/* =========================================================
   DRIN/NIK — Header plexiglass  ·  v2.3
   I valori in :root sono i predefiniti: il plugin li sovrascrive
   con quelli salvati in Impostazioni › Header DRIN/NIK.
   ========================================================= */

@property --dn-item-h { syntax: "<length>"; inherits: true; initial-value: 40px; }
@property --dn-ico    { syntax: "<length>"; inherits: true; initial-value: 18px; }
@property --dn-mark-w { syntax: "<length>"; inherits: true; initial-value: 42px; }
@property --dn-pad    { syntax: "<length>"; inherits: true; initial-value: 4px; }
@property --dn-px     { syntax: "<length>"; inherits: true; initial-value: 11px; }

:root {
  /* colori (palette Avada, con HEX ufficiali di riserva) */
  --dn-nik: var(--awb-color4, #CD3661);
  --dn-drin: var(--awb-color5, #35A8CC);
  --dn-ant: var(--awb-color7, #3D3D3D);
  --dn-white: var(--awb-color1, #FFFFFF);
  --dn-on-accent: var(--dn-white);
  --dn-glow-size: 12px;
  --dn-glow-a: 50%;

  /* posizione */
  --dn-top: 20px;
  --dn-top-m: 14px;
  --dn-z: 10000;

  /* dimensioni: compatto */
  --dn-c-item-h: 40px; --dn-c-ico: 18px; --dn-c-mark: 42px; --dn-c-pad: 4px; --dn-c-px: 11px;
  /* dimensioni: aperto */
  --dn-o-item-h: 52px; --dn-o-ico: 22px; --dn-o-mark: 56px; --dn-o-pad: 8px; --dn-o-px: 20px;

  /* testo */
  --dn-font: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --dn-font-size: 15px;
  --dn-font-weight: 500;
  --dn-letter: .01em;
  --dn-lbl-gap: 10px;
  --dn-ico-stroke: 1.75;

  /* vetro */
  --dn-glass: rgba(255, 255, 255, .42);
  --dn-blur: 7px;
  --dn-sat: 1.35;
  --dn-bright: 1.15;
  --dn-border: rgba(255, 255, 255, .55);
  --dn-shadow: rgba(0, 0, 0, .45);
  --dn-fg: var(--dn-ant);

  /* animazioni */
  --dn-spring: cubic-bezier(.34, 1.45, .64, 1);   /* sostituita via JS da una curva a molla vera */
  --dn-open-ms: 800ms;
  --dn-in-ms: 700ms;
  --dn-ripple-ms: 750ms;
  --dn-ripple-o: .85;
  --dn-lit-scale: 1.08;
}

/* "dn-js" arriva da una riga nel <head>: la sorgente è nascosta dal primo disegno della pagina, niente lampo.
   Se dopo 3 s l'header non è partito, "dn-js" viene tolta e la sorgente ricompare (rete di sicurezza). */
html.dn-js .dn-source, html.dn-ready .dn-source { display: none !important; }

/* ---------- contenitore di vetro ---------- */
.dn-hdr {
  --dn-accent: var(--dn-nik);
  --dn-item-h: var(--dn-c-item-h); --dn-ico: var(--dn-c-ico); --dn-mark-w: var(--dn-c-mark); --dn-pad: var(--dn-c-pad); --dn-px: var(--dn-c-px);
  position: fixed; z-index: var(--dn-z);
  top: calc(env(safe-area-inset-top, 0px) + var(--dn-top));
  left: 0; right: 0; margin: 0 auto; width: max-content;
  max-width: calc(100vw - 32px);
  display: flex; align-items: center; gap: calc(var(--dn-pad) + 2px);
  padding: var(--dn-pad); border-radius: 999px;
  background: var(--dn-glass);
  -webkit-backdrop-filter: blur(var(--dn-blur)) saturate(var(--dn-sat)) brightness(var(--dn-bright));
  backdrop-filter: blur(var(--dn-blur)) saturate(var(--dn-sat)) brightness(var(--dn-bright));
  border: 1px solid var(--dn-border);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .75), inset 0 -1px 0 rgba(61, 61, 61, .08), 0 14px 36px -14px var(--dn-shadow);
  color: var(--dn-fg);
  font-family: var(--dn-font);
  animation: dn-in var(--dn-in-ms) var(--dn-spring) both;
  transition: --dn-item-h var(--dn-open-ms) var(--dn-spring), --dn-ico var(--dn-open-ms) var(--dn-spring),
              --dn-mark-w var(--dn-open-ms) var(--dn-spring), --dn-pad var(--dn-open-ms) var(--dn-spring),
              --dn-px var(--dn-open-ms) var(--dn-spring);
}
.dn-hdr.is-open { --dn-item-h: var(--dn-o-item-h); --dn-ico: var(--dn-o-ico); --dn-mark-w: var(--dn-o-mark); --dn-pad: var(--dn-o-pad); --dn-px: var(--dn-o-px); }
.admin-bar .dn-hdr:not(.dn-preview) { top: calc(32px + var(--dn-top)); }
@media (max-width: 782px) { .admin-bar .dn-hdr:not(.dn-preview) { top: calc(46px + var(--dn-top-m)); } }
@media (max-width: 760px) { .dn-hdr { top: calc(env(safe-area-inset-top, 0px) + var(--dn-top-m)); } }
/* anteprima nella pagina delle impostazioni */
.dn-hdr.dn-preview { position: absolute; top: 24px; max-width: calc(100% - 32px); }

@keyframes dn-in { from { opacity: 0; transform: translateY(8px) scale(.94); } to { opacity: 1; transform: none; } }

