/* Vetrina della Libreria L&B — direzione «Archivio editoriale» (Claude Design, 22/10/2026, variante A)
   con la striscia di numeri per area presa dalla variante C. */
:root {
  --carta: oklch(0.968 0.006 150);
  --carta-2: oklch(0.93 0.012 150);
  --inchiostro: oklch(0.21 0.015 200);
  --tenue: oklch(0.46 0.015 190);
  --linea: oklch(0.86 0.012 160);
  --ruggine: oklch(0.42 0.075 165); /* verde archivio */
  --su-ruggine: oklch(0.98 0.006 150);
  --verde: oklch(0.5 0.1 150);
  --ombra: 0 24px 60px -30px oklch(0.25 0.03 190 / .35);
  --serif: "Instrument Serif", "Iowan Old Style", Georgia, serif;
  --mono: "IBM Plex Mono", ui-monospace, Consolas, monospace;
  --sans: "Schibsted Grotesk", ui-sans-serif, system-ui, sans-serif;
  --numeri: "Bricolage Grotesque", var(--sans);
  --gutter: clamp(16px, 4vw, 48px);
  --ease-out: cubic-bezier(0.23, 1, 0.32, 1);
  color-scheme: light;
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 16px; }
body { margin: 0; background: var(--carta); color: var(--inchiostro); font: 400 16px/1.55 var(--sans); overflow-x: clip; }
a { color: var(--ruggine); text-underline-offset: 3px; }
a:hover { color: var(--inchiostro); }
button { font: inherit; color: inherit; touch-action: manipulation; }
a, button { -webkit-tap-highlight-color: oklch(0.42 0.075 165 / .15); }
img { display: block; max-width: 100%; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.salta { position: absolute; left: 8px; top: -60px; background: var(--inchiostro); color: var(--carta); padding: 10px 14px; border-radius: 8px; z-index: 20; }
.salta:focus { top: 8px; }
.salta:hover { color: var(--carta); }
:focus-visible { outline: 2px solid var(--ruggine); outline-offset: 3px; }

.testata { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; padding: 22px var(--gutter); border-bottom: 1px solid var(--linea); }
.marca { font: 400 clamp(24px, 3vw, 30px)/1 var(--serif); letter-spacing: -.01em; }
.meta { font: 500 13px/1.4 var(--sans); color: var(--tenue); text-align: right; }

.apertura { padding: clamp(36px, 7vw, 88px) var(--gutter) clamp(24px, 4vw, 40px); max-width: 1180px; }
.apertura h1 { font: 400 clamp(46px, 8.4vw, 112px)/.92 var(--serif); letter-spacing: -.02em; margin: 0; text-wrap: balance; }
.apertura h1 { max-width: 15ch; }
.ordine { display: flex; flex-wrap: wrap; gap: 6px 18px; margin: 22px 0 0; font: 500 15px/1.3 var(--sans); color: var(--tenue); padding: 0; list-style: none; counter-reset: passo; }
.ordine li { counter-increment: passo; }
.ordine li::before { content: counter(passo) ". "; color: var(--ruggine); font-weight: 700; }
.cerca { display: block; margin-top: 26px; max-width: 640px; }
.cerca input { width: 100%; font: 400 17px/1.2 var(--sans); color: var(--inchiostro); background: transparent; border: 1px solid var(--inchiostro); border-radius: 999px; padding: 16px 22px; min-height: 52px; }
.cerca input::placeholder { color: var(--tenue); }

/* Striscia delle aree: numeri grandi (dalla variante C) */
.aree { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(118px, 1fr); overflow-x: auto; margin: 0 var(--gutter); border-top: 2px solid var(--inchiostro); scrollbar-width: none; scroll-snap-type: x mandatory; }
.aree::-webkit-scrollbar { display: none; }
.aree button { all: unset; cursor: pointer; scroll-snap-align: start; padding: 14px 12px 16px; border-right: 1px solid var(--linea); display: grid; gap: 6px; min-height: 44px; transition: background-color .2s ease, color .2s ease; }
.aree button b { font: 800 clamp(32px, 4vw, 44px)/1 var(--numeri); letter-spacing: -.035em; }
.aree button span { font: 600 14px/1.2 var(--sans); }
.aree button[aria-pressed="true"] { background: var(--ruggine); color: var(--su-ruggine); }
.aree button:focus-visible { outline-offset: -3px; }
@media (hover: hover) and (pointer: fine) { .aree button:not([aria-pressed="true"]):hover { background: var(--carta-2); } }

