/* ─────────────────────────────────────
   Catalogo — Scheda Articolo
   ───────────────────────────────────── */

/* HTML hidden attribute deve sempre vincere sulle regole display: */
.art-page [hidden],
.art-sticky-mobile[hidden],
.lb-overlay[hidden] { display: none !important; }

.art-page { background: var(--paper); position: relative; }

/* HERO SPLIT */
.art-hero {
  padding-top: calc(var(--header-h) + 56px);
  padding-bottom: 72px;
  background: var(--paper);
}
.art-hero-inner {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: clamp(32px, 5vw, 72px);
  align-items: flex-start;
}
.art-hero-left {
  display: flex; flex-direction: column;
  gap: 18px;
  position: sticky;
  top: calc(var(--header-h) + 32px);
}
.art-hero-left .bcrumb { margin-bottom: 6px; }

.art-code {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--primary);
  font-weight: 500;
  margin-top: 4px;
}
.art-title {
  font-family: var(--font-display);
  font-size: clamp(40px, 5.4vw, 72px);
  font-weight: 400;
  letter-spacing: -.035em;
  line-height: .98;
  margin: 0;
  color: var(--ink-1000);
}
.art-title .em {
  font-style: italic;
  color: var(--primary);
  font-weight: 400;
}
.art-lede {
  font-size: clamp(16px, 1.2vw, 18.5px);
  line-height: 1.55;
  color: var(--ink-700);
  max-width: 56ch;
  margin: 4px 0 8px;
}

.art-avail {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--font-mono);
  font-size: 12px; letter-spacing: .08em;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--paper-2);
  color: var(--ink-700);
  width: fit-content;
}
.art-avail .dot { width: 8px; height: 8px; border-radius: 50%; }
.art-avail.ok .dot { background: var(--success); box-shadow: 0 0 0 4px rgba(47,125,91,.18); }
.art-avail.out { color: #b04231; background: rgba(204,63,44,.08); }
.art-avail.out .dot { background: #cc3f2c; box-shadow: 0 0 0 4px rgba(204,63,44,.2); }

.art-cat-chips {
  display: flex; gap: 8px;
  margin-top: 4px;
}
.art-cat-chip {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 14px;
  border: 1px solid var(--ink-200);
  border-radius: 999px;
  font-size: 12.5px; font-weight: 500;
  color: var(--ink-700);
  background: #fff;
  transition: all .15s;
}
.art-cat-chip:hover { border-color: var(--ink-900); color: var(--ink-900); }
.art-cat-chip .num {
  font-family: var(--font-mono);
  font-size: 10px; letter-spacing: .12em;
  color: var(--primary); font-weight: 500;
}
.art-cat-chip .line {
  width: 14px; height: 1px;
  background: var(--ink-300);
}

.art-cta {
  display: flex; flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
  padding-top: 18px;
  border-top: 1px solid var(--ink-100);
}

/* HERO RIGHT — gallery */
.art-gallery {
  display: flex; flex-direction: column;
  gap: 12px;
}
.art-gallery-main {
  position: relative;
  aspect-ratio: 4 / 3;
  border-radius: var(--r-md);
  overflow: hidden;
  cursor: zoom-in;
  display: block;
  background: var(--ink-200);
}
.art-gallery-tag {
  position: absolute; top: 14px; left: 14px;
  z-index: 2;
  font-family: var(--font-mono);
  font-size: 10.5px; letter-spacing: .14em;
  text-transform: uppercase;
  color: #fff;
  background: rgba(10,10,12,.7);
  padding: 6px 10px;
  border-radius: 3px;
  -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px);
}
.art-gallery-zoom {
  position: absolute; bottom: 14px; right: 14px;
  z-index: 2;
  width: 38px; height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,.95);
  color: var(--ink-900);
  display: grid; place-items: center;
  font-size: 16px;
  opacity: 0;
  transform: translateY(8px);
  transition: all .2s ease;
}
.art-gallery-main:hover .art-gallery-zoom { opacity: 1; transform: translateY(0); }
.art-gallery-label {
  position: absolute; bottom: 14px; left: 14px;
  z-index: 2;
  font-family: var(--font-mono);
  font-size: 10px; letter-spacing: .08em;
  color: rgba(0,0,0,.55);
  background: rgba(255,255,255,.85);
  padding: 4px 8px; border-radius: 3px;
}
.art-gallery-strip {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  height: 88px;
}
.art-thumb {
  position: relative;
  border-radius: 6px;
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  transition: border-color .15s, transform .2s;
}
.art-thumb:hover { transform: translateY(-2px); }
.art-thumb.on { border-color: var(--primary); }
.art-thumb-more {
  background: var(--ink-1000);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 18px; font-weight: 500;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  letter-spacing: -.01em;
}
.art-thumb-more span {
  font-size: 9.5px;
  letter-spacing: .14em;
  opacity: .65;
  text-transform: uppercase;
}
.art-thumb-more:hover { background: var(--primary); transform: translateY(-2px); }

