/* Cement Calc (15 Oct 2026) - a phone-first calculator, one column. 16 Oct: the WellDesk palette - navy bands,
   neon-blue accents, amber for the key word and the buttons. */
:root {
  --navy: #15324C; --neon: #2FD4F2; --amber: #F5B54A;
  --bg: #eef1f4; --ink: #142636; --muted: #5b6977; --card: #ffffff; --line: #d5dbe1;
  --band: var(--navy); --band-ink: #ffffff; --band-sub: var(--neon);
  --accent: var(--amber); --on-accent: var(--navy); --soft: #fff2d9;
  --sel: var(--navy); --on-sel: #ffffff; --link: #1b6fa3; --hl: var(--navy);
  --warn: #a96300; --warn-bg: #fdf0db; --bad: #b83226; --bad-bg: #fbe5e2;
  --f-display: "Barlow Semi Condensed", "Avenir Next Condensed", "Roboto Condensed", "Arial Narrow", system-ui, sans-serif;
  --f-body: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --f-mono: ui-monospace, Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0b1622; --ink: #e6edf3; --muted: #93a4b4; --card: #12222f; --line: #233a4e; --soft: #2d2714;
    --sel: var(--neon); --on-sel: #0b1622; --link: var(--neon); --hl: var(--neon);
    --warn: #eaa443; --warn-bg: #33260f; --bad: #ec6a5a; --bad-bg: #3a1a17; color-scheme: dark; }
}
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; background: var(--bg); color: var(--ink); font: 15px/1.45 var(--f-body); }
body { min-height: 100vh; padding: 0 0 env(safe-area-inset-bottom); }
#app { max-width: 560px; margin: 0 auto; padding: 0 14px 28px; display: flex; flex-direction: column; gap: 10px; }
button { font: inherit; color: inherit; }
[hidden] { display: none !important; }
button:focus-visible, input:focus-visible, select:focus-visible { outline: 2px solid var(--link); outline-offset: 2px; }

.band { display: flex; align-items: center; gap: 10px; margin: 0 -14px 4px; padding: calc(14px + env(safe-area-inset-top)) 14px 13px;
  min-height: 60px; position: sticky; top: 0; background: var(--band); color: var(--band-ink); z-index: 5; }
.band h1 { font: 700 22px/1.1 var(--f-display); margin: 0; flex: 1; }
.band .sub { display: block; font: 500 12.5px/1.35 var(--f-mono); color: var(--band-sub); margin-top: 3px; }
.band .sub b { color: var(--amber); font-weight: 700; }
.band .units { display: flex; gap: 6px; }
.band .units button { border: 1.5px solid rgba(255,255,255,.35); background: none; color: #fff; border-radius: 999px; font: 600 12.5px var(--f-body); padding: 5px 10px; cursor: pointer; }
.band .units button[aria-pressed="true"] { background: var(--amber); color: var(--navy); border-color: var(--amber); }

.card { background: var(--card); border-radius: 14px; padding: 12px 14px; border: 1px solid var(--line); min-width: 0; display: grid; gap: 8px; }
.sec { font: 500 11px var(--f-mono); letter-spacing: 1.3px; text-transform: uppercase; color: var(--muted); }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.grid3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px; }
label.f, div.f { display: grid; gap: 5px; font-size: 13px; color: var(--muted); }
input.in, select.in, textarea.in { font: 500 16px var(--f-body); color: var(--ink); background: var(--card); border: 1.5px solid var(--line); border-radius: 10px; padding: 10px; width: 100%; min-width: 0; }
input.in:disabled, select.in:disabled { opacity: .5; }
.hint { font-size: 13px; color: var(--muted); }
.note { border-radius: 10px; padding: 8px 11px; font-size: 13px; background: var(--warn-bg); color: var(--warn); }
.note.bad { background: var(--bad-bg); color: var(--bad); font-weight: 600; }
.chips { display: flex; gap: 6px; flex-wrap: wrap; }
.chip { font: 600 13px var(--f-body); padding: 7px 12px; border-radius: 999px; border: 1.5px solid var(--line); background: var(--card); color: var(--ink); cursor: pointer; }
.chip[aria-pressed="true"] { border-color: var(--sel); background: var(--sel); color: var(--on-sel); }
.link { border: 0; background: none; color: var(--link); font: 600 13px var(--f-body); cursor: pointer; padding: 0; }
.spread { display: flex; justify-content: space-between; gap: 10px; align-items: baseline; }
.btn { font: 600 15px var(--f-body); border: 0; border-radius: 12px; padding: 12px 14px; cursor: pointer; background: var(--accent); color: var(--on-accent); }
.btn.ghost { background: var(--card); color: var(--ink); border: 1.5px solid var(--line); }
.btn.sm { padding: 8px 12px; font-size: 14px; }

