:root {
    --bg: #f4f6f9;
    --surface: #ffffff;
    --surface2: #eef1f6;
    --border: #dde2ec;
    --text: #1c2033;
    --muted: #8590aa;
    --accent: #1d4ed8;
    --green: #15803d;
    --green-light: rgba(21,128,61,.08);
    --red: #b91c1c;
    --orange: #d97706;
    --gold: #f59e0b;
  }

  * { margin:0; padding:0; box-sizing:border-box; }
  body { font-family:'Barlow',sans-serif; font-weight:300; background:var(--bg); color:var(--text); min-height:100vh; }

  /* HEADER */
  header {
    background:#fff;
    border-bottom:1px solid var(--border);
    padding:0 2rem;
    height:60px;
    display:flex; align-items:center; justify-content:space-between;
    position:sticky; top:0; z-index:1000;
    box-shadow:0 1px 4px rgba(0,0,0,.06);
  }
  .logo { font-family:'Barlow Condensed',sans-serif; font-weight:800; font-size:1.35rem; color:var(--accent); }
  .logo span { color:var(--text); }
  .header-right { font-size:.8rem; color:var(--muted); font-weight:300; }

  /* HERO */
  .hero {
    background:#fff;
    border-bottom:1px solid var(--border);
    padding:2.5rem 2rem 2rem;
    text-align:center;
  }
  .hero h1 { font-family:'Barlow Condensed',sans-serif; font-size:clamp(1.8rem,4vw,2.8rem); font-weight:800; line-height:1.1; margin-bottom:.5rem; }
  .hero h1 em { font-style:normal; color:var(--accent); }
  .hero p { color:var(--muted); font-size:.95rem; font-weight:300; margin-bottom:1.5rem; }

  /* SEARCH ZONE */
  .search-zone {
    display:flex; gap:.75rem; flex-wrap:wrap;
    justify-content:center; align-items:center;
    max-width:900px; margin:0 auto;
  }
  .search-left { display:flex; gap:.75rem; align-items:stretch; flex-wrap:wrap; justify-content:center; margin-top:-4px; }
  .search-right { display:flex; align-items:flex-start; flex-shrink:0; }
  .search-input-wrap { position:relative; flex:1; min-width:220px; max-width:340px; }
  .search-input-wrap input {
    width:100%;
    height:46px;
    padding:0 1rem 0 2.5rem;
    border:2px solid var(--accent);
    font-family:'Barlow',sans-serif; font-size:.95rem; font-weight:400;
    background:#fff; color:var(--text);
    outline:none; transition:border-color .2s, box-shadow .2s;
  }
  .search-input-wrap input:focus { border-color:var(--accent); box-shadow:0 0 0 3px rgba(29,78,216,.1); }
  .search-input-wrap input::placeholder { color:var(--muted); }
  .search-icon { position:absolute; left:.75rem; top:50%; transform:translateY(-50%); font-size:1rem; color:var(--muted); }
  .btn-autoroute-wrap {
    position:relative;
    display:inline-flex;
    align-items:stretch;
    border:2px solid #f59e0b;
    margin-top:-4px;
  }
  .btn-autoroute-wrap .btn-autoroute {
    border:none;
  }
  .autoroute-floating-label {
    position:absolute; top:-14px; left:.75rem;
    background:transparent; padding:0 .35rem;
    font-family:'Barlow Condensed',sans-serif; font-size:.68rem; font-weight:700;
    color:#f59e0b; letter-spacing:.06em; text-transform:uppercase;
    pointer-events:none; white-space:nowrap;
  }
  .btn-autoroute-wrap.active-wrap {
    border-color:#f59e0b;
  }
  .btn-autoroute-wrap.active-wrap .autoroute-floating-label {
    color:#f59e0b;
  }
  .search-floating-label {
    position:absolute; top:-11px; left:.75rem;
    background:#fff; padding:0 .35rem;
    font-family:'Barlow Condensed',sans-serif; font-size:.68rem; font-weight:700;
    color:var(--accent); letter-spacing:.06em; text-transform:uppercase;
    pointer-events:none; white-space:nowrap;
  }

  /* FUEL CHIPS */
  .fuel-chips { display:flex; gap:.4rem; flex-wrap:wrap; justify-content:center; }
  .fuel-chip {
    padding:.5rem 1rem;
    border:1px solid var(--border);
    background:#fff;
    font-family:'Barlow Condensed',sans-serif; font-weight:700; font-size:.9rem;
    cursor:pointer; transition:all .15s; color:var(--muted);
  }
  .fuel-chip:hover { border-color:var(--accent); color:var(--accent); }
  .fuel-chip.active { background:var(--accent); color:#fff; border-color:var(--accent); }

