:root {
  --ink-900: #0f1720;
  --ink-800: #17222e;
  --ink-700: #202f3e;
  --ink-600: #34495c;
  --line: #2c3e50;
  --paper: #f6f4ef;
  --paper-dim: #eae7de;
  --amber: #d98e29;
  --amber-dim: #a9711f;
  --teal: #2f8f7f;
  --red: #c1502e;
  --text-hi: #f3f1ea;
  --text-dim: #a9b4bd;
  --dept-sm: #d98e29;
  --dept-bm: #2f8f7f;
  --dept-purch: #6d7fd9;
  --dept-wh: #c1502e;
  --dept-fin: #9a6bd9;
  --dept-log: #4fa3c9;
  --mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
  --sans: "IBM Plex Sans", "Inter", -apple-system, "Segoe UI", sans-serif;
  --serif: "Fraunces", "Georgia", serif;
  --radius: 3px;
}

@font-face { font-family: "IBM Plex Sans"; src: local("IBM Plex Sans"); }

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: var(--sans);
  background: var(--ink-900);
  color: var(--text-hi);
  overflow: hidden;
}

#app { display: flex; height: 100vh; width: 100vw; }

/* ===== SIDEBAR ===== */
#sidebar {
  width: 300px;
  min-width: 300px;
  background: var(--ink-800);
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  transition: margin-left .25s ease;
}
#sidebar.hidden { margin-left: -300px; }

.brand {
  padding: 18px 20px 14px;
  border-bottom: 1px solid var(--line);
}
.brand .eyebrow {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--amber);
}
.brand h1 {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 600;
  margin: 4px 0 0;
  color: var(--text-hi);
}

.search-box {
  margin: 14px 16px;
  position: relative;
}
.search-box input {
  width: 100%;
  background: var(--ink-900);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--text-hi);
  padding: 9px 12px 9px 32px;
  font-size: 13px;
  font-family: var(--sans);
}
.search-box input:focus { outline: 1px solid var(--amber); border-color: var(--amber); }
.search-box::before {
  content: "⌕";
  position: absolute;
  left: 11px; top: 50%; transform: translateY(-50%);
  color: var(--text-dim);
  font-size: 15px;
}
#search-results {
  margin: 0 16px 10px;
  max-height: 180px;
  overflow-y: auto;
}
.search-hit {
  padding: 7px 9px;
  font-size: 12px;
  border-radius: var(--radius);
  cursor: pointer;
  color: var(--text-dim);
  border-left: 2px solid transparent;
}
.search-hit:hover { background: var(--ink-700); color: var(--text-hi); border-left-color: var(--amber); }
.search-hit b { color: var(--amber); font-weight: 600; }

.nav-tree {
  flex: 1;
  overflow-y: auto;
  padding: 6px 10px 14px;
}
.nav-sop { margin-bottom: 2px; }
.nav-sop-head {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 10px;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 13px;
  color: var(--text-hi);
}
.nav-sop-head:hover { background: var(--ink-700); }
.nav-sop-head.active { background: var(--ink-700); color: var(--amber); }
.nav-sop-head .num {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text-dim);
  width: 20px;
}
.nav-sop-head .caret { margin-left: auto; font-size: 10px; color: var(--text-dim); transition: transform .15s; }
.nav-sop-head.open .caret { transform: rotate(90deg); }
.nav-sop-body { display: none; padding: 2px 0 6px 30px; }
.nav-sop-body.open { display: block; }
.nav-item {
  padding: 6px 8px;
  font-size: 12.5px;
  color: var(--text-dim);
  cursor: pointer;
  border-radius: var(--radius);
  border-left: 2px solid transparent;
}
.nav-item:hover { color: var(--text-hi); }
.nav-item.current { color: var(--amber); border-left-color: var(--amber); background: rgba(217,142,41,.08); }
.nav-item.sub { padding-left: 18px; font-size: 12px; }
.nav-badge {
  display: inline-block;
  font-family: var(--mono);
  font-size: 9px;
  padding: 1px 5px;
  border-radius: 2px;
  margin-right: 6px;
  background: var(--ink-600);
  color: var(--text-hi);
}

.sidebar-foot {
  border-top: 1px solid var(--line);
  padding: 10px 16px;
  font-size: 11px;
  color: var(--text-dim);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.foot-btn {
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 11px;
  font-family: var(--mono);
}
.foot-btn:hover { color: var(--amber); }

/* ===== MAIN ===== */
#main {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: var(--paper);
  color: var(--ink-900);
  min-width: 0;
}