.filtri { display: flex; flex-wrap: wrap; gap: 8px; padding: 18px var(--gutter) 0; }
.filtri button { font: 500 14px/1 var(--sans); border: 1px solid var(--linea); background: transparent; border-radius: 999px; padding: 0 16px; min-height: 44px; cursor: pointer; transition: border-color .2s ease, background-color .2s ease; }
.filtri button[aria-pressed="true"] { background: var(--inchiostro); color: var(--carta); border-color: var(--inchiostro); }
@media (hover: hover) and (pointer: fine) { .filtri button:hover { border-color: var(--inchiostro); } }
.conteggio { padding: 20px var(--gutter) 0; margin: 0; font: 500 14px/1.4 var(--sans); color: var(--tenue); }

.griglia { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 250px), 1fr)); gap: 28px 20px; padding: 18px var(--gutter) 80px; }
.carta { color: inherit; text-decoration: none; content-visibility: auto; contain-intrinsic-size: auto 420px; cursor: pointer; display: grid; gap: 10px; align-content: start; border-radius: 6px; }
.carta .foto { transition: transform 160ms var(--ease-out); aspect-ratio: 4 / 5; border-radius: 4px; overflow: hidden; background: var(--carta-2); position: relative; }
.carta .foto img { width: 100%; height: 100%; object-fit: cover; object-position: top; transition: transform 300ms var(--ease-out); }
.carta .foto.vuota { background: var(--carta-2); border: 1px solid var(--linea); display: grid; align-content: end; padding: 14px; }
.carta .foto.vuota span { font: 500 10px/1.4 var(--mono); color: var(--tenue); overflow-wrap: anywhere; }
.carta .bollini { position: absolute; top: 10px; left: 10px; right: 10px; display: flex; justify-content: space-between; gap: 6px; }
.bollino { font: 600 11px/1 var(--sans); background: var(--carta); color: var(--inchiostro); border-radius: 999px; padding: 6px 8px; }
.bollino.vivo { background: var(--inchiostro); color: var(--carta); }
.carta small { font: 500 13px/1.3 var(--sans); color: var(--tenue); }
.carta .riga { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; }
.carta .titolo { margin: 0; font: 400 22px/1.08 var(--serif); }
.carta .voto { font: 700 15px/1 var(--numeri); color: var(--ruggine); }
.carta:focus-visible { outline: 2px solid var(--ruggine); outline-offset: 6px; }
@media (hover: hover) and (pointer: fine) { .carta:hover .foto img { transform: scale(1.03); } .carta:hover .titolo { color: var(--ruggine); } }
.carta:active .foto { transform: scale(.975); }
.aree button:active, .filtri button:active, .voce-comandi button:active, .chiudi:active { transform: scale(.97); }
.aree button, .filtri button, .voce-comandi button, .chiudi { transition-property: background-color, color, border-color, transform; transition-duration: 160ms; transition-timing-function: var(--ease-out); }

.piede { border-top: 1px solid var(--linea); padding: 28px var(--gutter) 48px; font: 400 14px/1.6 var(--sans); color: var(--tenue); display: grid; gap: 4px; }
.piede p { margin: 0; max-width: 90ch; }

