:root{
  --ev-bg:#f3f1ee;
  --ev-card:#ffffff;
  --ev-ink:#23211f;
  --ev-muted:#69625f;
  --ev-line:#ddd5cd;
  --ev-dark:#182126;
  --ev-dark-2:#10251b;
  --ev-green:#18b45b;
  --ev-green-2:#42df74;
  --ev-green-soft:#e8f6ee;
  --ev-blue:#2c7b98;
  --ev-gold:#f0c040;
  --ev-red:#e0574f;
  --ev-shadow:0 14px 36px rgba(0,0,0,.08);
  --ev-shadow-dark:0 24px 60px rgba(0,0,0,.22);
  --ev-r-xl:28px;
  --ev-r-lg:20px;
  --ev-r-md:14px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--ev-bg);color:var(--ev-ink);font-family:Inter,Segoe UI,Arial,sans-serif}
button,input,select,textarea{font:inherit}
.ev-app{max-width:1240px;margin:0 auto;padding:16px}
.ev-hero{background:linear-gradient(145deg,#131e22 0%, #1b2b31 55%, #0e171b 100%);border-radius:var(--ev-r-xl);padding:28px;box-shadow:var(--ev-shadow-dark);color:#fff;position:relative;overflow:hidden}
.ev-hero::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 16% 24%, rgba(24,180,91,.14) 0 90px, transparent 92px), radial-gradient(circle at 88% 14%, rgba(66,223,116,.10) 0 100px, transparent 102px)}
.ev-hero__inner{position:relative;z-index:1;display:flex;justify-content:space-between;gap:18px;align-items:flex-start;flex-wrap:wrap}
.ev-brand{display:flex;gap:14px;align-items:flex-start;max-width:760px}
.ev-brand__icon{width:64px;height:64px;flex:0 0 64px;border-radius:18px;background:rgba(24,180,91,.12);border:1px solid rgba(24,180,91,.22);display:grid;place-items:center;padding:8px}
.ev-brand__icon svg{width:100%;height:100%}
.ev-pill,.ev-chip{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border-radius:999px;font-size:12px;font-weight:800}
.ev-pill{background:rgba(24,180,91,.15);border:1px solid rgba(24,180,91,.24);color:#8cf6b6;margin-bottom:10px}
.ev-brand h1{margin:0;font-size:clamp(28px,5vw,46px);line-height:1;letter-spacing:-.04em}
.ev-brand p{margin:10px 0 0;color:rgba(255,255,255,.78);line-height:1.65;font-size:15px}
.ev-hero__stats{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;min-width:300px;background:rgba(255,255,255,.10);border-radius:18px;overflow:hidden}
.ev-stat{background:rgba(255,255,255,.06);padding:18px 12px;text-align:center}
.ev-stat strong{display:block;font-size:24px;font-weight:900;color:var(--ev-green-2)}
.ev-stat span{display:block;margin-top:4px;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:rgba(255,255,255,.58)}
.ev-main{margin-top:16px}
.ev-topbar,.ev-progress,.ev-panel{background:var(--ev-card);border:1px solid var(--ev-line);box-shadow:var(--ev-shadow)}
.ev-topbar{border-radius:22px;padding:14px 16px;display:flex;justify-content:space-between;gap:12px;align-items:flex-start;flex-wrap:wrap}
.ev-topbar__title{font-size:16px;font-weight:900}
.ev-topbar__subtitle{font-size:13px;color:var(--ev-muted);margin-top:4px}
.ev-chip--soft{background:#f8fbf9;border:1px solid var(--ev-line)}
.ev-progress{margin-top:12px;border-radius:22px;padding:14px}
.ev-progress__bar{height:8px;background:#edf4f0;border-radius:999px;overflow:hidden;margin-bottom:12px}
.ev-progress__fill{height:100%;width:20%;background:linear-gradient(90deg,var(--ev-green),var(--ev-green-2));transition:width .25s ease}
.ev-steps{display:grid;grid-template-columns:repeat(5,1fr);gap:8px}
.ev-step{background:#fff;border:1px solid var(--ev-line);border-radius:16px;padding:10px;display:flex;gap:10px;align-items:flex-start;cursor:pointer;min-height:76px;transition:.18s ease}
.ev-step.is-active{background:var(--ev-green-soft);border-color:#bae7c7}
.ev-step.is-done{background:#f8fcfa}
.ev-step__n{width:24px;height:24px;border-radius:50%;background:#edf4f0;color:var(--ev-muted);display:grid;place-items:center;font-size:12px;font-weight:900;flex:0 0 24px}
.ev-step.is-active .ev-step__n,.ev-step.is-done .ev-step__n{background:var(--ev-green);color:#fff}
.ev-step b{display:block;font-size:13px;line-height:1.2}
.ev-step span{display:block;margin-top:2px;font-size:11px;color:var(--ev-muted);line-height:1.35}
.ev-panels{margin-top:12px;display:grid;gap:12px}
.ev-panel{border-radius:24px;padding:18px;display:none}
