/* Ferdinando Mercuri — Metodo USALI. Design tokens + components. */

/* Fonts: self-hosted WOFF2 (OFL). Drop the files in /assets/fonts/ — see HANDOFF.md.
   Until then the fallbacks below are used. */
@font-face{font-family:"Newsreader";src:url("../fonts/newsreader-var.woff2") format("woff2");font-weight:400 600;font-style:normal;font-display:swap}
@font-face{font-family:"Newsreader";src:url("../fonts/newsreader-italic-var.woff2") format("woff2");font-weight:400 600;font-style:italic;font-display:swap}
@font-face{font-family:"Hanken Grotesk";src:url("../fonts/hanken-grotesk-var.woff2") format("woff2");font-weight:400 700;font-style:normal;font-display:swap}

:root{
  /* Palette: Blu Lario */
  --bg:#F4F6F9;--sf:#FFFFFF;--ink:#16202B;--mut:#526070;--line:#D6DEE8;--pri:#1E3A5F;--on:#F4F6F9;--acc:#2E6DA4;--acc-t:#285F91;--ter:#5B6878;--block:#1E3A5F;--on-block:#F4F6F9;--acc-block:#9CC3EA;--ok:#2E6A4E;--err:#A3362A;--field:#526070;--hl:#7FA7CF;
  --serif:"Newsreader",Georgia,"Times New Roman",serif;
  --sans:"Hanken Grotesk",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --wrap:1240px;--gut:clamp(16px,4vw,40px);--sec:clamp(56px,7vw,104px);
  --r:3px;--rc:6px;--hdr:72px;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#0C1522;--sf:#122033;--ink:#E8EEF5;--mut:#A3B1C2;--line:#243549;--pri:#8CB8E6;--on:#0C1522;--acc:#7DB4EC;--acc-t:#7DB4EC;--ter:#AEBACB;--block:#173052;--on-block:#E8EEF5;--acc-block:#9CC3EA;--ok:#86C9A3;--err:#F0917F;--field:#A3B1C2;--hl:#7FA7CF;
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --bg:#0C1522;--sf:#122033;--ink:#E8EEF5;--mut:#A3B1C2;--line:#243549;--pri:#8CB8E6;--on:#0C1522;--acc:#7DB4EC;--acc-t:#7DB4EC;--ter:#AEBACB;--block:#173052;--on-block:#E8EEF5;--acc-block:#9CC3EA;--ok:#86C9A3;--err:#F0917F;--field:#A3B1C2;--hl:#7FA7CF;
  color-scheme:dark;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:calc(var(--hdr) + 16px)}
@media (prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}
body{margin:0;background:var(--bg);color:var(--ink);font:400 17px/1.6 var(--sans);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
img,svg{max-width:100%;height:auto}
a{color:inherit;text-decoration-color:var(--acc);text-underline-offset:3px;text-decoration-thickness:1px}
a:hover{color:var(--acc-t)}
:focus-visible{outline:2px solid var(--acc);outline-offset:3px}
h1,h2,h3,h4{font-family:var(--serif);font-weight:500;margin:0;text-wrap:balance}
p{text-wrap:pretty}
.wrap{max-width:var(--wrap);margin:0 auto;padding-left:max(var(--gut),env(safe-area-inset-left));padding-right:max(var(--gut),env(safe-area-inset-right))}
.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip{position:absolute;left:16px;top:-60px;z-index:100;background:var(--pri);color:var(--on);padding:12px 18px;border-radius:var(--r);font-weight:600;text-decoration:none}
.skip:focus{top:12px}

/* Placeholders: visible, clearly marked */
.ph{display:inline;background:repeating-linear-gradient(135deg,color-mix(in srgb,var(--acc) 12%,transparent) 0 6px,transparent 6px 12px);border:1px dashed var(--acc);color:var(--acc-t);padding:1px 6px;border-radius:2px;font:500 .86em/1.5 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;-webkit-box-decoration-break:clone;box-decoration-break:clone}

/* Type helpers */
.eyebrow{margin:0;font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--acc-t);font-weight:600}
.h1{font-size:clamp(40px,6.2vw,78px);line-height:1.02;letter-spacing:-.02em}
.h1-page{font-size:clamp(36px,5vw,64px);line-height:1.05;letter-spacing:-.02em}
.h2{font-size:clamp(30px,3.6vw,46px);line-height:1.1;letter-spacing:-.015em}
.h3{font-size:clamp(22px,2vw,26px);line-height:1.2}
.lead{font-size:clamp(17px,1.6vw,20px);color:var(--mut);max-width:56ch}
.muted{color:var(--mut)}
.small{font-size:14.5px}
.xs{font-size:12.5px;letter-spacing:.02em;color:var(--mut)}
.num{font-family:var(--serif);font-variant-numeric:lining-nums tabular-nums}

