/* Progetto MAB – foglio di stile condiviso. Nessun font o risorsa esterna. */
:root {
  --paper: #edf0ee;
  --paper-2: #e2e8e6;
  --ink: #14202b;
  --ink-soft: #3b4a57;
  --sea: #0f4c75;
  --mark: #c23a28;
  --line: rgba(20, 32, 43, 0.22);
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.6;
}
img, svg { max-width: 100%; display: block; }
a { color: var(--sea); text-underline-offset: 0.18em; }
a:hover { color: var(--ink); }
:focus-visible { outline: 3px solid var(--sea); outline-offset: 3px; border-radius: 2px; }

.skip {
  position: absolute; left: 1rem; top: -4rem;
  background: var(--ink); color: var(--paper);
  padding: 0.6rem 1rem; z-index: 10; text-decoration: none;
}
.skip:focus { top: 1rem; }

.wrap { width: min(1120px, 100% - 3rem); margin-inline: auto; }

/* ---------- Header ---------- */
.site-header { padding-block: 1.25rem; }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; flex-wrap: wrap; }
.brand { display: inline-flex; align-items: center; color: var(--ink); text-decoration: none; }
.brand .logo { height: 44px; width: auto; }
.nav { display: flex; align-items: center; gap: 1.75rem; flex-wrap: wrap; }
.nav a:not(.btn) { color: var(--ink); text-decoration: none; font-weight: 500; }
.nav a:not(.btn):hover { text-decoration: underline; text-underline-offset: 0.3em; }

.btn {
  display: inline-block; padding: 0.8rem 1.4rem;
  border: 2px solid var(--ink); border-radius: 2px;
  font-weight: 600; text-decoration: none; line-height: 1.2;
  transition: background-color 0.15s, color 0.15s;
}
.btn-primary { background: var(--ink); color: var(--paper); }
.btn-primary:hover { background: var(--sea); border-color: var(--sea); color: #fff; }
.btn-ghost { background: transparent; color: var(--ink); }
.btn-ghost:hover { background: var(--ink); color: var(--paper); }

/* ---------- Hero ---------- */
.hero { padding-block: 2.5rem 4.5rem; }
.hero .wrap { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); gap: 3.5rem; align-items: center; }
.hero h1 {
  font-family: var(--serif); font-weight: 700;
  font-size: clamp(2.2rem, 4.6vw, 3.7rem); line-height: 1.06;
  letter-spacing: -0.012em; margin: 0 0 1.4rem; text-wrap: balance;
}
.hero p { max-width: 52ch; color: var(--ink-soft); margin: 0 0 2rem; }
.hero .actions { display: flex; gap: 0.9rem; flex-wrap: wrap; }

.sheet {
  background-color: #f6f8f7;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 28px 28px;
  background-position: -1px -1px;
  border: 1.5px solid var(--ink);
  box-shadow: 6px 6px 0 var(--paper-2);
}
.sheet svg { width: 100%; height: auto; }
.sheet .stroke { fill: none; stroke: var(--ink); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.sheet .thin { fill: none; stroke: var(--ink); stroke-width: 1; stroke-linecap: round; }
.sheet .solid { fill: #f6f8f7; stroke: var(--ink); stroke-width: 1.6; }
.sheet .axis { fill: none; stroke: var(--mark); stroke-width: 1.4; stroke-dasharray: 14 4 2 4; }
.sheet .dash { fill: none; stroke: var(--ink); stroke-width: 1; stroke-dasharray: 4 3; }
.sheet .label { font-family: var(--sans); font-size: 13px; fill: var(--ink); }
.sheet .label-mark { font-family: var(--sans); font-size: 13px; font-weight: 600; fill: var(--mark); }
.sheet .label-bold { font-family: var(--serif); font-size: 13px; font-weight: 700; fill: var(--ink); }

/* Un solo momento animato: il disegno si traccia al caricamento */
@media (prefers-reduced-motion: no-preference) {
  .sheet .d { stroke-dasharray: 1; stroke-dashoffset: 1; animation: trace 1.4s ease-out forwards; animation-delay: var(--t, 0s); }
  .sheet .fade { opacity: 0; animation: fade 0.6s ease-out forwards; animation-delay: var(--t, 0s); }
}
@keyframes trace { to { stroke-dashoffset: 0; } }
@keyframes fade { to { opacity: 1; } }

/* ---------- Sezioni ---------- */
section { padding-block: 4.5rem; }
.rule { border-top: 1.5px solid var(--ink); }
h2 {
  font-family: var(--serif); font-weight: 700;
  font-size: clamp(1.7rem, 3vw, 2.4rem); line-height: 1.12;
  letter-spacing: -0.008em; margin: 0; text-wrap: balance;
}
h3 { font-family: var(--serif); font-size: 1.45rem; line-height: 1.2; margin: 0; }

