/* ==========================================================
   chiaraalbertoni.art — foglio di stile
   Palette ricavata direttamente dai colori dell'opera.
   ========================================================== */

:root {
  --void:    #100c0b;  /* fondo, il nero caldo del dipinto */
  --field:   #191412;  /* pannelli e fasce alternate */
  --edge:    #2e2624;  /* linee sottili */
  --dew:     #ece6e0;  /* testo chiaro, il bianco delle gocce */
  --dew-dim: #9d918a;  /* testo secondario */
  --sepal:   #4c5140;  /* verde smorzato dello stelo */
  --sap:     #9e2226;  /* rosso dei tentacoli — usato con parsimonia */

  --font-display: "Marcellus", Optima, Palatino, Georgia, serif;
  --font-logo: "Bodoni Moda", Didot, "Marcellus", Georgia, serif;
  --font-body: "Karla", Helvetica, Arial, sans-serif;

  --max: 1240px;
  --nav-h: 92px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--void);
  color: var(--dew);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 34px; }
.narrow { max-width: 760px; }

/* ---------- Header ---------- */

.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 34px;
  z-index: 50;
  transition: background .35s ease, border-color .35s ease;
  border-bottom: 1px solid transparent;
}

.site-header.is-solid,
body.has-solid-header .site-header {
  background: rgba(16, 12, 11, .93);
  backdrop-filter: blur(10px);
  border-bottom-color: var(--edge);
}

.logo {
  font-family: var(--font-logo);
  font-weight: 700;
  font-size: clamp(26px, 2.8vw, 39px);
  letter-spacing: .19em;
  line-height: 1;
  text-transform: uppercase;
  white-space: nowrap;
  text-shadow: 0 2px 22px rgba(0,0,0,.7);
}

.main-nav { display: flex; gap: 26px; align-items: center; }

.main-nav a {
  font-size: 12px;
  letter-spacing: .17em;
  text-transform: uppercase;
  color: var(--dew-dim);
  text-shadow: 0 1px 12px rgba(0,0,0,.85), 0 0 3px rgba(0,0,0,.7);
  padding: 4px 0;
  border-bottom: 1px solid transparent;
  transition: color .2s, border-color .2s;
}

body.has-hero .site-header:not(.is-solid) .main-nav a { color: rgba(236,230,224,.92); }
body.has-solid-header .main-nav a { text-shadow: none; }
.site-header.is-solid .main-nav a { text-shadow: none; }
.site-header.is-solid .logo { text-shadow: none; }

.main-nav a:hover { color: var(--dew); }
.main-nav a.is-current { color: var(--dew); border-bottom-color: var(--sap); }

.main-nav a.lang-switch {
  border: 1px solid currentColor;
  border-radius: 2px;
  padding: 4px 9px;
  opacity: .75;
}
.main-nav a.lang-switch:hover { opacity: 1; border-color: var(--dew); }

.nav-toggle {
  display: none;
  background: none; border: none; cursor: pointer;
  color: var(--dew); font-size: 24px; line-height: 1; padding: 4px 0;
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  height: 100svh;
  min-height: 540px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero picture, .hero img.hero-img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
}

.hero img.hero-img { object-fit: cover; object-position: center; }

.hero::after {
  content: "";
  position: absolute; inset: 0;
  pointer-events: none;
  background: linear-gradient(to bottom,
    rgba(12,9,8,.60) 0%,
    rgba(12,9,8,.20) 11%,
    transparent 20%,
    transparent 88%,
    rgba(12,9,8,.55) 100%);
}

.hero-inner {
  position: absolute;
  left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
  text-align: center;
  padding: 0 24px;
  width: min(60vw, 760px);
}

.hero-titolo {
  margin: 0;
  font-family: var(--font-body);
  font-weight: 400;
  font-size: clamp(20px, 2.4vw, 30px);
  letter-spacing: .36em;
  text-transform: uppercase;
  color: var(--dew);
  text-indent: .36em;            /* compensa lo spazio dopo l'ultima lettera */
  text-shadow: 0 2px 16px rgba(0,0,0,.9), 0 0 40px rgba(0,0,0,.6);
  white-space: nowrap;
}

.hero-firma {
  width: 100%; height: auto;
  filter: drop-shadow(0 2px 10px rgba(0,0,0,.85)) drop-shadow(0 0 26px rgba(0,0,0,.5));
}