/* Buttons */
.btn{min-height:52px;display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:0 24px;border-radius:var(--r);text-decoration:none;font:600 16px/1.2 var(--sans);border:1px solid transparent;cursor:pointer;transition:background-color .2s,color .2s,border-color .2s}
.btn-pri{background:var(--pri);color:var(--on)}
.btn-pri:hover{color:var(--on);background:color-mix(in srgb,var(--pri) 86%,var(--ink))}
.btn-out{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-out:hover{color:var(--ink);background:color-mix(in srgb,var(--ink) 7%,transparent)}
.btn-sm{min-height:44px;padding:0 18px;font-size:15px}
.btn-light{background:var(--on-block);color:var(--block)}
.btn-light:hover{color:var(--block);background:color-mix(in srgb,var(--on-block) 88%,var(--block))}
.btn-ghost-light{border-color:var(--on-block);color:var(--on-block)}
.btn-ghost-light:hover{color:var(--on-block);background:rgba(255,255,255,.08)}
.btn[disabled]{opacity:.6;cursor:progress}
.btns{display:flex;flex-wrap:wrap;gap:12px}
.link-arrow{font-weight:600;font-size:15px;min-height:44px;display:inline-flex;align-items:center;gap:6px}

/* Header */
.hdr{position:sticky;top:0;z-index:40;background:var(--bg);border-bottom:1px solid var(--line);transition:box-shadow .25s}
.hdr .wrap{height:var(--hdr);display:flex;align-items:center;justify-content:space-between;gap:12px;transition:height .25s}
.hdr.is-condensed{background:color-mix(in srgb,var(--bg) 92%,transparent);backdrop-filter:saturate(1.4) blur(8px)}
.hdr.is-condensed{box-shadow:0 6px 24px -18px rgba(0,0,0,.5)}
.brand{flex:none;display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand svg{flex:none;width:32px;height:32px}
.brand-t{display:flex;flex-direction:column;line-height:1.15;white-space:nowrap}
.brand-n{font-family:var(--serif);font-weight:600;font-size:19px}
.brand-s{font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--mut);font-weight:500}
.nav{display:none;gap:clamp(16px,1.8vw,28px);font-size:15px;font-weight:500;white-space:nowrap}
.nav a{text-decoration:none;color:var(--mut);padding:10px 0;position:relative}
.nav a:hover,.nav a[aria-current="page"]{color:var(--ink)}
.nav a[aria-current="page"]::after{content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;background:var(--acc)}
.hdr-actions{display:flex;align-items:center;gap:10px}
.lang{display:none;border:1px solid var(--line);border-radius:var(--r);font-size:13px;font-weight:600}
.lang a{min-height:34px;display:grid;place-items:center;padding:0 10px;text-decoration:none;color:var(--mut)}
.lang a[aria-current="true"]{background:var(--ink);color:var(--bg)}
.lang a:not([aria-current]):hover{color:var(--ink)}
.icon-btn{width:44px;height:44px;display:grid;place-items:center;border:1px solid var(--line);border-radius:var(--r);background:transparent;color:var(--ink);cursor:pointer;padding:0}
.icon-btn:hover{border-color:var(--mut)}
.hdr-cta{display:none}
.menu-btn{display:grid}
@media (min-width:1000px){
  .nav,.lang,.hdr-cta{display:flex}
  .menu-btn{display:none}
}
@media (max-width:380px){.brand-s{display:none}.brand-n{font-size:17px}}

