/* =====================================================================
   NESR Engineering Design Platform
   Visual language: engineering drafting sheet + instrument panel.
   Cool drafting paper, petroleum-dark schematic bands, teal instrument
   accent, monospaced numerals for every measured quantity.
   ===================================================================== */

:root {
  --paper:      #eef1f2;
  --paper-2:    #f7f9f9;
  --card:       #ffffff;
  --ink:        #0c1a22;
  --ink-2:      #12262f;
  --steel:      #33505e;
  --steel-mid:  #5d7683;
  --steel-soft: #8fa3ad;
  --rule:       #c3d0d6;
  --rule-soft:  #dde5e8;
  --accent:     #0b6e7f;
  --accent-dim: #0b6e7f22;
  --pass:       #1b6b45;
  --pass-bg:    #e3f1ea;
  --caution:    #8a5804;
  --caution-bg: #fbf0dc;
  --fail:       #a32218;
  --fail-bg:    #fae7e5;
  --na:         #6b7f89;
  --flare:      #e0691f;

  --mono: "SFMono-Regular", "SF Mono", "Cascadia Mono", Consolas,
          "Liberation Mono", "Roboto Mono", monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
          "Helvetica Neue", Arial, sans-serif;

  --shadow-lift: 0 1px 2px rgba(12,26,34,.08), 0 6px 18px rgba(12,26,34,.06);
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.5;
  color: var(--ink);
  background: var(--paper);
  background-image:
    linear-gradient(rgba(51,80,94,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(51,80,94,.045) 1px, transparent 1px);
  background-size: 28px 28px;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.num { font-family: var(--mono); font-variant-numeric: tabular-nums; }

/* ---------------------------------------------------------------- masthead */
.masthead {
  background: var(--ink);
  color: #dce6ea;
  border-bottom: 3px solid var(--accent);
}
.masthead-inner {
  max-width: 1680px; margin: 0 auto;
  padding: 0 22px;
  display: flex; align-items: center; gap: 26px;
  min-height: 56px;
}
.brand { display: flex; align-items: baseline; gap: 10px; }
.brand b { font-size: 17px; letter-spacing: .02em; color: #fff; font-weight: 700; }
.brand span { font-size: 12.5px; color: var(--steel-soft); }

.masthead nav { display: flex; gap: 2px; margin-left: auto; flex-wrap: wrap; }
.masthead nav a {
  color: #b9cbd3; padding: 7px 13px; border-radius: 3px;
  font-size: 13px; letter-spacing: .01em;
}
.masthead nav a:hover { background: rgba(255,255,255,.07); text-decoration: none; color: #fff; }
.masthead nav a.on { background: var(--accent); color: #fff; }

.whoami {
  font-size: 12px; color: var(--steel-soft);
  padding-left: 18px; border-left: 1px solid rgba(255,255,255,.14);
}
.whoami b { color: #cfdde3; display: block; font-weight: 600; }

/* ------------------------------------------------------------------- shell */
.shell { max-width: 1680px; margin: 0 auto; padding: 20px 22px 60px; }

.page-head {
  display: flex; align-items: flex-end; gap: 20px;
  flex-wrap: wrap; margin-bottom: 18px;
}
.page-head h1 {
  margin: 0; font-size: 23px; font-weight: 640; letter-spacing: -.01em;
}
.page-head .sub { color: var(--steel-mid); font-size: 13.5px; margin-top: 3px; }
.page-head .spacer { flex: 1; }

/* ------------------------------------------------------------------ panels */
.panel {
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: 4px;
}
.panel > h2 {
  margin: 0; padding: 11px 16px;
  font-size: 13.5px; font-weight: 650; letter-spacing: .01em;
  border-bottom: 1px solid var(--rule-soft);
  background: var(--paper-2);
  display: flex; align-items: center; gap: 10px;
  border-radius: 4px 4px 0 0;
}
.panel > h2 .tag {
  margin-left: auto; font-family: var(--mono); font-size: 11px;
  color: var(--steel-mid); font-weight: 500;
}
.panel-body { padding: 14px 16px; }

