/* Outil « Ce qu'on peut construire sur un terrain » — styles propres (ne modifie pas site.css). */
.cs-tool { max-width: 920px; }
.cs-tool [hidden] { display: none !important; }
.cs-formbox { gap: 1.4rem; }
.cs-intro { margin: 0; font-size: .92rem; }
.cs-fs { border: 1px solid var(--line) !important; border-radius: 14px; padding: 1rem 1.1rem 1.2rem !important; display: grid; gap: .9rem; min-width: 0; }
.cs-fs > legend { padding: 0 .4rem; font-size: 1rem; font-weight: 700; color: var(--text); }
.cs-field { display: grid; gap: .4rem; min-width: 0; align-content: start; }
.cs-field .hint { margin: 0; }
.cs-field > label { display: block; }
.cs-tool .form input[type=radio] { width: 18px; height: 18px; padding: 0; margin: 0; flex: none; accent-color: var(--green); }
.cs-tool .form .btn.ghost { border: 1px solid currentColor; background: transparent; color: var(--text); }
.cs-grid2, .cs-grid3 { display: grid; gap: .9rem 1rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 13rem), 1fr)); }
.cs-grid3 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 11rem), 1fr)); }
.cs-modes { display: flex; flex-wrap: wrap; gap: .5rem; }
.cs-modes .chk, .cs-chk { max-width: 100%; }
.cs-chk span { overflow-wrap: anywhere; }
.cs-req { color: var(--copper-ink); }
.cs-err { margin: 0; font-size: .85rem; font-weight: 600; color: #b3261e; }
.cs-err::before { content: "⚠ "; }
.cs-form [aria-invalid="true"] { border-color: #b3261e !important; border-width: 2px !important; }
:root[data-theme="dark"] .cs-err, :root[data-theme="dark"] .cs-errsum { color: #ffb4ab; }
:root[data-theme="dark"] .cs-form [aria-invalid="true"] { border-color: #ffb4ab !important; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .cs-err, :root:not([data-theme="light"]) .cs-errsum { color: #ffb4ab; }
  :root:not([data-theme="light"]) .cs-form [aria-invalid="true"] { border-color: #ffb4ab !important; }
}
.cs-errsum { margin: 0; font-weight: 650; color: #b3261e; border-inline-start: 3px solid currentColor; padding-inline-start: .8rem; }
.cs-preset { display: grid; gap: .8rem; grid-template-columns: minmax(0, 1fr) auto; align-items: end; }
@media (max-width: 640px) { .cs-preset { grid-template-columns: minmax(0, 1fr); } }
.cs-preset .btn { justify-self: start; }
.cs-preset-msg { margin: 0; font-size: .9rem; font-weight: 600; color: var(--g-text); }
.cs-preset-msg:empty { display: none; }
.cs-sides { display: grid; gap: .9rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 17rem), 1fr)); }
.cs-side { border: 1px dashed var(--line) !important; border-radius: 12px; padding: .7rem .8rem .9rem !important; display: grid; gap: .6rem; min-width: 0; }
.cs-side > legend { font-size: .9rem; padding: 0 .3rem; margin: 0; }
.cs-side .cs-grid2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 9rem), 1fr)); }
.cs-side input:disabled { opacity: .55; }
.cs-sub { display: grid; gap: .8rem; }
.cs-actions { display: flex; flex-wrap: wrap; gap: .8rem; align-items: center; }
.cs-actions .btn { cursor: pointer; font: inherit; font-weight: 650; }
.cs-tool .btn:focus-visible, .cs-tool button:focus-visible, .cs-tool a:focus-visible, .cs-tool summary:focus-visible, .cs-tool [tabindex]:focus-visible, .cs-tool input:focus-visible { outline: 3px solid var(--copper); outline-offset: 2px; }
.cs-chk input:focus-visible { outline-offset: 2px; }
.cs-form input[disabled] { cursor: not-allowed; }