.studio .wrap { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.6fr); gap: 3.5rem; }
.studio .text p { margin: 0 0 1.2rem; max-width: 62ch; }
.studio .text p:last-child { margin-bottom: 0; }

.servizi { background: var(--ink); color: var(--paper); }
.servizi h2 { margin-bottom: 2.5rem; }
.servizio { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.6fr); gap: 3.5rem; padding-block: 2rem; border-top: 1px solid rgba(237, 240, 238, 0.35); }
.servizio p { margin: 0; max-width: 62ch; color: #d6dedb; }

.contatti .wrap { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.6fr); gap: 3.5rem; }
.contatti .intro p { margin: 1rem 0 0; max-width: 40ch; color: var(--ink-soft); }
.contact-list { display: grid; gap: 1.75rem; margin: 0; }
.contact-list div { padding-top: 1.1rem; border-top: 1px solid var(--line); }
.contact-list dt { font-size: 0.95rem; color: var(--ink-soft); margin-bottom: 0.25rem; }
.contact-list dd { margin: 0; font-family: var(--serif); font-size: 1.5rem; line-height: 1.3; }
.contact-list a { color: var(--ink); text-decoration-thickness: 1.5px; }
.contact-list a:hover { color: var(--sea); }
.contact-list .small { display: block; font-family: var(--sans); font-size: 1rem; margin-top: 0.35rem; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1.5px solid var(--ink); padding-block: 1.75rem 2.5rem; font-size: 0.95rem; color: var(--ink-soft); }
.site-footer .wrap { display: flex; justify-content: space-between; gap: 0.75rem 2rem; flex-wrap: wrap; }
.site-footer ul { display: flex; gap: 1.5rem; list-style: none; margin: 0; padding: 0; flex-wrap: wrap; }
.site-footer a { color: var(--ink); }

/* ---------- Pagine legali ---------- */
.legal { padding-block: 2rem 5rem; }
.legal .wrap { max-width: 760px; }
.legal h1 { font-family: var(--serif); font-size: clamp(2rem, 4vw, 2.8rem); line-height: 1.1; margin: 0 0 0.5rem; }
.legal .updated { color: var(--ink-soft); margin: 0 0 2.5rem; }
.legal h2 { font-size: 1.4rem; margin: 2.2rem 0 0.6rem; }
.legal p, .legal li { max-width: 68ch; }
.legal ul { padding-left: 1.2rem; }
.legal .note { border-left: 4px solid var(--sea); background: #f6f8f7; padding: 0.9rem 1.1rem; margin: 1.5rem 0; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero .wrap, .studio .wrap, .servizio, .contatti .wrap { grid-template-columns: 1fr; gap: 1.5rem; }
  .hero { padding-block: 1.5rem 3rem; }
  section { padding-block: 3.25rem; }
  .nav { gap: 1.1rem; }
}
@media (max-width: 520px) {
  .wrap { width: min(1120px, 100% - 2rem); }
  .nav a:not(.btn) { display: none; }
  .btn { padding: 0.75rem 1.1rem; }
}

/* ---------- Progetti ---------- */
.progetti { border-top: 1.5px solid var(--ink); }
.progetti .lead { max-width: 60ch; color: var(--ink-soft); margin: 0.9rem 0 2.5rem; }
.gruppo { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2.2fr); gap: 2.5rem; padding-block: 2.25rem; border-top: 1px solid var(--line); }
.gruppo-testo p { margin: 0.5rem 0 0; color: var(--ink-soft); max-width: 36ch; font-size: 0.98rem; }
.galleria { columns: 2 230px; column-gap: 0.75rem; }
.gal-item { display: block; margin: 0 0 0.75rem; break-inside: avoid; background: var(--paper-2); line-height: 0; }
.gal-item img { width: 100%; height: auto; transition: opacity 0.15s; }
.gal-item:hover img { opacity: 0.88; }
.gal-item:focus-visible { outline-offset: 2px; }

dialog { border: 0; padding: 0; background: transparent; max-width: 96vw; max-height: 96vh; overflow: visible; }
dialog::backdrop { background: rgba(20, 32, 43, 0.9); }
dialog img { display: block; max-width: 94vw; max-height: 86vh; width: auto; height: auto; margin-inline: auto; }
.lb-close { display: block; margin: 0 0 0.6rem auto; background: var(--paper); color: var(--ink); border: 2px solid var(--paper); padding: 0.45rem 0.9rem; font: inherit; font-weight: 600; cursor: pointer; }
.lb-close:hover { background: var(--ink); color: var(--paper); }

