:root{--fx-navy:#0b172d;--fx-red:#ef3340;--fx-paper:#f4f0e8;--fx-ink:#111c31;--fx-muted:#647086;--fx-line:#ddd9d1}
.fx-main{padding:118px 0 90px;background:var(--fx-paper);min-height:100vh}
.fx-wrap{width:min(1180px,calc(100% - 48px));margin:auto}
.fx-breadcrumb{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:24px;color:#67738a;font-size:13px;font-weight:700}.fx-breadcrumb a{color:#0b172d;text-decoration:none}.fx-breadcrumb a:hover{color:var(--fx-red)}
.fx-hero{display:grid;grid-template-columns:1.1fr .9fr;gap:42px;align-items:start;margin-bottom:34px}.fx-kicker{display:flex;align-items:center;gap:10px;margin:0 0 15px;color:#667187;font-size:12px;font-weight:900;letter-spacing:.16em;text-transform:uppercase}.fx-kicker:before{content:'';width:28px;height:2px;background:var(--fx-red)}
.fx-main h1{margin:0;color:var(--fx-navy);font:400 clamp(42px,6vw,72px)/1.02 Georgia,'Times New Roman',serif;letter-spacing:-.04em}.fx-formula{margin:18px 0 0;font:700 clamp(22px,3vw,34px)/1.25 Georgia,'Times New Roman',serif;color:#bd1f2d}.fx-lead{margin:18px 0 0;color:var(--fx-muted);line-height:1.7;font-size:17px;max-width:780px}
.fx-summary{background:#fff;border:1px solid var(--fx-line);border-top:4px solid var(--fx-red);padding:24px}.fx-summary h2{font:400 26px Georgia,'Times New Roman',serif;margin:0 0 13px;color:var(--fx-navy)}.fx-summary p{margin:0;color:#4f5b70;line-height:1.6}
.fx-graph-card{background:#07182f;padding:18px;border-radius:10px;box-shadow:0 18px 45px #07182f22;margin:34px 0}.fx-toolbar{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;padding:0 2px 14px}.fx-toolbar-group{display:flex;gap:8px;flex-wrap:wrap}.fx-btn{border:1px solid #ffffff33;background:#ffffff0d;color:#fff;padding:9px 13px;border-radius:6px;font-weight:800;cursor:pointer}.fx-btn:hover,.fx-btn:focus-visible{background:#ffffff1b}.fx-btn.fx-reset{border-color:#ef334066;background:#ef334022}.fx-coords{color:#ced9ea;font-size:13px}.fx-canvas-wrap{position:relative}.fx-canvas{width:100%;height:500px;display:block;background:#091c39;border-radius:8px;cursor:crosshair;touch-action:none}.fx-canvas.dragging{cursor:grabbing}.fx-legend{padding:12px 2px 0;color:#dbe5f3;font-size:13px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap}
.fx-properties{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:30px}.fx-property{background:#fff;border:1px solid var(--fx-line);padding:22px;min-height:150px}.fx-property h2{margin:0 0 10px;color:var(--fx-red);font:900 12px Arial,sans-serif;letter-spacing:.11em;text-transform:uppercase}.fx-property p{margin:0;color:#364258;line-height:1.65}.fx-yes{font-weight:900;color:#137333}.fx-no{font-weight:900;color:#a61b29}.fx-note{font-weight:900;color:#8a5a00}
.fx-actions{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;margin-top:28px}.fx-actions a{display:inline-flex;align-items:center;min-height:44px;padding:0 15px;background:#0b172d;color:#fff;text-decoration:none;font-weight:800}.fx-actions a.secondary{background:#fff;color:#0b172d;border:1px solid #aeb7c5}
.fx-index-intro{margin-bottom:32px}.fx-index-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.fx-card{display:flex;flex-direction:column;min-height:220px;padding:24px;background:#fff;border:1px solid var(--fx-line);border-top:4px solid var(--fx-red);text-decoration:none;color:var(--fx-ink);transition:.18s ease}.fx-card:hover{transform:translateY(-3px);box-shadow:0 14px 34px #07182f16}.fx-card small{color:#67738a;text-transform:uppercase;font-weight:900;letter-spacing:.1em}.fx-card h2{margin:12px 0 9px;font:400 27px Georgia,'Times New Roman',serif;color:var(--fx-navy)}.fx-card .formula{font:700 18px Georgia,'Times New Roman',serif;color:#b51e2b}.fx-card p{color:#67738a;line-height:1.55;margin:11px 0 0}.fx-card span{margin-top:auto;padding-top:18px;font-weight:900;color:var(--fx-navy)}