/* ------------------------------------------------------------ dark band */
.darkband {
  background: var(--ink);
  background-image: radial-gradient(circle at 18% 0%, #17313d 0%, #0c1a22 62%);
  border: 1px solid #1d3742;
  border-radius: 4px;
  color: #cddae0;
  overflow: hidden;
  margin-bottom: 18px;
}
.darkband header {
  display: flex; align-items: center; gap: 14px;
  padding: 9px 16px;
  border-bottom: 1px solid rgba(255,255,255,.08);
  font-size: 12.5px; color: #9fb4bd;
}
.darkband header b { color: #fff; font-weight: 600; font-size: 13.5px; }
.darkband .tabs { margin-left: auto; display: flex; gap: 3px; }
.darkband .tabs button {
  background: rgba(255,255,255,.06); color: #b9cbd3;
  border: 1px solid transparent; border-radius: 3px;
  font: inherit; font-size: 12px; padding: 4px 12px; cursor: pointer;
}
.darkband .tabs button:hover { background: rgba(255,255,255,.12); }
.darkband .tabs button[aria-selected="true"] {
  background: var(--accent); color: #fff; border-color: #1a8ea2;
}
.darkband .stage { padding: 6px 10px 12px; }
.darkband .stage svg { display: block; width: 100%; height: auto; }

/* ------------------------------------------------------------ work layout */
.work {
  display: grid;
  grid-template-columns: 330px minmax(0, 1fr) 330px;
  gap: 16px;
  align-items: start;
}
@media (max-width: 1400px) {
  .work { grid-template-columns: 300px minmax(0,1fr); }
  .work .col-qa { grid-column: 1 / -1; }
}
@media (max-width: 950px) {
  .work { grid-template-columns: 1fr; }
}
.sticky { position: sticky; top: 14px; }
@media (max-width: 950px) { .sticky { position: static; } }

/* ------------------------------------------------------------------ inputs */
.fieldset { border: 0; margin: 0; padding: 0; }
.fieldset + .fieldset { margin-top: 4px; }
.fieldset > legend {
  font-size: 11.5px; font-weight: 650; color: var(--steel);
  padding: 10px 0 6px; width: 100%;
  border-top: 1px solid var(--rule-soft);
  letter-spacing: .015em;
}
.fieldset:first-of-type > legend { border-top: 0; padding-top: 0; }

.field { display: grid; grid-template-columns: 1fr 104px; gap: 8px; align-items: center; margin-bottom: 5px; }
.field label { font-size: 12.5px; color: var(--steel); line-height: 1.3; }
.field .unit { font-size: 11px; color: var(--steel-soft); font-family: var(--mono); }
.field input, .field select {
  font: inherit; font-family: var(--mono); font-size: 12.5px;
  width: 100%; padding: 5px 7px; text-align: right;
  border: 1px solid var(--rule); border-radius: 3px;
  background: #fff; color: var(--ink);
}
.field select { text-align: left; font-family: var(--sans); }
.field input:focus, .field select:focus { border-color: var(--accent); }
.field input.touched { background: #fffbe9; border-color: #d6b24a; }

.field-wide { grid-template-columns: 1fr; }
.field-wide input, .field-wide select { text-align: left; }

/* -------------------------------------------------------------- calc module */
.calcmod { margin-bottom: 14px; }
.calcmod .intro {
  font-size: 12.8px; color: var(--steel-mid);
  padding: 10px 16px 0; margin: 0;
  max-width: 78ch;
}

table.calc { width: 100%; border-collapse: collapse; font-size: 13px; }
table.calc th {
  text-align: left; font-weight: 600; font-size: 11.5px; color: var(--steel-mid);
  padding: 8px 10px; border-bottom: 1px solid var(--rule);
}
table.calc th.r, table.calc td.r { text-align: right; }
table.calc tbody tr { border-bottom: 1px solid var(--rule-soft); }
table.calc tbody tr:last-child { border-bottom: 0; }
table.calc tbody tr:hover { background: #f4f8f9; }
table.calc td { padding: 7px 10px; vertical-align: top; }
table.calc td.qty {
  font-family: var(--mono); font-variant-numeric: tabular-nums;
  font-size: 13.5px; font-weight: 600; white-space: nowrap;
}
table.calc td.unit { color: var(--steel-mid); font-family: var(--mono); font-size: 11.5px; white-space: nowrap; }
table.calc .symbol {
  font-family: var(--mono); font-size: 11px; color: var(--accent);
  background: var(--accent-dim); padding: 1px 5px; border-radius: 2px; margin-left: 7px;
}
table.calc .note { font-size: 12px; color: var(--steel-mid); margin-top: 3px; max-width: 74ch; }