@media (max-width: 900px) {
  .gruppo { grid-template-columns: 1fr; gap: 1.25rem; }
  .gruppo-testo p { max-width: 60ch; }
  .brand .logo { height: 38px; }
}
@media (max-width: 520px) {
  .galleria { columns: 1; }
}

.site-footer .social { flex-basis: 100%; order: 3; padding-top: 0.25rem; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }

/* ---------- Lingue e WhatsApp ---------- */
.site-header .wrap { gap: 0.75rem 1.5rem; }
.lang { display: flex; gap: 0.15rem; list-style: none; margin: 0 auto 0 0; padding: 0; font-size: 0.9rem; }
.lang a, .lang span { display: inline-block; padding: 0.3rem 0.5rem; text-decoration: none; color: var(--ink); border-bottom: 2px solid transparent; }
.lang a:hover { border-color: var(--ink-soft); }
.lang [aria-current] { font-weight: 700; border-color: var(--ink); }
.wa { position: fixed; right: 1rem; bottom: 1rem; z-index: 5; background: var(--ink); color: var(--paper); padding: 0.7rem 1.1rem; font-weight: 600; text-decoration: none; border: 2px solid var(--paper); box-shadow: 3px 3px 0 rgba(20, 32, 43, 0.25); }
.wa:hover { background: var(--sea); color: #fff; }
@media (max-width: 520px) { .lang { margin: 0; order: 3; flex-basis: 100%; } }

/* ---------- Hero con foto ---------- */
body.photo .site-header { position: absolute; top: 0; left: 0; right: 0; z-index: 3; padding-block: 1.25rem; }
body.photo .site-header .brand { display: none; }
body.photo .nav a:not(.btn), body.photo .lang a, body.photo .lang span { color: #fff; }
body.photo .lang a:hover { border-color: rgba(255, 255, 255, 0.7); }
body.photo .lang [aria-current] { border-color: #fff; }
body.photo .nav .btn-primary { background: #fff; border-color: #fff; color: var(--ink); }
body.photo .nav .btn-primary:hover { background: var(--paper-2); border-color: var(--paper-2); color: var(--ink); }
body.photo .skip:focus { color: #fff; }
.hero-photo { position: relative; min-height: 100vh; min-height: 100svh; display: grid; place-items: center; text-align: center; color: #fff; isolation: isolate; overflow: hidden; }
.hero-photo picture, .hero-photo .bg { position: absolute; inset: 0; width: 100%; height: 100%; z-index: -2; }
.hero-photo .bg { object-fit: cover; object-position: center; }
.hero-photo::after { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(rgba(8, 12, 16, 0.64), rgba(8, 12, 16, 0.52)); }
.hero-photo .inner { display: grid; gap: 2.25rem; justify-items: center; padding: 7rem 1.5rem 5rem; }
.hero-logo { width: clamp(220px, 24vw, 380px); height: auto; color: #fff; }
.hero-photo h1 { font-family: var(--sans); font-size: clamp(0.95rem, 1.4vw, 1.2rem); font-weight: 500; letter-spacing: 0.01em; line-height: 1.4; margin: 0; max-width: 36ch; text-wrap: balance; }
.hero.intro { padding-block: 4.5rem; }
.hero .intro-p { font-family: var(--serif); font-size: clamp(1.3rem, 2.2vw, 1.75rem); line-height: 1.4; color: var(--ink); max-width: 30ch; margin: 0 0 2rem; }
@media (max-width: 900px) { .hero.intro { padding-block: 3rem; } }

/* ---------- Bandierine ---------- */
.lang { gap: 0.35rem; align-items: center; }
.lang a, .lang span[aria-current] { display: inline-flex; align-items: center; padding: 0.35rem 0.3rem; }
.lang .flag { width: 26px; height: 17px; display: block; border-radius: 2px; box-shadow: 0 0 0 1px rgba(20, 32, 43, 0.35); }
body.photo .lang .flag { box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.55); }
.lang a .flag { opacity: 0.78; transition: opacity 0.15s; }
.lang a:hover .flag, .lang a:focus-visible .flag { opacity: 1; }
.lang .sr { padding: 0; border: 0; }

/* ---------- Icone social ---------- */
.site-footer .social { align-items: center; gap: 1.1rem; }
.site-footer .social a { display: inline-flex; align-items: center; justify-content: center; min-width: 28px; min-height: 28px; color: var(--ink); text-decoration: none; }
.site-footer .social a:hover { color: var(--sea); }
.site-footer .social svg.soc { width: 22px; height: 22px; display: block; }
.site-footer .social a.soc-text { text-decoration: underline; text-underline-offset: 0.2em; }
@media (max-width: 700px) { .site-footer { padding-bottom: 5.5rem; } }