/* HAZOP Helper: control room at night */

:root {
  --bg: #08111C;
  --bg-2: #0C1826;
  --panel: rgba(17, 33, 51, 0.58);
  --panel-solid: #0F1E2E;
  --panel-hover: rgba(22, 42, 64, 0.72);
  --line: rgba(150, 192, 222, 0.14);
  --line-strong: rgba(150, 192, 222, 0.28);
  --text: #E7EFF6;
  --muted: #8EA3B6;
  --faint: #5D7286;

  --cyan: #3BE8FF;
  --cyan-deep: #0FB8D0;
  --cyan-glow: rgba(59, 232, 255, 0.35);
  --amber: #FFB020;
  --red: #FF5257;
  --green: #3DDC97;
  --sev-low: #7FA6C4;

  --display: "Big Shoulders Display", "Arial Narrow", Impact, sans-serif;
  --sans: "Archivo", "Helvetica Neue", Arial, sans-serif;

  --radius: 18px;
  --gutter: clamp(16px, 4vw, 56px);
  --max: 1320px;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection { background: var(--cyan); color: var(--bg); }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; border-radius: 6px; }
button { font: inherit; color: inherit; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ---------- Background ---------- */

.backdrop { position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }
.bg-grid {
  position: absolute; inset: -2px;
  background-image:
    linear-gradient(to right, rgba(120, 170, 210, 0.07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(120, 170, 210, 0.07) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, #000 20%, transparent 75%);
}
.bg-glow {
  position: absolute; left: 50%; top: -18vh;
  width: 120vw; height: 90vh; transform: translateX(-50%);
  background:
    radial-gradient(ellipse 45% 50% at 50% 50%, rgba(59, 232, 255, 0.14), transparent 70%),
    radial-gradient(ellipse 30% 35% at 70% 60%, rgba(30, 90, 160, 0.22), transparent 70%);
  filter: blur(10px);
}

main, .site-head, .site-foot { position: relative; z-index: 1; }

/* ---------- 3D scene ---------- */

.plant-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  display: block;
  width: 100vw;
  height: 100vh;
  cursor: grab;
}
.plant-canvas.is-dragging { cursor: grabbing; }
.has-3d .backdrop { display: none; }
.btn-3d { display: none; }
.has-3d .btn-3d { display: inline-flex; }

/* Let drags on empty parts of the page reach the 3D scene */
.has-3d main, .has-3d .site-head, .has-3d .hero { pointer-events: none; }
.has-3d .brand, .has-3d .command, .has-3d .examples, .has-3d .status, .has-3d .results { pointer-events: auto; }

.scene-caption {
  display: none;
  position: absolute;
  left: var(--gutter);
  bottom: 28px;
  max-width: 34ch;
  margin: 0;
  font-size: 13px;
  color: var(--muted);
  text-align: left;
}
.has-3d .scene-caption { display: block; }

/* ---------- Draft note ---------- */

.draft-note {
  position: fixed;
  z-index: 50;
  left: 0;
  right: 0;
  margin-inline: auto;
  bottom: max(16px, env(safe-area-inset-bottom));
  display: flex;
  align-items: center;
  gap: 10px;
  width: max-content;
  max-width: calc(100vw - 32px);
  padding: 9px 16px 9px 14px;
  font-size: 13.5px;
  font-weight: 500;
  color: #F4E2BF;
  background: rgba(26, 22, 12, 0.72);
  border: 1px solid rgba(255, 176, 32, 0.35);
  border-radius: 999px;
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}
.draft-dot {
  flex: none;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 0 0 rgba(255, 176, 32, 0.6);
  animation: beacon 2.8s ease-out infinite;
}
@keyframes beacon {
  0% { box-shadow: 0 0 0 0 rgba(255, 176, 32, 0.55); }
  70%, 100% { box-shadow: 0 0 0 10px rgba(255, 176, 32, 0); }
}

/* ---------- Header ---------- */

.site-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  max-width: var(--max);
  margin: 0 auto;
  padding: 22px var(--gutter);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  font-family: var(--display);
  font-weight: 800;
  font-size: 24px;
  letter-spacing: 0.01em;
}
.brand svg { color: var(--cyan); }
.head-meta { margin: 0; font-size: 14px; color: var(--muted); }

/* ---------- Hero ---------- */

.hero {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: calc(100svh - 80px);
  justify-content: center;
  max-width: var(--max);
  margin: 0 auto;
  padding: 24px var(--gutter) 120px;
  text-align: center;
}
/* With the 3D plant behind, the headline sits higher and a soft scrim keeps it readable */
.has-3d .hero { justify-content: flex-start; padding-top: clamp(4px, 2.5vh, 40px); }
.has-3d .hero-title { font-size: clamp(46px, 8.2vw, 124px); }
.has-3d .hero-sub { margin-top: 18px; }
.has-3d .command { margin-top: 28px; }
.has-3d .hero::before {
  content: "";
  position: absolute;
  inset: -90px -30vw 18% -30vw;
  z-index: -1;
  pointer-events: none;
  background: radial-gradient(ellipse 52% 62% at 50% 38%, rgba(7, 16, 26, 0.82), rgba(7, 16, 26, 0.45) 55%, transparent 78%);
}

.hero-title {
  margin: 0;
  font-family: var(--display);
  font-weight: 900;
  font-size: clamp(46px, 10.5vw, 168px);
  line-height: 0.88;
  letter-spacing: -0.005em;
  text-transform: none;
}
.hero-title .line { display: block; overflow: hidden; padding: 0.04em 0.06em 0.06em; }
.hero-title .w { display: inline-block; }
.dev-slot {
  display: inline-block;
  position: relative;
  overflow: hidden;
  vertical-align: bottom;
  padding: 0 0.04em;
}
.dev-word {
  display: inline-block;
  color: var(--cyan);
  white-space: nowrap;
}
.q { color: var(--text); }

.hero-sub {
  max-width: 56ch;
  margin: 28px auto 0;
  font-size: clamp(16px, 1.6vw, 19px);
  color: var(--muted);
}

/* Command bar */
.command {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  width: min(820px, 100%);
  margin-top: 44px;
  padding: 10px 10px 10px 22px;
  background: rgba(13, 26, 41, 0.72);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  backdrop-filter: blur(18px) saturate(150%);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.05);
  transition: border-color 0.35s, box-shadow 0.35s;
}
.command:focus-within {
  border-color: rgba(59, 232, 255, 0.6);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.45), 0 0 0 6px rgba(59, 232, 255, 0.08), 0 0 50px rgba(59, 232, 255, 0.16);
}
.command-icon { flex: none; color: var(--cyan); }
.command input {
  flex: 1;
  min-width: 0;
  padding: 14px 0;
  font: 500 clamp(17px, 1.7vw, 21px) var(--sans);
  color: var(--text);
  background: transparent;
  border: 0;
  outline: none;
}
.command input::placeholder { color: var(--faint); }
.command-go {
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 24px;
  font: 700 16px var(--sans);
  color: #021218;
  background: var(--cyan);
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  transition: transform 0.25s, box-shadow 0.25s, background-color 0.25s;
  box-shadow: 0 0 0 0 var(--cyan-glow);
}
.command-go:hover { transform: translateY(-1px); box-shadow: 0 8px 30px var(--cyan-glow); }
.command-go:active { transform: translateY(0); }
.command-go:disabled { cursor: progress; opacity: 0.6; transform: none; box-shadow: none; }
.command-go svg { transition: transform 0.25s; }
.command-go:hover svg { transform: translateX(3px); }

.status { min-height: 1.5em; margin: 14px 0 0; font-size: 15px; color: var(--muted); }
.status.is-error { color: #FF9A9D; }