/* Off-canvas */
.drawer{position:fixed;inset:0;z-index:60;visibility:hidden}
.drawer.is-open{visibility:visible}
.drawer-bg{position:absolute;inset:0;background:rgba(10,20,17,.5);opacity:0;transition:opacity .25s}
.drawer.is-open .drawer-bg{opacity:1}
.drawer-panel{position:absolute;top:0;right:0;bottom:0;width:min(360px,88%);background:var(--bg);border-left:1px solid var(--line);display:flex;flex-direction:column;padding:16px 24px max(24px,env(safe-area-inset-bottom));box-shadow:-12px 0 40px rgba(0,0,0,.18);transform:translateX(100%);transition:transform .3s cubic-bezier(.2,.7,.2,1);overflow-y:auto}
.drawer.is-open .drawer-panel{transform:none}
.drawer-top{display:flex;justify-content:flex-end;min-height:56px;align-items:center}
.drawer nav{display:flex;flex-direction:column;margin-top:8px}
.drawer nav a{padding:14px 0;border-bottom:1px solid var(--line);text-decoration:none;font-family:var(--serif);font-size:26px}
.drawer nav a[aria-current="page"]{color:var(--acc-t)}
.drawer-lang{display:flex;gap:8px;margin-top:24px;font-size:14px;font-weight:600}
.drawer-lang a{min-height:44px;min-width:56px;display:grid;place-items:center;border:1px solid var(--line);border-radius:var(--r);text-decoration:none;color:var(--mut)}
.drawer-lang a[aria-current="true"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.drawer .btn{margin-top:auto;width:100%}
.drawer-spacer{flex:1;min-height:24px}
body.no-scroll{overflow:hidden}

/* Sections */
.sec{padding-top:var(--sec);padding-bottom:var(--sec)}
.sec-line{border-top:1px solid var(--line)}
.sec-sf{background:var(--sf)}
.sec-head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:40px}
.sec-head>div{max-width:680px}
.sec-head .h2{margin:10px 0 14px}
.sec-head p:last-child{margin:0;color:var(--mut)}

/* Home hero */
.hero{display:flex;flex-wrap:wrap;gap:clamp(40px,5vw,72px);align-items:center;padding-top:clamp(48px,7vw,104px);padding-bottom:clamp(40px,5vw,72px)}
.hero-text{flex:1 1 420px;min-width:0}
.hero .h1{margin:18px 0 24px;max-width:12ch}
.hero .lead{margin:0 0 32px;max-width:50ch}
.diamond-note{display:flex;align-items:center;gap:10px;margin:28px 0 0;font-size:15px;color:var(--mut)}
.diamond-note::before{content:"";width:7px;height:7px;background:var(--acc);transform:rotate(45deg);flex:none}

/* Waterfall card */
.wf{flex:1 1 440px;min-width:0;margin:0;background:var(--sf);border:1px solid var(--line);border-radius:var(--rc);padding:clamp(18px,2vw,28px)}
.wf-top{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-bottom:18px}
.wf figcaption{font-family:var(--serif);font-size:20px;font-weight:500}
.seg{display:flex;padding:3px;background:var(--bg);border:1px solid var(--line);border-radius:4px}
.seg button{min-height:40px;padding:0 14px;border:0;border-radius:var(--r);cursor:pointer;font:600 14px var(--sans);background:transparent;color:var(--mut);transition:background-color .2s,color .2s}
.seg button[aria-pressed="true"]{background:var(--pri);color:var(--on)}
.wf-row{display:grid;grid-template-columns:minmax(0,42%) minmax(0,1fr) 56px;gap:14px;align-items:center;padding:8px 0;border-bottom:1px solid var(--line);font-size:14.5px}
.wf-l{line-height:1.3;color:var(--mut)}
.wf-row.is-t .wf-l,.wf-row.is-k .wf-l{font-weight:600;color:var(--ink)}
.wf-track{position:relative;height:16px;border-left:1px solid var(--line)}
.wf-bar{position:absolute;top:3px;bottom:3px;left:0;width:0;background:var(--ter);border-radius:2px;transition:left .7s cubic-bezier(.2,.7,.2,1),width .7s cubic-bezier(.2,.7,.2,1),background-color .4s}
.wf-row.is-t .wf-bar{top:0;bottom:0;background:var(--pri)}
.wf-row.is-k .wf-bar{top:0;bottom:0;background:var(--acc)}
.wf-v{text-align:right;font-variant-numeric:tabular-nums;color:var(--ink)}
.wf-row.is-c .wf-v{color:var(--ter)}
.wf-row.is-t .wf-v,.wf-row.is-k .wf-v{font-weight:600}
.wf-cap{margin:16px 0 0;font-size:14.5px;min-height:2.6em}
.wf-unit{margin:6px 0 0}

/* KPI strip */
.kstrip{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.kstrip div{padding:22px 20px 22px 0}
.kstrip dt{margin:0;font-size:12.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--mut);font-weight:600}
.kstrip dd{margin:4px 0 0;font-family:var(--serif);font-size:clamp(34px,3.4vw,46px);line-height:1.1;color:var(--acc);font-variant-numeric:lining-nums tabular-nums}
.kstrip{margin:0}

