/* =================================================================
   STUDIO MORETTI — Foglio di stile condiviso
   HTML5 puro, mobile-first, nessun framework esterno.
   ================================================================= */

:root {
  --bg: #f6f4f0;
  --bg-alt: #ece8e1;
  --fg: #17140f;
  --fg-soft: #55504a;
  --line: #d8d2c8;
  --accent: #b5501f;      /* terracotta — filo conduttore del sito */
  --pubblico: #2c4a52;    /* blu petrolio — progetti pubblici */
  --privato: #b5501f;     /* terracotta — progetti privati */
  --mostra: #5c6b3f;      /* verde oliva — mostra / curatela */
  --maxw: 1180px;
  --gap: 1.5rem;
  --radius: 2px;
  font-size: 16px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: "Helvetica Neue", Arial, "Segoe UI", sans-serif;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

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

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

h1, h2, h3, h4 {
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 400;
  line-height: 1.15;
  margin: 0 0 .5em;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.2rem, 6vw, 4rem); }
h2 { font-size: clamp(1.6rem, 4vw, 2.4rem); }
h3 { font-size: clamp(1.2rem, 3vw, 1.5rem); }

p { margin: 0 0 1em; color: var(--fg-soft); max-width: 62ch; }

.eyebrow {
  display: block;
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: .72rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: .6em;
}

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.section {
  padding: clamp(3rem, 7vw, 6rem) 0;
}

.section--alt { background: var(--bg-alt); }

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2.2rem;
  border-bottom: 1px solid var(--line);
  padding-bottom: 1.2rem;
}

.section-head p { margin: 0; }

/* ---------------- HEADER / NAV ---------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(246, 244, 240, 0.98);
  border-bottom: 1px solid var(--line);
  /* su iPhone con Dynamic Island / notch, in un WebView a schermo intero
     (es. AVStudio) il contenuto puo estendersi sotto l'isola. Inizialmente
     usava env(safe-area-inset-top), ma nel WebView di AVStudio quel valore
     risultava troppo alto (l'header scendeva molto piu del necessario,
     verificato dall'utente con foto reali dal dispositivo) - sostituito
     con un valore fisso piccolo, tarato a vista sulle foto: appena
     sufficiente a liberare il logo dall'isola senza spazio eccessivo. */
  padding-top: 14px;
}

.site-header .container {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  height: 64px;
  padding-bottom: 10px; /* allinea logo e voci di menu appena sopra il bordo dell'header */
}

.logo {
  display: flex;
  align-items: flex-end;
  gap: .55em;
  font-family: Georgia, serif;
  font-size: 1.15rem;
  letter-spacing: .02em;
  line-height: 1; /* elimina lo spazio extra sopra/sotto il testo (leading del
                      font), altrimenti "Studio Moretti" resta visivamente
                      più in alto del bordo inferiore dell'icona anche se i
                      due elementi sono allineati "in basso" via flexbox */
}

/* colori abbinati all'icona: "Studio" marroncino, "Moretti" azzurro scuro */
.logo strong { font-weight: 400; color: #cc9966; }
.logo span { color: #0484bf; }

.logo-icon {
  display: block;
  width: 30px;
  height: auto;
  flex-shrink: 0;
}

/* su schermi piccoli (telefoni) riduciamo leggermente icona + scritta,
   cosi la scritta "Studio Moretti" resta piu compatta e piu lontana
   dall'area del Dynamic Island / notch in alto */
@media (max-width: 479px) {
  .logo { font-size: 1rem; gap: .45em; }
  .logo-icon { width: 25px; }
}

.nav-toggle-label {
  display: block;
  cursor: pointer;
  width: 28px;
  height: 20px;
  position: relative;
  z-index: 200;
}

.nav-toggle-label span,
.nav-toggle-label span::before,
.nav-toggle-label span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 28px;
  height: 2px;
  background: var(--fg);
  transition: transform .25s ease, opacity .25s ease, top .25s ease;
}

.nav-toggle-label span { top: 9px; }
.nav-toggle-label span::before { top: -9px; }
.nav-toggle-label span::after { top: 9px; }

#nav-toggle { display: none; }

.main-nav {
  /* position: absolute (ancorato all'header, che è position: sticky) invece di
     position: fixed: alcuni motori WebKit/mobile "perdono" un elemento fixed
     annidato dentro un header sticky (bug noto), lasciando il menu aperto ma
     vuoto. position: absolute rispetto all'header è equivalente a schermo ma
     non soffre di questo problema. */
  position: absolute;
  top: 100%;
  right: 0;
  left: 0;
  height: calc(100vh - 64px - 14px);
  background: var(--bg);
  transform: translateY(-8px);
  opacity: 0;
  visibility: hidden;
  transition: opacity .25s ease, transform .25s ease, visibility 0s .25s;
  overflow-y: auto;
  z-index: 150;
}

