/* ==========================================================================
   Thomas Cesaretti — Portfolio fotografico
   Design system a due toni (inchiostro su carta calda), tutto in peso 800,
   animazioni 3D a rotazione di riga con easing "firma".
   Impostazione ispirata a gregorcollienne.com, implementazione originale.
   HTML/CSS/JS vanilla, nessun framework.
   ========================================================================== */

:root {
    --ink:       #0c0c0c;
    --bg:        #f5f3f0;
    /* 0.62 su #f5f3f0 ≈ 5.3:1 — sopra la soglia AA 4.5:1 per testo piccolo */
    --muted:     rgba(12, 12, 12, 0.62);
    --hairline:  rgba(12, 12, 12, 0.14);
    --velo:      rgba(12, 12, 12, 0.05);
    --bg-rgb:    245, 243, 240;

    /* Easing e durate firma del design */
    --cubic:     cubic-bezier(0.77, 0, 0.175, 1);
    --cubic-2:   cubic-bezier(0.5, 0, 0.5, 1);
    --dur:       0.79s;
    --dur-2:     0.49s;

    /* Scala tipografica */
    --fs-h1:     clamp(36px, 5.5vw, 82px);
    --fs-h3:     clamp(21px, 3.4vw, 44px);
    --fs-h4:     clamp(19px, 3.2vw, 32px);
    --fs-h5:     clamp(18px, 2vw, 21px);
    --fs-medium: clamp(15px, 1.2vw, 16px);
    --fs-small:  clamp(13px, 1vw, 15px);
    --fs-mini:   clamp(12px, 1vw, 13px);

    --bar-h:     84px;
    --max-w:     1440px;
    --gutter:    clamp(1.25rem, 3vw, 2.5rem);
    --font:      'Archivo', 'Helvetica Neue', Helvetica, Arial, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

/* Tema scuro (grigio): si attiva cliccando il nome al centro della home
   e vale su tutto il sito. I colori derivati seguono automaticamente. */
html.tema-scuro {
    --ink:      #f0efec;
    --bg:       #2b2b29;
    --muted:    rgba(240, 239, 236, 0.62);
    --hairline: rgba(240, 239, 236, 0.16);
    --velo:     rgba(240, 239, 236, 0.07);
    --bg-rgb:   43, 43, 41;
}

body {
    font-family: var(--font);
    font-weight: 800;
    background: var(--bg);
    color: var(--ink);
    font-size: var(--fs-medium);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    padding-top: var(--bar-h);
    padding-bottom: calc(var(--bar-h) + 1rem);
    transition: background-color var(--dur-2) var(--cubic-2), color var(--dur-2) var(--cubic-2);
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

a:focus-visible,
button:focus-visible {
    outline: 2px solid var(--ink);
    outline-offset: 3px;
}

.wrap {
    max-width: var(--max-w);
    margin: 0 auto;
    padding-left: var(--gutter);
    padding-right: var(--gutter);
}

/* ---------------------------------------------------------------- righe 3D
   Le righe di testo entrano ruotando sull'asse X con sfocatura,
   sfalsate riga per riga (indice --i impostato da JS). */

/* Il testo resta nascosto finché JS non lo ha diviso in righe,
   così non appare e riappare. Senza JS resta semplicemente visibile. */
html.js [data-lines]:not(.lines) { opacity: 0; }

.lines { perspective: 1000px; }

.lines .line { display: block; }

.lines .line-inner {
    display: block;
    transform-style: preserve-3d;
    transform-origin: center center;
    backface-visibility: hidden;
    transform: translateY(50%) rotateX(-40deg);
    opacity: 0;
    filter: blur(10px);
    transition:
        transform var(--dur) var(--cubic),
        opacity var(--dur) var(--cubic),
        filter var(--dur) var(--cubic);
    transition-delay: calc(var(--i, 0) * 0.08s);
}

body.has-finished .lines .line-inner {
    transform: none;
    opacity: 1;
    filter: none;
}

/* ----------------------------------------------------------------- topbar
   Solo il "+" centrato in alto: ruotando di 45° diventa la X di chiusura. */

.topbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 120;
    height: var(--bar-h);
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
}

.navopener {
    pointer-events: auto;
    position: relative;
    width: 44px;
    height: 44px;
    transition: transform var(--dur) var(--cubic);
}