/* the answer */
.res { border: 2px solid var(--hl); border-top-width: 5px; }
.res .big { font: 700 36px/1.05 var(--f-display); font-variant-numeric: tabular-nums; color: var(--hl); }
.res .runs { font: 600 14px var(--f-mono); color: var(--link); }
.res.wait { border-color: var(--line); }
.res .wait { color: var(--muted); padding: 4px 0; }
.kv { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 6px 14px; font-size: 14px; margin: 0; }
.kv dt { color: var(--muted); } .kv dd { margin: 0; text-align: right; font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
.kv dd small { display: block; color: var(--muted); font-size: 12px; }
.vol { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; text-align: center; }
.vol div { background: var(--bg); border-radius: 10px; padding: 8px 4px; }
.vol b { display: block; font: 700 17px var(--f-display); font-variant-numeric: tabular-nums; }
.vol small { color: var(--muted); font-size: 11.5px; }
.vol div.on { background: var(--soft); outline: 1.5px solid var(--amber); }

/* which bailer: one row per bailer, tap to pick it */
table.cmp { width: 100%; border-collapse: collapse; font-size: 14px; font-variant-numeric: tabular-nums; }
table.cmp th { font: 500 11px var(--f-mono); letter-spacing: 1px; text-transform: uppercase; color: var(--muted); text-align: right; padding: 4px 6px; font-weight: 500; }
table.cmp th:first-child, table.cmp td:first-child { text-align: left; }
table.cmp td { padding: 9px 6px; text-align: right; border-top: 1px solid var(--line); cursor: pointer; }
table.cmp tr.on td { background: var(--soft); font-weight: 600; }
table.cmp tr.on td:first-child { box-shadow: inset 3px 0 0 var(--amber); }
table.cmp td b { font-weight: 700; }

/* on the job */
.cnt { display: grid; grid-template-columns: auto 1fr auto; gap: 10px; align-items: center; }
.cnt .lab { text-align: center; font-size: 14px; color: var(--muted); }
.cnt .n { font: 700 24px/1 var(--f-display); color: var(--ink); margin-left: 6px; font-variant-numeric: tabular-nums; }
.cnt .btn.sm { min-width: 48px; }
.foot { text-align: center; color: var(--muted); font-size: 12px; padding-top: 10px; }
textarea.in { resize: vertical; font-size: 15px; }
.band .back { border: 0; background: rgba(255, 255, 255, .14); color: #fff; width: 34px; height: 34px; border-radius: 10px; font-size: 18px; cursor: pointer; flex: none; }
.acts { display: flex; gap: 8px; }
.acts .btn { flex: 1; }
.acts .btn[disabled] { opacity: .6; cursor: default; }
.pdfmsg:empty { display: none; }
.pdfmsg { padding: 0 2px; }

