/* ============================================================
   SOLIVO ENERGIA · design system
   Registro: artigiano bravo, ossatura da ingegnere.
   Carta tecnica chiara · blu silicio · rame di lattoneria.
   Font self-hosted (GDPR): Bricolage Grotesque / Figtree / IBM Plex Mono.
   Firma visiva: il "cartiglio" da disegno tecnico + linee di quota.
   ============================================================ */

/* ---------- Font ---------- */
@font-face { font-family: 'Bricolage Grotesque'; font-style: normal; font-weight: 600; font-display: swap; src: url('../fonts/bricolage-grotesque-latin-600-normal.woff2') format('woff2'); }
@font-face { font-family: 'Bricolage Grotesque'; font-style: normal; font-weight: 700; font-display: swap; src: url('../fonts/bricolage-grotesque-latin-700-normal.woff2') format('woff2'); }
@font-face { font-family: 'Bricolage Grotesque'; font-style: normal; font-weight: 800; font-display: swap; src: url('../fonts/bricolage-grotesque-latin-800-normal.woff2') format('woff2'); }
@font-face { font-family: 'Figtree'; font-style: normal; font-weight: 400; font-display: swap; src: url('../fonts/figtree-latin-400-normal.woff2') format('woff2'); }
@font-face { font-family: 'Figtree'; font-style: italic; font-weight: 400; font-display: swap; src: url('../fonts/figtree-latin-400-italic.woff2') format('woff2'); }
@font-face { font-family: 'Figtree'; font-style: normal; font-weight: 500; font-display: swap; src: url('../fonts/figtree-latin-500-normal.woff2') format('woff2'); }
@font-face { font-family: 'Figtree'; font-style: normal; font-weight: 600; font-display: swap; src: url('../fonts/figtree-latin-600-normal.woff2') format('woff2'); }
@font-face { font-family: 'Figtree'; font-style: normal; font-weight: 700; font-display: swap; src: url('../fonts/figtree-latin-700-normal.woff2') format('woff2'); }
@font-face { font-family: 'IBM Plex Mono'; font-style: normal; font-weight: 400; font-display: swap; src: url('../fonts/ibm-plex-mono-latin-400-normal.woff2') format('woff2'); }
@font-face { font-family: 'IBM Plex Mono'; font-style: normal; font-weight: 500; font-display: swap; src: url('../fonts/ibm-plex-mono-latin-500-normal.woff2') format('woff2'); }
@font-face { font-family: 'IBM Plex Mono'; font-style: normal; font-weight: 600; font-display: swap; src: url('../fonts/ibm-plex-mono-latin-600-normal.woff2') format('woff2'); }

/* ---------- Token ---------- */
:root {
  color-scheme: light;
  /* Colori */
  --carta: #FAFAF7;          /* fondo pagina, carta tecnica */
  --carta-scura: #F1EFE9;    /* sezioni alternate */
  --bianco: #FFFFFF;
  --inchiostro: #1C2430;     /* testo primario */
  --inchiostro-2: #4C5561;   /* testo secondario */
  --inchiostro-3: #7A828D;   /* didascalie */
  --blu: #173A5E;            /* blu silicio, primario brand */
  --blu-scuro: #10293F;
  --blu-chiaro: #EAF0F7;     /* fondo tinta blu */
  --rame: #A6551F;           /* rame di lattoneria, accento */
  --rame-vivo: #C26A2E;
  --rame-chiaro: #F7EEE4;
  --linea: #DDD9CE;          /* hairline */
  --linea-forte: #B9B4A6;
  --ok: #2E7D4F;
  --attenzione: #A6551F;
  /* Grafici (validati CVD, dataviz) */
  --graf-blu: #2E6DA8;
  --graf-ambra: #C8811A;
  --graf-griglia: #E7E4DB;
  /* Tipografia */
  --f-display: 'Bricolage Grotesque', 'Segoe UI', system-ui, sans-serif;
  --f-testo: 'Figtree', 'Segoe UI', system-ui, sans-serif;
  --f-mono: 'IBM Plex Mono', 'Consolas', monospace;
  /* Ritmo */
  --max: 1120px;
  --gutter: clamp(1.1rem, 4vw, 2rem);
  --sez: clamp(3.2rem, 8vw, 5.5rem);
  --raggio: 6px;
  --ombra: 0 1px 2px rgba(28,36,48,.06), 0 8px 24px rgba(28,36,48,.07);
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--f-testo);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--inchiostro);
  background: var(--carta);
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; height: auto; }
h1, h2, h3, h4 { font-family: var(--f-display); line-height: 1.12; color: var(--blu); margin: 0 0 .6em; letter-spacing: -.01em; }
h1 { font-size: clamp(2rem, 5.2vw, 3.15rem); font-weight: 800; }
h2 { font-size: clamp(1.5rem, 3.4vw, 2.1rem); font-weight: 700; }
h3 { font-size: clamp(1.15rem, 2.4vw, 1.35rem); font-weight: 700; }
h4 { font-size: 1.05rem; font-weight: 600; }
p { margin: 0 0 1em; }
a { color: var(--blu); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--rame); }
strong { font-weight: 700; }
small { color: var(--inchiostro-3); }
::selection { background: var(--blu); color: #fff; }
:focus-visible { outline: 3px solid var(--rame-vivo); outline-offset: 2px; border-radius: 2px; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
[hidden] { display: none !important; }

