:root{--iw-navy:#092b2e;--iw-teal:#0f5d59;--iw-cyan:#16a6a1;--iw-orange:#ef6a2c;--iw-paper:#f7f8f5;--iw-line:#b9ccca;--iw-ink:#0b3336;--iw-muted:#557174}
.inverter-workshop-page{background:linear-gradient(180deg,#eef5f4 0,#f8f8f4 42rem);color:var(--iw-ink)}
.iw-wrap{width:min(1180px,calc(100% - 32px));margin-inline:auto}
.iw-hero{margin:28px auto 20px;padding:clamp(28px,5vw,68px);border-radius:32px;background:radial-gradient(circle at 85% 20%,rgba(22,166,161,.28),transparent 34%),linear-gradient(135deg,#08282c,#0b4042 68%,#0c5551);color:#fff;box-shadow:0 24px 60px rgba(8,40,44,.2)}
.iw-kicker,.iw-section-kicker{font:800 .78rem/1.2 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.15em;text-transform:uppercase;color:#ff9a68}
.iw-hero h1{max-width:820px;margin:.45rem 0 1rem;font-size:clamp(2.35rem,6vw,5.4rem);line-height:.94;letter-spacing:-.055em}
.iw-hero p{max-width:780px;margin:0;font-size:clamp(1rem,2vw,1.25rem);line-height:1.65;color:#dcebea}
.iw-hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}.iw-hero-meta span{padding:9px 13px;border:1px solid rgba(255,255,255,.24);border-radius:999px;background:rgba(255,255,255,.08);font-size:.86rem}
.iw-nav{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:0 auto 28px}.iw-nav a{min-height:92px;padding:18px;border:1px solid var(--iw-line);border-radius:18px;background:#fff;color:var(--iw-ink);text-decoration:none;box-shadow:0 10px 26px rgba(8,40,44,.07)}.iw-nav b{display:block;margin-bottom:8px;color:var(--iw-orange);font:800 .72rem/1 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.12em}.iw-nav strong{font-size:1.05rem}.iw-nav a:hover,.iw-nav a:focus-visible{border-color:var(--iw-orange);transform:translateY(-2px)}
.iw-section{margin:24px auto;padding:clamp(22px,4vw,44px);border:1px solid #d6e1df;border-radius:28px;background:rgba(255,255,255,.9);color:var(--iw-ink);box-shadow:0 16px 40px rgba(8,40,44,.07)}
.iw-section-head{display:grid;grid-template-columns:minmax(0,1fr) minmax(240px,.55fr);gap:26px;align-items:end;margin-bottom:24px}.iw-section h2{margin:.35rem 0 0;font-size:clamp(1.8rem,4vw,3.3rem);line-height:1;letter-spacing:-.045em}.iw-section-head p{margin:0;color:var(--iw-muted)!important;line-height:1.6}
.iw-matrix-tools{display:flex;flex-wrap:wrap;gap:12px;margin:0 0 18px}.iw-matrix-tools label{display:grid;gap:6px;min-width:210px;font-weight:750}.iw-matrix-tools select{min-height:48px;padding:0 42px 0 14px;border:1px solid #8fb0ad;border-radius:12px;background:#fff;color:var(--iw-ink);font:inherit}
.iw-matrix{display:grid;gap:12px}.iw-case{display:grid;grid-template-columns:180px 1fr 1fr 170px;gap:18px;padding:20px;border:1px solid #ccdbd9;border-radius:18px;background:#fbfcfa}.iw-case[hidden]{display:none}.iw-case-code{font:800 .83rem/1.35 ui-monospace,SFMono-Regular,Menlo,monospace;color:var(--iw-orange);text-transform:uppercase}.iw-case h3{margin:0 0 7px;font-size:1.12rem}.iw-case p,.iw-case ul{margin:0;color:#405f61;line-height:1.55}.iw-case ul{padding-left:19px}.iw-case a{align-self:start;min-height:44px;padding:11px 14px;border:1px solid #76a19e;border-radius:12px;color:#0b504d;font-weight:800;text-decoration:none;text-align:center}.iw-case a:hover,.iw-case a:focus-visible{background:#e3f0ef}
.iw-source-note{margin:16px 0 0;padding:14px 16px;border-left:4px solid var(--iw-orange);background:#fff3eb;color:#573a2d;line-height:1.55}