.navopener span {
    position: absolute;
    left: 50%;
    top: 50%;
    background: var(--ink);
}

.navopener span:first-child {
    width: 30px;
    height: 3px;
    transform: translate(-50%, -50%);
}

.navopener span:last-child {
    width: 3px;
    height: 30px;
    transform: translate(-50%, -50%);
}

body.nav-open .navopener { transform: rotate(45deg); }

/* -------------------------------------------------------------- navscreen */

.navscreen {
    position: fixed;
    inset: 0;
    z-index: 110;
    background: var(--bg);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: calc(var(--bar-h) + 0.5rem) var(--gutter) 1.5rem;
    overflow-y: auto;
    visibility: hidden;
    opacity: 0;
    transition: opacity var(--dur-2) var(--cubic-2), visibility 0s var(--dur-2);
}

/* Tre fasce come nel riferimento: voci in alto, biografia sotto,
   riga di servizio in fondo. I margin auto distribuiscono lo spazio. */
.navscreen nav { margin-top: auto; }
.navscreen__bio { margin-top: auto; }
.navscreen__footer { margin-top: auto; }

body.nav-open .navscreen {
    visibility: visible;
    opacity: 1;
    transition: opacity var(--dur-2) var(--cubic-2);
}

body.nav-open { overflow: hidden; }

.navscreen__menu { perspective: 1000px; }

.navscreen__menu a {
    display: block;
    font-size: var(--fs-h1);
    line-height: 1.1;
    letter-spacing: -0.01em;
    text-transform: uppercase;
}

.navscreen__menu a .line-inner {
    display: block;
    transform-style: preserve-3d;
    transform-origin: center center;
    backface-visibility: hidden;
    transform: translateY(50%) rotateX(-40deg);
    opacity: 0;
    transition: transform var(--dur) var(--cubic), opacity var(--dur) var(--cubic);
}

body.nav-open .navscreen__menu a .line-inner {
    transform: none;
    opacity: 1;
}

body.nav-open .navscreen__menu li:nth-child(1) a .line-inner { transition-delay: 0.10s; }
body.nav-open .navscreen__menu li:nth-child(2) a .line-inner { transition-delay: 0.16s; }
body.nav-open .navscreen__menu li:nth-child(3) a .line-inner { transition-delay: 0.22s; }
body.nav-open .navscreen__menu li:nth-child(4) a .line-inner { transition-delay: 0.28s; }

body.nav-closing .navscreen__menu a .line-inner {
    transform: translateY(-30%) rotateX(40deg);
    opacity: 0;
    transition-delay: 0s !important;
}

.navscreen__menu { list-style: none; }

.navscreen__menu a[aria-current] .line-inner { color: var(--muted); }

.navscreen__menu a:hover .line-inner { color: var(--muted); }

/* Biografia sintetica: maiuscola, grande, centrata. */
.navscreen__bio {
    text-transform: uppercase;
    font-size: clamp(15px, 2.1vw, 30px);
    line-height: 1.35;
    letter-spacing: 0.01em;
    max-width: min(94vw, 1360px);
    opacity: 0;
    transform: translateY(12px);
    transition: opacity var(--dur) var(--cubic), transform var(--dur) var(--cubic);
    transition-delay: 0.28s;
}

body.nav-open .navscreen__bio { opacity: 1; transform: none; }
body.nav-closing .navscreen__bio { opacity: 0; transition-delay: 0s; }

/* Riga di servizio in fondo: contatto a sinistra, copyright al centro,
   social a destra. */
.navscreen__footer {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    opacity: 0;
    transform: translateY(12px);
    transition: opacity var(--dur) var(--cubic), transform var(--dur) var(--cubic);
    transition-delay: 0.36s;
}

body.nav-open .navscreen__footer { opacity: 1; transform: none; }
body.nav-closing .navscreen__footer { opacity: 0; transition-delay: 0s; }

.navscreen__contatto,
.navscreen__social {
    font-size: var(--fs-h4);
    text-transform: uppercase;
    letter-spacing: -0.01em;
    transition: opacity var(--dur-2) var(--cubic-2);
}

.navscreen__contatto { display: inline-flex; align-items: center; }

.navscreen__contatto svg {
    display: block;
    width: clamp(26px, 2.6vw, 34px);
    height: auto;
}