#topbar {
  height: 52px;
  min-height: 52px;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 0 18px;
  background: var(--paper);
  border-bottom: 1px solid #d8d3c5;
}
#topbar .icon-btn {
  background: none; border: 1px solid #d8d3c5; border-radius: var(--radius);
  width: 30px; height: 30px; cursor: pointer; color: var(--ink-700); font-size: 14px;
}
#topbar .icon-btn:hover { background: var(--paper-dim); }
#breadcrumb { font-family: var(--mono); font-size: 11px; color: var(--ink-600); letter-spacing: .03em; }
#topbar .spacer { flex: 1; }
.topbar-btn {
  background: var(--ink-900); color: var(--text-hi); border: none;
  padding: 7px 14px; border-radius: var(--radius); font-size: 12px; cursor: pointer;
  font-family: var(--sans); font-weight: 500;
}
.topbar-btn:hover { background: var(--ink-700); }
.topbar-btn.ghost { background: none; color: var(--ink-700); border: 1px solid #d8d3c5; }
.topbar-btn.ghost:hover { background: var(--paper-dim); }

#progress-strip { height: 3px; background: #d8d3c5; position: relative; }
#progress-fill { height: 100%; background: var(--amber); transition: width .3s ease; width: 0%; }

#stage {
  flex: 1;
  overflow-y: auto;
  padding: 40px 60px 30px;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.slide {
  width: 100%;
  max-width: 980px;
}
.slide-eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--amber-dim);
  margin-bottom: 6px;
}
.slide-title {
  font-family: var(--serif);
  font-size: 30px;
  font-weight: 600;
  margin: 0 0 22px;
  color: var(--ink-900);
  line-height: 1.15;
}

/* Cover */
.cover-card {
  background: var(--ink-900);
  color: var(--text-hi);
  border-radius: 6px;
  padding: 52px 48px;
  position: relative;
  overflow: hidden;
}
.cover-card::before {
  content: "";
  position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: linear-gradient(90deg, var(--amber), var(--teal));
}
.cover-doc { font-family: var(--mono); font-size: 11px; color: var(--amber); letter-spacing: .1em; margin-bottom: 18px; }
.cover-title { font-family: var(--serif); font-size: 40px; line-height: 1.1; margin: 0 0 24px; max-width: 700px; }
.cover-meta { display: flex; gap: 34px; margin-top: 30px; flex-wrap: wrap; }
.cover-meta div { font-size: 12px; color: var(--text-dim); }
.cover-meta b { display: block; color: var(--text-hi); font-size: 14px; margin-top: 3px; font-family: var(--mono); }

/* Flowchart */
#flowchart-svg-wrap {
  background: #fff;
  border: 1px solid #d8d3c5;
  border-radius: 6px;
  padding: 10px;
  overflow: auto;
}
.fc-shape rect, .fc-shape polygon, .fc-shape ellipse {
  fill: #fff;
  stroke: var(--ink-600);
  stroke-width: 1.4;
}
.fc-shape.start ellipse, .fc-shape.end ellipse { fill: var(--ink-900); stroke: var(--ink-900); }
.fc-shape.start text, .fc-shape.end text { fill: #fff; }
.fc-shape.decision polygon { fill: #fdf3e3; stroke: var(--amber-dim); }
.fc-shape text {
  font-family: var(--sans);
  font-size: 9.5px;
  fill: var(--ink-900);
}
.fc-shape.active rect, .fc-shape.active polygon { stroke: var(--amber); stroke-width: 3; }
.fc-shape.active { filter: drop-shadow(0 0 6px rgba(217,142,41,.5)); }
.fc-shape.dim { opacity: .28; }
.fc-conn { stroke: var(--ink-600); stroke-width: 1.2; fill: none; marker-end: url(#arrow); }
.fc-conn.dim { opacity: .2; }

/* Content cards */
.content-card {
  background: #fff;
  border: 1px solid #d8d3c5;
  border-radius: 6px;
  padding: 28px 30px;
  margin-bottom: 16px;
}
.wi-header-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 4px;
}
.wi-header-grid .field { font-size: 11px; color: var(--ink-600); }
.wi-header-grid .field b { display: block; font-family: var(--mono); font-size: 13px; color: var(--ink-900); margin-top: 2px; }

.step-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px; height: 34px;
  background: var(--ink-900);
  color: var(--text-hi);
  font-family: var(--mono);
  font-weight: 600;
  border-radius: 50%;
  font-size: 14px;
  margin-right: 12px;
  flex-shrink: 0;
}
.step-row { display: flex; align-items: flex-start; }
.step-text { font-size: 16px; line-height: 1.6; padding-top: 4px; }
.risk-box {
  margin-top: 16px;
  padding: 12px 14px;
  background: #fdf0ea;
  border-left: 3px solid var(--red);
  border-radius: 3px;
  font-size: 13px;
  color: #7a3319;
}
.risk-box b { display: block; font-family: var(--mono); font-size: 10px; text-transform: uppercase; letter-spacing: .08em; margin-bottom: 4px; }

.dept-badge {
  display: inline-block;
  font-family: var(--mono);
  font-size: 10px;
  padding: 3px 9px;
  border-radius: 20px;
  color: #fff;
  letter-spacing: .03em;
}