.examples {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 10px;
  margin-top: 12px;
}
.examples-label { color: var(--faint); font-size: 14px; margin-right: 2px; }
.chip {
  padding: 8px 14px;
  font-size: 14px;
  color: var(--muted);
  background: rgba(17, 33, 51, 0.4);
  border: 1px solid var(--line);
  border-radius: 999px;
  cursor: pointer;
  transition: color 0.25s, border-color 0.25s, background-color 0.25s;
}
.chip:hover { color: var(--text); border-color: rgba(59, 232, 255, 0.45); background: rgba(59, 232, 255, 0.06); }

/* ---------- Glass ---------- */

.glass {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.28), inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

/* ---------- Results ---------- */

.results {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter) 160px;
  scroll-margin-top: 24px;
}

.loading {
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 32px clamp(20px, 4vw, 40px);
}
.loading-ring { position: relative; flex: none; width: 64px; height: 64px; }
.loading-ring span {
  position: absolute; inset: 0;
  border: 1.5px solid var(--cyan);
  border-radius: 50%;
  opacity: 0;
  animation: ripple 2.4s ease-out infinite;
}
.loading-ring span:nth-child(2) { animation-delay: 0.8s; }
.loading-ring span:nth-child(3) { animation-delay: 1.6s; }
@keyframes ripple {
  0% { transform: scale(0.3); opacity: 0.9; }
  100% { transform: scale(1); opacity: 0; }
}
.loading-title { margin: 0; font: 800 clamp(30px, 3.4vw, 44px) / 1 var(--display); }
.loading-text { margin: 8px 0 0; color: var(--muted); max-width: 60ch; }
.loading-text strong { color: var(--text); font-weight: 600; }
.loading-ticker { display: flex; align-items: baseline; gap: 16px; margin: 12px 0 0; }
.loading-ticker #loading-word { font: 800 22px var(--display); color: var(--cyan); min-width: 7ch; }
.loading-time { font-variant-numeric: tabular-nums; color: var(--faint); font-size: 14px; }

/* Worksheet header */
.ws-head { padding: 24px 0 28px; }
.ws-label { margin: 0; font-size: 14px; color: var(--muted); }
.ws-node {
  margin: 4px 0 0;
  font: 900 clamp(44px, 7vw, 104px) / 0.92 var(--display);
  letter-spacing: -0.005em;
  max-width: 18ch;
}
.ws-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}
.ws-stats li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  font-size: 14px;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 999px;
}
.ws-stats b { color: var(--text); font-weight: 600; font-variant-numeric: tabular-nums; }
.sev-dot { width: 8px; height: 8px; border-radius: 50%; background: currentColor; }

.ws-tools {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-top: 28px;
}
.segmented {
  display: inline-flex;
  padding: 4px;
  background: rgba(13, 26, 41, 0.7);
  border: 1px solid var(--line);
  border-radius: 999px;
}
.segmented button {
  padding: 8px 18px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--muted);
  background: transparent;
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  transition: color 0.25s, background-color 0.25s;
}
.segmented button[aria-pressed="true"] { color: #021218; background: var(--cyan); }
.segmented button:not([aria-pressed="true"]):hover { color: var(--text); }
.exports { display: flex; flex-wrap: wrap; gap: 10px; }
.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--text);
  background: rgba(17, 33, 51, 0.45);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  cursor: pointer;
  transition: border-color 0.25s, background-color 0.25s, color 0.25s;
}
.btn-ghost:hover:not(:disabled) { border-color: rgba(59, 232, 255, 0.6); background: rgba(59, 232, 255, 0.07); }
.btn-ghost:disabled { opacity: 0.5; cursor: progress; }
.export-status { min-height: 1.4em; margin: 10px 0 0; font-size: 14px; color: var(--muted); }
.export-status.is-error { color: #FF9A9D; }

/* Assumptions */
.assumptions { overflow: hidden; }
.assumptions-toggle {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: baseline;
  gap: 4px 16px;
  width: 100%;
  padding: 20px 24px;
  text-align: left;
  background: transparent;
  border: 0;
  cursor: pointer;
}
.assumptions-title { font: 800 24px var(--display); }
.assumptions-note { color: var(--muted); font-size: 14.5px; }
.chev { color: var(--muted); transition: transform 0.35s; align-self: center; }
[aria-expanded="false"] > .chev { transform: rotate(-90deg); }
.assumptions-body { overflow: hidden; }
.assumptions ul {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 10px 28px;
  margin: 0;
  padding: 0 24px 22px;
  list-style: none;
}
.assumptions li {
  position: relative;
  padding-left: 18px;
  color: #C6D4E1;
  font-size: 15px;
}
.assumptions li::before {
  content: "";
  position: absolute; left: 0; top: 0.62em;
  width: 7px; height: 1.5px;
  background: var(--cyan);
}

.view-hint { margin: 30px 0 0; color: var(--muted); font-size: 15px; }

/* Guide word groups */
.groups { display: flex; flex-direction: column; gap: 56px; margin-top: 26px; }
.group-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 14px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--line);
}
.group-word {
  margin: 0;
  font: 900 clamp(56px, 9vw, 124px) / 0.82 var(--display);
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(198, 222, 240, 0.55);
  letter-spacing: 0.005em;
}
.group-count { margin: 0 0 6px; color: var(--muted); font-size: 14.5px; white-space: nowrap; }
.group-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 520px), 1fr)); gap: 16px; align-items: start; }

/* Deviation cards */
.dev-card {
  --sev: var(--sev-low);
  position: relative;
  overflow: hidden;
  transition: border-color 0.35s, background-color 0.35s, transform 0.35s, box-shadow 0.35s;
}
.dev-card.sev-medium { --sev: var(--amber); }
.dev-card.sev-high { --sev: var(--red); }
.dev-card::before {
  content: "";
  position: absolute; left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--sev);
  box-shadow: 0 0 18px var(--sev);
}
.dev-card::after {
  content: "";
  position: absolute; inset: 0;
  border-radius: inherit;
  pointer-events: none;
  background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 0%), rgba(59, 232, 255, 0.08), transparent 45%);
  opacity: 0;
  transition: opacity 0.4s;
}
.dev-card:hover::after { opacity: 1; }
.dev-card:hover { border-color: var(--line-strong); background: var(--panel-hover); transform: translateY(-2px); }
.dev-card.is-open { border-color: var(--line-strong); }

.dev-head {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 6px 16px;
  width: 100%;
  padding: 20px 22px 18px 26px;
  text-align: left;
  background: transparent;
  border: 0;
  cursor: pointer;
}
.dev-param { grid-column: 1; font-size: 13.5px; font-weight: 600; color: var(--muted); }
.dev-sev {
  grid-column: 2; grid-row: 1;
  display: inline-flex; align-items: center; gap: 7px;
  justify-self: end;
  font-size: 13px; font-weight: 600;
  color: var(--sev);
}
.dev-title { grid-column: 1 / -1; font-size: clamp(19px, 1.6vw, 22px); font-weight: 600; line-height: 1.25; }
.dev-summary { grid-column: 1; font-size: 14px; color: var(--faint); }
.dev-head .chev { grid-column: 2; grid-row: 3; justify-self: end; }
.dev-head[aria-expanded="false"] .chev { transform: rotate(-90deg); }

