/* ============================================================
   Blueprint sheet — cyanotype aesthetic
   ============================================================ */

:root {
  --paper: #0d2b4f;
  --paper-deep: #092040;
  --grid-minor: rgba(143, 208, 255, 0.07);
  --grid-major: rgba(143, 208, 255, 0.16);
  --ink: #e8f1fd;
  --ink-dim: #a7c4e4;
  --line: rgba(143, 208, 255, 0.55);
  --line-soft: rgba(143, 208, 255, 0.28);
  --accent: #8fd0ff;
  --c-vert: #79c7ff;
  --c-rung: #ffbe5c;
  --c-plank: #7defa8;
  --c-warn: #ff8f7d;
  --font-display: 'Saira Stencil One', sans-serif;
  --font-label: 'Saira Semi Condensed', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scrollbar-color: var(--line-soft) var(--paper-deep); }

body {
  background: var(--paper-deep);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.45;
  min-height: 100vh;
  padding: 18px;
}

.sheet {
  max-width: 1340px;
  margin: 0 auto;
  background:
    linear-gradient(var(--grid-major) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-major) 1px, transparent 1px),
    linear-gradient(var(--grid-minor) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-minor) 1px, transparent 1px),
    radial-gradient(ellipse at 30% 0%, #10345e 0%, var(--paper) 55%, #0a2445 100%);
  background-size: 120px 120px, 120px 120px, 24px 24px, 24px 24px, cover;
  border: 1px solid var(--line);
  box-shadow: 0 0 0 6px var(--paper-deep), 0 0 60px rgba(0, 0, 0, 0.6);
}

.sheet-frame {
  border: 2px solid var(--line);
  outline: 1px solid var(--line-soft);
  outline-offset: 4px;
  margin: 12px;
  padding: clamp(14px, 2.5vw, 34px);
}

/* ---------- masthead ---------- */

.masthead {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 20px;
  flex-wrap: wrap;
  border-bottom: 2px solid var(--line);
  padding-bottom: 18px;
  margin-bottom: 26px;
}

.site-title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(34px, 5.5vw, 62px);
  letter-spacing: 0.04em;
  line-height: 0.95;
  color: var(--ink);
  text-shadow: 0 0 22px rgba(143, 208, 255, 0.35);
}

.title-accent {
  display: block;
  color: var(--accent);
  -webkit-text-stroke: 1px var(--accent);
  -webkit-text-fill-color: transparent;
}

.site-sub {
  font-family: var(--font-label);
  font-weight: 500;
  letter-spacing: 0.28em;
  font-size: clamp(9px, 1.4vw, 12px);
  color: var(--ink-dim);
  margin-top: 10px;
}

.masthead-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
}

.stamp {
  border: 1px solid var(--line);
  padding: 8px 12px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  transform: rotate(-1.2deg);
  background: rgba(9, 32, 64, 0.5);
}

.stamp-line {
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--ink-dim);
}

.print-btn {
  font-family: var(--font-label);
  font-weight: 600;
  letter-spacing: 0.18em;
  font-size: 12px;
  color: var(--paper-deep);
  background: var(--accent);
  border: none;
  padding: 9px 18px;
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}

.print-btn:hover {
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0 var(--line);
}

/* ---------- panels ---------- */

.drawing-area {
  display: grid;
  grid-template-columns: minmax(320px, 5fr) minmax(380px, 7fr);
  gap: 22px;
  margin-bottom: 22px;
}

.schedules {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}

.panel {
  border: 1px solid var(--line);
  background: rgba(9, 32, 64, 0.45);
  padding: 18px 20px 20px;
  position: relative;
}

.panel::before,
.panel::after {
  content: '';
  position: absolute;
  width: 9px;
  height: 9px;
  border: 1px solid var(--accent);
}

.panel::before { top: -5px; left: -5px; border-width: 1px 0 0 1px; }
.panel::after  { bottom: -5px; right: -5px; border-width: 0 1px 1px 0; }

.panel-title {
  font-family: var(--font-label);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.22em;
  border-bottom: 1px solid var(--line-soft);
  padding-bottom: 10px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.panel-key {
  font-size: 10px;
  font-weight: 600;
  color: var(--paper-deep);
  background: var(--accent);
  padding: 2px 7px;
  letter-spacing: 0.16em;
  flex-shrink: 0;
}

.sub-title {
  font-family: var(--font-label);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin: 18px 0 4px;
}