.quote{margin:0;font-family:var(--serif);font-weight:400;font-size:clamp(26px,3vw,40px);line-height:1.25;letter-spacing:-.01em;max-width:30ch}
.quote em{color:var(--acc-t)}

/* Service cards */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,240px),1fr));gap:16px}
.card{display:flex;flex-direction:column;gap:10px;padding:26px;background:var(--sf);border:1px solid var(--line);border-radius:var(--rc);text-decoration:none;color:var(--ink);transition:border-color .2s,transform .2s}
.card:hover{border-color:var(--acc);color:var(--ink)}
.card-n{font-family:var(--serif);font-size:28px;color:var(--acc);line-height:1}
.card-t{font-family:var(--serif);font-size:23px;font-weight:500;line-height:1.2;margin-top:12px}
.card-p{font-size:15.5px;color:var(--mut);flex:1}
.card-more{font-size:14px;font-weight:600;margin-top:10px}

/* Ladder (teaser) */
.lad{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px}
.lad li{display:flex;justify-content:space-between;flex-wrap:wrap;gap:4px 16px;padding:13px 16px;border:1px solid var(--line);border-left:3px solid var(--acc);background:var(--bg);font-size:15.5px}
.lad li b{font-weight:600}
.lad li span{color:var(--mut)}
.lad li.is-key{background:var(--block);color:var(--on-block);border-color:var(--block);border-left-color:var(--acc-block)}
.lad li.is-key span{color:var(--on-block)}
.lad li:nth-child(2){margin-left:clamp(8px,1.4vw,20px)}
.lad li:nth-child(3){margin-left:clamp(16px,2.8vw,40px)}
.lad li:nth-child(4){margin-left:clamp(24px,4.2vw,60px)}
.lad li:nth-child(5){margin-left:clamp(32px,5.6vw,80px)}

/* Steps (teaser) */
.split{display:flex;flex-wrap:wrap;gap:clamp(40px,6vw,96px)}
.split>*{flex:1 1 380px;min-width:0}
.steps{list-style:none;margin:0;padding:0;display:flex;flex-direction:column}
.steps li{display:grid;grid-template-columns:44px 1fr;gap:18px;padding-bottom:28px}
.steps li:last-child{padding-bottom:0}
.dot{width:44px;height:44px;border-radius:50%;background:var(--pri);color:var(--on);display:grid;place-items:center;font-family:var(--serif);font-size:20px}
.dot.o{background:transparent;border:1.5px solid var(--pri);color:var(--ink)}
.steps h3{margin:8px 0 6px;font-size:22px}
.steps p{margin:0;color:var(--mut);font-size:15.5px}

/* KPI grid */
.kgrid{margin:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,250px),1fr));border-top:1px solid var(--line);border-left:1px solid var(--line)}
.kgrid>div{padding:20px 22px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.kgrid dt{font-family:var(--serif);font-size:22px;font-weight:500}
.kgrid dd{margin:4px 0 0;font-size:15px;color:var(--mut)}
.kgrid .f{display:block;margin-top:8px;font-size:13.5px;color:var(--acc-t);font-variant-numeric:tabular-nums}

/* Panels */
.panel{display:flex;flex-wrap:wrap;gap:32px 64px;padding:clamp(24px,3.5vw,44px);background:var(--sf);border:1px solid var(--line);border-radius:var(--rc)}
.panel>*{flex:1 1 340px;min-width:0}
.panel h2,.panel h3{font-size:clamp(24px,2.4vw,30px);line-height:1.15;margin:0 0 10px}
.chips{display:flex;flex-wrap:wrap;gap:8px;font-size:14.5px;font-weight:500;margin:0;padding:0;list-style:none}
.chips li{padding:6px 12px;border:1px solid var(--line);border-radius:var(--r);background:var(--bg)}
.chips li.more{border:0;background:none;color:var(--mut);padding:6px 4px;font-weight:400}
.label{margin:0 0 10px;font-size:12.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--mut);font-weight:600}

/* Contact block */
.cblock{display:flex;flex-wrap:wrap;background:var(--block);color:var(--on-block);border-radius:var(--rc);overflow:hidden}
.cblock-t{flex:1 1 420px;min-width:0;padding:clamp(28px,4.5vw,64px)}
.cblock .eyebrow{color:var(--acc-block)}
.cblock h2{font-size:clamp(32px,3.8vw,52px);line-height:1.05;letter-spacing:-.015em;margin:12px 0 16px}
.cblock p{max-width:50ch}
.cblock a:not(.btn){color:var(--on-block);text-decoration-color:var(--acc-block)}
.cblock-img{flex:1 1 320px;min-height:300px;background:repeating-linear-gradient(135deg,rgba(255,255,255,.06) 0 10px,rgba(255,255,255,0) 10px 20px),rgba(0,0,0,.12);display:flex;align-items:flex-end;padding:20px}
.cblock-img .ph{color:var(--on-block);border-color:var(--acc-block);background:rgba(0,0,0,.25)}

