/* ============================================================
   ATLAS LOGISTICS - Operations toolkit (tools.html only)
   Page-specific styles for the 5-tab ops calculators. Reuses the
   :root tokens from style.css and the shared components already
   defined in atlas.css (.tabs/.tablist/.tab/.tabpanel, .table-scroll,
   .pill, .empty-state, .muted, .hairline). Nothing here restyles
   existing site content - every selector is scoped to tool markup.
   No rAF / no JS-driven motion; bars transition via CSS only, and
   that transition is neutralised under prefers-reduced-motion.
   ============================================================ */

/* ---------- tool layout: form column + result column ---------- */

.tool-grid {
  display: grid; gap: 1px; background: var(--line);
  border: 1px solid var(--line);
  grid-template-columns: 1fr;
}
@media (min-width: 880px) {
  .tool-grid { grid-template-columns: 5fr 7fr; }
}
.tool-grid > * { background: var(--bg); min-width: 0; }
.tool-pane { padding: 20px 16px; }
@media (min-width: 720px) { .tool-pane { padding: 24px 22px; } }

.tool-pane > h3 { margin-bottom: 4px; }
.tool-intro { font: 400 12px/1.6 var(--mono); color: var(--steel); margin-bottom: 18px; }

/* single-column inputs on phones; two-up from 560px inside the form pane */
.tool-form { display: grid; gap: 16px; grid-template-columns: 1fr; }
@media (min-width: 560px) {
  .tool-form.two { grid-template-columns: repeat(2, 1fr); }
  .tool-form .span-2 { grid-column: 1 / -1; }
}

.tool-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 4px; }
.tool-actions .btn { flex: 1 1 auto; text-align: center; }

/* ---------- result region ---------- */

.tool-result { min-height: 100%; }
.tool-result[aria-busy="true"] { opacity: .6; }

.result-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 8px 14px; }
.result-big {
  font: 500 clamp(30px, 5vw, 44px)/1.1 var(--mono);
  font-variant-numeric: tabular-nums; color: var(--cyan); letter-spacing: .01em;
}
.result-big.small { font-size: clamp(22px, 3.4vw, 30px); }
.result-sub { font: 400 12px/1.6 var(--mono); color: var(--steel); }

.result-verdict {
  margin-top: 14px; padding: 12px 14px;
  border: 1px solid var(--line); background: var(--panel-deep);
  font: 400 13px/1.6 var(--mono); color: var(--ink);
}
.result-verdict b { color: var(--cyan); font-weight: 500; }
.result-verdict.is-green { border-color: var(--green); }
.result-verdict.is-green b { color: var(--green); }

/* ---------- utilization / comparison bars ---------- */

.bar-set { display: grid; gap: 12px; margin-top: 16px; }
.bar-line { display: grid; gap: 6px; }
.bar-line .bar-head {
  display: flex; justify-content: space-between; align-items: baseline; gap: 10px;
  font: 500 11px/1.4 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--steel);
}
.bar-line .bar-head b { color: var(--ink); font-weight: 500; letter-spacing: .02em; text-transform: none; }
.bar-track {
  position: relative; height: 12px; background: var(--panel-deep);
  border: 1px solid var(--line); overflow: hidden;
}
.bar-fill {
  position: absolute; inset: 0 auto 0 0; width: 0;
  background: var(--cyan);
  transition: width 420ms var(--ease);
}
.bar-fill.is-green { background: var(--green); }
.bar-fill.is-red { background: var(--red); }
.bar-fill.is-steel { background: var(--steel); }

/* comparison rows (co2 / transit) reuse the same track but label + value flank it */
.cmp-row {
  display: grid; grid-template-columns: 88px 1fr auto; gap: 12px; align-items: center;
  padding: 9px 0; border-bottom: 1px solid var(--line);
}
.cmp-row:last-child { border-bottom: 0; }
.cmp-label { font: 500 12px/1.3 var(--mono); letter-spacing: .06em; color: var(--ink); }
.cmp-label .sub { display: block; font-size: 10.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--steel); }
.cmp-val { font: 500 13px/1.3 var(--mono); color: var(--cyan); text-align: right; white-space: nowrap; }
.cmp-row.best .cmp-val { color: var(--green); }
.cmp-row.na .cmp-val { color: var(--steel); }
.cmp-row.na .bar-fill { background: var(--line); }

/* ---------- result mini-table (duty / weight) ---------- */

.res-table { width: 100%; border-collapse: collapse; font: 400 13px/1.5 var(--mono); margin-top: 16px; }
.res-table th, .res-table td { text-align: left; padding: 9px 0; border-bottom: 1px solid var(--line); vertical-align: top; }
.res-table th {
  font-weight: 500; color: var(--steel); font-size: 11px; letter-spacing: .12em; text-transform: uppercase;
  padding-right: 14px; white-space: nowrap;
}
.res-table td { color: var(--ink); text-align: right; font-variant-numeric: tabular-nums; }
.res-table td.data { color: var(--cyan); }
.res-table tr.total th, .res-table tr.total td { border-bottom: 0; border-top: 1px solid var(--line); padding-top: 12px; }
.res-table tr.total td { color: var(--cyan); font-size: 15px; }

/* ---------- container fit chips ---------- */

.fit-grid { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); margin-top: 16px; grid-template-columns: repeat(2, 1fr); }
@media (min-width: 520px) { .fit-grid { grid-template-columns: repeat(4, 1fr); } }
.fit-cell { background: var(--panel-deep); padding: 12px 12px; min-width: 0; }
.fit-cell .lbl { display: block; margin-bottom: 5px; }
.fit-cell b { font: 500 20px/1.2 var(--mono); color: var(--ink); font-variant-numeric: tabular-nums; }
.fit-cell.pick { outline: 1px solid var(--green); outline-offset: -1px; }
.fit-cell.pick b { color: var(--green); }
.fit-cell .sub { display: block; font: 400 11px/1.5 var(--mono); color: var(--steel); margin-top: 2px; }

/* ---------- inline error (shared .err lives in style.css) ---------- */

.tool-error {
  margin-top: 4px; padding: 12px 14px;
  border: 1px solid var(--red); background: rgba(249, 117, 131, .06);
  font: 400 13px/1.6 var(--mono); color: var(--red);
}
.tool-error[hidden] { display: none; }

/* ---------- "send to quote" affordance ---------- */

.send-quote { margin-top: 18px; display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.send-quote .note { font: 400 11px/1.5 var(--mono); color: var(--steel); }

/* ---------- estimate-only disclaimer ---------- */

.disclaimer {
  margin-top: 16px; padding: 10px 12px;
  border-left: 2px solid var(--steel); background: var(--panel-deep);
  font: 400 11.5px/1.6 var(--mono); color: var(--steel);
}

/* the result column starts as an empty state until first compute */
.tool-result[data-empty] .result-body { display: none; }
.tool-result:not([data-empty]) .result-empty { display: none; }

/* ---------- reduced motion: kill the bar transition ---------- */

@media (prefers-reduced-motion: reduce) {
  .bar-fill { transition-duration: 0.01ms !important; }
}