/* QueueSim Cloud (app.queuesim.com). Tokens come from /css/qs-tokens.css (espresso dark).
   Light mode = cream ground; dark = espresso. Text starts large (17px) with an A−/A+ control. */

:root {
  --c-bg: var(--espresso);
  --c-panel: var(--espresso-2);
  --c-raised: var(--espresso-3);
  --c-well: var(--espresso-4);
  --c-text: var(--cream);
  --c-text-2: #B8B2A8;
  --c-text-3: #948E84;
  --c-rule: rgba(240,237,230,0.14);
  --c-rule-strong: rgba(240,237,230,0.28);
  --c-accent: #6FA8E6;
  --c-node: #1F1C19;
  --c-node-line: #6FA8E6;
  --c-grid: rgba(240,237,230,0.07);
  --c-bad: #F87171;
  --c-good: #4ADE80;
  --c-warn: #FBBF24;
  --c-pill: #1A4F7E;
  --c-on-pill: #F0EDE6;
  --c-shadow: rgba(0,0,0,0.55);
  color-scheme: dark;
}
:root[data-theme="light"] {
  --c-bg: #F0EDE6;
  --c-panel: #FFFFFF;
  --c-raised: #F7F5F0;
  --c-well: #E6E1D7;
  --c-text: #141210;
  --c-text-2: #3D3833;
  --c-text-3: #5E574F;
  --c-rule: rgba(20,18,16,0.14);
  --c-rule-strong: rgba(20,18,16,0.3);
  --c-accent: #2A64AA;
  --c-node: #FFFFFF;
  --c-node-line: #2A64AA;
  --c-grid: rgba(20,18,16,0.08);
  --c-bad: #B42318;
  --c-good: #1E7B3A;
  --c-warn: #8A5A00;
  --c-pill: #1A4F7E;
  --c-on-pill: #FFFFFF;
  --c-shadow: rgba(20,18,16,0.22);
  color-scheme: light;
}
@media (prefers-color-scheme: light) {
  :root[data-theme="auto"] {
    --c-bg: #F0EDE6;
    --c-panel: #FFFFFF;
    --c-raised: #F7F5F0;
    --c-well: #E6E1D7;
    --c-text: #141210;
    --c-text-2: #3D3833;
    --c-text-3: #5E574F;
    --c-rule: rgba(20,18,16,0.14);
    --c-rule-strong: rgba(20,18,16,0.3);
    --c-accent: #2A64AA;
    --c-node: #FFFFFF;
    --c-node-line: #2A64AA;
    --c-grid: rgba(20,18,16,0.08);
    --c-bad: #B42318;
    --c-good: #1E7B3A;
    --c-warn: #8A5A00;
    --c-pill: #1A4F7E;
    --c-on-pill: #FFFFFF;
    --c-shadow: rgba(20,18,16,0.22);
    color-scheme: light;
  }
}

/* Text size: 17px base, A−/A+ steps. */
html { font-size: 17px; }
html.ts-1 { font-size: 15px; }
html.ts-3 { font-size: 19px; }
html.ts-4 { font-size: 21px; }
html.ts-5 { font-size: 24px; }

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font-text);
  font-size: 1rem;
  line-height: 1.45;
}
button, input, select { font: inherit; color: inherit; }
a { color: var(--c-accent); }
h2 { font-size: 0.82rem; font-family: var(--font-mono); text-transform: uppercase; letter-spacing: 0.06em; color: var(--c-text-3); margin: 0 0 0.6rem; font-weight: 500; }
.hint { color: var(--c-text-2); margin: 0 0 0.6rem; font-size: 0.92rem; }
[hidden] { display: none !important; }
:focus-visible { outline: 2px solid var(--c-accent); outline-offset: 2px; }