/* fascia orizzontale sfumata sotto la firma — variante "con-fascia" */
.hero-inner.con-fascia::before {
  content: "";
  position: absolute;
  left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  width: 100vw;
  height: 620%;
  background: linear-gradient(to bottom,
    rgba(8,5,5,0) 0%,
    rgba(8,5,5,.52) 16%,
    rgba(8,5,5,.90) 50%,
    rgba(8,5,5,.52) 84%,
    rgba(8,5,5,0) 100%);
  -webkit-mask-image: linear-gradient(to right,
    rgba(0,0,0,0) 0%, rgba(0,0,0,1) 22%, rgba(0,0,0,1) 78%, rgba(0,0,0,0) 100%);
  mask-image: linear-gradient(to right,
    rgba(0,0,0,0) 0%, rgba(0,0,0,1) 22%, rgba(0,0,0,1) 78%, rgba(0,0,0,0) 100%);
  z-index: -1;
  pointer-events: none;
}

/* alone morbido dietro la firma — variante "con-alone" */
.hero-inner.con-alone::before {
  content: "";
  position: absolute;
  left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  width: 165%; height: 420%;
  background: radial-gradient(ellipse at center,
    rgba(10,7,6,.72) 0%,
    rgba(10,7,6,.55) 38%,
    rgba(10,7,6,.24) 62%,
    rgba(10,7,6,0) 78%);
  z-index: -1;
  pointer-events: none;
}

.hero-name {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(38px, 8.5vw, 92px);
  line-height: 1.02;
  letter-spacing: .04em;
  margin: 0;
  text-transform: uppercase;
  text-shadow: 0 4px 40px rgba(0,0,0,.6);
}

.hero-rule {
  width: 62px; height: 1px; background: var(--sap);
  margin: 26px auto 22px;
}

.hero-tag {
  font-size: 12px;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--dew-dim);
  margin: 0;
  text-shadow: 0 2px 18px rgba(0,0,0,.8);
}

.hero-scroll {
  position: absolute; bottom: 30px; left: 50%; transform: translateX(-50%);
  z-index: 2;
  font-size: 10.5px; letter-spacing: .24em; text-transform: uppercase;
  color: var(--dew);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  text-shadow: 0 1px 14px rgba(0,0,0,.9), 0 0 4px rgba(0,0,0,.8);
}

.hero-scroll::after {
  content: ""; width: 1px; height: 34px;
  background: linear-gradient(to bottom, var(--dew), transparent);
  box-shadow: 0 0 8px rgba(0,0,0,.8);
}

.hero-credit {
  position: absolute; bottom: 22px; right: 28px; z-index: 2;
  font-size: 10.5px; letter-spacing: .1em; color: rgba(236,230,224,.75);
  text-shadow: 0 1px 12px rgba(0,0,0,.9), 0 0 4px rgba(0,0,0,.8);
}

/* ---------- Sezioni ---------- */

.section { padding: 96px 34px; }
.section-alt { background: var(--field); }
.page-top { padding-top: calc(var(--nav-h) + 74px); }

.eyebrow {
  font-size: 11px; letter-spacing: .26em; text-transform: uppercase;
  color: var(--sepal); margin: 0 0 14px;
}

.eyebrow-center { text-align: center; }

h1.page-title, .section-title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(30px, 4.6vw, 50px);
  letter-spacing: .02em;
  margin: 0 0 16px;
}

.section-title-center { text-align: center; }

.lede {
  color: var(--dew-dim);
  font-size: 16.5px;
  max-width: 62ch;
  margin: 0 0 44px;
}

.lede-center { margin-left: auto; margin-right: auto; text-align: center; }

.btn {
  display: inline-block;
  padding: 14px 34px;
  border: 1px solid var(--dew-dim);
  font-size: 11.5px; letter-spacing: .18em; text-transform: uppercase;
  transition: background .25s, color .25s, border-color .25s;
}

.btn:hover { background: var(--dew); border-color: var(--dew); color: var(--void); }

/* ---------- Filtri portfolio ---------- */

.filters { margin-bottom: 40px; }

.filter-row {
  display: flex; justify-content: center; align-items: center;
  gap: 6px; flex-wrap: wrap;
}

.filter-row + .filter-row { margin-top: 14px; }

.tab {
  font-family: var(--font-body);
  background: none;
  border: 1px solid var(--edge);
  color: var(--dew-dim);
  padding: 9px 19px;
  font-size: 11px; letter-spacing: .16em; text-transform: uppercase;
  cursor: pointer;
  transition: all .2s;
}

.tab:hover { color: var(--dew); border-color: var(--dew-dim); }
.tab.is-active { background: var(--dew); border-color: var(--dew); color: var(--void); }

.tab-sub {
  border-color: transparent;
  border-bottom: 1px solid var(--edge);
  padding: 6px 12px;
  font-size: 10.5px;
}

