:root {
  color-scheme: light;
  --ink: #161616;
  --muted: #676767;
  --paper: #f5f3ec;
  --paper-dark: #e8e6df;
  --chrome: #1b1b1b;
  --chrome-2: #282828;
  --line: #494949;
  --grid: rgba(60, 60, 60, .16);
  --red: #bd1f25;
  --red-dark: #8f151a;
  --select: #e4a622;
  --cell: 32px;
}

* { box-sizing: border-box; }
html, body { min-height: 100%; }
body {
  margin: 0;
  color: #efefef;
  background: #111;
  font-family: Arial, Helvetica, sans-serif;
}
button, input { font: inherit; }
button { color: inherit; }

.app-shell { width: min(2000px, 100%); margin: 0 auto; padding: 14px; }
.topbar {
  display: grid;
  grid-template-columns: minmax(330px, 1fr) auto minmax(330px, 1fr);
  gap: 20px;
  align-items: end;
  padding: 10px 6px 16px;
}
.eyebrow, .section-heading p, .drawing-header p {
  margin: 0;
  color: #e54a50;
  font: 800 .75rem/1.2 "Courier New", monospace;
  letter-spacing: .13em;
}
h1, h2 { margin: 0; text-transform: uppercase; }
h1 { margin-top: 3px; font: 900 clamp(2rem, 4vw, 3.6rem)/.92 "Arial Narrow", Arial, sans-serif; letter-spacing: -.035em; }
h2 { margin-top: 3px; font: 900 1.25rem "Arial Narrow", Arial, sans-serif; }
.method-line { margin: 8px 0 0; color: #ababab; font-size: .9rem; }

.scale-card {
  display: grid;
  grid-template-columns: repeat(3, auto);
  gap: 1px;
  border: 1px solid #4d4d4d;
  background: #4d4d4d;
}
.scale-card div { min-width: 128px; padding: 10px 12px; background: #202020; }
.scale-card span, .scale-card b { display: block; }
.scale-card span { color: #999; font: 700 .65rem "Courier New", monospace; letter-spacing: .1em; }
.scale-card b { margin-top: 4px; font: 700 .78rem "Courier New", monospace; }

.top-actions, .deck-actions { display: flex; justify-content: flex-end; gap: 7px; }
.top-actions button, .top-actions .nav-button, .deck-actions button, .inspector-actions button {
  min-height: 39px;
  padding: 8px 11px;
  border: 1px solid #555;
  background: #242424;
  cursor: pointer;
  font: 800 .72rem "Courier New", monospace;
  letter-spacing: .04em;
}
.top-actions .nav-button { display: inline-flex; align-items: center; text-decoration: none; }
.top-actions button:hover, .top-actions .nav-button:hover, .deck-actions button:hover, .inspector-actions button:hover { border-color: #ddd; background: #333; }
.top-actions .primary-button { border-color: #e25156; background: var(--red-dark); }
.top-actions .primary-button.active { color: #191919; border-color: #efce71; background: #efce71; }
.danger-button { color: #ff9295; }
button:disabled { opacity: .35; cursor: not-allowed; }

.status-strip {
  display: grid;
  grid-template-columns: 190px 135px 155px 175px minmax(300px, 1fr);
  gap: 1px;
  border: 1px solid #3e3e3e;
  background: #3e3e3e;
}
.status-strip > div { padding: 9px 12px; background: #1e1e1e; }
.status-strip span, .status-strip strong { display: block; font-family: "Courier New", monospace; }
.status-strip span { color: #858585; font-size: .64rem; letter-spacing: .1em; }
.status-strip strong { margin-top: 3px; font-size: .8rem; }
.status-strip #tonnageStatus { color: #efce71; }

.workspace {
  display: grid;
  grid-template-columns: 270px minmax(650px, 1fr) 300px;
  gap: 10px;
  margin-top: 10px;
  height: calc(100vh - 190px);
  min-height: 560px;
}
.panel { min-width: 0; border: 1px solid #444; background: #202020; }
.palette-panel, .inspector-panel { padding: 17px; min-height: 0; }
.palette-panel { display:flex; flex-direction:column; overflow:hidden; }
.inspector-panel { overflow-y:auto; overscroll-behavior:contain; scrollbar-color:#777 #222; }
.section-heading { display: flex; gap: 10px; align-items: center; }
.section-heading > span {
  width: 33px;
  height: 33px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  color: #eee;
  border: 2px solid var(--red);
  font: 800 .78rem "Courier New", monospace;
}
.panel-note { margin: 16px 0; color: #aaa; font-size: .88rem; line-height: 1.5; }

.palette { display: grid; gap: 6px; min-height:0; overflow-y:auto; overscroll-behavior:contain; padding-right:4px; scrollbar-color:#777 #222; }
.palette-item {
  display: grid;
  grid-template-columns: 48px 1fr 18px;
  gap: 9px;
  align-items: center;
  width: 100%;
  min-height: 56px;
  padding: 7px;
  color: #ededed;
  text-align: left;
  border: 1px solid #494949;
  background: #292929;
  cursor: grab;
}
.palette-item:hover, .palette-item.active { border-color: #f0c85d; background: #353126; }
.palette-item:active { cursor: grabbing; }
.palette-icon {
  width: 48px;
  height: 40px;
  display: grid;
  place-items: center;
  color: #111;
  border: 1px solid #c9c6bd;
  background-color: var(--paper);
  background-image: linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 8px 8px;
  font: 900 .65rem "Courier New", monospace;
}
.palette-copy b, .palette-copy small { display: block; }
.palette-copy b { font-size: .88rem; }
.palette-copy small { margin-top: 3px; color: #9d9d9d; font-size: .7rem; line-height: 1.25; }
.drag-grip { color: #777; font-size: 1.2rem; }
.design-rule, .calculation-note { margin-top: 17px; padding: 12px; border-left: 3px solid var(--red); background: #181818; }
.palette-panel .design-rule { flex:0 0 auto; }
.design-rule b, .calculation-note b { color: #eb6a6f; font: 800 .7rem "Courier New", monospace; }
.design-rule p, .calculation-note p { margin: 6px 0 0; color: #aaa; font-size: .77rem; line-height: 1.5; }