/* No-images state */
.art-gallery-empty {
  aspect-ratio: 4 / 3;
  border-radius: var(--r-md);
  background: var(--paper-2);
  border: 1px dashed var(--ink-200);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 10px;
  color: var(--ink-500);
}
.art-gallery-empty-ico {
  width: 72px; height: 72px;
  border-radius: 50%;
  background: #fff;
  border: 1px solid var(--ink-200);
  display: grid; place-items: center;
  color: var(--ink-300);
  margin-bottom: 6px;
}
.art-gallery-empty-label {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink-700);
}
.art-gallery-empty-sub {
  font-size: 13.5px;
  color: var(--ink-400);
}

/* SPECIFICHE TABLE */
.art-section { padding: clamp(56px, 6vw, 80px) 0; }

.art-specs {
  background: #fff;
  border: 1px solid var(--ink-100);
  border-radius: var(--r-md);
  overflow: hidden;
}
.art-specs-toggle {
  width: 100%;
  display: flex; justify-content: space-between; align-items: center;
  padding: 26px 32px;
  background: transparent;
  text-align: left;
}
.art-specs-toggle .kicker { margin-bottom: 0; }
.art-specs-plus {
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--primary);
  display: none;
}
.art-specs-body { padding: 0 32px 32px; }
.art-specs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0 48px;
  border-top: 1px solid var(--ink-100);
  padding-top: 8px;
}
.art-specs-grid .row {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--ink-100);
  align-items: baseline;
}
.art-specs-grid .row.row-wide {
  grid-column: 1 / -1;
  grid-template-columns: 160px 1fr;
}
.art-specs-grid .row:last-child { border-bottom: 0; }
.art-specs-grid .k {
  font-family: var(--font-mono);
  font-size: 10.5px; letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-500);
  font-weight: 500;
}
.art-specs-grid .v {
  font-size: 14.5px;
  color: var(--ink-900);
  font-weight: 500;
  line-height: 1.5;
}

.art-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.art-chip {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: .06em;
  padding: 5px 10px;
  border-radius: 3px;
  background: var(--paper-2);
  color: var(--ink-700);
}
.art-chip-cert {
  background: rgba(47,125,91,.08);
  color: #2f7d5b;
  display: inline-flex; align-items: center; gap: 5px;
}

.art-badges { display: flex; gap: 8px; }
.art-badge {
  display: inline-flex; align-items: center; gap: 5px;
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: .08em;
  padding: 5px 10px;
  border-radius: 3px;
  background: var(--ink-900);
  color: #fff;
  font-weight: 500;
}

.art-list {
  list-style: none; padding: 0; margin: 0;
  display: flex; flex-direction: column; gap: 6px;
  font-size: 14px;
  color: var(--ink-700);
  font-weight: 400;
}
.art-list li {
  position: relative;
  padding-left: 16px;
}
.art-list li::before {
  content: ""; position: absolute;
  left: 0; top: 8px;
  width: 8px; height: 1px;
  background: var(--primary);
}