.ev-panel.is-active{display:block}
.ev-panel__head{display:flex;justify-content:space-between;gap:12px;align-items:flex-start;flex-wrap:wrap;margin-bottom:16px}
.ev-eyebrow{font-size:11px;font-weight:900;letter-spacing:.08em;text-transform:uppercase;color:var(--ev-muted);margin-bottom:6px}
.ev-title{font-size:26px;font-weight:900;line-height:1.04;letter-spacing:-.03em;margin:0}
.ev-grid{display:grid;gap:12px}
.ev-grid.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.ev-grid.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.ev-field{display:grid;gap:6px;min-width:0}
.ev-field label{font-size:12px;font-weight:800}
.ev-hint{font-size:11px;color:var(--ev-muted);line-height:1.45}
.ev-input,.ev-select,.ev-textarea{width:100%;min-height:48px;border-radius:16px;border:1.5px solid var(--ev-line);background:#f8fbf9;color:var(--ev-ink);padding:12px 13px;outline:none}
.ev-textarea{min-height:120px;resize:vertical}
.ev-input:focus,.ev-select:focus,.ev-textarea:focus{background:#fff;border-color:#9ee0ba;box-shadow:0 0 0 4px rgba(29,207,122,.10)}
.ev-checks{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.ev-check{display:flex;gap:10px;align-items:flex-start;padding:12px;border:1px solid var(--ev-line);border-radius:16px;background:#f8fbf9}
.ev-check input{margin-top:3px}
.ev-card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.ev-mini{padding:14px;border:1px solid var(--ev-line);border-radius:18px;background:#f8fbf9}
.ev-mini b{display:block;font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--ev-muted);margin-bottom:6px}
.ev-mini span{display:block;font-size:22px;font-weight:900;line-height:1.1}
.ev-kpis{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}
.ev-kpi{padding:14px;border:1px solid var(--ev-line);border-radius:18px;background:#f8fbf9}
.ev-kpi strong{display:block;font-size:11px;letter-spacing:.07em;text-transform:uppercase;color:var(--ev-muted);margin-bottom:6px}
.ev-kpi span{display:block;font-size:20px;font-weight:900}
.ev-score{width:160px;height:160px;border-radius:50%;display:grid;place-items:center;background:radial-gradient(closest-side,#10251b 74%,transparent 75% 100%),conic-gradient(var(--ev-green-2) 0 var(--score,72%), rgba(255,255,255,.12) 0);margin:0 auto}
.ev-score__inner{text-align:center;color:#fff}
.ev-score__inner strong{display:block;font-size:48px;font-weight:900}
.ev-score__inner span{display:block;font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:rgba(255,255,255,.72)}
.ev-results-hero{display:grid;grid-template-columns:280px 1fr;gap:14px;align-items:start}
.ev-dark-card{background:linear-gradient(145deg,var(--ev-dark),var(--ev-dark-2));border:1px solid rgba(255,255,255,.08);border-radius:24px;padding:18px;color:#fff;box-shadow:var(--ev-shadow-dark)}
.ev-list{display:grid;gap:10px}
.ev-list__item{display:flex;gap:10px;align-items:flex-start;border:1px solid var(--ev-line);background:#f8fbf9;border-radius:16px;padding:12px}
.ev-rank{width:26px;height:26px;border-radius:50%;background:var(--ev-green-soft);color:var(--ev-dark-2);display:grid;place-items:center;font-size:12px;font-weight:900;flex:0 0 26px}
.ev-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}
.ev-btn{border:none;border-radius:16px;padding:12px 16px;min-height:48px;font-weight:900;cursor:pointer}
.ev-btn--primary{background:var(--ev-green);color:#fff}
.ev-btn--dark{background:var(--ev-dark);color:#fff}
.ev-btn--light{background:#fff;color:var(--ev-ink);border:1px solid var(--ev-line)}
.ev-toast{position:fixed;left:50%;bottom:18px;transform:translateX(-50%);background:#153126;color:#fff;padding:12px 16px;border-radius:14px;display:none;z-index:1000;box-shadow:0 12px 30px rgba(16,37,27,.22)}
@media (max-width:980px){.ev-steps,.ev-grid.g2,.ev-grid.g3,.ev-card-grid,.ev-kpis,.ev-checks,.ev-results-hero{grid-template-columns:1fr}}
@media (max-width:720px){.ev-app{padding:10px}.ev-hero{padding:18px;border-radius:22px}.ev-brand{flex-direction:column}.ev-hero__stats{min-width:100%}.ev-actions{flex-direction:column}.ev-btn{width:100%}}