.contenitore { max-width: var(--max); margin-inline: auto; padding-inline: var(--gutter); }
.sezione { padding-block: var(--sez); }
.sezione--tinta { background: var(--carta-scura); }
.sezione--blu { background: var(--blu); color: #E8EDF4; }
.sezione--blu h2, .sezione--blu h3 { color: #fff; }
.sezione--blu a { color: #CFE0F2; }

/* Numeri e dati sempre in mono: l'ossatura da ingegnere */
.dato, .mono { font-family: var(--f-mono); font-weight: 500; letter-spacing: -.01em; }

/* ---------- Skip link ---------- */
.salta { position: absolute; left: -999px; top: 0; background: var(--blu); color: #fff; padding: .6rem 1rem; z-index: 100; }
.salta:focus { left: 0; }

/* ---------- Header ---------- */
.testata { position: sticky; top: 0; z-index: 50; background: rgba(250,250,247,.92); backdrop-filter: blur(8px); border-bottom: 1px solid var(--linea); }
.testata__riga { display: flex; align-items: center; gap: 1.2rem; min-height: 66px; }
.marchio { display: flex; align-items: center; gap: .55rem; text-decoration: none; color: var(--blu); }
.marchio:hover { color: var(--blu); }
.marchio svg { width: 34px; height: 34px; flex: none; }
.marchio__nome { font-family: var(--f-display); font-weight: 800; font-size: 1.35rem; letter-spacing: .01em; }
.marchio__nome span { color: var(--rame); }
.marchio__sotto { display: block; font-family: var(--f-mono); font-size: .58rem; font-weight: 500; letter-spacing: .14em; text-transform: uppercase; color: var(--inchiostro-3); margin-top: -2px; }
.nav-principale { margin-left: auto; }
.nav-principale ul { display: flex; gap: 1.4rem; list-style: none; margin: 0; padding: 0; align-items: center; }
.nav-principale a { text-decoration: none; font-weight: 600; font-size: .96rem; color: var(--inchiostro); }
.nav-principale a:not(.bottone):hover, .nav-principale a[aria-current="page"]:not(.bottone) { color: var(--rame); }
.nav-cta { margin-left: .4rem; }
.apri-menu { display: none; margin-left: auto; background: none; border: 1px solid var(--linea-forte); border-radius: var(--raggio); padding: .5rem .7rem; font: inherit; font-weight: 600; color: var(--blu); cursor: pointer; }

@media (max-width: 880px) {
  .apri-menu { display: inline-flex; align-items: center; gap: .45rem; }
  .nav-principale { display: none; position: absolute; top: 100%; left: 0; right: 0; background: var(--carta); border-bottom: 1px solid var(--linea); box-shadow: var(--ombra); margin: 0; }
  .nav-principale.aperta { display: block; }
  .nav-principale ul { flex-direction: column; align-items: stretch; gap: 0; padding: .5rem var(--gutter) 1rem; }
  .nav-principale li { border-bottom: 1px solid var(--linea); }
  .nav-principale li:last-child { border-bottom: 0; }
  .nav-principale a { display: block; padding: .85rem .2rem; font-size: 1.05rem; }
  .nav-cta { padding-top: .8rem; }
}

/* ---------- Bottoni ---------- */
.bottone { display: inline-block; font-family: var(--f-testo); font-weight: 700; font-size: 1rem; line-height: 1.2; text-decoration: none; text-align: center; padding: .8rem 1.4rem; border-radius: var(--raggio); border: 2px solid transparent; cursor: pointer; transition: background .15s, color .15s, border-color .15s; }
.bottone--pieno { background: var(--rame); color: #fff; }
.bottone--pieno:hover { background: var(--rame-vivo); color: #fff; }
.bottone--blu { background: var(--blu); color: #fff; }
.bottone--blu:hover { background: var(--blu-scuro); color: #fff; }
.bottone--contorno { background: transparent; color: var(--blu); border-color: var(--blu); }
.bottone--contorno:hover { background: var(--blu); color: #fff; }
.bottone--chiaro { background: #fff; color: var(--blu); border-color: #fff; }
.bottone--chiaro:hover { background: var(--blu-chiaro); border-color: var(--blu-chiaro); color: var(--blu); }
.bottone--grande { font-size: 1.1rem; padding: 1rem 1.8rem; }
.bottone[disabled] { opacity: .5; cursor: not-allowed; }

