/* ==========================================================================
   Giusto Peso Per Sempre — intestazione e menu (logo, voci con icone, «Libri», corso, menu a panino)
   Lo stesso file per il sito (inc/layout/header.php) e per la striscia in cima alle pagine dei libri:
   tutto è dentro .top e non usa le classi dei libri (.brand, .btn), con le sue variabili (--m-…).
   Telefono e tablet (≤ 1080 px, con JavaScript): menu «a panino», assets/js/main.js.
   ========================================================================== */
@font-face { font-family: "Fraunces"; src: url("../fonts/fraunces-400.woff2") format("woff2"); font-weight: 400; font-style: normal; font-display: swap; }
.top { --m-h: 76px; --m-gutter: clamp(16px, 4vw, 40px); --m-display: "Fraunces", "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --m-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --m-night: #17211b; --m-brown: #1f2b24; --m-terra: #3e6b4c; --m-terra-dark: #2c4f38; --m-gold: #c4d6b5; --m-sage: #a9c49d; --m-sand: #e7ece0; --m-ink: #1c241f; --m-muted: #5d6a61; --m-line: #d9e1d3;
  --gp-a: #7f9e76; --gp-b: #dce9d4; --gp-t: #fff; --gp-i: #c4d6b5;
  position: sticky; top: 0; z-index: 50; background: rgba(23,33,27,.94); backdrop-filter: blur(12px) saturate(1.2); -webkit-backdrop-filter: blur(12px) saturate(1.2);
  border-bottom: 1px solid rgba(196,214,181,.14); color: #e3eadf; font: 400 16px/1.5 var(--m-sans); -webkit-font-smoothing: antialiased; }
.top *, .top *::before, .top *::after { box-sizing: border-box; }
.top-in { position: relative; display: flex; align-items: center; gap: 24px; min-height: var(--m-h); max-width: 1180px; margin: 0 auto; padding: 0 var(--m-gutter); }
.top a { text-decoration: none; }
.top :focus-visible { outline: 3px solid var(--m-gold); outline-offset: 3px; border-radius: 6px; }
.top .ico { width: 18px; height: 18px; flex: none; }
.gp-marca { display: flex; align-items: center; flex: none; color: inherit; border-radius: 6px; }
.top .logo { display: block; height: 44px; width: auto; aspect-ratio: 742.1 / 186; }
.top .nav { display: flex; align-items: center; gap: 4px 22px; margin: 0 0 0 auto; padding: 0; }
.top .nav > a, .menu-libri > summary { display: inline-flex; align-items: center; gap: 8px; padding: 8px 0; color: #e3eadf; font-size: .95rem; font-weight: 500; line-height: 1.3; white-space: nowrap; border-bottom: 1.5px solid transparent; cursor: pointer; transition: color .2s, border-color .2s; }
.top .nav > a .ico, .menu-libri > summary .ico { width: 18px; height: 18px; color: var(--m-sage); transition: color .2s; }
.top .nav > a:hover, .top .nav > a[aria-current], .menu-libri > summary:hover, .menu-libri[open] > summary, .menu-libri.attiva > summary { color: #fff; border-bottom-color: var(--m-gold); }
.top .nav > a:hover .ico, .menu-libri > summary:hover .ico, .menu-libri[open] > summary .ico, .menu-libri.attiva > summary .ico { color: var(--m-gold); }
.menu-libri { margin: 0; }
.menu-libri > summary { list-style: none; }
.menu-libri > summary::-webkit-details-marker { display: none; }
.menu-libri > summary::after { content: ""; width: 6px; height: 6px; margin: -3px 0 0 1px; border-right: 1.5px solid var(--m-sage); border-bottom: 1.5px solid var(--m-sage); transform: rotate(45deg); transition: transform .2s; }
.menu-libri[open] > summary::after { transform: translateY(3px) rotate(-135deg); }
.menu-libri:not([open]) .pannello-libri { display: none; }
.pannello-libri { position: absolute; z-index: 60; top: calc(100% - 6px); right: var(--m-gutter); width: min(720px, calc(100% - 2 * var(--m-gutter))); padding: 20px 18px 16px; background: #fff; color: var(--m-ink); border-radius: 18px; box-shadow: 0 2px 6px rgba(15,25,18,.08), 0 40px 70px -24px rgba(15,25,18,.6); text-align: left; }
.pannello-intro { margin: 0 0 8px 8px; font-size: .8rem; font-weight: 600; letter-spacing: .02em; color: var(--m-muted); }
.pannello-libri ul { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 4px 8px; }
.pannello-libri li { margin: 0; padding: 0; }
.pannello-libri li a { display: grid; grid-template-columns: 46px minmax(0, 1fr); gap: 14px; align-items: center; padding: 10px; border-radius: 12px; color: var(--m-ink); transition: background-color .2s; }
.pannello-libri li a:hover, .pannello-libri li a:focus-visible, .pannello-libri li a[aria-current] { background: var(--m-sand); }
.pannello-libri img { display: block; width: 46px; height: auto; max-width: none; border-radius: 2px 4px 4px 2px; box-shadow: 0 8px 14px -8px rgba(31,43,36,.7); }
.pannello-libri b { display: block; font: 400 1rem/1.25 var(--m-display); color: var(--m-brown); }
.pannello-libri small { display: block; margin-top: 3px; font-size: .78rem; color: var(--m-terra); font-weight: 600; }
.pannello-tutti { display: inline-flex; align-items: center; gap: 7px; margin: 10px 0 0 10px; font-size: .9rem; font-weight: 600; color: var(--m-terra-dark); }