/* the report (16 Oct 2026): a paper sheet - white and dark ink in dark mode too, A4 when printed */
.rep { background: #fff; color: #17212a; border-radius: 8px; padding: 18px 16px 14px; border: 1px solid var(--line);
  box-shadow: 0 2px 14px rgba(0, 0, 0, .18); font: 13px/1.45 var(--f-body); display: grid; gap: 14px; }
.rep .rh { display: flex; justify-content: space-between; gap: 12px; align-items: flex-start; background: #15324C; color: #fff;
  margin: -18px -16px 0; padding: 16px 16px 13px; border-radius: 8px 8px 0 0; border-bottom: 4px solid #F5B54A; }
.rep .rh h1 { color: #fff; }
.rep .rh .rw { color: #cfe9f2; }
.rep .rh .rm dt { color: #2FD4F2; }
.rep .rh .rm dd { color: #F5B54A; }
.rep .rk { font: 600 11px var(--f-mono); letter-spacing: 1.4px; text-transform: uppercase; color: #2FD4F2; }
.rep h1 { font: 700 24px/1.1 var(--f-display); margin: 2px 0 3px; color: #15324C; }
.rep .rw { font-weight: 600; color: #3c4a55; }
.rep .rm { display: grid; grid-template-columns: auto auto; gap: 2px 8px; margin: 0; font-size: 12px; white-space: nowrap; }
.rep .rm dt { color: #6b7883; } .rep .rm dd { margin: 0; font-weight: 600; text-align: right; }
.rep .rs { display: grid; gap: 8px; }
.rep h2 { display: flex; align-items: center; gap: 8px; margin: 2px 0 0; font: 700 16px/1.2 var(--f-display); color: #15324C;
  border-bottom: 2px solid #2FD4F2; padding-bottom: 5px; text-transform: uppercase; letter-spacing: .4px; }
.rep h2 .no { display: inline-grid; place-items: center; width: 22px; height: 22px; border-radius: 6px; background: #15324C; color: #F5B54A; font-size: 13px; }
.rep h3 { margin: 4px 0 0; font: 600 11px var(--f-mono); letter-spacing: 1.2px; text-transform: uppercase; color: #6b7883; }
.rep .rg { display: grid; grid-template-columns: 1fr 1fr; gap: 6px 14px; margin: 0; }
.rep .rg div { border-bottom: 1px dotted #cfd6dc; padding-bottom: 3px; min-width: 0; }
.rep .rg div.wide { grid-column: 1 / -1; }
.rep .rg dt { font-size: 11px; color: #6b7883; }
.rep .rg dd { margin: 0; font-weight: 600; overflow-wrap: anywhere; font-variant-numeric: tabular-nums; }
.rep .rg div.bad dd { color: #b83226; }
.rep .keep { display: grid; gap: 6px; }
.rep .rem { margin: 0; padding: 7px 9px; background: #f3f6f8; border-radius: 6px; }
.rep .fine { margin: 0; font-size: 11.5px; color: #5d6c78; }
.rep .scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.rep table.rt { width: 100%; border-collapse: collapse; font-size: 12px; font-variant-numeric: tabular-nums; }
.rep .rt th { text-align: left; font: 600 10.5px var(--f-mono); letter-spacing: .6px; text-transform: uppercase; color: #15324C;
  background: #e6eef5; padding: 5px 6px; white-space: nowrap; }
.rep .rt td { padding: 5px 6px; border-bottom: 1px solid #e1e6ea; vertical-align: top; }
.rep .rt .n { text-align: right; white-space: nowrap; }
.rep .rt tr.on td { background: #fff2d9; font-weight: 700; }
.rep .rt tr.on td:first-child { box-shadow: inset 3px 0 0 #F5B54A; }
.rep .tiles3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.rep .tiles3 div { background: #15324C; color: #fff; border-radius: 8px; padding: 8px 10px; display: grid; gap: 2px; }
.rep .tiles3 small { font-size: 10.5px; color: #2FD4F2; text-transform: uppercase; letter-spacing: .6px; }
.rep .tiles3 b { font: 700 18px/1.15 var(--f-display); font-variant-numeric: tabular-nums; color: #F5B54A; }
.rep .sign { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 10px; }
.rep .sign div { border-top: 1.5px solid #17212a; padding-top: 4px; display: grid; min-height: 46px; align-content: start; }
.rep .sign small { color: #6b7883; font-size: 11px; }
.rep .sign span { font-weight: 600; }
.rep .rf { text-align: center; font-size: 10.5px; color: #8a96a0; border-top: 1px solid #e1e6ea; padding-top: 6px; }
@media (max-width: 420px) {
  .rep { padding: 14px 12px 12px; }
  .rep .rh { margin: -14px -12px 0; padding: 14px 12px 11px; }
  .rep .rg { gap: 5px 10px; }
  .rep .rm { font-size: 11px; }
  .rep .tiles3 b { font-size: 15px; }
  .rep .rt td:nth-child(3) { min-width: 170px; }
}
@media print {
  @page { size: A4; margin: 10mm 11mm 11mm; }
  html, body { background: #fff !important; }
  .noprint, .band { display: none !important; }
  #app { max-width: none; padding: 0; gap: 0; }
  .rep { border: 0; box-shadow: none; border-radius: 0; padding: 0; font-size: 11.5px; gap: 11px; }
  .rep .rg { grid-template-columns: 1fr 1fr 1fr; }
  .rep .scroll { overflow: visible; }
  /* grid layout breaks badly across printed pages (rows land on the notes): plain blocks on paper */
  .rep, .rep .rs { display: block; }
  .rep > * + * { margin-top: 10px; }
  .rep .rs > * + * { margin-top: 6px; }
  .rep .rg, .rep .keep { break-inside: avoid; }
  .rep .keep > * + * { margin-top: 6px; }
  .rep .rt { font-size: 11px; }
  .rep .rt td { padding: 2.5px 6px; }
  .rep .rg { gap: 4px 14px; }
  .rep .tiles3 div { padding: 6px 10px; }
  .rep .sign { margin-top: 6px; break-before: avoid; }
  .rep .sign div { min-height: 36px; }
  .rep .rh { margin: 0; padding: 11px 14px 9px; border-radius: 6px; }
  .rep .rt th { padding: 4px 6px; }
  .rep thead { display: table-header-group; }
  .rep .rt td:nth-child(3) { min-width: 0; }
  .rep .rt tr, .rep .rg div, .rep .tiles3, .rep .sign, .rep h2, .rep h3 { break-inside: avoid; }
  .rep h2, .rep h3 { break-after: avoid; }
  .rep .rh, .rep .tiles3 div, .rep .rt th, .rep .rt tr.on td, .rep h2 .no { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
}