/* ---------- Eyebrow + linea di quota ---------- */
.occhiello { display: block; font-family: var(--f-mono); font-size: .78rem; font-weight: 600; letter-spacing: .16em; text-transform: uppercase; color: var(--rame); margin-bottom: .9rem; }
/* Linea di quota: hairline con tacche alle estremità, come una misura su un disegno */
.quota { position: relative; height: 1px; background: var(--linea-forte); margin: 1.2rem 0 1.6rem; max-width: 190px; }
.quota::before, .quota::after { content: ""; position: absolute; top: -4px; width: 1px; height: 9px; background: var(--linea-forte); }
.quota::before { left: 0; } .quota::after { right: 0; }
.sezione--blu .quota, .sezione--blu .quota::before, .sezione--blu .quota::after { background: rgba(255,255,255,.4); }
.quota--centro { margin-inline: auto; }

/* ---------- Cartiglio (firma): cornice da disegno tecnico ---------- */
.cartiglio { background: var(--bianco); border: 1.5px solid var(--blu); border-radius: 2px; box-shadow: 4px 4px 0 rgba(23,58,94,.12); position: relative; }
.cartiglio__testa { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; padding: .55rem .9rem; border-bottom: 1.5px solid var(--blu); font-family: var(--f-mono); font-size: .72rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--blu); }
.cartiglio__testa .rif { color: var(--inchiostro-3); font-weight: 500; }
.cartiglio__corpo { padding: 1rem .9rem; }
.cartiglio__righe { display: grid; gap: 0; margin: 0; }
.cartiglio__riga { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; padding: .5rem 0; border-bottom: 1px dashed var(--linea); }
.cartiglio__riga:last-child { border-bottom: 0; }
.cartiglio__riga dt { font-size: .9rem; color: var(--inchiostro-2); margin: 0; }
.cartiglio__riga dd { margin: 0; font-family: var(--f-mono); font-weight: 600; font-size: 1rem; color: var(--inchiostro); text-align: right; white-space: nowrap; }
.cartiglio__riga dd.spicca { color: var(--rame); font-size: 1.12rem; }
.cartiglio__piede { padding: .55rem .9rem; border-top: 1.5px solid var(--blu); font-size: .8rem; color: var(--inchiostro-3); }

/* ---------- Hero ---------- */
.eroe { padding-block: clamp(2.6rem, 7vw, 5rem); background:
  linear-gradient(180deg, rgba(23,58,94,.035), rgba(23,58,94,0) 45%), var(--carta); border-bottom: 1px solid var(--linea); }
.eroe__griglia { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(300px, .95fr); gap: clamp(2rem, 5vw, 4rem); align-items: center; }
.eroe h1 { color: var(--blu); margin-bottom: .5em; }
.eroe h1 em { font-style: normal; color: var(--rame); }
.eroe__sotto { font-size: 1.18rem; color: var(--inchiostro-2); max-width: 34em; }
.eroe__azioni { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 1.6rem; }
@media (max-width: 880px) { .eroe__griglia { grid-template-columns: 1fr; } }

/* Le due porte (casa / azienda) */
.porte { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; }
@media (max-width: 700px) { .porte { grid-template-columns: 1fr; } }
.porta { display: block; text-decoration: none; background: var(--bianco); border: 1px solid var(--linea); border-radius: var(--raggio); padding: 1.5rem; transition: border-color .15s, transform .15s, box-shadow .15s; color: var(--inchiostro); }
.porta:hover { border-color: var(--rame); transform: translateY(-2px); box-shadow: var(--ombra); color: var(--inchiostro); }
.porta h3 { margin-bottom: .3rem; }
.porta .freccia { color: var(--rame); font-weight: 700; }

/* ---------- Barra fiducia ---------- */
.fiducia { border-block: 1px solid var(--linea); background: var(--bianco); }
.fiducia ul { display: flex; flex-wrap: wrap; justify-content: center; gap: .4rem 2.4rem; list-style: none; margin: 0; padding: .85rem var(--gutter); }
.fiducia li { font-family: var(--f-mono); font-size: .8rem; font-weight: 500; letter-spacing: .04em; color: var(--inchiostro-2); display: flex; align-items: center; gap: .5rem; }
.fiducia li::before { content: ""; width: 7px; height: 7px; background: var(--rame); border-radius: 1px; flex: none; transform: rotate(45deg); }

/* ---------- Card e griglie ---------- */
.griglia { display: grid; gap: 1.3rem; }
.griglia--2 { grid-template-columns: repeat(2, 1fr); }
.griglia--3 { grid-template-columns: repeat(3, 1fr); }
.griglia--4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 950px) { .griglia--3, .griglia--4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .griglia--2, .griglia--3, .griglia--4 { grid-template-columns: 1fr; } }