.formula {
  font-family: var(--mono); font-size: 12px;
  background: #f2f6f7; border-left: 2px solid var(--accent);
  padding: 6px 10px; margin-top: 6px; color: var(--ink-2);
  overflow-x: auto; white-space: nowrap;
}
.formula .sub { display: block; color: var(--steel-mid); margin-top: 3px; }
.basis { font-size: 11.5px; color: var(--steel-soft); margin-top: 4px; font-style: italic; }

details.showwork > summary {
  cursor: pointer; font-size: 11.5px; color: var(--accent);
  list-style: none; margin-top: 4px; display: inline-block;
}
details.showwork > summary::-webkit-details-marker { display: none; }
details.showwork > summary::before { content: "▸ "; }
details.showwork[open] > summary::before { content: "▾ "; }
details.showwork > summary:hover { text-decoration: underline; }

/* --------------------------------------------------------------- QA panel */
.verdict {
  padding: 13px 16px; border-radius: 4px 4px 0 0;
  color: #fff; display: flex; align-items: center; gap: 12px;
}
.verdict.ok      { background: var(--pass); }
.verdict.warn    { background: var(--caution); }
.verdict.blocked { background: var(--fail); }
.verdict b { font-size: 15px; font-weight: 650; }
.verdict .counts { margin-left: auto; font-family: var(--mono); font-size: 12px; opacity: .92; }

.qarow {
  display: block; padding: 9px 13px 10px 13px;
  border-bottom: 1px solid var(--rule-soft);
  border-left: 3px solid transparent;
}
.qarow:last-child { border-bottom: 0; }
.qarow.pass    { border-left-color: var(--pass); }
.qarow.caution { border-left-color: var(--caution); background: var(--caution-bg); }
.qarow.fail    { border-left-color: var(--fail);    background: var(--fail-bg); }
.qarow.not_applicable { border-left-color: var(--na); opacity: .72; }

.qarow .top { display: flex; align-items: baseline; gap: 8px; }
.qarow .title { font-size: 12.8px; font-weight: 600; flex: 1; }
.qarow .pill {
  font-size: 10px; font-weight: 700; letter-spacing: .04em;
  padding: 2px 6px; border-radius: 2px; font-family: var(--mono);
}
.pill.pass    { background: var(--pass-bg);    color: var(--pass); }
.pill.caution { background: #fff;              color: var(--caution); }
.pill.fail    { background: #fff;              color: var(--fail); }
.pill.not_applicable { background: #eceff1;    color: var(--na); }

.qarow .msg  { font-size: 12px; color: var(--ink-2); margin-top: 4px; max-width: 70ch; }
.qarow .meta { font-size: 11px; color: var(--steel-mid); margin-top: 4px; font-family: var(--mono); }
.qarow .remedy {
  font-size: 11.5px; margin-top: 5px; padding: 5px 8px;
  background: rgba(255,255,255,.75); border-radius: 2px; color: var(--ink-2);
}
.qarow .remedy b { font-weight: 600; }
.sev { font-size: 10px; color: var(--steel-soft); font-family: var(--mono); }

/* ---------------------------------------------------------------- buttons */
.btn {
  font: inherit; font-size: 13px; font-weight: 550;
  padding: 7px 15px; border-radius: 3px; cursor: pointer;
  border: 1px solid var(--rule); background: #fff; color: var(--ink);
  display: inline-flex; align-items: center; gap: 7px;
}
.btn:hover { border-color: var(--steel-mid); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover { background: #095b69; }
.btn.ghost { background: transparent; }
.btn[disabled] { opacity: .45; cursor: not-allowed; }
.btn.danger { background: var(--fail); border-color: var(--fail); color: #fff; }

