/* Calculateur de trémie d'escalier (inc/calcul-tremie.php, assets/js/calcul-tremie.js).
   Planche à dessin : fond quadrillé, cotes techniques, chiffre clé sur post-it, trémie en orange. */
.calc-tremie { --ct-fond: var(--c-blanc); --ct-trait: var(--c-trait-clair); --ct-tremie: var(--c-orange); --ct-encre: var(--c-crayon);
  position: relative; margin: 28px 0 40px; padding: clamp(18px, 3.2vw, 30px); border: 1px solid var(--ct-trait); border-radius: 16px; color: var(--c-texte);
  background: linear-gradient(var(--c-sauge-clair) 1px, transparent 1px) 0 0 / 24px 24px, linear-gradient(90deg, var(--c-sauge-clair) 1px, transparent 1px) 0 0 / 24px 24px, var(--ct-fond); }
.calc-tremie *, .calc-tremie *::before { box-sizing: border-box; }
.calc-tremie p, .calc-tremie li { text-align: left; hyphens: manual; }
.ct-entete .outil__etiquette { margin: 0 0 6px; }
.ct-titre { margin: 0 0 6px; font: 750 clamp(22px, 3.2vw, 30px)/1.15 var(--f-titre); }
.ct-intro { margin: 0 0 20px; font-size: 15px; color: var(--c-gris); }

/* Saisies */
.ct-form { display: grid; gap: 18px; }
.ct-groupe { margin: 0; padding: 0; border: 0; min-width: 0; }
.ct-groupe legend, .ct-champ label { display: block; margin: 0 0 8px; padding: 0; font: 600 12px/1.4 var(--f-tech); letter-spacing: .08em; text-transform: uppercase; color: var(--c-gris-sombre); }
.ct-pastilles { display: flex; flex-wrap: wrap; gap: 8px; }
.ct-pastille { position: relative; cursor: pointer; }
.ct-pastille input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
/* Même état « choisi » que le simulateur et les tests : bordure et voile orange, texte inchangé */
.ct-pastille span { display: inline-flex; align-items: center; gap: 10px; min-height: 44px; padding: 9px 16px 9px 12px; border: 1px solid var(--c-trait-sombre); border-radius: 12px; background: var(--c-nuit-3); font-size: 14px; font-weight: 600; line-height: 1.25; transition: background-color .2s, border-color .2s, color .2s, transform .15s; }
.ct-pastille span::before { content: ""; flex: none; width: 16px; height: 16px; border-radius: 50%; border: 1.5px solid rgba(30, 36, 36, .3); transition: all .2s; }
.ct-pastille:hover span { border-color: rgba(30, 36, 36, .28); }
.ct-pastille input:checked + span { border-color: var(--c-orange); background: color-mix(in srgb, var(--c-orange) 13%, transparent); }
.ct-pastille input:checked + span::before { border-color: var(--c-orange); background: radial-gradient(circle, var(--c-orange) 0 4px, transparent 4.5px); }
.ct-pastille input:focus-visible + span { outline: 2px solid var(--c-orange); outline-offset: 2px; }
.ct-groupe--types .ct-pastilles { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); }
.ct-groupe--types .ct-pastille { display: flex; }
.ct-groupe--types .ct-pastille span { flex: 1; flex-direction: column; justify-content: center; gap: 6px; padding: 14px 8px 12px; text-align: center; font-size: 13px; }
.ct-groupe--types .ct-pastille span::before { display: none; }
.ct-pastille svg { width: 40px; height: 40px; fill: none; stroke: var(--c-gris-sombre); stroke-width: 1.6; stroke-linejoin: round; stroke-linecap: round; transition: stroke .2s; }
.ct-groupe--types .ct-pastille input:checked + span svg { stroke: var(--c-orange); }
.ct-groupe--types .ct-pastille input:checked + span { transform: translateY(-2px); box-shadow: 0 10px 22px -16px rgba(204, 68, 34, .8); }
.ct-champs { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.ct-champ__saisie { display: flex; align-items: stretch; height: 48px; border: 1px solid var(--ct-trait); border-radius: 10px; background: var(--ct-fond); overflow: hidden; }
.ct-champ__saisie:focus-within { border-color: var(--c-cote); box-shadow: 0 0 0 3px color-mix(in srgb, var(--c-cote) 25%, transparent); }
.ct-champ__saisie button { flex: none; width: 44px; border: 0; background: transparent; color: inherit; font: 500 20px/1 var(--f-texte); cursor: pointer; }
.ct-champ__saisie button:hover { background: var(--c-sauge-clair); }
.ct-champ__saisie button:focus-visible { outline: 3px solid var(--c-lien); outline-offset: -3px; }
