/* XPipe Pro — the web isometric editor. The site's own tokens (styles.css),
   repeated here so the editor stands on its own, and the app's drawing
   convention: the pipe in the ink colour, dimensions in red, elevations in
   cyan, the point the next run leaves from in green. */
:root {
  --bg: #070b12; --bg-elevated: #0e1726; --card: #141c28; --card-raised: #1a2534;
  --border: #243246; --border-strong: #36495f;
  --green: #76c043; --green-bright: #8fd44f; --orange: #ff9800; --cyan: #38bdf8;
  --violet: #a78bfa; --danger: #ff5a6a; --text: #ffffff; --muted: #8e9caa; --faint: #63768d;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --sheet: #0a111c; --grid: rgba(54, 73, 95, 0.32); --ink: #e9eef4;
  color-scheme: dark;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; height: 100%; background: var(--bg); color: var(--text); font-family: var(--sans);
  -webkit-font-smoothing: antialiased; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
svg { stroke-linecap: round; stroke-linejoin: round; }

.app { display: flex; flex-direction: column; height: 100vh; height: 100dvh; }

/* ─── Top bar ─────────────────────────────────────────────────────────── */
.bar { display: flex; align-items: center; gap: 10px; padding: 8px 14px; border-bottom: 1px solid var(--border);
  background: var(--bg-elevated); min-height: 56px; }
.brand { display: flex; align-items: center; gap: 9px; color: var(--text); text-decoration: none; font-weight: 800; }
.brand img { border-radius: 8px; }
.doc { display: flex; align-items: center; gap: 8px; max-width: 32vw; background: var(--card); border: 1px solid var(--border);
  border-radius: 10px; padding: 7px 11px; font-weight: 700; font-size: 14px; }
.doc svg { width: 10px; height: 6px; fill: none; stroke: var(--muted); stroke-width: 1.6; flex: none; }
.doc-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.spacer { flex: 1; }
.bar-group { display: flex; gap: 4px; }
.icon { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 10px; background: var(--card);
  border: 1px solid var(--border); padding: 0; }
.icon svg { width: 19px; height: 19px; fill: none; stroke: var(--text); stroke-width: 1.9; }
.icon svg .dot { fill: var(--text); }
.icon:disabled svg { stroke: var(--faint); }
.icon:disabled { cursor: default; }
.icon:not(:disabled):hover, .doc:hover { border-color: var(--border-strong); }
.units { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 3px; }
.units button { border: 0; background: transparent; border-radius: 7px; padding: 5px 10px; font-size: 13px; font-weight: 700;
  color: var(--muted); }
.units button.on { background: var(--green); color: #08110a; }
.lang { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 8px 8px; font-size: 13px; }
.primary { display: flex; align-items: center; gap: 7px; background: var(--green); color: #08110a; border: 0;
  border-radius: 10px; padding: 9px 14px; font-weight: 800; font-size: 14px; }
.primary svg { width: 17px; height: 17px; fill: none; stroke: currentColor; stroke-width: 2.2; }
.primary:hover { background: var(--green-bright); }
.share-wrap { position: relative; }
.menu { position: absolute; right: 0; top: calc(100% + 6px); z-index: 30; width: 300px; background: var(--card-raised);
  border: 1px solid var(--border-strong); border-radius: 14px; padding: 6px; box-shadow: 0 18px 48px rgba(0,0,0,.5); }
.menu button, .menu a { display: block; width: 100%; text-align: start; background: transparent; border: 0; border-radius: 9px;
  padding: 9px 11px; color: var(--text); text-decoration: none; font-size: 14px; }
.menu button:hover, .menu a:hover { background: rgba(255,255,255,.06); }
.menu b { font-weight: 700; display: block; }
.menu small { display: block; color: var(--muted); font-size: 12px; margin-top: 2px; line-height: 1.35; }
.menu-head { font-size: 11px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; color: var(--faint);
  padding: 10px 11px 4px; border-top: 1px solid var(--border); margin-top: 4px; }