/* ── Améliorations v6.0 ─────────────────────────────────────────────────── */

/* Toast non-bloquant */
.ev-toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%) translateY(12px);
  background: #153126;
  color: #fff;
  padding: 13px 20px;
  border-radius: 14px;
  font-size: 14px;
  font-weight: 700;
  z-index: 9999;
  box-shadow: 0 12px 30px rgba(16,37,27,.3);
  opacity: 0;
  pointer-events: none;
  transition: opacity .22s ease, transform .22s ease;
  white-space: nowrap;
}
.ev-toast.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
  pointer-events: auto;
}
.ev-toast[data-type="error"] { background: #8b1a15; }
.ev-toast[data-type="success"] { background: #153126; }

/* Badges */
.ev-badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 9px;
  border-radius: 99px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .04em;
}
.ev-badge--green  { background: var(--ev-green-soft); color: #127a3c; border: 1px solid #bae7c7; }
.ev-badge--blue   { background: #e8f2f6; color: #1e5e77; border: 1px solid #c0dce8; }
.ev-badge--muted  { background: #f0ede9; color: var(--ev-muted); border: 1px solid var(--ev-line); }

/* Champs requis */
.ev-required { color: var(--ev-red); }

/* États de validation des inputs */
.ev-input--error { border-color: var(--ev-red) !important; background: #fdf3f2 !important; }
.ev-input--ok    { border-color: #9ee0ba !important; }
.ev-check--error { border-color: var(--ev-red) !important; background: #fdf3f2 !important; }
.ev-check--dark  { background: rgba(255,255,255,.07); border-color: rgba(255,255,255,.14); }
.ev-check--dark span { color: rgba(255,255,255,.8); }

/* KPI dark (dans les dark-cards) */
.ev-kpi--dark {
  background: rgba(255,255,255,.08);
  border-color: rgba(255,255,255,.12);
}
.ev-kpi--dark strong { color: rgba(255,255,255,.6); }
.ev-kpi--dark span   { color: #fff; }

/* Comparatif scénarios */
.ev-scenario-compare { display: grid; gap: 12px; }
.ev-scenario-block {
  padding: 14px 16px;
  background: #f8fbf9;
  border: 1px solid var(--ev-line);
  border-radius: 16px;
}
.ev-scenario-name {
  font-size: 13px;
  font-weight: 900;
  margin-bottom: 10px;
  letter-spacing: .03em;
}
.ev-bar-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}
.ev-bar-label { font-size: 11px; color: var(--ev-muted); width: 90px; flex: 0 0 90px; }
.ev-bar-track {
  flex: 1;
  height: 8px;
  background: #e8ede9;
  border-radius: 99px;
  overflow: hidden;
}
.ev-bar-fill {
  height: 100%;
  border-radius: 99px;
  transition: width .35s ease;
}
.ev-bar-value { font-size: 11px; font-weight: 700; width: 80px; text-align: right; }
.ev-scenario-roi { font-size: 12px; color: var(--ev-muted); margin-top: 8px; }
.ev-scenario-roi strong { color: var(--ev-ink); }

