/* Layout: QA workbench. Fixed left rail of modules, a working column on the right; documents render in the plant's
   controlled-document format (doc-control header, numbered sections). Collapses to a top scroller under 860px. */
:root {
  --paper: #f5f7f6;
  --surface: #ffffff;
  --sunk: #eef3f1;
  --ink: #16222b;
  --muted: #5a6871;
  --line: #d6ddda;
  --accent: #0a6b5c;
  --accent-ink: #ffffff;
  --accent-soft: #dff0eb;
  --warn: #8f5400;
  --warn-soft: #f8ebd6;
  --bad: #a3271d;
  --bad-soft: #f8e1de;
  --info: #3b5778;
  --info-soft: #e4eaf2;
  --good: #1f6b35;
  --good-soft: #e1f1e5;
  --f-display: "Spectral", Georgia, "Times New Roman", serif;
  --f-body: "Public Sans", -apple-system, "Segoe UI", Roboto, sans-serif;
  --f-mono: "IBM Plex Mono", ui-monospace, Menlo, Consolas, monospace;
  --radius: 5px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0f1517; --surface: #162024; --sunk: #1b282c; --ink: #e3ebe8; --muted: #9aa9ae; --line: #2b383c;
    --accent: #52c3ab; --accent-ink: #062520; --accent-soft: #15302a; --warn: #e3a64c; --warn-soft: #33281a;
    --bad: #ef8b80; --bad-soft: #3a1f1c; --info: #9fb8d8; --info-soft: #1b2634; --good: #7fd49a; --good-soft: #17301f; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #0f1517; --surface: #162024; --sunk: #1b282c; --ink: #e3ebe8; --muted: #9aa9ae; --line: #2b383c;
  --accent: #52c3ab; --accent-ink: #062520; --accent-soft: #15302a; --warn: #e3a64c; --warn-soft: #33281a;
  --bad: #ef8b80; --bad-soft: #3a1f1c; --info: #9fb8d8; --info-soft: #1b2634; --good: #7fd49a; --good-soft: #17301f; color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body { background: var(--paper); color: var(--ink); font: 400 14.5px/1.55 var(--f-body); margin: 0; }
button, input, select, textarea { font: inherit; color: inherit; }
a { color: var(--accent); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
h1, h2, h3, h4 { margin: 0; line-height: 1.25; text-wrap: balance; }
h1 { font: 600 1.7rem/1.2 var(--f-display); }
h2 { font: 600 1.25rem/1.25 var(--f-display); }
h3 { font: 700 0.98rem/1.3 var(--f-body); }
p { margin: 0; }
.mono { font-family: var(--f-mono); font-size: 0.88em; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.num { font-variant-numeric: tabular-nums; }
.eyebrow { font: 500 11px/1.2 var(--f-mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }

/* Shell */
.shell { display: grid; grid-template-columns: 228px minmax(0, 1fr); min-height: 100%; }
.rail { background: var(--surface); border-right: 1px solid var(--line); padding: 18px 12px; display: flex; flex-direction: column; gap: 4px; position: sticky; top: 0; height: 100vh; overflow-y: auto; }
.brand { padding: 4px 10px 16px; display: grid; gap: 2px; }
.brand b { font: 600 1.15rem/1.15 var(--f-display); }
.brand span { font: 500 10.5px/1.3 var(--f-mono); letter-spacing: 0.07em; text-transform: uppercase; color: var(--muted); }
.nav-btn { display: flex; align-items: center; justify-content: space-between; gap: 8px; width: 100%; text-align: left; background: none; border: 0; border-radius: var(--radius); padding: 8px 10px; cursor: pointer; color: var(--ink); font-weight: 500; }
.nav-btn:hover { background: var(--sunk); }
.nav-btn[aria-current="page"] { background: var(--accent-soft); color: var(--accent); font-weight: 700; }
.nav-btn .count { font: 500 11px/1 var(--f-mono); color: var(--muted); }
.rail .spacer { flex: 1; }
.rail .ai-status { margin: 10px 4px 0; padding: 10px; border: 1px solid var(--line); border-radius: var(--radius); font-size: 12.5px; display: grid; gap: 4px; }
.main { min-width: 0; display: flex; flex-direction: column; }
.topbar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px 18px; padding: 14px 28px; border-bottom: 1px solid var(--line); background: var(--surface); position: sticky; top: env(safe-area-inset-top, 0px); z-index: 5; }
.topbar .who { display: flex; align-items: center; gap: 10px; font-size: 13px; flex-wrap: wrap; }
.topbar select { padding: 5px 8px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.content { padding: 24px 28px 64px; display: grid; gap: 22px; max-width: 1180px; width: 100%; }

@media (max-width: 860px) {
  .shell { grid-template-columns: minmax(0, 1fr); }
  .rail { position: static; height: auto; flex-direction: row; overflow-x: auto; padding: 8px 12px; border-right: 0; border-bottom: 1px solid var(--line); gap: 2px; }
  .brand, .rail .spacer, .rail .ai-status { display: none; }
  .nav-btn { white-space: nowrap; width: auto; }
  .topbar { padding: 10px 16px; position: static; }
  .content { padding: 18px 16px 48px; }
}

