/* Layout: phone = top bar + bottom tabs; desktop (>=900px) = left rail + wide content.
   Palette: concrete greys with a green bias, curing-tank teal accent, specimen-tag orange. */
:root{
  --bg:#eef1ef; --surface:#ffffff; --sunk:#e3e8e5; --line:#cfd7d3;
  --ink:#17201c; --muted:#5b6a63; --accent:#0d6e6a; --accent-ink:#ffffff; --accent-soft:#d6ebe9;
  --tag:#e8820c; --ok:#2f7d32; --ok-soft:#dff0df; --warn:#a86400; --warn-soft:#fbecd2; --bad:#b3261e; --bad-soft:#f8dedb;
  --f-display:"Barlow Semi Condensed","Arial Narrow",system-ui,sans-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; color-scheme:light;
}
@media (prefers-color-scheme: dark){:root{
  --bg:#121816; --surface:#1a2220; --sunk:#222c29; --line:#33403b;
  --ink:#e6ece9; --muted:#9aaba3; --accent:#4fb8b1; --accent-ink:#06201e; --accent-soft:#1d3a38;
  --tag:#f39a33; --ok:#7cc47f; --ok-soft:#1f3321; --warn:#e8a74a; --warn-soft:#3a2c15; --bad:#f08a80; --bad-soft:#3d1f1c; color-scheme:dark}}
*{box-sizing:border-box}
html,body{margin:0}
body{background:var(--bg);color:var(--ink);font:15px/1.45 var(--f-body)}
button,input,select,textarea{font:inherit;color:inherit}
a{color:var(--accent)}
[hidden]{display:none!important}
.wrap{max-width:820px;margin:0 auto;padding-inline:16px;padding-block:12px 120px}

header.top{position:sticky;top:0;z-index:5;background:var(--bg);border-bottom:1px solid var(--line);padding-top:env(safe-area-inset-top,0px)}
header.top .in{max-width:820px;margin:0 auto;padding:10px 16px;display:flex;align-items:center;gap:12px}
.brand{flex:1;min-width:0;display:flex;flex-direction:column}
.brand small{font-size:11.5px;letter-spacing:.07em;text-transform:uppercase;color:var(--muted)}
.brand b{font:700 21px/1.05 var(--f-display)}
.who{font-size:13px;color:var(--muted);text-align:right}
.who b{color:var(--ink);display:block;font-size:14px}

nav.tabs{position:fixed;left:0;right:0;bottom:0;z-index:6;background:var(--surface);border-top:1px solid var(--line);
  display:grid;grid-template-columns:repeat(5,1fr);padding-bottom:env(safe-area-inset-bottom,0px)}
nav.tabs a{display:flex;flex-direction:column;align-items:center;gap:2px;padding:10px 2px 11px;font-size:12.5px;font-weight:600;color:var(--muted);text-decoration:none}
nav.tabs a[aria-current="page"]{color:var(--accent)}
nav.tabs a.add span{width:40px;height:40px;margin-top:-20px;border-radius:50%;background:var(--accent);color:var(--accent-ink);display:grid;place-items:center;font-size:26px;line-height:1;box-shadow:0 2px 8px rgba(0,0,0,.2)}
@media (min-width:900px){
  nav.tabs{top:0;bottom:0;right:auto;width:180px;grid-template-columns:1fr;align-content:start;padding-top:84px;border-top:0;border-right:1px solid var(--line)}
  nav.tabs a{flex-direction:row;font-size:15px;padding:11px 20px;gap:10px}
  nav.tabs a.add span{width:26px;height:26px;margin:0;font-size:18px}
  header.top{padding-left:180px}
  .wrap{padding-left:196px;max-width:1040px;padding-bottom:40px}
}

h1{font:700 26px/1.1 var(--f-display);margin:8px 0 4px;text-wrap:balance}
h2{font:700 19px/1.2 var(--f-display);margin:22px 0 8px}
.eyebrow{font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-weight:600}
.note{font-size:13.5px;color:var(--muted);margin:4px 0}
.note.err{color:var(--bad)}
.id{font:600 13px var(--f-mono);letter-spacing:.02em}
.num{font-variant-numeric:tabular-nums}

.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:10px}
@media (max-width:560px){.kpis{grid-template-columns:repeat(2,1fr)}}
.kpi{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:10px 12px}
.kpi b{display:block;font:700 26px/1.1 var(--f-display);font-variant-numeric:tabular-nums}
.kpi span{font-size:12.5px;color:var(--muted)}
.kpi.alert b{color:var(--bad)}