.dev-body { overflow: hidden; }
.dev-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px 28px;
  padding: 4px 22px 6px 26px;
}
.dev-grid h4 { margin: 0 0 8px; font-size: 13.5px; font-weight: 600; color: var(--muted); }
.dev-grid ul { margin: 0; padding: 0; list-style: none; }
.dev-grid li {
  position: relative;
  padding-left: 16px;
  font-size: 14.5px;
  line-height: 1.45;
  color: #CCD9E5;
}
.dev-grid li + li { margin-top: 6px; }
.dev-grid li::before {
  content: "";
  position: absolute; left: 0; top: 0.6em;
  width: 6px; height: 6px;
  border-radius: 50%;
  border: 1.5px solid var(--faint);
}
.dev-grid .is-safeguards li::before { border-color: var(--green); }
.dev-grid .is-actions li::before { border-radius: 1px; border-color: var(--cyan); }
.dev-actions { display: flex; gap: 10px; padding: 16px 22px 22px 26px; }
.btn-play {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--cyan);
  background: rgba(59, 232, 255, 0.06);
  border: 1px solid rgba(59, 232, 255, 0.45);
  border-radius: 999px;
  cursor: pointer;
  transition: background-color 0.25s, box-shadow 0.25s;
}
.btn-play:hover { background: rgba(59, 232, 255, 0.14); box-shadow: 0 0 26px rgba(59, 232, 255, 0.2); }

/* Table view */
.table-wrap { margin-top: 26px; overflow-x: auto; }
table { width: 100%; min-width: 1100px; border-collapse: collapse; font-size: 14.5px; }
th, td { padding: 14px 16px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); }
th + th, td + td { border-left: 1px solid var(--line); }
thead th { font-size: 13.5px; font-weight: 600; color: var(--muted); background: rgba(8, 17, 28, 0.6); }
tbody tr { transition: background-color 0.25s; }
tbody tr.playable { cursor: pointer; }
tbody tr.playable:hover { background: rgba(59, 232, 255, 0.05); }
td.guide { font: 800 20px var(--display); white-space: nowrap; position: relative; }
td.guide::before { content: ""; position: absolute; left: 0; top: 10px; bottom: 10px; width: 3px; border-radius: 2px; background: var(--sev, var(--sev-low)); }
tr.sev-medium { --sev: var(--amber); }
tr.sev-high { --sev: var(--red); }
td.deviation { font-weight: 600; }
td ul { margin: 0; padding-left: 1.05em; color: #CCD9E5; }
td li + li { margin-top: 4px; }
.play-cue { display: flex; align-items: center; gap: 6px; margin-top: 8px; font-size: 13px; font-weight: 600; color: var(--cyan); }

/* Footer */
.site-foot {
  max-width: var(--max);
  margin: 0 auto;
  padding: 40px var(--gutter) 110px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}
.site-foot p { margin: 0; }
.foot-quiet { margin-top: 6px !important; color: var(--faint); }
.foot-quiet a { color: var(--muted); }
.foot-quiet a:hover, .foot-quiet a:focus-visible { color: var(--cyan); }

/* ---------- Playback panel (dark) ---------- */

dialog.pb {
  width: min(1180px, calc(100vw - 24px));
  max-height: calc(100vh - 24px);
  padding: 0;
  color: var(--text);
  background: rgba(10, 21, 34, 0.94);
  border: 1px solid var(--line-strong);
  border-radius: 22px;
  box-shadow: 0 40px 120px rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}
dialog.pb::backdrop { background: rgba(3, 8, 14, 0.72); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); }
.pb-head {
  position: sticky; top: 0; z-index: 2;
  display: flex; align-items: flex-start; justify-content: space-between; gap: 16px;
  padding: 22px 26px 12px;
  background: linear-gradient(rgba(10, 21, 34, 0.98), rgba(10, 21, 34, 0.9));
}
.pb-meta { margin: 0; font-size: 14px; font-weight: 600; color: var(--muted); }
.pb-head h2 { margin: 4px 0 0; font: 800 clamp(30px, 3.6vw, 46px) / 0.95 var(--display); }
.pb-close {
  flex: none; padding: 9px 18px; font-size: 14.5px; font-weight: 600;
  color: var(--text); background: transparent;
  border: 1px solid var(--line-strong); border-radius: 999px; cursor: pointer;
}
.pb-close:hover { border-color: var(--cyan); }
.pb-notice {
  display: inline-flex; align-items: center; gap: 8px;
  margin: 12px 0 0; padding: 6px 14px;
  font-size: 13.5px; font-weight: 600; color: var(--cyan);
  background: rgba(59, 232, 255, 0.07);
  border: 1px solid rgba(59, 232, 255, 0.3);
  border-radius: 999px;
}
.pb-stage { margin: 16px 26px 0; border: 1px solid var(--line); border-radius: 14px; overflow: hidden; background: #0A1520; }
.pb-svg { display: block; width: 100%; height: auto; max-height: 52vh; }
.pb-tag { font: 700 13px var(--sans); fill: var(--text); text-anchor: middle; paint-order: stroke; stroke: #0A1520; stroke-width: 4px; }
.pb-label { font: 500 12px var(--sans); fill: var(--muted); text-anchor: middle; paint-order: stroke; stroke: #0A1520; stroke-width: 4px; }
.pb-inst-text { font: 600 9.5px var(--sans); fill: var(--text); text-anchor: middle; }
.pb-badge-text { font: 700 11px var(--sans); fill: #08111C; text-anchor: middle; }
.pb-sg-marker-text { font: 700 9.5px var(--sans); fill: #03140C; text-anchor: middle; }
.sym, .sym-line { stroke-width: 2; }
.pb-empty { padding: 48px 20px; color: var(--muted); }

.pb-below {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.85fr);
  grid-template-areas: "rail sg" "caption sg" "controls sg";
  gap: 14px 32px;
  padding: 18px 26px 26px;
}
.pb-rail { grid-area: rail; display: flex; align-items: center; margin: 0; padding: 0; list-style: none; }
.pb-rail li { display: flex; align-items: center; }
.pb-rail li + li::before { content: ""; width: 34px; height: 1.5px; background: var(--line-strong); }
.pb-node {
  width: 34px; height: 34px;
  font: 800 16px var(--display);
  color: var(--muted); background: transparent;
  border: 1.5px solid var(--line-strong); border-radius: 50%;
  cursor: pointer; transition: background-color 0.4s, border-color 0.4s, color 0.4s, box-shadow 0.4s;
}
.pb-node.is-done { border-color: var(--text); color: var(--text); }
.pb-node.is-current { color: #021218; background: var(--cyan); border-color: var(--cyan); box-shadow: 0 0 18px var(--cyan-glow); }
.pb-node-cause.is-current, .pb-node-effect.is-current { background: var(--amber); border-color: var(--amber); box-shadow: 0 0 18px rgba(255, 176, 32, 0.4); }
.pb-node-consequence.is-current { background: var(--red); border-color: var(--red); color: #fff; box-shadow: 0 0 18px rgba(255, 82, 87, 0.45); }
.pb-caption { grid-area: caption; min-height: 96px; }
.pb-caption-head { display: flex; align-items: center; gap: 10px; margin: 0; }
.pb-caption-step { font-size: 14px; font-weight: 600; color: var(--muted); }
.pb-role { padding: 2px 10px; font-size: 12.5px; font-weight: 700; border-radius: 999px; background: rgba(59, 232, 255, 0.12); color: var(--cyan); }
.pb-role-cause, .pb-role-effect { background: rgba(255, 176, 32, 0.14); color: var(--amber); }
.pb-role-consequence { background: rgba(255, 82, 87, 0.15); color: #FF8A8D; }
.pb-caption-text { margin: 8px 0 0; font-size: clamp(19px, 1.8vw, 24px); font-weight: 600; line-height: 1.3; max-width: 44ch; }
.pb-caption-sg { margin: 8px 0 0; min-height: 1.4em; font-size: 14.5px; font-weight: 600; color: var(--green); }
.pb-controls { grid-area: controls; display: flex; flex-wrap: wrap; gap: 8px; }
.pb-btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 16px; font-size: 14px; font-weight: 600;
  color: var(--text); background: rgba(17, 33, 51, 0.5);
  border: 1px solid var(--line-strong); border-radius: 999px; cursor: pointer;
  transition: border-color 0.25s, background-color 0.25s;
}
.pb-btn:hover:not(:disabled) { border-color: var(--cyan); }
.pb-btn-play:not(:disabled) { color: #021218; background: var(--cyan); border-color: var(--cyan); }
.pb-btn:disabled { opacity: 0.38; cursor: default; }
.pb-sg { grid-area: sg; }
.pb-sg h3 { margin: 0 0 10px; font: 800 22px var(--display); }
.pb-sg-list { margin: 0; padding: 0; list-style: none; }
.pb-sg-item { display: flex; gap: 12px; padding: 9px 0; border-top: 1px solid var(--line); font-size: 14px; color: #C6D4E1; }
.pb-sg-chip {
  flex: none; width: 32px; height: 22px; display: grid; place-items: center;
  font-size: 12px; font-weight: 700; color: var(--green);
  border: 1.5px solid var(--green); border-radius: 11px;
  transition: background-color 0.4s, color 0.4s, box-shadow 0.4s;
}
.pb-sg-item.is-active .pb-sg-chip { color: #03140C; background: var(--green); box-shadow: 0 0 14px rgba(61, 220, 151, 0.45); }
.pb-sg-when { color: var(--faint); }

