/* =========================
   Thème Frontaliers (V12+)
   Bleu foncé → Blanc → Rouge foncé
   ========================= */

:root{
  --blue:#002080;           /* bleu plus foncé */
  --blue-100:#EEF4FF;
  --red:#990000;            /* rouge plus foncé */
  --red-700:#660000;
  --text:#0f172a;
  --muted:#6b7280;
  --ok:#10b981;
  --card:#ffffff;
  --radius:14px;
  --shadow:0 2px 8px rgba(0,0,0,.08);
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family: Arial, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  background:#f7f8fb;
  color:var(--text);
}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}

.container{max-width:1100px;margin:0 auto;padding:0 16px}

/* ===== Header / Nav ===== */
.header-grad{
  background:linear-gradient(90deg,#002080 0%,#ffffff 50%,#990000 100%);
  color:#111;
}
.nav{
  display:flex;align-items:center;justify-content:space-between;
  gap:14px;padding:12px 0
}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;color:#111}
.brand img{height:28px}
.nav-right{display:flex;gap:14px;align-items:center;margin-left:auto}

/* ===== Boutons ===== */
.btn{
  border:none;border-radius:999px;padding:10px 16px;
  font-weight:800;cursor:pointer;font-size:14px;box-shadow:var(--shadow)
}
.btn-primary{background:var(--red);color:#fff;border:2px solid var(--red-700)}
.btn-ghost{background:#fff;color:var(--blue);border:2px solid var(--blue)}
.btn:disabled{opacity:.6;cursor:not-allowed}

/* ===== Hero / Cards ===== */
.hero{padding:36px 0}
.hero-inner{
  background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);
  padding:24px;border:1px solid rgba(0,0,0,.06);
  display:grid;grid-template-columns:1.2fr 0.8fr;gap:18px
}
.hero h1{margin:0 0 10px 0;font-size:32px}
.hero p{margin:0 0 16px 0;color:#374151}
.cta{display:flex;gap:10px;flex-wrap:wrap}

.card{
  background:#fff;border-radius:var(--radius);padding:18px;
  border:1px solid rgba(0,0,0,.06);box-shadow:var(--shadow)
}

.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media (max-width:900px){
  .hero-inner{grid-template-columns:1fr}
  .grid-3{grid-template-columns:1fr}
}

/* ===== Sections ===== */
.section{padding:24px 0}
.section h2{margin:0 0 10px 0}
.list-check{list-style:none;padding:0;margin:0}
.list-check li{margin:8px 0;padding-left:26px;position:relative}
.list-check li:before{content:"✓";position:absolute;left:0;color:var(--ok);font-weight:900}

/* ===== Main / Form Wizard ===== */
.main{padding:20px 0}
.hdr{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.hdr h1{margin:0}

.stepper{
  display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-top:6px
}
.step{
  padding:10px 12px;border-radius:999px;text-align:center;
  font-weight:800;font-size:14px;background:var(--blue-100);color:#1f2937;border:2px solid transparent
}
.step.active{background:var(--red);color:#fff}

/* ===== Pages & Form Fields ===== */
.page{
  background:#fff;border-radius:var(--radius);padding:18px;
  border:1px solid rgba(0,0,0,.06);box-shadow:var(--shadow)
}
.row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media (max-width:760px){.row{grid-template-columns:1fr}}

.field{display:flex;flex-direction:column}
label{font-size:13px;color:var(--muted);margin:6px 0 4px}

input,select,textarea{
  width:100%;padding:10px;border-radius:10px;border:1px solid #d9dde7;
  background:#fff;font-size:14px
}
textarea{min-height:90px}
input:focus,select:focus,textarea:focus{
  outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(0,32,128,.12)
}

.help{font-size:12px;color:var(--muted);margin-top:4px}

/* ===== Multi-select (ancienne version à cases déroulantes) =====
   Laisse fermé par défaut et au-dessus du contenu */
.multiselect{position:relative}
.multiselect .ms-control{width:100%;text-align:left;display:flex;align-items:center;gap:.5rem;
  padding:.65rem .8rem;border:1px solid #d9dde7;border-radius:10px;background:#fff;cursor:pointer}
.multiselect .ms-placeholder{color:#8a93a3}
.multiselect .ms-badges{display:flex;gap:.35rem;flex-wrap:wrap}
.multiselect .ms-badge{font-size:.82rem;padding:.15rem .5rem;border-radius:999px;background:#eef2ff}
.multiselect .ms-dropdown{
  display:none;position:absolute;left:0;right:0;top:calc(100% + 6px);
  background:#fff;border:1px solid #e6e9ef;border-radius:10px;padding:8px;
  box-shadow:0 10px 24px rgba(16,24,40,.12);z-index:9999;max-height:220px;overflow:auto
}
.multiselect.open .ms-dropdown{display:block}
.multiselect .ms-option{display:flex;align-items:center;gap:.5rem;padding:.35rem .2rem;cursor:pointer}

/* ===== Actions / Summary / Chart ===== */
.actions{display:flex;gap:10px;justify-content:space-between;align-items:center;margin-top:12px;flex-wrap:wrap}
.summary{padding:12px;border:1px solid #eee;border-radius:10px;margin-top:12px;background:#fff}
.green{color:var(--ok);font-weight:800}
.chart-wrap{display:flex;justify-content:center}
#chart{max-width:220px;max-height:220px}

/* ===== Footer ===== */
footer{margin-top:26px;font-size:12px;color:#6b7280;background:#fff;box-shadow:0 -2px 10px rgba(0,0,0,.06)}
footer .foot{padding:10px 0;line-height:1.4}
footer a{color:#6b7280}

/* ===== Responsive ===== */
@media (max-width:900px){
  .stepper{grid-template-columns:repeat(5,minmax(120px,1fr));overflow:auto;gap:8px;scroll-snap-type:x mandatory}
  .step{scroll-snap-align:start;white-space:nowrap;font-size:13px;padding:10px 12px}
}
@media (max-width:640px){
  .btn{width:100%;padding:12px 14px}
  #chart{max-width:160px;max-height:160px}
  body{padding-bottom:110px}
  footer{font-size:10px;padding:8px}
}
@media (max-width:420px){
  .hero h1{font-size:24px}
  .btn{padding:11px 12px;font-size:14px}
  #chart{max-width:150px;max-height:150px}
}