/* ---------- config panel ---------- */

.field-group { margin-bottom: 22px; }

.field-label {
  display: block;
  font-family: var(--font-label);
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--accent);
  margin-bottom: 9px;
}

.field-note {
  font-size: 10.5px;
  color: var(--ink-dim);
  margin-top: 8px;
  letter-spacing: 0.03em;
}

/* grid picker */

.grid-picker {
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  gap: 3px;
  max-width: 380px;
}

.gp-cell {
  aspect-ratio: 1;
  border: 1px solid var(--line-soft);
  background: transparent;
  cursor: pointer;
  padding: 0;
  transition: background 0.08s ease, border-color 0.08s ease;
}

.gp-cell:hover { border-color: var(--accent); }
.gp-cell.hovered { background: rgba(143, 208, 255, 0.22); border-color: var(--accent); }
.gp-cell.active { background: rgba(143, 208, 255, 0.45); border-color: var(--accent); }
.gp-cell.corner { background: var(--accent); }

.gp-cell:disabled {
  cursor: not-allowed;
  border-style: dashed;
  border-color: rgba(255, 143, 125, 0.4);
  background: repeating-linear-gradient(45deg, transparent, transparent 3px, rgba(255, 143, 125, 0.16) 3px, rgba(255, 143, 125, 0.16) 5px);
}

.grid-readout {
  margin-top: 9px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--ink);
}

/* slide toggle */

.slide-toggle { display: flex; gap: 10px; flex-wrap: wrap; }

.slide-opt {
  flex: 1;
  min-width: 150px;
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--line-soft);
  background: transparent;
  color: var(--ink-dim);
  font-family: var(--font-label);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.12em;
  padding: 9px 12px;
  cursor: pointer;
  text-align: left;
  transition: border-color 0.1s ease, color 0.1s ease, background 0.1s ease;
}

.slide-opt small {
  display: block;
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 9px;
  letter-spacing: 0.04em;
  margin-top: 3px;
  opacity: 0.75;
}

.slide-opt svg { width: 62px; height: 46px; flex-shrink: 0; }
.tgl-bin { fill: none; stroke: currentColor; stroke-width: 1.6; stroke-dasharray: 4 3; }
.tgl-arrow { fill: none; stroke: currentColor; stroke-width: 2; }
.tgl-txt { fill: currentColor; font-size: 7px; text-anchor: middle; letter-spacing: 0.1em; font-family: var(--font-mono); }

.slide-opt.active {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(143, 208, 255, 0.08);
  box-shadow: inset 0 0 0 1px var(--accent);
}

/* bin inputs */

.bin-inputs { display: flex; gap: 10px; flex-wrap: wrap; }

.bin-inputs label {
  flex: 1;
  min-width: 82px;
  font-family: var(--font-label);
  font-weight: 600;
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--ink-dim);
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.bin-inputs input {
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 500;
  color: var(--ink);
  background: rgba(9, 32, 64, 0.7);
  border: 1px solid var(--line-soft);
  border-bottom: 2px solid var(--accent);
  padding: 8px 10px;
  width: 100%;
}

.bin-inputs input:focus {
  outline: none;
  border-color: var(--accent);
  background: rgba(143, 208, 255, 0.08);
}

/* summary strip */

.summary-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3px;
  border: 1px solid var(--line);
  background: var(--line-soft);
}

.stat {
  background: var(--paper-deep);
  padding: 10px 12px;
}

.stat-label {
  display: block;
  font-family: var(--font-label);
  font-weight: 600;
  font-size: 9px;
  letter-spacing: 0.2em;
  color: var(--ink-dim);
  margin-bottom: 4px;
}

.stat-value {
  display: block;
  font-size: 17px;
  font-weight: 600;
  color: var(--accent);
  white-space: nowrap;
}

.stat-value small { font-size: 11px; color: var(--ink-dim); font-weight: 400; }

/* ---------- drawing panel ---------- */

.views {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
  gap: 14px;
  align-items: end;
}

.view { min-width: 0; }

.svg-wrap svg { width: 100%; height: auto; display: block; }

.view figcaption {
  text-align: center;
  font-family: var(--font-label);
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.26em;
  color: var(--ink-dim);
  margin-top: 8px;
  border-top: 1px solid var(--line-soft);
  padding-top: 7px;
}

.legend {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 16px;
  font-family: var(--font-label);
  font-weight: 600;
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--ink-dim);
}

.lg::before {
  content: '';
  display: inline-block;
  width: 18px;
  height: 9px;
  margin-right: 7px;
  vertical-align: -1px;
  border: 1px solid currentColor;
}