/* Étapes visitées — curseur par défaut pour les étapes futures */
.ev-step:not(.is-active):not(.is-done) { opacity: .6; cursor: default; }
.ev-step.is-done { cursor: pointer; }

/* Scroll smooth vers le wizard */
html { scroll-behavior: smooth; }

@media (max-width: 980px) {
  .ev-scenario-compare { grid-template-columns: 1fr; }
}

/* ── Grille 4 colonnes ── */
.ev-grid.g4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 980px) {
  .ev-grid.g4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 680px) {
  .ev-grid.g4 { grid-template-columns: 1fr; }
}

/* ── Onglets site (étapes 3 & 4) ────────────────────────────────────────── */
.ev-site-tabs {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  align-items: center;
  padding: 8px;
  background: #f0f5f2;
  border: 1px solid var(--ev-line);
  border-radius: 18px;
}

.ev-site-tab {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border: 1.5px solid var(--ev-line);
  border-radius: 12px;
  background: #fff;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: all .15s ease;
  color: var(--ev-ink);
  position: relative;
}

.ev-site-tab:hover {
  border-color: #9ee0ba;
  background: var(--ev-green-soft);
}

.ev-site-tab.is-active {
  background: var(--ev-green-soft);
  border-color: #18b45b;
  color: #0e2b1a;
}

.ev-site-tab.is-active .ev-site-tab__dot {
  background: #18b45b;
}

.ev-site-tab__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #c8d8cc;
  flex: 0 0 8px;
  transition: background .15s;
}

.ev-site-tab__name {
  max-width: 120px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ev-site-tab__remove {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: rgba(0,0,0,.08);
  font-size: 13px;
  line-height: 1;
  color: #666;
  cursor: pointer;
  margin-left: 2px;
  transition: background .12s;
}

.ev-site-tab__remove:hover {
  background: #e0574f;
  color: #fff;
}

.ev-site-tab--add {
  background: transparent;
  border-style: dashed;
  border-color: #9ee0ba;
  color: #18b45b;
  font-weight: 800;
}

.ev-site-tab--add:hover {
  background: var(--ev-green-soft);
}

/* ── Section box (groupes dans panel 4) ─────────────────────────────────── */
.ev-section-box {
  border: 1px solid var(--ev-line);
  border-radius: 18px;
  padding: 14px;
  background: #f8fbf9;
  margin-bottom: 12px;
}

.ev-section-box__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 10px;
}

.ev-section-box h4 {
  font-size: 15px;
  font-weight: 900;
  margin: 0;
}

/* Indicateur de complétion dans le chip header */
.ev-panel__head .ev-chip.ev-chip--soft {
  max-width: 160px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

@media (max-width: 680px) {
  .ev-site-tabs { flex-direction: column; align-items: stretch; }
  .ev-site-tab  { justify-content: center; }
}

/* ── Scénario cards (étape 4) ───────────────────────────────────────────── */
.ev-scenario-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.ev-scenario-card {
  border: 1.5px solid var(--ev-line);
  border-radius: 14px;
  padding: 13px;
  background: #f8fbf9;
  cursor: pointer;
  transition: all .15s ease;
  display: block;
}

.ev-scenario-card:hover {
  border-color: #9ee0ba;
  background: var(--ev-green-soft);
}

.ev-scenario-card.is-active {
  border-color: var(--ev-green);
  background: var(--ev-green-soft);
  box-shadow: 0 0 0 3px rgba(24,180,91,.12);
}

.ev-scenario-card__head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 6px;
}

.ev-scenario-card__head strong { font-size: 13px; font-weight: 900; }

.ev-scenario-card__tags {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.ev-tag {
  font-size: 9px;
  font-weight: 800;
  padding: 2px 6px;
  border-radius: 99px;
  background: rgba(24,180,91,.12);
  color: #0e2b1a;
  border: 1px solid rgba(24,180,91,.25);
  white-space: nowrap;
}