/* Page hero */
.phero{padding-top:clamp(40px,6vw,88px);padding-bottom:clamp(32px,4vw,56px)}
.phero .h1-page{margin:14px 0 20px;max-width:20ch}
.phero .lead{margin:0}
.crumbs{font-size:14px;color:var(--mut);margin-bottom:28px}
.crumbs ol{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:6px}
.crumbs li+li::before{content:"/";margin-right:6px;color:var(--line)}
.crumbs a{text-decoration:none;color:var(--mut)}
.crumbs a:hover{color:var(--ink)}

/* Services detail */
.svc{display:grid;grid-template-columns:1fr;gap:28px;padding:clamp(40px,5vw,72px) 0;border-top:1px solid var(--line)}
@media (min-width:900px){.svc{grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:64px}}
.svc-n{font-family:var(--serif);font-size:44px;color:var(--acc);line-height:1}
.svc h2{font-size:clamp(28px,3vw,40px);line-height:1.1;margin:14px 0 14px}
.svc dl{margin:0;display:grid;gap:22px}
.svc dt{font-size:12.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--acc-t);font-weight:600;margin-bottom:6px}
.svc dd{margin:0}
.ticks{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.ticks li{position:relative;padding-left:26px}
.ticks li::before{content:"";position:absolute;left:2px;top:.62em;width:9px;height:5px;border-left:2px solid var(--acc);border-bottom:2px solid var(--acc);transform:rotate(-45deg) translateY(-3px)}
.svc-acc{display:none}

/* Interactive ladder (method page) */
.ladder-x{display:grid;gap:28px}
@media (min-width:980px){.ladder-x{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:56px;align-items:start}}
.lx{display:flex;flex-direction:column;gap:6px}
.lx details{border:1px solid var(--line);border-left:3px solid var(--acc);background:var(--sf);border-radius:2px}
.lx details:nth-child(2){margin-left:clamp(8px,1.4vw,20px)}
.lx details:nth-child(3){margin-left:clamp(16px,2.8vw,40px)}
.lx details:nth-child(4){margin-left:clamp(24px,4.2vw,60px)}
.lx details:nth-child(5){margin-left:clamp(32px,5.6vw,80px)}
.lx summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:12px;padding:14px 16px;min-height:52px}
.lx summary::-webkit-details-marker{display:none}
.lx summary b{font-weight:600}
.lx summary span{color:var(--mut);font-size:15px;margin-left:auto;text-align:right}
.lx summary::after{content:"";flex:none;width:9px;height:9px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg) translateY(-3px);transition:transform .2s}
.lx details[open] summary::after{transform:rotate(-135deg) translateY(-1px)}
.lx details.is-key{background:var(--block);color:var(--on-block);border-color:var(--block);border-left-color:var(--acc-block)}
.lx details.is-key summary span{color:var(--on-block)}
.lx .lx-b{padding:0 16px 16px;font-size:15.5px;color:var(--mut)}
.lx details.is-key .lx-b{color:var(--on-block)}
.lx details[open]{box-shadow:0 8px 24px -18px rgba(0,0,0,.4)}
.wf-big .wf-row{grid-template-columns:minmax(0,40%) minmax(0,1fr) 60px}
.wf-row.is-hl{background:color-mix(in srgb,var(--acc) 10%,transparent)}

.note{border:1px solid var(--line);border-left:3px solid var(--acc);background:var(--sf);border-radius:var(--rc);padding:22px 24px}
.note h3{font-size:21px;margin:0 0 6px}
.note p{margin:0;color:var(--mut);font-size:15.5px}