.lg-vert::before  { background: var(--c-vert);  border-color: var(--c-vert); }
.lg-rung::before  { background: var(--c-rung);  border-color: var(--c-rung); }
.lg-plank::before { background: var(--c-plank); border-color: var(--c-plank); }
.lg-bin::before   { background: transparent; border: 1px dashed var(--ink-dim); }

/* ---------- schedules ---------- */

.sched-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12.5px;
}

.sched-table th {
  font-family: var(--font-label);
  font-weight: 600;
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--accent);
  text-align: left;
  border-bottom: 1px solid var(--line);
  padding: 6px 8px;
}

.sched-table td {
  border-bottom: 1px dashed var(--line-soft);
  padding: 7px 8px;
  color: var(--ink);
}

.sched-table td.num { font-weight: 600; white-space: nowrap; }
.sched-table .mark {
  display: inline-block;
  width: 20px;
  height: 12px;
  border: 1px solid currentColor;
}
.mark-v { background: var(--c-vert); color: var(--c-vert); }
.mark-r { background: var(--c-rung); color: var(--c-rung); }
.mark-p { background: var(--c-plank); color: var(--c-plank); }

/* rung layout */

.rung-layout {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
}

.rung-chip {
  border: 1px solid var(--line-soft);
  padding: 5px 10px;
  font-size: 12px;
  background: rgba(9, 32, 64, 0.6);
}

.rung-chip b { color: var(--c-rung); font-weight: 600; }

/* board purchase */

.buy-summary {
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
  margin-bottom: 14px;
  font-size: 13px;
}

.buy-summary b { color: var(--accent); font-size: 19px; font-weight: 600; }

.board-layout { display: flex; flex-direction: column; gap: 8px; }

.board-stock-label {
  font-family: var(--font-label);
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--accent);
  border-bottom: 1px solid var(--line-soft);
  padding-bottom: 4px;
  margin-top: 8px;
}

.board-stock-label:first-child { margin-top: 0; }

.board-row { display: flex; align-items: center; gap: 10px; }

.board-count {
  font-family: var(--font-label);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--accent);
  width: 44px;
  flex-shrink: 0;
  text-align: right;
}

.board-bar {
  flex: 1;
  display: flex;
  height: 26px;
  border: 1px solid var(--line);
  background: repeating-linear-gradient(45deg, transparent, transparent 4px, var(--line-soft) 4px, var(--line-soft) 6px);
}

.board-seg {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 600;
  color: var(--paper-deep);
  overflow: hidden;
  white-space: nowrap;
  border-right: 1px solid var(--paper-deep);
}

.seg-verticals { background: var(--c-vert); }
.seg-rungs     { background: var(--c-rung); }
.seg-planks    { background: var(--c-plank); }

/* notes & warnings */

.warn-list { list-style: none; margin-bottom: 14px; }

.warn-list li {
  border: 1px dashed var(--c-warn);
  color: var(--c-warn);
  background: rgba(255, 143, 125, 0.07);
  padding: 8px 12px;
  margin-bottom: 7px;
  font-size: 12px;
  letter-spacing: 0.03em;
}

.warn-list li.ok {
  border-color: var(--c-plank);
  color: var(--c-plank);
  background: rgba(125, 239, 168, 0.06);
}

.gen-notes {
  margin-left: 20px;
  font-size: 11.5px;
  color: var(--ink-dim);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

/* ---------- print-only assembly appendix ---------- */

.print-only { display: none; }

.asm-intro {
  font-size: 12px;
  color: var(--ink);
  margin-bottom: 14px;
  letter-spacing: 0.02em;
}

.asm-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
  margin-bottom: 8px;
}

.asm-block-title {
  font-family: var(--font-label);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--accent);
  border-bottom: 1px solid var(--line-soft);
  padding-bottom: 5px;
  margin-bottom: 9px;
}

.asm-block-title small { font-weight: 500; color: var(--ink-dim); letter-spacing: 0.08em; }

.asm-steps {
  margin-left: 20px;
  font-size: 11.5px;
  color: var(--ink);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.asm-table td { vertical-align: top; font-size: 11px; }

.asm-detail {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 24px;
  align-items: start;
  margin-bottom: 8px;
}

/* ---------- title block ---------- */

.title-block {
  margin-top: 26px;
  display: grid;
  grid-template-columns: auto 2fr 2fr 1fr 1fr 2fr;
  border: 2px solid var(--line);
  background: rgba(9, 32, 64, 0.6);
}

