:root{
  --bg:#FFFFFF; --bg-2:#F1FBF3; --bg-soft:#F1FBF3; --bg-card:#FFFFFF;
  --ink:#0A0B0A; --ink-2:#3D423D; --ink-3:#6C726C; --muted:#6C726C;
  /* scala del verde: acceso solo come superficie, gli altri portano il colore
     dove il testo deve restare leggibile e dove servono fondi e bordi */
  --acc:#17C24A; --acc-ink:#0A7A32; --acc-deep:#04351A; --acc-soft:#E6FBEA;
  --acc-line:rgba(10,122,50,.26);
  --line:rgba(0,0,0,.11); --panel:#FAFBFA;
  --radius:20px; --radius-sm:12px;
  --shadow:0 2px 12px rgba(0,0,0,.04);
  --shadow-lg:0 24px 60px -34px rgba(0,0,0,.35);
  --warn:#B3261E;
  /* alias verso i vecchi nomi, ancora citati dagli stili in linea dei singoli strumenti */
  --navy:#0A0B0A; --navy-soft:#1C1F1C; --teal:#0A7A32;
  --amber:#0A7A32; --amber-soft:#E6FBEA; --green:#17C24A; --red:#B3261E;
  --display:'Inter Tight','Inter',sans-serif;
  --font:'Inter',-apple-system,system-ui,sans-serif;
  --nav-h:58px;
}
*{margin:0;padding:0;box-sizing:border-box}
/* .promo e le sezioni hanno un display esplicito: senza questa riga l'attributo hidden non le nasconde */
[hidden]{display:none!important}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font);font-size:18px;background:var(--bg);color:var(--ink-2);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;line-height:1.45}
@media(max-width:600px){body{font-size:17px}}
::selection{background:var(--acc);color:var(--ink)}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
input,select,textarea{font-family:inherit}
h1,h2,h3{color:var(--ink);text-wrap:pretty}

/* NAVBAR */
.nav{position:fixed;top:0;left:0;right:0;height:var(--nav-h);z-index:100;background:rgba(255,255,255,.9);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line);display:flex;align-items:center;padding:0 24px}
.nav-inner{width:100%;max-width:1200px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:10px}
.brand img{height:23px;width:auto}
.brand-text{display:flex;flex-direction:column}
.brand-name{font-family:var(--display);font-size:15px;font-weight:600;letter-spacing:-.02em;color:var(--ink);line-height:1.1}
.brand-sub{font-size:10.5px;font-weight:700;text-transform:uppercase;letter-spacing:.13em;color:var(--acc-ink)}
.nav-links{display:flex;align-items:center;gap:2px}
.nav-link{font-size:14px;color:var(--ink-2);padding:7px 12px;border-radius:999px;transition:background .2s,color .2s}
.nav-link:hover{color:var(--ink);background:var(--bg-2)}
.btn-cta{display:inline-flex;align-items:center;gap:10px;font-size:13.5px;font-weight:700;letter-spacing:-.01em;line-height:1.2;color:#04140B;background:var(--acc);padding:7px 7px 7px 18px;border-radius:999px;border:none;box-shadow:inset 0 0 0 1px rgba(0,66,0,.22);transition:transform .16s,filter .2s}
.btn-cta::after{content:"→";display:flex;align-items:center;justify-content:center;width:24px;height:24px;background:rgba(0,66,0,.13);border-radius:50%;font-size:13px}
.btn-cta:hover{transform:translateY(-2px);filter:brightness(1.04)}

