/* ══════════════════════════════════════════════════════════
   MODAL PRODOTTO – stile Klima Italia
   Aggiungere in cima a assets/css/style.css
   o come file separato incluso nelle pagine
   ══════════════════════════════════════════════════════════ */

/* ── OVERLAY ──────────────────────────────────────────────── */
.modal-overlay {
  display: none;
  position: fixed; inset: 0; z-index: 300;
  background: rgba(0,0,0,.55);
  backdrop-filter: blur(3px);
  overflow-y: auto;
  padding: 32px 16px;
}
.modal-overlay.open { display: flex; align-items: flex-start; justify-content: center; }

.modal-box {
  background: #fff;
  width: 100%; max-width: 980px;
  border-radius: 4px;
  overflow: hidden;
  position: relative;
  animation: modalIn .28s ease;
  box-shadow: 0 24px 60px rgba(0,0,0,.18);
}
@keyframes modalIn {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: none; }
}
.modal-close {
  position: absolute; top: 14px; right: 14px;
  background: rgba(0,0,0,.07); border: none;
  width: 32px; height: 32px; border-radius: 50%;
  font-size: 17px; color: #555; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  z-index: 10; transition: background .2s;
}
.modal-close:hover { background: rgba(0,0,0,.14); }

/* ── LAYOUT INTERNO ───────────────────────────────────────── */
.mprod-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 480px;
}

/* ── GALLERIA SINISTRA ────────────────────────────────────── */
.mprod-gallery {
  /*background: #f8f8f6;*/
  border-right: 1px solid #e8e8e4;
  padding: 32px 24px 24px;
  display: flex; flex-direction: column; gap: 14px;
  align-items: center;
}
.mprod-img-main {
  width: 100%;
  aspect-ratio: 1;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.mprod-img-main img {
  max-width: 100%; max-height: 100%;
  object-fit: contain;
  transition: transform .4s ease;
}
.mprod-img-main img:hover { transform: scale(1.04); }

/* Miniature */
.mprod-thumbs {
  display: flex; gap: 10px; flex-wrap: wrap; justify-content: center;
}
.mprod-thumb {
  width: 66px; height: 66px;
  border: 2px solid #e8e8e4;
  border-radius: 3px;
  cursor: pointer;
  overflow: hidden;
  background: #fff;
  position: relative;
  transition: border-color .2s;
  display: flex; align-items: center; justify-content: center;
}
.mprod-thumb img {
  width: 100%; height: 100%;
  object-fit: contain; padding: 4px;
}
.mprod-thumb.active { border-color: var(--blu, #3d8ec9); }
.mprod-thumb:hover  { border-color: var(--blu, #3d8ec9); }
.mprod-thumb-label {
  position: absolute; bottom: 0; left: 0; right: 0;
  background: rgba(0,0,0,.5);
  color: #fff; font-size: 9px; text-align: center;
  padding: 2px 0; font-weight: 700; letter-spacing: .06em;
}

/* PDF button */
.mprod-pdf-btn {
  display: inline-flex; align-items: center; gap: 7px;
  background: #fff; border: 1px solid #ddd;
  color: var(--blu, #3d8ec9);
  padding: 8px 16px; border-radius: 2px;
  font-size: 12px; font-weight: 700; letter-spacing: .06em;
  text-transform: uppercase; text-decoration: none;
  transition: background .2s, border-color .2s;
  margin-top: auto;
}
.mprod-pdf-btn:hover { background: rgba(61,142,201,.07); border-color: var(--blu, #3d8ec9); }

/* ── COLONNA INFO DESTRA ──────────────────────────────────── */
.mprod-info {
  padding: 36px 36px 32px;
  display: flex; flex-direction: column; gap: 0;
  overflow-y: auto; max-height: 80vh;
}
.mprod-breadcrumb {
  font-size: 11px; font-weight: 700;
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--blu, #3d8ec9); margin-bottom: 6px;
}
.mprod-codice {
  font-size: 11px; color: #aaa; font-weight: 600;
  letter-spacing: .1em; text-transform: uppercase;
  margin-bottom: 4px;
}
.mprod-nome {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: clamp(24px, 2.5vw, 32px);
  font-weight: 700; line-height: 1.1;
  color: #111; margin-bottom: 6px;
}
.mprod-sub {
  font-size: 14px; color: #666;
  line-height: 1.5; margin-bottom: 20px;
}

/* Tabella specs */
.mprod-specs { margin-bottom: 20px; }
.mprod-specs-title {
  font-size: 11px; font-weight: 700;
  letter-spacing: .14em; text-transform: uppercase;
  color: #aaa; margin-bottom: 10px;
  padding-bottom: 8px; border-bottom: 2px solid var(--blu, #3d8ec9);
}
.mprod-table {
  width: 100%; border-collapse: collapse;
  font-size: 13px;
}
.mprod-table tr { border-bottom: 1px solid #f0f0ee; }
.mprod-table tr:last-child { border-bottom: none; }
.mprod-td-lbl {
  padding: 8px 12px 8px 0;
  color: #888; font-weight: 600; white-space: nowrap;
  width: 42%;
}
.mprod-td-val {
  padding: 8px 0; color: #111; font-weight: 600;
}

/* Descrizione */
.mprod-desc { margin-bottom: 16px; }
.mprod-desc-title {
  font-size: 11px; font-weight: 700;
  letter-spacing: .14em; text-transform: uppercase;
  color: #aaa; margin-bottom: 8px;
}
.mprod-desc p {
  font-size: 13px; color: #555; line-height: 1.7;
}