.ct-champ__saisie input { flex: 1; min-width: 0; width: 100%; border: 0; background: transparent; color: inherit; text-align: right; font: 600 19px/1 var(--f-tech); -moz-appearance: textfield; appearance: textfield; }
.ct-champ__saisie input::-webkit-inner-spin-button, .ct-champ__saisie input::-webkit-outer-spin-button { -webkit-appearance: none; margin: 0; }
.ct-champ__saisie input:focus { outline: none; }
.ct-champ__unite { align-self: center; padding: 0 6px 0 4px; font: 13px var(--f-tech); color: var(--c-gris); }
.ct-champ__aide { margin: 6px 0 0; font-size: 13px; line-height: 1.4; color: var(--c-gris); }
.ct-ligne { display: grid; grid-template-columns: auto 1fr; gap: 14px 28px; }

/* Résultat */
.ct-resultat { display: grid; grid-template-columns: minmax(220px, 300px) 1fr; gap: 18px; align-items: center; margin: 26px 0 8px; }
.ct-cle { position: relative; padding: 22px 20px 18px; background: var(--c-postit); color: #1E2424; border-radius: 3px; transform: rotate(-1.2deg); box-shadow: 0 14px 26px -18px rgba(30, 36, 36, .55); }
.ct-cle::before { content: ""; position: absolute; top: -11px; left: 50%; width: 92px; height: 22px; margin-left: -46px; background: color-mix(in srgb, var(--c-soleil) 45%, #fff); opacity: .85; transform: rotate(2deg); }
.ct-cle p { margin: 0; color: inherit; }
.ct-cle__titre { font: 600 12px/1.4 var(--f-tech); letter-spacing: .1em; text-transform: uppercase; }
.ct-cle__valeur { margin: 4px 0 6px; font: 700 clamp(30px, 4.4vw, 40px)/1.05 var(--f-titre); }
.ct-cle__valeur strong { font-weight: inherit; white-space: nowrap; }
.ct-cle__legende { font: 15px/1.3 var(--f-main); }
.ct-mesures { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; margin: 0; }
.ct-mesures div { padding: 10px 12px; border: 1px solid var(--ct-trait); border-radius: 10px; background: var(--ct-fond); }
.ct-mesures dt { font: 11px/1.4 var(--f-tech); letter-spacing: .06em; text-transform: uppercase; color: var(--c-gris); }
.ct-mesures dd { margin: 2px 0 0; font: 600 19px/1.2 var(--f-tech); }

/* Dessins */
.ct-dessins { display: grid; grid-template-columns: minmax(0, 2fr) minmax(0, 5fr); gap: 14px; margin: 14px 0; }
.calc-tremie[data-type="colimacon"] .ct-dessins { grid-template-columns: minmax(0, 1fr); }
.ct-dessin { margin: 0; padding: 12px; border: 1px solid var(--ct-trait); border-radius: 12px; background: var(--ct-fond); }
.ct-dessin svg { display: block; width: 100%; height: auto; max-height: 340px; overflow: visible; }
.ct-dessin--plan svg { height: 300px; }
.calc-tremie[data-type="colimacon"] .ct-dessin--plan svg { height: 260px; }
.ct-dessin figcaption { margin-top: 6px; font: 12px/1.4 var(--f-tech); color: var(--c-gris); text-align: center; }
.ct-escalier { fill: color-mix(in srgb, var(--c-sauge-fonce) 45%, transparent); stroke: var(--ct-encre); stroke-width: 1.6; vector-effect: non-scaling-stroke; stroke-linejoin: round; }
.ct-tremie { fill: color-mix(in srgb, var(--ct-tremie) 16%, transparent); stroke: var(--ct-tremie); stroke-width: 2; stroke-dasharray: 6 4; vector-effect: non-scaling-stroke; }
.ct-marche { stroke: var(--ct-encre); stroke-width: 1; vector-effect: non-scaling-stroke; opacity: .7; }
.ct-arrivee { stroke: var(--ct-encre); stroke-width: 2.2; vector-effect: non-scaling-stroke; }
.ct-fut { fill: var(--ct-fond); stroke: var(--ct-encre); stroke-width: 1.6; vector-effect: non-scaling-stroke; }
.ct-foulee { fill: none; stroke: var(--c-cote); stroke-width: 1.6; stroke-dasharray: 2 4; vector-effect: non-scaling-stroke; stroke-linecap: round; }
.ct-pointe { fill: var(--c-cote); }
.ct-legende { font: 13px var(--f-main); fill: var(--c-gris); }
.ct-dessin--plan .ct-legende, .ct-dessin--plan .ct-cote-texte { font-size: 15px; }
.ct-cote-texte { font: 600 12px var(--f-tech); fill: var(--c-cote); }
.ct-cote { stroke: var(--c-cote); stroke-width: 1; marker-start: none; }
.ct-cote--echappee, .ct-echappee { stroke: var(--c-brique); }
.ct-cote-texte--echappee { fill: var(--c-brique); }
.ct-echappee { stroke-width: 1.2; stroke-dasharray: 5 4; }
.ct-sol { stroke: var(--ct-encre); stroke-width: 2; }
.ct-dalle { fill: url(#ct-hachures); stroke: var(--ct-encre); stroke-width: 1.2; }