.board-panel { display: flex; min-height: 0; flex-direction: column; padding: 10px; overflow: hidden; }
.board-panel > .deck-toolbar, .board-panel > .drawing-header, .board-panel > .board-foot { flex-shrink: 0; }
.deck-toolbar { display: flex; justify-content: space-between; gap: 10px; align-items: center; padding: 2px 2px 9px; }
.deck-tabs { display: flex; gap: 4px; flex-wrap: wrap; }
.deck-tab {
  min-height: 38px;
  padding: 7px 10px;
  color: #aaa;
  border: 1px solid #4c4c4c;
  border-bottom: 3px solid transparent;
  background: #282828;
  cursor: pointer;
  font: 800 .7rem "Courier New", monospace;
}
.deck-tab.active { color: #fff; border-bottom-color: var(--red); background: #343434; }
.deck-tab small { display: block; margin-top: 2px; color: #888; font-size: .58rem; }

.drawing-header { display: flex; justify-content: space-between; align-items: center; gap: 15px; padding: 9px 12px; color: var(--ink); background: var(--paper); border: 1px solid #aaa79f; border-bottom: 0; }
.drawing-header h2 { color: #171717; }
.legend { display: flex; gap: 12px; flex-wrap: wrap; justify-content: flex-end; color: #555; font-size: .72rem; }
.legend span { display: flex; gap: 5px; align-items: center; }
.legend-mark { width: 15px; height: 9px; display: inline-block; }
.legend-mark.center { border-top: 2px dashed var(--red); }
.legend-mark.service { background: repeating-linear-gradient(135deg, #ccc 0 2px, #f2f1eb 2px 5px); border: 1px solid #777; }
.legend-mark.room { background: #dad8d0; border: 2px solid #171717; }

.board-viewport {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  overflow-x: auto;
  scrollbar-gutter: stable;
  padding: 34px;
  border: 1px solid #a5a29a;
  background: #cbc9c2;
  scrollbar-color: #777 #222;
}

.deck-board {
  position: relative;
  width: calc(var(--cols) * var(--cell));
  height: calc(var(--rows) * var(--cell));
  margin: auto;
  isolation: isolate;
  outline: none;
  border: 1px solid #8b8982;
  background-color: var(--paper);
  background-image: linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: var(--cell) var(--cell);
  box-shadow: 0 5px 24px rgba(0, 0, 0, .25);
}
.deck-board:focus-visible { box-shadow: 0 0 0 3px #e3ab24, 0 5px 24px rgba(0, 0, 0, .25); }
.hull-layer { position: absolute; inset: 0; z-index: 0; width: 100%; height: 100%; overflow: visible; pointer-events: none; }
.hull-shape { fill: url(#serviceHatch); stroke: #171717; stroke-width: 3; vector-effect: non-scaling-stroke; }
.hull-inner { fill: none; stroke: #777; stroke-width: 1; stroke-dasharray: 5 4; vector-effect: non-scaling-stroke; }
.centerline { position: absolute; z-index: 1; top: 0; bottom: 0; left: 50%; width: 0; border-left: 2px dashed rgba(189, 31, 37, .7); pointer-events: none; }
.centerline.central-corridor { width: var(--cell); border-left: 2px solid rgba(189, 31, 37, .72); border-right: 2px solid rgba(189, 31, 37, .72); background: repeating-linear-gradient(135deg, rgba(189,31,37,.08) 0 5px, rgba(189,31,37,.16) 5px 7px); }
.centerline span { position: sticky; top: 5px; display: inline-block; transform: translateX(-50%); padding: 2px 4px; color: var(--red); background: var(--paper); font: 800 .58rem "Courier New", monospace; white-space: nowrap; }
.centerline.central-corridor span { transform: translateX(0); }
.reference-mode-button { padding: 7px 10px; color: #171717; border: 1px solid #8d8980; background: #ebe8df; cursor: pointer; font: 800 .68rem "Courier New", monospace; }
.reference-mode-button:hover { background: #fff; border-color: #171717; }
.module-layer { position: absolute; inset: 0; z-index: 2; }

