/* ============================================================
   DESIGN SYSTEM — Gruppo Santa Rita
   Palette estratta dal logo ufficiale
   ============================================================ */

:root {
  --rosso:    #c0392b;
  --oro:      #c8a84b;
  --arancione:#e67e22;
  --crema:    #f9f9f7;
  --sabbia:   #e8dcc8;
  --nero:     #111111;
  --bianco:   #ffffff;
  --testo:    #444444;
  --radius:   6px;
  --transition: 0.3s ease;
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', sans-serif;
  font-size: 15px;
  line-height: 1.75;
  color: var(--testo);
  background: var(--bianco);
  padding-top: 64px;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* Tipografia */
h1 {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 400;
  color: var(--nero);
  line-height: 1.2;
}
h2 {
  font-family: 'Inter', sans-serif;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  color: var(--nero);
  line-height: 1.2;
}
h3 {
  font-family: 'Inter', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--nero);
  line-height: 1.2;
}

/* Label sezione */
.section-label {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--rosso);
  margin-bottom: 8px;
}

/* Bottone CTA */
.btn {
  display: inline-block;
  padding: 10px 22px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  border-radius: var(--radius);
  cursor: pointer;
  transition: opacity var(--transition);
  border: none;
}
.btn:hover { opacity: 0.85; }
.btn-oro  { background: var(--oro);   color: var(--bianco); }
.btn-rosso{ background: var(--rosso); color: var(--bianco); }

/* Container */
.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Separatore */
.divider {
  width: 40px;
  height: 2px;
  background: var(--rosso);
  margin: 16px 0;
}

/* Sezioni alternate crema/bianco */
.bg-crema  { background: var(--crema); }
.bg-bianco { background: var(--bianco); }
.bg-nero   { background: var(--nero); }

/* Padding sezioni */
section { padding: 80px 0; }

/* Fade-in animation */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Immagine placeholder (sostituita quando cliente fornisce foto) */
.img-placeholder {
  background: var(--sabbia);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 300px;
  color: #999;
  font-size: 0.8rem;
  letter-spacing: 1px;
}

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: var(--nero);
  box-shadow: none;
  transition: background var(--transition), box-shadow var(--transition), backdrop-filter var(--transition);
}
.navbar.scrolled {
  background: rgba(17, 17, 17, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 2px 12px rgba(0,0,0,0.3);
}
.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.navbar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.logo-img {
  height: 36px;
  width: auto;
}
.logo-fallback {
  font-family: 'Inter', sans-serif;
  font-size: 0.8rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--bianco);
  font-weight: 700;
  display: none;
}

.navbar-menu {
  display: flex;
  gap: 28px;
}
.nav-link {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.85);
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: color var(--transition), border-color var(--transition);
}
.nav-link:hover,
.nav-link.active {
  color: var(--oro);
  border-bottom-color: var(--oro);
}

/* Hamburger — visibile solo su mobile */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--bianco);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: calc(100vh - 64px);
  display: flex;
  align-items: center;
  background-image: url('images/gsr_header.jpeg');
  background-size: cover;
  background-position: center;
  background-color: var(--nero);
  padding: 80px 0;
}
.hero-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}
.hero-content {
  max-width: 560px;
  background: rgba(17, 17, 17, 0.72);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  padding: 40px;
  border-radius: 8px;
}
.hero-content h1 { color: var(--bianco); margin: 10px 0 0; }
.hero-content h1 strong { font-weight: 700; }
.hero-lead {
  color: rgba(255,255,255,0.72);
  font-size: 1rem;
  line-height: 1.8;
  margin-top: 16px;
}
.hero-lead strong { color: rgba(255,255,255,0.9); }

/* Tre fiamme decorative */
.hero-flames {
  display: flex;
  gap: 10px;
  align-items: flex-end;
  height: 180px;
  opacity: 0.3;
  flex-shrink: 0;
}
.flame {
  width: 20px;
  border-radius: 4px 4px 10px 10px;
}
.flame-red    { height: 140px; background: linear-gradient(to top, #8b0000, var(--rosso)); }
.flame-gold   { height: 180px; background: linear-gradient(to top, #c07a10, var(--oro)); }
.flame-orange { height: 110px; background: linear-gradient(to top, #a04010, var(--arancione)); }