.scheda { background: var(--bianco); border: 1px solid var(--linea); border-radius: var(--raggio); padding: 1.5rem; }
.scheda h3 { margin-top: .2rem; }
.scheda--tinta { background: var(--blu-chiaro); border-color: transparent; }
.scheda--rame { background: var(--rame-chiaro); border-color: transparent; }
.scheda .occhiello { margin-bottom: .4rem; }
.scheda__icona { width: 44px; height: 44px; color: var(--rame); margin-bottom: .8rem; }

/* Lista con segni di spunta quadrati */
.lista-spunte { list-style: none; margin: 0 0 1em; padding: 0; }
.lista-spunte li { position: relative; padding-left: 1.7rem; margin-bottom: .55rem; }
.lista-spunte li::before { content: ""; position: absolute; left: 0; top: .42em; width: 9px; height: 9px; border: 2px solid var(--rame); transform: rotate(45deg); }
.lista-spunte--no li::before { border-color: var(--inchiostro-3); background: var(--inchiostro-3); }

/* ---------- Tabelle tecniche ---------- */
.tabella-scorri { overflow-x: auto; }
table.tecnica { width: 100%; border-collapse: collapse; background: var(--bianco); border: 1.5px solid var(--blu); font-size: .95rem; }
table.tecnica caption { caption-side: top; text-align: left; font-family: var(--f-mono); font-size: .75rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--blu); padding: 0 0 .5rem; }
table.tecnica th { font-family: var(--f-mono); font-size: .74rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; text-align: left; color: var(--blu); background: var(--blu-chiaro); padding: .6rem .8rem; border-bottom: 1.5px solid var(--blu); }
table.tecnica td { padding: .65rem .8rem; border-bottom: 1px solid var(--linea); vertical-align: top; }
table.tecnica tr:last-child td { border-bottom: 0; }
table.tecnica td.num, table.tecnica th.num { font-family: var(--f-mono); text-align: right; white-space: nowrap; }
table.tecnica td .spicca { color: var(--rame); font-weight: 600; }

/* ---------- Avvisi ---------- */
.avviso { border-left: 3px solid var(--rame); background: var(--rame-chiaro); border-radius: 0 var(--raggio) var(--raggio) 0; padding: 1rem 1.2rem; margin: 1.4rem 0; }
.avviso--blu { border-left-color: var(--blu); background: var(--blu-chiaro); }
.avviso p:last-child { margin-bottom: 0; }
.nota-anteprima { font-family: var(--f-mono); font-size: .78rem; color: var(--inchiostro-3); border: 1px dashed var(--linea-forte); border-radius: var(--raggio); padding: .6rem .9rem; margin-top: 1rem; }

/* ---------- FAQ ---------- */
details.faq { background: var(--bianco); border: 1px solid var(--linea); border-radius: var(--raggio); margin-bottom: .7rem; }
details.faq summary { cursor: pointer; font-weight: 700; padding: 1rem 1.2rem; list-style: none; position: relative; padding-right: 2.6rem; color: var(--blu); }
details.faq summary::-webkit-details-marker { display: none; }
details.faq summary::after { content: "+"; position: absolute; right: 1.1rem; top: 50%; transform: translateY(-50%); font-family: var(--f-mono); font-size: 1.3rem; color: var(--rame); }
details.faq[open] summary::after { content: "\2212"; }
details.faq .faq__corpo { padding: 0 1.2rem 1.1rem; color: var(--inchiostro-2); }

/* ---------- Form ---------- */
.campo { margin-bottom: 1.1rem; }
.campo label { display: block; font-weight: 600; margin-bottom: .35rem; }
.campo .aiuto { display: block; font-size: .85rem; color: var(--inchiostro-3); margin-top: .3rem; }
.campo input[type="text"], .campo input[type="email"], .campo input[type="tel"], .campo input[type="number"], .campo select, .campo textarea {
  width: 100%; font: inherit; color: var(--inchiostro); background: var(--bianco);
  border: 1.5px solid var(--linea-forte); border-radius: var(--raggio); padding: .7rem .85rem;
}
.campo input:focus, .campo select:focus, .campo textarea:focus { border-color: var(--blu); outline: 2px solid rgba(23,58,94,.2); }
.campo--consenso { display: flex; gap: .6rem; align-items: flex-start; font-size: .9rem; color: var(--inchiostro-2); }
.campo--consenso input { margin-top: .3rem; width: 18px; height: 18px; accent-color: var(--rame); }

/* ---------- CTA finale ---------- */
.cta-finale { text-align: center; }
.cta-finale .bottone { margin-top: 1rem; }