/* Stepper */
.stepper{list-style:none;margin:0;padding:0;position:relative;display:grid;gap:32px;--p:0}
.stepper::before,.stepper::after{content:"";position:absolute;left:21px;top:22px;bottom:22px;width:2px;background:var(--line)}
.stepper::after{background:var(--acc);bottom:auto;height:calc((100% - 44px) * var(--p));transition:height .2s linear}
.stepper li{position:relative;display:grid;grid-template-columns:44px 1fr;gap:20px;z-index:1}
.stepper .dot{transition:background-color .3s,color .3s,border-color .3s}
.stepper li:not(.is-on) .dot{background:var(--bg);border:1.5px solid var(--pri);color:var(--ink)}
.stepper h3{margin:6px 0 6px;font-size:23px}
.stepper p{margin:0;color:var(--mut)}
.stepper small{display:block;font-size:12.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--acc-t);font-weight:600}
@media (min-width:900px){
  .stepper{grid-template-columns:repeat(4,minmax(0,1fr));gap:28px}
  .stepper::before,.stepper::after{left:22px;right:22px;top:21px;bottom:auto;width:auto;height:2px}
  .stepper::after{right:auto;width:calc((100% - 44px) * var(--p));height:2px;transition:width .2s linear}
  .stepper li{grid-template-columns:1fr;gap:14px}
}

/* Calculator */
.calc{display:grid;gap:24px}
@media (min-width:980px){.calc{grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:40px;align-items:start}}
.calc-in,.calc-out{background:var(--sf);border:1px solid var(--line);border-radius:var(--rc);padding:clamp(18px,2.4vw,30px)}
.calc-out{position:sticky;top:calc(var(--hdr) + 16px)}
.calc-fields{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,190px),1fr));gap:14px 16px;margin-top:18px}
.calc fieldset{border:0;margin:0;padding:0;min-width:0}
.calc legend{font-weight:600;font-size:14px;margin-bottom:8px;padding:0}
.calc-res{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,150px),1fr));gap:0;margin:16px 0 0;border-top:1px solid var(--line);border-left:1px solid var(--line)}
.calc-res>div{padding:14px 16px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);position:relative}
.calc-res dt{font-size:12.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--mut);font-weight:600;display:flex;align-items:center;gap:6px}
.calc-res dd{margin:2px 0 0;font-family:var(--serif);font-size:clamp(24px,2.4vw,30px);line-height:1.15;color:var(--acc);font-variant-numeric:lining-nums tabular-nums}
.calc-res .is-gop dd{color:var(--ink)}
.fx{width:24px;height:24px;border-radius:50%;border:1px solid var(--line);background:var(--bg);color:var(--mut);font:italic 600 12px/1 var(--serif);cursor:help;display:inline-grid;place-items:center;padding:0;position:relative}
.fx::before{content:"";position:absolute;inset:-10px}
.fx:hover,.fx:focus-visible,.fx[aria-expanded="true"]{color:var(--ink);border-color:var(--acc)}
.tip{position:absolute;left:12px;right:12px;top:calc(100% - 6px);z-index:5;background:var(--ink);color:var(--bg);font-size:13px;line-height:1.4;padding:8px 10px;border-radius:4px;box-shadow:0 8px 20px rgba(0,0,0,.2)}
.tip[hidden]{display:none}
.calc-warn{color:var(--err);font-weight:600;font-size:14.5px;margin:12px 0 0}
.calc-warn:empty{display:none}
.calc-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;margin-top:16px}

