/* ==========================================================================
   MARCO ZULIANI - Fotografo
   Stylesheet Ufficiale Format "Lightbox" (https://lightbox.format.com)
   ========================================================================== */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--bg-color);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  transition: background-color 0.3s ease, color 0.3s ease;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-speed) ease, opacity var(--transition-speed) ease;
}

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

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

/* ==========================================================================
   HEADER FISSO FORMAT LIGHTBOX (#header)
   ========================================================================== */
#header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 100;
  padding: 0 var(--header-padding);
  background-color: var(--header-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--header-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: transform 0.3s ease, background-color 0.3s ease;
}

/* Logo con Serif d'Autore (Big Caslon / Didone) */
.header_logo {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 400;
  letter-spacing: 0.02em;
  color: var(--text-primary);
  white-space: nowrap;
}

.header_logo a {
  color: var(--text-primary);
}

.header_logo a:hover {
  color: var(--accent-gold);
}

/* Navigazione Principale (#menu) */
#menu {
  display: flex;
  align-items: center;
  gap: 32px;
}

.menu_list {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
}

.menu_list .item a {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  padding: 6px 2px;
  position: relative;
}

.menu_list .item a:hover {
  color: var(--accent-gold);
}

.menu_list .item.is_selected a {
  color: var(--text-primary);
  font-weight: 600;
}

.menu_list .item.is_selected a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background-color: var(--accent-gold);
}

/* Controlli Header Destra: Switch Tema, Icone Social & Mobile */
.header_controls {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Selettore Tema Notte/Giorno */
.theme_toggle_btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  border: 1px solid var(--border-subtle);
  padding: 5px 10px;
  border-radius: 20px;
  transition: all 0.2s ease;
}

.theme_toggle_btn:hover {
  border-color: var(--accent-gold);
  color: var(--accent-gold);
}

.theme_toggle_icon {
  width: 13px;
  height: 13px;
  fill: currentColor;
}

/* Icone Social */
.social_icons {
  display: flex;
  align-items: center;
  gap: 12px;
  list-style: none;
}

.social_link {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  opacity: 0.85;
  transition: all 0.2s ease;
}

.social_link:hover {
  color: var(--accent-gold);
  opacity: 1;
  transform: translateY(-1px);
}

.social_icon {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

/* Pulsante Hamburger per Mobile */
.mobile_menu_button {
  display: none;
  background: none;
  border: none;
  width: 36px;
  height: 36px;
  position: relative;
  cursor: pointer;
  color: var(--text-primary);
}

.mobile_menu_button .lines {
  display: block;
  width: 22px;
  height: 2px;
  background-color: currentColor;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  transition: background-color 0.2s ease;
}

.mobile_menu_button .lines::before,
.mobile_menu_button .lines::after {
  content: "";
  display: block;
  width: 22px;
  height: 2px;
  background-color: currentColor;
  position: absolute;
  left: 0;
  transition: transform 0.25s ease;
}

.mobile_menu_button .lines::before {
  top: -6px;
}

.mobile_menu_button .lines::after {
  bottom: -6px;
}

.mobile_menu_button.open .lines {
  background-color: transparent;
}

.mobile_menu_button.open .lines::before {
  transform: translateY(6px) rotate(45deg);
}

.mobile_menu_button.open .lines::after {
  transform: translateY(-6px) rotate(-45deg);
}

/* ==========================================================================
   VISTA 1: RECENT WORK (Scorrimento Verticale a Schermo Pieno di Format)
   ========================================================================== */
#view-recent-work {
  width: 100%;
}

.gallery_scroll_container {
  width: 100%;
  scroll-snap-type: y mandatory;
}

/* Ogni opera occupa l'intero viewport centrandosi verticalmente */
.asset.image {
  min-height: 100vh;
  height: 100vh;
  width: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 85px calc(var(--thumb-width) + 40px) 40px 60px;
  scroll-snap-align: center;
  position: relative;
}

.asset_center {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  max-width: 100%;
  max-height: 100%;
}

.asset_image_container {
  position: relative;
  display: inline-block;
  line-height: 0;
  cursor: pointer;
  max-width: 86vw;
  max-height: 76vh;
}

.asset_image_container img {
  max-height: 76vh;
  max-width: 86vw;
  width: auto;
  height: auto;
  object-fit: contain;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.asset_image_container:hover img {
  opacity: 0.96;
}