.fx-param-panel{display:none;gap:12px;flex-wrap:wrap;align-items:end;background:#fff;border:1px solid var(--fx-line);padding:15px;margin:0 0 18px}.fx-param-panel.active{display:flex}.fx-param{display:grid;gap:5px}.fx-param label{font-size:12px;font-weight:900;text-transform:uppercase;letter-spacing:.08em;color:#59657a}.fx-param input{width:150px;padding:8px 10px;border:1px solid #bfc7d2;font:inherit}
@media(max-width:900px){.fx-hero{grid-template-columns:1fr}.fx-properties,.fx-index-grid{grid-template-columns:1fr 1fr}.fx-canvas{height:420px}}
@media(max-width:620px){.fx-wrap{width:min(100% - 28px,1180px)}.fx-main{padding-top:98px}.fx-properties,.fx-index-grid{grid-template-columns:1fr}.fx-canvas{height:330px}.fx-main h1{font-size:43px}}


/* ===== Riquadri colorati + layout a elenco ===== */
.fx-property-list{list-style:none;display:grid;grid-template-columns:1fr;gap:12px;padding:0;margin:30px 0 0;counter-reset:fxprop}
.fx-property-list .fx-property{--fx-accent:#ef3340;counter-increment:fxprop;min-height:0;display:grid;grid-template-columns:42px minmax(190px,250px) 1fr;align-items:start;gap:16px;padding:18px 20px;border:1px solid #d7dce5;border-left:7px solid var(--fx-accent);border-radius:10px;background:#fff;box-shadow:0 8px 22px rgba(11,23,45,.06)}
.fx-property-list .fx-property::before{content:counter(fxprop);width:34px;height:34px;border-radius:50%;display:grid;place-items:center;color:#fff;background:var(--fx-accent);font:900 13px Arial,sans-serif}
.fx-property-list .fx-property h2{margin:7px 0 0;color:var(--fx-accent);font:900 12px Arial,sans-serif;letter-spacing:.10em;text-transform:uppercase}
.fx-property-list .fx-property p{margin:4px 0 0;color:#26344b;line-height:1.7;font-size:15.5px}
.fx-property-list .fx-property:nth-child(5n+1){--fx-accent:#ef3340;background:#fff4f5}.fx-property-list .fx-property:nth-child(5n+2){--fx-accent:#d7a000;background:#fffbea}.fx-property-list .fx-property:nth-child(5n+3){--fx-accent:#1677d2;background:#f1f7ff}.fx-property-list .fx-property:nth-child(5n+4){--fx-accent:#ed7415;background:#fff6ed}.fx-property-list .fx-property:nth-child(5n){--fx-accent:#138a43;background:#effbf3}
.fx-function-list{list-style:none;display:grid;grid-template-columns:1fr;gap:13px;padding:0;margin:0;counter-reset:fxfun}.fx-function-list .fx-card{counter-increment:fxfun;min-height:0;padding:0;border:0;background:transparent}.fx-function-list .fx-card:hover{transform:none;box-shadow:none}
.fx-card-link{--fx-accent:#ef3340;display:grid;grid-template-columns:54px 170px minmax(220px,1fr) minmax(210px,.75fr) auto;align-items:center;gap:16px;padding:17px 20px;border:1px solid #d7dce5;border-left:7px solid var(--fx-accent);border-radius:10px;text-decoration:none;color:var(--fx-ink);box-shadow:0 8px 22px rgba(11,23,45,.055);transition:.18s ease;background:#fff}
.fx-card-link::before{content:counter(fxfun);width:38px;height:38px;border-radius:50%;display:grid;place-items:center;color:#fff;background:var(--fx-accent);font:900 13px Arial,sans-serif}
.fx-card:nth-child(5n+1) .fx-card-link{--fx-accent:#ef3340;background:#fff4f5}.fx-card:nth-child(5n+2) .fx-card-link{--fx-accent:#d7a000;background:#fffbea}.fx-card:nth-child(5n+3) .fx-card-link{--fx-accent:#1677d2;background:#f1f7ff}.fx-card:nth-child(5n+4) .fx-card-link{--fx-accent:#ed7415;background:#fff6ed}.fx-card:nth-child(5n) .fx-card-link{--fx-accent:#138a43;background:#effbf3}
.fx-card-link:hover{transform:translateX(4px);box-shadow:0 12px 30px rgba(11,23,45,.10)}.fx-card-link small{color:var(--fx-accent);font-weight:900}.fx-card-link h2{margin:0;font:400 25px Georgia,'Times New Roman',serif;color:var(--fx-navy)}.fx-card-link .formula{margin:0;color:#23334c;font-size:18px;font-weight:700}.fx-card-link p{margin:0;color:#67738a;line-height:1.5}.fx-card-link span{margin:0;padding:0;white-space:nowrap;color:var(--fx-accent);font-weight:900}
.fx-formula mjx-container{font-size:112%!important}.fx-property mjx-container,.fx-card-link mjx-container{color:inherit!important}.fx-property p mjx-container{font-size:104%!important}