.list{display:flex;flex-direction:column;gap:8px}
.row{display:flex;gap:12px;align-items:flex-start;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:11px 12px;color:inherit;text-decoration:none}
.row:hover{border-color:var(--accent)}
.row .stub{flex:none;width:7px;align-self:stretch;border-radius:4px;background:var(--tag)}
.row .main{flex:1;min-width:0}
.row .t{font-weight:600;display:block;overflow-wrap:anywhere}
.row .s{color:var(--muted);font-size:13px;display:block;overflow-wrap:anywhere}
.pill{display:inline-block;font-size:11.5px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;padding:2px 8px;border-radius:999px;white-space:nowrap;background:var(--sunk);color:var(--muted)}
.st-allocated,.st-approved{background:var(--accent-soft);color:var(--accent)}
.st-testing,.st-tested{background:var(--warn-soft);color:var(--warn)}
.st-reported{background:var(--ok-soft);color:var(--ok)}
.st-cancelled{background:var(--bad-soft);color:var(--bad)}
.late{color:var(--bad);font-weight:600}
.today{color:var(--warn);font-weight:600}
.empty{border:1.5px dashed var(--line);border-radius:var(--r);padding:16px;color:var(--muted);font-size:14px}

.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:14px}
.kv{display:grid;grid-template-columns:auto 1fr;gap:4px 16px;font-size:14px;margin:0}
.kv dt{color:var(--muted)} .kv dd{margin:0;overflow-wrap:anywhere}
.step{display:flex;flex-direction:column;gap:8px;margin-top:18px}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:1px solid var(--line);background:var(--surface);border-radius:var(--r);padding:10px 14px;font-weight:600;cursor:pointer;color:var(--ink);text-decoration:none}
.btn.primary{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
.btn.big{width:100%;padding:13px;font-size:16px}
.btn[disabled]{opacity:.5;cursor:default}
.ghost{border:1px solid var(--line);background:transparent;border-radius:999px;padding:6px 12px;font-size:13px;cursor:pointer}
.btns{display:flex;gap:8px;flex-wrap:wrap}
.chips{display:flex;gap:6px;flex-wrap:wrap}
.chip{border:1px solid var(--line);background:var(--surface);border-radius:999px;padding:7px 12px;cursor:pointer;font-size:14px}
.chip[aria-pressed="true"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.chip.small{padding:4px 10px;font-size:13px}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

.field{display:flex;flex-direction:column;gap:5px;min-width:0}
.field label,.field .lbl{font-size:12.5px;font-weight:600;color:var(--muted)}
.field input,.field select,.field textarea,.search{padding:10px 11px;border:1px solid var(--line);border-radius:8px;background:var(--surface);width:100%}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
@media (max-width:480px){.grid2{grid-template-columns:1fr}.grid3{grid-template-columns:1fr 1fr}}
.form{display:flex;flex-direction:column;gap:14px}
.smart{background:var(--accent-soft);border-radius:var(--r);padding:12px;display:flex;flex-direction:column;gap:10px}
.smart textarea{min-height:60px;resize:vertical;background:var(--surface)}

.specimen{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:12px;display:flex;flex-direction:column;gap:8px}
.specimen .head{display:flex;justify-content:space-between;align-items:center;gap:8px;flex-wrap:wrap}
.strength{font:700 22px var(--f-display);font-variant-numeric:tabular-nums}
.tbl{width:100%;border-collapse:collapse;font-size:14px}
.tbl th,.tbl td{text-align:left;padding:7px 8px;border-bottom:1px solid var(--line);vertical-align:top}
.tbl th{font-size:12px;color:var(--muted);font-weight:600;letter-spacing:.04em;text-transform:uppercase}
.scroll{overflow-x:auto}
.hist{font-size:13px;color:var(--muted);display:flex;flex-direction:column;gap:4px}

.toast{position:fixed;left:50%;bottom:calc(86px + env(safe-area-inset-bottom,0px));transform:translateX(-50%);background:var(--ink);color:var(--bg);padding:10px 18px;border-radius:999px;font-size:14px;z-index:20;max-width:calc(100% - 32px)}
.login{max-width:380px;margin:12vh auto 0}

/* QR label sheet: A4, 3 x 7 labels of 63.5 x 38.1 mm (standard 21-up sticker sheet) */
.sheet{display:grid;grid-template-columns:repeat(3,63.5mm);grid-auto-rows:38.1mm;gap:0 2.5mm;background:#fff;color:#000;padding:15mm 7.75mm;width:210mm;max-width:100%;overflow:hidden}
.label{display:flex;gap:2mm;align-items:center;padding:2mm 3mm;border:1px dashed #bbb;overflow:hidden}
.label canvas{width:26mm;height:26mm;flex:none}
.label .lt{font:600 9pt/1.15 var(--f-mono)}
.label .ls{font:8pt/1.2 var(--f-body)}
.label .la{font:600 8.5pt/1.2 var(--f-body)}
.sheetwrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r)}
@media print{
  header.top,nav.tabs,.noprint,.toast{display:none!important}
  body{background:#fff} .wrap{padding:0!important;max-width:none}
  .sheetwrap{border:0;overflow:visible}
  .sheet{padding:15mm 7.75mm;width:210mm}
  .label{border:0}
  @page{size:A4;margin:0}
}
@media (prefers-reduced-motion:no-preference){.toast{animation:pop .2s ease-out}@keyframes pop{from{opacity:0;transform:translate(-50%,8px)}to{opacity:1;transform:translate(-50%,0)}}}