/* ==========================================================================
   DIAA Devis Form — Theme aligned (DIAA Electrics look & feel)
   Replace the whole file with this.
   ========================================================================== */

/* ---------- Design tokens (ajuste ici si besoin) ---------- */
:root{
  --diaa-primary: #f59e0b;      /* orange CTA (proche du branding) */
  --diaa-primary-2: #fb923c;    /* orange clair (hover) */
  --diaa-dark: #0f172a;         /* bleu-noir texte */
  --diaa-muted: #64748b;        /* texte secondaire */
  --diaa-border: #e5e7eb;       /* bordures */
  --diaa-bg: #ffffff;           /* fond bloc */
  --diaa-soft: #f8fafc;         /* fond input/sections */
  --diaa-shadow: 0 16px 50px rgba(2, 6, 23, .10);
  --diaa-shadow-2: 0 10px 30px rgba(2, 6, 23, .08);
  --diaa-radius: 18px;
  --diaa-radius-sm: 12px;
  --diaa-ring: 0 0 0 4px rgba(245, 158, 11, .20);
}

/* ---------- Wrapper ---------- */
.diaa-form{
  max-width: 980px;
  margin: 28px auto;
  padding: 0 16px;
  color: var(--diaa-dark);
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, "Noto Sans", "Liberation Sans", sans-serif;
}

/* container "card" du formulaire */
.diaa-form-inner{
  background: var(--diaa-bg);
  border: 1px solid var(--diaa-border);
  border-radius: var(--diaa-radius);
  box-shadow: var(--diaa-shadow);
  padding: 22px;
}

/* ---------- Success alert ---------- */
.diaa-alert{
  border-radius: var(--diaa-radius-sm);
  padding: 14px 16px;
  margin: 0 0 14px 0;
  border: 1px solid var(--diaa-border);
  background: var(--diaa-soft);
  box-shadow: var(--diaa-shadow-2);
  display: flex;
  gap: 10px;
  align-items: center;
}
.diaa-alert-success{
  border-color: rgba(34,197,94,.25);
  background: rgba(34,197,94,.08);
}

/* ---------- Steps header (style "site CTA") ---------- */
.diaa-steps{
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin: 0 0 12px 0;
}

.diaa-step{
  appearance: none;
  border: 1px solid var(--diaa-border);
  background: #fff;
  color: var(--diaa-muted);
  border-radius: 999px;
  padding: 10px 14px;
  font-weight: 700;
  cursor: pointer;
  transition: transform .06s ease, background .2s ease, border-color .2s ease, color .2s ease;
}
.diaa-step i{ margin-right: 8px; color: var(--diaa-primary); }
.diaa-step:hover{ transform: translateY(-1px); border-color: rgba(245,158,11,.45); }
.diaa-step.is-active{
  background: rgba(245,158,11,.12);
  border-color: rgba(245,158,11,.45);
  color: var(--diaa-dark);
}

/* ---------- Panels ---------- */
.diaa-panel{ display:none; }
.diaa-panel.is-active{ display:block; }

.diaa-panel h3{
  margin: 10px 0 6px 0;
  font-size: 28px;         /* style "hero section" */
  line-height: 1.15;
  letter-spacing: -0.02em;
}
.diaa-muted{
  margin: 0 0 14px 0;
  color: var(--diaa-muted);
  font-size: 15px;
}

/* ---------- Fields ---------- */
.diaa-field{
  display:block;
  margin: 12px 0;
}
.diaa-label{
  display:block;
  font-weight: 800;
  font-size: 13px;
  color: var(--diaa-dark);
  margin: 0 0 8px 0;
}

.diaa-field input,
.diaa-field textarea,
.diaa-field select{
  width: 100%;
  border: 1px solid var(--diaa-border);
  background: var(--diaa-soft);
  border-radius: var(--diaa-radius-sm);
  padding: 12px 12px;
  font-size: 15px;
  color: var(--diaa-dark);
  outline: none;
  transition: box-shadow .2s ease, border-color .2s ease, background .2s ease;
}
.diaa-field textarea{ resize: vertical; min-height: 92px; }
.diaa-field input:focus,
.diaa-field textarea:focus,
.diaa-field select:focus{
  border-color: rgba(245,158,11,.70);
  box-shadow: var(--diaa-ring);
  background: #fff;
}

.diaa-grid-2{
  display:grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}
@media (max-width: 740px){
  .diaa-grid-2{ grid-template-columns: 1fr; }
  .diaa-panel h3{ font-size: 22px; }
  .diaa-form-inner{ padding: 16px; }
}