.navscreen__contatto:hover,
.navscreen__social:hover { opacity: 0.6; }

.navscreen__copy {
    font-size: var(--fs-mini);
    color: var(--muted);
}

@media (max-width: 640px) {
    .navscreen__footer { flex-wrap: wrap; justify-content: space-between; }
    .navscreen__copy { width: 100%; order: 3; text-align: center; margin-top: 0.5rem; }
}

/* ------------------------------------------------------ nome fisso (home)
   Il nome dell'artista resta fermo al centro dello schermo mentre le
   immagini del collage gli scorrono sopra. */

.nome-fisso {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 5;
    width: min(94vw, 1280px);
    text-align: center;
    font-size: clamp(34px, 6vw, 96px);
    line-height: 0.95;
    letter-spacing: -0.01em;
    text-transform: uppercase;
    white-space: nowrap;
    pointer-events: none;
}

/* Il nome è anche l'interruttore del tema chiaro/scuro. */
.nome-fisso__btn {
    pointer-events: auto;
    font: inherit;
    text-transform: inherit;
    letter-spacing: inherit;
    line-height: inherit;
    color: inherit;
    cursor: pointer;
    transition: opacity var(--dur-2) var(--cubic-2);
}

.nome-fisso__btn:hover { opacity: 0.7; }

@media (max-width: 640px) {
    /* Due righe (THOMAS / CESARETTI): il nome resta nella fascia
       centrale, lontano dalle colonne ai bordi. */
    .nome-fisso {
        white-space: normal;
        font-size: clamp(24px, 8.5vw, 38px);
        line-height: 1.05;
        width: min(94vw, 10ch);
    }
}

/* --------------------------------------------------------- collage (home)
   Cinque colonne verticali come nel riferimento: due a filo dei bordi
   (a, e — la prima immagine è tagliata dal bordo alto), due intermedie
   (b, d) e una centrale che parte sotto il nome (c). Le immagini
   scorrono sopra il nome fisso (z-index). */

.collage {
    position: relative;
    z-index: 10;
    display: flex;
    justify-content: space-between;
    /* Annulla il padding-top del body: le colonne ai bordi partono
       attaccate al bordo superiore dello schermo. */
    margin-top: calc(var(--bar-h) * -1);
    padding-bottom: 16vh;
    /* I contenitori sono trasparenti ai click: solo le opere sono
       cliccabili, così il nome al centro resta raggiungibile. */
    pointer-events: none;
}

.collage .tile { pointer-events: auto; }

/* Formato unico 4:5 nel collage: nessuna immagine più grande delle altre. */
.collage .tile img {
    aspect-ratio: 4 / 5;
    object-fit: cover;
}

/* Preload: le card partono ammucchiate al centro (trasformazione inline
   impostata dal JS) già visibili, sopra il nome. */
.collage .tile.volo {
    position: relative;
    z-index: 20;
    opacity: 1;
    filter: none;
    transition: none;
}

.collage .colonna {
    display: flex;
    flex-direction: column;
}

/* Colonne tutte della stessa larghezza: le immagini hanno lo stesso
   formato, come nel riferimento. Le due colonne ai bordi (a, e) partono
   attaccate al bordo superiore; le altre più in basso. */
.colonna-a { width: 14vw; gap: 17vh; margin-top: -4vh; }
.colonna-b { width: 14vw; gap: 24vh; margin-top: 12vh; }
.colonna-c { width: 14vw; gap: 24vh; margin-top: 84vh; }
.colonna-d { width: 14vw; gap: 24vh; margin-top: 10vh; }
.colonna-e { width: 14vw; gap: 17vh; margin-top: -4vh; }

@media (max-width: 900px) {
    /* Come il riferimento mobile: immagini piccole, colonne che si
       sovrappongono in orizzontale (margini negativi) alternandosi in
       verticale. Il passo verticale è identico per tutte le colonne
       (calc: 52vh = altezza immagine + distanza), così le fasi non
       derivano mai e le immagini non si accavallano. */
    /* Fasi verticali tutte diverse: nessuna coppia di immagini
       appare mai alla stessa altezza. */
    .colonna-a { width: 22vw; gap: calc(52vh - 27.5vw); margin-top: -4vh; }
    .colonna-b { width: 28vw; gap: calc(52vh - 35vw);   margin-top: 15vh; margin-left: -5vw; margin-right: -2vw; }
    .colonna-c { width: 28vw; gap: calc(52vh - 35vw);   margin-top: 92vh; margin-left: -7vw; margin-right: -7vw; }
    .colonna-d { width: 28vw; gap: calc(52vh - 35vw);   margin-top: 12vh; margin-left: -2vw; margin-right: -5vw; }
    .colonna-e { width: 22vw; gap: calc(52vh - 27.5vw); margin-top: 38vh; }

