/* Layout: desktop-app shell. Dark steel title bar, study tree on the left, dense worksheet grid on the right.
   Palette: steel-blue neutrals, one process-blue accent, semantic risk colours kept separate. */
:root {
  --chrome: #1b2633;
  --chrome-2: #243245;
  --chrome-fg: #dbe4ee;
  --chrome-dim: #8ea0b4;
  --bg: #eef1f5;
  --panel: #ffffff;
  --panel-2: #f6f8fb;
  --line: #d3dae3;
  --line-strong: #b6c1ce;
  --fg: #18222e;
  --fg-2: #4a5867;
  --fg-3: #7a8796;
  --accent: #1d63c4;
  --accent-soft: #e3edfa;
  --accent-fg: #ffffff;
  --focus: #3b86f0;
  --danger: #b4232a;
  --sel: #fff7d6;

  --risk-l: #4fa461;   --risk-l-bg: #dcf0df;
  --risk-m: #e2b62b;   --risk-m-bg: #fbf1cc;
  --risk-h: #e2771f;   --risk-h-bg: #fbe2cc;
  --risk-vh: #c9302c;  --risk-vh-bg: #f6d3d2;
  --risk-ink: #18222e;

  --font-ui: "IBM Plex Sans", "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-head: "IBM Plex Sans Condensed", "Arial Narrow", "IBM Plex Sans", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "Cascadia Mono", Consolas, monospace;

  --radius: 4px;
  --shadow: 0 6px 24px rgba(16, 28, 45, .18);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --chrome: #0f161f; --chrome-2: #1a2430; --chrome-fg: #dbe4ee; --chrome-dim: #7f91a5;
    --bg: #141b24; --panel: #1b2430; --panel-2: #212c3a; --line: #2e3b4b; --line-strong: #3f4f63;
    --fg: #e3e9f0; --fg-2: #a9b6c4; --fg-3: #7b8a9b;
    --accent: #5b9cf0; --accent-soft: #1e3352; --accent-fg: #0c1520; --focus: #6aa8ff; --danger: #ff6b6b; --sel: #3a3420;
    --risk-l-bg: #1f3a26; --risk-m-bg: #3d3519; --risk-h-bg: #44301b; --risk-vh-bg: #4a2224; --risk-ink: #0c1520;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --chrome: #0f161f; --chrome-2: #1a2430; --chrome-fg: #dbe4ee; --chrome-dim: #7f91a5;
  --bg: #141b24; --panel: #1b2430; --panel-2: #212c3a; --line: #2e3b4b; --line-strong: #3f4f63;
  --fg: #e3e9f0; --fg-2: #a9b6c4; --fg-3: #7b8a9b;
  --accent: #5b9cf0; --accent-soft: #1e3352; --accent-fg: #0c1520; --focus: #6aa8ff; --danger: #ff6b6b; --sel: #3a3420;
  --risk-l-bg: #1f3a26; --risk-m-bg: #3d3519; --risk-h-bg: #44301b; --risk-vh-bg: #4a2224; --risk-ink: #0c1520;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font: 13px/1.4 var(--font-ui);
}
body::before { content: ""; position: fixed; inset: 0 0 auto; height: env(safe-area-inset-top, 0px); z-index: 10; background: var(--chrome); }
button, input, select, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 1px; }
h1, h2, h3 { font-family: var(--font-head); text-wrap: balance; margin: 0; }
.num, td.rr, .tabular { font-variant-numeric: tabular-nums; }

/* ---------- App shell ---------- */
.app { display: grid; grid-template-rows: auto auto 1fr auto; height: 100%; }
.titlebar {
  display: flex; align-items: center; gap: 12px; background: var(--chrome); color: var(--chrome-fg);
  padding-block: 6px; padding-left: max(12px, env(safe-area-inset-left, 0px)); padding-right: max(12px, env(safe-area-inset-right, 0px));
  min-width: 0;
}
.brand { display: flex; align-items: center; gap: 8px; font-family: var(--font-head); font-weight: 600; font-size: 15px; letter-spacing: .02em; white-space: nowrap; }
.brand-mark { width: 22px; height: 22px; display: grid; place-items: center; }
.study-name { color: var(--chrome-dim); font-size: 12px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; min-width: 0; flex: 1; }
.study-name b { color: var(--chrome-fg); font-weight: 500; }
.tb-actions { display: flex; gap: 4px; flex-wrap: wrap; justify-content: flex-end; }
.tb-btn {
  background: transparent; border: 1px solid transparent; color: var(--chrome-fg); padding: 4px 9px; border-radius: var(--radius);
  cursor: pointer; display: inline-flex; align-items: center; gap: 6px; font-size: 12px; white-space: nowrap;
}
.tb-btn:hover { background: var(--chrome-2); border-color: #34465c; }
.tb-btn svg { width: 15px; height: 15px; }