/* ─── Work area ───────────────────────────────────────────────────────── */
.work { flex: 1; display: flex; min-height: 0; }
.sheet { position: relative; flex: 1; min-width: 0; background: var(--sheet); overflow: hidden; touch-action: none; }
.canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; user-select: none; -webkit-user-select: none; }
.float { position: absolute; top: 12px; right: 12px; display: flex; gap: 6px; flex-wrap: wrap; justify-content: flex-end;
  max-width: calc(100% - 90px); }
.chip-toggle { background: rgba(14, 23, 38, .92); border: 1px solid var(--border); border-radius: 999px; padding: 8px 12px;
  font-size: 12.5px; font-weight: 800; color: var(--muted); }
.chip-toggle.on { color: var(--cyan); border-color: rgba(56,189,248,.5); }
#diag.on { color: var(--orange); border-color: rgba(255,152,0,.5); }
.float .icon { background: rgba(14, 23, 38, .92); }
.toast { position: absolute; left: 50%; bottom: 18px; transform: translateX(-50%); background: var(--card-raised);
  border: 1px solid var(--border-strong); border-radius: 12px; padding: 10px 16px; font-size: 14px; font-weight: 600;
  max-width: 90%; text-align: center; box-shadow: 0 10px 30px rgba(0,0,0,.45); }
.toast.warn { border-color: rgba(255,90,106,.6); }

/* Drawing ink */
.c-grid { stroke: var(--grid); stroke-width: 0.6; }
.c-pipe { stroke: var(--ink); stroke-width: 3; fill: none; }
.c-pipe-hit { stroke: transparent; stroke-width: 16; fill: none; }
.c-sel { stroke: var(--cyan); stroke-width: 9; stroke-opacity: .35; fill: none; }
.c-sym { stroke: var(--ink); stroke-width: 1.6; fill: none; }
.c-sym-fill { fill: var(--ink); stroke: var(--ink); stroke-width: 1.2; }
.c-sym-bg { fill: var(--sheet); stroke: var(--ink); stroke-width: 1.6; }
.c-dim { stroke: var(--danger); stroke-width: 1; fill: none; }
.c-dim-t { fill: var(--danger); font: 700 12px var(--mono); }
.c-el { fill: var(--cyan); font: 700 11px var(--mono); }
.c-size { fill: var(--cyan); font: 700 11px var(--mono); }
.c-tag { fill: var(--ink); font: 700 11px var(--mono); }
.c-match { stroke: var(--violet, #8b5cf6); stroke-width: 1.6; stroke-dasharray: 9 3 1.5 3; fill: none; }
.c-spool { fill: var(--bg, #0b1220); stroke: var(--violet, #8b5cf6); stroke-width: 1.2; }
.c-spool-t { fill: var(--violet, #8b5cf6); font: 800 11px var(--mono); }
.series { display: grid; gap: 6px; }
.series button { display: flex; justify-content: space-between; gap: 10px; padding: 8px 10px; border-radius: 9px;
  border: 1px solid var(--border, rgba(255,255,255,.14)); background: transparent; color: inherit; font: inherit; cursor: pointer; text-align: start; }
.series button.on { border-color: var(--cyan, #06b6d4); background: color-mix(in srgb, var(--cyan, #06b6d4) 14%, transparent); }
.series button:disabled { opacity: .45; cursor: default; }
.series b { font-family: var(--mono); }
.hint.warn { color: var(--orange, #f59e0b); }
.c-lead { stroke: var(--muted); stroke-width: 0.9; }
.c-ball { fill: var(--sheet); stroke: var(--ink); stroke-width: 1.1; }
.c-ball-t { fill: var(--ink); font: 700 10.5px var(--sans); }
.c-cursor { fill: none; stroke: var(--green); stroke-width: 2.5; }
.c-cursor-dot { fill: var(--green); }
.c-point { fill: var(--muted); }
.c-psel { fill: none; stroke: var(--cyan); stroke-width: 2.4; }
.c-preview { stroke: var(--green); stroke-width: 3; stroke-dasharray: 7 6; fill: none; }
.c-preview.bad { stroke: var(--danger); }
.c-preview-t { fill: var(--green); font: 800 13px var(--mono); paint-order: stroke; stroke: var(--sheet); stroke-width: 4px; }
.c-preview-t.bad { fill: var(--danger); }
.c-north { stroke: var(--text); stroke-width: 1.6; fill: none; }
.c-north-t { fill: var(--text); font: 800 13px var(--sans); }
.c-flow { fill: var(--ink); }
.c-spot { fill: none; stroke: var(--green); stroke-width: 2; stroke-dasharray: 3 3; }
.c-empty { fill: var(--muted); font: 600 14px var(--sans); }