/* ── Header ── */
.top {
  display: flex; flex-wrap: wrap; align-items: center; gap: 0.6rem 1.2rem;
  padding: 0.6rem 1rem; background: var(--c-panel); border-bottom: 1px solid var(--c-rule);
}
.brand { display: flex; align-items: center; gap: 0.5rem; text-decoration: none; color: var(--c-text); }
.brand-q { font-family: var(--font-script); color: #4A90D9; font-size: 1.7rem; line-height: 1; }
.brand-word { font-family: var(--font-display); font-size: 1.15rem; }
.brand-word b { color: var(--c-accent); font-weight: 600; }
.badge { font-family: var(--font-mono); font-size: 0.78rem; padding: 0.15rem 0.5rem; border: 1px solid var(--c-rule-strong); border-radius: 999px; color: var(--c-text-2); }
.views { display: flex; gap: 0.2rem; background: var(--c-well); padding: 0.2rem; border-radius: 10px; }
.views button { border: 0; background: transparent; padding: 0.3rem 0.9rem; border-radius: 8px; cursor: pointer; color: var(--c-text-2); }
.views button[aria-selected="true"] { background: var(--c-panel); color: var(--c-text); box-shadow: 0 1px 2px var(--c-shadow); }
.runbar { display: flex; align-items: center; gap: 0.7rem; margin-left: auto; flex-wrap: wrap; }
.runbar label { display: flex; align-items: center; gap: 0.4rem; font-size: 0.9rem; color: var(--c-text-2); }
@media (max-width: 1280px) {
  /* Keep text size + theme with the run controls when the header wraps. */
  .top { row-gap: 0.4rem; }
  .prefs { margin-left: auto; }
}
select, input[type="text"], input[type="number"], input[type="password"] {
  background: var(--c-raised); border: 1px solid var(--c-rule-strong); border-radius: 8px; padding: 0.3rem 0.5rem; min-height: 2.1rem;
}
input[type="number"] { width: 6.5rem; }
.btn-run {
  background: var(--caramel); color: #141210; border: 0; border-radius: 10px; padding: 0.45rem 1.1rem;
  font-weight: 600; cursor: pointer; min-height: 2.3rem;
}
.btn-run:hover { background: #DEB488; }
.btn-run:disabled { opacity: 0.6; cursor: progress; }
.btn-ghost {
  background: transparent; border: 1px solid var(--c-rule-strong); border-radius: 8px; padding: 0.3rem 0.7rem; cursor: pointer; min-height: 2.1rem;
}
.btn-ghost:hover { border-color: var(--c-accent); }
.btn-danger { background: transparent; border: 1px solid var(--c-bad); color: var(--c-bad); border-radius: 8px; padding: 0.3rem 0.7rem; cursor: pointer; }
.prefs { display: flex; align-items: center; gap: 0.5rem; }
.seg { display: flex; align-items: center; border: 1px solid var(--c-rule-strong); border-radius: 8px; overflow: hidden; }
.seg button { background: transparent; border: 0; padding: 0.25rem 0.55rem; cursor: pointer; }
.seg span { font-family: var(--font-mono); font-size: 0.82rem; padding: 0 0.3rem; color: var(--c-text-2); min-width: 3.2em; text-align: center; }