/* HERO */
.hero{padding:calc(var(--nav-h) + 56px) 24px 40px;text-align:center;background:var(--bg);position:relative;isolation:isolate}
.hero::before{content:"";position:absolute;inset:0 -10% auto;height:78%;z-index:-1;pointer-events:none;background:radial-gradient(58% 100% at 50% 0,rgba(23,194,74,.15) 0%,rgba(23,194,74,.05) 44%,transparent 74%)}
.hero h1{font-family:var(--display);font-size:clamp(32px,4.4vw,58px);font-weight:600;letter-spacing:-.03em;line-height:1.05}
.hero h1 em{font-style:normal;color:var(--acc-ink);-webkit-text-fill-color:currentColor}
.hero p{margin:18px auto 0;font-family:var(--font);font-style:normal;font-weight:400;font-size:clamp(17px,1.35vw,21px);line-height:1.5;color:var(--ink-2);max-width:660px}
.hero-search{margin:30px auto 0;max-width:620px;position:relative}
.hero-search input{width:100%;padding:16px 96px 16px 50px;border:1px solid var(--line);border-radius:999px;font-size:16px;letter-spacing:0;text-transform:none;outline:none;background:#fff;color:var(--ink);box-shadow:var(--shadow);transition:border-color .2s,box-shadow .2s}
.hero-search input::placeholder{color:#A4A9A4}
.hero-search input:focus{border-color:var(--acc-ink);box-shadow:0 0 0 3px rgba(23,194,74,.35)}
.hero-search .search-icon{position:absolute;left:19px;top:50%;transform:translateY(-50%);color:var(--ink-3);font-size:22px;pointer-events:none}
.search-kbd{position:absolute;right:16px;top:50%;transform:translateY(-50%);display:flex;gap:5px;pointer-events:none}
.kbd{font-family:var(--font);font-size:11px;font-weight:700;color:var(--ink-3);background:var(--bg-2);border:1px solid var(--line);border-bottom-width:2px;border-radius:6px;padding:2px 7px;line-height:1.5}
.search-clear{position:absolute;right:14px;top:50%;transform:translateY(-50%);display:none;background:var(--bg-2);border:1px solid var(--line);border-radius:50%;width:28px;height:28px;align-items:center;justify-content:center;color:var(--ink-3)}
.search-clear.show{display:flex}
.search-clear:hover{color:var(--ink);background:var(--acc-soft)}
.hero-stats{display:flex;justify-content:center;gap:1px;margin:32px auto 0;max-width:620px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.hero-stat{flex:1;text-align:center;background:linear-gradient(180deg,#fff 0%,var(--acc-soft) 100%);padding:18px 10px}
.hero-stat strong{color:var(--acc-ink)}
.hero-stat strong{font-family:var(--display);font-size:26px;font-weight:700;letter-spacing:-.04em;line-height:1;color:var(--ink)}
.hero-stat span{display:block;font-size:10.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);margin-top:8px}

/* STRISCIA CATEGORIE */
.cat-strip{position:sticky;top:var(--nav-h);z-index:90;background:rgba(255,255,255,.92);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line);overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.cat-strip::-webkit-scrollbar{display:none}
.cat-strip-inner{display:flex;gap:6px;padding:10px 24px;max-width:1200px;margin:0 auto;min-width:max-content}
.cat-btn{font-size:13.5px;font-weight:600;letter-spacing:-.01em;line-height:1.2;color:var(--ink-2);padding:8px 14px;border-radius:999px;border:1px solid var(--line);background:#fff;white-space:nowrap;transition:all .2s;display:flex;align-items:center;gap:6px}
.cat-btn:hover{background:var(--acc-soft);border-color:rgba(0,66,0,.3);color:var(--ink)}
.cat-btn.active{background:var(--acc);border-color:rgba(0,66,0,.3);color:#04140B;font-weight:700}
.cat-btn .material-symbols-outlined{font-size:17px}

/* MAIN */
.main{max-width:1200px;margin:0 auto;padding:34px 24px 80px}
.cat-section{margin-bottom:52px;scroll-margin-top:130px}
.cat-header{display:flex;align-items:center;gap:14px;margin-bottom:20px}
.cat-icon{width:44px;height:44px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;flex-shrink:0;background:var(--acc-soft);border:1px solid rgba(0,66,0,.22);color:var(--acc-ink)}
.cat-icon .material-symbols-outlined{font-size:22px;color:var(--acc-ink)}
.cat-title{font-family:var(--display);font-size:clamp(22px,2.4vw,30px);font-weight:600;letter-spacing:-.025em;line-height:1.15;color:var(--ink)}
.cat-desc{font-size:12.5px;line-height:1.55;color:var(--ink-3);margin-top:4px}
.cat-count{font-size:10.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);margin-left:auto;white-space:nowrap}
.tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(290px,1fr));gap:14px}
.tool-card{background:var(--bg-card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;cursor:pointer;transition:border-color .2s,box-shadow .25s,transform .25s;position:relative;overflow:hidden}
.tool-card:hover{border-color:rgba(0,66,0,.4);box-shadow:var(--shadow-lg);transform:translateY(-2px)}
.tool-card:focus-visible{outline:none;border-color:var(--acc-ink);box-shadow:0 0 0 3px rgba(23,194,74,.35)}
.tool-card-head{display:flex;align-items:flex-start;gap:12px;margin-bottom:10px}
.tool-card-icon{width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;flex-shrink:0;background:var(--acc-soft);border:1px solid var(--acc-line);color:var(--acc-ink);transition:background .2s,border-color .2s,color .2s}
.tool-card:hover .tool-card-icon{background:var(--acc);border-color:rgba(10,122,50,.35);color:#04140B}
.tool-card-icon .material-symbols-outlined{font-size:20px;color:inherit}
.tool-card h3{font-family:var(--display);font-size:18px;font-weight:600;letter-spacing:-.02em;line-height:1.3;color:var(--ink)}
.tool-card p{font-size:12.5px;color:var(--ink-3);line-height:1.55}
.tool-card .arrow{position:absolute;top:22px;right:20px;font-size:18px;color:var(--line);transition:color .2s,transform .2s}
.tool-card:hover .arrow{color:var(--acc-ink);transform:translateX(3px)}