.deck-module {
  position: absolute;
  left: calc(var(--x) * var(--cell));
  top: calc(var(--y) * var(--cell));
  width: calc(var(--w) * var(--cell));
  height: calc(var(--h) * var(--cell));
  display: grid;
  place-items: center;
  z-index: 3;
  min-width: var(--cell);
  min-height: var(--cell);
  color: #171717;
  border: 2px solid #171717;
  background: rgba(224, 222, 214, .96);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .75);
  cursor: grab;
  user-select: none;
  touch-action: none;
}
.deck-module:hover { background: #eceae3; }
.deck-module.selected { z-index: 7; outline: 3px solid var(--select); outline-offset: 2px; }
.deck-module.mirror { border-style: double; border-width: 4px; }
.deck-module.dragging { opacity: .7; cursor: grabbing; }
.deck-module[data-kind="corridor"] { background: rgba(244, 243, 238, .96); }
.deck-module[data-kind="cargo"] { background: repeating-linear-gradient(135deg, #e5e2d7 0 8px, #d9d5c7 8px 16px); }
.deck-module[data-kind="jfuel"], .deck-module[data-kind="mfuel"] { background: #aaa8a1; }
.deck-module[data-kind="jfuel"] .module-label, .deck-module[data-kind="mfuel"] .module-label { background: rgba(238,237,232,.88); }
.fuel-pattern { position:absolute; inset:4px; z-index:1; pointer-events:none; background:repeating-linear-gradient(135deg, transparent 0 8px, rgba(20,20,20,.16) 8px 9px); border:1px solid rgba(20,20,20,.35); }
.fuel-volume { position:absolute; z-index:3; right:4px; bottom:3px; padding:1px 3px; background:rgba(238,237,232,.86); color:#111; font:700 .48rem/1.2 "Courier New",monospace; }
.deck-module[data-kind="engine"] { background: #cfcdc6; }
.deck-module[data-kind="computer"] { background: #e0dce5; }
.deck-module[data-kind="bridge"] { background: #dcdee0; border-radius: 48% 48% 0 0 / 34% 34% 0 0; }
.deck-module[data-kind="bridge"] .module-label { margin-top: 39%; }
.deck-module[data-kind="ramp"] { background: repeating-linear-gradient(90deg, #dad7ce 0 7px, #8f8c85 7px 8px); }
.deck-module.ramp-top { transform: translateY(-52%); }
.deck-module.ramp-bottom { transform: translateY(52%); }
.deck-module.ramp-left { transform: translateX(-52%); }
.deck-module.ramp-right { transform: translateX(52%); }
.module-label { position: relative; z-index: 4; max-width: calc(100% - 10px); padding: 2px 4px; color: #111; background: rgba(245, 243, 236, .8); font: 800 .61rem/1.2 "Courier New", monospace; text-align: center; text-transform: uppercase; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.module-label small { display: block; color: #555; font-size: .5rem; }
.module-id { position: absolute; z-index: 5; top: 3px; left: 4px; color: #555; font: 700 .53rem "Courier New", monospace; }
.shape-edit-handle { position:absolute; z-index:30; left:calc(var(--hx) * var(--cell)); top:calc(var(--hy) * var(--cell)); transform:translate(-50%,-50%); padding:0; background:var(--select); border:3px solid #111; box-shadow:0 0 0 3px rgba(255,255,255,.96); touch-action:none; }
.resize-handle { width:30px; height:30px; border-radius:3px; cursor:nwse-resize; }
.corridor-stripe { position: absolute; inset: 45% 4%; border-top: 1px dashed #777; }
.deck-module.tall .corridor-stripe { inset: 4% 45%; border-top: 0; border-left: 1px dashed #777; }
.door-mark { position:absolute; z-index:9; padding:0; border:0; background:#111; box-shadow:none; cursor:pointer; overflow:visible; }
.door-n, .door-s { left:calc(50% - 10px); width:20px; height:5px; }
.door-n { top:-3px; }.door-s { bottom:-3px; }
.door-e, .door-w { top:calc(50% - 10px); width:5px; height:20px; }
.door-e { right:-3px; }.door-w { left:-3px; }
.door-id-wrap { position:absolute; inset:0; overflow:visible; pointer-events:none; }
.door-id { position:absolute; left:50%; top:50%; transform:translate(-50%,-50%); min-width:20px; padding:1px 2px; border:1px solid #111; background:#fff; color:#111; font:900 9px/1.15 "Courier New",monospace; white-space:nowrap; z-index:12; }
.door-n .door-id,.door-s .door-id { top:50%; }
.door-e .door-id,.door-w .door-id { left:50%; }
.seat, .nav-console, .computer-rack, .engine-core, .cargo-lines, .bridge-station, .bridge-systems { position: absolute; border: 1px solid #171717; background: #f5f3ec; }
.seat { width: 18%; height: 27%; top: 19%; border-radius: 45% 45% 10% 10%; }
.seat-a { left: 20%; }.seat-b { right: 20%; }
.nav-console { left: 27%; right: 27%; bottom: 11%; height: 18%; background: repeating-linear-gradient(90deg, #f5f3ec 0 7px, #aaa 7px 8px); }
.bridge-station { z-index:3; width:21%; height:21%; min-width:34px; min-height:28px; border-radius:45% 45% 12% 12%; display:flex; align-items:flex-end; justify-content:center; }
.bridge-station i { position:absolute; left:15%; right:15%; top:-7px; height:8px; border:1px solid #171717; background:#e8e6df; }
.bridge-station b { margin-bottom:2px; font:700 clamp(5px,.45rem,8px)/1 "Courier New",monospace; }
/* Bridge stations: NAV and SECURITY are pulled aft and face directly sideways.
   PILOT and COPILOT always face dead ahead; on narrow bridges they sit slightly aft
   rather than being rotated. Chair swivel/entry clearance is implied. */
.station-nav { left:6%; top:35%; transform:rotate(-90deg); }
.station-security { right:6%; top:35%; transform:rotate(90deg); }
.station-pilot { left:29%; top:24%; transform:none; }
.station-copilot { right:29%; top:24%; transform:none; }
.bridge-systems { z-index:2; left:28%; right:28%; bottom:8%; height:9%; background:repeating-linear-gradient(90deg,#f5f3ec 0 7px,#aaa 7px 8px); }
.computer-rack { top: 10%; bottom: 10%; width: 17%; background: repeating-linear-gradient(0deg, #e9e5ec 0 6px, #7e738a 6px 7px); }
.computer-rack.a { left: 8%; }.computer-rack.b { right: 8%; }
.engine-core { inset: 13% 20%; border: 2px solid #111; border-radius: 44% 12%; background: repeating-linear-gradient(90deg, #d7d5ce 0 7px, #333 7px 9px); }
.engine-core::after { content: ""; position: absolute; inset: 24%; border: 3px solid #111; border-radius: 50%; background: #eee; }
.cargo-lines { inset: 11%; border-style: dashed; background: transparent; }
.ramp-arrow { position: relative; z-index: 3; font-size: 1.2rem; }

