.fr-app{
  --fr-bg:#155e46;
  --fr-bg2:#0e4433;
  --fr-ink:#0e2a20;
  --fr-panel:rgba(255,255,255,.94);
  --fr-line:rgba(14,42,32,.16);
  --fr-shadow:0 14px 40px rgba(0,20,12,.22);
  --fr-radius:22px;
  --fr-c1:#2d9cdb;
  --fr-c2:#eb5757;
  --fr-c3:#27ae60;
  --fr-c4:#f2c94c;
}
.fr-app *{box-sizing:border-box}
.fr-app{
  width:min(100%,760px);
  margin:0 auto;
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  background:linear-gradient(160deg,var(--fr-bg),var(--fr-bg2));
  color:var(--fr-ink);
  border-radius:28px;
  box-shadow:var(--fr-shadow);
  padding:18px 18px 26px;
}
.fr-app button{font:inherit}
.fr-app .top{display:flex;align-items:center;justify-content:space-between;gap:12px;color:#fff;margin:4px 2px 14px}
.fr-app .brand{display:flex;align-items:baseline;gap:10px}
.fr-app .brand h1{margin:0;font-size:clamp(1.6rem,6vw,2.6rem);letter-spacing:-.04em}
.fr-app .hud{display:flex;gap:8px;align-items:center}
.fr-app .badge{background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.28);border-radius:999px;padding:8px 14px;font-weight:850;backdrop-filter:blur(8px)}
.fr-app .iconBtn{width:42px;height:42px;border-radius:999px;border:1px solid rgba(255,255,255,.38);background:rgba(255,255,255,.18);color:#fff;font-weight:950;font-size:1.1rem;cursor:pointer;display:grid;place-items:center;backdrop-filter:blur(8px)}
.fr-app .iconBtn:hover{background:rgba(255,255,255,.28)}
.fr-app #settingsBtn{font-size:1.35rem}
.fr-app .panel{background:var(--fr-panel);border:1px solid rgba(255,255,255,.6);border-radius:var(--fr-radius);box-shadow:var(--fr-shadow);padding:14px}
.fr-app .map-wrap{position:relative;display:grid;place-items:center;min-height:420px}
.fr-app svg{width:100%;max-height:62vh;display:block;overflow:visible}
.fr-app .region{stroke:#fff;stroke-width:5;stroke-linejoin:round;cursor:pointer;transition:filter .15s ease,fill .15s ease}
.fr-app .region:hover{filter:brightness(1.05)}
.fr-app .region:focus-visible{outline:3px solid #17202a;outline-offset:-3px}
.fr-app .region.uncolored{fill:#eef1ee}
.fr-app .region.color-0{fill:var(--fr-c1)}
.fr-app .region.color-1{fill:var(--fr-c2)}
.fr-app .region.color-2{fill:var(--fr-c3)}
.fr-app .region.color-3{fill:var(--fr-c4)}
.fr-app .border-conflict{stroke:#c0392b;stroke-width:0;stroke-linecap:round;pointer-events:none;opacity:0;transition:opacity .15s ease}
.fr-app .border-conflict.show{stroke-width:7;opacity:1;animation:fr-pulse 1s ease-in-out infinite}
@keyframes fr-pulse{0%,100%{opacity:.55}50%{opacity:1}}
.fr-app .graph-edge{stroke:rgba(14,42,32,.3);stroke-width:4;stroke-linecap:round}
.fr-app .graph-node{stroke:#fff;stroke-width:5;cursor:pointer;transition:filter .15s ease,fill .15s ease}
.fr-app .graph-node:hover{filter:brightness(1.05)}
.fr-app .graph-node:focus-visible{outline:3px solid #17202a;outline-offset:2px}
.fr-app .graph-node.uncolored{fill:#eef1ee}
.fr-app .graph-node.color-0{fill:var(--fr-c1)}
.fr-app .graph-node.color-1{fill:var(--fr-c2)}
.fr-app .graph-node.color-2{fill:var(--fr-c3)}
.fr-app .graph-node.color-3{fill:var(--fr-c4)}
.fr-app .controls{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:14px}
.fr-app .ctrl{border:none;border-radius:16px;min-height:50px;padding:10px 14px;font-weight:850;cursor:pointer;background:#fff;color:var(--fr-ink);box-shadow:inset 0 0 0 1px var(--fr-line)}
.fr-app .ctrl:disabled{opacity:.4;cursor:default}
.fr-app .palette{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:14px}
.fr-app .swatch{min-height:58px;border:none;border-radius:16px;cursor:pointer;box-shadow:inset 0 0 0 2px rgba(0,0,0,.08);position:relative;transition:transform .12s ease,box-shadow .12s ease}
.fr-app .swatch:hover{transform:translateY(-1px)}
.fr-app .swatch.selected{box-shadow:0 0 0 4px #fff,0 0 0 7px rgba(14,42,32,.9)}
.fr-app .swatch[data-color="0"]{background:var(--fr-c1)}
.fr-app .swatch[data-color="1"]{background:var(--fr-c2)}
.fr-app .swatch[data-color="2"]{background:var(--fr-c3)}
.fr-app .swatch[data-color="3"]{background:var(--fr-c4)}