.ct-hachure { stroke: color-mix(in srgb, var(--ct-encre) 45%, transparent); stroke-width: 1.4; }
/* Nature du plancher, en coupe et en 3D */
.ct-dalle--beton { fill: url(#ct-hachures); }
.ct-virage { fill: color-mix(in srgb, var(--c-orange) 13%, transparent); stroke: color-mix(in srgb, var(--c-orange) 45%, transparent); stroke-width: 1; stroke-dasharray: 4 3; }
.ct-virage-texte { font: 700 11px var(--f-tech); fill: var(--c-brique); paint-order: stroke; stroke: var(--ct-fond); stroke-width: 3px; }
.ct-virage-titre { font: 600 12px var(--f-tech); fill: var(--c-gris-sombre); }
.ct-pl-contour { fill: none; stroke: var(--ct-encre); stroke-width: 1.2; }
.ct-pl-parquet { fill: #C99A63; }
.ct-pl-solive { fill: #DDB27E; stroke: #9A6E45; stroke-width: .8; }
.ct-pl-platre { fill: #EDEBE4; }
.ct-pl-fond { fill: #F1F2EF; }
.ct-pl-chape { fill: #B9C0BD; }
.ct-pl-poutrelle { fill: #7F8A87; }
.ct-pl-entrevous { fill: #D8C7B4; stroke: #B39B82; stroke-width: .8; rx: 2; }
.ct3-solive { stroke: #7E5533; stroke-width: 7; stroke-linecap: butt; }
.ct3-poutrelle { stroke: #6E7976; stroke-width: 6; stroke-linecap: butt; }
.ct3-chape { stroke: rgba(30, 36, 36, .35); stroke-width: 1.5; }
.ct3-lames path { stroke: rgba(122, 82, 46, .22); stroke-width: 1.2; }
.ct-volee { fill: color-mix(in srgb, var(--c-sauge-fonce) 40%, transparent); }
.ct-marches { fill: none; stroke: var(--ct-encre); stroke-width: 1.8; stroke-linejoin: round; }
/* Escalier tournant vu de côté : une marche = un bloc ; virage teinté, volée lointaine plus pâle */
.ct-bloc-marche { fill: color-mix(in srgb, var(--c-sauge-fonce) 70%, var(--ct-fond)); stroke: var(--ct-encre); stroke-width: 1.2; stroke-linejoin: round; }
.ct-bloc-fut { fill: color-mix(in srgb, var(--ct-encre) 55%, var(--ct-fond)); stroke: var(--ct-encre); stroke-width: 1; }
.ct-bloc-marche--virage { fill: color-mix(in srgb, var(--c-orange) 16%, var(--ct-fond)); }
.ct-bloc-marche--loin { fill: color-mix(in srgb, var(--c-sauge-fonce) 35%, var(--ct-fond)); stroke: color-mix(in srgb, var(--ct-encre) 45%, transparent); }
.ct-dessin--coupe svg { overflow: hidden; }
.ct-bonhomme, .ct3-bonhomme { --bh-pantalon: #2F4B6C; --bh-chemise: var(--c-orange); --bh-peau: #E0AC86; --bh-chaussure: #1E2424; --bh-cheveux: #3B2A22; --bh-ceinture: #22201F; }
.ct-bh-cote--loin { --bh-pantalon: #233A55; --bh-chemise: #C4492B; --bh-peau: #C98F69; --bh-chaussure: #111515; }
.ct-bh { stroke-linecap: round; stroke-linejoin: round; }
.ct-bh-pantalon { fill: var(--bh-pantalon); stroke: var(--bh-pantalon); }
.ct-bh-chaussure { fill: var(--bh-chaussure); stroke: var(--bh-chaussure); }
.ct-bh-chemise { fill: var(--bh-chemise); stroke: var(--bh-chemise); }
.ct-bh-peau { fill: var(--bh-peau); stroke: var(--bh-peau); }
.ct-bh-ceinture { fill: none; stroke: var(--bh-ceinture); }
.ct-bh-semelle { fill: none; stroke: #F4F2EC; }
circle.ct-bh { stroke: none; }
.ct-bh-cheveux { fill: var(--bh-cheveux); }
.ct-bh-oreille { fill: #C98F69; }
.ct-bh-oeil { fill: #1E2424; }
.ct-bh-ombre { fill: rgba(30, 36, 36, .16); }
.ct-bh-choc { fill: none; stroke: var(--c-erreur); stroke-linecap: round; }
.ct-bonhomme--cogne .ct-bh-tete { fill: #F08F7A; }
.ct-rampe line { stroke-linecap: round; }
.ct-cote-texte--echappee { paint-order: stroke; stroke: var(--ct-fond); stroke-width: 4px; stroke-linejoin: round; }
.ct-main-courante { stroke: #9A6E45; stroke-width: 3.5; }
.ct-poteau { stroke: #9A6E45; stroke-width: 3; }
.ct-barreau { stroke: #B89270; stroke-width: 1.2; }
.ct-garde line { stroke: var(--c-orange); stroke-width: 1.5; stroke-dasharray: 3 3; }
.ct-garde-texte { font: 700 12px var(--f-tech); fill: var(--c-orange); paint-order: stroke; stroke: var(--ct-fond); stroke-width: 3px; }
.ct-garde--juste line { stroke: var(--c-brique); }
.ct-garde--juste .ct-garde-texte { fill: var(--c-brique); }
.ct-dessin svg > * { transition: opacity .25s; }

/* Alertes et suite */
.ct-alertes { list-style: none; margin: 0 0 18px !important; padding: 0 !important; display: grid; gap: 8px; }
.ct-alerte { margin: 0; padding: 10px 14px 10px 38px; position: relative; border-radius: 10px; font-size: 15px; line-height: 1.45; background: var(--ct-fond); border: 1px solid var(--ct-trait); }