/* Scheda aperta */
.voce { border: 0; padding: 0; margin: 0; width: 100vw; max-width: 100vw; height: 100dvh; max-height: 100dvh; background: var(--carta); color: var(--inchiostro); }
.voce::backdrop { background: oklch(0.2 0.01 60 / .5); }
.voce[open] { animation: entra 260ms var(--ease-out); }
@keyframes entra { from { opacity: 0; transform: translateY(12px) scale(.99); } }
.voce-dentro { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); height: 100%; }
.voce-palco, .voce-testo { min-width: 0; }
.voce-palco { background: var(--carta-2); display: grid; grid-template-rows: auto 1fr; min-height: 0; border-right: 1px solid var(--linea); }
.voce-comandi { display: flex; gap: 8px; align-items: center; padding: max(16px, env(safe-area-inset-top)) max(20px, env(safe-area-inset-right)) 16px max(20px, env(safe-area-inset-left)); flex-wrap: wrap; }
.voce-comandi button { font: 500 14px/1 var(--sans); border: 1px solid var(--linea); background: var(--carta); border-radius: 999px; padding: 0 16px; min-height: 44px; cursor: pointer; }
.voce-comandi button[aria-pressed="true"] { background: var(--inchiostro); color: var(--carta); border-color: var(--inchiostro); }
.voce-comandi a { margin-left: auto; font: 500 14px/1 var(--sans); }
.palco { position: relative; min-height: 0; display: grid; place-items: center; padding: 8px 20px 24px; overflow: hidden; }
.iphone { width: calc(390px + 24px); height: calc(844px + 24px); border-radius: 64px; padding: 12px; background: oklch(0.18 0.005 60); box-shadow: var(--ombra), inset 0 0 0 2px oklch(0.32 0.005 60); position: absolute; top: 0; left: 0; transform-origin: 0 0; }
.iphone::before { content: ""; position: absolute; top: 24px; left: 50%; translate: -50% 0; width: 118px; height: 34px; border-radius: 20px; background: #000; z-index: 2; pointer-events: none; }
.iphone iframe, .iphone img { width: 390px; height: 844px; border: 0; border-radius: 52px; background: #fff; display: block; object-fit: cover; object-position: top; }
.schermo { position: absolute; top: 0; left: 0; transform-origin: 0 0; width: 1440px; height: 900px; border-radius: 12px; overflow: hidden; box-shadow: var(--ombra), 0 0 0 1px var(--linea); background: #fff; }
.cornice { position: relative; flex: none; }
.schermo iframe, .schermo img { width: 1440px; height: 900px; border: 0; display: block; object-fit: cover; object-position: top; }
.senza-demo { max-width: 420px; text-align: left; font: 500 13px/1.6 var(--mono); color: var(--tenue); background: var(--carta); border: 1px solid var(--linea); padding: 28px; border-radius: 8px; }
.senza-demo code { overflow-wrap: anywhere; color: var(--inchiostro); }

.voce-testo { position: relative; overflow-y: auto; padding: 28px clamp(20px, 4vw, 48px) max(64px, env(safe-area-inset-bottom)); overscroll-behavior: contain; }
.chiudi { position: sticky; top: 0; float: right; width: 44px; height: 44px; border-radius: 999px; border: 1px solid var(--linea); background: var(--carta); font-size: 24px; line-height: 1; cursor: pointer; z-index: 2; }
.voce-meta { font: 500 14px/1.4 var(--sans); color: var(--tenue); margin: 10px 0 0; }
.voce-testo h2 { font: 400 clamp(34px, 4vw, 52px)/1 var(--serif); margin: 12px 0 18px; letter-spacing: -.01em; text-wrap: balance; }
.voce-dati { display: grid; grid-template-columns: auto 1fr; gap: 8px 16px; margin: 0 0 24px; padding: 16px 0; border-block: 1px solid var(--linea); font-size: 14px; }
.voce-dati dt { font: 600 13px/1.6 var(--sans); color: var(--tenue); }
.voce-dati dd { margin: 0; overflow-wrap: anywhere; }
.scheda { font-size: 15.5px; }
.scheda h1 { display: none; }
.scheda h2 { font: 400 26px/1.1 var(--serif); margin: 28px 0 8px; }
.scheda h3 { font: 600 15px/1.3 var(--sans); margin: 20px 0 6px; }
.scheda p, .scheda li { max-width: 68ch; }
.scheda pre { background: oklch(0.2 0.01 60); color: oklch(0.94 0.01 80); padding: 16px; border-radius: 8px; overflow-x: auto; font: 400 12.5px/1.55 var(--mono); }
.scheda code { font-family: var(--mono); font-size: .9em; overflow-wrap: anywhere; }
.scheda pre code { overflow-wrap: normal; }
.scheda table { border-collapse: collapse; font-size: 13px; display: block; overflow-x: auto; }
.scheda th, .scheda td { border-bottom: 1px solid var(--linea); padding: 6px 10px 6px 0; text-align: left; vertical-align: top; }

@media (max-width: 900px) {
  .voce-dentro { display: block; overflow-y: auto; height: 100%; }
  .voce-palco { border-right: 0; border-bottom: 1px solid var(--linea); }
  .palco { height: min(74svh, 680px); }
  .voce-testo { overflow: visible; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-property: opacity, background-color, color, border-color !important; }
  .voce[open] { animation: dissolvi 200ms ease; }
  .carta:active .foto, .aree button:active, .filtri button:active { transform: none; }
  @media (hover: hover) { .carta:hover .foto img { transform: none; } }
}
@keyframes dissolvi { from { opacity: 0; } }
.marca { white-space: nowrap; }
@media (max-width: 600px) {
  .meta { font-size: 12px; }
  .filtri { flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; padding-bottom: 4px; margin-right: 0; }
  .filtri::-webkit-scrollbar { display: none; }
  .filtri button { flex: none; }
}