/* ---------- Toggle (Step 3) ---------- */
.diaa-toggle{
  display:flex;
  align-items:center;
  gap: 10px;
  margin: 10px 0 0 0;
  padding: 12px;
  border: 1px dashed rgba(100,116,139,.35);
  border-radius: var(--diaa-radius-sm);
  background: rgba(248,250,252,.9);
}
.diaa-toggle input{ width: 18px; height: 18px; }
.diaa-toggle span{ color: var(--diaa-dark); font-weight: 700; }

/* ---------- Choice cards (Step 1 + Step 4) ---------- */
.diaa-choice-grid{
  display:grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin: 10px 0 6px 0;
}
@media (max-width: 980px){
  .diaa-choice-grid{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 520px){
  .diaa-choice-grid{ grid-template-columns: 1fr; }
}

.diaa-choice{ position: relative; }
.diaa-choice-input{
  position:absolute;
  opacity:0;
  pointer-events:none;
}

.diaa-choice-card{
  display:flex;
  gap: 12px;
  align-items:flex-start;
  padding: 14px 14px;
  border: 1px solid var(--diaa-border);
  border-radius: var(--diaa-radius);
  background: #fff;
  box-shadow: 0 8px 24px rgba(2, 6, 23, .06);
  cursor:pointer;
  transition: transform .06s ease, box-shadow .2s ease, border-color .2s ease;
  min-height: 90px;
}
.diaa-choice-card:hover{
  transform: translateY(-1px);
  border-color: rgba(245,158,11,.35);
  box-shadow: 0 12px 28px rgba(2, 6, 23, .10);
}
.diaa-choice-icon{
  width: 42px;
  height: 42px;
  border-radius: 14px;
  display:flex;
  align-items:center;
  justify-content:center;
  background: rgba(245,158,11,.14);
  color: var(--diaa-primary);
  flex: 0 0 auto;
  font-size: 18px;
}
.diaa-choice-text{ flex: 1 1 auto; }
.diaa-choice-title{
  font-weight: 900;
  font-size: 15px;
  margin: 2px 0 3px 0;
}
.diaa-choice-sub{
  color: var(--diaa-muted);
  font-size: 13px;
  line-height: 1.25;
}

/* checked state */
.diaa-choice-input:checked + .diaa-choice-card{
  border-color: rgba(245,158,11,.70);
  box-shadow: var(--diaa-ring), 0 12px 28px rgba(2, 6, 23, .10);
}
.diaa-choice-input:checked + .diaa-choice-card .diaa-choice-icon{
  background: var(--diaa-primary);
  color: #fff;
}

/* ---------- Errors ---------- */
.diaa-error{
  margin-top: 8px;
  color:#b91c1c;
  font-weight:800;
  font-size: 13px;
}

.diaa-step-error{
  display:none;
  margin-top:10px;
  color:#b91c1c;
  font-weight:900;
}
.diaa-step-error.is-visible{ display:block; }

/* invalid ring */
.diaa-invalid{
  border-color:#b91c1c !important;
  box-shadow:0 0 0 4px rgba(185,28,28,.12) !important;
}
.diaa-choice-input.diaa-invalid + .diaa-choice-card{
  border-color:#b91c1c !important;
  box-shadow:0 0 0 4px rgba(185,28,28,.10) !important;
}

/* ---------- Nav buttons (CTA style) ---------- */
.diaa-nav{
  display:flex;
  justify-content: space-between;
  align-items:center;
  gap: 12px;
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid rgba(229,231,235,.9);
}

.diaa-prev,
.diaa-next,
.diaa-submit{
  appearance:none;
  border: 1px solid var(--diaa-border);
  border-radius: 999px;
  padding: 12px 16px;
  font-weight: 900;
  cursor:pointer;
  transition: transform .06s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
  display:inline-flex;
  align-items:center;
  gap: 10px;
  white-space: nowrap;
}

/* prev = neutre */
.diaa-prev{
  background: #fff;
  color: var(--diaa-dark);
}
.diaa-prev:hover{
  transform: translateY(-1px);
  border-color: rgba(15,23,42,.25);
  box-shadow: 0 10px 24px rgba(2, 6, 23, .08);
}

/* next/submit = CTA orange (like "Demander un devis") */
.diaa-next,
.diaa-submit{
  background: linear-gradient(135deg, var(--diaa-primary), var(--diaa-primary-2));
  border-color: rgba(245,158,11,.55);
  color:#111827;
}
.diaa-next:hover,
.diaa-submit:hover{
  transform: translateY(-1px);
  box-shadow: 0 16px 36px rgba(245,158,11,.22);
}

/* smaller screens: stack buttons */
@media (max-width: 520px){
  .diaa-nav{ flex-direction: column; align-items: stretch; }
  .diaa-prev, .diaa-next, .diaa-submit{ width: 100%; justify-content: center; }
}