    /* Scarti orizzontali alternati dentro le colonne: il collage
       perde la regolarità a griglia. Le colonne di bordo si spostano
       solo verso l'interno, per non creare scroll orizzontale. */
    .colonna-a .tile:nth-child(odd)   { margin-left: 4vw; }
    .colonna-b .tile:nth-child(3n)    { margin-left: -4vw; }
    .colonna-b .tile:nth-child(3n+2)  { margin-left: 5vw; }
    .colonna-c .tile:nth-child(odd)   { margin-left: -6vw; }
    .colonna-c .tile:nth-child(3n)    { margin-left: 6vw; }
    .colonna-d .tile:nth-child(3n)    { margin-left: 6vw; }
    .colonna-d .tile:nth-child(3n+2)  { margin-left: -5vw; }
    .colonna-e .tile:nth-child(even)  { margin-left: -4vw; }

    /* Sul telefono il collage è pulito, senza didascalie (come il
       riferimento); titoli e anni restano nella pagina Opere. */
    .collage .tile figcaption { display: none; }
}

/* --------------------------------------------------------------- masonry */

.masonry {
    columns: 3;
    column-gap: 1.2rem;
    padding-bottom: clamp(2rem, 5vw, 4rem);
}

.masonry .tile {
    break-inside: avoid;
    margin-bottom: 1.2rem;
}

.tile { display: block; }

.tile .tile__media {
    position: relative;
    display: block;
    overflow: hidden;
    background: var(--velo);
}

.tile img {
    width: 100%;
    height: auto;
    transition: transform var(--dur) var(--cubic);
}

.tile:hover img { transform: scale(1.04); }

/* Didascalia piccola e sempre visibile sotto l'immagine. */
.tile figcaption {
    display: flex;
    justify-content: space-between;
    gap: 0.75rem;
    padding-top: 0.45rem;
    font-size: var(--fs-mini);
    color: var(--muted);
    transition: opacity var(--dur-2) var(--cubic-2);
}

/* Durante pila e volo del preload la didascalia resta nascosta:
   compare quando la carta è atterrata nella sua posizione. */
.collage .tile.volo figcaption { opacity: 0; }

.tile figcaption .titolo { color: var(--ink); }

/* Reveal delle tile in scroll: rapido, con sfalsamento minimo. */
.reveal {
    opacity: 0;
    transform: translateY(18px);
    filter: blur(8px);
    transition:
        opacity var(--dur-2) var(--cubic),
        transform var(--dur-2) var(--cubic),
        filter var(--dur-2) var(--cubic);
    transition-delay: calc(var(--d, 0) * 0.03s);
}

body.has-finished .reveal.is-visible {
    opacity: 1;
    transform: none;
    filter: none;
}

/* Ri-animazione al cambio vista: con .pre le tile ripartono da nascoste.
   La specificità (0,4,0) deve battere "body.has-finished .reveal.is-visible". */
.masonry.pre .tile.reveal.is-visible,
.masonry.pre .tile { opacity: 0; transform: translateY(24px); filter: blur(12px); transition: none; }

/* ------------------------------------------------------- titoli di pagina */

.page-head {
    padding-top: clamp(2.5rem, 6vw, 5rem);
    padding-bottom: clamp(1.5rem, 4vw, 3rem);
}

.page-head h1 {
    font-size: var(--fs-h1);
    line-height: 1.08;
    letter-spacing: -0.01em;
}

.page-head p {
    margin-top: 1.5rem;
    max-width: 52ch;
    color: var(--muted);
}

html.js .page-head p {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity var(--dur) var(--cubic) 0.25s, transform var(--dur) var(--cubic) 0.25s;
}

body.has-finished .page-head p { opacity: 1; transform: none; }

.page-head .conteggio {
    display: inline-block;
    margin-top: 1rem;
    font-size: var(--fs-mini);
    color: var(--muted);
}

html.js .page-head .conteggio {
    opacity: 0;
    transition: opacity var(--dur) var(--cubic) 0.4s;
}

body.has-finished .page-head .conteggio { opacity: 1; }

.page-head a { border-bottom: 2px solid var(--hairline); transition: border-color var(--dur-2) var(--cubic-2); }
.page-head a:hover { border-color: var(--ink); }