.iw-integration-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.iw-integration,.iw-integration-grid>article{padding:22px;border:1px solid #cbdad8;border-radius:20px;background:#f9fbfa;color:var(--iw-ink)}.iw-integration h3,.iw-integration-grid>article h3{margin:0 0 10px;font-size:1.3rem;color:var(--iw-ink)}.iw-integration ol,.iw-integration ul,.iw-integration-grid>article ol,.iw-integration-grid>article ul{margin:0;padding-left:20px;color:#405f61;line-height:1.65}.iw-integration li,.iw-integration-grid>article li{color:#405f61!important}.iw-integration .iw-flow{display:flex;flex-wrap:wrap;gap:7px;align-items:center;margin:16px 0}.iw-flow span{padding:8px 10px;border-radius:9px;background:#e4f0ef;color:#315556;font:700 .75rem/1.2 ui-monospace,SFMono-Regular,Menlo,monospace}.iw-flow b{color:var(--iw-orange)}.iw-integration a,.iw-integration-grid>article a{display:inline-flex;align-items:center;min-height:44px;margin-top:14px;color:#0b504d;font-weight:800}
.iw-warning{padding:18px 20px;border-radius:16px;background:#102f31;color:#e8f2f1}.iw-warning strong{color:#ff9866}.iw-warning p{margin:.45rem 0 0;line-height:1.55}
.iw-calculator{display:grid;grid-template-columns:1.1fr .9fr;gap:22px}.iw-form-card{padding:22px;border:1px solid #cbdad8;border-radius:20px;background:#f9fbfa}.iw-form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.iw-form-grid label{display:grid;gap:6px;font-weight:750}.iw-form-grid input,.iw-form-grid select,.iw-log input{width:100%;min-height:48px;padding:10px 12px;border:1px solid #8fb0ad;border-radius:11px;background:#fff;color:var(--iw-ink);font:inherit}.iw-button{min-height:48px;padding:11px 18px;border:1px solid #0c6964;border-radius:12px;background:#fff;color:#0a514e;font:800 1rem/1 inherit;cursor:pointer}.iw-button--primary{background:var(--iw-orange);border-color:var(--iw-orange);color:#142f31}.iw-form-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}.iw-result{min-height:128px;padding:20px;border-radius:18px;background:#0c3335;color:#fff}.iw-result h3{margin:0 0 8px}.iw-result p{margin:0;color:#dbeceb;line-height:1.6}.iw-result.is-ok{background:#155949}.iw-result.is-stop{background:#6a2e25}
.iw-log{overflow-x:auto}.iw-log table{width:100%;min-width:760px;border-collapse:separate;border-spacing:0 9px}.iw-log th{padding:0 10px;text-align:left;color:var(--iw-muted);font-size:.78rem;text-transform:uppercase;letter-spacing:.08em}.iw-log td{padding:0 5px}.iw-log .iw-remove{min-width:44px;min-height:44px;border:1px solid #b3c8c5;border-radius:10px;background:#fff;color:#8a3d2c;font-weight:900;cursor:pointer}
.iw-sources{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.iw-source{padding:18px;border:1px solid #cbdad8;border-radius:16px;background:#fff}.iw-source strong{display:block;margin-bottom:7px}.iw-source a{display:inline-flex;min-height:44px;align-items:center;color:#0b504d;font-weight:800}
.advanced-workshop-teaser{display:grid;grid-template-columns:1fr auto;gap:20px;align-items:center;margin:24px 0 6px;padding:22px 24px;border:1px solid rgba(255,255,255,.28);border-radius:20px;background:linear-gradient(135deg,rgba(9,43,46,.96),rgba(15,93,89,.94));color:#fff;text-decoration:none;box-shadow:0 18px 38px rgba(3,25,27,.2)}.advanced-workshop-teaser small{display:block;margin-bottom:7px;color:#ff9a68;font:800 .72rem/1 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.13em}.advanced-workshop-teaser strong{display:block;font-size:clamp(1.2rem,2.2vw,1.8rem)}.advanced-workshop-teaser span{max-width:620px;color:#d9e8e7;line-height:1.45}.advanced-workshop-teaser b{padding:12px 16px;border-radius:12px;background:#fff;color:#0a4542;white-space:nowrap}
@media(max-width:880px){.iw-nav{grid-template-columns:repeat(2,1fr)}.iw-section-head,.iw-calculator{grid-template-columns:1fr}.iw-case{grid-template-columns:1fr 1fr}.iw-case-code,.iw-case a{grid-column:1/-1}.iw-sources{grid-template-columns:1fr 1fr}.advanced-workshop-teaser{grid-template-columns:1fr}.advanced-workshop-teaser b{justify-self:start}}