/* ---------- marchio ---------- */
.dn-brand { display: grid; place-items: center; height: var(--dn-item-h); padding: 0 calc(var(--dn-px) * .6) 0 calc(var(--dn-px) * .75); border-radius: 999px; text-decoration: none; }
.dn-mark { position: relative; display: block; width: var(--dn-mark-w); aspect-ratio: 730 / 415; will-change: transform; }
.dn-mark img { position: absolute; inset: 0; width: 100%; height: 100%; max-width: none; margin: 0; transition: opacity .35s; }
.dn-mark .dn-m-drin { transform: rotate(180deg); opacity: 0; }   /* il master DRIN ruotato coincide con NIK */
.dn-mark.drin .dn-m-nik { opacity: 0; }
.dn-mark.drin .dn-m-drin { opacity: 1; }

.dn-sep { width: 1px; height: calc(var(--dn-item-h) * .5); background: currentColor; opacity: .18; flex: none; }

/* ---------- navigazione ---------- */
.dn-navwrap { position: relative; }
.dn-nav { position: relative; z-index: 1; display: flex; gap: calc(var(--dn-pad) * .5); list-style: none; margin: 0; padding: 0; }
.dn-nav li { margin: 0; padding: 0; list-style: none; }
.dn-liquid {
  position: absolute; inset: -18px; pointer-events: none; z-index: 0;
  filter: url(#dn-goo) drop-shadow(0 0 var(--dn-glow-size) color-mix(in srgb, var(--dn-accent) var(--dn-glow-a), transparent));
}
.dn-liquid { transition: opacity .35s ease; }
.dn-liquid.dn-empty { opacity: 0; }
.dn-liquid i { position: absolute; left: 0; top: 0; display: block; background: var(--dn-accent); border-radius: 999px; transition: background-color .6s; will-change: transform; }

.dn-nav a {
  position: relative; display: flex; align-items: center;
  height: var(--dn-item-h); padding: 0 var(--dn-px); border-radius: 999px;
  color: inherit; text-decoration: none; box-shadow: none;
  font-family: var(--dn-font); font-size: var(--dn-font-size); font-weight: var(--dn-font-weight); line-height: 1;
  letter-spacing: var(--dn-letter);
  transition: color .35s;
}
.dn-nav a:hover, .dn-nav a:focus { color: inherit; }
.dn-nav a.lit { color: var(--dn-on-accent); }
.dn-hdr a:focus-visible { outline: 2px solid var(--dn-accent); outline-offset: 2px; }

/* icona: accetta sia icone font (<i>) sia SVG */
.dn-ico { position: relative; display: grid; place-items: center; width: var(--dn-ico); height: var(--dn-ico); flex: none; font-size: var(--dn-ico); line-height: 1; transition: transform .7s var(--dn-spring); }
.dn-ico i, .dn-ico svg { font-size: inherit; width: 1em; height: 1em; margin: 0; line-height: 1; }
.dn-ico svg { fill: none; stroke: currentColor; stroke-width: var(--dn-ico-stroke); stroke-linecap: round; stroke-linejoin: round; }
.dn-nav a.lit .dn-ico { transform: scale(var(--dn-lit-scale)) rotate(var(--dn-tilt, 0deg)); }

/* ripple al clic */
.dn-ico::before, .dn-ico::after { content: ""; position: absolute; inset: -9px; border-radius: 50%; border: 1.5px solid currentColor; opacity: 0; pointer-events: none; }
.dn-nav a.ping .dn-ico::before { animation: dn-ping var(--dn-ripple-ms) cubic-bezier(.15, .75, .3, 1); }
.dn-nav a.ping .dn-ico::after  { animation: dn-ping calc(var(--dn-ripple-ms) * 1.27) cubic-bezier(.15, .75, .3, 1) calc(var(--dn-ripple-ms) * .16); }
@keyframes dn-ping { 0% { opacity: var(--dn-ripple-o); transform: scale(.45); } 70% { opacity: calc(var(--dn-ripple-o) * .3); } 100% { opacity: 0; transform: scale(1.5); } }

/* etichette */
.dn-lbl {
  display: inline-block; overflow: hidden; white-space: nowrap;
  max-width: 0; opacity: 0; margin-left: 0; filter: blur(5px); transform: translateX(-6px);
  transition: max-width .5s cubic-bezier(.4, 0, .2, 1), margin-left .5s cubic-bezier(.4, 0, .2, 1), opacity .18s, filter .2s, transform .3s;
}
.dn-hdr.is-open .dn-lbl {
  max-width: 10em; opacity: 1; margin-left: var(--dn-lbl-gap); filter: blur(0); transform: none;
  transition: max-width var(--dn-open-ms) var(--dn-spring) var(--dn-d), margin-left var(--dn-open-ms) var(--dn-spring) var(--dn-d),
              opacity calc(var(--dn-open-ms) * .56) ease var(--dn-d2), filter calc(var(--dn-open-ms) * .7) ease var(--dn-d2),
              transform var(--dn-open-ms) var(--dn-spring) var(--dn-d2);
}

.dn-hdr.measuring, .dn-hdr.measuring * { transition: none !important; }
.dn-hdr.measuring { max-width: none; }

@media (prefers-reduced-motion: reduce) {
  .dn-hdr, .dn-lbl, .dn-nav a, .dn-ico { transition: none !important; }
  .dn-hdr { animation-duration: .01s; }
  .dn-nav a.ping .dn-ico::before, .dn-nav a.ping .dn-ico::after { animation: none; }
}