/* -------------------------------------------------------- vista a lista */

.works-list {
    list-style: none;
    border-top: 1px solid var(--hairline);
    padding-bottom: clamp(2rem, 5vw, 4rem);
    perspective: 1000px;
}

.works-list li { border-bottom: 1px solid var(--hairline); }

.works-list a {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 1.5rem;
    padding: clamp(0.8rem, 1.6vw, 1.3rem) 0;
}

.works-list .titolo {
    font-size: var(--fs-h3);
    line-height: 1.1;
    letter-spacing: -0.01em;
    transition: color var(--dur-2) var(--cubic-2), transform var(--dur-2) var(--cubic-2);
}

.works-list a:hover .titolo {
    color: var(--muted);
    transform: translateX(8px);
}

.works-list .meta {
    color: var(--muted);
    font-size: var(--fs-mini);
    white-space: nowrap;
    font-variant-numeric: tabular-nums;
}

/* Miniatura accanto al titolo: solo su mobile (su desktop c'è
   l'anteprima che segue il mouse). */
.works-list__thumb { display: none; }

@media (max-width: 900px) {
    .works-list a {
        display: grid;
        grid-template-columns: 60px 1fr;
        grid-template-rows: auto auto;
        column-gap: 1rem;
        align-items: center;
    }

    .works-list__thumb {
        display: block;
        grid-row: 1 / 3;
        width: 60px;
        height: 75px;
        object-fit: cover;
    }

    .works-list .titolo { grid-column: 2; align-self: end; }

    .works-list .meta {
        grid-column: 2;
        white-space: normal;
        justify-self: start;
        align-self: start;
        margin-top: 0.35rem;
    }
}

/* Titoli che entrano ruotando quando si passa alla vista lista */
.works-list .titolo {
    display: inline-block;
    transform-style: preserve-3d;
    transform-origin: center center;
    backface-visibility: hidden;
}

.works-list.pre .titolo {
    transform: translateY(50%) rotateX(-70deg);
    opacity: 0;
    transition: none;
}

.works-list:not(.pre) .titolo {
    transition:
        transform var(--dur) var(--cubic),
        opacity var(--dur) var(--cubic),
        color var(--dur-2) var(--cubic-2);
    transition-delay: calc(var(--i, 0) * 0.05s);
    transform: none;
    opacity: 1;
}

.works-list:not(.pre) a:hover .titolo { transition-delay: 0s; transform: translateX(8px); }

/* Anteprima flottante al passaggio sulla lista: piccola e agganciata
   al puntatore (posizionata dal JS via transform, con una lieve scia). */
.list-preview {
    position: fixed;
    top: 0;
    left: 0;
    width: 13vw;
    max-width: 210px;
    z-index: 90;
    pointer-events: none;
    opacity: 0;
    filter: blur(12px);
    transition: opacity var(--dur-2) var(--cubic), filter var(--dur-2) var(--cubic);
    overflow: hidden;
    will-change: transform;
}

.list-preview.is-visible { opacity: 1; filter: none; }

.list-preview img { width: 100%; height: auto; }

[hidden] { display: none !important; }

/* --------------------------------------------------------- barra inferiore */

.bottombar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 100;
    display: flex;
    justify-content: center;
    align-items: center;
    height: var(--bar-h);
    pointer-events: none;
    background: linear-gradient(to top, rgba(var(--bg-rgb), 0.9), rgba(var(--bg-rgb), 0));
}

html.js .bottombar {
    transition: opacity var(--dur) var(--cubic) 0.2s, transform var(--dur) var(--cubic) 0.2s;
    opacity: 0;
    transform: translateY(12px);
}

body.has-finished .bottombar { opacity: 1; transform: none; }

.bottombar > * { pointer-events: auto; }

.bottombar__copy { font-size: var(--fs-mini); color: var(--muted); }

.view-toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.9rem;
    font-size: var(--fs-h5);
}