/* ---------- Small screens ---------- */

@media (max-width: 760px) {
  .head-meta { display: none; }
  .scene-caption { left: 0; right: 0; bottom: 84px; margin: 0 auto; text-align: center; }
  .hero { padding-bottom: 96px; min-height: calc(100svh - 70px); }
  .command { flex-wrap: wrap; border-radius: 22px; padding: 8px 8px 8px 18px; }
  .command input { flex-basis: calc(100% - 40px); }
  .command-go { width: 100%; justify-content: center; }
  .loading { flex-direction: column; align-items: flex-start; gap: 18px; }
  .dev-grid { grid-template-columns: 1fr; }
  .assumptions-toggle { grid-template-columns: 1fr auto; }
  .assumptions-note { grid-column: 1; grid-row: 2; }
  .assumptions-toggle .chev { grid-column: 2; grid-row: 1; }
  .ws-tools { flex-direction: column; align-items: flex-start; }
  .draft-note { font-size: 12.5px; border-radius: 14px; }
  .pb-below { grid-template-columns: 1fr; grid-template-areas: "rail" "caption" "controls" "sg"; padding: 16px; }
  .pb-head { padding: 16px 16px 10px; }
  .pb-stage { margin-left: 16px; margin-right: 16px; }
  .pb-rail li + li::before { width: 14px; }
}

@media (prefers-reduced-motion: reduce) {
  .draft-dot, .loading-ring span { animation: none; }
  .dev-card, .chip, .btn-ghost, .command-go { transition: none; }
}

/* ---------- 3D deviation playback ---------- */

.is-p3d body { overflow: hidden; }
.is-p3d main, .is-p3d .site-head, .is-p3d .site-foot {
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.5s, visibility 0s 0.5s;
}
main, .site-head, .site-foot { transition: opacity 0.6s; }

.p3d { position: fixed; inset: 0; z-index: 30; pointer-events: none; }
.p3d > * { pointer-events: auto; }

.p3d-top {
  position: absolute;
  top: 0; left: 0; right: 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 22px var(--gutter) 0;
  pointer-events: none;
}
.p3d-top > * { pointer-events: auto; }
.p3d-meta { margin: 0; font-size: 14px; font-weight: 600; color: var(--muted); }
.p3d-title {
  margin: 4px 0 0;
  max-width: 22ch;
  font: 900 clamp(32px, 4.4vw, 64px) / 0.92 var(--display);
  text-shadow: 0 4px 30px rgba(0, 0, 0, 0.6);
}
.p3d-notice {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 14px 0 0;
  padding: 6px 14px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--cyan);
  background: rgba(8, 17, 28, 0.7);
  border: 1px solid rgba(59, 232, 255, 0.35);
  border-radius: 999px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.p3d-link {
  flex: none;
  padding: 10px 18px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--text);
  background: rgba(8, 17, 28, 0.6);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  cursor: pointer;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.p3d-link:hover { border-color: var(--cyan); }

.p3d-sg {
  position: absolute;
  top: 168px;
  right: var(--gutter);
  width: min(340px, 30vw);
  max-height: calc(100vh - 168px - 300px);
  overflow-y: auto;
  padding: 16px 18px;
}
.p3d-sg h3 { margin: 0 0 8px; font: 800 20px var(--display); }
.p3d-sg-list { margin: 0; padding: 0; list-style: none; }
.p3d-sg-item { display: flex; gap: 10px; padding: 8px 0; border-top: 1px solid var(--line); font-size: 13.5px; color: #C6D4E1; transition: color 0.4s; }
.p3d-chip {
  flex: none; width: 32px; height: 22px; display: grid; place-items: center;
  font-size: 12px; font-weight: 700; color: var(--green);
  border: 1.5px solid var(--green); border-radius: 11px;
  transition: background-color 0.4s, color 0.4s, box-shadow 0.4s;
}
.p3d-sg-item.is-active { color: var(--text); }
.p3d-sg-item.is-active .p3d-chip { color: #03140C; background: var(--green); box-shadow: 0 0 16px rgba(61, 220, 151, 0.5); }
.p3d-sg-when { color: var(--faint); }

.p3d-bottom {
  position: absolute;
  left: 0;
  right: 0;
  margin-inline: auto;   /* centred without a transform, so the entrance animation can move it */
  bottom: calc(max(16px, env(safe-area-inset-bottom)) + 52px);
  width: min(880px, calc(100vw - 32px));
  max-height: calc(100vh - 150px);
  overflow-y: auto;
  padding: 18px 22px 18px;
}
.p3d-rail { display: flex; align-items: center; margin: 0 0 12px; padding: 0; list-style: none; }
.p3d-rail li { display: flex; align-items: center; }
.p3d-rail li + li::before { content: ""; width: 30px; height: 1.5px; background: var(--line-strong); }
.p3d-node {
  width: 32px; height: 32px;
  font: 800 15px var(--display);
  color: var(--muted); background: rgba(8, 17, 28, 0.5);
  border: 1.5px solid var(--line-strong); border-radius: 50%;
  cursor: pointer; transition: background-color 0.4s, border-color 0.4s, color 0.4s, box-shadow 0.4s;
}
.p3d-node.is-done { border-color: var(--text); color: var(--text); }
.p3d-node.is-current { color: #021218; background: var(--cyan); border-color: var(--cyan); box-shadow: 0 0 18px var(--cyan-glow); }
.p3d-node-cause.is-current, .p3d-node-effect.is-current { background: var(--amber); border-color: var(--amber); box-shadow: 0 0 18px rgba(255, 176, 32, 0.45); }
.p3d-node-consequence.is-current { background: var(--red); border-color: var(--red); color: #fff; box-shadow: 0 0 18px rgba(255, 82, 87, 0.5); }

.p3d-cap-head { display: flex; align-items: center; gap: 10px; margin: 0; }
.p3d-cap-step { font-size: 14px; font-weight: 600; color: var(--muted); }
.p3d-role { padding: 2px 10px; font-size: 12.5px; font-weight: 700; border-radius: 999px; background: rgba(59, 232, 255, 0.12); color: var(--cyan); }
.p3d-role-cause, .p3d-role-effect { background: rgba(255, 176, 32, 0.14); color: var(--amber); }
.p3d-role-consequence { background: rgba(255, 82, 87, 0.16); color: #FF8A8D; }
.p3d-cap-text { margin: 8px 0 0; min-height: 2.6em; font-size: clamp(19px, 2vw, 25px); font-weight: 600; line-height: 1.3; }
.p3d-cap-sg { margin: 6px 0 0; min-height: 1.4em; font-size: 14px; font-weight: 600; color: var(--green); }
.p3d-controls { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.p3d-btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 15px; font-size: 14px; font-weight: 600;
  color: var(--text); background: rgba(17, 33, 51, 0.55);
  border: 1px solid var(--line-strong); border-radius: 999px; cursor: pointer;
  transition: border-color 0.25s, background-color 0.25s;
}
.p3d-btn:hover:not(:disabled) { border-color: var(--cyan); }
.p3d-btn-play:not(:disabled) { color: #021218; background: var(--cyan); border-color: var(--cyan); }
.p3d-btn-plant { margin-left: auto; }
.p3d-btn:disabled { opacity: 0.38; cursor: default; }

