/* Bâtissez votre cabanon — style de la vue, aux couleurs et polices de cabanoneco.ca.
   Tout est rangé sous .btc pour ne rien changer au reste de leur page. */
.btc {
  --btc-vert: #7AA33C;
  --btc-vert-fonce: #5E8228;
  --btc-ardoise: #1E293B;
  --btc-brun: #6B4F3A;
  --btc-fond: #F8FAFC;
  --btc-gris: #DDDDDD;
  --btc-texte: #334155;
  --btc-titre: "Playfair Display", Georgia, serif;
  --btc-corps: "Open Sans", Arial, sans-serif;
  font-family: var(--btc-corps);
  color: var(--btc-texte);
  background: #FFFFFF;
}
.btc *, .btc *::before, .btc *::after { box-sizing: border-box; }
.btc [hidden] { display: none !important; }

/* Bandeau d'en-tête, comme leur page Soumission. */
.btc-hero {
  position: relative;
  min-height: 380px;
  display: grid;
  place-items: center;
  text-align: center;
  background: url("https://cabanoneco.ca/wp-content/uploads/2026/09/AAF40633-C626-4E2D-940D-1D26034B94FB.png") center 40% / cover no-repeat;
  overflow: hidden;
}
.btc-hero-voile { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(15, 23, 42, .35), rgba(15, 23, 42, .62)); }
.btc-hero-contenu { position: relative; max-width: 760px; padding: 56px 20px; color: #FFFFFF; }
.btc-hero h1 {
  font-family: var(--btc-titre); font-weight: 600; font-size: clamp(2.1rem, 5vw, 3.4rem); line-height: 1.12;
  margin: 18px 0 14px; color: #FFFFFF; text-transform: none;
}
.btc-hero h1 span { color: var(--btc-vert); }
.btc-pastille {
  display: inline-block; margin: 0; padding: 8px 18px; border: 1px solid rgba(255, 255, 255, .85); border-radius: 999px;
  font-size: .78rem; letter-spacing: .08em; text-transform: uppercase; color: #FFFFFF; background: rgba(15, 23, 42, .25);
}
.btc-sous { margin: 0 auto; max-width: 620px; font-size: 1.02rem; line-height: 1.6; color: #F1F5F9; }

.btc-bandeau {
  display: flex; flex-wrap: wrap; gap: 6px 14px; justify-content: center; align-items: baseline;
  padding: 12px 20px; background: #FFF7E6; border-bottom: 1px solid #F1D9A6; color: #6B4F3A; font-size: .92rem; text-align: center;
}
.btc-bandeau strong { color: #8A5A12; text-transform: uppercase; letter-spacing: .06em; font-size: .8rem; }

.btc-app { max-width: 1320px; margin: 0 auto; padding: 34px 20px 64px; }

/* Étapes. */
.btc-etapes ol { list-style: none; margin: 0 0 26px; padding: 0; display: flex; gap: 8px; overflow-x: auto; scrollbar-width: thin; }
.btc-etapes li { flex: 1 0 auto; }
.btc .btc-etapes button {
  width: 100%; display: flex; align-items: center; gap: 10px; padding: 10px 14px; border-radius: 999px;
  border: 1px solid var(--btc-gris); background: #FFFFFF; color: var(--btc-ardoise);
  font: 600 .9rem/1.2 var(--btc-corps); cursor: pointer; text-transform: none; letter-spacing: 0; white-space: nowrap;
}
.btc .btc-etapes button:hover { border-color: var(--btc-vert); background: #FFFFFF; color: var(--btc-ardoise); }
.btc-num {
  flex: none; display: grid; place-items: center; width: 26px; height: 26px; border-radius: 50%;
  background: var(--btc-fond); border: 1px solid var(--btc-gris); font-size: .8rem;
}
.btc .btc-etapes button[aria-current="step"] { background: var(--btc-ardoise); border-color: var(--btc-ardoise); color: #FFFFFF; }
.btc .btc-etapes button[aria-current="step"] .btc-num { background: var(--btc-vert); border-color: var(--btc-vert); color: #FFFFFF; }
.btc .btc-etapes button.btc-fait .btc-num { background: var(--btc-vert); border-color: var(--btc-vert); color: #FFFFFF; }