.ct-alerte::before { content: ""; position: absolute; left: 14px; top: 15px; width: 12px; height: 12px; border-radius: 50%; background: var(--c-cote); }
.ct-alerte--ok::before { background: var(--c-succes); }
.ct-alerte--attention { border-color: color-mix(in srgb, var(--c-orange) 50%, transparent); background: color-mix(in srgb, var(--c-orange) 8%, var(--ct-fond)); }
.ct-alerte--attention::before { background: var(--c-orange); }
.ct-alerte--alerte { border-color: color-mix(in srgb, var(--c-erreur) 55%, transparent); background: color-mix(in srgb, var(--c-erreur) 8%, var(--ct-fond)); }
.ct-alerte--alerte::before { background: var(--c-erreur); }
.ct-suite { display: grid; grid-template-columns: 1fr auto; gap: 16px 24px; align-items: center; padding: 18px 20px; border-radius: 12px; background: var(--c-sauge-fonce); }
.ct-suite p { margin: 0; font-size: 15px; line-height: 1.5; }
.ct-suite .ct-suite__titre { margin-bottom: 4px; font: 700 17px/1.3 var(--f-titre); }
.ct-suite__actions { display: flex; flex-direction: column; gap: 8px; align-items: stretch; }
.ct-copier { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 44px; padding: 8px 14px; border: 1px solid var(--c-trait-sombre); border-radius: 8px; background: var(--ct-fond); color: inherit; font: 500 14px var(--f-texte); cursor: pointer; }
.ct-copier svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; }
.ct-copier[data-fait="1"] { border-color: var(--c-succes); color: var(--c-succes); }
.ct-copier[data-fait="0"] { border-color: var(--c-erreur); color: var(--c-erreur); }
.calc-tremie .outil__avertissement { margin: 14px 0 0; font-size: 13px; line-height: 1.5; color: var(--c-gris); }

/* Mode nuit : le post-it reste jaune, les fonds suivent la palette */
[data-theme="nuit"] .calc-tremie { --ct-fond: var(--c-sauge-clair); --ct-encre: var(--c-texte); --ct-tremie: var(--c-orange-clair);
  background: linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px) 0 0 / 24px 24px, linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px) 0 0 / 24px 24px, var(--c-sauge); }
[data-theme="nuit"] .ct-cle { color: #1E2424; }
[data-theme="nuit"] .ct-pastille span { background: rgba(255, 255, 255, .04); border-color: var(--c-trait-sombre); }
[data-theme="nuit"] .ct-pastille span::before { border-color: rgba(255, 255, 255, .35); }
[data-theme="nuit"] .ct-pastille svg { stroke: var(--c-texte); }
[data-theme="nuit"] .ct-groupe--types .ct-pastille input:checked + span svg { stroke: var(--c-orange-clair); }

@media (max-width: 900px) {
  .ct-groupe--types .ct-pastilles { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .ct-resultat { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .calc-tremie { margin-inline: -8px; padding: 18px 14px; }
  .ct-groupe--types .ct-pastilles { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ct-champs, .ct-ligne { grid-template-columns: 1fr; }
  .ct-mesures { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ct-dessins { grid-template-columns: 1fr; }
  .ct-dessin--plan svg { height: auto; max-height: 320px; }
  .ct-suite { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  .ct-pastille span, .ct-dessin svg > * { transition: none; }
  .ct-groupe--types .ct-pastille input:checked + span { transform: none; }
}
.ct-dessin--coupe .ct-cote-texte { paint-order: stroke; stroke: var(--ct-fond); stroke-width: 3px; stroke-linejoin: round; }

/* Étapes numérotées et mesures */
.ct-etape > legend { display: flex; align-items: center; gap: 10px; margin: 0 0 12px; font: 700 18px/1.25 var(--f-titre); letter-spacing: 0; text-transform: none; color: var(--c-texte); }
.ct-num { flex: none; display: inline-grid; place-items: center; width: 28px; height: 28px; border-radius: 50%; background: var(--c-orange); color: #fff; font: 700 14px/1 var(--f-tech); }
.ct-form { gap: 26px; }
.ct-mesurer { display: grid; grid-template-columns: 170px 1fr; gap: 18px; align-items: start; }
.ct-schema { width: 100%; height: auto; padding: 8px; border: 1px dashed var(--ct-trait); border-radius: 10px; background: var(--ct-fond); }
