/* ============================================================
   ALTAIR CERAMICHE — app.css
   Palette: toni di grigio caldo + accento "terra" campionato dalla
   cover reale del catalogo Ceramiche 2025/26. Tipografia: Fraunces
   (display, uso in corsivo per eyebrow/didascalie) + Work Sans (UI/testo).
   Elemento firma: .material-tab — la fascia verticale con testo
   ruotato presente su ogni pagina dei cataloghi stampati Altair.
   ============================================================ */

:root {
  --altair-ink:      #2A2724;
  --altair-graphite:  #59544C;
  --altair-stone:     #A7A096;
  --altair-mist:      #E7E3DC;
  --altair-paper:     #F7F5F1;
  --altair-terra:     #8B6F63;
  --altair-terra-dark:#6E574D;
  --altair-white:     #FFFFFF;

  --font-display: 'Fraunces', 'Iowan Old Style', Georgia, serif;
  --font-body: 'Work Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --radius: 2px;
  --header-h: 88px;
  --topbar-h: 40px;

  --bs-body-font-family: var(--font-body);
  --bs-body-color: var(--altair-ink);
  --bs-link-color: var(--altair-terra);
  --bs-link-hover-color: var(--altair-terra-dark);
}

/* ============================================================
   BASE
   ============================================================ */

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}

body {
  background: var(--altair-paper);
  color: var(--altair-ink);
  font-family: var(--font-body);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main { flex: 1 0 auto; }

h1, h2, h3, h4, .display-serif {
  font-family: var(--font-display);
  color: var(--altair-ink);
  font-weight: 600;
  letter-spacing: -0.01em;
}

a { text-decoration: none; }

::selection { background: var(--altair-terra); color: var(--altair-white); }

:focus-visible {
  outline: 2px solid var(--altair-terra);
  outline-offset: 3px;
}

.py-6 { padding-top: 5.5rem; padding-bottom: 5.5rem; }
.pt-6 { padding-top: 5.5rem; }
.pb-6 { padding-bottom: 5.5rem; }
@media (max-width: 767.98px) {
  .py-6 { padding-top: 3.5rem; padding-bottom: 3.5rem; }
  .pt-6 { padding-top: 3.5rem; }
  .pb-6 { padding-bottom: 3.5rem; }
}

.bg-mist { background-color: var(--altair-mist); }
.bg-ink  { background-color: var(--altair-ink); color: var(--altair-paper); }

/* Eyebrow / didascalie in corsivo, richiamo alle scritte "Colori"/"Decori"
   dei cataloghi stampati */
.section-eyebrow {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.15rem;
  color: var(--altair-terra);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}
.section-eyebrow::before {
  content: '';
  width: 34px;
  height: 1px;
  background: currentColor;
  display: inline-block;
}
.section-eyebrow--center { justify-content: center; }
.section-eyebrow--center::before { display: none; }

.section-title { font-size: clamp(1.75rem, 1.4rem + 1.4vw, 2.75rem); }

.text-terra { color: var(--altair-terra); }
.text-stone { color: var(--altair-stone); }

.hairline { border: 0; border-top: 1px solid var(--altair-stone); opacity: 0.4; }

/* ============================================================
   PULSANTI
   ============================================================ */

.btn { border-radius: var(--radius); font-weight: 500; letter-spacing: 0.01em; }

.btn-cta {
  background: var(--altair-ink);
  border: 1px solid var(--altair-ink);
  color: var(--altair-paper);
  padding: 0.75rem 1.75rem;
}
.btn-cta:hover, .btn-cta:focus-visible {
  background: var(--altair-terra);
  border-color: var(--altair-terra);
  color: var(--altair-white);
}
.btn-sm-cta { padding: 0.5rem 1.25rem; font-size: 0.9rem; }