/* Forms */
.field{display:flex;flex-direction:column;gap:6px;min-width:0}
.field label,.field .lbl{font-weight:600;font-size:14.5px}
.field .hint{font-size:13.5px;color:var(--mut)}
.req{color:var(--err);margin-left:2px}
input,select,textarea{font:inherit;font-size:16px;color:var(--ink);background:var(--bg);border:1px solid var(--field);border-radius:var(--r);padding:11px 12px;min-height:48px;width:100%}
textarea{min-height:150px;resize:vertical;line-height:1.5}
select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--mut) 50%),linear-gradient(135deg,var(--mut) 50%,transparent 50%);background-position:calc(100% - 20px) 50%,calc(100% - 15px) 50%;background-size:5px 5px;background-repeat:no-repeat;padding-right:36px}
input:focus,select:focus,textarea:focus{outline:2px solid var(--acc);outline-offset:1px;border-color:var(--acc)}
[aria-invalid="true"]{border-color:var(--err);box-shadow:inset 0 0 0 1px var(--err)}
.ferr{color:var(--err);font-size:14px;font-weight:600;min-height:0}
.ferr:empty{display:none}
.unit-in{position:relative}
.unit-in input{padding-right:58px;text-align:right;font-variant-numeric:tabular-nums}
.unit-in span{position:absolute;right:12px;top:50%;transform:translateY(-50%);font-size:13px;color:var(--mut);pointer-events:none}
.check{display:grid;grid-template-columns:24px 1fr;gap:12px;align-items:start;font-size:15px;cursor:pointer}
.check input{width:22px;height:22px;min-height:0;margin:2px 0 0;accent-color:var(--pri);padding:0}
.hp{position:absolute!important;left:-10000px!important;width:1px;height:1px;overflow:hidden}
.form-grid{display:grid;grid-template-columns:1fr;gap:18px}
@media (min-width:680px){.form-grid{grid-template-columns:1fr 1fr}.form-grid .full{grid-column:1/-1}}
.alert{border-radius:var(--rc);padding:16px 18px;font-size:15.5px;border:1px solid;display:block;margin:0}
.alert:empty,.alert[hidden]{display:none}
.alert-err{border-color:var(--err);color:var(--err);background:color-mix(in srgb,var(--err) 7%,var(--sf))}
.alert-ok{border-color:var(--ok);color:var(--ink);background:color-mix(in srgb,var(--ok) 9%,var(--sf))}
.alert-ok h3{font-size:22px;margin:0 0 4px;color:var(--ok)}
.alert a{color:inherit;font-weight:600}
.spinner{width:18px;height:18px;border:2px solid currentColor;border-right-color:transparent;border-radius:50%;animation:spin .8s linear infinite;display:none}
.is-loading .spinner{display:inline-block}
@keyframes spin{to{transform:rotate(360deg)}}
.turnstile-ph{min-height:65px;border:1px dashed var(--line);border-radius:var(--r);display:flex;align-items:center;padding:0 14px;font-size:13.5px;color:var(--mut)}
.contact-grid{display:grid;gap:28px}
@media (min-width:980px){.contact-grid{grid-template-columns:minmax(0,7fr) minmax(0,4fr);gap:48px;align-items:start}}
.dl-contact{margin:0;display:grid;gap:16px}
.dl-contact dt{font-size:12.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--mut);font-weight:600}
.dl-contact dd{margin:2px 0 0;font-size:18px}
.dl-contact a{text-decoration:none}
.dl-contact a:hover{text-decoration:underline}
.map{display:block;border:1px solid var(--line);border-radius:var(--rc);overflow:hidden;background:var(--bg)}
.map svg{display:block;width:100%;height:auto}

/* FAQ */
.faq{border-top:1px solid var(--line);max-width:860px}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:20px;padding:20px 0;font-family:var(--serif);font-size:clamp(20px,2vw,23px);line-height:1.3;min-height:56px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";flex:none;width:32px;height:32px;border:1px solid var(--line);border-radius:50%;display:grid;place-items:center;font:400 20px/1 var(--sans);color:var(--acc-t);transition:transform .2s}
.faq details[open] summary::after{content:"−"}
.faq summary:hover{color:var(--acc-t)}
.faq .ans{padding:0 0 22px;color:var(--mut);max-width:70ch}
.faq .ans p{margin:0}

/* About */
.about{display:grid;gap:32px}
@media (min-width:900px){.about{grid-template-columns:minmax(0,4fr) minmax(0,7fr);gap:64px;align-items:start}}
.portrait{aspect-ratio:4/5;border-radius:var(--rc);border:1px solid var(--line);background:repeating-linear-gradient(135deg,rgba(154,116,48,.08) 0 10px,transparent 10px 20px),var(--sf);display:flex;align-items:flex-end;padding:18px}
.agrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,230px),1fr));gap:16px}
.agrid div{padding:22px;background:var(--sf);border:1px solid var(--line);border-radius:var(--rc)}
.agrid h3{font-size:21px;margin:0 0 6px}
.agrid p{margin:0;color:var(--mut);font-size:15.5px}

/* Legal / prose */
.prose{max-width:72ch}
.prose h2{font-size:clamp(22px,2.2vw,27px);margin:40px 0 10px;line-height:1.2}
.prose h2.part{font-size:clamp(26px,3vw,34px);margin-top:56px;padding-top:28px;border-top:1px solid var(--line)}
.prose p{margin:0 0 14px}
.prose .upd{color:var(--mut);font-size:14.5px;margin-bottom:8px}
.legal-wrap{display:grid;gap:32px}
@media (min-width:1080px){.legal-wrap{grid-template-columns:240px minmax(0,1fr);gap:64px;align-items:start}}
.toc{font-size:14.5px}
@media (min-width:1080px){.toc{position:sticky;top:calc(var(--hdr) + 24px)}}
.toc ol{list-style:none;margin:8px 0 0;padding:0;display:grid;gap:2px;border-left:1px solid var(--line)}
.toc a{display:block;padding:6px 0 6px 14px;text-decoration:none;color:var(--mut);margin-left:-1px;border-left:2px solid transparent}
.toc a:hover,.toc a.is-active{color:var(--ink);border-left-color:var(--acc)}
.tbl-wrap{overflow-x:auto;margin:8px 0 18px;border:1px solid var(--line);border-radius:var(--rc)}
table{border-collapse:collapse;width:100%;font-size:14.5px;min-width:560px}
th,td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:top}
th{font-size:12.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--mut);background:var(--sf)}
tr:last-child td{border-bottom:0}
td code{font-size:13.5px}
.facts{margin:0;display:grid;border-top:1px solid var(--line);max-width:860px}
.facts>div{display:grid;grid-template-columns:1fr;gap:2px;padding:14px 0;border-bottom:1px solid var(--line)}
@media (min-width:640px){.facts>div{grid-template-columns:200px 1fr;gap:24px}}
.facts dt{font-weight:600}
.facts dd{margin:0}