/* RECENTI */
.recents{margin-bottom:40px}
.recents-head{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.recents-head .material-symbols-outlined{font-size:18px;color:var(--acc-ink)}
.recents-head h2{font-size:10.5px;font-weight:700;letter-spacing:.13em;text-transform:uppercase;color:var(--ink-3)}
.recents-head button{margin-left:auto;font-size:12.5px;color:var(--ink-3);background:none;border:none;border-bottom:1px solid var(--line)}
.recents-head button:hover{color:var(--acc-ink);border-color:var(--acc)}
.recents-row{display:flex;gap:10px;flex-wrap:wrap}
.recent-chip{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 16px 8px 12px;font-size:13.5px;font-weight:600;color:var(--ink);transition:background .2s,border-color .2s}
.recent-chip:hover{background:var(--acc-soft);border-color:rgba(0,66,0,.3)}
.recent-chip .material-symbols-outlined{font-size:17px;color:var(--acc-ink)}

/* NESSUN RISULTATO */
.empty{display:none;text-align:center;padding:60px 20px;border:1px dashed var(--line);border-radius:var(--radius);background:var(--panel)}
.empty.show{display:block}
.empty .material-symbols-outlined{font-size:34px;color:var(--ink-3)}
.empty h3{font-family:var(--display);font-size:22px;font-weight:600;letter-spacing:-.025em;margin-top:12px}
.empty p{font-size:16.5px;color:var(--ink-3);margin-top:8px}
.search-count{margin-top:16px;font-size:12.5px;font-weight:600;color:var(--ink-3);min-height:19px}

/* MODALE */
.modal-overlay{position:fixed;inset:0;background:rgba(10,11,10,.45);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);z-index:200;display:none;align-items:center;justify-content:center;padding:24px}
.modal-overlay.open{display:flex}
.modal{background:#fff;border:1px solid var(--line);border-radius:24px;width:100%;max-width:620px;max-height:88vh;display:flex;flex-direction:column;box-shadow:0 40px 90px -40px rgba(0,0,0,.55);animation:modalIn .28s cubic-bezier(.22,.61,.36,1)}
@keyframes modalIn{from{opacity:0;transform:translateY(16px) scale(.985)}to{opacity:1;transform:none}}
.modal-head{display:flex;align-items:center;gap:16px;padding:22px 26px;border-bottom:1px solid var(--line)}
.modal-head h2{font-family:var(--display);font-size:22px;font-weight:600;letter-spacing:-.025em;line-height:1.15;flex:1}
.modal-close{width:34px;height:34px;border-radius:50%;border:1px solid var(--line);background:#fff;color:var(--ink-3);display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:background .2s,color .2s}
.modal-close:hover{background:var(--bg-2);color:var(--ink)}
.modal-body{padding:26px;overflow-y:auto}