.ribbon {
  display: flex; gap: 2px; background: var(--chrome-2); padding-left: max(8px, env(safe-area-inset-left, 0px)); padding-right: max(8px, env(safe-area-inset-right, 0px));
  overflow-x: auto; scrollbar-width: none;
}
.ribbon a {
  color: var(--chrome-dim); text-decoration: none; padding: 7px 12px 6px; font-size: 12px; border-bottom: 2px solid transparent; white-space: nowrap;
  text-transform: uppercase; letter-spacing: .06em; font-weight: 500;
}
.ribbon a:hover { color: var(--chrome-fg); }
.ribbon a.active { color: var(--chrome-fg); border-bottom-color: var(--accent); }

.workspace { display: grid; grid-template-columns: 260px 1fr; min-height: 0; }
.sidebar { background: var(--panel); border-right: 1px solid var(--line); overflow: auto; display: flex; flex-direction: column; min-height: 0; }
.main { overflow: auto; min-width: 0; min-height: 0; }
.statusbar {
  display: flex; gap: 18px; background: var(--panel-2); border-top: 1px solid var(--line); color: var(--fg-3); font-size: 11px;
  padding-block: 3px; padding-left: max(12px, env(safe-area-inset-left, 0px)); padding-right: max(12px, env(safe-area-inset-right, 0px));
  overflow: hidden; white-space: nowrap;
}
.statusbar .ok { color: var(--risk-l); }

/* ---------- Sidebar tree ---------- */
.side-head { display: flex; align-items: center; justify-content: space-between; padding: 10px 12px 6px; }
.side-head h3 { font-size: 11px; text-transform: uppercase; letter-spacing: .08em; color: var(--fg-3); font-family: var(--font-ui); font-weight: 600; }
.tree { list-style: none; margin: 0; padding: 0 6px 10px; }
.tree li > a {
  display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 8px; padding: 5px 8px; border-radius: var(--radius);
  color: var(--fg); text-decoration: none; min-width: 0;
}
.tree li > a:hover { background: var(--panel-2); }
.tree li > a.active { background: var(--accent-soft); color: var(--fg); box-shadow: inset 2px 0 0 var(--accent); }
.tree .label { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tree .tag { font-family: var(--font-mono); font-size: 11px; color: var(--fg-3); }
.tree .count { font-size: 11px; color: var(--fg-3); font-variant-numeric: tabular-nums; }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--line-strong); }
.status-dot.prog { background: var(--risk-m); }
.status-dot.done { background: var(--risk-l); }
.side-sep { border-top: 1px solid var(--line); margin: 4px 0; }

/* ---------- Generic UI ---------- */
.page { padding-block: 18px 40px; padding-left: max(20px, env(safe-area-inset-left, 0px)); padding-right: max(20px, env(safe-area-inset-right, 0px)); max-width: 1180px; }
.page.wide { max-width: none; }
.page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 14px; }
.page-head h1 { font-size: 22px; font-weight: 600; }
.eyebrow { font-size: 11px; text-transform: uppercase; letter-spacing: .08em; color: var(--fg-3); font-weight: 600; margin-bottom: 2px; }
.btn {
  display: inline-flex; align-items: center; gap: 6px; padding: 5px 11px; border-radius: var(--radius); border: 1px solid var(--line-strong);
  background: var(--panel); color: var(--fg); cursor: pointer; font-size: 12.5px; white-space: nowrap;
}
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-fg); }
.btn.primary:hover { filter: brightness(1.08); }
.btn.danger { color: var(--danger); }
.btn.ghost { border-color: transparent; background: transparent; }
.btn.ghost:hover { background: var(--panel-2); border-color: var(--line); }
.btn.sm { padding: 2px 7px; font-size: 11.5px; }
.btn svg { width: 14px; height: 14px; }
.btn-row { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); }
.panel-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 9px 14px; border-bottom: 1px solid var(--line); background: var(--panel-2); }
.panel-head h2 { font-size: 14px; font-weight: 600; }
.panel-body { padding: 14px; }
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 14px; }
.stack { display: grid; gap: 14px; }