.source-ref {
  font-family: var(--mono);
  font-size: 10px;
  color: #b0a996;
  margin-top: 12px;
}

/* narration bar */
#narration-bar {
  border-top: 1px solid #d8d3c5;
  background: #fff;
  padding: 14px 24px;
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
#narration-text {
  flex: 1;
  font-size: 13px;
  color: var(--ink-700);
  line-height: 1.5;
  font-style: italic;
}
#narration-controls { display: flex; gap: 8px; flex-shrink: 0; }
.narr-btn {
  background: var(--paper-dim); border: 1px solid #d8d3c5; border-radius: var(--radius);
  width: 32px; height: 32px; cursor: pointer; font-size: 13px; color: var(--ink-700);
}
.narr-btn:hover { background: #e0dccf; }
.narr-btn.playing { background: var(--amber); color: #fff; border-color: var(--amber); }

/* bottom controls */
#controls {
  height: 60px;
  min-height: 60px;
  background: var(--ink-900);
  display: flex;
  align-items: center;
  padding: 0 24px;
  gap: 16px;
}
.ctrl-btn {
  background: var(--ink-700); color: var(--text-hi); border: none;
  padding: 9px 18px; border-radius: var(--radius); cursor: pointer;
  font-size: 13px; font-family: var(--sans); font-weight: 500;
  display: flex; align-items: center; gap: 6px;
}
.ctrl-btn:hover { background: var(--ink-600); }
.ctrl-btn:disabled { opacity: .35; cursor: not-allowed; }
.ctrl-btn.primary { background: var(--amber); color: #201304; }
.ctrl-btn.primary:hover { background: #e6a248; }
#step-counter {
  font-family: var(--mono); font-size: 12px; color: var(--text-dim);
  flex: 1; text-align: center;
}
#step-counter b { color: var(--text-hi); }

/* modal */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(15,23,32,.72);
  display: none; align-items: center; justify-content: center; z-index: 100;
}
.modal-overlay.open { display: flex; }
.modal {
  background: var(--paper); color: var(--ink-900);
  width: 460px; max-width: 92vw; border-radius: 6px;
  padding: 26px 26px 20px; box-shadow: 0 20px 60px rgba(0,0,0,.4);
}
.modal.wide { width: 640px; }
.modal h3 { font-family: var(--serif); margin: 0 0 4px; font-size: 20px; }
.modal .sub { font-size: 12px; color: var(--ink-600); margin-bottom: 18px; }
.modal label { font-size: 11px; font-family: var(--mono); text-transform: uppercase; letter-spacing: .06em; color: var(--ink-600); display: block; margin: 12px 0 5px; }
.modal input[type=text], .modal input[type=password], .modal textarea {
  width: 100%; padding: 10px 12px; border: 1px solid #d8d3c5; border-radius: var(--radius);
  font-family: var(--sans); font-size: 13px; background: #fff; color: var(--ink-900);
}
.modal textarea { min-height: 120px; resize: vertical; line-height: 1.5; }
.modal .row { display: flex; gap: 10px; margin-top: 20px; }
.modal .err { color: var(--red); font-size: 12px; margin-top: 8px; display: none; }
.modal .err.show { display: block; }
.modal-close { position: absolute; top: 16px; right: 18px; background: none; border: none; font-size: 18px; cursor: pointer; color: var(--ink-600); }
.modal-wrap { position: relative; }

.chip { font-family: var(--mono); font-size: 10px; padding: 3px 8px; border-radius: 3px; background: var(--paper-dim); color: var(--ink-700); }
.chip.editor { background: var(--teal); color: #fff; }

/* toast */
#toast {
  position: fixed; bottom: 78px; left: 50%; transform: translateX(-50%) translateY(20px);
  background: var(--ink-900); color: var(--text-hi); padding: 10px 18px; border-radius: 5px;
  font-size: 12.5px; opacity: 0; transition: all .25s; pointer-events: none; z-index: 200;
  border-left: 3px solid var(--amber);
}
#toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* fullscreen mode */
body.fs #sidebar { margin-left: -300px; }
body.fs #topbar .icon-btn.sidebar-toggle,
body.fs #topbar .icon-btn.home-btn { display: none; }

/* scrollbars */
::-webkit-scrollbar { width: 9px; height: 9px; }
::-webkit-scrollbar-thumb { background: var(--line); border-radius: 5px; }
::-webkit-scrollbar-track { background: transparent; }

.coverage-note {
  font-size: 11px; color: var(--text-dim); font-family: var(--mono);
  padding: 10px 16px; border-top: 1px solid var(--line);
}

@media (max-width: 860px) {
  #sidebar { position: fixed; z-index: 50; height: 100vh; }
  #stage { padding: 24px 18px; }
  .slide-title { font-size: 22px; }
}