/* MODULI */
.fg{margin-bottom:16px}
.fg label{display:block;font-size:12.5px;font-weight:600;text-transform:uppercase;letter-spacing:.04em;color:var(--ink-3);margin-bottom:6px}
.fi{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:var(--radius-sm);font-size:16px;letter-spacing:0;text-transform:none;color:var(--ink);outline:none;background:#fff;transition:border-color .2s,box-shadow .2s}
.fi:focus{border-color:var(--acc-ink);box-shadow:0 0 0 3px rgba(23,194,74,.35)}
.fi-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.fi-row-3{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
select.fi{appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%236C726C'%3E%3Cpath d='M6 8.5L1 3.5h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:36px;cursor:pointer}
.btn-calc{width:100%;padding:13px;border:none;border-radius:999px;background:var(--acc);color:#04140B;font-size:16px;font-weight:700;letter-spacing:-.01em;line-height:1.2;box-shadow:inset 0 0 0 1px rgba(0,66,0,.22);transition:filter .2s,transform .15s;margin-top:8px}
.btn-calc:hover{filter:brightness(1.04);transform:translateY(-1px)}
.btn-calc:active{transform:scale(.99)}
.btn-pdf{width:100%;padding:11px;border:1px solid var(--line);border-radius:999px;background:#fff;color:var(--ink);font-size:14px;font-weight:700;letter-spacing:-.01em;line-height:1.2;margin-top:8px;display:none;transition:all .2s;gap:6px;align-items:center;justify-content:center}
.btn-pdf:hover{border-color:rgba(0,66,0,.4);background:var(--acc-soft)}
.btn-pdf.show{display:flex}
.btn-pdf .material-symbols-outlined{font-size:16px}
.chk-row{display:flex;align-items:center;gap:8px;margin-bottom:12px}
.chk-row label{margin:0;text-transform:none;font-size:16px;font-weight:500;letter-spacing:0;color:var(--ink-2)}
.chk-row input[type=checkbox]{width:17px;height:17px;accent-color:var(--acc-ink)}
.note{font-size:12.5px;color:var(--ink-3);margin-top:6px;line-height:1.55}
.hint{font-size:12.5px;color:var(--acc-ink);background:var(--acc-soft);border-radius:8px;padding:8px 10px;margin-top:6px;line-height:1.55}

/* RISULTATO */
.result-box{margin-top:18px;padding:20px 22px;background:var(--acc-soft);border:1px solid rgba(0,66,0,.28);border-radius:var(--radius-sm);color:var(--ink);display:none;position:relative}
.result-box.show{display:block;animation:modalIn .3s ease}
.result-label{font-size:10.5px;font-weight:700;text-transform:uppercase;letter-spacing:.1em;color:var(--acc-ink);margin-bottom:6px}
.result-value{font-family:var(--display);font-size:32px;font-weight:700;letter-spacing:-.04em;line-height:1;color:var(--ink)}
.result-detail{font-size:12.5px;color:var(--ink-2);margin-top:8px;line-height:1.55}
.result-rows{margin-top:14px}
.result-row{display:flex;justify-content:space-between;align-items:baseline;gap:12px;padding:7px 0;border-top:1px solid rgba(0,66,0,.15);font-size:12.5px;line-height:1.55;color:var(--ink-2)}
.result-row span:last-child{font-family:var(--display);font-size:18px;font-weight:700;letter-spacing:-.03em;color:var(--ink)}
.result-row.highlight{background:rgba(23,194,74,.28);margin:0 -8px;padding:7px 8px;border-radius:6px}
.result-section-title{font-size:10.5px;font-weight:700;text-transform:uppercase;letter-spacing:.13em;color:var(--acc-ink);margin-top:14px;margin-bottom:4px;padding-top:10px;border-top:1px solid rgba(0,66,0,.2)}
.result-badge{display:inline-block;padding:3px 10px;border-radius:999px;font-size:10.5px;font-weight:700;text-transform:uppercase;letter-spacing:.16em}
.badge-ok{background:var(--acc);color:#04140B}
.badge-warn{background:rgba(179,38,30,.1);color:var(--warn)}
.btn-copy{position:absolute;top:14px;right:14px;display:inline-flex;align-items:center;gap:5px;font-size:11px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--acc-ink);background:#fff;border:1px solid rgba(0,66,0,.28);border-radius:999px;padding:5px 11px;transition:background .2s}
.btn-copy:hover{background:var(--acc)}
.btn-copy .material-symbols-outlined{font-size:14px}

/* PIEDE */
.footer{background:var(--acc-deep);color:#9FB3A6;padding:54px 24px 34px;text-align:center}
.footer-brand{font-family:var(--display);font-size:18px;font-weight:600;letter-spacing:-.02em;color:#fff;margin-bottom:6px}
.footer-sub{font-size:12.5px;line-height:1.55;margin-bottom:20px}
.footer-links{display:flex;justify-content:center;gap:20px;flex-wrap:wrap;margin-bottom:16px}
.footer-links a{font-size:12.5px;line-height:1.9;transition:color .2s}
.footer-links a:hover{color:var(--acc)}
.footer-copy{font-size:12.5px;line-height:1.55;opacity:.55;max-width:760px;margin:0 auto}