.main-nav ul {
  list-style: none;
  margin: 0;
  padding: 2rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.main-nav a {
  display: block;
  padding: 1rem 0;
  font-family: Georgia, serif;
  font-size: 1.6rem;
  border-bottom: 1px solid var(--line);
}

.main-nav .nav-sub {
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: .78rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--fg-soft);
  padding: 1.5rem 0 .5rem;
  border-bottom: none;
}

#nav-toggle:checked ~ .main-nav {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
  transition: opacity .25s ease, transform .25s ease;
}

#nav-toggle:checked ~ .nav-toggle-label span { background: transparent; }
#nav-toggle:checked ~ .nav-toggle-label span::before { top: 0; transform: rotate(45deg); }
#nav-toggle:checked ~ .nav-toggle-label span::after { top: 0; transform: rotate(-45deg); }

@media (min-width: 860px) {
  .nav-toggle-label { display: none; }

  .main-nav {
    position: static;
    top: auto;
    right: auto;
    bottom: auto;
    left: auto;
    height: auto;
    background: none;
    transform: none;
    opacity: 1;
    visibility: visible;
    overflow: visible;
  }

  .main-nav ul {
    flex-direction: row;
    align-items: center;
    padding: 0;
    gap: 2rem;
  }

  .main-nav a {
    padding: 0;
    font-family: "Helvetica Neue", Arial, sans-serif;
    font-size: .85rem;
    letter-spacing: .04em;
    border-bottom: none;
    line-height: 1; /* stesso motivo del logo: allinea il testo delle voci
                        di menu al bordo inferiore dell'header */
  }

  .main-nav a.current { color: var(--accent); }

  .main-nav .nav-sub { display: none; }
}

/* ---------------- BOTTONI ---------------- */

.btn {
  display: inline-block;
  padding: .85em 1.6em;
  border: 1px solid var(--fg);
  font-size: .8rem;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.btn:hover { background: var(--fg); color: var(--bg); }

.btn--accent { border-color: var(--accent); background: var(--accent); color: #fff; }
.btn--accent:hover { background: transparent; color: var(--accent); }

/* ---------------- PLACEHOLDER IMMAGINI (riquadri colorati) ----------------
   Sostituire con <img srcset="..." sizes="..." alt="..."> quando le foto
   reali saranno disponibili. Vedi ISTRUZIONI.txt nella cartella del sito. */

.ph {
  position: relative;
  aspect-ratio: 4 / 3;
  width: 100%;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  color: #fff;
  background: var(--fg-soft);
}

.ph::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0) 45%, rgba(0,0,0,.55) 100%);
}

.ph img {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero .ph img { position: absolute; }

.ph-label {
  position: relative;
  z-index: 1;
  padding: .9rem 1rem;
  font-size: .74rem;
  letter-spacing: .03em;
  line-height: 1.35;
}

.ph-tag {
  position: absolute;
  z-index: 1;
  top: .7rem;
  left: .7rem;
  font-size: .65rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  background: rgba(0,0,0,.35);
  padding: .3em .6em;
}

/* colori di sfondo dei riquadri, per categoria/variante */
.ph--01 { background: #8c6a52; }
.ph--02 { background: #6f7d63; }
.ph--03 { background: #7a8896; }
.ph--04 { background: #a9895e; }
.ph--05 { background: #5f6b6f; }
.ph--06 { background: #94684a; }
.ph--07 { background: #4f5d4a; }
.ph--08 { background: #83766a; }

/* stato: non realizzato / concorso -> retino diagonale */
.ph.is-unbuilt {
  background-image: repeating-linear-gradient(
    45deg, rgba(255,255,255,.16) 0 10px, transparent 10px 20px
  ), linear-gradient(135deg, var(--tone, #7a8896), var(--tone, #7a8896));
}

/* stato: in corso -> puntinato + filigrana */
.ph.is-progress {
  background-image: radial-gradient(rgba(255,255,255,.28) 1px, transparent 1px),
    linear-gradient(135deg, var(--tone, #5f6b6f), var(--tone, #5f6b6f));
  background-size: 12px 12px, cover;
}