  .btn-geo {
    height:46px;
    padding:0 1.2rem;
    background:var(--surface2); border:1px solid var(--border);
    font-family:'Barlow Condensed',sans-serif; font-weight:700; font-size:.9rem;
    cursor:pointer; color:var(--text); transition:all .15s; white-space:nowrap;
    display:flex; align-items:center; gap:.4rem;
  }
  .btn-geo:hover { background:var(--border); }

  .btn-search {
    height:46px;
    padding:0 1.6rem;
    background:var(--accent); border:none; color:#fff;
    font-family:'Barlow Condensed',sans-serif; font-weight:700; font-size:1rem;
    cursor:pointer; transition:opacity .15s; white-space:nowrap;
    letter-spacing:.3px;
  }
  .btn-search:hover { opacity:.9; }

  /* MAIN LAYOUT */
  .main-layout {
    display:grid;
    grid-template-columns:380px 1fr;
    height:calc(100vh - 60px - 190px);
    min-height:500px;
  }

  /* LEFT PANEL */
  .left-panel { background:#fff; border-right:1px solid var(--border); display:flex; flex-direction:column; overflow:hidden; }

  .panel-header {
    padding:1rem 1.2rem;
    border-bottom:1px solid var(--border);
    background:var(--surface2);
    display:flex; align-items:center; justify-content:space-between;
    flex-shrink:0;
  }
  .panel-header h2 { font-family:'Barlow Condensed',sans-serif; font-weight:700; font-size:.95rem; }
  .result-count { font-size:.78rem; color:var(--muted); font-weight:300; }

  /* SORT BAR */
  .sort-bar {
    padding:.6rem 1.2rem;
    border-bottom:1px solid var(--border);
    display:flex; gap:.5rem; align-items:center; flex-shrink:0;
    flex-wrap:wrap;
  }
  .sort-label { font-size:.75rem; color:var(--muted); font-weight:400; }
  .sort-btn {
    padding:.25rem .7rem; font-size:.75rem; font-weight:600;
    border:1px solid var(--border); background:#fff;
    cursor:pointer; color:var(--muted); transition:all .15s;
  }
  .sort-btn.active { background:var(--text); color:#fff; border-color:var(--text); }

  /* STATIONS LIST */
  .stations-list { overflow-y:auto; flex:1; }

  .station-card {
    padding:1rem 1.2rem;
    border-bottom:1px solid var(--border);
    cursor:pointer; transition:background .15s;
    display:flex; gap:.75rem; align-items:flex-start;
  }
  .station-card:hover { background:#f8faff; }
  .station-card.selected { background:#eff6ff; border-left:3px solid var(--accent); }

  .station-rank {
    font-family:'Barlow Condensed',sans-serif; font-weight:800;
    font-size:1.1rem; color:var(--muted); width:22px; flex-shrink:0; margin-top:.1rem;
  }
  .station-rank.rank-1 { color:var(--green); }
  .station-rank.rank-2 { color:#16a34a; }
  .station-rank.rank-3 { color:#4ade80; }

  .station-info { flex:1; min-width:0; }
  .station-name { font-weight:700; font-size:.95rem; color:#1c2033; white-space:normal; word-break:break-word; }
  .station-addr { font-size:.78rem; color:var(--muted); font-weight:400; margin-top:.2rem; line-height:1.3; }
  .station-meta { display:flex; gap:.5rem; align-items:center; margin-top:.4rem; flex-wrap:wrap; }
  .station-dist { font-size:.72rem; background:var(--surface2); padding:.1rem .5rem; color:var(--muted); font-weight:400; }
  .station-update { font-size:.7rem; color:var(--muted); font-weight:300; }

  .station-price-main {
    font-family:'Barlow Condensed',sans-serif; font-weight:800;
    font-size:1.4rem; flex-shrink:0; text-align:right;
  }
  .station-price-main.price-cheap { color:var(--green); }
  .station-price-main.price-mid { color:var(--orange); }
  .station-price-main.price-exp { color:var(--red); }
  .price-unit { font-size:.72rem; font-weight:300; color:var(--muted); display:block; }

  /* ALL FUELS MINI */
  .all-fuels { display:flex; gap:.3rem; flex-wrap:wrap; margin-top:.3rem; }
  .fuel-mini { font-size:.68rem; font-weight:500; padding:.1rem .35rem; background:var(--surface2); color:var(--muted); }

