/* =========================================================================
   MarinovOS — os/apps/operations.css
   Owner: operations worker.
   Interior character: calm report/workbook surface — paper, thin rules,
   tabular numerals, mono only for formula text. Shared shell classes
   (.btn, .seg, .tabs, .card, .note, .label-demo, .kv, .table, .field, .tag)
   are used as-is and only ever extended with additional classes, never
   restyled at their bare selector.
   ========================================================================= */

.app-operations{
  padding: var(--space-5) var(--space-6) var(--space-7);
  font-size: 15px;
  line-height: 1.55;
  color: var(--ink);
}
.app-operations h2{ font-size: 28px; line-height: 1.15; letter-spacing: -.02em; margin: 0 0 var(--space-2); }
.app-operations h3{ font-size: 18px; line-height: 1.3; margin: 0 0 var(--space-2); }
.app-operations h4{ font-size: 14px; margin: 0 0 var(--space-3); color: var(--ink-2); }
.app-operations p{ margin: 0; }

/* ---------- Back row ---------- */
.op-back{ margin-bottom: var(--space-5); gap: 6px; }
.op-back .ico{ width: 18px; height: 18px; }

/* ---------- Landing ---------- */
/* One compact identity line: the window title bar already names the app, so
   the landing spends its height on the calculated preview instead. */
.op-landing-head{
  display: flex; flex-wrap: wrap; align-items: baseline; gap: var(--space-3);
  margin-bottom: var(--space-3);
}
.op-landing-head h2{ font-size: 22px; margin: 0; }
.op-lede{ color: var(--ink-2); font-size: 14px; }

/* Landing preview: a real calculated comparison, a decision question, one
   action, and the source/model assumptions kept next to the numbers. */
.op-preview{
  padding: var(--space-3) var(--space-4);
  border-color: var(--blue-300);
  background: linear-gradient(180deg, var(--blue-100), var(--paper) 62%);
}
:root[data-theme="dark"] .op-preview{ background: linear-gradient(180deg, rgba(143,181,255,.12), var(--paper) 62%); }
.op-preview-head{
  display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between;
  gap: var(--space-2) var(--space-4); margin-bottom: var(--space-3);
}
.op-preview-head h3{ font-size: 20px; margin: 0; }
.op-preview-head .op-card-kicker{ flex: 0 0 auto; }
.op-preview-body{ min-height: 148px; }
.op-preview-split{ display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(270px, 1fr); gap: var(--space-4) var(--space-5); align-items: start; }
.op-preview-figure{ min-width: 0; }
.op-preview-read{ display: flex; flex-direction: column; align-items: flex-start; gap: var(--space-3); }
.op-preview-body .op-table-wrap{ background: var(--paper); }
.op-preview-table{ font-size: 13.5px; }
.op-preview-caption{
  caption-side: top; text-align: left; padding: 4px var(--space-3) 3px;
  font-size: 11px; text-transform: uppercase; letter-spacing: .04em;
  color: var(--ink-3); font-weight: 600; background: var(--paper-2);
  border-bottom: 1px solid var(--line);
}
.op-preview-body .op-preview-table th,
.op-preview-body .op-preview-table td{ padding: 2px var(--space-3); }
.op-preview-body .op-preview-table th:first-child,
.op-preview-body .op-preview-table td:first-child{ width: 1%; color: var(--ink-3); }
.op-preview-name{ font-weight: 500; white-space: nowrap; }
.op-preview-finding{ color: var(--ink-2); font-size: 14px; }
.op-preview-finding strong{ color: var(--ink); }
.op-preview-action{ flex: 0 0 auto; }
.op-preview-source{ color: var(--ink-3); font-size: 12px; }

/* Compact single-column row list for the remaining examples. */
.op-rows{ display: flex; flex-direction: column; gap: var(--space-2); margin-top: var(--space-2); }
.op-row-card{
  display: grid; grid-template-columns: 290px minmax(120px, max-content) minmax(0, 1fr) auto;
  align-items: center; gap: 2px var(--space-4);
  width: 100%; text-align: left; cursor: pointer; min-height: 48px;
  padding: 6px var(--space-4); border: 1px solid var(--line);
  border-radius: var(--radius-lg); background: var(--paper);
  transition: border-color var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out);
}
.op-row-card:hover, .op-row-card:focus-visible{ border-color: var(--line-2); background: var(--paper-2); }
.op-row-kicker{ font-size: 11px; justify-self: start; }
.op-row-title{ font-weight: 600; font-size: 14px; line-height: 1.3; }
.op-row-desc{ color: var(--ink-2); font-size: 12.5px; line-height: 1.4; }
.op-row-card .op-card-open{ margin-top: 0; padding-top: 0; align-self: center; justify-self: end; }