.view-toggle .sep { color: var(--muted); }

.view-toggle button {
    color: var(--muted);
    transition: color var(--dur-2) var(--cubic-2);
    padding: 0.2rem 0.1rem;
}

.view-toggle button:hover { color: var(--ink); }

.view-toggle button[aria-pressed="true"] {
    color: var(--ink);
    border-bottom: 3px solid var(--ink);
}

/* ------------------------------------------------------ dettaglio opera */

.opera { padding-top: clamp(1.5rem, 4vw, 3rem); }

.opera__breadcrumb {
    font-size: var(--fs-mini);
    color: var(--muted);
    margin-bottom: clamp(1.5rem, 3vw, 2.5rem);
}

html.js .opera__breadcrumb {
    opacity: 0;
    transition: opacity var(--dur) var(--cubic) 0.3s;
}

body.has-finished .opera__breadcrumb { opacity: 1; }

.opera__breadcrumb a { border-bottom: 2px solid var(--hairline); transition: color var(--dur-2) var(--cubic-2), border-color var(--dur-2) var(--cubic-2); }
.opera__breadcrumb a:hover { color: var(--ink); border-color: var(--ink); }

.opera__stage {
    background: var(--velo);
    padding: clamp(1.5rem, 4vw, 3.5rem);
    display: flex;
    justify-content: center;
}

.opera__stage img {
    max-height: 74vh;
    width: auto;
    max-width: 100%;
    box-shadow: 0 24px 70px rgba(12, 12, 12, 0.22);
}

html.js .opera__stage img {
    opacity: 0;
    filter: blur(12px);
    transform: scale(0.985);
    transition: opacity var(--dur) var(--cubic), filter var(--dur) var(--cubic), transform var(--dur) var(--cubic);
}

body.has-finished .opera__stage img.is-loaded {
    opacity: 1;
    filter: none;
    transform: none;
}

.opera__info {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: clamp(1.5rem, 4vw, 4rem);
    padding-top: clamp(1.75rem, 4vw, 3rem);
}

.opera__info h1 {
    font-size: var(--fs-h3);
    line-height: 1.12;
    letter-spacing: -0.01em;
}

.opera__info .descrizione {
    margin-top: 1rem;
    color: var(--muted);
    max-width: 55ch;
}

html.js .opera__info .descrizione {
    opacity: 0;
    transform: translateY(14px);
    transition: opacity var(--dur) var(--cubic) 0.3s, transform var(--dur) var(--cubic) 0.3s;
}

body.has-finished .opera__info .descrizione { opacity: 1; transform: none; }

.opera__meta {
    list-style: none;
    font-size: var(--fs-small);
    border-top: 1px solid var(--hairline);
    align-self: start;
}

html.js .opera__meta {
    opacity: 0;
    transition: opacity var(--dur) var(--cubic) 0.4s;
}

body.has-finished .opera__meta { opacity: 1; }

.opera__meta li {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.7rem 0;
    border-bottom: 1px solid var(--hairline);
}

.opera__meta .k { color: var(--muted); }

/* La voce "Su richiesta" apre la modale di contatto. */
.opera__meta .richiesta {
    font: inherit;
    color: var(--ink);
    border-bottom: 2px solid var(--ink);
    cursor: pointer;
    transition: opacity var(--dur-2) var(--cubic-2);
}

.opera__meta .richiesta:hover { opacity: 0.65; }

/* ------------------------------------------------------ modale richiesta */

.modale {
    margin: auto;
    width: min(92vw, 460px);
    background: var(--bg);
    color: var(--ink);
    border: 1px solid var(--hairline);
    padding: 0;
}

.modale::backdrop {
    background: rgba(12, 12, 12, 0.55);
}

.modale__inner {
    position: relative;
    padding: clamp(1.5rem, 4vw, 2.5rem);
}

.modale h2 {
    font-size: var(--fs-h5);
    letter-spacing: -0.01em;
    margin-bottom: 0.35rem;
}

.modale__opera {
    font-size: var(--fs-mini);
    color: var(--muted);
    margin-bottom: 1.5rem;
}

.modale__chiudi {
    position: absolute;
    top: 0.7rem;
    right: 0.7rem;
    width: 38px;
    height: 38px;
    font-size: 17px;
    color: var(--muted);
    transition: color var(--dur-2) var(--cubic-2);
}