.btn-outline-hero {
  border: 1px solid rgba(255,255,255,0.55);
  color: var(--altair-white);
  padding: 0.75rem 1.75rem;
}
.btn-outline-hero:hover { background: rgba(255,255,255,0.12); color: var(--altair-white); }

.btn-outline-ink {
  border: 1px solid var(--altair-ink);
  color: var(--altair-ink);
  padding: 0.75rem 1.75rem;
  background: transparent;
}
.btn-outline-ink:hover { background: var(--altair-ink); color: var(--altair-paper); }

.link-scopri {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 600;
  color: var(--altair-ink);
  border-bottom: 1px solid var(--altair-stone);
  padding-bottom: 2px;
}
.link-scopri:hover { color: var(--altair-terra); border-color: var(--altair-terra); }

/* ============================================================
   TOPBAR + HEADER
   ============================================================ */

.header-wrap { position: sticky; top: 0; z-index: 1030; }

.topbar {
  background: var(--altair-ink);
  color: var(--altair-mist);
  height: var(--topbar-h);
  font-size: 0.82rem;
  transition: margin-top 0.25s ease;
}
.topbar__inner { height: 100%; display: flex; align-items: center; justify-content: space-between; }
.topbar__phone, .topbar__email { color: var(--altair-mist); display: inline-flex; align-items: center; gap: 0.4rem; }
.topbar__phone:hover, .topbar__email:hover { color: var(--altair-white); }
.topbar__links { display: flex; align-items: center; gap: 1.25rem; }

.btn-lang {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.3);
  color: var(--altair-mist);
  font-size: 0.78rem;
  padding: 0.15rem 0.6rem;
}
.btn-lang:hover, .btn-lang:focus { background: rgba(255,255,255,0.1); color: var(--altair-white); }
.topbar__lang .dropdown-menu { min-width: 4.5rem; font-size: 0.85rem; }

.site-header {
  background: rgba(247,245,241,0.96);
  backdrop-filter: saturate(160%) blur(6px);
  border-bottom: 1px solid rgba(42,39,36,0.08);
}
.site-header .navbar { padding: 0.9rem 0; }

.logo-nav { height: 46px; width: auto; }
.footer-logo { height: 40px; width: auto; filter: brightness(0) invert(1); opacity: 0.92; }

.nav-link {
  color: var(--altair-graphite);
  font-weight: 500;
  font-size: 0.92rem;
  padding: 0.5rem 0.9rem !important;
  position: relative;
}
.nav-link.active, .nav-link:hover { color: var(--altair-ink); }
.nav-link.active::after {
  content: '';
  position: absolute;
  left: 0.9rem; right: 0.9rem; bottom: 0.15rem;
  height: 2px;
  background: var(--altair-terra);
}

.navbar-collapse.show, .navbar-collapse.collapsing {
  background: var(--altair-paper);
  margin-top: 0.75rem;
  padding: 0.5rem 0 1rem;
  border-top: 1px solid rgba(42,39,36,0.08);
}

/* Topbar auto-hide on scroll down (gestito da app.js) */
.topbar--hidden { margin-top: calc(var(--topbar-h) * -1); }

/* ============================================================
   ELEMENTO FIRMA — MATERIAL TAB
   Fascia verticale con testo ruotato, ripresa dai cataloghi stampati.
   ============================================================ */

.material-tab {
  /* width/height:auto sovrascrivono deliberatamente ".ratio > *" di Bootstrap
     (stessa specificità, ma app.css è caricato dopo bootstrap.min.css):
     senza questa regola la tab verticale verrebbe stirata al 100%/100%. */
  position: absolute;
  top: 0; left: 0;
  width: auto; height: auto;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  padding: 1.1rem 0.65rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--altair-paper);
  z-index: 2;
}
.material-tab--ink   { background: var(--altair-ink); }
.material-tab--terra { background: var(--altair-terra); }

/* ============================================================
   HERO HOME
   ============================================================ */