.fr-app .dots{display:flex;justify-content:center;gap:6px;margin-top:12px;flex-wrap:wrap;max-width:100%}
.fr-app .dot{width:9px;height:9px;border-radius:50%;background:rgba(14,42,32,.18)}
.fr-app .dot.done{background:#27ae60}
.fr-app .dot.current{background:#155e46;transform:scale(1.4)}
/* --- analyse de la carte (remplace les points de progression) ---------- */
.fr-app .analysis{margin-top:14px;padding-top:12px;border-top:1px solid var(--fr-line)}
.fr-app .analysis-stats{text-align:center;font-size:.78rem;color:var(--fr-ink);opacity:.65;margin:0 0 4px}
/* --- modale --------------------------------------------------------- */
.fr-app .modalBackdrop{position:fixed;inset:0;background:rgba(10,20,15,.55);display:none;align-items:center;justify-content:center;padding:20px;z-index:20}
.fr-app .modalBackdrop.show{display:flex}
.fr-app .modal{background:#fff;border-radius:20px;max-width:420px;width:100%;padding:22px;box-shadow:var(--fr-shadow);text-align:center}
.fr-app .modal h2{margin:0 0 12px;font-size:1.3rem}
.fr-app .modal p{line-height:1.5;margin:0 0 16px}
.fr-app .modal .demo{display:flex;justify-content:center;gap:0;margin:14px 0}
.fr-app .modal .demoSq{width:54px;height:54px;background:var(--fr-c1)}
.fr-app .modalBtn{border:none;border-radius:14px;min-height:48px;padding:10px 18px;font-weight:900;cursor:pointer;background:var(--fr-ink);color:#fff;width:100%}
.fr-app .modalBtn.secondary{background:#eef1ee;color:var(--fr-ink)}
.fr-app .modalBtn.danger{background:#fff1f0;color:#b42318;box-shadow:inset 0 0 0 1px #f0b4ae}
.fr-app .modalBtnRow{display:flex;flex-direction:column;gap:10px;margin-top:4px}
.fr-app .settings-note{font-size:.86rem;opacity:.75;line-height:1.4;margin:14px 0 0}
/* --- indice structurel (roue + morceaux) -------------------------------- */
.fr-app .hint{margin-top:8px;text-align:left}
.fr-app .hint-formula{font-weight:800;font-size:.86rem;margin:0 0 10px;text-align:center}
.fr-app .hint-panels{display:flex;flex-wrap:wrap;gap:8px;justify-content:center}
.fr-app .hint-zone{border:1px solid var(--fr-line);background:#f7f9f7;border-radius:10px;padding:4px;cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:3px;width:84px;font:inherit;color:var(--fr-ink)}
.fr-app .hint-zone:hover{border-color:var(--fr-c1)}
.fr-app .hint-zone:focus-visible{outline:2px solid var(--fr-c1);outline-offset:2px}
.fr-app .hint-zone svg{width:76px;height:56px;display:block;background:#eef1ee;border-radius:6px}
.fr-app .hint-zone .rg{stroke:#fff;stroke-width:3}
.fr-app .hint-zone .rg.color-0{fill:var(--fr-c1)}
.fr-app .hint-zone .rg.color-1{fill:var(--fr-c2)}
.fr-app .hint-zone .rg.color-2{fill:var(--fr-c3)}
.fr-app .hint-zone .rg.color-3{fill:var(--fr-c4)}
.fr-app .hint-zone .hge{stroke:rgba(14,42,32,.32);stroke-width:2.5}
.fr-app .hint-zone .hgn{stroke:#fff;stroke-width:2.5}
.fr-app .hint-zone .hgn.color-0{fill:var(--fr-c1)}
.fr-app .hint-zone .hgn.color-1{fill:var(--fr-c2)}
.fr-app .hint-zone .hgn.color-2{fill:var(--fr-c3)}
.fr-app .hint-zone .hgn.color-3{fill:var(--fr-c4)}
.fr-app .hint-zlabel{font-size:.66rem;font-weight:700}
.fr-app .hint-zchi{font-size:.6rem;opacity:.65}
/* --- écran de victoire ------------------------------------------------ */
.fr-app .winWrap{position:fixed;inset:0;display:none;align-items:center;justify-content:center;pointer-events:none;z-index:15}
.fr-app .winWrap.show{display:flex}
.fr-app .winBtn{pointer-events:auto;border:none;border-radius:999px;padding:16px 30px;font-weight:950;font-size:1.1rem;cursor:pointer;background:#fff;color:var(--fr-ink);box-shadow:var(--fr-shadow);opacity:0;transform:translateY(10px) scale(.9);animation:fr-popIn .5s ease forwards}
@keyframes fr-popIn{to{opacity:1;transform:translateY(0) scale(1)}}
@media(prefers-reduced-motion:reduce){.fr-app *,.fr-app *::before,.fr-app *::after{animation:none!important;transition:none!important}}
@media(max-width:640px){
  .fr-app{padding:12px 12px 18px;border-radius:18px}
  .fr-app .map-wrap{min-height:340px}
}