.modale__chiudi:hover { color: var(--ink); }

.modale__form { display: grid; gap: 1.1rem; }

.modale__form label {
    display: grid;
    gap: 0.35rem;
    font-size: var(--fs-mini);
    color: var(--muted);
}

.modale__form input,
.modale__form textarea {
    font: inherit;
    color: var(--ink);
    background: transparent;
    border: 0;
    border-bottom: 2px solid var(--hairline);
    border-radius: 0;
    padding: 0.4rem 0;
    resize: vertical;
    transition: border-color var(--dur-2) var(--cubic-2);
}

.modale__form input:focus-visible,
.modale__form textarea:focus-visible {
    outline: none;
    border-color: var(--ink);
}

.modale__invia {
    justify-self: start;
    background: var(--ink);
    color: var(--bg);
    padding: 0.75rem 1.7rem;
    font-size: var(--fs-small);
    margin-top: 0.4rem;
    transition: opacity var(--dur-2) var(--cubic-2);
}

.modale__invia:hover { opacity: 0.85; }

.opera__nav {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    margin-top: clamp(2rem, 5vw, 3.5rem);
    padding-top: 1.25rem;
    padding-bottom: clamp(1.5rem, 3vw, 2.5rem);
    border-top: 1px solid var(--hairline);
    font-size: var(--fs-small);
}

.opera__nav a { color: var(--muted); transition: color var(--dur-2) var(--cubic-2); }
.opera__nav a:hover { color: var(--ink); }
.opera__nav .next { text-align: right; }
.opera__nav .label { display: block; font-size: var(--fs-mini); letter-spacing: 0.06em; text-transform: uppercase; }
.opera__nav .titolo { color: var(--ink); font-size: var(--fs-h5); }


/* ------------------------------------------------------------- contatti */

.contatti { padding-bottom: clamp(2rem, 5vw, 4rem); }

.contatti__grid {
    display: grid;
    /* auto-fit: le colonne restano bilanciate a ogni larghezza,
       senza squilibri quando l'email non può spezzarsi */
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.2rem;
    margin-top: clamp(2rem, 5vw, 3.5rem);
}

.contatti__card {
    border: 1px solid var(--hairline);
    padding: 1.75rem;
}

.contatti__card h2 {
    font-size: var(--fs-mini);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 0.75rem;
}

.contatti__card p { font-size: var(--fs-h5); }

.contatti__card a {
    border-bottom: 2px solid var(--hairline);
    transition: border-color var(--dur-2) var(--cubic-2);
}

.contatti__card a:hover { border-color: var(--ink); }

.contatti__note {
    margin-top: 2.5rem;
    font-size: var(--fs-small);
    color: var(--muted);
    max-width: 60ch;
}

html.js .contatti__note {
    opacity: 0;
    transition: opacity var(--dur) var(--cubic) 0.45s;
}

body.has-finished .contatti__note { opacity: 1; }

/* ------------------------------------------------- transizione di pagina */

main {
    transition: opacity var(--dur-2) var(--cubic-2), filter var(--dur-2) var(--cubic-2);
}

body.is-leaving main {
    opacity: 0;
    filter: blur(8px);
}

body.is-leaving .bottombar { opacity: 0; }

/* --------------------------------------------------------- reduced motion */

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }

    [data-lines],
    .lines .line-inner,
    .navscreen__menu a .line-inner,
    .navscreen__bio, .navscreen__footer,
    .page-head p, .page-head .conteggio,
    .reveal, .masonry.pre .tile,
    .works-list .titolo, .works-list.pre .titolo,
    .opera__breadcrumb, .opera__stage img, .opera__info .descrizione, .opera__meta,
    .contatti__note,
    .bottombar, .tile img, main {
        transition: none !important;
        transform: none !important;
        opacity: 1 !important;
        filter: none !important;
    }

    /* Il nome fisso deve restare centrato: si azzera solo l'animazione. */
    .nome-fisso { transform: translate(-50%, -50%) !important; }
}

/* ------------------------------------------------------------ responsive */

@media (max-width: 900px) {
    .masonry { columns: 2; }

    .opera__info { grid-template-columns: 1fr; }

    .list-preview { display: none; }
}

@media (max-width: 640px) {
    :root { --bar-h: 68px; }

    /* Anche sui telefoni la griglia resta a due colonne. */
    .masonry { columns: 2; column-gap: 0.9rem; }
    .masonry .tile { margin-bottom: 0.9rem; }