.tb-cell {
  padding: 10px 14px;
  border-left: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 3px;
  justify-content: center;
  min-width: 0;
}

.tb-cell:first-child { border-left: none; }

.tb-logo { align-items: center; justify-content: center; }

.tb-brand {
  font-family: var(--font-display);
  font-size: 17px;
  line-height: 1;
  color: var(--accent);
  text-align: center;
  letter-spacing: 0.06em;
}

.tb-label {
  font-family: var(--font-label);
  font-weight: 600;
  font-size: 8.5px;
  letter-spacing: 0.22em;
  color: var(--ink-dim);
}

.tb-value {
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.05em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ---------- svg drawing classes ---------- */

.dwg-vert  { fill: rgba(121, 199, 255, 0.30); stroke: var(--c-vert);  stroke-width: 1; }
.dwg-rung  { fill: rgba(255, 190, 92, 0.38);  stroke: var(--c-rung);  stroke-width: 1; }
.dwg-plank { fill: rgba(125, 239, 168, 0.32); stroke: var(--c-plank); stroke-width: 1; }
.dwg-bin   { fill: rgba(232, 241, 253, 0.03); stroke: var(--ink-dim); stroke-width: 1; stroke-dasharray: 5 4; }
.dwg-dim   { stroke: var(--accent); stroke-width: 1; fill: none; }
.dwg-dim-txt { fill: var(--accent); font-family: var(--font-mono); font-size: 11px; font-weight: 600; }
.dwg-note-txt { fill: var(--ink-dim); font-family: var(--font-mono); font-size: 9.5px; }
.dwg-floor { stroke: var(--line); stroke-width: 1.5; }
.dwg-hatch { stroke: var(--line-soft); stroke-width: 1; }

/* ---------- responsive ---------- */

@media (max-width: 1060px) {
  .drawing-area { grid-template-columns: 1fr; }
  .schedules { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  body { padding: 6px; }
  .sheet-frame { margin: 6px; padding: 12px 10px; }
  .views { grid-template-columns: 1fr; }
  .title-block { grid-template-columns: 1fr 1fr; }
  .tb-cell { border-top: 1px solid var(--line-soft); }
  .panel { padding: 14px 12px 16px; }
  .site-sub { letter-spacing: 0.12em; }
  .masthead-right { align-items: flex-start; }
  .summary-strip { grid-template-columns: repeat(2, 1fr); }
  .stat-value { font-size: 15px; white-space: normal; }
  .sched-table { display: block; overflow-x: auto; }
  .sched-table th { letter-spacing: 0.1em; padding: 5px 6px; }
  .sched-table td { padding: 5px 6px; font-size: 11.5px; }
  .field-label { letter-spacing: 0.14em; }
  .board-count { width: 32px; }
  .buy-summary { gap: 12px; }
}

/* ---------- print: white paper, blue ink ---------- */

@media print {
  :root {
    --paper: #ffffff;
    --paper-deep: #ffffff;
    --ink: #10315c;
    --ink-dim: #3d5e8a;
    --line: #10315c;
    --line-soft: #9db4d4;
    --accent: #10315c;
    --grid-minor: transparent;
    --grid-major: transparent;
    --c-vert: #1c5f9e;
    --c-rung: #a05e00;
    --c-plank: #1d6e44;
    --c-warn: #b3402c;
  }
  * {
    -webkit-print-color-adjust: exact !important;
    print-color-adjust: exact !important;
  }
  body { background: #fff; padding: 0; }
  .sheet { box-shadow: none; background: #fff; }
  .panel, .stat, .rung-chip, .title-block { background: #fff; }
  .print-btn { display: none; }
  .site-title { text-shadow: none; }
  .title-accent { -webkit-text-fill-color: var(--ink); -webkit-text-stroke: 0; }
  .board-bar {
    border: 1px solid var(--line);
    background: repeating-linear-gradient(45deg, #fff, #fff 3px, #7d97bd 3px, #7d97bd 5px);
  }
  .board-seg { color: #fff; border-right: 1px solid #fff; outline: 1px solid var(--line); }
  .panel, .schedules, .drawing-area { break-inside: avoid; }
  .print-only { display: block; break-before: page; }
  .asm-detail, .asm-cols { break-inside: avoid; }
  .dwg-vert  { fill: rgba(28, 95, 158, 0.30); }
  .dwg-rung  { fill: rgba(160, 94, 0, 0.40); }
  .dwg-plank { fill: rgba(29, 110, 68, 0.35); }
  .dwg-bin   { fill: none; }
}