.ev-scenario-card__desc {
  font-size: 11px;
  color: var(--ev-muted);
  line-height: 1.4;
  margin-bottom: 8px;
}

.ev-scenario-card__mults {
  display: flex;
  gap: 8px;
  font-size: 10px;
  font-weight: 800;
  color: var(--ev-muted);
}

.ev-scenario-card.is-active .ev-scenario-card__mults { color: #0e2b1a; }

/* ── Comparatif scénarios dans résultats ───────────────────────────────── */
.ev-scenario-compare-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 12px 0;
}

.ev-scenario-compare-card {
  border: 1.5px solid var(--ev-line);
  border-radius: 16px;
  padding: 14px;
  background: #f8fbf9;
}

.ev-scenario-compare-card.is-active {
  border-color: var(--ev-green);
  background: var(--ev-green-soft);
}

.ev-scenario-compare-card__label {
  font-size: 11px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--ev-muted);
  margin-bottom: 4px;
}

.ev-scenario-compare-card__name {
  font-size: 14px;
  font-weight: 900;
  margin-bottom: 10px;
}

.ev-scenario-bar-row {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-bottom: 6px;
}

.ev-scenario-bar-lbl { font-size: 10px; color: var(--ev-muted); width: 80px; flex-shrink: 0; }
.ev-scenario-bar-track { flex: 1; height: 7px; background: #ddeee6; border-radius: 99px; overflow: hidden; }
.ev-scenario-bar-fill  { height: 100%; border-radius: 99px; background: var(--ev-green); }
.ev-scenario-bar-val   { font-size: 10px; font-weight: 800; width: 58px; text-align: right; color: var(--ev-ink); }

@media (max-width: 680px) {
  .ev-scenario-row,
  .ev-scenario-compare-grid { grid-template-columns: 1fr; }
}

/* ── Formulaire thermique ────────────────────────────────────────────────── */
.ev-thermal-form__header {
  margin-bottom: 14px;
}
.ev-thermal-form__header .ev-hint {
  margin-top: 4px;
  font-size: 12px;
}

.ev-thermal-block {
  border: 1px solid var(--ev-line);
  border-radius: 16px;
  padding: 14px;
  background: #f8fbf9;
  margin-bottom: 10px;
}

.ev-thermal-block__head {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.ev-thermal-block__icon {
  font-size: 18px;
  line-height: 1;
}

.ev-thermal-block__head strong {
  font-size: 14px;
  font-weight: 900;
  flex: 1;
}

.ev-thermal-block__badge {
  margin-left: auto;
}

/* Mode selector */
.ev-thermal-mode-row {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.ev-thermal-mode-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  border: 1.5px solid var(--ev-line);
  border-radius: 10px;
  background: #fff;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  transition: all .14s ease;
}

.ev-thermal-mode-btn:hover {
  border-color: #9ee0ba;
  background: var(--ev-green-soft);
}

.ev-thermal-mode-btn.is-active {
  border-color: var(--ev-green);
  background: var(--ev-green-soft);
  color: #0e2b1a;
}

.ev-thermal-result {
  margin-top: 8px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.ev-hidden { display: none !important; }

/* Tabs avant/après dans les panels 3 et 4 */
.ev-phase-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.ev-phase-tab {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 9px 16px;
  border: 1.5px solid var(--ev-line);
  border-radius: 12px;
  background: #fff;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: all .14s ease;
}

.ev-phase-tab:hover { border-color: #9ee0ba; background: var(--ev-green-soft); }

.ev-phase-tab.is-active {
  background: var(--ev-dark);
  border-color: var(--ev-dark);
  color: #fff;
}

.ev-phase-tab.is-active.is-after {
  background: var(--ev-green);
  border-color: var(--ev-green);
}

@media (max-width: 680px) {
  .ev-thermal-mode-row { flex-direction: column; }
  .ev-phase-tabs { flex-direction: column; }
}

/* ── Messages d'erreur inline sous les champs ───────────────────────────── */
.ev-field-error {
  font-size: 11px;
  color: #e34b4b;
  margin-top: 4px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 4px;
}

.ev-field-error::before {
  content: '⚠';
  font-size: 10px;
}