/* Grille : dessin à gauche, étapes à droite. */
.btc-grille { display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr); gap: 28px; align-items: start; }
.btc-scene { position: sticky; top: 16px; display: grid; gap: 14px; }
.btc-cadre { border-radius: 24px; overflow: hidden; box-shadow: 0 0 10px rgba(0, 0, 0, .18); background: #16324F; }
.btc-dessin { display: block; width: 100%; height: auto; aspect-ratio: 960 / 660; }
.btc-melange { display: flex; align-items: center; gap: 12px; padding: 0 6px; font-size: .85rem; font-weight: 600; color: var(--btc-ardoise); }
.btc-melange input { flex: 1; accent-color: var(--btc-vert); }
.btc-resume { padding: 16px 18px; border-radius: 18px; background: var(--btc-fond); border: 1px solid #E5E7EB; }
.btc-resume-titre { margin: 0 0 8px; font: 600 1.05rem/1.3 var(--btc-titre); color: var(--btc-ardoise); }
.btc-puces { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.btc .btc-puces button {
  display: grid; gap: 2px; text-align: left; padding: 8px 12px; border-radius: 12px; border: 1px solid #E2E8F0; background: #FFFFFF;
  color: #64748B; font: 600 .7rem/1.2 var(--btc-corps); text-transform: uppercase; letter-spacing: .06em; cursor: pointer;
}
.btc .btc-puces button:hover { border-color: var(--btc-vert); background: #FFFFFF; color: #64748B; }
.btc-puces strong { color: var(--btc-ardoise); font-size: .88rem; text-transform: none; letter-spacing: 0; }

.btc-panneau, .btc-soumission {
  padding: 26px; border-radius: 24px; background: #FFFFFF; box-shadow: 0 0 10px rgba(0, 0, 0, .18);
}
.btc-etape h2, .btc-soumission h2 {
  margin: 0 0 6px; font: 600 1.6rem/1.25 var(--btc-titre); color: var(--btc-ardoise); text-transform: none;
}
.btc-etape h2::after, .btc-soumission h2::after {
  content: ""; display: block; width: 72px; height: 6px; margin-top: 10px; border-radius: 16px; background: var(--btc-vert);
}
.btc-etape h2:focus, .btc-soumission h2:focus { outline: none; }
.btc-etape h2:focus-visible, .btc-soumission h2:focus-visible { outline: 2px dashed var(--btc-vert); outline-offset: 6px; border-radius: 4px; }
.btc-aide, .btc-note { margin: 10px 0 18px; font-size: .95rem; line-height: 1.55; }
.btc-note { font-size: .85rem; color: #64748B; }

/* Cartes et options. */
.btc-choix { display: grid; gap: 12px; }
.btc-modeles { grid-template-columns: repeat(2, minmax(0, 1fr)); max-height: 640px; overflow-y: auto; padding: 2px; }
.btc-portes, .btc-fenetres { grid-template-columns: repeat(auto-fill, minmax(118px, 1fr)); }
.btc .btc-carte, .btc .btc-option, .btc .btc-teinte {
  display: grid; gap: 6px; align-content: start; text-align: left; padding: 10px; border-radius: 16px;
  border: 2px solid #E5E7EB; background: #FFFFFF; color: var(--btc-ardoise); cursor: pointer;
  font: 400 .85rem/1.35 var(--btc-corps); text-transform: none; letter-spacing: 0;
  transition: border-color .15s ease, box-shadow .15s ease, transform .15s ease;
}
.btc .btc-carte:hover, .btc .btc-option:hover, .btc .btc-teinte:hover { border-color: #B9D08F; background: #FFFFFF; color: var(--btc-ardoise); transform: translateY(-1px); }
.btc .btc-carte[aria-pressed="true"], .btc .btc-option[aria-pressed="true"], .btc .btc-teinte[aria-pressed="true"] {
  border-color: var(--btc-vert); box-shadow: 0 0 0 3px rgba(122, 163, 60, .2);
}
.btc-vignette { display: block; width: 100%; height: auto; aspect-ratio: 320 / 230; border-radius: 10px; }
.btc-carte-nom { font: 600 1rem/1.2 var(--btc-titre); }
.btc-carte-texte { color: #64748B; font-size: .8rem; }
.btc-option svg { width: 100%; height: 76px; }
.btc-option span { text-align: center; font-weight: 600; font-size: .8rem; }