/* DESCRIZIONE */
.art-desc-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: clamp(32px, 5vw, 72px);
  align-items: flex-start;
}
.art-desc-head h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.4vw, 44px);
  font-weight: 400;
  letter-spacing: -.025em;
  line-height: 1;
  margin: 8px 0 0;
}
.art-desc-head h2 .em { font-style: italic; color: var(--primary); }
.art-desc-body {
  display: flex; flex-direction: column;
  gap: 18px;
  max-width: 60ch;
}
.art-desc-body p {
  font-size: 15.5px;
  line-height: 1.65;
  color: var(--ink-700);
  margin: 0;
}
.art-desc-body p.lede {
  font-size: 18px;
  color: var(--ink-900);
  font-weight: 400;
}

/* EVENTI CHIPS */
.art-events {
  display: flex; flex-wrap: wrap;
  gap: 10px;
  margin-top: 32px;
}
.art-event-chip {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 12px 18px;
  border: 1px solid var(--ink-200);
  border-radius: 999px;
  background: #fff;
  font-size: 14px; font-weight: 500;
  color: var(--ink-900);
}
.art-event-chip .dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--primary);
}

/* DOCUMENTAZIONE */
.art-docs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--ink-100);
  border: 1px solid var(--ink-100);
  margin-top: 32px;
}
.art-doc-card {
  display: flex; flex-direction: column;
  background: var(--paper-2);
  padding: 28px 32px;
  position: relative;
  transition: background .18s ease;
  min-height: 200px;
}
.art-doc-card:hover { background: #fff; }
.art-doc-num {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: .14em;
  color: var(--primary);
  font-weight: 500;
  margin-bottom: 18px;
}
.art-doc-type {
  position: absolute; top: 24px; right: 28px;
  font-family: var(--font-mono);
  font-size: 9.5px; letter-spacing: .14em;
  text-transform: uppercase;
  padding: 4px 7px;
  border-radius: 3px;
  background: var(--ink-900);
  color: #fff;
}
.art-doc-card h3 {
  font-family: var(--font-display);
  font-size: 22px;
  letter-spacing: -.018em;
  font-weight: 500;
  margin: 0 0 8px;
}
.art-doc-card p {
  font-size: 13.5px;
  color: var(--ink-500);
  line-height: 1.5;
  margin: 0 0 auto;
}
.art-doc-bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 18px;
  margin-top: 18px;
  border-top: 1px solid var(--ink-100);
}
.art-doc-size {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: .08em;
  color: var(--ink-400);
}
.art-doc-dl {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 12.5px; font-weight: 500;
  color: var(--ink-700);
  font-family: var(--font-mono);
  letter-spacing: .08em;
  text-transform: uppercase;
}
.art-doc-card:hover .art-doc-dl { color: var(--primary); }

/* SHOWCASE INSTALLAZIONI */
.art-showcase {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  grid-auto-rows: 180px;
  gap: 12px;
  margin-top: 32px;
}
.art-show-card {
  position: relative;
  border-radius: var(--r-md);
  overflow: hidden;
  display: flex; flex-direction: column; justify-content: flex-end;
  color: #fff;
  transition: transform .25s ease;
}
.art-show-card:hover { transform: translateY(-3px); }
/* Masonry: 0-large, 1-tall, 2-wide, 3-small, 4-small, 5-wide */
.art-show-0 { grid-column: span 6; grid-row: span 2; }
.art-show-1 { grid-column: span 3; grid-row: span 2; }
.art-show-2 { grid-column: span 3; grid-row: span 1; }
.art-show-3 { grid-column: span 4; grid-row: span 1; }
.art-show-4 { grid-column: span 4; grid-row: span 1; }
.art-show-5 { grid-column: span 4; grid-row: span 1; }
.art-show-img {
  position: absolute; inset: 0;
  transition: transform .4s ease;
}
.art-show-card:hover .art-show-img { transform: scale(1.04); }
.art-show-img::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0) 30%, rgba(10,10,12,.85) 100%);
}
.art-show-cat {
  position: absolute; top: 12px; left: 12px;
  z-index: 2;
  font-family: var(--font-mono);
  font-size: 10px; letter-spacing: .14em;
  text-transform: uppercase;
  color: #fff;
  background: rgba(0,0,0,.4);
  padding: 4px 8px; border-radius: 3px;
  -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px);
}
.art-show-meta {
  position: relative; z-index: 2;
  padding: 16px 20px;
}
.art-show-meta h4 {
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: -.012em;
  font-weight: 500;
  color: #fff;
  margin: 0 0 4px;
}
.art-show-loc {
  display: inline-flex; align-items: center; gap: 5px;
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: .08em;
  color: rgba(255,255,255,.78);
}