.ct-schema__sol { stroke: var(--ct-encre); stroke-width: 2; }
.ct-schema__dalle { fill: var(--c-sauge-clair); stroke: var(--ct-encre); stroke-width: 1.5; }
.ct-schema__trou { fill: color-mix(in srgb, var(--ct-tremie) 16%, transparent); stroke: var(--ct-tremie); stroke-width: 1.5; stroke-dasharray: 4 3; }
.ct-schema__marches { fill: none; stroke: var(--ct-encre); stroke-width: 1.5; }
.ct-schema__cote { fill: none; stroke: var(--c-orange); stroke-width: 1.6; }
.ct-schema__lettre { font: 700 15px var(--f-tech); fill: var(--c-orange); }
.ct-schema__texte { font: 600 11px var(--f-tech); fill: var(--c-gris); }
.ct-ligne .ct-champ { max-width: 300px; }
.ct-groupe--court .ct-champ__aide { margin-top: 8px; }

/* Réponse en clair */
.ct-reponse { margin-top: 30px; padding-top: 22px; border-top: 2px dashed var(--ct-trait); }
.ct-reponse__titre { margin: 0 0 6px; font: 600 12px/1.4 var(--f-tech); letter-spacing: .1em; text-transform: uppercase; color: var(--c-orange); }
.ct-phrase { margin: 0 0 4px; font-size: 17px; line-height: 1.55; }
.ct-phrase__alerte { color: var(--c-erreur); font-weight: 700; }
.ct-detail { margin: 0 0 18px; padding: 12px 16px; border: 1px solid var(--ct-trait); border-radius: 10px; background: var(--ct-fond); }
.ct-detail summary { cursor: pointer; font-weight: 700; }
.ct-detail ol { margin: 10px 0 0; padding-left: 22px; display: grid; gap: 6px; }
.ct-detail li { font-size: 15px; line-height: 1.5; }
[data-theme="nuit"] .ct-bonhomme, [data-theme="nuit"] .ct3-bonhomme { --bh-pantalon: #8FA4B2; }
[data-theme="nuit"] .ct-bh-cote--loin { --bh-pantalon: #6F8594; }
@media (max-width: 640px) {
  .ct-mesurer { grid-template-columns: 1fr; }
  .ct-schema { max-width: 220px; }
}

/* Vue 3D */
.ct-dessin--3d { position: relative; margin: 14px 0 0; padding: 8px; background: linear-gradient(180deg, color-mix(in srgb, var(--c-sauge-clair) 70%, var(--ct-fond)), var(--ct-fond)); }
.ct-dessin--3d svg { aspect-ratio: 4 / 3; height: auto; max-height: 480px; overflow: hidden; cursor: grab; touch-action: pan-y; user-select: none; }
.ct-dessin--3d svg:focus-visible { outline: 2px solid var(--c-orange); outline-offset: 2px; border-radius: 8px; }
.ct-dessin--3d svg.ct3--tire { cursor: grabbing; }
.ct3-face { stroke: rgba(30, 36, 36, .28); stroke-width: .8; stroke-linejoin: round; }
.ct3-sol { stroke: rgba(30, 36, 36, .12); stroke-width: 1; }
.ct3-dalle { stroke: rgba(30, 36, 36, .35); stroke-width: 1; fill-opacity: .6; }
.ct3-paroi { stroke: var(--c-orange); stroke-width: .8; }
.ct3-trou { fill: none; stroke: var(--c-orange); stroke-width: 3; stroke-dasharray: 9 6; stroke-linejoin: round; }
.ct3-etiquette { font-family: var(--f-tech); font-weight: 700; fill: var(--c-brique); paint-order: stroke; stroke: #fff; stroke-width: 5px; stroke-linejoin: round; }
.ct-lecture { display: flex; align-items: center; gap: 10px; margin-top: 8px; }
.ct-lecture button { flex: none; width: 34px; height: 34px; display: grid; place-items: center; border: 1px solid var(--ct-trait); border-radius: 50%; background: var(--ct-fond); color: inherit; cursor: pointer; }
.ct-lecture button:hover { border-color: var(--c-orange); color: var(--c-orange); }
.ct-lecture svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; }
.ct-lecture__jouer { display: none; fill: currentColor; }
.ct-lecture button[aria-pressed="true"] .ct-lecture__pause { display: none; }
.ct-lecture button[aria-pressed="true"] .ct-lecture__jouer { display: inline; }
.ct-lecture input { flex: 1; min-width: 0; accent-color: var(--c-orange); }
.ct3-lame { stroke: rgba(30, 36, 36, .07); stroke-width: 1; }
.ct3-mur { stroke: rgba(30, 36, 36, .14); stroke-width: 1; }
.ct3-plinthe { stroke: rgba(30, 36, 36, .22); stroke-width: 2.2; }
.ct3-ombre { fill: rgba(30, 36, 36, .08); }
.ct3-main-courante { stroke: #8E6440; stroke-width: 5.5; stroke-linecap: round; }
.ct3-poteau { stroke: #8E6440; stroke-width: 6; stroke-linecap: round; }
.ct3-barreau { stroke: #A97F59; stroke-width: 2.2; stroke-linecap: round; }
.ct3-garde line { stroke: var(--c-orange); stroke-width: 2.5; stroke-dasharray: 6 5; }