.form-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 10px 14px; }
.field { display: grid; gap: 3px; min-width: 0; }
.field.span-2 { grid-column: span 2; }
.field.span-all { grid-column: 1 / -1; }
.field label { font-size: 11px; color: var(--fg-2); font-weight: 600; text-transform: uppercase; letter-spacing: .05em; }
.input, .field input, .field select, .field textarea {
  width: 100%; border: 1px solid var(--line-strong); background: var(--panel); border-radius: 3px; padding: 5px 7px; min-width: 0;
}
.field textarea { resize: vertical; min-height: 54px; }
.input:focus, .field input:focus, .field select:focus, .field textarea:focus { border-color: var(--focus); outline: none; box-shadow: 0 0 0 2px var(--accent-soft); }

table.data { width: 100%; border-collapse: collapse; font-size: 12.5px; }
table.data th { text-align: left; font-weight: 600; color: var(--fg-2); font-size: 11px; text-transform: uppercase; letter-spacing: .05em; background: var(--panel-2); border-bottom: 1px solid var(--line-strong); padding: 6px 8px; white-space: nowrap; position: sticky; top: 0; z-index: 1; }
table.data td { border-bottom: 1px solid var(--line); padding: 4px 8px; vertical-align: top; }
table.data tr:hover td { background: var(--panel-2); }
table.data td input, table.data td select, table.data td textarea { width: 100%; border: 1px solid transparent; background: transparent; padding: 3px 4px; border-radius: 3px; }
table.data td input:hover, table.data td select:hover, table.data td textarea:hover { border-color: var(--line); }
table.data td input:focus, table.data td select:focus, table.data td textarea:focus { border-color: var(--focus); background: var(--panel); outline: none; }
.scroll-x { overflow-x: auto; }
.empty { padding: 28px; text-align: center; color: var(--fg-3); }

.chip { display: inline-flex; align-items: center; gap: 4px; font-size: 11px; padding: 1px 7px; border-radius: 10px; border: 1px solid var(--line); background: var(--panel-2); white-space: nowrap; }
.chip.open { border-color: var(--risk-h); }
.chip.progress { border-color: var(--risk-m); }
.chip.closed { border-color: var(--risk-l); color: var(--fg-2); }
.pill-risk { display: inline-block; min-width: 26px; text-align: center; font-weight: 700; font-size: 11px; padding: 2px 5px; border-radius: 3px; color: var(--risk-ink); }
.r-L { background: var(--risk-l); } .r-M { background: var(--risk-m); } .r-H { background: var(--risk-h); } .r-VH { background: var(--risk-vh); color: #fff; }
.rb-L { background: var(--risk-l-bg); } .rb-M { background: var(--risk-m-bg); } .rb-H { background: var(--risk-h-bg); } .rb-VH { background: var(--risk-vh-bg); }

/* ---------- Dashboard ---------- */
.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; margin-bottom: 14px; }
.kpi { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px 14px; }
.kpi .k { font-size: 11px; color: var(--fg-3); text-transform: uppercase; letter-spacing: .06em; font-weight: 600; }
.kpi .v { font-family: var(--font-head); font-size: 28px; font-weight: 600; font-variant-numeric: tabular-nums; line-height: 1.15; }
.kpi .s { font-size: 11.5px; color: var(--fg-2); }
.bar-track { height: 6px; background: var(--panel-2); border-radius: 3px; overflow: hidden; margin-top: 6px; border: 1px solid var(--line); }
.bar-fill { height: 100%; background: var(--accent); }
.riskbars { display: grid; gap: 10px; }
.riskbar-row { display: grid; grid-template-columns: 110px 1fr 40px; gap: 10px; align-items: center; }
.riskbar-row .lab { font-size: 12px; color: var(--fg-2); }
.stackbar { display: flex; height: 18px; border-radius: 3px; overflow: hidden; background: var(--panel-2); border: 1px solid var(--line); }
.stackbar > span { display: block; height: 100%; }
.legend { display: flex; gap: 12px; flex-wrap: wrap; font-size: 11.5px; color: var(--fg-2); margin-top: 10px; }
.legend i { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 4px; vertical-align: -1px; }