  /* FUEL BADGES visibles */
  .fuel-badges { display:flex; gap:.25rem; flex-wrap:wrap; margin-top:.3rem; }
  .fuel-badge {
    font-family:'Barlow Condensed',sans-serif;
    font-size:.72rem; font-weight:700;
    padding:.15rem .45rem;
    border:1px solid;
    white-space:nowrap;
  }
  .fuel-badge.selected-fuel {
    font-size:.78rem;
    padding:.2rem .55rem;
  }

  /* SECTION HEADER itinéraires */
  .panel-section-header {
    padding:.55rem 1.2rem;
    border-bottom:1px solid #bfdbfe;
    border-top:3px solid var(--accent);
    font-family:'Barlow Condensed',sans-serif;
    font-weight:700; font-size:.85rem;
    color:var(--accent); letter-spacing:.04em;
    background:#eff6ff;
  }

  /* LOADING / EMPTY */
  .state-box { padding:3rem 1.5rem; text-align:center; color:var(--muted); }
  .state-box .icon { font-size:2.5rem; margin-bottom:.75rem; }
  .state-box p { font-size:.9rem; font-weight:300; line-height:1.6; }
  .spinner { width:36px; height:36px; border:3px solid var(--border); border-top-color:var(--accent); border-radius:50%; animation:spin .7s linear infinite; margin:0 auto 1rem; }
  @keyframes spin { to{transform:rotate(360deg)} }

  /* MAP */
  #map { width:100%; height:100%; }

  /* STATS BAR */
  .stats-bar {
    background:#fff; border-top:1px solid var(--border);
    padding:.75rem 1.5rem;
    display:flex; gap:2rem; flex-wrap:wrap; align-items:center;
  }
  .stats-bar-item { display:flex; flex-direction:column; }
  .stats-bar-label { font-size:.7rem; color:var(--muted); font-weight:500; text-transform:uppercase; letter-spacing:.05em; }
  .stats-bar-value { font-family:'Barlow Condensed',sans-serif; font-weight:800; font-size:1.1rem; }
  .stats-bar-value.green { color:var(--green); }
  .stats-bar-value.red { color:var(--red); }
  .stats-bar-value.blue { color:var(--accent); }

  /* POPUP */
  .leaflet-popup-content-wrapper { border-radius:0 !important; box-shadow:0 4px 20px rgba(0,0,0,.15) !important; }
  .popup-content { font-family:'Barlow',sans-serif; min-width:200px; }
  .popup-name { font-family:'Barlow Condensed',sans-serif; font-weight:700; font-size:1rem; margin-bottom:.3rem; white-space:normal; word-break:break-word; }
  .popup-addr { font-size:.8rem; color:#666; margin-bottom:.5rem; font-weight:300; }
  .popup-price { font-family:'Barlow Condensed',sans-serif; font-size:1.5rem; font-weight:800; }
  .popup-fuels { margin-top:.5rem; display:flex; gap:.3rem; flex-wrap:wrap; }
  .popup-fuel { font-size:.72rem; font-weight:500; padding:.15rem .4rem; background:#f0f2f5; }

  /* AUTOCOMPLETE */
  .autocomplete-box {
    position:absolute; top:100%; left:0; right:0;
    background:#fff; border:1px solid var(--border);
    border-top:none; z-index:999; max-height:220px; overflow-y:auto;
  }
  .autocomplete-item {
    padding:.65rem 1rem; font-size:.9rem; cursor:pointer;
    border-bottom:1px solid var(--surface2);
    display:flex; align-items:center; gap:.5rem;
    transition:background .1s;
  }
  .autocomplete-item:hover { background:#f0f4ff; }
  .autocomplete-item .city-icon { font-size:.85rem; }
  .autocomplete-item .city-name { font-weight:500; }
  .autocomplete-item .city-dept { font-size:.78rem; color:var(--muted); font-weight:300; }