.tab-sub.is-active { background: none; color: var(--sap); border-bottom-color: var(--sap); }

.subfilters { display: none; }
.subfilters.is-visible { display: flex; }

/* interruttore BN / Colore */
.tone-switch {
  display: inline-flex; align-items: center; gap: 0;
  border: 1px solid var(--edge); margin-left: 10px;
}

.tone-switch button {
  font-family: var(--font-body);
  background: none; border: none; cursor: pointer;
  color: var(--dew-dim);
  padding: 9px 16px;
  font-size: 10.5px; letter-spacing: .16em; text-transform: uppercase;
  transition: all .2s;
}

.tone-switch button.is-active { background: var(--sepal); color: var(--dew); }

/* ---------- Griglia opere ---------- */

/* Impaginazione a colonne (masonry): ogni opera conserva le proporzioni
   reali della foto, senza ritagli ne' spazi vuoti forzati. */
.gallery-grid {
  columns: 3;
  column-gap: 30px;
}

.tile {
  margin: 0 0 46px;
  break-inside: avoid;
  -webkit-column-break-inside: avoid;
  display: inline-block;
  width: 100%;
}

.tile-btn {
  display: block; width: 100%; padding: 0;
  border: none; background: var(--field);
  cursor: zoom-in; overflow: hidden; position: relative;
}

.tile-btn img {
  display: block;
  width: 100%; height: auto;
  transition: transform .7s cubic-bezier(.2,.7,.3,1), filter .4s ease;
}

.tile-btn:hover img { transform: scale(1.04); }
.tile-btn:focus-visible { outline: 2px solid var(--sap); outline-offset: 3px; }

.tile figcaption { margin-top: 15px; display: flex; flex-direction: column; gap: 3px; }

.tile-title { font-family: var(--font-display); font-size: 20px; letter-spacing: .02em; }
.tile-meta { font-size: 12px; color: var(--dew-dim); letter-spacing: .04em; }

.tile-tag {
  font-size: 10px; letter-spacing: .18em; text-transform: uppercase;
  color: var(--sepal); margin-top: 2px;
}

.empty-note {
  grid-column: 1 / -1; text-align: center;
  color: var(--dew-dim); font-size: 14px; padding: 50px 0;
}

/* ---------- Gallerie fotografiche statiche (mostre, workshop) ---------- */

.photo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: 40px;
}

.photo-grid figure { margin: 0; }

.photo-grid img {
  display: block;
  width: 100%;
  height: auto;
  background: var(--field);
}

.photo-grid figcaption {
  margin-top: 10px;
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--sepal);
}

.photo-single {
  margin: 40px auto 0;
  max-width: 760px;
}

.photo-single img {
  display: block;
  width: 100%;
  height: auto;
}

.photo-single figcaption {
  margin-top: 12px;
  text-align: center;
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--sepal);
}

@media (max-width: 720px) {
  .photo-grid { grid-template-columns: 1fr 1fr; gap: 14px; }
}

@media (max-width: 480px) {
  .photo-grid { grid-template-columns: 1fr; }
}

/* ---------- Lightbox ---------- */

.lightbox {
  position: fixed; inset: 0; z-index: 100;
  background: rgba(9,7,6,.97);
  display: flex; align-items: center; justify-content: center;
  padding: 60px 40px;
  opacity: 0; pointer-events: none;
  transition: opacity .28s ease;
}

.lightbox.is-open { opacity: 1; pointer-events: auto; }

.lightbox-stage {
  display: grid; grid-template-columns: minmax(0,1fr) 280px;
  gap: 38px; align-items: center;
  max-width: 1300px; width: 100%; max-height: 86vh;
}

.lightbox-figure { overflow: hidden; display: flex; align-items: center; justify-content: center; }

.lightbox-figure img {
  max-height: 82vh; width: auto; margin: 0 auto;
  cursor: zoom-in;
  transition: transform .35s ease;
  box-shadow: 0 30px 90px rgba(0,0,0,.7);
}

.lightbox-figure.is-zoomed img { cursor: zoom-out; transform: scale(2); }

.lightbox-panel { align-self: center; }

.lightbox-title { font-family: var(--font-display); font-size: 27px; margin: 0 0 6px; font-weight: 400; }
.lightbox-meta { font-size: 12.5px; color: var(--dew-dim); letter-spacing: .04em; margin: 0 0 20px; }

