:root {
  --bg: #ffffff;
  --surface: #f5f4ef;
  --border: #dddbd2;
  --text: #1f1e1b;
  --muted: #6b6a64;
  --accent: #185fa5;
  --danger: #a32d2d;
  --radius: 10px;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1c1c1a;
    --surface: #2a2a27;
    --border: #44443f;
    --text: #ecebe6;
    --muted: #a3a29b;
    --accent: #85b7eb;
    --danger: #f09595;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); line-height: 1.5; }
main { max-width: 1100px; margin: 0 auto; padding: 16px; }
a { color: var(--accent); }
h1 { font-size: 22px; font-weight: 600; margin: 4px 0; }
h2 { font-size: 17px; font-weight: 600; margin: 20px 0 8px; }
.sub { color: var(--muted); margin: 0 0 12px; font-size: 14px; }
.back { font-size: 14px; text-decoration: none; }

.home-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 12px; margin-top: 16px; }
.home-card { display: block; padding: 16px; border: 1px solid var(--border); border-radius: var(--radius); text-decoration: none; color: var(--text); background: var(--surface); }
.home-card:hover { border-color: var(--accent); }
.home-card b { display: block; font-size: 17px; margin-bottom: 4px; }
.home-card span { color: var(--muted); font-size: 14px; }

.params { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 10px 20px; margin: 12px 0; }
.param label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 4px; }
.param .ctl { display: flex; gap: 6px; align-items: center; }
.param input[type=number], .param select {
  flex: 1; min-width: 0; height: 40px; padding: 0 10px; font-size: 16px;
  border: 1px solid var(--border); border-radius: 8px; background: var(--bg); color: var(--text);
}
.param .step { width: 40px; height: 40px; font-size: 20px; line-height: 1; border: 1px solid var(--border); border-radius: 8px; background: var(--surface); color: var(--text); cursor: pointer; }
.param input[type=range] { width: 100%; margin: 6px 0 0; }
.param .unit { font-size: 13px; color: var(--muted); min-width: 22px; }

.actions { display: flex; flex-wrap: wrap; gap: 8px; margin: 8px 0 4px; }
.actions button { height: 38px; padding: 0 14px; border: 1px solid var(--border); border-radius: 8px; background: var(--surface); color: var(--text); font-size: 14px; cursor: pointer; }
.actions button:hover { border-color: var(--accent); }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 10px; margin: 14px 0; }
.card { background: var(--surface); border-radius: var(--radius); padding: 10px 12px; }
.card .l { font-size: 12px; color: var(--muted); }
.card .v { font-size: 22px; font-weight: 600; }
.card .n { font-size: 12px; color: var(--muted); }

.warn { color: var(--danger); font-size: 14px; margin: 6px 0; }
.drawing { margin: 10px 0; border: 1px solid var(--border); border-radius: var(--radius); padding: 8px 0; overflow: hidden; }
.drawing svg { display: block; width: 100%; height: auto; overflow: hidden; }
.winrow { display: flex; align-items: center; gap: 10px; padding: 0 12px 6px; font-size: 13px; color: var(--muted); }
.winrow input { flex: 1; }
.winrow b { color: var(--text); font-weight: 600; min-width: 90px; text-align: right; }
.legend { display: flex; flex-wrap: wrap; gap: 6px 16px; font-size: 12px; color: var(--muted); margin: 6px 0 10px; }
.legend i { display: inline-block; width: 14px; height: 10px; border-radius: 3px; vertical-align: -1px; margin-right: 4px; }
.section { font-size: 14px; line-height: 1.7; margin: 8px 0; color: var(--muted); }
.section b { color: var(--text); font-weight: 600; }
.section h3 { font-size: 14px; color: var(--text); margin: 0 0 2px; }

svg text { font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
.svg-muted { fill: var(--muted); }
.svg-line { stroke: var(--muted); }
.svg-strong { stroke: var(--text); }

.toast { position: fixed; left: 50%; bottom: 20px; transform: translateX(-50%); background: var(--text); color: var(--bg); padding: 8px 14px; border-radius: 8px; font-size: 14px; }

#print-area { display: none; }
@media print {
  :root { --bg: #fff; --surface: #f3f3f3; --text: #000; --muted: #444; --border: #bbb; }
  @page { size: A4 landscape; margin: 10mm; }
  main { max-width: none; padding: 0; }
  .no-print, .params, .actions, .winrow, .screen-only { display: none !important; }
  #print-area { display: block; }
  .drawing { break-inside: avoid; page-break-inside: avoid; }
  .cards { grid-template-columns: repeat(4, 1fr); }
  .print-params { font-size: 12px; color: #444; margin: 0 0 8px; }
}