.drop-cursor { position: absolute; z-index: 10; left: calc(var(--x) * var(--cell)); top: calc(var(--y) * var(--cell)); width: calc(var(--w) * var(--cell)); height: calc(var(--h) * var(--cell)); border: 3px dashed var(--red); background: rgba(189, 31, 37, .12); pointer-events: none; }
.board-foot { display: flex; justify-content: space-between; gap: 12px; padding: 9px 3px 0; color: #aaa; font: 700 .7rem "Courier New", monospace; }
#actionHint { color: #efce71; }

.inspector-empty { margin-top: 17px; padding: 17px; color: #aaa; border: 1px dashed #555; font-size: .88rem; line-height: 1.5; }
.identity-card { margin-top: 17px; padding: 13px; border: 1px solid #555; background: #181818; }
.identity-card b, .identity-card small { display: block; }
.identity-card b { font-size: .95rem; }.identity-card small { margin-top: 4px; color: #999; font: 700 .68rem "Courier New", monospace; }
.property { display: grid; grid-template-columns: 1fr auto; gap: 10px; align-items: center; padding: 10px 0; border-bottom: 1px solid #373737; }
.property span { color: #999; font-size: .82rem; }.property b { font: 700 .74rem "Courier New", monospace; text-align: right; }
.size-controls { display: grid; grid-template-columns: 1fr 1fr; gap: 7px; margin-top: 15px; }
.size-field { display: grid; gap: 5px; }.size-field span { color: #999; font: 700 .65rem "Courier New", monospace; }
.size-field input { width: 100%; padding: 8px; color: #eee; border: 1px solid #666; background: #151515; }
.inspector-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 7px; margin-top: 15px; }
.inspector-actions .delete { color: #ff9da0; }
.inspector-note { margin: 13px 0 0; color: #aaa; font-size: .76rem; line-height: 1.45; }

.accounting-panel { margin-top: 10px; padding: 17px; }
.accounting-head { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin-bottom: 15px; }
.accounting-head > p { max-width: 620px; margin: 0; color: #aaa; font-size: .82rem; line-height: 1.45; text-align: right; }
.accounting {
  display: grid;
  grid-template-columns: repeat(4, minmax(230px, 1fr));
  gap: 9px;
}
.account-card, .finance-card, .cost-card, .validation-card { min-width: 0; padding: 13px; border: 1px solid #4b4b4b; background: #181818; }
.account-card h3, .finance-card h3, .cost-card h3, .validation-card h3 { margin: 0 0 12px; color: #eee; font: 900 .82rem "Courier New", monospace; letter-spacing: .05em; text-transform: uppercase; }
.account-field { display: grid; gap: 5px; margin-top: 9px; }
.account-field > span, .account-subhead { color: #929292; font: 700 .62rem/1.25 "Courier New", monospace; letter-spacing: .06em; }
.account-field input, .account-field select {
  width: 100%;
  min-height: 35px;
  padding: 6px 8px;
  color: #eee;
  border: 1px solid #575757;
  background: #242424;
  font: 700 .73rem "Courier New", monospace;
}
.account-field input:focus, .account-field select:focus { outline: 2px solid var(--select); outline-offset: 1px; }
.account-field select:disabled { opacity: .45; }
.account-readout { display: flex; align-items: center; justify-content: space-between; gap: 10px; min-height: 34px; margin-top: 8px; padding: 6px 0; border-bottom: 1px solid #363636; }
.account-readout span { color: #999; font-size: .75rem; }
.account-readout b { color: #eee; font: 800 .73rem "Courier New", monospace; text-align: right; }
.check-field { display: flex; align-items: flex-start; gap: 8px; margin-top: 12px; color: #bbb; font-size: .75rem; line-height: 1.35; }
.check-field input { accent-color: var(--red); }
.rating-pair, .compact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 7px; }
.compact-grid { grid-template-columns: repeat(3, 1fr); }
.weapons-grid { grid-template-columns: 1fr 1fr; }
.account-subhead { margin-top: 13px; padding-top: 10px; border-top: 1px solid #373737; }
.rule-chip { margin-top: 11px; padding: 7px; border: 1px solid; font: 800 .65rem "Courier New", monospace; text-align: center; }
.rule-chip.ok { color: #9ee3ae; border-color: #356d42; background: #1e3123; }
.rule-chip.bad { color: #ffacae; border-color: #7b373a; background: #351d1f; }