.lightbox-tabs { display: flex; gap: 6px; margin-bottom: 14px; }

.lb-tab {
  font-family: var(--font-body); background: none; cursor: pointer;
  border: 1px solid var(--edge); color: var(--dew-dim);
  padding: 7px 14px; font-size: 10px; letter-spacing: .16em; text-transform: uppercase;
  transition: all .2s;
}

.lb-tab.is-active { border-color: var(--sap); color: var(--dew); }

.lb-panel { display: none; font-size: 14px; color: var(--dew-dim); }
.lb-panel.is-active { display: block; }

.lightbox-close {
  position: absolute; top: 22px; right: 30px;
  background: none; border: none; color: var(--dew);
  font-size: 30px; line-height: 1; cursor: pointer; font-family: var(--font-body);
}

.lightbox-nav {
  position: absolute; top: 50%; transform: translateY(-50%);
  background: none; border: none; color: var(--dew-dim);
  font-size: 34px; cursor: pointer; padding: 16px;
  transition: color .2s;
}

.lightbox-nav:hover { color: var(--dew); }
.lightbox-prev { left: 12px; }
.lightbox-next { right: 12px; }

/* ---------- Pagine di testo ---------- */

.bio-layout { display: grid; grid-template-columns: 300px 1fr; gap: 64px; align-items: start; }

.portrait-slot {
  aspect-ratio: 3 / 4; background: var(--field);
  border: 1px solid var(--edge);
  display: flex; align-items: center; justify-content: center;
  color: var(--dew-dim); font-size: 11px; letter-spacing: .16em;
  text-transform: uppercase; text-align: center; padding: 20px;
  overflow: hidden;
}

.portrait-slot img {
  width: 100%; height: 100%; object-fit: cover; padding: 0;
}

.prose p { color: var(--dew-dim); margin: 0 0 20px; }
.prose p.first { color: var(--dew); font-family: var(--font-display); font-size: 20px; line-height: 1.5; }

.placeholder-note {
  display: inline-block; margin-top: 14px;
  font-size: 10.5px; letter-spacing: .14em; text-transform: uppercase;
  color: var(--sap); border: 1px dashed rgba(158,34,38,.5); padding: 7px 13px;
}

/* elenco esposizioni / press */

.entry-list { max-width: 820px; }
/* Voci senza anno (es. rassegna stampa): niente colonna vuota a sinistra. */
.entry-list-flush .entry { grid-template-columns: 1fr; }
.entry-list-flush .entry-year { display: none; }

.entry {
  display: grid; grid-template-columns: 96px 1fr; gap: 26px;
  padding: 26px 0; border-bottom: 1px solid var(--edge);
}

.entry:last-child { border-bottom: none; }

.entry-year { font-family: var(--font-display); font-size: 19px; color: var(--dew-dim); }
.entry-title { font-family: var(--font-display); font-size: 21px; margin: 0 0 5px; font-weight: 400; }
.entry-title a { color: inherit; text-decoration: none; border-bottom: 1px solid transparent; transition: border-color .2s; }
.entry-title a:hover, .entry-title a:focus-visible { border-bottom-color: currentColor; }
.entry-place { font-size: 11px; letter-spacing: .16em; text-transform: uppercase; color: var(--sepal); margin: 0 0 8px; }
.entry-desc { font-size: 14px; color: var(--dew-dim); margin: 0; }

/* testi critici (press) */

.critical-texts { max-width: 760px; margin-top: 12px; }

.critical-text {
  padding: 40px 0; border-bottom: 1px solid var(--edge);
}

.critical-text:last-child { border-bottom: none; }

.critical-text-title { font-family: var(--font-display); font-size: 24px; margin: 0 0 4px; font-weight: 400; }
.critical-text-author {
  font-size: 11px; letter-spacing: .16em; text-transform: uppercase;
  color: var(--sepal); margin: 0 0 22px;
}

.critical-text .prose p { font-size: 15px; }

.critical-text details {
  margin-top: 22px; border-top: 1px solid var(--edge); padding-top: 18px;
}

.critical-text summary {
  cursor: pointer; font-size: 11px; letter-spacing: .16em; text-transform: uppercase;
  color: var(--dew-dim); list-style: none;
}

.critical-text summary::-webkit-details-marker { display: none; }
.critical-text summary::before { content: "+ "; color: var(--sepal); }
.critical-text details[open] summary::before { content: "\2212 "; }

.critical-text details .prose { margin-top: 18px; }

/* workshop / contatti */

.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }

.card { border: 1px solid var(--edge); padding: 30px 26px; background: var(--field); }
.card h3 { font-family: var(--font-display); font-size: 22px; margin: 0 0 10px; font-weight: 400; }
.card p { font-size: 14px; color: var(--dew-dim); margin: 0 0 8px; }
.card a { border-bottom: 1px solid var(--edge); }
.card a:hover { border-bottom-color: var(--sap); }