/* ─── Side panel ──────────────────────────────────────────────────────── */
.side { width: 380px; flex: none; border-inline-start: 1px solid var(--border); background: var(--bg-elevated);
  display: flex; flex-direction: column; min-height: 0; }
.tabs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; padding: 10px; border-bottom: 1px solid var(--border); }
.tabs button { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 9px 4px;
  font-size: 13px; font-weight: 800; color: var(--muted); }
.tabs button.on { background: var(--cyan); color: #04121c; border-color: var(--cyan); }
.panel { flex: 1; overflow-y: auto; overflow-x: hidden; padding: 12px 12px 40px; display: flex; flex-direction: column; gap: 12px; }

.card { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 12px; display: flex;
  flex-direction: column; gap: 9px; }
.card.sel { border-color: rgba(56,189,248,.55); }
.label { font-size: 11px; font-weight: 800; letter-spacing: .07em; text-transform: uppercase; color: var(--green); }
.label.cyan { color: var(--cyan); } .label.orange { color: var(--orange); } .label.violet { color: var(--violet); }
.row { display: flex; align-items: center; gap: 8px; }
.row > .grow { flex: 1; }
.between { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.muted { color: var(--muted); font-size: 12.5px; }
.hint { color: var(--faint); font-size: 11.5px; line-height: 1.45; }
.mono { font-family: var(--mono); }
.field { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.field > span { font-size: 11px; font-weight: 800; letter-spacing: .05em; text-transform: uppercase; color: var(--muted);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.field > span.input { overflow: visible; text-transform: none; letter-spacing: 0; }
.input { display: flex; align-items: center; min-width: 0; background: var(--bg); border: 1px solid var(--border); border-radius: 10px;
  padding: 0 10px; }
.input:focus-within { border-color: var(--cyan); }
.input input, .input select { flex: 1; min-width: 0; background: transparent; border: 0; outline: 0; padding: 9px 0;
  font-family: var(--mono); font-size: 15px; font-weight: 700; }
.input select { font-family: var(--sans); font-size: 14px; }
.input select option { background: var(--card); }
.input .unit { color: var(--faint); font-size: 12px; font-family: var(--mono); }
.text-input { background: var(--bg); border: 1px solid var(--border); border-radius: 10px; padding: 9px 10px; font-size: 14px; width: 100%; }
.text-input:focus { outline: 0; border-color: var(--cyan); }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chips button { background: var(--bg); border: 1px solid var(--border); border-radius: 8px; padding: 6px 9px;
  font: 700 12.5px var(--mono); color: var(--muted); }
.chips button.on { background: var(--green); border-color: var(--green); color: #08110a; }
.pad { display: grid; grid-template-columns: repeat(3, 1fr); gap: 7px; }
.pad button { display: flex; flex-direction: column; align-items: center; gap: 2px; padding: 9px 4px; border-radius: 11px;
  border: 1px solid rgba(118,192,67,.4); background: rgba(118,192,67,.08); color: var(--green); font-weight: 800; font-size: 13px; }
.pad button.vert { border-color: rgba(56,189,248,.45); background: rgba(56,189,248,.08); color: var(--cyan); }
.pad button b { font-size: 20px; line-height: 1; }
.pad button:disabled { opacity: .3; cursor: default; }
.btn { background: var(--bg); border: 1px solid var(--border); border-radius: 10px; padding: 9px 12px; font-weight: 700;
  font-size: 13.5px; text-align: center; }
.btn:hover { border-color: var(--border-strong); }
.btn.go { background: var(--green); border-color: var(--green); color: #08110a; }
.btn.cyan { border-color: rgba(56,189,248,.5); color: var(--cyan); background: rgba(56,189,248,.08); }
.btn.orange { border-color: rgba(255,152,0,.5); color: var(--orange); background: rgba(255,152,0,.08); }
.btn.violet { border-color: rgba(167,139,250,.5); color: var(--violet); background: rgba(167,139,250,.08); }
.btn.danger { border-color: rgba(255,90,106,.5); color: var(--danger); background: rgba(255,90,106,.07); }
.btn:disabled { opacity: .4; cursor: default; }
.fold { display: flex; align-items: center; justify-content: space-between; width: 100%; background: rgba(255,152,0,.09);
  border: 0; border-radius: 11px; padding: 11px 12px; color: var(--orange); font-weight: 800; font-size: 13px; }
.fold.cyan { background: rgba(56,189,248,.09); color: var(--cyan); }
.fold::after { content: '▾'; }
.fold.open::after { content: '▴'; }
.grid2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.grid3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 6px; }
.grid3 .input { padding: 0 7px; }
.grid3 .input input { font-size: 13.5px; }
.seg { display: flex; background: var(--bg); border: 1px solid var(--border); border-radius: 10px; padding: 3px; gap: 3px; }
.seg button { flex: 1; border: 0; background: transparent; border-radius: 7px; padding: 7px 6px; font-size: 12.5px;
  font-weight: 700; color: var(--muted); }
.seg button.on { background: var(--card-raised); color: var(--text); }
.check { display: flex; align-items: center; gap: 9px; font-size: 13.5px; font-weight: 600; }
.check input { width: 18px; height: 18px; accent-color: var(--green); }