    /* Su touch le didascalie delle tile restano visibili */
    .tile figcaption { opacity: 1; transform: none; }
}

/* ------------------------------------------------- link nella biografia
   La parola "workshop" nella bio del menu è sottolineata e porta alla
   pagina che spiega come funzionano i workshop. */

.navscreen__bio a {
    border-bottom: 0.09em solid currentColor;
    transition: color var(--dur-2) var(--cubic-2);
}

.navscreen__bio a:hover { color: var(--muted); }

/* --------------------------------------------------------- pagina testo
   Corpo della pagina Workshop: paragrafi larghi al massimo 62ch. */

.testo { padding-bottom: clamp(2rem, 5vw, 4rem); }

.testo p {
    max-width: 62ch;
    color: var(--muted);
}

.testo p + p { margin-top: 1.4rem; }

.testo a {
    color: var(--ink);
    border-bottom: 2px solid var(--hairline);
    transition: border-color var(--dur-2) var(--cubic-2);
}

.testo a:hover { border-color: var(--ink); }

/* Titoletto e lista della pagina Workshop ("Cosa imparerai"). */

.testo h2 {
    font-size: var(--fs-mini);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--muted);
    margin: 2.5rem 0 0.75rem;
}

.testo ul {
    list-style: none;
    max-width: 62ch;
    color: var(--muted);
}

.testo li {
    padding: 0.6rem 0;
    border-bottom: 1px solid var(--hairline);
}

.testo li:first-child { border-top: 1px solid var(--hairline); }

/* Galleria di fotografie dei workshop. */

.galleria {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.2rem;
    padding-bottom: clamp(2rem, 5vw, 4rem);
}

.galleria img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    aspect-ratio: 4 / 5;
    background: var(--velo);
}

@media (max-width: 640px) {
    .galleria { grid-template-columns: repeat(2, 1fr); gap: 0.9rem; }
}

/* Pagina Workshop su desktop: testo a sinistra, "Cosa imparerai" in
   colonna a destra — stessa griglia della scheda opera (1.2fr / 1fr). */

.workshop-info {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: clamp(1.5rem, 4vw, 4rem);
    align-items: start;
}

.workshop-info__impari h2 { margin-top: 0.4rem; }

@media (max-width: 900px) {
    .workshop-info { grid-template-columns: 1fr; }
    .workshop-info__impari h2 { margin-top: 2.5rem; }
}

/* ---------------------------------------------------- modulo contatti
   Stesso linguaggio del form della modale: etichette piccole, campi con
   solo il bordo inferiore, bottone pieno. Invio tramite Web3Forms. */

.form-contatti { margin-top: clamp(2.5rem, 6vw, 4rem); }

.form-contatti h2 {
    font-size: var(--fs-mini);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 1.25rem;
}

.form-contatti__form {
    display: grid;
    gap: 1.1rem;
    max-width: 480px;
}

.form-contatti__form label {
    display: grid;
    gap: 0.35rem;
    font-size: var(--fs-mini);
    color: var(--muted);
}

.form-contatti__form input,
.form-contatti__form textarea {
    font: inherit;
    color: var(--ink);
    background: transparent;
    border: 0;
    border-bottom: 2px solid var(--hairline);
    border-radius: 0;
    padding: 0.4rem 0;
    resize: vertical;
    transition: border-color var(--dur-2) var(--cubic-2);
}

.form-contatti__form input:focus-visible,
.form-contatti__form textarea:focus-visible {
    outline: none;
    border-color: var(--ink);
}

.form-contatti__honeypot {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
}

.form-contatti__invia {
    justify-self: start;
    background: var(--ink);
    color: var(--bg);
    padding: 0.75rem 1.7rem;
    font-size: var(--fs-small);
    margin-top: 0.4rem;
    transition: opacity var(--dur-2) var(--cubic-2);
}

.form-contatti__invia:hover { opacity: 0.85; }
.form-contatti__invia:disabled { opacity: 0.5; cursor: default; }

.form-contatti__esito { font-size: var(--fs-small); color: var(--muted); }

/* Esito dell'invio nella modale "Richiedi ora". */
.modale__esito { font-size: var(--fs-small); color: var(--muted); }