.op-cards{ display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-5); align-items: stretch; }
.op-cards-2{ grid-template-columns: repeat(2, 1fr); }
.op-card{
  display: flex; flex-direction: column; align-items: flex-start; gap: var(--space-3);
  text-align: left; cursor: pointer; min-height: 160px; height: 100%;
  transition: transform var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out);
}
.op-card:hover, .op-card:focus-visible{ transform: translateY(-2px); box-shadow: 0 10px 28px rgba(16,24,40,.08); border-color: var(--line-2); }
.op-card p{ color: var(--ink-2); font-size: 14px; flex: 1 1 auto; }
.op-card-kicker{ font-size: 11px; }
.op-card-open{
  display: inline-flex; align-items: center; gap: 4px; margin-top: auto; padding-top: var(--space-2);
  color: var(--blue-600); font-size: 14px; font-weight: 500;
}
.op-card-open .ico{ width: 16px; height: 16px; }

/* ---------- Supporting work strip (Chicago demotion) ---------- */
.op-support-strip{ margin-top: var(--space-6); padding-top: var(--space-4); border-top: 1px solid var(--line); }
.op-support-label{ display: block; font-size: 12px; text-transform: uppercase; letter-spacing: .04em; color: var(--ink-3); font-weight: 600; margin-bottom: var(--space-3); }
.op-support-card{
  display: flex; align-items: center; flex-wrap: wrap; gap: var(--space-3);
  width: 100%; text-align: left; cursor: pointer; padding: var(--space-3) var(--space-4);
  border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--paper-2);
}
.op-support-card:hover, .op-support-card:focus-visible{ border-color: var(--line-2); }
.op-support-title{ font-weight: 600; }
.op-support-tag{ font-size: 11px; }
.op-support-desc{ color: var(--ink-2); font-size: 13px; flex: 1 1 220px; }
.op-support-card .op-card-open{ padding-top: 0; margin-top: 0; }

/* ---------- View chrome ---------- */
.op-view-head{ margin-bottom: var(--space-5); max-width: 72ch; }
.op-view-head .label-demo,
.op-view-head .tag{ margin: var(--space-2) 0; display: inline-flex; }
.op-purpose{ color: var(--ink-2); margin-top: var(--space-2); }
.op-role{ color: var(--ink-3); font-size: 13px; margin-top: var(--space-5); font-style: italic; }

.op-controls-row{
  display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-3);
  margin-bottom: var(--space-5);
}

.op-layout{
  display: grid; grid-template-columns: 1fr 280px; gap: var(--space-6); align-items: start;
}
.op-main{ display: flex; flex-direction: column; gap: var(--space-4); min-width: 0; }
.op-aside{ display: flex; flex-direction: column; gap: var(--space-4); position: sticky; top: 0; }

/* ---------- Tables ---------- */
.op-table-hint{ display: none; font-size: 12px; color: var(--ink-3); margin: 0 0 var(--space-2); }
.op-table-wrap{ position: relative; overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius-lg); }
.op-table-wrap table.table{ border: 0; }
.op-table-wrap table.table th:first-child,
.op-table-wrap table.table td:first-child{ position: sticky; left: 0; z-index: 1; background: var(--paper); }
.op-table-wrap::after{
  content: ""; position: absolute; top: 0; right: 0; bottom: 0; width: 32px;
  background: linear-gradient(to right, transparent, var(--paper));
  opacity: 0; pointer-events: none; transition: opacity var(--dur-fast) var(--ease-out);
}
.op-table-wrap.can-scroll-right::after{ opacity: 1; }
@media (max-width: 900px){ .op-table-hint.is-visible{ display: block; } }
.op-num{ font-variant-numeric: tabular-nums; text-align: right; }
.op-emph{ font-weight: 600; color: var(--ink); background: var(--paper-2); }
.op-flag-warn{ color: var(--warn); }
.op-flag-ok{ color: var(--ok); }
.op-empty{ text-align: center; color: var(--ink-3); padding: var(--space-5) !important; }