.ph.is-progress .ph-watermark {
  position: absolute;
  z-index: 1;
  top: 45%;
  left: -8%;
  width: 116%;
  transform: rotate(-8deg);
  text-align: center;
  font-size: .72rem;
  letter-spacing: .25em;
  text-transform: uppercase;
  color: rgba(255,255,255,.75);
  border-top: 1px solid rgba(255,255,255,.45);
  border-bottom: 1px solid rgba(255,255,255,.45);
  padding: .4em 0;
}

/* ---------------- STATUS / CATEGORIA BADGE ---------------- */

.badge {
  display: inline-block;
  font-size: .68rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: .3em .65em;
  border: 1px solid currentColor;
}

.badge--pubblico { color: var(--pubblico); }
.badge--privato { color: var(--privato); }
.badge--mostra { color: var(--mostra); }

/* ---------------- HERO ---------------- */

.hero {
  position: relative;
  min-height: 78vh;
  display: flex;
  align-items: flex-end;
}

.hero .ph {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  aspect-ratio: auto;
  z-index: -1;
}

.hero-content {
  position: relative;
  padding: 2.5rem 1.25rem 3.5rem;
  color: #fff;
  max-width: var(--maxw);
  margin: 0 auto;
  width: 100%;
}

.hero-content h1 { color: #fff; margin-bottom: .3em; }
.hero-content .eyebrow { color: #f0d9c9; }
.hero-content p { color: rgba(255,255,255,.85); }

/* variante "disegno": sfondo chiaro, disegno di progetto a tutta larghezza
   ancorato in basso, testo scuro sovrapposto in alto — nessuno scrim scuro */
.hero--drawing {
  background: var(--bg);
  min-height: auto;
  display: block;
  padding-top: clamp(2.5rem, 6vw, 4.5rem);
}

.hero--drawing .hero-drawing-img {
  position: static;
  top: auto;
  right: auto;
  bottom: auto;
  left: auto;
  z-index: 0;
  width: 100%;
  aspect-ratio: auto;
  background: var(--bg);
}

.hero--drawing .hero-drawing-img::after { content: none; }

.hero--drawing .hero-drawing-img img {
  position: static;
  width: 100%;
  height: auto;
  object-fit: contain;
}

.hero--drawing .hero-content {
  position: static;
  color: var(--fg);
  padding: 0 1.25rem clamp(2rem, 5vw, 3rem);
}

.hero--drawing .hero-content h1,
.hero--drawing .hero-content p { color: var(--fg); }
.hero--drawing .hero-content .eyebrow { color: var(--accent); }
.hero--drawing .hero-content p { color: var(--fg-soft); }

/* ---------------- GRIGLIA CARD (in evidenza / progetti) ---------------- */

.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
}

@media (min-width: 640px) {
  .grid--2 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 900px) {
  .grid--3 { grid-template-columns: repeat(3, 1fr); }
  .grid--4 { grid-template-columns: repeat(4, 1fr); }
}

.card {
  display: block;
}

.card-meta {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: .5rem;
  margin-top: .8rem;
}

.card-meta h3 { margin: 0; font-size: 1.05rem; }

.card-meta .luogo {
  font-size: .8rem;
  color: var(--fg-soft);
  margin-top: .2em;
}

.card-year {
  font-size: .78rem;
  color: var(--fg-soft);
  white-space: nowrap;
}

/* ---------------- SERVIZI ---------------- */

.servizi-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px solid var(--line);
}

.servizio {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem 2rem;
  padding: 1.6rem 0;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
}

.servizio .num {
  font-family: Georgia, serif;
  color: var(--accent);
  font-size: 1rem;
  width: 2.5em;
  flex-shrink: 0;
}

.servizio h3 { margin: 0; flex: 1 1 200px; }
.servizio p { margin: 0; flex: 2 1 280px; }

/* ---------------- FILTRI (pagina progetti) ---------------- */

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  margin-bottom: 2.2rem;
}

.filters fieldset {
  border: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}

.filters legend {
  font-size: .68rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--fg-soft);
  padding: 0 0 .4em;
  width: 100%;
}

.filter-btn {
  font-size: .78rem;
  letter-spacing: .03em;
  padding: .5em 1em;
  border: 1px solid var(--line);
  background: transparent;
  cursor: pointer;
  color: var(--fg-soft);
  font-family: inherit;
}

.filter-btn.active {
  border-color: var(--fg);
  color: var(--fg);
  background: var(--bg-alt);
}