/* Play button on each deviation card */
.dev-card .dev-head { padding-right: 112px; }
.dev-quickplay {
  position: absolute;
  right: 18px;
  bottom: 16px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 13px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--cyan);
  background: rgba(59, 232, 255, 0.07);
  border: 1px solid rgba(59, 232, 255, 0.45);
  border-radius: 999px;
  cursor: pointer;
  transition: background-color 0.25s, box-shadow 0.25s;
}
.dev-quickplay:hover { background: rgba(59, 232, 255, 0.16); box-shadow: 0 0 22px rgba(59, 232, 255, 0.25); }
.dev-card.is-open .dev-quickplay { display: none; }

@media (max-width: 760px) {
  .p3d-top { flex-direction: column-reverse; align-items: flex-start; gap: 10px; padding-top: 12px; }
  .p3d-title { font-size: 28px; }
  .p3d-notice { margin-top: 10px; font-size: 12.5px; }
  .p3d-link { padding: 7px 12px; font-size: 13px; }
  .p3d-cap-text { font-size: 18px; min-height: 0; }
  .p3d-sg { display: none; }
  .p3d-bottom { bottom: calc(max(12px, env(safe-area-inset-bottom)) + 70px); padding: 14px; }
  .p3d-rail li + li::before { width: 14px; }
  .p3d-btn { padding: 8px 11px; font-size: 13px; }
  .p3d-btn span { display: none; }
  .p3d-btn-plant span, .p3d-btn-play span { display: inline; }
  .p3d-btn-plant { margin-left: 0; }
}

/* ---------- Full study: progress, nodes, risk, not credible ---------- */

.progress { margin-top: 18px; padding: 18px 22px 16px; }
.progress-top { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; }
.progress-title { margin: 0; font: 800 22px var(--display); }
.progress-title span { margin-left: 8px; font: 600 14px var(--sans); color: var(--muted); }
.progress-time { margin: 0; font-variant-numeric: tabular-nums; color: var(--faint); font-size: 14px; }
.progress-track { height: 6px; margin-top: 12px; background: rgba(150, 192, 222, 0.12); border-radius: 999px; overflow: hidden; }
.progress-bar {
  width: 0; height: 100%;
  background: linear-gradient(90deg, var(--cyan-deep), var(--cyan));
  box-shadow: 0 0 16px var(--cyan-glow);
  border-radius: 999px;
  transition: width 0.6s ease;
}
.progress-label { margin: 10px 0 0; font-size: 14px; color: var(--muted); }

.notices { display: grid; gap: 10px; margin-top: 16px; }
.notice { margin: 0; padding: 12px 16px; border-radius: 12px; font-size: 14.5px; line-height: 1.45; }
.notice-error { color: #FFD3D4; background: rgba(255, 82, 87, 0.1); border: 1px solid rgba(255, 82, 87, 0.4); }
.notice-warn { color: #FFE6B8; background: rgba(255, 176, 32, 0.1); border: 1px solid rgba(255, 176, 32, 0.4); }

.node-index-wrap { margin-top: 22px; }
.node-index { display: flex; flex-wrap: wrap; gap: 8px; margin: 0; padding: 0; list-style: none; }
.node-index a {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 7px 14px 7px 8px;
  font-size: 14px; font-weight: 600; color: var(--text); text-decoration: none;
  background: rgba(17, 33, 51, 0.5);
  border: 1px solid var(--line); border-radius: 999px;
  transition: border-color 0.25s, background-color 0.25s;
}
.node-index a:hover { border-color: rgba(59, 232, 255, 0.5); background: rgba(59, 232, 255, 0.06); }
.node-index-no {
  display: grid; place-items: center; width: 24px; height: 24px;
  font: 800 14px var(--display); color: #021218; background: var(--cyan); border-radius: 50%;
}

.node-section { scroll-margin-top: 24px; }
.node-section + .node-section { margin-top: 64px; }
.node-head {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: end;
  gap: 4px 22px;
  padding-bottom: 16px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--line);
}
.node-no {
  font: 900 clamp(64px, 9vw, 120px) / 0.8 var(--display);
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(198, 222, 240, 0.55);
}
.node-name { margin: 0; font: 800 clamp(28px, 3.2vw, 44px) / 1 var(--display); }
.node-intent { margin: 8px 0 0; max-width: 70ch; color: var(--muted); font-size: 15px; }
.node-count { margin: 0 0 4px; color: var(--muted); font-size: 14px; white-space: nowrap; }
.param-group + .param-group { margin-top: 28px; }
.param-name {
  display: flex; align-items: center; gap: 10px;
  margin: 0 0 12px;
  font: 800 22px var(--display);
  color: #C6D4E1;
}
.param-count {
  padding: 1px 9px; font: 600 12.5px var(--sans); color: var(--muted);
  border: 1px solid var(--line); border-radius: 999px;
}

/* Hundreds of cards: a solid tint instead of live blur keeps scrolling smooth */
.dev-card.glass { backdrop-filter: none; -webkit-backdrop-filter: none; background: rgba(15, 30, 46, 0.86); }
.dev-card.risk-medium { --sev: var(--amber); }
.dev-card.risk-high { --sev: var(--red); }
.dev-card.risk-vhigh { --sev: #FF2D55; }
.dev-card.risk-vhigh::before { width: 4px; box-shadow: 0 0 26px #FF2D55; }
.dev-no {
  display: inline-block; margin-right: 8px; padding: 1px 7px;
  font-size: 12.5px; font-weight: 700; color: var(--text);
  background: rgba(150, 192, 222, 0.12); border-radius: 6px;
  font-variant-numeric: tabular-nums;
}
.dev-grid .dev-risk { grid-column: 1 / -1; }
.dev-grid .dev-risk p, .dev-none { margin: 0; font-size: 14.5px; color: #CCD9E5; }
.dev-none { color: var(--faint); }

/* Table */
tr.risk-medium { --sev: var(--amber); }
tr.risk-high { --sev: var(--red); }
tr.risk-vhigh { --sev: #FF2D55; }
td.num { font-weight: 700; white-space: nowrap; font-variant-numeric: tabular-nums; }
td.guide::before { display: none; }
td.num { position: relative; }
td.num::before { content: ""; position: absolute; left: 0; top: 10px; bottom: 10px; width: 3px; border-radius: 2px; background: var(--sev, var(--sev-low)); }
td.risk { font-weight: 700; color: var(--sev, var(--sev-low)); white-space: nowrap; }
.td-label { margin: 0 0 4px; font-size: 12px; font-weight: 700; color: var(--muted); }
.td-label + ul + .td-label { margin-top: 8px; }
tr.node-band td {
  padding: 12px 16px;
  font: 800 18px var(--display);
  color: var(--text);
  background: rgba(59, 232, 255, 0.06);
}