/* RIMANDO A STUDIO */
.promo{background:linear-gradient(135deg,#fff 0%,var(--acc-soft) 100%);border:1px solid var(--acc-line);border-radius:var(--radius);padding:32px;margin-bottom:48px;display:flex;align-items:center;gap:24px}
.promo-text h3{font-family:var(--display);font-size:clamp(22px,2.4vw,30px);font-weight:600;letter-spacing:-.025em;line-height:1.15;margin-bottom:6px;color:var(--ink)}
.promo-text p{font-size:16.5px;color:var(--ink-2);line-height:1.5}
.promo .btn-promo{flex-shrink:0;display:inline-flex;align-items:center;gap:10px;padding:11px 11px 11px 22px;border-radius:999px;background:var(--acc);color:#04140B;font-size:16px;font-weight:700;letter-spacing:-.01em;line-height:1.2;border:none;box-shadow:inset 0 0 0 1px rgba(0,66,0,.22);transition:transform .16s,filter .2s}
.promo .btn-promo::after{content:"→";display:flex;align-items:center;justify-content:center;width:28px;height:28px;background:rgba(0,66,0,.13);border-radius:50%;font-size:14px}
.promo .btn-promo:hover{transform:translateY(-2px);filter:brightness(1.04)}

/* TABELLE DI RIFERIMENTO */
.ref-table{width:100%;border-collapse:collapse;font-size:12.5px;line-height:1.55;margin-top:12px}
.ref-table th{background:var(--bg-2);font-weight:700;text-align:left;padding:9px 10px;font-size:10.5px;text-transform:uppercase;letter-spacing:.1em;color:var(--ink-3);position:sticky;top:0}
.ref-table td{padding:8px 10px;border-bottom:1px solid var(--line);color:var(--ink-2)}
.ref-table tr:hover td{background:var(--acc-soft)}
.table-scroll{max-height:400px;overflow-y:auto;border:1px solid var(--line);border-radius:var(--radius-sm);margin-top:8px}

/* RIQUADRO CTA NEGLI STRUMENTI */
.cta-box{margin-top:22px;padding:20px 22px;background:var(--panel);border:1px solid var(--line);border-left:3px solid var(--acc);border-radius:var(--radius-sm)}
.cta-icon{display:flex;align-items:center;gap:8px;margin-bottom:8px;color:var(--acc-ink);font-weight:700;font-size:10.5px;text-transform:uppercase;letter-spacing:.13em}
.cta-icon .material-symbols-outlined{font-size:18px}
.cta-title{font-family:var(--display);font-size:18px;font-weight:600;letter-spacing:-.02em;color:var(--ink);line-height:1.3;margin-bottom:4px}
.cta-desc{font-size:16.5px;color:var(--ink-2);line-height:1.5;margin-bottom:14px}
.cta-btn{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:700;letter-spacing:-.01em;line-height:1.2;color:#04140B;background:var(--acc);padding:9px 18px;border-radius:999px;border:none;box-shadow:inset 0 0 0 1px rgba(0,66,0,.22);transition:filter .2s,transform .18s;text-decoration:none}
.cta-btn:hover{filter:brightness(1.04);transform:translateY(-1px)}
.cta-btn .material-symbols-outlined{font-size:16px}
.cta-footer{margin-top:14px;padding-top:12px;border-top:1px solid var(--line);text-align:center}
.cta-footer a{font-size:12.5px;line-height:1.55;color:var(--ink-3);transition:color .2s}
.cta-footer a:hover{color:var(--acc-ink)}
.cta-discrete{margin-top:16px;text-align:center}
.cta-discrete a{font-size:12.5px;line-height:1.55;color:var(--ink-3);display:inline-flex;align-items:center;gap:4px;transition:color .2s}
.cta-discrete a:hover{color:var(--acc-ink)}
.cta-discrete .material-symbols-outlined{font-size:14px}

/* PUNTI DI ROTTURA */
@media(max-width:768px){
  .nav-links{display:none}
  .tools-grid{grid-template-columns:1fr}
  .fi-row,.fi-row-3{grid-template-columns:1fr}
  .promo{flex-direction:column;text-align:center;padding:24px}
  .search-kbd{display:none}
  .hero-search input{padding-right:50px}
}
@media(max-width:480px){
  .modal-overlay{padding:0}
  .modal{border-radius:20px 20px 0 0;max-height:94vh;align-self:flex-end}
  .cat-strip-inner{padding:8px 14px}
  .main{padding:22px 16px 60px}
  .hero{padding-left:16px;padding-right:16px}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}