.ct3-garde-texte { font-family: var(--f-tech); font-weight: 700; fill: var(--c-orange); paint-order: stroke; stroke: #fff; stroke-width: 4px; stroke-linejoin: round; }
.ct3-garde--juste line { stroke: var(--c-brique); }
.ct3-garde--juste .ct3-garde-texte { fill: var(--c-brique); }
.ct3-boutons { position: absolute; top: 14px; right: 14px; display: flex; gap: 6px; }
.ct3-boutons button { width: 40px; height: 40px; border: 1px solid var(--ct-trait); border-radius: 50%; background: var(--ct-fond); color: inherit; font-size: 18px; cursor: pointer; }
.ct3-boutons button:hover { border-color: var(--c-orange); color: var(--c-orange); }

/* ===== Disposition du simulateur (/devis) : réglages à gauche, résultat et aperçu fixes à droite ===== */
.simulateur.section--outil { min-height: 0; padding-bottom: clamp(36px, 5vw, 56px); }
.section--outil .fil-ariane { margin-bottom: 10px; }
.section--outil .simulateur__intro p strong { font-weight: 700; color: var(--c-texte); }
.section--outil + .section { padding-top: clamp(40px, 5vw, 64px); }
.calc-tremie { margin: 0; padding: 0; border: 0; background: none; }
.calc-tremie .simulateur__grille { grid-template-columns: minmax(0, 1fr) minmax(0, 470px); }
.ct-reglages { display: block; }
.ct-bloc { margin: 0; padding: 0; border: 0; min-width: 0; }
.ct-bloc + .ct-bloc { margin-top: 24px; padding-top: 22px; border-top: 1px solid var(--c-trait-sombre); }
.ct-bloc__titre { margin: 0 0 14px; padding: 0; font: 700 17px/1.3 var(--f-titre); color: var(--c-texte); }
.ct-formes { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.ct-forme.prestation { column-gap: 12px; padding: 14px; }
.ct-forme .prestation__ico { grid-row: span 2; width: 44px; height: 44px; }
.ct-forme .prestation__ico svg { width: 30px; height: 30px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linejoin: round; stroke-linecap: round; }
.ct-forme .prestation__titre { font-size: 15px; }
.ct-forme .prestation__resume { font-size: 13px; }
.ct-mesurer { grid-template-columns: 150px minmax(0, 1fr); }
.ct-champs { grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); }
.ct-ligne { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); align-items: start; }
.ct-ligne .ct-champ { max-width: none; }
.ct-champ__libelle { display: block; margin: 0 0 8px; font: 600 12px/1.4 var(--f-tech); letter-spacing: .08em; text-transform: uppercase; color: var(--c-gris-sombre); }
.ct-reglages .reponses { margin-top: 0; }
.ct-reglages .ct-champ__aide { margin: 8px 0 0; }
.ct-actions { align-items: center; flex-wrap: wrap; }
.ct-actions .btn { margin-left: auto; }

/* Colonne de droite : le résultat d'abord, toujours à l'écran */
.ct-apercu .estimation__carte { order: -1; }
.ct-apercu .estimation__total { font-size: 44px; }
.ct-carte__legende { margin: 2px 0 0; font-size: 13.5px; line-height: 1.4; color: var(--c-gris-sombre); }
/* Le résultat ne remplace pas l'étude du plancher : rappel sous les dimensions, visible aussi sur mobile */
.ct-etude { margin: 12px 0 0; padding: 10px 12px; border: 1px solid rgba(237, 91, 56, .28); border-radius: var(--rayon-petit); background: rgba(237, 91, 56, .08); font-size: 13.5px; line-height: 1.45; color: var(--c-texte-sombre); }
.ct-etude { grid-column: 1 / -1; }
@media (max-width: 960px) { .ct-etude { margin-top: 8px; padding: 7px 10px; font-size: 12.5px; line-height: 1.35; } }
.ct-etude a { display: inline-flex; align-items: center; gap: 4px; font-weight: 700; color: var(--c-lien); white-space: nowrap; }
.ct-etude a svg { width: 14px; height: 14px; }
.ct-cogne { color: var(--c-erreur); }
.ct-apercu .ct-alertes { margin: 0 !important; }
.ct-apercu .ct-alerte { font-size: 14px; }
.ct-fenetre { padding: 12px 14px 8px; }
.ct-fenetre .ct-dessin { margin: 0; padding: 0; border: 0; background: none; }
.ct-fenetre .ct-dessin--3d svg { max-height: none; }
.ct-fenetre .ct-dessin--plan svg { height: 280px; }
.ct-fenetre .ct-dessin figcaption { margin-top: 4px; }
.ct-fenetre .ct3-boutons { top: 0; right: 0; }
.ct-onglets { display: inline-flex; gap: 4px; margin: 0 0 8px; padding: 3px; border-radius: 99px; background: var(--c-nuit-3); border: 1px solid var(--c-trait-sombre); }