/* Page header */
.page-head { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 12px 20px; }
.page-head > div:not(.actions) { display: grid; gap: 6px; min-width: 0; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 6px; border: 1px solid var(--line); background: var(--surface); border-radius: var(--radius); padding: 7px 13px; cursor: pointer; font-weight: 600; font-size: 13.5px; white-space: nowrap; }
.btn:hover { border-color: var(--muted); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn.primary:hover { filter: brightness(1.08); }
.btn.ghost { border-color: transparent; background: none; color: var(--accent); padding-inline: 6px; }
.btn.danger { color: var(--bad); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn.sm { padding: 4px 9px; font-size: 12.5px; }

/* Chips */
.chip { display: inline-flex; align-items: center; gap: 5px; font: 500 11px/1 var(--f-mono); letter-spacing: 0.03em; padding: 4px 7px; border-radius: 3px; white-space: nowrap; background: var(--sunk); color: var(--muted); }
.chip.good { background: var(--good-soft); color: var(--good); }
.chip.warn { background: var(--warn-soft); color: var(--warn); }
.chip.bad { background: var(--bad-soft); color: var(--bad); }
.chip.info { background: var(--info-soft); color: var(--info); }
.chip.accent { background: var(--accent-soft); color: var(--accent); }
.chip.cite { cursor: pointer; border: 1px solid transparent; background: var(--info-soft); color: var(--info); white-space: normal; text-align: left; line-height: 1.3; max-width: 100%; }
.chip.cite:hover { border-color: var(--info); }
.dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; background: var(--muted); }
.dot.good { background: var(--good); } .dot.warn { background: var(--warn); } .dot.bad { background: var(--bad); } .dot.accent { background: var(--accent); }

/* Cards and panels */
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 20px; display: grid; gap: 14px; min-width: 0; align-content: start; }
.card > header { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 6px 14px; }
.grid2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 18px; }
.grid3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.split { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 18px; align-items: start; }
@media (max-width: 1000px) { .split { grid-template-columns: minmax(0, 1fr); } }
.callout { border-left: 3px solid var(--info); background: var(--info-soft); padding: 10px 14px; border-radius: 0 var(--radius) var(--radius) 0; font-size: 13.5px; display: grid; gap: 4px; }
.callout.warn { border-color: var(--warn); background: var(--warn-soft); }
.callout.good { border-color: var(--good); background: var(--good-soft); }
.callout.bad { border-color: var(--bad); background: var(--bad-soft); }
.callout ul { margin: 0; padding-left: 18px; }

/* Stats */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 0; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.stat { padding: 14px 18px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); display: grid; gap: 4px; cursor: pointer; text-align: left; background: none; border-top: 0; border-left: 0; }
.stat:hover { background: var(--sunk); }
.stat b { font: 600 1.9rem/1 var(--f-display); font-variant-numeric: tabular-nums; }
.stat span { font-size: 12.5px; color: var(--muted); }

/* Tables */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
table { border-collapse: collapse; width: 100%; font-size: 13.5px; }
th, td { text-align: left; vertical-align: top; padding: 9px 12px; border-bottom: 1px solid var(--line); }
th { font: 500 11px/1.3 var(--f-mono); letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); background: var(--paper); white-space: nowrap; }
tr:last-child td { border-bottom: 0; }
tbody tr.clickable { cursor: pointer; }
tbody tr.clickable:hover td { background: var(--sunk); }
td.nowrap { white-space: nowrap; }

/* Forms */
.form { display: grid; gap: 14px; }
.row { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; }
.field { display: grid; gap: 5px; min-width: 0; }
.field > span { font-weight: 600; font-size: 13px; }
.field > small { color: var(--muted); font-size: 12px; }
.field input[type=text], .field input[type=date], .field input[type=password], .field input:not([type]), .field select, .field textarea, .input {
  width: 100%; padding: 8px 10px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface);
}
.field textarea, textarea.input { min-height: 84px; resize: vertical; line-height: 1.5; }
.checks { display: flex; flex-wrap: wrap; gap: 8px 16px; }
.checks label { display: inline-flex; gap: 6px; align-items: center; font-size: 13.5px; }

/* Controlled document */
.doc { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }
.doc-control { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); border-bottom: 1px solid var(--line); }
.doc-control div { padding: 10px 14px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); min-width: 0; }
.doc-control dt { font: 500 10.5px/1.3 var(--f-mono); letter-spacing: 0.07em; text-transform: uppercase; color: var(--muted); }
.doc-control dd { margin: 3px 0 0; font-weight: 600; font-size: 13.5px; overflow-wrap: anywhere; }
.doc-body { padding: 20px 24px 26px; display: grid; gap: 20px; }
.doc-body section { display: grid; gap: 8px; }
.doc-body h3 { font: 600 1.05rem/1.3 var(--f-display); }
.doc-body h4 { font-size: 13.5px; font-weight: 700; margin-top: 6px; }
.doc-body ul { margin: 0; padding-left: 20px; display: grid; gap: 4px; }
.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; counter-reset: step var(--start, 0); }
.steps li { display: grid; grid-template-columns: 30px minmax(0, 1fr); gap: 8px; counter-increment: step; }
.steps li::before { content: counter(step); font: 500 12px/1.9 var(--f-mono); color: var(--muted); text-align: right; }
.steps .cites { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 3px; }
.resp { display: grid; grid-template-columns: minmax(120px, 200px) minmax(0, 1fr); gap: 6px 16px; }
.resp dt { font-weight: 700; } .resp dd { margin: 0; }