/* ---------- Footer ---------- */
.piede { background: var(--blu-scuro); color: #B9C6D6; font-size: .95rem; margin-top: 0; }
.piede a { color: #DCE6F1; }
.piede a:hover { color: #fff; }
.piede__griglia { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 2rem; padding-block: 3rem 2rem; }
@media (max-width: 880px) { .piede__griglia { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .piede__griglia { grid-template-columns: 1fr; } }
.piede h4 { color: #fff; font-size: .95rem; margin-bottom: .8rem; }
.piede ul { list-style: none; margin: 0; padding: 0; }
.piede li { margin-bottom: .45rem; }
.piede .marchio { color: #fff; margin-bottom: .8rem; }
.piede .marchio__sotto { color: #8FA2B8; }
.piede__legale { border-top: 1px solid rgba(255,255,255,.15); padding-block: 1.2rem; font-size: .82rem; color: #8FA2B8; display: flex; flex-wrap: wrap; gap: .5rem 2rem; justify-content: space-between; }
.piede__legale p { margin: 0; }

/* ============================================================
   CALCOLATORE
   ============================================================ */
.calc { max-width: 720px; margin-inline: auto; }
.calc:focus, .calc:focus-visible { outline: none; }
.calc__progresso { display: flex; align-items: center; gap: .7rem; margin-bottom: 1.6rem; font-family: var(--f-mono); font-size: .78rem; color: var(--inchiostro-3); }
.calc__barra { flex: 1; height: 4px; background: var(--linea); border-radius: 2px; overflow: hidden; }
.calc__barra i { display: block; height: 100%; background: var(--rame); width: 0; transition: width .3s ease; }

.calc__schermata h2 { margin-bottom: .3rem; }
.calc__perche { font-size: .92rem; color: var(--inchiostro-3); margin-bottom: 1.4rem; }

/* Card opzione: una domanda per schermata, card grandi */
.opzioni { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: .8rem; margin-bottom: 1.4rem; }
.opzione { display: flex; flex-direction: column; align-items: flex-start; gap: .4rem; background: var(--bianco); border: 2px solid var(--linea); border-radius: var(--raggio); padding: 1rem 1.1rem; font: inherit; font-weight: 600; color: var(--inchiostro); cursor: pointer; text-align: left; transition: border-color .12s, background .12s; }
.opzione:hover { border-color: var(--rame-vivo); }
.opzione[aria-pressed="true"], .opzione.scelta { border-color: var(--rame); background: var(--rame-chiaro); }
.opzione svg { width: 34px; height: 34px; color: var(--rame); }
.opzione .opzione__nota { font-size: .82rem; font-weight: 400; color: var(--inchiostro-3); }
.opzione--nonso { border-style: dashed; font-weight: 500; color: var(--inchiostro-2); }

.calc__nav { display: flex; justify-content: space-between; align-items: center; gap: 1rem; margin-top: .6rem; }
.calc__indietro { background: none; border: 0; font: inherit; font-weight: 600; color: var(--inchiostro-3); cursor: pointer; padding: .5rem .2rem; }
.calc__indietro:hover { color: var(--blu); }
.calc__scappatoia { font-size: .88rem; color: var(--inchiostro-3); margin-top: 2.2rem; text-align: center; }

/* Caricamento con storytelling */
.calc__caricamento { text-align: center; padding: 3rem 0; }
.calc__caricamento .anello { width: 46px; height: 46px; margin: 0 auto 1.4rem; border: 3px solid var(--linea); border-top-color: var(--rame); border-radius: 50%; animation: gira 1s linear infinite; }
@keyframes gira { to { transform: rotate(360deg); } }
.calc__caricamento p { font-family: var(--f-mono); font-size: .9rem; color: var(--inchiostro-2); min-height: 1.5em; }

/* Risultato */
.risultato { max-width: 860px; margin-inline: auto; }
.risultato__intro { margin-bottom: 1.6rem; }
.risultato__griglia { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-bottom: 1.4rem; }
@media (max-width: 760px) { .risultato__griglia { grid-template-columns: 1fr; } }
.riquadro-dato { background: var(--bianco); border: 1px solid var(--linea); border-radius: var(--raggio); padding: 1rem 1.2rem; }
.riquadro-dato .etichetta { font-size: .82rem; font-weight: 600; color: var(--inchiostro-2); display: block; margin-bottom: .2rem; }
.riquadro-dato .valore { font-family: var(--f-mono); font-weight: 600; font-size: 1.45rem; color: var(--blu); display: block; line-height: 1.2; }
.riquadro-dato .valore small { font-size: .85rem; font-weight: 500; color: var(--inchiostro-3); }
.riquadro-dato--spicco .valore { color: var(--rame); }
.risultato .ipotesi { font-size: .88rem; color: var(--inchiostro-2); background: var(--blu-chiaro); border-radius: var(--raggio); padding: .8rem 1rem; }
.risultato .ipotesi ul { margin: .4rem 0 0; padding-left: 1.2rem; }