/* ── Model view ── */
.layout { flex: 1; display: grid; grid-template-columns: minmax(300px, 400px) 1fr; min-height: 0; }
.side { padding: 0.8rem; display: flex; flex-direction: column; gap: 0.8rem; overflow-y: auto; max-height: calc(100vh - 7rem); border-right: 1px solid var(--c-rule); }
.card { background: var(--c-panel); border: 1px solid var(--c-rule); border-radius: var(--radius); padding: 0.8rem 0.9rem; }
.field { display: flex; flex-direction: column; gap: 0.25rem; margin-bottom: 0.65rem; font-size: 0.92rem; color: var(--c-text-2); }
.field > input, .field > select { color: var(--c-text); }
.field-row { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.field-row .field { flex: 1; min-width: 6rem; }
.check { display: flex; align-items: center; gap: 0.45rem; margin: 0.4rem 0 0.5rem; font-size: 0.95rem; }
.check input { width: 1.1rem; height: 1.1rem; }
.sub { border-left: 2px solid var(--c-rule-strong); padding-left: 0.7rem; margin: 0 0 0.7rem; }
.type-tag { font-family: var(--font-mono); font-size: 0.78rem; color: var(--c-text-3); text-transform: uppercase; letter-spacing: 0.05em; }
.add-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(6.5rem, 1fr)); gap: 0.4rem; }
.add-grid button { background: var(--c-raised); border: 1px solid var(--c-rule-strong); border-radius: 8px; padding: 0.4rem; cursor: pointer; }
.add-grid button:hover { border-color: var(--c-accent); }
.staff-list, .samples { list-style: none; margin: 0 0 0.6rem; padding: 0; display: flex; flex-direction: column; gap: 0.35rem; }
.staff-list button, .samples button {
  width: 100%; text-align: left; background: var(--c-raised); border: 1px solid var(--c-rule); border-radius: 8px; padding: 0.45rem 0.6rem; cursor: pointer;
}
.staff-list button:hover, .samples button:hover { border-color: var(--c-accent); }
.staff-list button.sel { border-color: var(--c-accent); box-shadow: inset 0 0 0 1px var(--c-accent); }
.samples small, .staff-list small { display: block; color: var(--c-text-2); font-size: 0.85rem; }
.row-btns { display: flex; gap: 0.4rem; flex-wrap: wrap; }
.file-btn { position: relative; overflow: hidden; display: inline-flex; align-items: center; }
.file-btn input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.branch { display: flex; gap: 0.4rem; align-items: center; margin-bottom: 0.4rem; }
.branch select { flex: 1; min-width: 0; }
.branch input[type="number"] { width: 5rem; }
.icon-btn { background: transparent; border: 1px solid var(--c-rule-strong); border-radius: 6px; width: 2rem; height: 2rem; cursor: pointer; }
.hourly { display: grid; grid-template-columns: repeat(6, 1fr); gap: 0.3rem; margin: 0.3rem 0 0.7rem; }
.hourly label { display: flex; flex-direction: column; font-family: var(--font-mono); font-size: 0.75rem; color: var(--c-text-3); }
.hourly input { width: 100%; min-height: 1.9rem; padding: 0.15rem 0.3rem; }
.block-actions { display: flex; gap: 0.4rem; margin-top: 0.4rem; flex-wrap: wrap; }
.err-inline { color: var(--c-bad); font-size: 0.9rem; margin: 0.2rem 0 0.5rem; }

/* ── Canvas ── */
.canvas-wrap { position: relative; min-width: 0; min-height: 60vh; }
.canvas {
  position: absolute; inset: 0; overflow: auto;
  background-color: var(--c-bg);
  background-image: radial-gradient(var(--c-grid) 1.2px, transparent 1.2px);
  background-size: 20px 20px;
}
.canvas svg { display: block; }
.status { position: absolute; top: 0.6rem; left: 0.8rem; z-index: 2; font-family: var(--font-mono); font-size: 0.85rem; color: var(--c-text-2); background: var(--c-panel); border: 1px solid var(--c-rule); border-radius: 8px; padding: 0.2rem 0.6rem; }
.status:empty { display: none; }
.status.bad { color: var(--c-bad); }
.status.good { color: var(--c-good); }
.zoom { position: absolute; right: 0.8rem; top: 0.6rem; display: flex; gap: 0.3rem; z-index: 2; }
.zoom button { background: var(--c-panel); border: 1px solid var(--c-rule-strong); border-radius: 8px; min-width: 2.2rem; height: 2.2rem; cursor: pointer; }
.problems {
  position: absolute; left: 0.8rem; right: 0.8rem; bottom: 0.8rem; z-index: 2; max-height: 35%; overflow-y: auto;
  background: var(--c-panel); border: 1px solid var(--c-bad); border-radius: 12px; padding: 0.6rem 0.8rem;
}
.problems h3 { margin: 0 0 0.3rem; font-size: 0.95rem; color: var(--c-bad); }
.problems ul { margin: 0; padding-left: 1.1rem; }
.problems li { margin: 0.15rem 0; }
.problems button { background: none; border: 0; padding: 0; color: var(--c-accent); cursor: pointer; text-decoration: underline; }