/* Stepper */
.stepper { display: flex; flex-wrap: wrap; gap: 0; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); overflow: hidden; }
.stepper button { flex: 1 1 140px; border: 0; border-right: 1px solid var(--line); background: none; padding: 10px 12px; text-align: left; cursor: pointer; display: grid; gap: 2px; }
.stepper button:last-child { border-right: 0; }
.stepper button small { font: 500 10.5px/1.2 var(--f-mono); letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); }
.stepper button b { font-size: 13px; }
.stepper button[aria-current="step"] { background: var(--accent-soft); }
.stepper button[aria-current="step"] b { color: var(--accent); }
.stepper button.done small { color: var(--good); }

/* AI panel */
.ai-run { border: 1px dashed var(--accent); border-radius: var(--radius); padding: 12px 14px; display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; background: var(--accent-soft); font-size: 13.5px; }
.ai-run .pulse { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); animation: pulse 1.2s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: 0.25; } }
@media (prefers-reduced-motion: reduce) { .ai-run .pulse { animation: none; } }
.ai-meta { font: 500 11.5px/1.4 var(--f-mono); color: var(--muted); display: flex; flex-wrap: wrap; gap: 4px 12px; }

/* Fishbone */
.fishbone { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 10px; }
.fishbone div { border: 1px solid var(--line); border-radius: var(--radius); padding: 10px 12px; display: grid; gap: 4px; align-content: start; }
.fishbone b { font: 500 11px/1.2 var(--f-mono); text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); }
.fishbone ul { margin: 0; padding-left: 16px; font-size: 13px; }

/* Compare */
.compare { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 14px; }
.compare > div { border: 1px solid var(--line); border-radius: var(--radius); padding: 12px 14px; display: grid; gap: 6px; align-content: start; white-space: pre-wrap; }
.compare > div.after { border-color: var(--accent); }

/* Audit room */
.q-list { display: grid; gap: 4px; }
.q-list button { display: grid; grid-template-columns: 12px minmax(0, 1fr); gap: 8px; align-items: start; text-align: left; border: 1px solid transparent; background: none; border-radius: var(--radius); padding: 7px 8px; cursor: pointer; font-size: 13px; }
.q-list button:hover { background: var(--sunk); }
.q-list button[aria-current="true"] { border-color: var(--accent); background: var(--accent-soft); }
.q-list .dot { margin-top: 5px; }
.readiness { display: flex; flex-wrap: wrap; align-items: center; gap: 18px 28px; }
.readiness .score { font: 600 3.4rem/1 var(--f-display); font-variant-numeric: tabular-nums; }
.meter { height: 8px; border-radius: 4px; background: var(--sunk); overflow: hidden; min-width: 200px; flex: 1; }
.meter i { display: block; height: 100%; background: var(--accent); }

/* Modal + drawer */
.overlay { position: fixed; inset: 0; background: rgba(10, 20, 24, 0.45); display: grid; place-items: center; padding: 16px; z-index: 50; }
.modal { background: var(--surface); border-radius: 8px; border: 1px solid var(--line); width: min(560px, 100%); max-height: calc(100vh - 32px); overflow-y: auto; padding: 22px; display: grid; gap: 14px; }
.drawer { position: fixed; top: 0; right: 0; bottom: 0; width: min(440px, 100%); background: var(--surface); border-left: 1px solid var(--line); z-index: 40; padding: 20px; overflow-y: auto; display: grid; gap: 12px; align-content: start; box-shadow: -8px 0 24px rgba(0, 0, 0, 0.12); }
.clause-text { white-space: pre-wrap; font-size: 13.5px; }

/* Toast */
.toasts { position: fixed; bottom: calc(16px + env(safe-area-inset-bottom, 0px)); left: 50%; transform: translateX(-50%); display: grid; gap: 8px; z-index: 60; width: min(480px, calc(100% - 32px)); }
.toast { background: var(--ink); color: var(--paper); padding: 10px 14px; border-radius: var(--radius); font-size: 13.5px; }

.empty { border: 1px dashed var(--line); border-radius: var(--radius); padding: 28px; display: grid; gap: 10px; justify-items: start; background: var(--surface); }
.list-plain { margin: 0; padding-left: 18px; display: grid; gap: 4px; }
.kv { display: grid; grid-template-columns: max-content minmax(0, 1fr); gap: 4px 14px; font-size: 13.5px; }
.kv dt { color: var(--muted); } .kv dd { margin: 0; }
.boot { padding: 48px 28px; color: var(--muted); }