/* Didascalie Tipografiche Raffinate */
.asset_caption {
  text-align: center;
  margin-top: 14px;
  max-width: 38em;
  font-family: var(--font-sans);
  color: var(--text-muted);
  font-size: 13px;
  line-height: 1.6;
}

.asset_caption .caption_title {
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--text-primary);
  display: block;
  margin-bottom: 3px;
}

.asset_caption .caption_meta {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--text-caption);
  text-transform: uppercase;
}

/* ==========================================================================
   BARRA LATERALE MINIATURE FISSA A DESTRA (.gallery_thumbs)
   Firma iconica del template Format Lightbox
   ========================================================================== */
.gallery_thumbs {
  position: fixed;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 80;
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 75vh;
  overflow-y: auto;
  padding: 6px;
  list-style: none;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.2) transparent;
}

.gallery_thumbs::-webkit-scrollbar {
  width: 4px;
}

.gallery_thumbs::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.2);
  border-radius: 4px;
}

.gallery_thumb {
  width: var(--thumb-width);
  aspect-ratio: 3 / 2;
  overflow: hidden;
  cursor: pointer;
  opacity: var(--thumb-dim);
  transition: opacity 0.25s ease, outline 0.25s ease;
  background-color: var(--bg-surface);
}

.gallery_thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.gallery_thumb:hover {
  opacity: var(--thumb-hover);
}

.gallery_thumb.is_selected {
  opacity: var(--thumb-active);
  outline: 1.5px solid var(--thumb-outline);
  outline-offset: 3px;
}

/* ==========================================================================
   PULSANTI DI NAVIGAZIONE IN BASSO A SINISTRA (.gallery_navigation)
   ========================================================================== */
.gallery_navigation {
  position: fixed;
  bottom: 28px;
  left: 28px;
  z-index: 85;
  display: flex;
  align-items: center;
  gap: 10px;
}

.gallery_nav_button {
  width: 38px;
  height: 38px;
  border: 1px solid var(--border-subtle);
  border-radius: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 16px;
  transition: all 0.2s ease;
  background: rgba(17, 18, 21, 0.4);
  backdrop-filter: blur(4px);
}

.gallery_nav_button:hover {
  border-color: var(--accent-gold);
  color: var(--accent-gold);
  transform: scale(1.05);
}

/* ==========================================================================
   VISTA 2: GALLERIES (Panoramica delle 3 Serie Autoriali)
   ========================================================================== */
#view-galleries {
  display: none;
  min-height: 100vh;
  padding: 120px var(--header-padding) 80px;
}

.view_header {
  text-align: center;
  margin-bottom: 50px;
}

.view_title {
  font-family: var(--font-serif);
  font-size: 38px;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.view_subtitle {
  font-size: 14px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-caption);
}

.listing_images {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 36px;
}

.listing_image {
  background: var(--card-bg);
  border: 1px solid var(--border-subtle);
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.listing_image:hover {
  transform: translateY(-4px);
  border-color: var(--card-hover-border);
}

.listing_image .image-wrap {
  width: 100%;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  position: relative;
}

.listing_image .image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.listing_image:hover .image-wrap img {
  transform: scale(1.04);
}

.listing_image .asset_caption.is_listing {
  padding: 20px 18px 22px;
  text-align: center;
}

.listing_image .asset_caption.is_listing h3 {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 6px;
  letter-spacing: 0.02em;
}

.listing_image .asset_caption.is_listing p {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-caption);
}

/* ==========================================================================
   VISTA 3: ABOUT (Biografia, Poetica e Mostre)
   ========================================================================== */
#view-about {
  display: none;
  min-height: 100vh;
  padding: 120px var(--header-padding) 80px;
}

.about_container {
  max-width: 1120px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.35fr;
  gap: 60px;
  align-items: start;
}

.about_image_wrapper {
  position: sticky;
  top: 110px;
  border: 1px solid var(--border-subtle);
  overflow: hidden;
}

.about_image_wrapper img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

.about_content {
  color: var(--text-muted);
}

.about_headline {
  font-family: var(--font-serif);
  font-size: 42px;
  font-weight: 400;
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: 24px;
}

.about_body p {
  font-size: 16px;
  line-height: 1.85;
  margin-bottom: 18px;
}

.about_section_title {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 400;
  color: var(--accent-gold);
  margin-top: 36px;
  margin-bottom: 14px;
}

.about_list {
  list-style: none;
}

.about_list li {
  font-size: 14.5px;
  line-height: 1.7;
  padding: 6px 0;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  gap: 16px;
}

.about_list li .year {
  color: var(--accent-gold);
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 13px;
}