/* ---------- Node header & worksheet ---------- */
.node-head { display: grid; grid-template-columns: 1fr auto; gap: 12px; align-items: start; margin-bottom: 10px; }
.node-title { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.node-title .nid { font-family: var(--font-mono); font-size: 13px; color: var(--accent); background: var(--accent-soft); padding: 1px 7px; border-radius: 3px; }
.node-title input { font-family: var(--font-head); font-size: 21px; font-weight: 600; border: 1px solid transparent; background: transparent; padding: 1px 4px; border-radius: 3px; min-width: 0; width: min(560px, 100%); }
.node-title input:hover { border-color: var(--line); }
.node-title input:focus { border-color: var(--focus); outline: none; background: var(--panel); }
details.node-info { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); margin-bottom: 10px; }
details.node-info > summary { cursor: pointer; padding: 8px 12px; font-weight: 600; font-size: 12.5px; color: var(--fg-2); list-style: none; display: flex; gap: 8px; align-items: center; }
details.node-info > summary::before { content: "▸"; color: var(--fg-3); transition: transform .15s; }
details.node-info[open] > summary::before { transform: rotate(90deg); }
details.node-info > summary .intent-preview { font-weight: 400; color: var(--fg-3); overflow: hidden; white-space: nowrap; text-overflow: ellipsis; min-width: 0; flex: 1; }
details.node-info .panel-body { border-top: 1px solid var(--line); }