.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem 2.5rem;
  padding-bottom: 1.6rem;
  margin-bottom: 1.6rem;
  border-bottom: 1px solid var(--line);
}

/* ---------------- SCHEDA PROGETTO ---------------- */

.progetto-head {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-bottom: 2.5rem;
}

@media (min-width: 860px) {
  .progetto-head { grid-template-columns: 1.1fr .9fr; align-items: start; }
}

.progetto-info dl {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: .5em 1.2em;
  font-size: .88rem;
  margin: 1.4em 0;
}

.progetto-info dt {
  color: var(--fg-soft);
  text-transform: uppercase;
  font-size: .7rem;
  letter-spacing: .06em;
  padding-top: .15em;
}

.progetto-info dd { margin: 0; }

.gallery {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
  margin: 2.5rem 0;
}

@media (min-width: 700px) {
  .gallery--2 { grid-template-columns: 1fr 1fr; }
  .gallery--3 { grid-template-columns: repeat(2, 1fr); }
  .gallery--4 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 900px) {
  .gallery--3 { grid-template-columns: repeat(3, 1fr); }
  .gallery--4 { grid-template-columns: repeat(4, 1fr); }
}

.gallery figcaption {
  font-size: .78rem;
  color: var(--fg-soft);
  margin-top: .5em;
}

/* una singola immagine della gallery occupa tutta la larghezza
   (utile per tavole/panoramiche molto larghe) */
.full-width { grid-column: 1 / -1; }

/* ---------------- PAGINE PROGETTO SINGOLO: immagini a formato libero ----------------
   Su body.progetto-singolo le immagini (hero + gallery) abbandonano la gabbia
   4:3 di .ph e mantengono la proporzione naturale del file, senza tagli né
   deformazioni. Riguarda SOLO le pagine progetto-*.html: homepage, progetti.html,
   design.html, mostra.html e studio.html continuano a usare .ph com'era. */
body.progetto-singolo .ph {
  position: static;
  aspect-ratio: auto;
  width: 100%;
  overflow: visible;
  display: block;
  background: none;
  color: inherit;
}

body.progetto-singolo .ph::after {
  content: none;
}

body.progetto-singolo .ph img {
  position: static;
  z-index: auto;
  width: 100%;
  height: auto;
  object-fit: contain;
  display: block;
}

/* ---------------- MOSTRA ---------------- */

.split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}

@media (min-width: 860px) {
  .split { grid-template-columns: 1fr 1fr; }
  .split--reverse { direction: rtl; }
  .split--reverse > * { direction: ltr; }
}

/* ---------------- FOOTER ---------------- */

.site-footer {
  border-top: 1px solid var(--line);
  padding: 2.5rem 0;
  background: var(--bg-alt);
}

.footer-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1.5rem;
}

.footer-grid h4 {
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: .72rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--fg-soft);
  margin-bottom: .8em;
}

.footer-grid p, .footer-grid a { font-size: .88rem; }
.footer-grid a { text-decoration: underline; text-underline-offset: 3px; }

.footer-bottom {
  margin-top: 2rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--line);
  font-size: .75rem;
  color: var(--fg-soft);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: .5rem;
}

/* ---------------- UTILITY ---------------- */

.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.hide-mobile { display: none; }
@media (min-width: 860px) { .hide-mobile { display: initial; } }

.intro-lead {
  max-width: 46ch;
}

.intro-lead p { font-size: 1.15rem; color: var(--fg); }

/* ---------------- AREA ARCHIVIO (privato/) ---------------- */

.badge--archivio { color: #9a5a2b; }

.archivio-banner {
  background: #fdf1e4;
  border: 1px solid #e9c9a3;
  color: #7a4620;
  font-size: .82rem;
  padding: .8em 1.2em;
  margin-bottom: 1.5rem;
}

body.privato-locked > *:not(#privato-gate) { display: none !important; }

#privato-gate {
  position: fixed;
  inset: 0;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 500;
  padding: 1.5rem;
}

.privato-gate-box {
  max-width: 360px;
  width: 100%;
  text-align: left;
}

.privato-gate-box h2 { margin: .3em 0 .6em; }

#privato-gate-form {
  display: flex;
  gap: .6em;
  margin-top: 1.2em;
}

#privato-gate-input {
  flex: 1;
  padding: .7em .9em;
  border: 1px solid var(--line);
  font-size: 1rem;
  background: var(--bg);
  color: var(--fg);
}

.privato-gate-error {
  color: #b3432b;
  font-size: .82rem;
  margin-top: .8em;
}