.hero-home {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: flex-end;
  color: var(--altair-white);
  overflow: hidden;
}
.hero-home__bg {
  position: absolute; inset: 0;
  background-size: cover;
  background-position: center;
  transform: scale(1.03);
}
.hero-home__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(20,18,16,0.35) 0%, rgba(20,18,16,0.35) 45%, rgba(20,18,16,0.88) 100%);
}
.hero-home .container { padding-bottom: 4.5rem; padding-top: 8rem; }

.hero-home__badge {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.05rem;
  color: var(--altair-mist);
  margin-bottom: 1rem;
  letter-spacing: 0.02em;
}
.hero-home__title {
  /* h1 riceve color:ink dalla regola globale dei titoli: qui va
     sovrascritto esplicitamente, l'ereditarietà da .hero-home non basta. */
  color: var(--altair-white);
  font-size: clamp(2.25rem, 1.7rem + 2.6vw, 4.1rem);
  line-height: 1.05;
  margin-bottom: 1.25rem;
  max-width: 16ch;
}
.hero-home__lead {
  font-size: 1.1rem;
  max-width: 46ch;
  color: rgba(247,245,241,0.88);
}

/* ============================================================
   PAGE HERO (pagine interne)
   ============================================================ */

.page-hero {
  position: relative;
  min-height: 58vh;
  display: flex;
  align-items: flex-end;
  color: var(--altair-white);
  overflow: hidden;
}
.page-hero--sm { min-height: 38vh; }
.page-hero__bg { position: absolute; inset: 0; background-size: cover; background-position: center; }
.page-hero__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(20,18,16,0.25) 0%, rgba(20,18,16,0.82) 100%);
}
.page-hero .container { padding-bottom: 3.25rem; padding-top: 6rem; }
.page-hero__badge {
  font-family: var(--font-display);
  font-style: italic;
  color: var(--altair-mist);
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
}
.page-hero__title { color: var(--altair-white); font-size: clamp(2rem, 1.6rem + 1.8vw, 3.1rem); margin-bottom: 0.6rem; }
.page-hero__desc { max-width: 52ch; color: rgba(247,245,241,0.88); font-size: 1.05rem; }
.page-hero .material-tab { top: 0; }

/* ============================================================
   CARD CATEGORIA (home)
   ============================================================ */

.categoria-card {
  position: relative;
  display: block;
  border-radius: var(--radius);
  overflow: hidden;
  isolation: isolate;
}
.categoria-card__img {
  position: relative;
  aspect-ratio: 4 / 5;
  overflow: hidden;
}
.categoria-card__img img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.6s ease;
}
.categoria-card:hover .categoria-card__img img { transform: scale(1.06); }
.categoria-card__img::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(20,18,16,0) 40%, rgba(20,18,16,0.86) 100%);
}
.categoria-card__body {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 1.5rem;
  color: var(--altair-white);
  z-index: 1;
}
.categoria-card__titolo { color: var(--altair-white); font-size: 1.4rem; margin-bottom: 0.4rem; }
.categoria-card__testo { font-size: 0.92rem; color: rgba(247,245,241,0.85); margin-bottom: 0.75rem; }
.categoria-card__link { color: var(--altair-white); border-bottom-color: rgba(255,255,255,0.5); }
.categoria-card__link:hover { color: var(--altair-mist); }

/* ============================================================
   COLLEZIONE CARD (pagine categoria)
   ============================================================ */

.collezione-card {
  background: var(--altair-white);
  border: 1px solid rgba(42,39,36,0.1);
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.collezione-card:hover { border-color: var(--altair-terra); transform: translateY(-2px); }
.collezione-card__nome { font-size: 1.2rem; margin-bottom: 0.35rem; }
.collezione-card__tag {
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--altair-terra);
  font-weight: 600;
  margin-bottom: 0.75rem;
}
.collezione-card__testo { color: var(--altair-graphite); font-size: 0.94rem; margin-bottom: 0.75rem; }
.collezione-card__formati { font-size: 0.82rem; color: var(--altair-stone); margin: 0; }
.collezione-card__formati-label {
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
  color: var(--altair-graphite);
  margin-right: 0.4rem;
}