/* Résultat */
.cs-out:empty { display: none; }
.cs-out { margin-top: 1.6rem; }
.cs-result { display: grid; gap: 1.2rem; grid-template-columns: minmax(0, 1fr); min-width: 0; }
.cs-result > *, .cs-card > *, .cs-kv > div { min-width: 0; }
.cs-h { margin: 0; font-size: 1.5rem; }
.cs-result h3 { margin: 0 0 .5rem; font-size: 1.05rem; }
.cs-result ul { margin: 0; padding-inline-start: 1.2rem; display: grid; gap: .35rem; }
.cs-card { background: var(--ink); color: #eeecff; border-radius: 14px; padding: 1.4rem 1.6rem; display: grid; gap: 1rem; }
.cs-kv { margin: 0; display: grid; gap: .9rem 1.4rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 15rem), 1fr)); }
.cs-kv dt { font-size: .8rem; color: rgba(236, 234, 255, .78); }
.cs-kv dd { margin: .15rem 0 0; font-family: var(--mono); font-size: 1.1rem; overflow-wrap: anywhere; }
.cs-kv dd.cs-big { font-size: 1.4rem; color: #fff; }
.cs-kv small { display: block; font-size: .72rem; color: rgba(236, 234, 255, .78); font-family: var(--sans); margin-top: .15rem; }
.cs-kv dd small.cs-sub-t { font-family: var(--mono); }
.cs-lim { color: #eeecff; font-size: .92rem; border-top: 1px solid rgba(236, 234, 255, .2); padding-top: .9rem !important; }
.cs-lim bdi { font-family: var(--mono); }
.cs-warn, .cs-info, .cs-proc, .cs-rules, .cs-check, .cs-help { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 1.1rem 1.3rem; }
.cs-warn { border-inline-start: 4px solid #b3261e; }
.cs-warn h3::before { content: "⚠ "; }
.cs-info { border-inline-start: 4px solid var(--n-text); }
.cs-proc { border-inline-start: 4px solid var(--g-text); }
.cs-rules ul { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: .4rem .9rem; font-size: .9rem; }
.cs-rules bdi { font-family: var(--mono); }
.cs-help { background: var(--sand); }
.cs-help p { margin: 0 0 .9rem; }
.cs-result .note { margin: 0; }

/* Schémas */
.cs-figs { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr)); }
.cs-figs figure { margin: 0; background: var(--paper); border: 1px solid var(--line); border-radius: 14px; padding: .9rem; min-width: 0; }
.cs-figs figcaption { font-weight: 700; font-size: .95rem; margin-bottom: .5rem; }
.cs-svg { direction: ltr; unicode-bidi: isolate; display: block; width: 100%; height: auto; max-height: 420px; }
.cs-svg .cs-t { font: 600 11px var(--mono); fill: var(--text); }
.cs-svg .cs-in { fill: var(--text); }
.cs-svg .cs-road { fill: var(--sand); stroke: var(--muted); stroke-width: 1; }
.cs-svg .cs-road-t { font-family: var(--sans); }
.cs-svg .cs-plot { fill: var(--surface); stroke: var(--text); stroke-width: 2; }
.cs-svg .cs-zone { stroke: var(--g-text); stroke-width: 1.5; stroke-dasharray: 6 4; }
.cs-svg .cs-hatch-l { stroke: var(--g-text); stroke-width: 1; opacity: .5; }
.cs-svg .cs-bld { fill: var(--copper); fill-opacity: .35; stroke: var(--copper-ink); stroke-width: 2; }
.cs-svg .cs-party { stroke: var(--n-text); stroke-width: 6; stroke-linecap: square; }
.cs-svg .cs-dim { stroke: var(--muted); stroke-width: 1; }
.cs-svg .cs-mk { fill: var(--muted); }
.cs-svg .cs-lvl { fill: var(--copper); fill-opacity: .3; stroke: var(--copper-ink); stroke-width: 1.5; }
.cs-svg .cs-lvl-x { fill: none; stroke-dasharray: 5 4; }
.cs-svg .cs-top { fill: var(--muted); fill-opacity: .25; stroke: var(--muted); stroke-width: 1; }
.cs-svg .cs-base { fill: var(--muted); fill-opacity: .18; stroke: var(--muted); stroke-width: 1.2; stroke-dasharray: 3 3; }
.cs-svg .cs-ground { stroke: var(--text); stroke-width: 2; }
.cs-svg .cs-hmax { stroke: #b3261e; stroke-width: 1.5; stroke-dasharray: 8 5; }
:root[data-theme="dark"] .cs-svg .cs-hmax { stroke: #ffb4ab; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .cs-svg .cs-hmax { stroke: #ffb4ab; } }
.cs-legend { list-style: none; padding: 0 !important; margin: .6rem 0 0 !important; font-size: .82rem; display: grid; gap: .3rem; }
.cs-legend li { display: flex; gap: .5rem; align-items: center; }
.sw { flex: none; width: 1.4rem; height: .9rem; border-radius: 3px; border: 1.5px solid var(--text); }
.sw-plot { background: var(--surface); }
.sw-zone { border: 1.5px dashed var(--g-text); background: repeating-linear-gradient(45deg, transparent 0 3px, var(--g-text) 3px 4px); }
.sw-bld, .sw-lvl { background: rgba(200, 123, 66, .35); border-color: var(--copper-ink); }
.sw-lvlx { border: 1.5px dashed var(--copper-ink); }
.sw-party { background: var(--n-text); border-color: var(--n-text); height: .4rem; }
.sw-hmax { border: 0; border-top: 2px dashed #b3261e; border-radius: 0; height: 0; }
.sw-base { border: 1.5px dashed var(--muted); background: rgba(91, 94, 117, .18); }