.account-summary { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(5, minmax(150px, 1fr)); gap: 1px; border: 1px solid #555; background: #555; }
.account-summary > div { min-height: 70px; padding: 11px; background: #282828; }
.account-summary span, .account-summary strong, .account-summary small { display: block; font-family: "Courier New", monospace; }
.account-summary span { color: #888; font-size: .6rem; letter-spacing: .08em; }
.account-summary strong { margin-top: 7px; color: #efce71; font-size: .88rem; }
.account-summary small { margin-top: 3px; color: #999; font-size: .6rem; }
.finance-card { grid-column: 1 / 3; display: grid; grid-template-columns: minmax(230px, 1fr) 180px; gap: 10px 18px; align-items: end; }
.finance-card p { margin: 0; color: #aaa; font-size: .75rem; line-height: 1.45; }
.mortgage-track { grid-column: 1 / -1; height: 13px; overflow: hidden; border: 1px solid #626262; background: #292929; }
.mortgage-track span { display: block; height: 100%; background: var(--red); transition: width .2s ease; }
.mortgage-numbers { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; }
.mortgage-numbers b { padding: 8px; color: #ddd; border: 1px solid #3e3e3e; background: #222; font: 700 .68rem/1.35 "Courier New", monospace; text-align: center; }
.service-liability { grid-column: 1 / -1; padding: 10px; border-left: 3px solid #e2aa2e; background: #2b271c; }
.service-liability b { display: block; margin-bottom: 4px; color: #efce71; font: 800 .65rem "Courier New", monospace; }
.cost-card { grid-column: 3 / 5; }
.ledger-row { display: flex; justify-content: space-between; gap: 15px; padding: 6px 0; color: #aaa; border-bottom: 1px solid #303030; font-size: .7rem; }
.ledger-row b { flex: 0 0 auto; color: #eee; font-family: "Courier New", monospace; }
.ledger-row.subtotal { margin-top: 4px; color: #ddd; border-top: 2px solid #666; }
.ledger-row.subtotal b { color: #efce71; }
.validation-card { grid-column: 1 / -1; }
.validation-card ul { display: grid; grid-template-columns: repeat(2, minmax(240px, 1fr)); gap: 5px 22px; margin: 0; padding-left: 20px; color: #f0b9ba; font-size: .75rem; line-height: 1.45; }
.validation-card.valid { border-color: #3f6b48; background: #18221a; }
.validation-card.valid h3 { color: #9ee3ae; }
.validation-card > p { margin: 0; color: #aaa; font-size: .75rem; line-height: 1.45; }
.validation-card .rules-note { margin-top: 10px; padding-top: 9px; color: #888; border-top: 1px solid #383838; }