  /* STATION ICON on map */
  .map-station-icon {
    display:flex; flex-direction:column; align-items:center;
    cursor:pointer;
  }
  .map-station-pin {
    font-family:'Barlow Condensed',sans-serif; font-weight:800;
    font-size:11px; padding:3px 6px 3px 6px;
    box-shadow:0 2px 8px rgba(0,0,0,.25);
    white-space:nowrap; color:white;
    border:2px solid rgba(255,255,255,.8);
    position:relative;
  }
  .map-station-pin::after {
    content:'';
    position:absolute; bottom:-7px; left:50%; transform:translateX(-50%);
    border-left:6px solid transparent;
    border-right:6px solid transparent;
    border-top-width:7px; border-top-style:solid;
  }
  .map-station-pin.pin-cheap::after { border-top-color:#15803d; }
  .map-station-pin.pin-mid::after   { border-top-color:#d97706; }
  .map-station-pin.pin-exp::after   { border-top-color:#b91c1c; }

  .btn-autoroute {
    padding:0; border:none; cursor:pointer;
    display:flex; align-items:stretch;
    font-family:'Barlow Condensed',sans-serif;
    overflow:hidden; transition:opacity .15s;
    background:#f59e0b;
  }
  .btn-autoroute:hover { background:#d97706; }
  .btn-autoroute img { height:40px; width:auto; display:block; flex-shrink:0; object-fit:contain; }
  .btn-autoroute-text {
    background:#f59e0b; color:white;
    padding:0 1rem; display:flex; flex-direction:column; justify-content:center;
    font-weight:700; font-size:.78rem; letter-spacing:.4px;
    text-align:left; line-height:1.3; white-space:nowrap;
  }
  .btn-autoroute:hover .btn-autoroute-text { background:#d97706; }
  .btn-autoroute.active, .btn-autoroute.active .btn-autoroute-text { background:#f59e0b; }
  #btnElectrique:hover, #btnElectrique:hover .btn-autoroute-text { background:#15803d; }
  #btnElectrique.active, #btnElectrique.active .btn-autoroute-text { background:#166534; }

  .direction-modal { display:none; position:fixed; top:0; left:0; width:100%; height:100%; background:rgba(0,0,0,.5); z-index:2000; align-items:center; justify-content:center; }
  .direction-modal.open { display:flex; }
  .direction-box { background:#fff; padding:2rem; max-width:420px; width:90%; box-shadow:0 10px 40px rgba(0,0,0,.3); }
  .direction-box h3 { font-family:'Barlow Condensed',sans-serif; font-weight:800; font-size:1.3rem; margin-bottom:.5rem; }
  .direction-box p { font-size:.85rem; color:#666; margin-bottom:1.5rem; font-weight:300; }
  .direction-grid { display:grid; grid-template-columns:1fr 1fr; gap:.75rem; margin-bottom:1rem; }
  .direction-btn { padding:1rem; border:2px solid #dde2ec; background:#f8faff; font-family:'Barlow Condensed',sans-serif; font-weight:700; font-size:1rem; cursor:pointer; transition:all .15s; text-align:center; }
  .direction-btn:hover { border-color:#1d4ed8; background:#eff6ff; color:#1d4ed8; }
  .direction-btn .dir-arrow { font-size:1.8rem; display:block; margin-bottom:.3rem; }
  .direction-cancel { width:100%; padding:.6rem; border:1px solid #dde2ec; background:#fff; font-family:'Barlow',sans-serif; font-size:.85rem; cursor:pointer; color:#666; }

  .autoroute-banner { display:none; background:#1d4ed8; color:white; padding:.6rem 1.5rem; font-size:.85rem; font-weight:500; align-items:center; gap:1rem; flex-wrap:wrap; }
  .autoroute-banner.show { display:flex; }
  .autoroute-banner strong { font-family:'Barlow Condensed',sans-serif; font-size:1rem; }
  .autoroute-banner button { background:rgba(255,255,255,.2); border:1px solid rgba(255,255,255,.4); color:white; padding:.25rem .75rem; font-size:.78rem; cursor:pointer; }
  .autoroute-banner button:hover { background:rgba(255,255,255,.3); }

  @media(max-width:768px) {
    .main-layout { grid-template-columns:1fr; grid-template-rows:50vh 50vh; }
    .hero { padding:1.5rem 1rem 1.5rem; }
    header { padding:0 1rem; }
    .search-zone { flex-direction:column; gap:.6rem; align-items:stretch; }
    .search-left { flex-direction:column; gap:.5rem; align-items:stretch; }
    .search-input-wrap { max-width:100%; min-width:0; }
    .btn-geo { width:100%; justify-content:center; }
    .mobile-action-row { display:flex; gap:.5rem; align-items:stretch; }
    .mobile-action-row .btn-search { flex:1; height:46px; }
    .mobile-action-row .btn-autoroute-wrap { flex:1; margin-top:0 !important; }
    .mobile-action-row .btn-autoroute { width:100%; justify-content:center; }
    .search-right { display:none !important; }
    .btn-search-desktop { display:none !important; }
  }
  @media(min-width:769px) {
    .mobile-action-row { display:none; }
    .btn-search-desktop { display:flex !important; }
  }