/* Tableau des variantes */
.cs-var summary { cursor: pointer; font-weight: 650; }
.cs-tablewrap { overflow-x: auto; margin-top: .7rem; max-width: 100%; }
.cs-var table { border-collapse: collapse; width: 100%; font-size: .9rem; min-width: 30rem; }
.cs-var th, .cs-var td { padding: .5rem .6rem; border-bottom: 1px solid var(--line); text-align: start; white-space: nowrap; }
.cs-var td { font-family: var(--mono); }
.cs-var thead th { font-size: .8rem; color: var(--muted); }
.cs-best { background: var(--sand); font-weight: 700; }
.cs-tag { font: 700 .72rem var(--sans); border: 1px solid currentColor; border-radius: 999px; padding: .05rem .45rem; margin-inline-start: .3rem; }
@media (max-width: 560px) {
  .cs-var table { min-width: 0; }
  .cs-var thead { display: none; }
  .cs-var tr { display: grid; grid-template-columns: 1fr 1fr; gap: .2rem .8rem; padding: .6rem 0; border-bottom: 1px solid var(--line); }
  .cs-var th, .cs-var td { border: 0; padding: .1rem 0; white-space: normal; }
  .cs-var th[scope=row] { grid-column: 1 / -1; }
  .cs-var td::before { content: attr(data-h); display: block; font: 600 .75rem var(--sans); color: var(--muted); }
}
.cs-print-only { display: none; }

@media (prefers-reduced-motion: reduce) { .cs-tool * { transition: none !important; animation: none !important; } }
.a11y-rm .cs-tool * { transition: none !important; animation: none !important; }

/* Impression : seulement le résultat */
@media print {
  body:has(.cs-tool) .top, body:has(.cs-tool) .foot, body:has(.cs-tool) .page-head, body:has(.cs-tool) .skip, body:has(.cs-tool) main > *:not(.cs-sec), body:has(.cs-tool) .a11y { display: none !important; }
  .cs-form, .cs-help .cs-actions, .cs-var summary { display: none !important; }
  .cs-sec { padding: 0 !important; }
  .cs-out { margin: 0; }
  .cs-print-only { display: block; font-weight: 700; margin: 0; }
  .cs-var:not([open]) > *:not(summary) { display: block !important; }
  .cs-card { background: #fff !important; color: #000 !important; border: 1px solid #000; }
  .cs-kv dt, .cs-kv small, .cs-lim, .cs-kv dd.cs-big { color: #000 !important; }
  .cs-figs figure, .cs-warn, .cs-info, .cs-proc, .cs-rules, .cs-check, .cs-help { break-inside: avoid; background: #fff !important; }
  .cs-tablewrap { overflow: visible; }
  .cs-result a { color: #000; }
}