/* Grafici in CSS/SVG */
.grafico { background: var(--bianco); border: 1px solid var(--linea); border-radius: var(--raggio); padding: 1.2rem 1.3rem 1rem; margin-bottom: 1.4rem; }
.grafico h3 { font-size: 1.02rem; margin-bottom: 1rem; }
.grafico .legenda { display: flex; gap: 1.4rem; flex-wrap: wrap; font-size: .82rem; color: var(--inchiostro-2); margin-top: .8rem; }
.grafico .legenda i { display: inline-block; width: 11px; height: 11px; border-radius: 2px; margin-right: .4rem; vertical-align: -1px; }
.barre-duo { display: grid; gap: .9rem; }
.barra-riga { display: grid; grid-template-columns: 130px 1fr 90px; align-items: center; gap: .8rem; font-size: .9rem; }
@media (max-width: 560px) { .barra-riga { grid-template-columns: 96px 1fr 80px; font-size: .82rem; } }
.barra-riga .pista { height: 22px; background: var(--carta-scura); border-radius: 3px; position: relative; overflow: hidden; }
.barra-riga .pieno { position: absolute; inset: 0 auto 0 0; border-radius: 3px 4px 4px 3px; }
.barra-riga .val { font-family: var(--f-mono); font-weight: 600; text-align: right; white-space: nowrap; }
.mensile { display: grid; grid-template-columns: repeat(12, 1fr); gap: 4px; align-items: end; height: 150px; }
.mensile .colonna { background: var(--graf-blu); border-radius: 3px 3px 0 0; min-height: 4px; position: relative; }
.mensile-mesi { display: grid; grid-template-columns: repeat(12, 1fr); gap: 4px; font-family: var(--f-mono); font-size: .62rem; color: var(--inchiostro-3); text-align: center; margin-top: .4rem; }

/* Pannello "come abbiamo calcolato" */
details.metodo { border: 1.5px solid var(--blu); border-radius: 2px; background: var(--bianco); margin: 1.6rem 0; }
details.metodo summary { cursor: pointer; font-family: var(--f-mono); font-size: .82rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--blu); padding: .8rem 1.1rem; list-style: none; }
details.metodo summary::-webkit-details-marker { display: none; }
details.metodo summary::before { content: "+ "; color: var(--rame); }
details.metodo[open] summary::before { content: "\2212 "; }
details.metodo .metodo__corpo { padding: 0 1.1rem 1.1rem; font-size: .92rem; }

/* Gate */
.varco { background: var(--blu); color: #E8EDF4; border-radius: var(--raggio); padding: 1.8rem; margin-top: 2rem; }
.varco h3 { color: #fff; }
.varco .micro-fiducia { font-size: .88rem; color: #B9C6D6; }
.varco .campo label { color: #E8EDF4; }
.varco .campo input { border-color: transparent; }

/* Toggle switch semplici (batteria, prima casa) */
.interruttori { display: flex; flex-wrap: wrap; gap: .8rem 1.6rem; margin: 0 0 1.2rem; }
.interruttore { display: inline-flex; align-items: center; gap: .55rem; font-weight: 600; font-size: .95rem; cursor: pointer; }
.interruttore input { width: 20px; height: 20px; accent-color: var(--rame); }

/* ---------- Utilità ---------- */
.testo-centro { text-align: center; }
.max-prosa { max-width: 62ch; }
.max-prosa--centro { max-width: 62ch; margin-inline: auto; }
.mt-0 { margin-top: 0; } .mb-0 { margin-bottom: 0; }
.spazio-su { margin-top: 2rem; }
.spazio-su-piccolo { margin-top: 1rem; }

/* ============================================================
   LIVELLO 2 · IMPATTO
   Scena hero animata, reveal allo scroll, contatori, marquee,
   micro-interazioni. Tutto degrada con grazia: senza JS il sito
   resta perfettamente leggibile, con reduced-motion tutto fermo.
   ============================================================ */

/* ---------- Transizioni tra pagine (View Transitions API) ---------- */
@view-transition { navigation: auto; }
::view-transition-old(root) { animation-duration: .22s; }
::view-transition-new(root) { animation-duration: .22s; }

/* ---------- HERO SCENA (solo home) ---------- */
.eroe--scena {
  position: relative; overflow: hidden;
  background: linear-gradient(180deg, #081527 0%, #0E2540 46%, #1B3E63 74%, #35577E 100%);
  color: #E9EFF6; border-bottom: 0;
  padding-block: clamp(4rem, 9vh, 6.5rem) 0;
}
.eroe--scena .occhiello { color: #F0A85C; }
.eroe--scena h1 { color: #FFFFFF; font-size: clamp(2.3rem, 5.8vw, 3.7rem); }
.eroe--scena h1 em { color: #F0A85C; }
.eroe--scena .eroe__sotto { color: #C3D2E2; }
.eroe--scena .eroe__griglia { position: relative; z-index: 3; align-items: start; }
.eroe--scena .bottone--contorno { color: #fff; border-color: rgba(255,255,255,.55); }
.eroe--scena .bottone--contorno:hover { background: #fff; color: var(--blu); border-color: #fff; }
.eroe--scena .cartiglio { border-color: rgba(255,255,255,.85); box-shadow: 6px 6px 0 rgba(0,0,0,.25); }