/* VIEWPORT MODE: turn the workshop into a full-height CAD-style workspace.
   Ship data is untouched; this only changes presentation. */
body.viewport-mode { overflow: hidden; }
body.viewport-mode .app-shell { width: 100%; height: 100vh; padding: 6px; overflow: hidden; }
body.viewport-mode .topbar,
body.viewport-mode .status-strip,
body.viewport-mode .accounting-panel { display: none !important; }
body.viewport-mode .workspace { height: calc(100vh - 12px); min-height: 0; margin-top: 0; }
body.viewport-mode .palette-panel,
body.viewport-mode .inspector-panel { padding: 10px; }
body.viewport-mode .palette-panel .panel-note,
body.viewport-mode .palette-panel .design-rule,
body.viewport-mode .inspector-panel .calculation-note { display: none; }
body.viewport-mode .palette-panel .section-heading,
body.viewport-mode .inspector-panel > .section-heading { margin-bottom: 8px; }
body.viewport-mode .board-panel { padding: 6px; }
body.viewport-mode .deck-toolbar { padding-bottom: 5px; }
body.viewport-mode .drawing-header { padding: 6px 9px; }
body.viewport-mode .board-viewport { padding: 24px; scrollbar-gutter: stable both-edges; }
#viewportModeBtn.active { color: #191919; border-color: #efce71; background: #efce71; }
@media (max-width: 1280px) {
  .workspace { grid-template-columns: 240px minmax(600px, 1fr); }
  .inspector-panel { grid-column: 1 / -1; }
  .topbar { grid-template-columns: 1fr auto; }
  .scale-card { grid-row: 2; grid-column: 1 / -1; justify-self: start; }
  .accounting { grid-template-columns: repeat(2, minmax(240px, 1fr)); }
  .account-summary, .validation-card { grid-column: 1 / -1; }
  .account-summary { grid-template-columns: repeat(3, 1fr); }
  .finance-card, .cost-card { grid-column: auto; }
}
@media (max-width: 820px) {
  .app-shell { padding: 8px; }
  .topbar { display: flex; align-items: flex-start; flex-direction: column; }
  .scale-card { width: 100%; overflow-x: auto; }.scale-card div { min-width: 120px; }
  .top-actions { width: 100%; flex-wrap: wrap; }.top-actions button, .top-actions .nav-button { flex: 1; justify-content: center; }
  .status-strip { grid-template-columns: 1fr 1fr; }.status-wide { grid-column: 1 / -1; }
  .workspace { grid-template-columns: 1fr; height:auto; min-height:0; }.palette-panel, .inspector-panel { padding: 13px; overflow:visible; }.palette-panel { display:block; }
  .palette { grid-template-columns: repeat(2, minmax(0, 1fr)); }.palette-item { grid-template-columns: 40px 1fr; }.palette-icon { width: 40px; }.drag-grip { display: none; }
  .deck-toolbar, .drawing-header { align-items: flex-start; flex-direction: column; }.deck-actions { justify-content: flex-start; flex-wrap: wrap; }
  .board-panel { min-height: 650px; }.board-viewport { min-height: 510px; padding: 28px; }
  .legend { justify-content: flex-start; }.board-foot { align-items: flex-start; flex-direction: column; }
  .accounting-head { align-items: flex-start; flex-direction: column; }.accounting-head > p { text-align: left; }
  .accounting { grid-template-columns: 1fr; }.account-summary, .finance-card, .cost-card, .validation-card { grid-column: 1; }
  .account-summary { grid-template-columns: 1fr 1fr; }.finance-card { grid-template-columns: 1fr; }.mortgage-track, .mortgage-numbers, .service-liability { grid-column: 1; }
  .mortgage-numbers { grid-template-columns: 1fr; }.validation-card ul { grid-template-columns: 1fr; }
}
/* 0.1.3 BUILD / SOLIDIFY foundation */
.deck-module.solidified { border-width: 3px; }
.deck-module.solidified::after { content:"SOLID"; position:absolute; right:3px; top:3px; z-index:9; font:700 .45rem "Courier New",monospace; background:#171717; color:#fff; padding:1px 3px; }
.deck-module[data-kind="corridor"] { background: transparent; border-color: transparent; box-shadow:none; }
.corridor-cell { position:absolute; left:calc(var(--cx) * var(--cell)); top:calc(var(--cy) * var(--cell)); width:var(--cell); height:var(--cell); box-sizing:border-box; border:2px solid #171717; background:rgba(244,243,238,.96); }
.deck-module[data-kind="corridor"] .module-label { z-index:6; pointer-events:none; }
.deck-module[data-kind="corridor"] .module-id { z-index:7; }
.corridor-grow { position:absolute; z-index:12; width:18px; height:18px; padding:0; border:2px solid #111; border-radius:50%; background:var(--select); cursor:crosshair; touch-action:none; left:calc(var(--cx) * var(--cell) + var(--cell)/2 - 9px); top:calc(var(--cy) * var(--cell) + var(--cell)/2 - 9px); }
.corridor-grow.dir-n { transform:translateY(calc(var(--cell) / -2)); }
.corridor-grow.dir-s { transform:translateY(calc(var(--cell) / 2)); }
.corridor-grow.dir-e { transform:translateX(calc(var(--cell) / 2)); }
.corridor-grow.dir-w { transform:translateX(calc(var(--cell) / -2)); }
/* v0.1.8 accommodation objects */
.deck-module[data-kind="passengerseat"] { background:#e7e5df; }
.deck-module[data-kind="passengerseat"] .module-id { font-size:7px; }
.deck-module[data-kind="passengerseat"] .module-label { display:none; }
.passenger-chair { position:absolute; left:24%; top:28%; width:52%; height:48%; border:1px solid #171717; border-radius:42% 42% 12% 12%; background:#f5f3ec; }
.passenger-chair::before { content:""; position:absolute; left:16%; right:16%; top:-5px; height:6px; border:1px solid #171717; background:#ddd; }
.seat-locker,.seat-screen { position:absolute; z-index:4; font:700 5px/1 "Courier New",monospace; }
.seat-locker { left:2px; bottom:2px; }.seat-screen { right:2px; top:2px; }
.deck-module[data-kind="brig"] { background:#deddd7; }
.deck-module[data-kind="brig"] .module-label { font-size:9px; }
.brig-partition { position:absolute; z-index:3; background:#171717; }
.brig-partition.brig-r0,.brig-partition.brig-r180 { left:calc(50% - .5px); top:0; width:1px; height:100%; }
.brig-partition.brig-r90,.brig-partition.brig-r270 { top:calc(50% - .5px); left:0; height:1px; width:100%; }
.brig-door { position:absolute; z-index:6; padding:0; border:0; background:#111; overflow:visible; cursor:pointer; }
.brig-door.brig-r0 { bottom:-3px; width:20px; height:5px; }
.brig-door-a.brig-r0 { left:calc(25% - 10px); }.brig-door-b.brig-r0 { left:calc(75% - 10px); }
.brig-door.brig-r90 { left:-3px; width:5px; height:20px; }
.brig-door-a.brig-r90 { top:calc(25% - 10px); }.brig-door-b.brig-r90 { top:calc(75% - 10px); }
.brig-door.brig-r180 { top:-3px; width:20px; height:5px; }
.brig-door-a.brig-r180 { left:calc(75% - 10px); }.brig-door-b.brig-r180 { left:calc(25% - 10px); }
.brig-door.brig-r270 { right:-3px; width:5px; height:20px; }
.brig-door-a.brig-r270 { top:calc(75% - 10px); }.brig-door-b.brig-r270 { top:calc(25% - 10px); }
.brig-bunk { position:absolute; z-index:3; border:1px solid #171717; background:repeating-linear-gradient(0deg,#f5f3ec 0 5px,#aaa 5px 6px); font:700 5px/1 "Courier New",monospace; text-align:center; }
.brig-bunk.brig-r0,.brig-bunk.brig-r180 { width:18%; height:52%; top:20%; writing-mode:vertical-rl; padding-top:3px; }
.brig-bunk.bunk-a.brig-r0,.brig-bunk.bunk-a.brig-r180 { left:7%; }.brig-bunk.bunk-b.brig-r0,.brig-bunk.bunk-b.brig-r180 { right:7%; }
.brig-bunk.brig-r90,.brig-bunk.brig-r270 { height:18%; width:52%; left:24%; writing-mode:horizontal-tb; padding-top:2px; }
.brig-bunk.bunk-a.brig-r90,.brig-bunk.bunk-a.brig-r270 { top:7%; }.brig-bunk.bunk-b.brig-r90,.brig-bunk.bunk-b.brig-r270 { bottom:7%; }
/* v0.1.10 pressure-routing parts */
.deck-module[data-kind="airlock"],.deck-module[data-kind^="junction"]{background:#e4e2db;}
.deck-module[data-kind="airlock"] .module-label,.deck-module[data-kind^="junction"] .module-label{font-size:7px;white-space:normal;}
.fixed-door{padding:0;cursor:pointer;}
.fixed-door.manual-hatch{outline:1px dotted #555;outline-offset:2px;}
.connection-core{position:absolute;inset:32% 8%;display:flex;align-items:center;justify-content:center;border:1px dashed #777;font:700 6px/1 "Courier New",monospace;z-index:2;}