/* STICKY MOBILE CTA */
.art-sticky-mobile {
  position: fixed; left: 0; right: 0; bottom: 0;
  z-index: 50;
  display: none;
  padding: 12px 16px;
  background: rgba(255,255,255,.96);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  backdrop-filter: saturate(180%) blur(12px);
  border-top: 1px solid var(--ink-200);
  align-items: center; gap: 12px;
  box-shadow: 0 -2px 16px rgba(0,0,0,.06);
}
.art-page.art-mobile .art-sticky-mobile { display: flex; }
.art-sticky-info {
  flex: 1;
  min-width: 0;
}
.art-sticky-code {
  font-family: var(--font-mono);
  font-size: 9.5px; letter-spacing: .14em;
  color: var(--primary);
  font-weight: 500;
}
.art-sticky-name {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 500;
  color: var(--ink-900);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  letter-spacing: -.01em;
}
.art-sticky-mobile .btn { flex-shrink: 0; padding: 10px 16px; font-size: 12.5px; }

.art-page.art-mobile { padding-bottom: 80px; }

/* LIGHTBOX */
.lb-overlay {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(8,8,10,.96);
  display: flex; flex-direction: column;
  animation: lbFade .25s ease;
}
@keyframes lbFade { from { opacity: 0; } }
.lb-close {
  position: absolute; top: 24px; right: 24px;
  z-index: 5;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: rgba(255,255,255,.1);
  color: #fff;
  display: grid; place-items: center;
  border: 1px solid rgba(255,255,255,.18);
  transition: all .15s;
}
.lb-close:hover { background: rgba(255,255,255,.2); }
.lb-nav {
  position: absolute; top: 50%;
  transform: translateY(-50%);
  z-index: 5;
  width: 56px; height: 56px;
  border-radius: 50%;
  background: rgba(255,255,255,.1);
  color: #fff;
  font-size: 24px;
  display: grid; place-items: center;
  border: 1px solid rgba(255,255,255,.18);
  font-family: var(--font-display);
  transition: all .15s;
}
.lb-nav:hover { background: rgba(255,255,255,.2); }
.lb-prev { left: 24px; }
.lb-next { right: 24px; }
.lb-stage {
  flex: 1;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 80px 100px 32px;
  gap: 20px;
}
.lb-img {
  width: 100%;
  max-width: 1200px;
  flex: 1;
  border-radius: var(--r-md);
  position: relative;
  max-height: calc(100vh - 240px);
  min-height: 320px;
}
.lb-img-label {
  position: absolute; bottom: 14px; left: 14px;
  font-family: var(--font-mono);
  font-size: 10.5px; letter-spacing: .12em;
  color: rgba(255,255,255,.7);
  background: rgba(0,0,0,.5);
  padding: 4px 10px; border-radius: 3px;
}
.lb-meta {
  display: flex; align-items: center; gap: 14px;
  color: rgba(255,255,255,.7);
}
.lb-counter {
  font-family: var(--font-mono);
  font-size: 12px; letter-spacing: .14em;
  color: var(--primary);
}
.lb-name {
  font-family: var(--font-display);
  font-size: 16px;
  color: #fff;
  font-weight: 400;
}
.lb-strip {
  display: flex; gap: 6px;
  max-width: 100%;
  overflow-x: auto;
  padding: 4px 0;
  scrollbar-width: thin;
}
.lb-thumb {
  width: 80px; height: 56px;
  flex-shrink: 0;
  border-radius: 4px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: border-color .15s, opacity .15s;
  opacity: .55;
}
.lb-thumb:hover { opacity: .85; }
.lb-thumb.on { border-color: var(--primary); opacity: 1; }