/* ---------- Contatti e modulo ---------- */

.contatti-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 54px;
  align-items: start;
}

.contatti-lato { display: flex; flex-direction: column; gap: 18px; }

.form { max-width: 620px; }

.campo { margin-bottom: 20px; }

.campo label {
  display: block;
  font-size: 11px; letter-spacing: .18em; text-transform: uppercase;
  color: var(--sepal); margin-bottom: 7px;
}

.campo input, .campo textarea {
  width: 100%;
  background: var(--field);
  border: 1px solid var(--edge);
  color: var(--dew);
  font-family: var(--font-body);
  font-size: 15px;
  padding: 12px 14px;
  transition: border-color .2s, background .2s;
}

.campo input:focus, .campo textarea:focus {
  outline: none;
  border-color: var(--sepal);
  background: #1d1715;
}

.campo textarea { resize: vertical; min-height: 150px; }

.form button.btn {
  cursor: pointer;
  background: none;
  color: var(--dew);
  font-family: var(--font-body);
}

.form-nota { font-size: 12.5px; color: var(--dew-dim); margin: 18px 0 0; }

@media (max-width: 880px) {
  .contatti-layout { grid-template-columns: 1fr; gap: 34px; }
}

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--edge);
  padding: 44px 34px 38px;
  text-align: center;
  color: var(--dew-dim);
  font-size: 11.5px; letter-spacing: .08em;
}

.footer-name { font-family: var(--font-display); font-size: 17px; letter-spacing: .18em; text-transform: uppercase; color: var(--dew); margin-bottom: 16px; }
.socials { display: flex; gap: 20px; justify-content: center; margin-bottom: 18px; }
.socials a { font-size: 10.5px; letter-spacing: .18em; text-transform: uppercase; border-bottom: 1px solid var(--edge); padding-bottom: 3px; }
.socials a:hover { border-bottom-color: var(--sap); }

/* ---------- Responsive ---------- */

@media (max-width: 1000px) {
  .lightbox-stage { grid-template-columns: 1fr; max-height: none; }
  .lightbox { padding: 70px 22px 30px; overflow-y: auto; align-items: flex-start; }
  .lightbox-figure img { max-height: 56vh; }
  .lightbox-panel { text-align: center; }
  .lightbox-tabs { justify-content: center; }
}

@media (max-width: 880px) {
  .gallery-grid { columns: 2; column-gap: 20px; }
  .tile { margin-bottom: 32px; }
  .bio-layout { grid-template-columns: 1fr; gap: 34px; }
  .portrait-slot { max-width: 280px; }
  .card-grid { grid-template-columns: 1fr; }
  .entry { grid-template-columns: 1fr; gap: 6px; }

  .nav-toggle { display: block; }
  .main-nav {
    position: fixed; inset: var(--nav-h) 0 auto 0;
    background: #0d0908;
    flex-direction: column; gap: 0;
    padding: 8px 0 20px;
    border-bottom: 1px solid var(--edge);
    box-shadow: 0 24px 40px rgba(0,0,0,.6);
    display: none;
  }
  .main-nav.is-open { display: flex; }
  .main-nav a { padding: 14px 34px; width: 100%; font-size: 12.5px; border-bottom: none; }
  .main-nav a.is-current { color: var(--sap); }
}

@media (max-width: 560px) {
  .section { padding: 66px 22px; }
  .wrap { padding: 0 22px; }
  .site-header { padding: 0 22px; }
  .logo { font-size: 21px; letter-spacing: .11em; }
  .gallery-grid { columns: 1; }
  .tile { margin-bottom: 28px; }
  .tile-title { font-size: 16px; }
  .hero-tag { font-size: 10.5px; letter-spacing: .22em; }
  .hero-inner { width: min(92vw, 430px); top: 50%; }
  .hero-titolo { font-size: clamp(16px, 4.2vw, 22px); letter-spacing: .28em; white-space: normal; text-indent: 0; }
  .hero-inner.con-fascia::before { height: 700%; }
}

/* ---------- Accessibilità ---------- */

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

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

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}

/* ---------- Intervista (formato domanda/risposta) ---------- */

.intervista p.domanda {
  color: var(--dew);
  font-family: var(--font-display);
  font-size: 18px;
  line-height: 1.5;
  margin: 34px 0 14px;
}

.intervista p.domanda:first-child { margin-top: 0; }
.intervista p.first { font-family: var(--font-body); font-size: 16px; color: var(--dew-dim); }