.ws-toolbar { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; background: var(--panel); border: 1px solid var(--line); border-bottom: none; border-radius: var(--radius) var(--radius) 0 0; padding: 6px 8px; }
.ws-toolbar .sep { width: 1px; height: 20px; background: var(--line); margin: 0 4px; }
.ws-toolbar .grow { flex: 1; }
.ws-toolbar .input { width: 180px; padding: 3px 7px; }
.ws-wrap { overflow: auto; border: 1px solid var(--line); border-radius: 0 0 var(--radius) var(--radius); background: var(--panel); max-height: calc(100vh - 230px); }
table.ws { border-collapse: separate; border-spacing: 0; width: 100%; min-width: 1720px; table-layout: fixed; font-size: 12.5px; }
table.ws th {
  position: sticky; top: 0; z-index: 2; background: var(--chrome-2); color: var(--chrome-fg); font-weight: 600; font-size: 11px;
  text-transform: uppercase; letter-spacing: .05em; padding: 7px 6px; text-align: left; border-right: 1px solid #34465c; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
table.ws th.c { text-align: center; }
table.ws td { border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); vertical-align: top; padding: 0; position: relative; background: var(--panel); }
table.ws tr.dev-first td { border-top: 2px solid var(--line-strong); }
table.ws td.dev { background: var(--panel-2); }
table.ws td.dev.nc { background: repeating-linear-gradient(135deg, var(--panel-2), var(--panel-2) 6px, var(--panel) 6px, var(--panel) 12px); }
.cell-ta {
  display: block; width: 100%; border: none; background: transparent; resize: none; padding: 6px 7px; min-height: 30px; overflow: hidden; line-height: 1.4;
}
.cell-ta:focus { outline: none; background: var(--sel); box-shadow: inset 0 0 0 2px var(--focus); }
.cell-ta::placeholder { color: var(--fg-3); font-style: italic; }
.dev-label { padding: 6px 7px 0; display: flex; gap: 6px; align-items: baseline; flex-wrap: wrap; }
.dev-num { font-family: var(--font-mono); font-size: 11px; color: var(--fg-3); }
.gw { font-weight: 700; color: var(--accent); }
.par { font-weight: 600; }
.cell-ref { font-family: var(--font-mono); font-size: 10.5px; color: var(--fg-3); padding: 4px 7px 0; display: block; }
.cell-tools { position: absolute; right: 3px; top: 3px; display: none; gap: 2px; z-index: 1; background: var(--panel); border-radius: 3px; box-shadow: 0 1px 3px rgba(0,0,0,.15); }
td:hover > .cell-tools, td:focus-within > .cell-tools { display: flex; }
.icon-btn { border: 1px solid var(--line); background: var(--panel); color: var(--fg-2); width: 22px; height: 22px; border-radius: 3px; display: grid; place-items: center; cursor: pointer; padding: 0; }
.icon-btn:hover { color: var(--accent); border-color: var(--accent); }
.icon-btn.del:hover { color: var(--danger); border-color: var(--danger); }
.icon-btn svg { width: 13px; height: 13px; }
td.sl { text-align: center; }
td.sl select { appearance: none; -webkit-appearance: none; border: none; background: transparent; width: 100%; height: 30px; text-align: center; text-align-last: center; cursor: pointer; font-weight: 600; font-variant-numeric: tabular-nums; }
td.sl select:focus { outline: none; box-shadow: inset 0 0 0 2px var(--focus); }
td.rr { text-align: center; vertical-align: middle; }
td.rr .pill-risk { margin: 4px 0; }
.recs { padding: 4px 5px 6px; display: grid; gap: 4px; }
.rec { display: grid; grid-template-columns: auto 1fr; gap: 4px; align-items: start; border: 1px solid var(--line); border-radius: 3px; background: var(--panel-2); }
.rec .rnum { font-family: var(--font-mono); font-size: 10.5px; padding: 6px 0 0 6px; color: var(--accent); cursor: pointer; white-space: nowrap; }
.rec .cell-ta { padding: 5px 6px; min-height: 26px; }
.rec-meta { grid-column: 1 / -1; display: flex; gap: 4px; padding: 0 5px 4px; align-items: center; }
.rec-meta input { flex: 1; min-width: 0; border: 1px solid transparent; background: transparent; font-size: 11px; padding: 1px 4px; color: var(--fg-2); border-radius: 3px; }
.rec-meta input:focus { border-color: var(--focus); outline: none; background: var(--panel); }
.rec-meta .icon-btn { width: 18px; height: 18px; }
.add-link { border: 1px dashed var(--line-strong); background: transparent; color: var(--fg-3); border-radius: 3px; padding: 2px 6px; font-size: 11px; cursor: pointer; text-align: left; }
.add-link:hover { color: var(--accent); border-color: var(--accent); }
tr.hl td { animation: flash 1.2s ease-out; }
@keyframes flash { from { background: var(--accent-soft); } }
@media (prefers-reduced-motion: reduce) { tr.hl td { animation: none; } details.node-info > summary::before { transition: none; } }

/* ---------- Risk matrix ---------- */
.matrix { border-collapse: collapse; font-size: 12px; }
.matrix th, .matrix td { border: 1px solid var(--line-strong); padding: 0; }
.matrix th { background: var(--panel-2); font-weight: 600; padding: 6px 8px; text-align: left; vertical-align: middle; }
.matrix td.cell { width: 86px; height: 52px; text-align: center; cursor: pointer; font-weight: 700; color: var(--risk-ink); user-select: none; }
.matrix td.cell:hover { outline: 2px solid var(--fg); outline-offset: -2px; }
.matrix td.cell.readonly { cursor: default; }
.matrix td.cell.readonly:hover { outline: none; }
.matrix .axis { writing-mode: vertical-rl; transform: rotate(180deg); text-align: center; font-size: 11px; text-transform: uppercase; letter-spacing: .08em; color: var(--fg-2); }
.matrix .lvl { font-family: var(--font-mono); color: var(--fg-3); margin-right: 6px; }
.matrix td.cell small { display: block; font-weight: 500; font-size: 10.5px; }
.matrix td.cell.count b { font-size: 16px; }