/* ============================================================
   VALORE CARD (sezione "La nostra promessa" in home)
   ============================================================ */

.valore-card {
  background: var(--altair-white);
  border: 1px solid rgba(42,39,36,0.1);
  border-radius: var(--radius);
  padding: 2.25rem 1.75rem;
  text-align: center;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.valore-card:hover { border-color: var(--altair-terra); transform: translateY(-2px); }
.valore-card__icon {
  width: 3.5rem;
  height: 3.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--altair-terra);
  color: var(--altair-white);
  font-size: 1.5rem;
  margin: 0 auto 1.25rem;
}
.valore-card__titolo { font-size: 1.15rem; margin-bottom: 0.5rem; }
.valore-card__testo { color: var(--altair-graphite); font-size: 0.92rem; margin-bottom: 0; }

/* ============================================================
   AMBIENTAZIONI (gallery)
   ============================================================ */

.ambientazione { border-radius: var(--radius); overflow: hidden; }
.ambientazione__img { width: 100%; height: 100%; object-fit: cover; }

/* ============================================================
   CATALOGO DOWNLOAD CARD
   ============================================================ */

.catalogo-card {
  display: flex;
  flex-direction: column;
  background: var(--altair-white);
  border: 1px solid rgba(42,39,36,0.1);
  border-radius: var(--radius);
  overflow: hidden;
}
.catalogo-card__cover { aspect-ratio: 3 / 4; overflow: hidden; background: var(--altair-mist); }
.catalogo-card__cover img { width: 100%; height: 100%; object-fit: cover; }
.catalogo-card__body { padding: 1.5rem; }
.catalogo-card__titolo { font-size: 1.3rem; margin-bottom: 0.2rem; }
.catalogo-card__sub { color: var(--altair-graphite); font-size: 0.9rem; margin-bottom: 1rem; }

/* ============================================================
   PILASTRI / INTRO (home)
   ============================================================ */

.intro-figure { border-radius: var(--radius); overflow: hidden; }
.intro-figure img { width: 100%; height: 100%; object-fit: cover; }

/* ============================================================
   CTA CONTATTI
   ============================================================ */

.cta-contatti-box {
  background: var(--altair-ink);
  border-radius: var(--radius);
  padding: 3rem;
  position: relative;
  overflow: hidden;
}
.cta-contatti-box::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(circle at 85% 20%, rgba(139,111,99,0.35), transparent 60%);
}
.cta-contatti-box > * { position: relative; z-index: 1; }

/* Variante fullwidth (home): stessa identità visiva ma senza container-in-container */
.cta-band {
  background: var(--altair-ink);
  position: relative;
  overflow: hidden;
}
.cta-band::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(circle at 85% 20%, rgba(139,111,99,0.35), transparent 60%);
}
.cta-band > .container { position: relative; z-index: 1; }
.cta-band__title { font-size: clamp(1.75rem, 1.4rem + 1.4vw, 2.75rem); }
.cta-band__testo { font-size: 1.15rem; }
.cta-band .btn-cta {
  background: var(--altair-terra);
  border-color: var(--altair-terra);
}
.cta-band .btn-cta:hover, .cta-band .btn-cta:focus-visible {
  background: var(--altair-white);
  border-color: var(--altair-white);
  color: var(--altair-ink);
}

/* ============================================================
   FORM CONTATTI
   ============================================================ */

.form-box {
  background: var(--altair-white);
  border: 1px solid rgba(42,39,36,0.1);
  border-radius: var(--radius);
  padding: 2rem;
}
.form-label { font-weight: 600; font-size: 0.88rem; color: var(--altair-graphite); }
.form-control, .form-select {
  border-radius: var(--radius);
  border-color: rgba(42,39,36,0.18);
  padding: 0.65rem 0.9rem;
}
.form-control:focus, .form-select:focus {
  border-color: var(--altair-terra);
  box-shadow: 0 0 0 0.2rem rgba(139,111,99,0.18);
}