@media(max-width:580px){.iw-wrap{width:min(100% - 20px,1180px)}.iw-hero{border-radius:22px}.iw-nav,.iw-integration-grid,.iw-form-grid,.iw-sources{grid-template-columns:1fr}.iw-nav a{min-height:78px}.iw-section{border-radius:20px}.iw-case{grid-template-columns:1fr;padding:17px}.iw-case-code,.iw-case a{grid-column:auto}.iw-matrix-tools label{width:100%}.iw-button{width:100%}}
@media print{.refthe-header,.iw-hero,.iw-nav,.iw-matrix,.iw-integration-grid,.iw-calculator,.iw-sources,.iw-form-actions,.iw-section:not(#registro){display:none!important}.inverter-workshop-page{background:#fff}.iw-section{box-shadow:none;border:0;padding:0}.iw-log input{border:0;padding:4px}.iw-remove{display:none}}

/* Industrial Signal — ogni colore identifica una funzione operativa. */
.inverter-workshop-page{--iw-blue:#285ea8;--iw-cyan:#087f8c;--iw-amber:#a45b00;--iw-red:#b52f3a;--iw-violet:#6548a8;--iw-green:#16745b}
.iw-hero{background:radial-gradient(circle at 84% 14%,rgba(47,111,237,.3),transparent 29%),radial-gradient(circle at 68% 100%,rgba(217,149,24,.22),transparent 34%),linear-gradient(135deg,#062d33,#0b4d51 67%,#0c5f59)}
.iw-nav a{--iw-card:#285ea8;border-color:color-mix(in srgb,var(--iw-card) 48%,#d6e1df);background:linear-gradient(145deg,#fff,color-mix(in srgb,var(--iw-card) 8%,#fff));box-shadow:inset 0 4px var(--iw-card),0 10px 26px rgba(8,40,44,.07)}
.iw-nav a:nth-child(2){--iw-card:var(--iw-cyan)}.iw-nav a:nth-child(3){--iw-card:var(--iw-amber)}.iw-nav a:nth-child(4){--iw-card:var(--iw-violet)}
.iw-nav a:hover,.iw-nav a:focus-visible{border-color:var(--iw-card);box-shadow:inset 0 4px var(--iw-card),0 16px 30px color-mix(in srgb,var(--iw-card) 14%,transparent)}
.iw-nav b{color:var(--iw-card)}
.iw-case{--iw-case:var(--iw-amber);border-left:5px solid var(--iw-case);background:linear-gradient(100deg,color-mix(in srgb,var(--iw-case) 7%,#fbfcfa),#fbfcfa 34%)}
.iw-case:nth-child(2){--iw-case:var(--iw-red)}.iw-case:nth-child(3){--iw-case:var(--iw-violet)}.iw-case:nth-child(4){--iw-case:var(--iw-blue)}.iw-case:nth-child(5){--iw-case:#8b3e63}
.iw-case-code{color:var(--iw-case)}
.iw-case a{border-color:color-mix(in srgb,var(--iw-case) 55%,#fff);color:var(--iw-case)}
.iw-case a:hover,.iw-case a:focus-visible{background:color-mix(in srgb,var(--iw-case) 10%,#fff)}
.iw-integration,.iw-integration-grid>article{--iw-card:var(--iw-cyan);box-shadow:inset 0 4px var(--iw-card)}
.iw-integration:nth-child(2),.iw-integration-grid>article:nth-child(2){--iw-card:var(--iw-blue)}
.iw-integration:nth-child(3),.iw-integration-grid>article:nth-child(3){--iw-card:var(--iw-amber)}
.iw-integration:nth-child(4),.iw-integration-grid>article:nth-child(4){--iw-card:var(--iw-red)}
.iw-integration a,.iw-integration-grid>article a{color:var(--iw-card)}
.iw-form-card{border-top:5px solid var(--iw-amber);background:linear-gradient(145deg,#f9fbfa,#fff8ec)}
.iw-button--primary{background:var(--iw-orange);border-color:var(--iw-orange);color:#fff}
.iw-source{--iw-source:var(--iw-blue);border-top:4px solid var(--iw-source);background:linear-gradient(160deg,#fff,color-mix(in srgb,var(--iw-source) 6%,#fff))}
.iw-source:nth-child(2){--iw-source:var(--iw-violet)}.iw-source:nth-child(3){--iw-source:var(--iw-cyan)}
.iw-source a{color:var(--iw-source)}
.iw-result.is-ok{background:var(--iw-green)}.iw-result.is-stop{background:#7d2631}
@media(max-width:580px){.iw-case{border-left-width:4px}.iw-nav a{box-shadow:inset 4px 0 var(--iw-card),0 8px 20px rgba(8,40,44,.07)}.iw-integration,.iw-integration-grid>article{box-shadow:inset 4px 0 var(--iw-card)}}