.ct-onglets button { min-height: 32px; padding: 0 14px; border: 0; border-radius: 99px; background: transparent; color: var(--c-gris-sombre); font: 600 13px var(--f-texte); cursor: pointer; }
.ct-onglets button[aria-selected="true"] { background: color-mix(in srgb, var(--c-orange) 14%, var(--c-blanc)); color: var(--c-texte); box-shadow: inset 0 0 0 1px var(--c-orange); }
.ct-onglets button:disabled { opacity: .4; cursor: default; }
.ct-onglets button:focus-visible { outline: 2px solid var(--c-orange); outline-offset: 2px; }
/* Pastille qui glisse d'un onglet à l'autre (posée par le script ; sans script, l'onglet choisi garde son fond) */
.ct-onglets--glisse { position: relative; }
.ct-onglets--glisse button { position: relative; z-index: 1; transition: color .3s; }
.ct-onglets--glisse button[aria-selected="true"] { background: transparent; box-shadow: none; }
.ct-onglets__curseur { position: absolute; top: 3px; bottom: 3px; left: 0; width: 0; border-radius: 99px; pointer-events: none;
  background: color-mix(in srgb, var(--c-orange) 14%, var(--c-blanc)); box-shadow: inset 0 0 0 1px var(--c-orange);
  transition: transform .45s cubic-bezier(.2, .7, .2, 1), width .45s cubic-bezier(.2, .7, .2, 1); }
@media (prefers-reduced-motion: reduce) { .ct-onglets__curseur { transition: none; } }
.calc-tremie > .ct-detail { margin: 24px 0 0; }
.ct-detail .outil__avertissement { margin: 12px 0 0; font-size: 13px; color: var(--c-gris); }

@media (max-width: 1100px) { .ct-formes { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 960px) {
  .calc-tremie .simulateur__grille { grid-template-columns: 1fr; }
  .ct-apercu .estimation__carte { order: -2; }
  .ct-apercu .estimation__total { font-size: 28px; }
  .ct-fenetre { order: -1; }
}
@media (max-width: 640px) {
  .ct-formes, .ct-ligne { grid-template-columns: 1fr; }
  .ct-actions .ct-copier, .ct-actions .btn { flex: 1 1 100%; margin-left: 0; }
  .ct-mesurer { grid-template-columns: 1fr; }
}
.ct-apercu .estimation__lignes { grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 18px; margin-top: 12px; }
.ct-apercu .estimation__lignes li { border-bottom: 0; border-top: 1px solid var(--c-trait-sombre); }
.ct-apercu .estimation__lignes li:last-child { grid-column: 1 / -1; }
@media (min-width: 961px) and (max-width: 1200px) { .calc-tremie .simulateur__grille { grid-template-columns: minmax(0, 1fr) minmax(0, 400px); } }
.ct-champ label.reponse { display: flex; margin: 0; padding: 11px 18px; font: inherit; letter-spacing: 0; text-transform: none; color: inherit; }
.ct-apercu .ct-alertes { margin: 12px 0 0 !important; gap: 6px; }
.ct-apercu .ct-alerte { padding: 8px 12px 8px 30px; font-size: 13px; line-height: 1.4; }
.ct-apercu .ct-alerte::before { left: 11px; top: 12px; width: 9px; height: 9px; }
.ct-apercu .ct-alerte--ok, .ct-apercu .ct-alerte--info { display: none; }
.ct-apercu { max-height: calc(100vh - var(--hauteur-entete) - 32px); }
.ct-fenetre .ct-dessin svg { max-height: min(300px, 38vh); }
/* La 3D prend la place libre sous le résultat ; la consigne de rotation passe en info-bulle */
.ct-fenetre .ct-dessin--3d svg { max-height: max(220px, min(380px, calc(100vh - 665px))); }
.ct-fenetre .ct-dessin--3d figcaption { display: none; }
.ct3-boutons [data-plein-ecran] { font-size: 16px; }
.ct-fenetre:fullscreen { display: flex; flex-direction: column; padding: 20px 24px; background: var(--c-blanc); overflow: auto; }
.ct-fenetre:fullscreen .ct-dessin svg { max-height: none; height: calc(100vh - 140px); width: 100%; aspect-ratio: auto; }
.ct-fenetre:fullscreen .scotch { display: none; }
/* Les alertes « attention » restent visibles sur mobile : elles signalent un passage serré ou un pas inconfortable */
@media (max-width: 960px) { .ct-apercu { max-height: none; } .ct-apercu .ct-alertes, .ct-carte__legende, .ct-carte__hypotheses { grid-column: 1 / -1; } }
/* Hypothèses du calcul, juste sous la cote */
.ct-carte__hypotheses { margin: 6px 0 0; font-size: 12.5px; line-height: 1.4; color: var(--c-gris); }
.ct-carte__hypotheses summary { cursor: pointer; width: fit-content; font-weight: 600; }
.ct-carte__hypotheses p { margin: 4px 0 0; }