/* SVG diagram */
.node rect, .node path.shape { fill: var(--c-node); stroke: var(--c-node-line); stroke-width: 1.5; }
.node .shadow { fill: var(--c-shadow); stroke: none; }
.node.sel rect.body, .node.sel path.shape { stroke-width: 3; }
.node.bad rect.body, .node.bad path.shape { stroke: var(--c-bad); stroke-width: 2.5; }
.node { cursor: pointer; }
.node .t-kind { font-family: var(--font-mono); font-size: 11px; fill: var(--c-text-3); text-transform: uppercase; letter-spacing: 0.05em; }
.node .t-name { font-family: var(--font-text); font-size: 15px; fill: var(--c-text); font-weight: 600; }
.node .t-detail { font-family: var(--font-mono); font-size: 12px; fill: var(--c-text-2); }
.node .pill rect { fill: var(--c-pill); stroke: none; }
.node .pill text { font-family: var(--font-mono); font-size: 12px; fill: var(--c-on-pill); }
.edge { fill: none; stroke: var(--c-text-3); stroke-width: 1.6; }
.edge.alt { stroke-dasharray: 5 4; }
.edge-label rect { fill: var(--c-panel); stroke: var(--c-rule-strong); }
.edge-label text { font-family: var(--font-mono); font-size: 11.5px; fill: var(--c-text-2); }
.arrow { fill: var(--c-text-3); }

/* ── Results ── */
.results { flex: 1; padding: 1rem; max-width: 1200px; width: 100%; margin: 0 auto; }
.findings { display: grid; grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr)); gap: 0.7rem; margin-bottom: 1.2rem; }
.finding { background: var(--c-panel); border: 1px solid var(--c-rule); border-radius: var(--radius); padding: 0.8rem 0.9rem; }
.finding .k { font-family: var(--font-mono); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--c-text-3); }
.finding .v { font-size: 1.6rem; font-weight: 600; margin: 0.15rem 0; }
.finding .d { color: var(--c-text-2); font-size: 0.92rem; }
.results h3 { font-size: 1.05rem; margin: 1.3rem 0 0.5rem; }
.table-wrap { overflow-x: auto; background: var(--c-panel); border: 1px solid var(--c-rule); border-radius: var(--radius); }
table { border-collapse: collapse; width: 100%; font-size: 0.95rem; }
th, td { padding: 0.5rem 0.7rem; text-align: right; border-bottom: 1px solid var(--c-rule); white-space: nowrap; }
th:first-child, td:first-child { text-align: left; }
th { font-family: var(--font-mono); font-weight: 500; font-size: 0.8rem; color: var(--c-text-3); text-transform: uppercase; letter-spacing: 0.04em; }
td .range { display: block; color: var(--c-text-3); font-size: 0.8rem; }
tr:last-child td { border-bottom: 0; }
.note { color: var(--c-text-2); font-size: 0.9rem; margin: 0.5rem 0 0; }
.stale { background: var(--c-panel); border: 1px solid var(--c-warn); color: var(--c-warn); border-radius: 10px; padding: 0.5rem 0.8rem; margin-bottom: 1rem; }

/* ── Modal ── */
.modal { position: fixed; inset: 0; background: rgba(0,0,0,0.6); display: flex; align-items: center; justify-content: center; z-index: 20; padding: 1rem; }
.modal-box { background: var(--c-panel); border: 1px solid var(--c-rule-strong); border-radius: var(--radius); padding: 1.2rem; max-width: 26rem; width: 100%; display: flex; flex-direction: column; gap: 0.7rem; }
.modal-box h2 { font-size: 1rem; }
.modal-box p { margin: 0; color: var(--c-text-2); }
.err { color: var(--c-bad) !important; }

.foot { display: flex; gap: 1rem; flex-wrap: wrap; padding: 0.6rem 1rem; border-top: 1px solid var(--c-rule); color: var(--c-text-3); font-size: 0.85rem; }

@media (max-width: 860px) {
  .layout { grid-template-columns: 1fr; }
  .side { max-height: none; border-right: 0; order: 2; }
  .canvas-wrap { min-height: 55vh; order: 1; }
  .runbar { margin-left: 0; }
}