/* Considered, not credible */
.nc { margin-top: 40px; overflow: hidden; }
.nc-toggle {
  display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 4px 16px;
  width: 100%; padding: 20px 24px; text-align: left; background: transparent; border: 0; cursor: pointer;
}
.nc-title { font: 800 24px var(--display); }
.nc-count {
  margin-left: 8px; padding: 1px 10px; font: 600 14px var(--sans); color: var(--muted);
  border: 1px solid var(--line); border-radius: 999px; vertical-align: middle;
}
.nc-note { grid-column: 1; color: var(--muted); font-size: 14.5px; }
.nc-toggle .chev { grid-column: 2; grid-row: 1 / span 2; }
.nc-body { overflow: hidden; padding: 0 24px 22px; }
.nc-node + .nc-node { margin-top: 22px; }
.nc-node h4 { margin: 0 0 6px; font: 800 20px var(--display); }
.nc-sub { margin: 10px 0 6px; font-size: 13px; font-weight: 600; color: var(--muted); }
.nc-node ul { margin: 0; padding: 0; list-style: none; columns: 2 420px; column-gap: 32px; }
.nc-node li { break-inside: avoid; padding: 3px 0; font-size: 14px; color: #B8C7D5; }
.nc-node li b { color: var(--text); font-weight: 600; }

@media (max-width: 760px) {
  .node-head { grid-template-columns: auto 1fr; }
  .node-count { grid-column: 1 / -1; }
  .progress-title { font-size: 19px; }
}

/* ---------- Readable worksheet: solid background, tabs, filters, compact rows ---------- */

/* The 3D scene fades away once you scroll into the results */
.plant-canvas { transition: opacity 0.7s ease; }
.reading-results .plant-canvas { opacity: 0; }
.results { position: relative; }
.results::before {
  content: "";
  position: absolute;
  inset: -40px calc(50% - 50vw) 0;
  z-index: -1;
  background: linear-gradient(to bottom, rgba(8, 17, 28, 0) 0, var(--bg) 120px, var(--bg) 100%);
  pointer-events: none;
}

.ws-toolbar {
  position: sticky;
  top: 0;
  z-index: 5;
  margin: 26px calc(-1 * var(--gutter)) 0;
  padding: 14px var(--gutter) 12px;
  background: rgba(8, 17, 28, 0.96);
  border-bottom: 1px solid var(--line);
}
.node-tabs { display: flex; gap: 8px; overflow-x: auto; padding-bottom: 4px; scrollbar-width: thin; }
.node-tab {
  flex: none;
  display: inline-flex; align-items: center; gap: 10px;
  max-width: 300px;
  padding: 8px 12px 8px 8px;
  font-size: 14px; font-weight: 600; color: var(--muted);
  background: rgba(17, 33, 51, 0.6);
  border: 1px solid var(--line); border-radius: 12px;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s, background-color 0.2s;
}
.node-tab:hover { color: var(--text); border-color: var(--line-strong); }
.node-tab[aria-selected="true"] { color: var(--text); background: rgba(59, 232, 255, 0.1); border-color: rgba(59, 232, 255, 0.55); }
.node-tab-no {
  flex: none; display: grid; place-items: center; min-width: 26px; height: 26px; padding: 0 6px;
  font: 800 15px var(--display); color: var(--text);
  background: rgba(150, 192, 222, 0.14); border-radius: 8px;
}
.node-tab[aria-selected="true"] .node-tab-no { color: #021218; background: var(--cyan); }
.node-tab-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.node-tab-count { flex: none; font-size: 12.5px; color: var(--faint); font-variant-numeric: tabular-nums; }
/* on small screens the node buttons wrap onto more lines instead of running off the right edge */
@media (max-width: 700px) {
  .ws-toolbar { position: static; }   /* stacked node buttons would cover half a phone screen if pinned */
  .node-tabs { flex-wrap: wrap; overflow-x: visible; }
  .node-tab { flex: 1 1 100%; max-width: none; }
  .node-tab-name { flex: 1; }
}

.ws-filters { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 10px; margin-top: 10px; }
.risk-filter { display: flex; flex-wrap: wrap; gap: 6px; }
.risk-chip {
  padding: 6px 12px;
  font-size: 13.5px; font-weight: 600; color: var(--muted);
  background: transparent; border: 1px solid var(--line); border-radius: 999px; cursor: pointer;
}
.risk-chip b { color: var(--text); font-weight: 700; }
.risk-chip.risk-vhigh { --chip: #FF2D55; }
.risk-chip.risk-high { --chip: var(--red); }
.risk-chip.risk-medium { --chip: var(--amber); }
.risk-chip.risk-low { --chip: var(--sev-low); }
.risk-chip[aria-pressed="true"] { color: var(--text); border-color: var(--chip, var(--cyan)); background: rgba(150, 192, 222, 0.08); box-shadow: inset 0 0 0 1px var(--chip, var(--cyan)); }
.row-search {
  flex: 1 1 220px; min-width: 0;
  padding: 8px 14px;
  font: 500 14.5px var(--sans); color: var(--text);
  background: rgba(17, 33, 51, 0.7);
  border: 1px solid var(--line); border-radius: 999px; outline: none;
}
.row-search:focus { border-color: rgba(59, 232, 255, 0.6); }
.btn-small { padding: 7px 14px; font-size: 13.5px; }

/* The panel view is now a worksheet: node header, parameter groups, one-line rows */
#panels-view { margin-top: 26px; }
.node-section + .node-section { margin-top: 56px; }
.node-head { align-items: center; margin-bottom: 8px; }
.node-no { font-size: clamp(56px, 7vw, 92px); }
.node-intent { font-size: 15px; }
.ws-empty { margin: 18px 0; color: var(--muted); }
.param-group { margin-top: 26px; }
.param-group + .param-group { margin-top: 30px; }
.param-name { font-size: 20px; color: var(--cyan); margin-bottom: 8px; }

.ws-rows { border: 1px solid var(--line); border-radius: 14px; overflow: hidden; background: var(--panel-solid); }
.ws-row { --sev: var(--sev-low); position: relative; border-top: 1px solid var(--line); }
.ws-row:first-child { border-top: 0; }
.ws-row.risk-medium { --sev: var(--amber); }
.ws-row.risk-high { --sev: var(--red); }
.ws-row.risk-vhigh { --sev: #FF2D55; }
.ws-row::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: var(--sev); }
.row-head {
  display: grid;
  grid-template-columns: 56px 92px minmax(0, 1fr) minmax(150px, 300px) 112px 20px;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 12px 16px 12px 18px;
  text-align: left;
  background: transparent;
  border: 0;
  cursor: pointer;
  transition: background-color 0.2s;
}
.row-head:hover { background: rgba(59, 232, 255, 0.04); }
.ws-row.is-open .row-head { background: rgba(59, 232, 255, 0.06); }
.row-no { font-weight: 700; font-variant-numeric: tabular-nums; color: var(--text); }
.row-gw { font-size: 13.5px; font-weight: 600; color: var(--muted); }
.row-dev { font-size: 15.5px; font-weight: 600; color: var(--text); line-height: 1.3; }
.row-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 8px; min-width: 0; }
.row-type { font-size: 13px; color: var(--faint); }
.row-risk { justify-self: start; padding: 3px 10px; font-size: 13px; font-weight: 700; color: var(--sev); border: 1px solid var(--sev); border-radius: 999px; white-space: nowrap; }
.row-head .chev { transition: transform 0.3s; }
.row-head[aria-expanded="false"] .chev { transform: rotate(-90deg); }
.row-body { overflow: hidden; border-top: 1px solid var(--line); background: rgba(8, 17, 28, 0.55); }
.row-body .dev-grid { padding: 18px 22px 6px 74px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.row-body .dev-actions { padding: 12px 22px 18px 74px; }

@media (max-width: 900px) {
  .row-head { grid-template-columns: 48px minmax(0, 1fr) auto 18px; gap: 4px 10px; }
  .row-gw { grid-column: 2; grid-row: 1; }
  .row-dev { grid-column: 1 / -1; grid-row: 2; }
  .row-meta { grid-column: 1 / -1; grid-row: 3; }
  .row-risk { grid-column: 3; grid-row: 1; }
  .row-head .chev { grid-column: 4; grid-row: 1; }
  .row-body .dev-grid, .row-body .dev-actions { padding-left: 18px; }
}