.contatti-sidebar {
  background: var(--altair-mist);
  border-radius: var(--radius);
  padding: 1.75rem;
}
.contatti-sidebar h3 { font-size: 0.95rem; letter-spacing: 0.04em; }

.map-frame { border: 0; width: 100%; height: 280px; border-radius: var(--radius); filter: grayscale(0.35) contrast(1.05); }

.map-frame-wrapper { position: relative; }
.map-frame-wrapper .map-frame { display: none; }
.map-frame-wrapper.is-loaded .map-frame { display: block; }
.map-frame-wrapper.is-loaded .map-frame-placeholder { display: none; }

.map-frame-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 0.35rem;
  height: 280px;
  padding: 1.5rem;
  background: var(--altair-mist);
  border-radius: var(--radius);
  color: var(--altair-graphite);
}
.map-frame-placeholder p { margin: 0 0 0.5rem; font-size: 0.9rem; max-width: 32ch; }
.map-frame-placeholder .btn { margin-bottom: 0.5rem; }
.map-frame-link { font-size: 0.8rem; text-decoration: underline; color: var(--altair-graphite); }

/* ============================================================
   FOOTER
   ============================================================ */

.site-footer { background: var(--altair-ink); color: rgba(247,245,241,0.78); }
.footer-desc { font-size: 0.9rem; color: rgba(247,245,241,0.7); max-width: 34ch; }
.footer-heading {
  color: var(--altair-white);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  margin-bottom: 1rem;
}
.footer-links { list-style: none; padding: 0; margin: 0; font-size: 0.9rem; }
.footer-links li { margin-bottom: 0.6rem; }
.footer-links a { color: rgba(247,245,241,0.78); }
.footer-links a:hover { color: var(--altair-white); }
.footer-sublabel { display: block; font-size: 0.8rem; color: rgba(247,245,241,0.55); }

.footer-bottom {
  border-top: 1px solid rgba(247,245,241,0.14);
  padding: 1.25rem 0 1.75rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  font-size: 0.82rem;
  color: rgba(247,245,241,0.6);
}
.footer-bottom a { color: rgba(247,245,241,0.6); }
.footer-bottom a:hover { color: var(--altair-white); }

/* ============================================================
   COOKIE BANNER
   ============================================================ */

.cookie-banner {
  position: fixed;
  left: 1rem; right: 1rem; bottom: 1rem;
  z-index: 1080;
  background: var(--altair-ink);
  color: var(--altair-mist);
  border-radius: var(--radius);
  padding: 1.1rem 1.4rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 1.5rem;
  box-shadow: 0 10px 30px rgba(0,0,0,0.25);
  max-width: 760px;
  margin: 0 auto;
}
.cookie-banner p { margin: 0; font-size: 0.85rem; flex: 1 1 320px; }
.cookie-banner a { color: var(--altair-mist); text-decoration: underline; }
.cookie-banner__actions { display: flex; gap: 0.6rem; flex: 0 0 auto; }

/* ============================================================
   CONTENUTO LEGALE (privacy/cookie policy)
   ============================================================ */

.content-wysiwyg h2 { font-size: 1.15rem; }
.content-wysiwyg p { color: var(--altair-graphite); line-height: 1.7; }

/* ============================================================
   404
   ============================================================ */

.page-404 {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}
.page-404__code { font-family: var(--font-display); font-size: clamp(4rem, 3rem + 5vw, 8rem); color: var(--altair-stone); line-height: 1; }

/* ============================================================
   REVEAL ON SCROLL (leggero, disattivato con prefers-reduced-motion)
   ============================================================ */

.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; }
}