.btc-teintes { border: 0; margin: 0 0 14px; padding: 0; }
.btc-teintes legend { padding: 0; margin-bottom: 8px; font-weight: 700; font-size: .85rem; color: var(--btc-ardoise); }
.btc-teintes > div { display: flex; flex-wrap: wrap; gap: 8px; }
.btc .btc-teinte { grid-auto-flow: column; align-items: center; gap: 8px; padding: 6px 12px 6px 6px; border-radius: 999px; }
.btc-pastille-couleur { width: 26px; height: 26px; border-radius: 50%; border: 1px solid rgba(0, 0, 0, .25); }

/* Dimensions. */
.btc-dims { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.btc-dim { display: grid; gap: 8px; padding: 14px; border-radius: 16px; background: var(--btc-fond); border: 1px solid #E5E7EB; }
.btc-dim-seule { margin-top: 16px; max-width: 280px; }
.btc-dim-nom { font-weight: 700; font-size: .85rem; color: var(--btc-ardoise); }
.btc-pas { display: flex; align-items: center; gap: 10px; }
.btc .btc-pas button {
  width: 44px; height: 44px; flex: none; border-radius: 50%; border: 1px solid var(--btc-gris); background: #FFFFFF;
  color: var(--btc-ardoise); font: 600 1.3rem/1 var(--btc-corps); padding: 0; cursor: pointer;
}
.btc .btc-pas button:hover:not(:disabled) { border-color: var(--btc-vert); background: #FFFFFF; color: var(--btc-ardoise); }
.btc .btc-pas button:disabled { opacity: .35; cursor: default; }
.btc-pas output { flex: 1; text-align: center; font: 600 1.5rem/1 var(--btc-titre); color: var(--btc-ardoise); }
.btc-surface { margin: 16px 0 0; font-size: .95rem; }

.btc-inclus { margin: 16px 0 18px; padding: 0; list-style: none; display: grid; gap: 8px; }
.btc-inclus li { position: relative; padding-left: 30px; line-height: 1.5; }
.btc-inclus li::before {
  content: ""; position: absolute; left: 0; top: 3px; width: 20px; height: 20px; border-radius: 50%; background: var(--btc-vert)
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M5 10.5l3 3 7-7' fill='none' stroke='white' stroke-width='2.4'/%3E%3C/svg%3E") center / 14px no-repeat;
}

/* Formulaire. */
.btc-coordonnees { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.btc-champ { display: grid; gap: 6px; font-family: var(--btc-titre); font-weight: 600; font-size: .85rem; color: var(--btc-ardoise); }
.btc-champ-large { grid-column: 1 / -1; }
.btc .btc-champ input, .btc .btc-champ textarea {
  width: 100%; padding: 12px 14px; border-radius: 10px; border: 1px solid #E2E8F0; background: var(--btc-fond);
  font: 400 .95rem/1.4 var(--btc-corps); color: var(--btc-ardoise);
}
.btc .btc-champ input:focus, .btc .btc-champ textarea:focus { outline: 2px solid var(--btc-vert); outline-offset: 1px; border-color: var(--btc-vert); }
.btc .btc-champ input[aria-invalid="true"] { border-color: #B42318; background: #FEF3F2; }
.btc-erreur { grid-column: 1 / -1; margin: 0; color: #B42318; font-weight: 600; }