/* Note tecniche */
.mprod-note {
  font-size: 12px; color: #666; background: #f8f8f6;
  border-left: 3px solid var(--blu, #3d8ec9);
  padding: 10px 14px; border-radius: 0 3px 3px 0;
  margin-bottom: 20px; line-height: 1.6;
}

/* CTA */
.mprod-cta {
  display: flex; gap: 10px; flex-wrap: wrap;
  margin-top: auto; padding-top: 20px;
  border-top: 1px solid #f0f0ee;
}
.mprod-btn-primary {
  flex: 1; min-width: 140px;
  background: var(--blu, #3d8ec9); color: #fff;
  padding: 12px 20px; border: none; border-radius: 2px;
  font-family: inherit; font-size: 12px; font-weight: 700;
  letter-spacing: .1em; text-transform: uppercase;
  cursor: pointer; text-align: center;
  transition: background .2s;
}
.mprod-btn-primary:hover { background: #2870a8; }
.mprod-btn-ghost {
  flex: 1; min-width: 120px;
  background: #fff; color: #333;
  padding: 12px 20px; border: 1px solid #ddd; border-radius: 2px;
  font-size: 12px; font-weight: 700;
  letter-spacing: .1em; text-transform: uppercase;
  text-decoration: none; text-align: center;
  transition: border-color .2s, color .2s;
}
.mprod-btn-ghost:hover { border-color: var(--blu, #3d8ec9); color: var(--blu, #3d8ec9); }

/* Loading / error */
.modal-loading {
  padding: 80px; text-align: center; color: #aaa; font-size: 15px;
}
.modal-error {
  padding: 40px; text-align: center; color: #c00; font-size: 14px;
}

/* ── RESPONSIVE ───────────────────────────────────────────── */
@media (max-width: 700px) {
  .mprod-wrap { grid-template-columns: 1fr; }
  .mprod-gallery { border-right: none; border-bottom: 1px solid #e8e8e4; padding: 24px; }
  .mprod-img-main { aspect-ratio: 4/3; }
  .mprod-info { padding: 24px; max-height: none; }
  .modal-overlay { padding: 0; }
  .modal-box { border-radius: 0; min-height: 100vh; }
}

/* ── LIGHTBOX IMMAGINE ────────────────────────────────────── */
.lightbox {
  display: none;
  position: fixed; inset: 0; z-index: 500;
  background: rgba(0,0,0,.92);
  align-items: center; justify-content: center;
  cursor: zoom-out;
}
.lightbox.open { display: flex; }
.lightbox img {
  max-width: 92vw; max-height: 92vh;
  object-fit: contain;
  animation: lbIn .22s ease;
  cursor: default;
  border-radius: 2px;
}
@keyframes lbIn {
  from { opacity: 0; transform: scale(.93); }
  to   { opacity: 1; transform: none; }
}
.lightbox-close {
  position: fixed; top: 18px; right: 20px;
  background: rgba(255,255,255,.12); border: none;
  color: #fff; font-size: 22px; width: 40px; height: 40px;
  border-radius: 50%; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background .2s;
}
.lightbox-close:hover { background: rgba(255,255,255,.22); }
.lightbox-nav {
  position: fixed; top: 50%; transform: translateY(-50%);
  background: rgba(255,255,255,.12); border: none;
  color: #fff; font-size: 24px; width: 44px; height: 44px;
  border-radius: 50%; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background .2s;
}
.lightbox-nav:hover { background: rgba(255,255,255,.22); }
.lightbox-prev { left: 16px; }
.lightbox-next { right: 16px; }

/* cursore zoom sull'immagine principale */
.mprod-img-main { cursor: zoom-in; }
.mprod-img-main img { cursor: zoom-in; }

/* ── PDF VIEWER ───────────────────────────────────────────── */
.pdf-overlay {
  display: none;
  position: fixed; inset: 0; z-index: 600;
  background: rgba(0,0,0,.88);
  flex-direction: column;
  align-items: center; justify-content: flex-start;
  padding: 0;
}
.pdf-overlay.open { display: flex; }

.pdf-toolbar {
  width: 100%; background: #1a1a1a;
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 20px; gap: 12px; flex-shrink: 0;
}
.pdf-toolbar-title {
  color: #fff; font-size: 13px; font-weight: 600;
  letter-spacing: .04em; white-space: nowrap;
  overflow: hidden; text-overflow: ellipsis;
}
.pdf-toolbar-actions { display: flex; gap: 10px; align-items: center; flex-shrink: 0; }
.pdf-btn-download {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--blu, #3d8ec9); color: #fff;
  padding: 7px 16px; border-radius: 2px; border: none;
  font-size: 12px; font-weight: 700; letter-spacing: .08em;
  text-transform: uppercase; text-decoration: none; cursor: pointer;
  transition: background .2s;
}
.pdf-btn-download:hover { background: #2870a8; }
.pdf-btn-close {
  background: rgba(255,255,255,.1); border: none;
  color: #fff; width: 32px; height: 32px; border-radius: 50%;
  font-size: 17px; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background .2s;
}
.pdf-btn-close:hover { background: rgba(255,255,255,.2); }

.pdf-frame-wrap {
  flex: 1; width: 100%; overflow: hidden;
  display: flex; align-items: stretch;
}
.pdf-frame-wrap iframe {
  width: 100%; height: 100%; border: none;
  background: #525659;
}

/* Fallback se iframe non supportato */
.pdf-fallback {
  display: none;
  flex: 1; align-items: center; justify-content: center;
  flex-direction: column; gap: 16px; color: #aaa;
  font-size: 14px; text-align: center; padding: 40px;
}
.pdf-fallback.show { display: flex; }