/* PEN — showcase wrapper */
.art-pen { background: var(--ink-50, #f5f4f2); }
.art-pen-toolbar {
  position: sticky; top: var(--header-h); z-index: 25;
  background: rgba(250,250,248,.95);
  -webkit-backdrop-filter: saturate(160%) blur(10px); backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--ink-100);
}
.art-pen-toolbar-inner {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 32px;
  padding: 24px var(--gutter);
  align-items: flex-start;
}
.art-pen-meta .kicker { margin-bottom: 6px; }
.art-pen-title {
  font-family: var(--font-display);
  font-size: clamp(24px, 2.4vw, 32px);
  font-weight: 400;
  letter-spacing: -.025em;
  margin: 0;
  line-height: 1.05;
}
.art-pen-title .em { font-style: italic; color: var(--primary); }
.art-pen-sub {
  font-size: 13.5px;
  color: var(--ink-500);
  margin: 6px 0 0;
}
.art-pen-tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}
.art-pen-tab {
  text-align: left;
  padding: 12px 16px;
  border: 1px solid var(--ink-200);
  border-radius: 8px;
  background: #fff;
  display: flex; flex-direction: column;
  gap: 4px;
  transition: all .15s;
  cursor: pointer;
}
.art-pen-tab:hover { border-color: var(--ink-400); }
.art-pen-tab.on {
  border-color: var(--ink-1000);
  background: var(--ink-1000);
  color: #fff;
}
.art-pen-tab-label {
  font-size: 13px;
  font-weight: 500;
  color: inherit;
  letter-spacing: -.005em;
}
.art-pen-tab-desc {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .04em;
  color: var(--ink-500);
  opacity: .85;
}
.art-pen-tab.on .art-pen-tab-desc { color: rgba(255,255,255,.7); }

.art-pen-stage {
  position: relative;
  background: var(--paper);
  margin: 24px var(--gutter);
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: 0 2px 30px rgba(0,0,0,.06);
}

/* RESPONSIVE */
@media (max-width: 1100px) {
  .art-hero-inner { grid-template-columns: 1fr; }
  .art-hero-left { position: static; order: 2; }
  .art-hero-right { order: 1; }
  .art-specs-grid { grid-template-columns: 1fr; gap: 0; }
  .art-specs-grid .row, .art-specs-grid .row.row-wide { grid-template-columns: 140px 1fr; }
  .art-desc-grid { grid-template-columns: 1fr; }
  .art-docs-grid { grid-template-columns: 1fr; }
  .art-showcase { grid-template-columns: repeat(6, 1fr); grid-auto-rows: 160px; }
  .art-show-0 { grid-column: span 6; grid-row: span 2; }
  .art-show-1 { grid-column: span 3; }
  .art-show-2 { grid-column: span 3; }
  .art-show-3, .art-show-4, .art-show-5 { grid-column: span 2; }
  .art-pen-toolbar-inner { grid-template-columns: 1fr; }
  .art-pen-tabs { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 700px) {
  .art-specs-toggle { padding: 18px 20px; }
  .art-specs-toggle .art-specs-plus { display: block; }
  .art-specs-body {
    max-height: 0; overflow: hidden;
    padding: 0 20px;
    transition: max-height .3s ease, padding .3s ease;
  }
  .art-specs.open .art-specs-body {
    max-height: 1400px;
    padding: 0 20px 20px;
  }
  .art-specs-grid .row, .art-specs-grid .row.row-wide {
    grid-template-columns: 1fr;
    gap: 4px;
    padding: 12px 0;
  }
  .art-showcase { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 140px; }
  .art-show-0, .art-show-1, .art-show-2, .art-show-3, .art-show-4, .art-show-5 { grid-column: span 2; grid-row: span 1; }
  .art-show-0 { grid-row: span 2; }
  .lb-stage { padding: 60px 16px 16px; }
  .lb-nav { width: 44px; height: 44px; font-size: 18px; }
  .lb-prev { left: 12px; } .lb-next { right: 12px; }
}