.saved { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 10px; margin-top: 14px; }
.saved-list { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; }
.saved-chip { color: var(--text); border-color: rgba(61, 220, 151, 0.35); }
.saved-chip:hover { border-color: var(--green); background: rgba(61, 220, 151, 0.08); }
.saved-meta { color: var(--faint); font-size: 12.5px; }

.scope { display: inline-flex; margin-top: 16px; padding: 4px; background: rgba(13, 26, 41, 0.7); border: 1px solid var(--line); border-radius: 999px; }
.scope button { padding: 7px 16px; font-size: 14px; font-weight: 600; color: var(--muted); background: transparent; border: 0; border-radius: 999px; cursor: pointer; }
.scope button[aria-pressed="true"] { color: #021218; background: var(--cyan); }
.scope-note { max-width: 62ch; margin: 8px auto 0; font-size: 13px; color: var(--faint); }
.has-3d .scope { pointer-events: auto; }

/* Part C: safeguard switches, timeline scrubber, equipment card */
.p3d-switch {
  flex: none; position: relative; width: 38px; height: 22px; margin-left: auto;
  background: rgba(150, 192, 222, 0.18); border: 1px solid var(--line-strong); border-radius: 999px; cursor: pointer;
  transition: background-color 0.25s;
}
.p3d-switch::after {
  content: ""; position: absolute; top: 2px; left: 2px; width: 16px; height: 16px;
  background: var(--muted); border-radius: 50%; transition: transform 0.25s, background-color 0.25s;
}
.p3d-switch[aria-checked="true"] { background: rgba(61, 220, 151, 0.35); border-color: var(--green); }
.p3d-switch[aria-checked="true"]::after { transform: translateX(16px); background: var(--green); }
.p3d-sg-item { align-items: flex-start; }
.p3d-cap-sg.is-acted { color: var(--green); }
.p3d-cap-sg.is-not-credited { color: var(--amber); }
.p3d-node.is-prevented { opacity: 0.3; text-decoration: line-through; }
.p3d-scrub { display: block; margin-top: 10px; }
.p3d-scrub input { width: 100%; accent-color: var(--cyan); }
.p3d-card {
  position: absolute; top: 168px; left: var(--gutter);
  width: min(320px, 80vw); max-height: 50vh; overflow-y: auto; padding: 16px 18px;
}
.p3d-card-close { float: right; padding: 4px 10px; font-size: 12.5px; color: var(--text); background: transparent; border: 1px solid var(--line-strong); border-radius: 999px; cursor: pointer; }
.p3d-card-tag { margin: 0; font: 900 30px var(--display); }
.p3d-card-sub { margin: 2px 0 8px; color: var(--muted); font-size: 13.5px; }
.p3d-card h4 { margin: 12px 0 6px; font-size: 13px; color: var(--muted); }
.p3d-card ul { margin: 0; padding-left: 1.1em; font-size: 13.5px; color: #C6D4E1; }
.p3d-card-none { margin: 0; font-size: 13.5px; color: var(--faint); }

/* ---------- P&ID upload and review ---------- */

.command-pid {
  flex: none; display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 16px; font-size: 14.5px; font-weight: 600; color: var(--text);
  background: transparent; border: 1px solid var(--line-strong); border-radius: 999px; cursor: pointer;
}
.command-pid:hover { border-color: var(--cyan); }
.is-pid body { overflow: hidden; }
.pid {
  position: fixed; inset: 0; z-index: 40; display: flex; flex-direction: column;
  background: rgba(6, 13, 22, 0.97); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
}
.pid-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; padding: 20px var(--gutter) 12px; border-bottom: 1px solid var(--line); }
.pid-title { margin: 0; font: 900 34px var(--display); }
.pid-reminder { margin: 6px 0 0; padding: 6px 12px; display: inline-block; font-size: 14px; font-weight: 600; color: #FFE6B8; background: rgba(255, 176, 32, 0.1); border: 1px solid rgba(255, 176, 32, 0.4); border-radius: 10px; }
.pid-close { padding: 9px 16px; font-size: 14px; font-weight: 600; color: var(--text); background: transparent; border: 1px solid var(--line-strong); border-radius: 999px; cursor: pointer; }
.pid-body { flex: 1; min-height: 0; overflow: auto; padding: 18px var(--gutter) 24px; display: flex; flex-direction: column; }
.pid-message { margin: 0 0 14px; color: var(--muted); font-size: 15.5px; }
.pid-message.is-error { color: #FF9A9D; }
.pid-pages { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 12px; margin-bottom: 16px; }
.pid-page { display: grid; gap: 6px; padding: 8px; font-size: 13.5px; color: var(--muted); border: 1px solid var(--line); border-radius: 12px; cursor: pointer; }
.pid-page img { width: 100%; height: 130px; object-fit: contain; background: #fff; border-radius: 6px; }
.pid-go { align-self: flex-start; }

.pid-review { flex: 1; min-height: 0; display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(360px, 1fr); gap: 20px; }
.pid-viewer { display: flex; flex-direction: column; min-height: 0; }
.pid-viewer-tools { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 8px; }
.pid-tab, .pid-zoom { padding: 6px 12px; font-size: 13.5px; font-weight: 600; color: var(--muted); background: transparent; border: 1px solid var(--line); border-radius: 999px; cursor: pointer; }
.pid-tab[aria-pressed="true"] { color: #021218; background: var(--cyan); border-color: var(--cyan); }
.pid-frame { flex: 1; min-height: 320px; overflow: hidden; background: #fff; border-radius: 12px; cursor: grab; touch-action: none; position: relative; }
.pid-frame img { position: absolute; top: 0; left: 0; width: 100%; transform-origin: 0 0; user-select: none; }
.pid-found { min-height: 0; overflow-y: auto; padding-right: 6px; }
.pid-summary { margin: 0 0 12px; font-size: 14.5px; color: var(--muted); }
.pid-group + .pid-group { margin-top: 18px; }
.pid-group-title { display: flex; align-items: center; gap: 8px; margin: 0 0 8px; font: 800 20px var(--display); }
.pid-row {
  position: relative; display: flex; flex-wrap: wrap; align-items: flex-end; gap: 6px 8px;
  padding: 10px 12px; margin-bottom: 6px; background: var(--panel-solid); border: 1px solid var(--line); border-radius: 10px;
}
.pid-row.is-low { border-color: rgba(255, 176, 32, 0.7); background: rgba(255, 176, 32, 0.08); }
.pid-flag { position: absolute; top: -8px; right: 10px; padding: 0 8px; font-size: 11.5px; font-weight: 700; color: #1a1205; background: var(--amber); border-radius: 999px; }
.pid-field { display: grid; gap: 2px; flex: 1 1 110px; font-size: 11.5px; color: var(--faint); }
.pid-f-description, .pid-f-design_intent, .pid-f-tags, .pid-f-function, .pid-f-service { flex-basis: 220px; }
.pid-field input, .pid-field select {
  padding: 6px 8px; font: 500 13.5px var(--sans); color: var(--text);
  background: rgba(8, 17, 28, 0.8); border: 1px solid var(--line); border-radius: 6px;
}
.pid-del { padding: 6px 10px; font-size: 12.5px; color: var(--muted); background: transparent; border: 1px solid var(--line); border-radius: 6px; cursor: pointer; }
.pid-del:hover { color: #FF9A9D; border-color: rgba(255, 82, 87, 0.6); }
.pid-add { margin-top: 2px; }
.pid-notes { margin: 0; padding-left: 1.1em; font-size: 13.5px; color: #C6D4E1; }
.pid-foot { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 12px; padding-top: 14px; margin-top: 14px; border-top: 1px solid var(--line); }
.pid-name { display: grid; gap: 4px; flex: 1 1 260px; font-size: 12.5px; color: var(--muted); }
.pid-name input { padding: 10px 14px; font: 500 15px var(--sans); color: var(--text); background: rgba(17, 33, 51, 0.7); border: 1px solid var(--line-strong); border-radius: 999px; }
.pid-foot .scope { margin-top: 0; }
@media (max-width: 900px) {
  .pid-review { grid-template-columns: 1fr; }
  .pid-frame { min-height: 260px; }
  .command-pid span { display: none; }
}
/* keep the review footer clear of the floating draft note */
.pid-body { padding-bottom: 76px; }
.dev-grid .dev-sources { grid-column: 1 / -1; }
.dev-grid .dev-sources p { margin: 0; font-size: 13.5px; color: var(--muted); }
td.cites { font-size: 13px; color: var(--muted); min-width: 140px; }
.nc-cite { color: var(--faint); }