  /* PAGE DÉTAIL STATION (mobile plein écran) */
  #stationDetailPage {
    display:none;
    position:fixed;
    inset:0;
    z-index:3000;
    background:var(--bg);
    overflow-y:auto;
    -webkit-overflow-scrolling:touch;
  }
  #stationDetailPage.open { display:block; }

  .detail-header {
    position:sticky;
    top:0;
    z-index:10;
    background:#fff;
    border-bottom:1px solid var(--border);
    display:flex;
    align-items:center;
    gap:.75rem;
    padding:.85rem 1rem;
    box-shadow:0 1px 6px rgba(0,0,0,.07);
  }
  .detail-back-btn {
    background:none;
    border:none;
    font-size:1.5rem;
    cursor:pointer;
    line-height:1;
    padding:0 .25rem;
    color:var(--accent);
    flex-shrink:0;
  }
  .detail-header-title {
    font-family:'Barlow Condensed',sans-serif;
    font-weight:800;
    font-size:1.05rem;
    color:var(--text);
    flex:1;
    white-space:nowrap;
    overflow:hidden;
    text-overflow:ellipsis;
  }

  .detail-body { padding:1rem; display:flex; flex-direction:column; gap:1rem; }

  .detail-section {
    background:#fff;
    border:1px solid var(--border);
    border-radius:2px;
    padding:1rem;
  }
  .detail-section-title {
    font-family:'Barlow Condensed',sans-serif;
    font-weight:700;
    font-size:.78rem;
    color:var(--muted);
    text-transform:uppercase;
    letter-spacing:.06em;
    margin-bottom:.65rem;
  }

  .detail-name {
    font-family:'Barlow Condensed',sans-serif;
    font-weight:800;
    font-size:1.35rem;
    color:var(--text);
    margin-bottom:.3rem;
    line-height:1.2;
  }
  .detail-address {
    font-size:.9rem;
    color:var(--muted);
    font-weight:400;
    line-height:1.4;
  }
  .detail-meta-row {
    display:flex;
    gap:.5rem;
    flex-wrap:wrap;
    margin-top:.6rem;
  }
  .detail-meta-chip {
    font-size:.78rem;
    padding:.25rem .6rem;
    background:var(--surface2);
    color:var(--text);
    font-weight:500;
  }

  .detail-price-hero {
    display:flex;
    align-items:baseline;
    gap:.4rem;
    margin-bottom:.5rem;
  }
  .detail-price-big {
    font-family:'Barlow Condensed',sans-serif;
    font-weight:800;
    font-size:3rem;
    line-height:1;
  }
  .detail-price-unit {
    font-size:.95rem;
    color:var(--muted);
    font-weight:400;
  }
  .detail-price-label {
    font-size:.8rem;
    font-weight:700;
    padding:.2rem .55rem;
    border:1px solid;
    font-family:'Barlow Condensed',sans-serif;
    letter-spacing:.03em;
  }

  .detail-fuels-grid {
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:.5rem;
  }
  .detail-fuel-item {
    border:1px solid var(--border);
    padding:.6rem .75rem;
    display:flex;
    justify-content:space-between;
    align-items:center;
  }
  .detail-fuel-name {
    font-size:.82rem;
    font-weight:600;
    color:var(--text);
  }
  .detail-fuel-price {
    font-family:'Barlow Condensed',sans-serif;
    font-weight:800;
    font-size:1.05rem;
  }

  .detail-share-row {
    display:flex;
    gap:.6rem;
  }
  .detail-share-btn {
    flex:1;
    padding:.85rem .5rem;
    border:none;
    cursor:pointer;
    font-family:'Barlow Condensed',sans-serif;
    font-weight:700;
    font-size:1rem;
    display:flex;
    align-items:center;
    justify-content:center;
    gap:.4rem;
    letter-spacing:.3px;
  }
  .detail-nav-btn {
    flex:1;
    padding:.85rem .5rem;
    border:2px solid var(--accent);
    background:#fff;
    cursor:pointer;
    font-family:'Barlow Condensed',sans-serif;
    font-weight:700;
    font-size:1rem;
    color:var(--accent);
    display:flex;
    align-items:center;
    justify-content:center;
    gap:.4rem;
  }