/* ============================================================
   STRUTTURA
   ============================================================ */
.struttura-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}
.aziende-cards { display: flex; flex-direction: column; gap: 16px; }
.azienda-card {
  background: var(--bianco);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  transition: box-shadow var(--transition);
}
.azienda-card:hover { box-shadow: 0 4px 16px rgba(0,0,0,0.1); }
.azienda-card-bar { width: 4px; flex-shrink: 0; }
.azienda-card-body { padding: 18px 20px; flex: 1; }
.azienda-card-body p { font-size: 0.88rem; margin: 6px 0 10px; color: var(--testo); }
.azienda-link {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 1px;
  color: var(--rosso);
  text-transform: uppercase;
}
.azienda-link:hover { text-decoration: underline; }

/* ============================================================
   ETICA
   ============================================================ */
.etica-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  margin-bottom: 64px;
}
.etica-intro-text p { margin-top: 16px; }
.etica-intro-img .img-placeholder { min-height: 280px; border-radius: 6px; }

/* Carousel */
.etica-carousel-wrapper { position: relative; }
.etica-carousel {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.etica-card {
  background: var(--bianco);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 2px 12px rgba(0,0,0,0.08);
  transition: box-shadow var(--transition);
}
.etica-card:not(.hidden):hover {
  box-shadow: 0 4px 20px rgba(0,0,0,0.12);
}
.etica-card.hidden { display: none; }
.etica-card-bar { height: 4px; }
.etica-card-body { padding: 24px; flex: 1; }
.etica-num {
  display: block;
  font-family: 'Inter', sans-serif;
  font-style: normal;
  font-weight: 800;
  font-size: 1.6rem;
  color: var(--oro);
  margin-bottom: 8px;
}
.etica-card h3 { font-size: 0.95rem; margin-bottom: 10px; }
.etica-card p  { font-size: 0.875rem; color: var(--testo); }

/* Controlli carousel */
.carousel-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 32px;
}
.carousel-btn {
  background: none;
  border: 1px solid var(--sabbia);
  border-radius: 50%;
  width: 36px; height: 36px;
  font-size: 1rem;
  cursor: pointer;
  color: var(--rosso);
  transition: background var(--transition), color var(--transition);
}
.carousel-btn:hover { background: var(--rosso); color: var(--bianco); border-color: var(--rosso); }
.carousel-dots { display: flex; gap: 8px; }
.carousel-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--sabbia);
  cursor: pointer;
  border: none;
  transition: background var(--transition);
}
.carousel-dot.active { background: var(--rosso); }

/* ============================================================
   SEZIONI AZIENDE (GSR, Red Bill, Parc) — layout comune
   ============================================================ */
.company-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}
.company-media { position: relative; }
.company-photo { min-height: 400px; border-radius: 6px; width: 100%; object-fit: cover; display: block; }
.company-logo-overlay {
  position: absolute;
  bottom: -16px;
  right: -16px;
  z-index: 2;
  background: var(--bianco);
  border-radius: var(--radius);
  padding: 10px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.12);
}
.company-logo { max-height: 70px; width: auto; }

/* Accordion */
.accordion { margin-top: 24px; border: 1px solid var(--sabbia); border-radius: var(--radius); overflow: hidden; }
.accordion-item { border-bottom: 1px solid var(--sabbia); }
.accordion-item:last-child { border-bottom: none; }

.accordion-header {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 18px;
  background: var(--bianco);
  border: none;
  cursor: pointer;
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--nero);
  text-align: left;
  transition: background var(--transition);
}
.accordion-header:hover { background: var(--crema); }
.accordion-header[aria-expanded="true"] { background: var(--crema); }
.accordion-header[aria-expanded="true"] .accordion-icon { transform: rotate(45deg); color: var(--rosso); }

.accordion-icon {
  font-size: 1.2rem;
  color: var(--oro);
  transition: transform var(--transition), color var(--transition);
  flex-shrink: 0;
  margin-left: 12px;
}

.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}
.accordion-body p {
  padding: 16px 18px;
  font-size: 0.875rem;
  color: var(--testo);
  line-height: 1.8;
}