/* bagliore dell'alba dietro i tetti */
.eroe--scena::before {
  content: ""; position: absolute; z-index: 1; left: 68%; bottom: -12%;
  width: 130vw; height: 78%; transform: translateX(-50%);
  background: radial-gradient(ellipse 52% 46% at 50% 100%,
    rgba(240,150,60,.55) 0%, rgba(216,116,46,.28) 34%, rgba(194,106,46,.10) 58%, transparent 75%);
  animation: alba 2.4s cubic-bezier(.22,.7,.3,1) both;
  pointer-events: none;
}
@keyframes alba { from { opacity: 0; transform: translateX(-50%) translateY(9%); } to { opacity: 1; transform: translateX(-50%) translateY(0); } }

/* la scena SVG (skyline tetti + pannelli) sta in fondo alla sezione */
.scena { position: relative; z-index: 2; display: block; width: 100%; margin-top: clamp(1.6rem, 4vh, 3rem); }
.scena svg { display: block; width: 100%; height: auto; }
.scena .sole { animation: sole-sorge 2.4s cubic-bezier(.22,.7,.3,1) both; }
@keyframes sole-sorge { from { transform: translateY(70px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
.scena .cella { opacity: 0; animation: cella-accende .7s ease-out forwards; }
@keyframes cella-accende { from { opacity: 0; } to { opacity: 1; } }
.scena .glint {
  animation: glint-scorre 5.5s ease-in-out 2.8s infinite;
}
@keyframes glint-scorre {
  0%, 55%, 100% { transform: translateX(-130px); opacity: 0; }
  62% { opacity: .8; }
  78% { transform: translateX(560px); opacity: 0; }
}

/* titolo a righe che salgono */
.riga-anim { display: block; overflow: hidden; }
.riga-anim > span { display: inline-block; transform: translateY(112%); animation: riga-sale .8s cubic-bezier(.2,.75,.25,1) forwards; }
.riga-anim:nth-child(2) > span { animation-delay: .12s; }
.riga-anim:nth-child(3) > span { animation-delay: .24s; }
@keyframes riga-sale { to { transform: translateY(0); } }
.entra-dopo { opacity: 0; animation: entra-su .8s ease-out .55s forwards; }
.entra-dopo--2 { animation-delay: .75s; }
@keyframes entra-su { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: translateY(0); } }
.eroe--scena .cartiglio { opacity: 0; animation: cartiglio-entra .9s cubic-bezier(.2,.75,.25,1) .5s forwards; }
@keyframes cartiglio-entra { from { opacity: 0; transform: translateX(36px); } to { opacity: 1; transform: translateX(0); } }

/* striscia numeri sotto la hero */
.numeri-striscia { background: var(--blu-scuro); color: #DCE6F1; position: relative; z-index: 3; }
.numeri-striscia .contenitore { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; padding-block: 1.4rem; }
@media (max-width: 700px) { .numeri-striscia .contenitore { grid-template-columns: 1fr; text-align: center; } }
.numero-vivo .cifra { font-family: var(--f-mono); font-weight: 600; font-size: clamp(1.5rem, 3vw, 2.1rem); color: #F0A85C; display: block; line-height: 1.15; }
.numero-vivo .desc { font-size: .85rem; color: #9FB2C6; }

/* ---------- Reveal allo scroll ---------- */
html.js-anim .rivela { opacity: 0; transform: translateY(26px); }
html.js-anim .rivela.visibile {
  opacity: 1; transform: none;
  transition: opacity .7s ease-out, transform .7s cubic-bezier(.2,.75,.25,1);
  transition-delay: calc(var(--ritardo, 0) * 90ms);
}
html.js-anim .rivela--sx { transform: translateX(-30px) translateY(0); }
html.js-anim .rivela--dx { transform: translateX(30px) translateY(0); }

/* linea di quota che si disegna */
html.js-anim .quota { max-width: 0; transition: max-width .9s cubic-bezier(.2,.75,.25,1) .15s; }
html.js-anim .quota.visibile { max-width: 190px; }
html.js-anim .quota::before, html.js-anim .quota::after { opacity: 0; transition: opacity .3s ease .9s; }
html.js-anim .quota.visibile::before, html.js-anim .quota.visibile::after { opacity: 1; }