table.list { width: 100%; border-collapse: collapse; font-size: 12.5px; }
table.list th { text-align: start; color: var(--faint); font-weight: 700; font-size: 11px; padding: 4px 4px 6px;
  border-bottom: 1px solid var(--border); }
table.list td { padding: 6px 4px; border-bottom: 1px solid rgba(36,50,70,.6); vertical-align: top; }
table.list td.num { text-align: end; font-family: var(--mono); font-weight: 700; white-space: nowrap; }
table.list td.pos { color: var(--cyan); font-family: var(--mono); font-weight: 800; width: 24px; }
table.list .warn { color: var(--orange); }
.stat { display: flex; justify-content: space-between; font-size: 13px; }
.stat b { font-family: var(--mono); }

/* ─── Modal ───────────────────────────────────────────────────────────── */
.modal { position: fixed; inset: 0; z-index: 50; background: rgba(3,6,10,.66); display: grid; place-items: center; padding: 16px; }
.modal-card { width: min(560px, 100%); max-height: 86vh; overflow-y: auto; background: var(--card-raised);
  border: 1px solid var(--border-strong); border-radius: 18px; padding: 20px; box-shadow: 0 30px 80px rgba(0,0,0,.6); }
.modal-card h2 { margin: 0 0 12px; font-size: 19px; }
.modal-card p { color: var(--muted); line-height: 1.5; font-size: 14px; margin: 0 0 10px; }
.modal-card h3 { font-size: 15px; margin: 14px 0 4px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 16px; flex-wrap: wrap; }
.doc-list { display: flex; flex-direction: column; gap: 6px; }
.doc-item { display: flex; align-items: center; gap: 8px; background: var(--card); border: 1px solid var(--border);
  border-radius: 11px; padding: 8px 10px; }
.doc-item.on { border-color: var(--green); }
.doc-item .grow { flex: 1; min-width: 0; }
.doc-item b { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.doc-item small { color: var(--faint); font-size: 12px; }
.doc-item button { padding: 6px 10px; font-size: 12.5px; }