.op-row{ cursor: pointer; }
.op-row:hover{ background: var(--paper-2); }
.op-row.is-selected{ background: var(--blue-100); }
:root[data-theme="dark"] .op-row.is-selected{ background: rgba(143,181,255,.14); }

.op-input{
  width: 88px; height: 34px; padding: 0 8px; border: 1px solid var(--line-2);
  border-radius: var(--radius-sm); background: var(--paper); text-align: right;
  font-variant-numeric: tabular-nums; font: inherit;
}
.op-input.is-invalid{ border-color: var(--danger); }
.op-field-error{ color: var(--danger); font-size: 11px; margin-top: 4px; text-align: right; }

/* ---------- Formula / mono ---------- */
.op-formula-code, .op-formula code{ font-family: var(--font-mono); font-size: 13px; }
.op-formula-code{ margin: 2px 0; color: var(--ink-2); }
.op-formula-code code{ color: var(--ink); }
.op-formula-plain{ margin-top: var(--space-2); color: var(--ink-2); font-size: 13px; }
.op-formula-empty{ display: flex; align-items: center; }
.op-formula .note{ margin-top: var(--space-3); }

/* ---------- Compact supporting views (Chicago, bracelet) ---------- */
.op-compact-view{ max-width: 760px; }
.op-expense-totals .kv{ margin: 0; }

/* ---------- Contribution analysis (flagship) ---------- */
.op-contribution .op-back{ margin-bottom: var(--space-3); }
.op-view-head-tight{ margin-bottom: var(--space-2); }
.op-view-head-tight h2{ margin-bottom: 4px; }
.op-controls-row-tight{ margin-bottom: var(--space-2); }
.op-finding{
  margin-bottom: var(--space-4); padding: var(--space-3) var(--space-4);
  border-left: 3px solid var(--blue-500); background: var(--blue-100); border-radius: var(--radius-sm);
}
:root[data-theme="dark"] .op-finding{ background: rgba(143,181,255,.10); }
.op-finding-text{ font-size: 15px; color: var(--ink); }
.op-finding-stats{ font-size: 12px; color: var(--ink-3); margin-top: var(--space-2); font-variant-numeric: tabular-nums; }

.op-rank-table td, .op-rank-table th{ vertical-align: middle; }
.op-rank-label{ display: block; font-weight: 500; margin-bottom: 4px; }
.op-rank-bar-wrap{ display: block; width: 100%; min-width: 120px; height: 8px; border-radius: 4px; background: var(--paper-2); overflow: hidden; }
.op-rank-bar{ display: block; height: 100%; border-radius: 4px; background: var(--blue-500); }
.op-rank-row{ cursor: pointer; }
.op-rank-row:hover{ background: var(--paper-2); }
.op-rank-row.is-selected{ background: var(--blue-100); }
:root[data-theme="dark"] .op-rank-row.is-selected{ background: rgba(143,181,255,.14); }

.op-recommendation{ margin-top: var(--space-5); }
.op-recommendation p{ color: var(--ink-2); margin-bottom: var(--space-4); }

.op-contrib-layout{ grid-template-columns: 1fr 300px; }
.op-bridge-title{ margin-bottom: 0; }
.op-bridge{ display: flex; flex-direction: column; gap: var(--space-2); }
.op-bridge-row{
  border: 1px solid var(--line); border-radius: var(--radius-lg); padding: var(--space-3) var(--space-4);
  background: var(--paper);
}
.op-bridge-row > summary{
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-3);
  cursor: pointer; list-style: none; font-weight: 500; min-height: 40px;
}
.op-bridge-row > summary::-webkit-details-marker{ display: none; }
.op-bridge-label{ color: var(--ink); }
.op-bridge-amount{ font-variant-numeric: tabular-nums; font-weight: 600; }
.op-bridge-def{ color: var(--ink-2); font-size: 13px; margin: var(--space-2) 0 var(--space-3); }
.op-bridge-row[open]{ border-color: var(--blue-300); }

.op-scenario-panel{ display: flex; flex-direction: column; gap: var(--space-2); }
.op-scenario-label{ color: var(--ink-2); font-size: 13px; }
#op-scenario-slider{ width: 100%; accent-color: var(--blue-500); }
.op-scenario-value{ font-variant-numeric: tabular-nums; font-weight: 600; font-size: 18px; }
.op-scenario-panel .kv{ margin-top: var(--space-2); }
.op-scenario-panel button{ align-self: flex-start; margin-top: var(--space-2); }