/* ============================================================
   CONTATTI
   ============================================================ */
.contatti-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 64px;
  align-items: start;
}

/* Form */
.form-group { margin-bottom: 14px; }
.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius);
  color: var(--bianco);
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  transition: border-color var(--transition);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: rgba(255,255,255,0.4); }
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--oro);
}
.form-group textarea { resize: vertical; min-height: 120px; }

.form-feedback { margin-top: 16px; font-size: 0.875rem; padding: 12px 16px; border-radius: var(--radius); }
.form-success { background: rgba(80,160,80,0.2); color: #90e090; border: 1px solid rgba(80,160,80,0.3); }
.form-error   { background: rgba(200,60,60,0.2);  color: #f08080; border: 1px solid rgba(200,60,60,0.3); }

/* Info box */
.contatti-info {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 6px;
  padding: 32px;
  margin-top: 8px;
}
.contatti-address { font-style: normal; margin-top: 20px; display: flex; flex-direction: column; gap: 20px; }
.contatti-row { display: flex; gap: 14px; align-items: flex-start; color: rgba(255,255,255,0.75); font-size: 0.9rem; line-height: 1.6; }
.contatti-row a { color: rgba(255,255,255,0.75); }
.contatti-row a:hover { color: var(--oro); }
.contatti-icon { font-size: 1.1rem; flex-shrink: 0; margin-top: 2px; }

/* ============================================================
   FOOTER
   ============================================================ */
footer { background: var(--nero); }

.footer-logos { padding: 48px 0; border-bottom: 1px solid rgba(255,255,255,0.08); }
.footer-logos-inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  align-items: center;
  justify-items: center;
}
.footer-logo-item img {
  max-height: 60px;
  width: auto;
  opacity: 0.85;
  transition: opacity var(--transition);
}
.footer-logo-item:hover img { opacity: 1; }

.footer-icon {
  height: 28px;
  width: auto;
  filter: brightness(0) invert(1);
  opacity: 0.6;
}

.footer-sub { padding: 20px 0; }
.footer-sub-inner {
  display: flex;
  align-items: center;
  gap: 16px;
  color: rgba(255,255,255,0.3);
  font-size: 0.8rem;
}
.footer-flames { display: flex; gap: 4px; align-items: flex-end; }
.footer-flame {
  display: inline-block;
  width: 5px;
  border-radius: 2px 2px 0 0;
  opacity: 0.5;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

/* Tablet — max 1024px */
@media (max-width: 1024px) {
  .struttura-grid  { grid-template-columns: 1fr; gap: 40px; }
  .etica-intro     { grid-template-columns: 1fr; gap: 32px; }
  .etica-carousel  { grid-template-columns: repeat(2, 1fr); }
  .company-grid    { grid-template-columns: 1fr; gap: 40px; }
  .contatti-grid   { grid-template-columns: 1fr; gap: 40px; }
  .footer-logos-inner { grid-template-columns: repeat(2, 1fr); gap: 24px; }
}

/* Mobile — max 768px */
@media (max-width: 768px) {
  section { padding: 56px 0; }
  h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }

  /* Navbar hamburger */
  .hamburger { display: flex; }
  .navbar-menu {
    position: fixed;
    top: 64px; left: 0; right: 0; bottom: 0;
    background: var(--nero);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 32px;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    z-index: 999;
  }
  .navbar-menu.open { transform: translateX(0); }
  .nav-link { font-size: 1rem; letter-spacing: 3px; }

  /* Hero */
  .hero { min-height: 80vh; }
  .hero-inner { flex-direction: column; }
  .hero-flames { display: none; }

  /* Etica carousel: 1 card per volta */
  .etica-carousel { grid-template-columns: 1fr; }
  .etica-intro-img { display: none; }

  /* Company sections */
  .company-media { order: -1; }
  .company-logo-overlay { position: static; margin-bottom: 16px; }

  /* Contatti */
  .contatti-info { margin-top: 0; }

  /* Footer */
  .footer-logos-inner { grid-template-columns: repeat(2, 1fr); }
  .footer-sub-inner { flex-direction: column; gap: 8px; text-align: center; }
}

/* Mobile piccolo — max 480px */
@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .footer-logos-inner { grid-template-columns: 1fr 1fr; }
}