#identifyDoorsBtn.active{outline:2px solid #111;outline-offset:2px;}


/* v0.1.10 geometry / clean-print additions */
#identifyRoomsBtn.active{outline:2px solid #111;outline-offset:2px;}
.deck-module[data-kind="engineering"]{background:#d8d8d2;}
.engineering-core{position:absolute;inset:24% 18%;display:flex;align-items:center;justify-content:center;border:1px dashed #666;color:#555;font:800 10px/1 "Courier New",monospace;}
.deck-module[data-kind="vehiclebay"]{background:repeating-linear-gradient(90deg,#e6e4dc 0 15px,#d8d5ca 15px 16px);}
.vehicle-bay-mark{position:absolute;inset:30% 12%;display:flex;align-items:center;justify-content:center;border:1px dashed #777;color:#555;font:800 9px/1.1 "Courier New",monospace;}
.deck-module[data-kind="triangle"]{transform-origin:center;background:#d1d0c9;overflow:visible;}
.deck-module[data-kind="triangle"].triangle-r0{clip-path:polygon(0 0,100% 100%,0 100%);}
.deck-module[data-kind="triangle"].triangle-r90{clip-path:polygon(0 0,100% 0,0 100%);}
.deck-module[data-kind="triangle"].triangle-r180{clip-path:polygon(0 0,100% 0,100% 100%);}
.deck-module[data-kind="triangle"].triangle-r270{clip-path:polygon(100% 0,100% 100%,0 100%);}
.deck-module[data-kind="triangle"].triangle-jfuel,.deck-module[data-kind="triangle"].triangle-mfuel{background:#aaa8a1;}
.triangle-role{position:absolute;z-index:4;padding:1px 3px;background:rgba(245,243,236,.88);color:#333;font:900 9px/1 "Courier New",monospace;transform:none;white-space:nowrap;}
/* Triangle role mark follows the 90-degree corner, but the glyph itself never rotates. */
.deck-module[data-kind="triangle"].triangle-r0 .triangle-role{left:5px;bottom:5px;top:auto;right:auto;}
.deck-module[data-kind="triangle"].triangle-r90 .triangle-role{left:5px;top:5px;right:auto;bottom:auto;}
.deck-module[data-kind="triangle"].triangle-r180 .triangle-role{right:5px;top:5px;left:auto;bottom:auto;}
.deck-module[data-kind="triangle"].triangle-r270 .triangle-role{right:5px;bottom:5px;left:auto;top:auto;}

/* v0.1.10 vertical infrastructure slice */
.deck-module[data-kind="vertical"]{background:#deddd7;overflow:visible;}
.vertical-mark{position:absolute;inset:4px;display:flex;align-items:center;justify-content:center;border:2px solid #333;border-radius:50%;background:#f1f0ea;color:#222;font:900 11px/1 "Courier New",monospace;letter-spacing:-1px;}
.deck-module[data-kind="vertical"] .vertical-mark::before{content:"";position:absolute;left:50%;top:-5px;bottom:-5px;border-left:1px solid #555;transform:translateX(-50%);z-index:-1;}
.vertical-id{position:absolute;z-index:6;left:50%;top:calc(100% + 3px);transform:translateX(-50%);padding:1px 3px;background:rgba(245,243,236,.94);border:1px solid #aaa;color:#333;font:800 7px/1 "Courier New",monospace;white-space:nowrap;}

/* Vehicle bay exterior access */
.vehicle-slide-door{position:absolute;z-index:8;background:repeating-linear-gradient(90deg,#222 0 3px,#ddd 3px 7px);box-sizing:border-box;pointer-events:none}
.vehicle-door-s{height:7px;bottom:-3px;border-top:2px solid #111;border-bottom:2px solid #111}
.vehicle-door-w,.vehicle-door-e{width:7px;border-left:2px solid #111;border-right:2px solid #111;background:repeating-linear-gradient(0deg,#222 0 3px,#ddd 3px 7px)}
.vehicle-door-w{left:-3px}.vehicle-door-e{right:-3px}
.vehicle-ramp{position:absolute;z-index:5;box-sizing:border-box;border:1px solid #555;background:repeating-linear-gradient(135deg,rgba(80,80,80,.15) 0 5px,rgba(255,255,255,.55) 5px 10px);pointer-events:none;overflow:visible}
.vehicle-ramp i{position:absolute;font:700 7px/1 "Courier New",monospace;color:#555;font-style:normal;letter-spacing:.5px}
.vehicle-ramp-s{height:24px;bottom:-24px}.vehicle-ramp-s i{left:50%;top:8px;transform:translateX(-50%)}
.vehicle-ramp-w,.vehicle-ramp-e{width:24px}.vehicle-ramp-w{left:-24px}.vehicle-ramp-e{right:-24px}.vehicle-ramp-w i,.vehicle-ramp-e i{top:50%;left:2px;transform:translateY(-50%) rotate(90deg)}
.vertical-lower-end{opacity:.72;outline:2px dashed #666;outline-offset:-3px;cursor:default!important}
.vertical-lower-end::after{content:"FROM ABOVE";position:absolute;left:50%;top:100%;transform:translate(-50%,2px);white-space:nowrap;font:700 7px/1 "Courier New",monospace;background:#fff;padding:1px 2px;color:#555;z-index:20}