.op-model-provenance dt{ font-size: 12px; color: var(--ink-3); }
.op-model-note, .op-model-formulas, .op-model-table, .op-model-selftest, .op-model-provenance{ margin-top: var(--space-4); }
.op-model-full-table td{ white-space: nowrap; }

/* ---------- Bracelet ---------- */
.op-bracelet-compare{ margin-top: var(--space-4); }
.op-bracelet-compare .note{ margin-top: var(--space-3); }
.op-bracelet-assumptions, .op-bracelet-formula{ margin-top: var(--space-4); }
.op-bracelet-assumptions summary, .op-bracelet-formula summary{ cursor: pointer; font-weight: 500; padding: var(--space-2) 0; min-height: 40px; display: flex; align-items: center; }
.kv-block{ display: flex; flex-direction: column; gap: var(--space-2); margin-top: var(--space-2); color: var(--ink-2); font-size: 14px; }
.kv-block strong{ color: var(--ink); }

/* ---------- Forecast ---------- */
.op-forecast-full{ max-width: none; }
.op-sku-field{ min-width: 200px; }
.op-chart-wrap{ background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: var(--space-4); margin-bottom: var(--space-4); }
.op-chart{ width: 100%; height: 200px; display: block; }
.op-chart-axis{ stroke: var(--line-2); stroke-width: 1; }
.op-chart-line{ stroke: var(--blue-500); stroke-width: 2; }
.op-chart-dash{ stroke: var(--ink-3); stroke-width: 1.5; stroke-dasharray: 3 3; }
.op-chart-dot{ fill: var(--amber); }
.op-chart-tick{ font-size: 9px; fill: var(--ink-3); font-family: var(--font-sans); }
.op-chart-tick-next{ fill: var(--amber-ink); font-weight: 600; }
.op-output-value{ font-size: 24px; font-weight: 600; font-variant-numeric: tabular-nums; }
.op-mae .kv{ margin-bottom: var(--space-3); }
.op-mae dd{ font-variant-numeric: tabular-nums; }
.op-input-rows{ margin-bottom: var(--space-4); }
.op-input-rows .op-table-wrap{ margin-top: 0; }
.op-mae-window{ background: var(--paper-2); }

/* ---------- CVP ---------- */
.op-cvp-layout{ grid-template-columns: 300px 1fr; }
.op-cvp-form{ display: flex; flex-direction: column; gap: var(--space-4); }
.op-donation-label{ display: flex; align-items: center; gap: 8px; cursor: pointer; }
.op-donation-label input[type="checkbox"]{ width: 18px; height: 18px; }
.op-cvp-output .kv dd{ font-variant-numeric: tabular-nums; font-weight: 500; }
.op-flag-warn-note{ margin-top: var(--space-4); border-color: var(--warn); color: var(--warn); }
.op-cvp-invalid{ border-color: var(--warn); color: var(--warn); }

/* ---------- Mobile (<=760px), matches shell breakpoint ---------- */
@media (max-width: 760px){
  .app-operations{ padding: var(--space-4) var(--space-4) var(--space-6); }
  .op-cards, .op-cards-2{ grid-template-columns: 1fr; }
  .op-layout, .op-contrib-layout, .op-cvp-layout{ grid-template-columns: 1fr; }
  .op-aside{ position: static; }
  .op-controls-row{ gap: var(--space-2); }
  .op-input{ width: 76px; height: 40px; }
  .op-support-card{ flex-direction: column; align-items: flex-start; }

  /* Preview + row list stack deliberately rather than squeezing three columns. */
  .op-preview{ padding: var(--space-4); }
  .op-preview-head h3{ font-size: 19px; }
  .op-preview-split{ grid-template-columns: 1fr; gap: var(--space-4); }
  .op-preview-action{ width: 100%; justify-content: center; }
  .op-preview-table{ font-size: 13px; }
  .op-row-card{ grid-template-columns: 1fr; align-items: flex-start; gap: 4px; padding: var(--space-3) var(--space-4); }
  .op-row-card .op-card-open{ justify-self: start; }

  /* Hit targets + caption legibility at the mobile minimum. */
  .app-operations .seg > button,
  .app-operations .tabs > button{ min-height: 40px; }
  .app-operations .op-card-kicker{ font-size: 12px; }
}