/* Reviewed library match, under the command bar */
.library-match { max-width: 760px; margin: 14px auto 0; padding: 14px 18px; text-align: left; border-radius: 14px; }
.lm-head { margin: 0; font-size: 15px; color: var(--muted); }
.lm-head strong { color: var(--text); font-weight: 600; }
.lm-meta { margin: 4px 0 0; font-size: 13.5px; color: var(--faint); }
.lm-badge { display: inline-block; margin-left: 4px; padding: 1px 8px; font-size: 12px; color: var(--amber); border: 1px solid rgba(255, 176, 32, 0.4); border-radius: 999px; }
.lm-badge.is-reviewed { color: var(--green); border-color: rgba(61, 220, 151, 0.45); }
.lm-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-top: 10px; }
.lm-open { padding: 8px 16px; font: inherit; font-size: 14px; font-weight: 600; color: #021218; background: var(--cyan); border: 0; border-radius: 999px; cursor: pointer; }
.lm-open:hover, .lm-open:focus-visible { box-shadow: 0 6px 24px var(--cyan-glow); }
.lm-alt-label { margin-left: 6px; font-size: 13px; color: var(--faint); }
.lm-alt { font-size: 13px; padding: 5px 12px; }

/* Building blocks: interaction tags, notes and the equipment menu */
.row-tag { flex: none; padding: 1px 8px; font-size: 11.5px; font-weight: 600; color: var(--cyan); border: 1px solid rgba(59, 232, 255, 0.35); border-radius: 999px; }
.notice-info { color: var(--text); background: rgba(59, 232, 255, 0.06); border: 1px solid rgba(59, 232, 255, 0.35); }
.builder-toggle { display: block; margin: 12px auto 0; padding: 4px 8px; font: inherit; font-size: 14px; color: var(--muted); background: none; border: 0; text-decoration: underline; text-underline-offset: 3px; cursor: pointer; }
.builder-toggle:hover, .builder-toggle:focus-visible { color: var(--cyan); }
.builder { max-width: 760px; margin: 10px auto 0; padding: 16px 18px; text-align: left; border-radius: 14px; }
.builder-menu { display: flex; flex-wrap: wrap; gap: 6px; }
.builder-menu .chip { font-size: 13px; padding: 5px 12px; }
.builder-chain { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; min-height: 36px; margin: 14px 0 12px; padding: 8px 10px; border: 1px dashed var(--line-strong); border-radius: 10px; }
.builder-empty { font-size: 13.5px; color: var(--faint); }
.builder-arrow { color: var(--cyan); }
.builder-item { color: var(--text); border-color: rgba(59, 232, 255, 0.45); }
.lm-open:disabled { opacity: 0.45; cursor: not-allowed; box-shadow: none; }

/* Request a reviewed worksheet (tier 4) */
.request-form { max-width: 620px; margin: 16px auto 0; padding: 18px 20px; text-align: left; border-radius: 14px; display: grid; gap: 6px; }
.request-head { display: flex; justify-content: space-between; align-items: center; }
.request-title { margin: 0; font-family: var(--display); font-weight: 800; font-size: 26px; letter-spacing: 0.01em; }
.request-close { width: 32px; height: 32px; font-size: 20px; color: var(--muted); background: none; border: 1px solid var(--line); border-radius: 999px; cursor: pointer; }
.request-close:hover, .request-close:focus-visible { color: var(--text); border-color: var(--line-strong); }
.request-reason { margin: 0 0 6px; color: var(--amber); font-size: 14px; }
.request-reason:empty { display: none; }
.request-form label { margin-top: 6px; font-size: 13.5px; color: var(--muted); }
.request-form input, .request-form textarea { width: 100%; padding: 10px 12px; font: inherit; font-size: 15px; color: var(--text); background: rgba(8, 17, 28, 0.6); border: 1px solid var(--line-strong); border-radius: 10px; }
.request-form input:focus-visible, .request-form textarea:focus-visible { outline: 2px solid var(--cyan); outline-offset: 1px; }
.request-form .lm-open { justify-self: start; margin-top: 10px; }
.request-status { margin: 4px 0 0; min-height: 1.2em; font-size: 14px; color: var(--green); }
.request-status.is-error { color: #FF9A9D; }
.request-small { margin: 0; font-size: 12.5px; color: var(--faint); }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.command-pid.is-soon { cursor: default; opacity: 0.7; font-size: 12.5px; }

/* Row status badges, automatic check flags and the flag form */
.row-badge { flex: none; padding: 1px 8px; font-size: 11.5px; font-weight: 600; border-radius: 999px; border: 1px solid; white-space: nowrap; }
.row-badge.is-reviewed { color: var(--green); border-color: rgba(61, 220, 151, 0.5); }
.row-badge.is-checked { color: var(--sev-low); border-color: rgba(127, 166, 196, 0.45); }
.row-badge.is-draft { color: var(--amber); border-color: rgba(255, 176, 32, 0.45); }
.row-flagdot { flex: none; min-width: 20px; height: 20px; padding: 0 6px; font-size: 12px; font-weight: 700; line-height: 20px; text-align: center; color: #08111C; border-radius: 999px; }
.row-flagdot.is-amber { background: var(--amber); }
.row-flagdot.is-red { background: var(--red); }
.row-flags { margin: 0 0 12px; padding: 10px 14px 10px 30px; font-size: 13.5px; background: rgba(255, 176, 32, 0.07); border: 1px solid rgba(255, 176, 32, 0.3); border-radius: 10px; }
.row-flags li.is-red { color: #FFB1B3; }
.row-flags li.is-amber { color: #FFE6B8; }
.row-rereview { margin: 0 0 10px; padding: 8px 12px; font-size: 13.5px; color: var(--amber); border-left: 3px solid var(--amber); }
.row-reviewer { margin: 0 0 10px; font-size: 13px; color: var(--green); }
.row-flag { margin-top: 10px; }
.flag-btn, .flag-cancel { padding: 5px 12px; font: inherit; font-size: 13px; color: var(--muted); background: none; border: 1px solid var(--line-strong); border-radius: 999px; cursor: pointer; }
.flag-btn:hover, .flag-btn:focus-visible, .flag-cancel:hover { color: var(--text); border-color: var(--amber); }
.flag-form { display: grid; gap: 6px; max-width: 560px; }
.flag-form label { font-size: 13.5px; color: var(--muted); }
.flag-form textarea, .flag-form input { width: 100%; padding: 8px 10px; font: inherit; font-size: 14px; color: var(--text); background: rgba(8, 17, 28, 0.6); border: 1px solid var(--line-strong); border-radius: 8px; }
.flag-actions { display: flex; gap: 8px; align-items: center; }
.notice-link { color: var(--cyan); }