/* v0.1.10 multi-deck vertical + zoom / WYSIWYG print slice */
.view-controls{display:flex;align-items:center;gap:5px;flex-wrap:wrap;justify-content:center}
.view-controls button{padding:6px 8px;font:800 .62rem "Courier New",monospace;border:1px solid #8d8980;background:#ebe8df;color:#171717;cursor:pointer}
.view-controls button:hover{background:#fff;border-color:#171717}
#zoomReadout{min-width:42px;text-align:center;color:#333;font:800 .66rem "Courier New",monospace}
.vertical-deck-picker{margin:8px 0;padding:8px;border:1px solid #aaa;background:#e9e7df;display:grid;gap:4px}
.vertical-deck-picker>span{font:900 .62rem "Courier New",monospace;color:#555}
.vertical-deck-picker label{display:block;font:700 .68rem "Courier New",monospace;color:#222}
.vertical-served-end{opacity:.76;outline:2px dashed #555;outline-offset:-3px;cursor:default!important}
.vertical-served-end::after{content:"LINKED ACCESS";position:absolute;left:50%;top:100%;transform:translate(-50%,2px);white-space:nowrap;font:700 7px/1 "Courier New",monospace;background:#fff;padding:1px 2px;color:#555;z-index:20}
@media print{.vertical-served-end{opacity:1}.vertical-served-end::after{display:none}}

/* Robust viewport zoom: shell owns scrollable dimensions; board is visually scaled. */
.board-zoom-shell { position: relative; flex: 0 0 auto; margin: auto; }
.board-zoom-shell > .deck-board { position: absolute; left: 0; top: 0; margin: 0; transform-origin: top left; }

/* v0.1.10 A4 print-page overlay slice */
.print-page-layer{position:absolute;inset:0;z-index:8;pointer-events:none}
.print-page-frame{position:absolute;box-sizing:border-box;border:2px dashed #2b5d87;background:rgba(255,255,255,.055);pointer-events:auto;cursor:move;touch-action:none}
.print-page-frame.selected{border:3px solid #1e4f78;background:rgba(30,79,120,.07)}
.print-page-label{position:absolute;left:5px;top:5px;padding:2px 5px;background:#fff;border:1px solid #333;color:#111;font:900 10px/1.2 "Courier New",monospace;pointer-events:none}
.print-page-crop{position:absolute;width:9px;height:9px;border-color:#111;pointer-events:none}.print-page-crop.tl{left:-1px;top:-1px;border-left:1px solid;border-top:1px solid}.print-page-crop.tr{right:-1px;top:-1px;border-right:1px solid;border-top:1px solid}.print-page-crop.bl{left:-1px;bottom:-1px;border-left:1px solid;border-bottom:1px solid}.print-page-crop.br{right:-1px;bottom:-1px;border-right:1px solid;border-bottom:1px solid}
.print-page-panel{margin-top:17px;padding-top:14px;border-top:1px solid #444}.print-page-panel>b{color:#eb6a6f;font:800 .7rem "Courier New",monospace}.print-page-actions{display:grid;grid-template-columns:1fr 1fr;gap:6px;margin-top:8px}.print-page-actions button,.print-page-menu button,.print-page-inspector button{padding:7px;border:1px solid #555;background:#282828;color:#ddd;cursor:pointer;font:800 .65rem "Courier New",monospace}.print-page-actions #togglePrintPagesBtn{grid-column:1/-1}.print-page-menu{display:flex;flex-wrap:wrap;gap:5px;margin-top:8px}.print-page-menu button.active{background:#eee;color:#111;border-color:#eee}.print-page-inspector{margin-top:8px;color:#aaa;font-size:.75rem;line-height:1.4}.print-page-inspector .page-tools{display:grid;grid-template-columns:1fr 1fr;gap:6px;margin-top:7px}.print-page-inspector .delete-page{color:#ff9da0}
.print-page-hidden .print-page-frame{display:none}
@media print{.print-page-layer{display:none!important}}

.deck-transfer-field select {
  width: 100%;
  min-height: 36px;
  border: 1px solid #8a8a8a;
  background: #fff;
  color: #111;
  padding: 6px 8px;
  font: inherit;
}


/* v0.1.10 XRAY Main Deck reference overlay */
.xray-layer{position:absolute;inset:0;z-index:1;pointer-events:none;display:none;opacity:.23;filter:grayscale(1);overflow:hidden}
.xray-layer.active{display:block}
.xray-layer .xray-ghost{pointer-events:none!important;user-select:none!important}
.xray-layer .xray-ghost *{pointer-events:none!important}
.xray-layer .xray-hull{position:absolute;inset:0;width:100%;height:100%;overflow:visible;pointer-events:none}
.xray-layer .xray-hull .hull-shape{fill:none;stroke:#555;stroke-width:5;vector-effect:non-scaling-stroke}
@media print{.xray-layer{display:none!important}}

/* A4 guides are movable print overlays; drag freely, snap on release. */
.print-page-frame { touch-action:none; cursor:grab; }
.print-page-frame.dragging { cursor:grabbing; }

/* Saved center: SET CENTER deliberately uses a warning colour because it overwrites the stored camera position. */
#setCenterViewBtn {
  background: #f0c85d;
  border-color: #9b7410;
  color: #171717;
}
#setCenterViewBtn:hover {
  background: #ffe08a;
  border-color: #171717;
}

/* v0.1.11 shape and fuselage molding */
.skew-handle{width:30px;height:30px;border-radius:50%;cursor:move;}
.hull-layer.molding,.hull-layer:has(.hull-control){pointer-events:auto;}
.hull-control{fill:#ffd52a;stroke:#111;stroke-width:2;vector-effect:non-scaling-stroke;cursor:move;pointer-events:auto;}
.hull-add-control{fill:#fff;stroke:#111;stroke-width:2;vector-effect:non-scaling-stroke;cursor:copy;pointer-events:auto;}