/* ---------- Deviation generator ---------- */
table.gen { border-collapse: collapse; font-size: 12px; }
table.gen th { padding: 4px 6px; font-weight: 600; background: var(--panel-2); border: 1px solid var(--line); white-space: nowrap; }
table.gen th.rot { height: 110px; vertical-align: bottom; }
table.gen th.rot span { writing-mode: vertical-rl; transform: rotate(180deg); }
table.gen td { border: 1px solid var(--line); text-align: center; padding: 0; }
table.gen td label { display: grid; place-items: center; width: 30px; height: 26px; cursor: pointer; }
table.gen td.sug { background: var(--accent-soft); }
table.gen td.exists { background: var(--panel-2); }

/* ---------- Dialog & toast ---------- */
dialog { border: 1px solid var(--line-strong); border-radius: 6px; padding: 0; background: var(--panel); color: var(--fg); box-shadow: var(--shadow); max-width: min(920px, calc(100vw - 32px)); width: 100%; max-height: calc(100vh - 48px); }
dialog::backdrop { background: rgba(10, 18, 28, .45); }
.dlg { display: grid; grid-template-rows: auto 1fr auto; max-height: calc(100vh - 50px); }
.dlg-head { padding: 12px 16px; border-bottom: 1px solid var(--line); display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.dlg-head h2 { font-size: 16px; }
.dlg-body { padding: 14px 16px; overflow: auto; }
.dlg-foot { padding: 10px 16px; border-top: 1px solid var(--line); display: flex; justify-content: flex-end; gap: 8px; background: var(--panel-2); flex-wrap: wrap; }
.toast { position: fixed; bottom: calc(34px + env(safe-area-inset-bottom, 0px)); right: max(16px, env(safe-area-inset-right, 0px)); background: var(--chrome); color: var(--chrome-fg); padding: 8px 14px; border-radius: var(--radius); box-shadow: var(--shadow); z-index: 50; font-size: 12.5px; }
.muted { color: var(--fg-3); }
.small { font-size: 11.5px; }
.mono { font-family: var(--font-mono); }
.help { font-size: 12px; color: var(--fg-2); max-width: 70ch; }
.study-card { display: grid; grid-template-columns: 1fr auto; gap: 10px; align-items: center; padding: 10px 12px; border: 1px solid var(--line); border-radius: var(--radius); }
.study-card.current { border-color: var(--accent); background: var(--accent-soft); }

/* ---------- Report ---------- */
.report { background: #fff; color: #111; max-width: 1100px; margin: 0 auto; padding: 32px 36px; font-size: 11.5px; border: 1px solid var(--line); }
.report h1 { font-size: 24px; margin-bottom: 4px; }
.report h2 { font-size: 16px; margin: 26px 0 8px; border-bottom: 2px solid #1b2633; padding-bottom: 3px; }
.report h3 { font-size: 13px; margin: 18px 0 6px; }
.report table { width: 100%; border-collapse: collapse; margin-bottom: 8px; }
.report th, .report td { border: 1px solid #9aa6b3; padding: 3px 5px; vertical-align: top; text-align: left; }
.report th { background: #dfe5ec; font-size: 10.5px; text-transform: uppercase; letter-spacing: .03em; }
.report .kv { display: grid; grid-template-columns: 180px 1fr; gap: 3px 12px; }
.report .kv dt { font-weight: 600; }
.report .kv dd { margin: 0; white-space: pre-wrap; }
.report .cover { border-bottom: 3px solid #1b2633; padding-bottom: 14px; margin-bottom: 10px; }
.report .pre { white-space: pre-wrap; }
.report .r-L, .report .r-M, .report .r-H, .report .r-VH { -webkit-print-color-adjust: exact; print-color-adjust: exact; }

@media print {
  @page { size: A4 landscape; margin: 12mm; }
  body { background: #fff; }
  .titlebar, .ribbon, .sidebar, .statusbar, .no-print, .toast { display: none !important; }
  .app, .workspace, .main { display: block; height: auto; overflow: visible; }
  .page { padding: 0; max-width: none; }
  .report { border: none; padding: 0; max-width: none; }
  .report h2 { break-after: avoid; }
  .report tr { break-inside: avoid; }
  .page-break { break-before: page; }
}