/* ==========================================================================
   VISTA 4: CONTACT (Modulo di Contatto & Dati Ufficiali)
   ========================================================================== */
#view-contact {
  display: none;
  min-height: 100vh;
  padding: 120px var(--header-padding) 80px;
}

.contact_container {
  max-width: 760px;
  margin: 0 auto;
}

.contact_headline {
  font-family: var(--font-serif);
  font-size: 42px;
  font-weight: 400;
  color: var(--text-primary);
  text-align: center;
  margin-bottom: 12px;
}

.contact_intro {
  text-align: center;
  color: var(--text-muted);
  font-size: 16px;
  margin-bottom: 30px;
}

/* Box Evidenza Email */
.email_highlight_box {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 24px;
  text-align: center;
  margin-bottom: 40px;
  border-radius: 2px;
}

.email_highlight_box span {
  display: block;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-caption);
  margin-bottom: 6px;
}

.email_highlight_box a {
  font-family: var(--font-serif);
  font-size: 26px;
  color: var(--accent-gold);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.email_highlight_box a:hover {
  color: var(--accent-gold-hover);
}

/* Modulo di Contatto */
.format_contact_form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form_group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form_group label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-caption);
}

.form_group input,
.form_group textarea {
  width: 100%;
  padding: 14px 16px;
  background-color: var(--input-bg);
  border: 1px solid var(--input-border);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 15px;
  outline: none;
  transition: border-color 0.2s ease, background-color 0.2s ease;
  border-radius: 2px;
}

.form_group input:focus,
.form_group textarea:focus {
  border-color: var(--input-focus);
  background-color: var(--bg-surface);
}

.submit_btn {
  align-self: flex-start;
  padding: 14px 36px;
  background-color: var(--text-primary);
  color: var(--bg-color);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  border-radius: 2px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.submit_btn:hover {
  background-color: var(--accent-gold);
  color: #111215;
}

/* ==========================================================================
   MODALE LIGHTBOX A SCHERMO INTERO (Zoom in alta risoluzione)
   ========================================================================== */
.lightbox_modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  background-color: var(--modal-overlay);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.lightbox_modal.is_open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.lightbox_modal_content {
  max-width: 92vw;
  max-height: 90vh;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.lightbox_modal_img {
  max-width: 92vw;
  max-height: 84vh;
  object-fit: contain;
  box-shadow: 0 15px 50px rgba(0, 0, 0, 0.5);
}

.lightbox_modal_caption {
  margin-top: 14px;
  text-align: center;
  color: var(--text-muted);
  font-size: 14px;
}

.lightbox_modal_close {
  position: absolute;
  top: 24px;
  right: 28px;
  color: var(--text-primary);
  font-size: 32px;
  line-height: 1;
  opacity: 0.7;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.lightbox_modal_close:hover {
  opacity: 1;
  color: var(--accent-gold);
  transform: rotate(90deg);
}

/* ==========================================================================
   RESPONSIVE DESIGN (Smartphone & Tablet)
   ========================================================================== */
@media screen and (max-width: 992px) {
  .listing_images {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  .about_container {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .about_image_wrapper {
    position: static;
    max-width: 480px;
    margin: 0 auto;
  }
}

@media screen and (max-width: 768px) {
  #header {
    height: 64px;
  }

  .header_logo {
    font-size: 22px;
  }

  .mobile_menu_button {
    display: block;
  }

  #menu {
    position: fixed;
    top: 64px;
    left: 0;
    width: 100%;
    height: calc(100vh - 64px);
    background-color: var(--bg-color);
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-start;
    padding: 36px 28px;
    gap: 28px;
    transform: translateX(-100%);
    transition: transform 0.3s cubic-bezier(0.2, 0.9, 0.3, 1);
    border-top: 1px solid var(--border-subtle);
  }

  #menu.is_open {
    transform: translateX(0);
  }

  .menu_list {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
    width: 100%;
  }

  .menu_list .item a {
    font-size: 18px;
  }

  .gallery_thumbs {
    display: none;
  }

  .gallery_navigation {
    bottom: 16px;
    left: 16px;
  }

  .asset.image {
    padding: 80px 20px 60px 20px;
    height: auto;
    min-height: 85vh;
  }

  .asset_image_container {
    max-width: 100%;
    max-height: 65vh;
  }

  .asset_image_container img {
    max-width: 100%;
    max-height: 65vh;
  }

  .listing_images {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .about_headline,
  .contact_headline {
    font-size: 32px;
  }
}