/* ------------------------------------------------------------------ tables */
table.grid { width: 100%; border-collapse: collapse; font-size: 13px; }
table.grid th {
  text-align: left; font-size: 11.5px; font-weight: 650; color: var(--steel-mid);
  padding: 9px 12px; border-bottom: 1px solid var(--rule); background: var(--paper-2);
}
table.grid td { padding: 9px 12px; border-bottom: 1px solid var(--rule-soft); }
table.grid tbody tr:hover { background: #f4f8f9; }
table.grid tr.hi td { background: var(--accent-dim); font-weight: 600; }
table.grid td.n { font-family: var(--mono); font-variant-numeric: tabular-nums; text-align: right; }

/* --------------------------------------------------------------- job cards */
.joblist { display: grid; gap: 12px; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); }
.jobcard {
  background: var(--card); border: 1px solid var(--rule); border-radius: 4px;
  padding: 0; overflow: hidden; display: block; color: inherit;
}
.jobcard:hover { border-color: var(--accent); text-decoration: none; box-shadow: var(--shadow-lift); }
.jobcard .hd { padding: 12px 15px 10px; border-bottom: 1px solid var(--rule-soft); }
.jobcard .dosno { font-family: var(--mono); font-size: 12px; color: var(--accent); }
.jobcard h3 { margin: 3px 0 2px; font-size: 16px; font-weight: 640; }
.jobcard .client { font-size: 12.5px; color: var(--steel-mid); }
.jobcard .bd { padding: 10px 15px 13px; display: grid; grid-template-columns: 1fr 1fr; gap: 7px 12px; }
.jobcard .kv { font-size: 12px; }
.jobcard .kv span { color: var(--steel-mid); display: block; font-size: 11px; }
.jobcard .kv b { font-family: var(--mono); font-weight: 600; font-size: 12.5px; }

.status-chip {
  display: inline-block; font-size: 10.5px; font-weight: 700; letter-spacing: .04em;
  padding: 2px 7px; border-radius: 2px; font-family: var(--mono);
}
.status-chip.draft     { background: #e7ecee; color: var(--steel); }
.status-chip.in_review { background: var(--caution-bg); color: var(--caution); }
.status-chip.approved  { background: var(--pass-bg); color: var(--pass); }
.status-chip.rejected  { background: var(--fail-bg); color: var(--fail); }
.status-chip.superseded{ background: #eceff1; color: var(--na); }

/* --------------------------------------------------------------- chart box */
.chartgrid { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(380px, 1fr)); }
.chartbox { background: var(--card); border: 1px solid var(--rule); border-radius: 4px; padding: 12px 14px 8px; }
.chartbox h3 { margin: 0 0 2px; font-size: 13px; font-weight: 640; }
.chartbox p  { margin: 0 0 8px; font-size: 12px; color: var(--steel-mid); max-width: 62ch; }
.chartbox svg { display: block; width: 100%; height: auto; }

/* ------------------------------------------------------------------- misc */
.hint { font-size: 12px; color: var(--steel-mid); }
.divider { height: 1px; background: var(--rule-soft); margin: 14px 0; }
.rowactions { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.flash {
  animation: flashval .75s ease-out;
}
@keyframes flashval {
  0%   { background: #ffe9a8; }
  100% { background: transparent; }
}
.recalc-note {
  font-size: 11.5px; color: var(--steel-mid); font-family: var(--mono);
  display: flex; align-items: center; gap: 7px;
}
.dot { width: 7px; height: 7px; border-radius: 50%; background: var(--pass); display: inline-block; }
.dot.busy { background: var(--caution); animation: pulse 1s infinite; }
@keyframes pulse { 50% { opacity: .3; } }

.assumption-chip {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 11.5px; font-family: var(--mono);
  background: var(--paper-2); border: 1px solid var(--rule-soft);
  border-radius: 2px; padding: 3px 8px; margin: 0 4px 4px 0;
}
.assumption-chip b { color: var(--accent); font-weight: 600; }
.assumption-chip.over { background: #fffbe9; border-color: #d6b24a; }

.locked-badge { font-size: 10px; font-family: var(--mono); color: var(--steel-soft); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

/* ------------------------------------------------------------------ print */
@media print {
  body { background: #fff; }
  .masthead, .no-print { display: none !important; }
  .shell { max-width: none; padding: 0; }
}