a; --warn-soft:#3a2b12; --bad:#ec8b82; --bad-soft:#3c1c19;
  color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#12171b; --panel:#1b2228; --panel-2:#232c33; --ink:#e3e8eb; --muted:#93a0a9; --line:#36424b;
  --accent:#5fb7bd; --accent-2:#86cdd2; --accent-soft:#183539; --brass:#c9a35a;
  --knob:#0b0e10; --knob-hi:#3a434a; --knob-face:#2a333a;
  --ok:#6cc082; --ok-soft:#173523; --warn:#e0a54a; --warn-soft:#3a2b12; --bad:#ec8b82; --bad-soft:#3c1c19;
  color-scheme:dark}
*{box-sizing:border-box}
html{color-scheme:light}
body{margin:0}
[hidden]{display:none!important}
img{max-width:100%}
body{background:var(--bg);color:var(--ink);font-family:var(--f-body);font-size:15px;line-height:1.5}
.wrap{max-width:1180px;margin:0 auto;padding-inline:16px;padding-block:20px 48px}
h1,h2,h3{font-family:var(--f-display);font-weight:400;text-wrap:balance;margin:0;letter-spacing:.02em}
h1{font-size:1.9rem}h2{font-size:1.4rem}h3{font-size:1.1rem}
p{margin:0}
.mono{font-family:var(--f-mono);font-variant-numeric:tabular-nums}
.muted{color:var(--muted)}
.small{font-size:.85rem}
.eng{font-family:var(--f-display);letter-spacing:.12em;font-size:.78rem;color:var(--muted);text-transform:uppercase}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.btn{border:1px solid var(--line);background:var(--panel);border-radius:8px;padding:.45rem .85rem;display:inline-flex;align-items:center;gap:.4rem;min-height:38px}
.btn:hover{border-color:var(--accent)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--panel)}
.btn.primary:hover{background:var(--accent-2)}
.btn.danger{color:var(--bad);border-color:var(--bad)}
.btn.ghost{background:transparent}
.btn[disabled]{opacity:.5;cursor:not-allowed}
input[type=text],input[type=number],input[type=search],input[type=email],input[type=password],select,textarea{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:.45rem .6rem;min-height:38px;width:100%}
textarea{min-height:140px;font-family:var(--f-mono);font-size:.85rem}
label.f{display:grid;gap:.25rem;font-size:.85rem;color:var(--muted)}
label.f>span{font-weight:500}
.row{display:flex;gap:.6rem;flex-wrap:wrap;align-items:center}
.grid2{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:.8rem}
.chip{display:inline-flex;align-items:center;gap:.3rem;border-radius:999px;padding:.1rem .6rem;font-size:.78rem;border:1px solid var(--line);background:var(--panel-2);white-space:nowrap}
.chip.ok{background:var(--ok-soft);color:var(--ok);border-color:transparent}
.chip.warn{background:var(--warn-soft);color:var(--warn);border-color:transparent}
.chip.bad{background:var(--bad-soft);color:var(--bad);border-color:transparent}
.chip.acc{background:var(--accent-soft);color:var(--accent);border-color:transparent}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:1rem}
.stack{display:grid;gap:.8rem}
.tbl-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r)}
table{border-collapse:collapse;width:100%;font-size:.88rem}
th,td{text-align:left;padding:.45rem .6rem;border-bottom:1px solid var(--line);vertical-align:top}
th{font-weight:600;background:var(--panel-2);font-size:.8rem}
tr:last-child td{border-bottom:none}
.empty{border:1px dashed var(--line);border-radius:var(--r);padding:1.2rem;text-align:center;color:var(--muted);display:grid;gap:.6rem;justify-items:center}

/* header */
header.top{display:flex;justify-content:space-between;align-items:flex-end;gap:1rem;flex-wrap:wrap;margin-bottom:1rem}
.brand small{display:block;color:var(--muted);font-size:.85rem}
.status{font-size:.8rem}