/* Boutons. */
.btc-nav { display: flex; justify-content: space-between; gap: 12px; margin-top: 24px; }
.btc .btc-bouton {
  padding: 12px 22px; border-radius: 8px; border: 1px solid transparent; font: 600 .95rem/1.2 var(--btc-corps);
  cursor: pointer; text-transform: none; letter-spacing: 0;
}
.btc .btc-principal { background: var(--btc-vert); color: #FFFFFF; box-shadow: 0 2px 6px rgba(94, 130, 40, .35); }
.btc .btc-principal:hover { background: var(--btc-vert-fonce); color: #FFFFFF; }
.btc .btc-secondaire { background: #FFFFFF; color: var(--btc-ardoise); border-color: var(--btc-gris); }
.btc .btc-secondaire:hover { border-color: var(--btc-ardoise); background: #FFFFFF; color: var(--btc-ardoise); }
.btc .btc-bouton:disabled { opacity: .4; cursor: default; }
.btc-coordonnees .btc-principal { grid-column: 1 / -1; justify-self: start; }

.btc button:focus-visible, .btc input[type="range"]:focus-visible { outline: 3px solid var(--btc-vert); outline-offset: 2px; }

/* Demande de soumission. */
.btc-soumission-tete p { margin: 12px 0 20px; }
.btc-soumission-corps { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 24px; align-items: start; }
.btc-soumission-plan { border-radius: 18px; overflow: hidden; background: #16324F; }
.btc-fiche { display: grid; grid-template-columns: max-content minmax(0, 1fr); gap: 0; margin: 0; border: 1px solid #E5E7EB; border-radius: 14px; overflow: hidden; }
.btc-fiche dt, .btc-fiche dd { margin: 0; padding: 10px 14px; border-bottom: 1px solid #EEF2F6; font-size: .9rem; }
.btc-fiche dt { font-weight: 700; color: var(--btc-ardoise); background: var(--btc-fond); }
.btc-fiche dd { white-space: pre-line; overflow-wrap: anywhere; }
.btc-statut { margin: 20px 0 0; padding: 14px 16px; border-radius: 12px; background: #EEF6E3; border: 1px solid #C9DDA8; color: #3F5A17; font-weight: 600; }
.btc-statut:focus { outline: 3px solid var(--btc-vert); outline-offset: 2px; }

@media (max-width: 1000px) {
  .btc-grille, .btc-soumission-corps { grid-template-columns: 1fr; }
  .btc-scene { position: relative; top: auto; }
  .btc-modeles { max-height: none; }
}
@media (max-width: 560px) {
  .btc-app { padding: 22px 16px 48px; }
  .btc-panneau, .btc-soumission { padding: 18px; border-radius: 18px; }
  .btc-dims, .btc-coordonnees { grid-template-columns: 1fr; }
  .btc-modeles { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
  .btc .btc-carte { padding: 6px; border-radius: 12px; }
  .btc-carte-nom { font-size: .9rem; }
  .btc-carte-texte { display: none; }
  .btc-hero { min-height: 300px; }
  .btc-etape h2, .btc-soumission h2 { font-size: 1.35rem; }
  .btc-fiche { grid-template-columns: 1fr; }
  .btc-fiche dt { border-bottom: 0; padding-bottom: 2px; }
  .btc-nav .btc-bouton { flex: 1; }
  .btc-etapes .btc-nom { display: none; }
  .btc-etapes button[aria-current="step"] .btc-nom { display: inline; }
}
@media (prefers-reduced-motion: reduce) {
  .btc *, .btc *::before, .btc *::after { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
  .btc .btc-carte:hover, .btc .btc-option:hover, .btc .btc-teinte:hover { transform: none; }
}