:root {
  --bg: #f4f5f7; --panel: #fff; --ink: #1d2733; --muted: #6b7785; --line: #dde1e6;
  --accent: #2563eb; --accent-ink: #fff; --err: #c62828; --err-bg: #fdecec; --warn: #a15c00; --warn-bg: #fff4e0; --ok: #1b7f3b;
  --sel: rgba(37, 99, 235, .16);
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #14181d; --panel: #1d232b; --ink: #e6e9ed; --muted: #93a0ae; --line: #2f3843; --accent: #4c8dff; --err: #ff6b6b; --err-bg: #3a1f22; --warn: #ffb454; --warn-bg: #3a2c14; --ok: #5fd08a; --sel: rgba(76, 141, 255, .22); }
}
* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body { background: var(--bg); color: var(--ink); font: 14px/1.4 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
.hidden { display: none !important; }
.muted { color: var(--muted); } .hint { font-size: 12px; margin-left: auto; }
.err { color: var(--err); min-height: 1.2em; }
button, select, input { font: inherit; color: inherit; }
button { background: var(--panel); border: 1px solid var(--line); border-radius: 6px; padding: 5px 10px; cursor: pointer; }
button:hover { border-color: var(--accent); }
button.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
button.primary:disabled { opacity: .45; cursor: not-allowed; }
button.small { padding: 2px 7px; font-size: 12px; }
button.danger { color: var(--err); }
button.on { background: var(--sel); border-color: var(--accent); }
input, select { background: var(--panel); border: 1px solid var(--line); border-radius: 5px; padding: 4px 6px; min-width: 0; }
input[type=checkbox] { padding: 0; }
input[type=number] { width: 78px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 12px; }
.overlay { position: fixed; inset: 0; background: rgba(10, 15, 20, .55); display: flex; align-items: center; justify-content: center; z-index: 10; padding: 16px; }
.login { width: 320px; display: grid; gap: 10px; } .login label { display: grid; gap: 4px; } .login h1 { margin: 0 0 4px; font-size: 20px; }

#app { height: 100vh; display: grid; grid-template-columns: 250px minmax(0, 1fr) 360px; grid-template-rows: auto minmax(0, 1fr); }
header { grid-column: 1 / -1; display: flex; gap: 8px; align-items: center; padding: 8px 12px; background: var(--panel); border-bottom: 1px solid var(--line); }
header .brand { font-weight: 700; margin-right: 8px; } header #projSel { max-width: 260px; } .spacer { flex: 1; }
aside { overflow: auto; padding: 10px; }
#left { border-right: 1px solid var(--line); background: var(--panel); }
#right { border-left: 1px solid var(--line); background: var(--panel); }
.sect-h { display: flex; align-items: center; justify-content: space-between; font-weight: 600; margin: 4px 0 8px; }
.wcard { border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; margin-bottom: 8px; cursor: pointer; }
.wcard.sel { border-color: var(--accent); background: var(--sel); }
.wcard .t { font-weight: 600; display: flex; justify-content: space-between; gap: 6px; } .wcard .m { font-size: 12px; color: var(--muted); }
.wcard .row { display: flex; gap: 4px; margin-top: 6px; }
.badge { font-size: 11px; border-radius: 10px; padding: 1px 7px; background: var(--err-bg); color: var(--err); }
.badge.ok { background: transparent; color: var(--ok); }

#center { display: grid; grid-template-rows: minmax(0, 1fr) auto; gap: 8px; padding: 8px; min-width: 0; min-height: 0; }
#editors { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 8px; min-height: 0; }
.pane { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; display: flex; flex-direction: column; min-height: 0; min-width: 0; }
.pane-h { display: flex; align-items: center; gap: 10px; padding: 6px 10px; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.chk { display: inline-flex; align-items: center; gap: 4px; font-size: 13px; }
#svgWrap, #threeWrap { flex: 1; min-height: 0; position: relative; overflow: hidden; }
#svgWrap svg { position: absolute; inset: 0; width: 100%; height: 100%; touch-action: none; user-select: none; }
#threeWrap canvas { position: absolute; inset: 0; width: 100% !important; height: 100% !important; }
#sums { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 8px; max-height: 42vh; }
#sums .card { overflow: auto; }
.cell { fill: transparent; cursor: pointer; } .cell:hover { fill: var(--sel); }
.cell.bad { fill: rgba(198, 40, 40, .18); }
.board { cursor: grab; } .board.drag { cursor: grabbing; }
.dim { font-family: system-ui, sans-serif; fill: var(--muted); }

h3 { margin: 14px 0 6px; font-size: 13px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }
h3:first-child { margin-top: 0; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 6px 10px; }
.fld { display: grid; gap: 2px; font-size: 12px; color: var(--muted); } .fld input, .fld select { color: var(--ink); font-size: 14px; width: 100%; }
.frow { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; margin: 4px 0; }
.issue { padding: 5px 8px; border-radius: 6px; margin: 4px 0; font-size: 13px; cursor: pointer; }
.issue.error { background: var(--err-bg); color: var(--err); } .issue.warn { background: var(--warn-bg); color: var(--warn); }
.okbox { padding: 6px 8px; border-radius: 6px; color: var(--ok); background: rgba(27, 127, 59, .1); margin-bottom: 8px; }
table.t { border-collapse: collapse; width: 100%; font-size: 12.5px; }
table.t th { text-align: left; color: var(--muted); font-weight: 500; border-bottom: 1px solid var(--line); padding: 3px 4px; }
table.t td { padding: 3px 4px; border-bottom: 1px solid var(--line); vertical-align: top; } table.t td.n, table.t th.n { text-align: right; white-space: nowrap; }
table.t tr.tot td { font-weight: 700; border-top: 2px solid var(--line); }
.big { font-size: 20px; font-weight: 700; }
.bandtbl { display: grid; grid-template-columns: 1.4fr repeat(4, auto) auto; gap: 4px 8px; align-items: center; font-size: 12px; }
.bandtbl .hd { color: var(--muted); }
.matfilter { margin-bottom: 4px; }
.modal { width: min(1100px, 100%); max-height: 92vh; overflow: auto; }
.modal h2 { margin: 0 0 8px; }
.modal textarea { width: 100%; height: 55vh; font: 13px/1.4 ui-monospace, Menlo, Consolas, monospace; background: var(--panel); color: var(--ink); border: 1px solid var(--line); border-radius: 6px; padding: 8px; }
.swatch { width: 22px; height: 22px; border-radius: 4px; border: 1px solid var(--line); display: inline-block; vertical-align: middle; }
.pricetbl input { width: 100%; } .pricetbl input[type=number] { width: 80px; } .pricetbl input[type=color] { width: 36px; padding: 0; height: 24px; }
.pricetbl td { vertical-align: middle; }

@media (max-width: 1150px) {
  #app { grid-template-columns: 200px minmax(0, 1fr); grid-template-rows: auto auto auto; height: auto; }
  #right { grid-column: 1 / -1; border-left: 0; border-top: 1px solid var(--line); }
  #editors { grid-template-columns: 1fr; } .pane { height: 70vh; }
}
@media (max-width: 760px) { #app { grid-template-columns: 1fr; } #left { border-right: 0; } #sums { grid-template-columns: 1fr; max-height: none; } header { flex-wrap: wrap; } }