.pannello-tutti:hover { text-decoration: underline; }
.pannello-tutti .ico { width: 16px; height: 16px; }
.nav-corso { display: none; }
.top .top-cta { flex: none; display: inline-flex; align-items: center; gap: 8px; padding: 10px 18px; border-radius: 999px; background: var(--m-gold); color: var(--m-brown); font: 600 .92rem/1.2 var(--m-sans); white-space: nowrap; transition: background-color .2s; }
.top .top-cta:hover { background: #fff; color: var(--m-brown); }
.top .top-cta .ico { width: 16px; height: 16px; }
.menu-apri { display: none; }

@media (max-width: 1080px) {
  .js .menu-apri { display: inline-flex; align-items: center; gap: 10px; flex: none; min-height: 44px; margin: 0; padding: 8px 16px 8px 14px; border: 1px solid rgba(196,214,181,.4); border-radius: 999px; background: rgba(255,255,255,.06); color: #e3eadf; font: 600 .92rem/1 var(--m-sans); cursor: pointer; transition: background-color .2s, border-color .2s; }
  .js .menu-apri:hover, .js .top.aperta .menu-apri { border-color: var(--m-gold); background: rgba(255,255,255,.12); }
  .menu-linee { position: relative; width: 18px; height: 12px; }
  .menu-linee i { position: absolute; left: 0; width: 100%; height: 1.6px; border-radius: 2px; background: var(--m-gold); transition: transform .25s, opacity .2s, top .25s; }
  .menu-linee i:nth-child(1) { top: 0; } .menu-linee i:nth-child(2) { top: 5.2px; } .menu-linee i:nth-child(3) { top: 10.4px; }
  .top.aperta .menu-linee i:nth-child(1) { top: 5.2px; transform: rotate(45deg); }
  .top.aperta .menu-linee i:nth-child(2) { opacity: 0; }
  .top.aperta .menu-linee i:nth-child(3) { top: 5.2px; transform: rotate(-45deg); }
  .js .top .top-cta { margin-left: auto; }
  .js .top .nav { display: none; }
  .js .top.aperta .nav { position: absolute; z-index: 55; top: calc(100% + 8px); left: var(--m-gutter); right: var(--m-gutter); display: block; max-height: calc(100vh - var(--m-h) - 24px); max-height: calc(100dvh - var(--m-h) - 24px); overflow-y: auto; overscroll-behavior: contain; margin: 0; padding: 8px 18px 18px; background: #fff; color: var(--m-ink); border-radius: 22px; box-shadow: 0 40px 80px -30px rgba(10,18,13,.75); }
  .js .top.aperta .nav > a, .js .top.aperta .menu-libri > summary { display: flex; width: 100%; gap: 14px; padding: 15px 4px; border-bottom: 1px solid var(--m-line); color: var(--m-brown); font-size: 1.05rem; font-weight: 600; }
  .js .top.aperta .nav > a .ico, .js .top.aperta .menu-libri > summary .ico { width: 21px; height: 21px; color: var(--m-terra); }
  .js .top.aperta .nav > a:hover, .js .top.aperta .menu-libri > summary:hover, .js .top.aperta .nav > a[aria-current], .js .top.aperta .menu-libri.attiva > summary { color: var(--m-terra-dark); border-bottom-color: var(--m-line); }
  .js .top.aperta .menu-libri > summary::after { margin: -3px 6px 0 auto; border-color: var(--m-terra); }
  .js .top.aperta .menu-libri[open] > summary { border-bottom-color: transparent; }
  .js .top.aperta .pannello-libri { position: static; width: auto; margin: 0 0 6px; padding: 10px 8px 12px; border-radius: 16px; background: var(--m-sand); box-shadow: none; }
  .js .top.aperta .pannello-libri ul { grid-template-columns: 1fr; }
  .js .top.aperta .pannello-libri li a:hover, .js .top.aperta .pannello-libri li a[aria-current] { background: #fff; }
  .js .top.aperta .nav-corso { display: block; margin-top: 16px; padding: 18px; border-radius: 16px; background: var(--m-brown); color: #e3eadf; }
  .nav-corso p { margin: 0 0 14px; font-size: .9rem; line-height: 1.45; }
  .nav-corso b { display: block; font: 400 1.3rem/1.2 var(--m-display); color: #fff; margin-bottom: 4px; }
  .nav-corso-btn { display: flex; align-items: center; justify-content: center; gap: 8px; width: 100%; padding: 14px 20px; border-radius: 999px; background: var(--m-gold); color: var(--m-brown); font: 600 1rem/1.2 var(--m-sans); }
  .nav-corso-btn:hover { background: #fff; }
  .nav-corso-btn .ico { width: 16px; height: 16px; }
  html.menu-aperto { overflow: hidden; }
}
@media (max-width: 760px) {
  .top { --m-h: 64px; }
  .top .logo { height: 38px; }
  .top-in { gap: 10px; }
  .top .solo-largo { display: none; }
  .top .top-cta { padding: 9px 14px; font-size: .86rem; }
  .js .menu-apri { padding: 8px 12px; }
  .js .menu-etichetta { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
  /* senza JavaScript: il menu resta sotto il logo e scorre in orizzontale */
  html:not(.js) .top-in { flex-wrap: wrap; padding-top: 10px; }
  html:not(.js) .top .nav { order: 3; width: 100%; margin: 0; overflow-x: auto; padding: 0 0 8px; gap: 18px; }
}
@media (max-width: 400px) {
  .top .logo { height: 33px; }
  .top .top-cta { padding: 8px 11px; }
  .top .top-cta .ico { display: none; }
}
@media (prefers-reduced-motion: reduce) { .top *, .top *::before, .top *::after { transition: none !important; } }