/* ---------- Header dinamico ---------- */
.testata { transition: box-shadow .25s ease, background .25s ease; }
.testata.compatta { box-shadow: 0 6px 24px rgba(16,41,63,.10); background: rgba(250,250,247,.97); }
.testata__riga { transition: min-height .25s ease; }
.testata.compatta .testata__riga { min-height: 56px; }
.nav-principale a:not(.bottone) { position: relative; }
.nav-principale a:not(.bottone)::after {
  content: ""; position: absolute; left: 0; bottom: -6px; height: 2px; width: 100%;
  background: var(--rame); transform: scaleX(0); transform-origin: left;
  transition: transform .25s cubic-bezier(.2,.75,.25,1);
}
.nav-principale a:not(.bottone):hover::after,
.nav-principale a[aria-current="page"]:not(.bottone)::after { transform: scaleX(1); }

/* ---------- Micro-interazioni ---------- */
.bottone { transition: background .18s, color .18s, border-color .18s, transform .18s, box-shadow .18s; }
.bottone--pieno:hover, .bottone--blu:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(166,85,31,.35); }
.bottone--blu:hover { box-shadow: 0 10px 24px rgba(23,58,94,.35); }
.bottone:active { transform: translateY(0); }
.scheda { transition: transform .22s cubic-bezier(.2,.75,.25,1), box-shadow .22s ease, border-color .22s ease; }
.scheda:hover { transform: translateY(-5px); box-shadow: 0 14px 34px rgba(28,36,48,.12); border-color: var(--linea-forte); }
.scheda__icona { transition: transform .3s cubic-bezier(.2,.75,.25,1); }
.scheda:hover .scheda__icona { transform: translateY(-3px) scale(1.06); }
.porta { position: relative; overflow: hidden; }
.porta::after {
  content: ""; position: absolute; inset: 0 auto 0 -70%; width: 55%;
  background: linear-gradient(105deg, transparent, rgba(194,106,46,.08), transparent);
  transform: skewX(-18deg); transition: left .55s ease; pointer-events: none;
}
.porta:hover::after { left: 125%; }
.porta .freccia { display: inline-block; transition: transform .25s ease; }
.porta:hover .freccia { transform: translateX(6px); }

/* trama tecnica sulle sezioni in tinta */
.sezione--tinta {
  background-image:
    linear-gradient(rgba(23,58,94,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23,58,94,.035) 1px, transparent 1px);
  background-size: 34px 34px;
}

/* ---------- Marquee barra fiducia ---------- */
.fiducia { overflow: hidden; }
html.js-anim .fiducia ul.scorre {
  flex-wrap: nowrap; justify-content: flex-start; width: max-content;
  animation: marquee 32s linear infinite;
}
html.js-anim .fiducia ul.scorre li { white-space: nowrap; }
html.js-anim .fiducia:hover ul.scorre { animation-play-state: paused; }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ---------- Grafici animati (calcolatore) ---------- */
html.js-anim .barra-riga .pieno { transform-origin: left; animation: cresci-x .95s cubic-bezier(.2,.75,.25,1) .15s both; }
@keyframes cresci-x { from { transform: scaleX(0); } to { transform: scaleX(1); } }
html.js-anim .mensile .colonna { transform-origin: bottom; animation: cresci-y .7s cubic-bezier(.2,.75,.25,1) both; animation-delay: var(--d, 0s); }
@keyframes cresci-y { from { transform: scaleY(0); } to { transform: scaleY(1); } }
html.js-anim .riquadro-dato { animation: entra-su .55s ease-out both; animation-delay: var(--d, 0s); }
html.js-anim .calc__schermata { animation: schermata-entra .4s cubic-bezier(.2,.75,.25,1) both; }
@keyframes schermata-entra { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }

/* ---------- Indicatore scroll hero ---------- */
.scorri-giu {
  position: absolute; z-index: 4; left: 50%; bottom: 14px; transform: translateX(-50%);
  width: 22px; height: 34px; border: 2px solid rgba(255,255,255,.5); border-radius: 12px;
  pointer-events: none;
}
.scorri-giu::after {
  content: ""; position: absolute; left: 50%; top: 6px; width: 4px; height: 8px;
  border-radius: 2px; background: #F0A85C; transform: translateX(-50%);
  animation: scorri 1.8s ease-in-out infinite;
}
@keyframes scorri { 0%, 100% { transform: translateX(-50%) translateY(0); opacity: 1; } 60% { transform: translateX(-50%) translateY(10px); opacity: .2; } }
@media (max-width: 700px) { .scorri-giu { display: none; } }

/* ---------- Motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; animation-delay: 0s !important; transition-delay: 0s !important; }
  html.js-anim .rivela, html.js-anim .quota { opacity: 1; transform: none; max-width: 190px; }
  .riga-anim > span { transform: none; }
  .entra-dopo, .eroe--scena .cartiglio, .scena .cella { opacity: 1; }
  html.js-anim .fiducia ul.scorre { animation: none; }
}

/* ---------- Stampa ---------- */
@media print {
  .testata, .piede, .fiducia, .eroe__azioni, .nav-cta { display: none !important; }
  body { background: #fff; }
}