/* 404 */
.nf{min-height:55vh}
.nf-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}

/* Footer */
.ftr{border-top:1px solid var(--line);font-size:14.5px;color:var(--mut);margin-top:0}
.ftr-grid{padding-top:48px;padding-bottom:32px;display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:32px}
.ftr-name{margin:0;font-family:var(--serif);font-size:19px;font-weight:600;color:var(--ink)}
.ftr p{margin:4px 0 0}
.ftr nav,.ftr .col{display:flex;flex-direction:column;gap:2px}
.ftr h2{margin:0 0 6px;font:600 12px/1.4 var(--sans);letter-spacing:.12em;text-transform:uppercase;color:var(--ink)}
.ftr a{text-decoration:none;padding:6px 0;display:inline-block}
.ftr a:hover{color:var(--ink);text-decoration:underline}
.ftr-bot{padding-top:20px;padding-bottom:max(36px,env(safe-area-inset-bottom));border-top:1px solid var(--line);display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:13px}

/* Reveal + reduced motion */
.js .rv{opacity:0;transform:translateY(14px);transition:opacity .6s ease,transform .6s cubic-bezier(.2,.7,.2,1)}
.js .rv.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important;scroll-behavior:auto!important}
  .js .rv{opacity:1;transform:none}
}
@media print{.hdr,.ftr,.drawer,.skip,.btn,.calc-actions{display:none!important}body{background:#fff;color:#000}}

/* Radio segmented control (calculator) */
.seg-radio{display:inline-flex;flex-wrap:wrap}
.seg-r{position:relative;display:inline-flex}
.seg-r input{position:absolute;opacity:0;width:1px;height:1px;min-height:0;padding:0;margin:0}
.seg-r span{min-height:40px;display:grid;place-items:center;padding:0 16px;border-radius:var(--r);cursor:pointer;font:600 14px var(--sans);color:var(--mut);transition:background-color .2s,color .2s}
.seg-r input:checked+span{background:var(--pri);color:var(--on)}
.seg-r input:focus-visible+span{outline:2px solid var(--acc);outline-offset:2px}
.calc-avail{font-size:13.5px;color:var(--mut);margin:12px 0 0}
.legal-wrap>*{min-width:0}

/* About us: company profile */
.profile{display:grid;gap:32px}
@media (min-width:900px){.profile{grid-template-columns:minmax(0,7fr) minmax(0,4fr);gap:64px;align-items:start}}
.profile-t .h2{margin-bottom:18px}
.profile-t p{margin:0 0 16px;max-width:64ch}
.profile-t p:first-of-type{font-size:clamp(18px,1.6vw,20px)}
.profile-f{background:var(--sf);border:1px solid var(--line);border-radius:var(--rc);padding:26px;display:flex;flex-direction:column;gap:22px}
.profile-f .ticks{gap:12px;font-weight:500}
@media (min-width:900px){.profile-f{position:sticky;top:calc(var(--hdr) + 24px)}}
@media (min-width:760px){.agrid-2{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:980px){.agrid-3{grid-template-columns:repeat(3,minmax(0,1fr))}}
.chips-lg{font-size:16px}
.chips-lg li{padding:10px 18px}

/* Blu Lario accents */
.lad li,.lx details{border-left-color:var(--hl)}.lad li.is-key,.lx details.is-key{border-left-color:var(--acc-block)}.chips li{border-color:color-mix(in srgb,var(--hl) 45%,var(--line))}
.chips-lg li:last-child{background:var(--pri);color:var(--on);border-color:var(--pri)}
.cblock-img{align-items:center;justify-content:center;background:color-mix(in srgb,var(--block) 82%,#000)}
.cb-art{width:min(100%,340px);height:auto}