@media(max-width:900px){.fx-property-list .fx-property{grid-template-columns:42px 1fr}.fx-property-list .fx-property p{grid-column:2}.fx-card-link{grid-template-columns:48px 140px 1fr}.fx-card-link .formula,.fx-card-link p,.fx-card-link span{grid-column:3}}
@media(max-width:620px){.fx-property-list .fx-property{grid-template-columns:38px 1fr;gap:11px;padding:16px}.fx-card-link{grid-template-columns:42px 1fr;gap:8px 12px;padding:15px}.fx-card-link small,.fx-card-link h2,.fx-card-link .formula,.fx-card-link p,.fx-card-link span{grid-column:2}}


/* ===== Indice formule: mostra solo la funzione ===== */
.fx-function-list .fx-card-link{
  grid-template-columns: 54px 1fr auto;
  gap: 18px;
  align-items: center;
  min-height: 94px;
}
.fx-card-link .formula{
  margin: 0;
  font-size: clamp(22px, 3vw, 34px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--fx-navy);
}
.fx-card-link span{
  font-size: 14px;
  letter-spacing: .02em;
}
.fx-card-link small,
.fx-card-link h2,
.fx-card-link p{
  display: none !important;
}
@media(max-width:900px){
  .fx-function-list .fx-card-link{
    grid-template-columns: 48px 1fr auto;
  }
  .fx-card-link .formula,
  .fx-card-link span{
    grid-column: auto;
  }
}
@media(max-width:620px){
  .fx-function-list .fx-card-link{
    grid-template-columns: 42px 1fr;
    gap: 12px;
  }
  .fx-card-link .formula{
    grid-column: 2;
  }
  .fx-card-link span{
    grid-column: 2;
    padding-top: 4px;
  }
}


/* ===== Correzione indice: solo formule leggibili, senza sovrapposizioni ===== */
.fx-function-list .fx-card-link{
  display:grid !important;
  grid-template-columns:64px 1fr !important;
  align-items:center !important;
  gap:22px !important;
  min-height:96px;
  padding:18px 24px !important;
}
.fx-function-list .fx-card-link::before{
  align-self:center;
  justify-self:center;
}
.fx-function-list .fx-card-link .formula{
  display:block !important;
  margin:0 !important;
  font-size:clamp(24px,3.2vw,38px) !important;
  line-height:1.25 !important;
  color:var(--fx-navy) !important;
  white-space:normal !important;
  overflow-wrap:anywhere;
}
.fx-function-list .fx-card-link small,
.fx-function-list .fx-card-link h2,
.fx-function-list .fx-card-link p,
.fx-function-list .fx-card-link span{
  display:none !important;
}
@media (max-width:620px){
  .fx-function-list .fx-card-link{
    grid-template-columns:54px 1fr !important;
    gap:14px !important;
    padding:16px 18px !important;
  }
  .fx-function-list .fx-card-link .formula{
    font-size:clamp(20px,7vw,30px) !important;
  }
}


/* ===== Centra e allinea le formule nell'indice ===== */
.fx-function-list .fx-card-link{
  position: relative !important;
  display: flex !important;
  justify-content: center !important;
  align-items: center !important;
  min-height: 108px !important;
  padding: 18px 26px !important;
}
.fx-function-list .fx-card-link::before{
  position: absolute !important;
  left: 24px !important;
  top: 50% !important;
  transform: translateY(-50%) !important;
  margin: 0 !important;
}
.fx-function-list .fx-card-link .formula{
  width: 100% !important;
  text-align: center !important;
  display: flex !important;
  justify-content: center !important;
  align-items: center !important;
  padding: 0 70px !important;
  margin: 0 !important;
  font-size: clamp(24px, 3.1vw, 38px) !important;
  line-height: 1.25 !important;
}
.fx-function-list .fx-card-link .formula mjx-container{
  margin: 0 auto !important;
}
@media (max-width: 620px){
  .fx-function-list .fx-card-link{
    min-height: 92px !important;
    padding: 16px 18px !important;
  }
  .fx-function-list .fx-card-link::before{
    left: 14px !important;
  }
  .fx-function-list .fx-card-link .formula{
    padding: 0 42px 0 54px !important;
    font-size: clamp(20px, 6vw, 30px) !important;
  }
}