/* instrument */
.machine{background:linear-gradient(160deg,var(--panel) 0%,var(--panel-2) 100%);border:1px solid var(--line);border-radius:18px;padding:18px;box-shadow:0 1px 0 var(--knob-face) inset,0 10px 30px -18px rgba(0,0,0,.45);display:grid;gap:18px;grid-template-columns:1fr 1.05fr 1fr;grid-template-areas:"out pyr in" "mat mat side"}
.zone{display:grid;justify-items:center;gap:6px;min-width:0}
.z-out{grid-area:out}.z-in{grid-area:in}.z-pyr{grid-area:pyr}.z-mat{grid-area:mat}.z-side{grid-area:side}
.plate{width:min(170px,100%);aspect-ratio:1;position:relative;border:none;background:none;padding:0}
.plate svg{width:100%;height:100%;display:block}
.plate .content{position:absolute;inset:auto 0 -4px 0;display:flex;justify-content:center}
.plate-chip{background:var(--panel);border:1px solid var(--line);border-radius:999px;padding:.1rem .6rem;font-size:.78rem;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.plate-chip.on{background:var(--accent);color:var(--panel);border-color:var(--accent)}
.pyr{width:min(150px,100%);aspect-ratio:1}
.matrix{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px 8px;width:100%;max-width:520px}
.dialw{display:grid;justify-items:center;gap:2px}
.dial{width:100%;max-width:74px;aspect-ratio:1;border:none;background:none;padding:0;border-radius:50%;touch-action:manipulation}
.dial svg{width:100%;height:100%;display:block}
.dial-n{font-size:.68rem;color:var(--muted)}
.side{display:grid;gap:12px;width:100%;justify-items:center;grid-template-columns:1fr 1fr;align-items:start}
.bigknob{display:grid;justify-items:center;gap:4px;width:100%}
.bigknob svg{width:min(120px,100%);aspect-ratio:1;display:block;touch-action:none;cursor:grab}
.bigknob input[type=range]{width:100%;max-width:140px;accent-color:var(--accent)}
.bigknob .val{font-family:var(--f-mono);font-size:1.1rem}
.stickpad{grid-column:1/-1;width:100%;max-width:300px;border:none;background:none;padding:0}
.stickpad svg{width:100%;height:auto;display:block}
.readout{display:flex;flex-wrap:wrap;gap:.6rem 1.2rem;align-items:center;justify-content:space-between;margin-top:12px}
.rows3{font-family:var(--f-mono);font-size:.95rem;line-height:1.25;letter-spacing:.18em;background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:.35rem .7rem}
.rate-entry{display:flex;gap:.5rem;flex-wrap:wrap;align-items:center}
.rate-entry input{width:min(220px,100%);font-family:var(--f-mono);letter-spacing:.08em}
.search-pop{position:relative;flex:1 1 260px;min-width:0}
.results{position:absolute;z-index:5;left:0;right:0;top:calc(100% + 4px);background:var(--panel);border:1px solid var(--line);border-radius:8px;max-height:260px;overflow:auto;box-shadow:0 12px 30px -16px rgba(0,0,0,.5)}
.results button{display:flex;justify-content:space-between;gap:.6rem;width:100%;text-align:left;border:none;background:none;padding:.45rem .6rem;border-bottom:1px solid var(--line)}
.results button:hover,.results button:focus{background:var(--accent-soft)}

/* tabs */
nav.tabs{display:flex;gap:4px;margin:22px 0 14px;border-bottom:1px solid var(--line);overflow-x:auto}
nav.tabs button{border:none;background:none;padding:.6rem .9rem;border-bottom:2px solid transparent;font-family:var(--f-display);letter-spacing:.08em;white-space:nowrap;color:var(--muted)}
nav.tabs button[aria-selected=true]{color:var(--ink);border-bottom-color:var(--accent)}

.split{display:grid;grid-template-columns:260px minmax(0,1fr);gap:16px;align-items:start}
.proclist{display:grid;gap:6px}
.proclist button{text-align:left;border:1px solid var(--line);background:var(--panel);border-radius:8px;padding:.55rem .7rem;display:grid;gap:2px}
.proclist button[aria-current=true]{border-color:var(--accent);background:var(--accent-soft)}
.proclist b{font-weight:600;font-size:.92rem}
.proclist span{font-size:.78rem;color:var(--muted)}
.steps{display:grid;gap:4px;padding:0;margin:0;list-style:none}
.steps li label{display:flex;gap:.55rem;align-items:flex-start;padding:.3rem .2rem;cursor:pointer}
.steps li input{margin-top:.25rem;accent-color:var(--accent)}
.steps li.done span{color:var(--muted);text-decoration:line-through}
.scan{display:grid;gap:.8rem;justify-items:center;text-align:center;padding:1.2rem;border:1px solid var(--line);border-radius:var(--r);background:var(--panel-2)}
.scan .code{font-family:var(--f-mono);font-size:2rem;letter-spacing:.12em}
.scan .name{font-size:1.1rem}
.bar{height:6px;background:var(--line);border-radius:3px;width:100%;overflow:hidden}
.bar>i{display:block;height:100%;background:var(--accent)}
.timer{font-family:var(--f-mono);font-size:1.8rem;font-variant-numeric:tabular-nums}
.spark{display:block}
.toast{position:fixed;left:50%;transform:translateX(-50%);bottom:calc(16px + env(safe-area-inset-bottom,0px));background:var(--ink);color:var(--bg);padding:.6rem 1rem;border-radius:8px;font-size:.9rem;z-index:20;max-width:calc(100% - 32px)}
.notice{border-left:3px solid var(--brass);padding:.6rem .8rem;background:var(--panel);border-radius:0 8px 8px 0;font-size:.85rem;color:var(--muted)}
.guide{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.guide .card p+p,.guide .card ul{margin-top:.5rem}
.guide ul{padding-left:1.1rem;margin:0}
.kbd{font-family:var(--f-mono);font-size:.78rem;border:1px solid var(--line);border-bottom-width:2px;border-radius:4px;padding:0 .3rem;background:var(--panel)}
.confirm{display:inline-flex;gap:.4rem;align-items:center;flex-wrap:wrap}
@media (max-width:860px){
  .machine{grid-template-columns:1fr 1fr;grid-template-areas:"out in" "pyr pyr" "mat mat" "side side"}
  .split{grid-template-columns:1fr}
}
@media (max-width:480px){.machine{padding:12px;gap:12px}.matrix{gap:8px 5px}h1{font-size:1.5rem}}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}

/* sign-in */
.auth{min-height:100vh;display:grid;align-content:center;justify-items:center;gap:18px;padding-inline:16px;padding-block:32px}
.auth-brand{display:grid;justify-items:center;gap:6px;text-align:center;color:var(--ink)}
.auth-brand svg{color:var(--accent)}
.auth-card{width:min(420px,100%)}
#user-menu{gap:.4rem}
a.btn{text-decoration:none;color:inherit}
td select{min-width:150px}