/* ---------- Responsive ---------- */
.menu-btn { display: none; }
@media (max-width: 860px) {
  .workspace { grid-template-columns: 1fr; }
  .sidebar { position: fixed; z-index: 20; top: 0; bottom: 0; left: 0; width: min(300px, 85vw); transform: translateX(-102%); transition: transform .2s; box-shadow: var(--shadow); padding-top: env(safe-area-inset-top, 0px); }
  .sidebar.open { transform: none; }
  .menu-btn { display: inline-flex; }
  .tb-btn .lbl { display: none; }
  .study-name { display: none; }
  .field.span-2 { grid-column: auto; }
  .page { padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px)); }
  .ws-wrap { max-height: none; }
}
table.ws thead tr:first-child th { top: 0; }
table.ws th.h2 { top: 40px; }
.tb-btn.tb-new { background: var(--accent); border-color: var(--accent); color: #fff; }
.tb-btn.tb-new:hover { background: var(--accent); filter: brightness(1.1); }
.field.req > label::after { content: " *"; color: var(--danger); }
.field.invalid input, .field.invalid select { border-color: var(--danger); box-shadow: 0 0 0 2px var(--risk-vh-bg); }

.rec-places { grid-column: 1 / -1; font-family: var(--font-mono); font-size: 10.5px; color: var(--fg-3); padding: 0 6px 4px; }
.report table.ws-rep { font-size: 10px; }
.report table.ws-rep th { font-size: 9px; text-align: center; }

.study-name .sn-part { margin-left: 14px; }
.study-name .sn-k { font-size: 10px; text-transform: uppercase; letter-spacing: .06em; color: var(--chrome-dim); opacity: .8; }
.study-name .sn-part { color: var(--chrome-fg); }

table.ws thead tr:first-child th { height: 40px; white-space: normal; line-height: 1.2; vertical-align: middle; }
.study-name b { display: inline-block; max-width: 280px; overflow: hidden; text-overflow: ellipsis; vertical-align: bottom; }
@media (max-width: 1500px) { .tb-btn:not(.tb-new) .lbl { display: none; } }
table.data td.mono { white-space: nowrap; }
table.data.wrap-head th { white-space: normal; vertical-align: bottom; min-width: 70px; line-height: 1.25; }

.trail { display: inline-flex; align-items: center; gap: 4px; white-space: nowrap; }
.trail i { font-style: normal; color: var(--fg-3); }
.report .trail i { color: #556; }
.report td:first-child b { white-space: nowrap; }

/* ---------- Drawings ---------- */
.dw-layout { display: grid; grid-template-columns: minmax(280px, 380px) 1fr; gap: 14px; align-items: start; }
.dw-list { max-height: calc(100vh - 230px); overflow: auto; }
.dw-list tr.dw-sel td { background: var(--accent-soft); }
.dw-view { display: grid; grid-template-rows: auto 1fr; min-height: calc(100vh - 230px); min-width: 0; }
.dw-head { padding: 10px 12px; border-bottom: 1px solid var(--line); display: grid; gap: 8px; }
.dw-links { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.dw-links .grow { flex: 1; }
.chip.dw-node { cursor: pointer; font-family: var(--font-mono); }
.chip.dw-node.on { background: var(--accent); border-color: var(--accent); color: var(--accent-fg); }
.dw-stage { position: relative; overflow: hidden; background: var(--panel-2); min-height: 420px; cursor: grab; touch-action: none; }
.dw-stage.dragging { cursor: grabbing; }
.dw-img { position: absolute; left: 0; top: 0; transform-origin: 0 0; max-width: none; background: #fff; box-shadow: 0 2px 10px rgba(0,0,0,.15); user-select: none; }
.dw-pdf { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; background: #fff; }
body.dropping .dw-layout { outline: 3px dashed var(--accent); outline-offset: 6px; }
.report .dw-fig { margin: 0 0 12px; }
.report .dw-fig img { width: 100%; border: 1px solid #9aa6b3; }
.report .dw-fig figcaption { font-size: 11px; margin-top: 4px; }
@media (max-width: 860px) { .dw-layout { grid-template-columns: 1fr; } .dw-list { max-height: 260px; } }
@media print { .report .dw-fig img { max-height: 175mm; width: auto; max-width: 100%; } }