.calc-tremie[data-invalide] .ct-carte__hypotheses { display: none; }
/* Ordinateur : la fenêtre du dessin reste entière en bas de l'aperçu ; si la carte est trop haute pour l'écran, elle défile seule */
@media (min-width: 961px) {
  .ct-apercu { display: flex; flex-direction: column; gap: 14px; }
  .ct-apercu .estimation__carte { flex: 0 1 auto; min-height: 0; overflow-y: auto; overscroll-behavior: contain; scrollbar-width: thin; }
  .ct-apercu .ct-fenetre { flex: none; }
}
/* Écran peu haut (portable, zoom) : plus de place pour une carte lisible et le dessin entier, retour au défilement normal de la page */
@media (min-width: 961px) and (max-height: 780px) {
  .ct-apercu { position: static; max-height: none; }
  .ct-apercu .estimation__carte { overflow: visible; }
}
.ct-zone__cote { fill: var(--c-succes); }
/* Saisie invalide : message sous le champ, résultat en attente */
.ct-champ__erreur { margin: 6px 0 0; font-size: 13px; line-height: 1.4; font-weight: 600; color: var(--c-erreur); }
.ct-champ input[aria-invalid="true"] { border-color: var(--c-erreur); box-shadow: 0 0 0 1px var(--c-erreur); }
.calc-tremie[data-invalide] .ct-fenetre { opacity: .35; pointer-events: none; }
.calc-tremie[data-invalide] .ct-apercu .estimation__lignes, .calc-tremie[data-invalide] .ct-apercu .ct-alertes { display: none; }
.ct-copier:disabled { opacity: .45; cursor: not-allowed; }
/* Place libre au sol : zone saisie en tirets sur la vue de dessus, verdict et variantes cliquables */
.ct-bloc__option { margin-left: 6px; font: 500 12px var(--f-texte); color: var(--c-gris); text-transform: none; letter-spacing: 0; }
.ct-zone { fill: color-mix(in srgb, var(--c-succes) 8%, transparent); stroke: var(--c-succes); stroke-width: 1.6; stroke-dasharray: 3 4; vector-effect: non-scaling-stroke; }
.ct-zone--limite { stroke-width: 2.2; stroke-dasharray: 6 4; }
.ct-alerte--tient { border-color: color-mix(in srgb, var(--c-succes) 45%, transparent); background: color-mix(in srgb, var(--c-succes) 7%, var(--ct-fond)); }
.ct-alerte--tient::before { background: var(--c-succes); }
.ct-variante { margin: 4px 4px 0 0; padding: 3px 10px; border: 1px solid var(--c-orange); border-radius: 99px; background: var(--c-blanc); color: var(--c-texte); font: 600 12.5px var(--f-texte); cursor: pointer; }
.ct-variante:hover { background: color-mix(in srgb, var(--c-orange) 12%, var(--c-blanc)); }
.ct-variante:focus-visible { outline: 2px solid var(--c-orange); outline-offset: 2px; }
.ct-orientation { margin-top: 14px; }
/* Place libre dans les trois vues : verte si l'escalier tient, rouge s'il dépasse, avec la cote du dépassement */
.ct-zone--trop { fill: color-mix(in srgb, var(--c-erreur) 7%, transparent); stroke: var(--c-erreur); }
.ct3-zone { fill: color-mix(in srgb, var(--c-succes) 14%, transparent); stroke: var(--c-succes); stroke-width: 2; stroke-dasharray: 6 5; }
.ct3-zone--trop { fill: color-mix(in srgb, var(--c-erreur) 12%, transparent); stroke: var(--c-erreur); }
.ct3-zone--limite { fill: none; stroke-width: 2.5; }
.ct-place__sol { fill: color-mix(in srgb, var(--c-succes) 35%, transparent); }
.ct-place__limite { stroke: var(--c-succes); stroke-width: 1.6; stroke-dasharray: 5 4; }
.ct-place__texte { font: 600 11px var(--f-texte); fill: var(--c-succes); paint-order: stroke; stroke: var(--c-blanc); stroke-width: 3px; }
.ct-place--trop .ct-place__sol { fill: color-mix(in srgb, var(--c-erreur) 30%, transparent); }
.ct-place--trop .ct-place__limite { stroke: var(--c-erreur); }
.ct-place--trop .ct-place__texte { fill: var(--c-erreur); }
.ct-trop__trait { stroke: var(--c-erreur); stroke-width: 1.8; vector-effect: non-scaling-stroke; }
.ct-trop__pointe { fill: var(--c-erreur); }
.ct-trop__texte { font: 700 12px var(--f-texte); fill: var(--c-erreur); }
.ct-dessin--plan .ct-trop__texte { font-size: 16px; }
.ct3-zone-texte { font-family: var(--f-texte); font-weight: 700; fill: var(--c-succes); paint-order: stroke; stroke: var(--c-blanc); stroke-width: 3px; }
.ct3-zone-texte--trop { fill: var(--c-erreur); }
.ct-zone__cote--trop { fill: var(--c-erreur); }
.ct-place__texte--trop { fill: var(--c-erreur); }