.print { display: none; }

/* ─── Narrow screens: the panel goes underneath ───────────────────────── */
@media (max-width: 900px) {
  .work { flex-direction: column; }
  .side { width: auto; height: 46vh; border-inline-start: 0; border-top: 1px solid var(--border); }
  .brand-name { display: none; }
  .lang { width: 64px; padding: 8px 4px; }
  .doc { max-width: 38vw; }
  .bar { gap: 6px; padding: 8px; }
  .primary span { display: none; }
  .primary { padding: 9px 11px; }
  .float { top: 8px; right: 8px; gap: 5px; }
  .chip-toggle { padding: 6px 9px; font-size: 11.5px; }
}
@media (max-width: 520px) {
  .units { display: none; }
}

[dir="rtl"] .menu { right: auto; left: 0; }
[dir="rtl"] .float { right: auto; left: 12px; }

/* ─── Printed sheet: black on white, the drawing, the lists, the title block ── */
@media print {
  html, body { background: #fff; height: auto; }
  .app, .modal { display: none !important; }
  .print { display: block; color: #000; font-family: var(--sans); }
  .p-page { display: grid; grid-template-columns: 1fr 34%; grid-template-rows: 1fr auto; gap: 0;
    border: 1.2pt solid #000; height: calc(100vh - 2px); page-break-after: avoid; }
  .p-page + .p-page { break-before: page; }
  .p-ink .c-match { stroke: #000; }
  .p-ink .c-spool { fill: #fff; stroke: #000; }
  .p-ink .c-spool-t { fill: #000; }
  .p-draw { border-inline-end: 0.8pt solid #000; position: relative; overflow: hidden; }
  .p-draw svg { width: 100%; height: 100%; display: block; }
  .p-lists { padding: 3mm; font-size: 7.6pt; overflow: hidden; }
  .p-lists h4 { margin: 0 0 1.5mm; font-size: 8pt; text-transform: uppercase; letter-spacing: .04em; }
  .p-lists table { width: 100%; border-collapse: collapse; margin-bottom: 3mm; }
  .p-lists th, .p-lists td { border: 0.5pt solid #000; padding: 0.7mm 1mm; text-align: start; vertical-align: top; }
  .p-lists td.num { text-align: end; font-family: var(--mono); white-space: nowrap; }
  .p-title { grid-column: 1 / -1; border-top: 1.2pt solid #000; display: grid; grid-template-columns: 1.3fr repeat(6, 1fr); }
  .p-title div { border-inline-end: 0.5pt solid #000; border-bottom: 0.5pt solid #000; padding: 1mm 1.5mm; min-height: 8.5mm; }
  .p-title small { display: block; font-size: 5.8pt; text-transform: uppercase; letter-spacing: .04em; color: #333; }
  .p-title b { font-size: 9pt; }
  .p-title .p-brand { grid-row: span 2; display: flex; flex-direction: column; justify-content: center; }
  .p-ink .c-grid { display: none; }
  .p-ink .c-pipe { stroke: #000; stroke-width: 2.2; }
  .p-ink .c-sym { stroke: #000; stroke-width: 1.1; }
  .p-ink .c-sym-fill { fill: #000; stroke: #000; }
  .p-ink .c-sym-bg { fill: #fff; stroke: #000; stroke-width: 1.1; }
  .p-ink .c-dim { stroke: #000; stroke-width: 0.6; }
  .p-ink .c-dim-t, .p-ink .c-el, .p-ink .c-size, .p-ink .c-tag, .p-ink .c-ball-t, .p-ink .c-north-t { fill: #000; }
  .p-ink .c-ball { fill: #fff; stroke: #000; }
  .p-ink .c-lead, .p-ink .c-north { stroke: #000; }
  .p-ink .c-flow { fill: #000; }
}