/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 2rem;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(255, 255, 255, 0.1);
  transform: translateY(100%);
  transition: var(--transition-fast);
  z-index: -1;
}

.btn:hover::after {
  transform: translateY(0);
}

.btn-primary {
  background-color: var(--color-navy);
  color: var(--color-white-warm);
}

.btn-primary:hover {
  background-color: var(--color-navy-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-medium);
}

.btn-secondary {
  background-color: var(--color-sand);
  color: var(--color-navy);
}

.btn-secondary:hover {
  background-color: var(--color-sand-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-medium);
}

.btn-outline {
  border: 1px solid var(--color-navy);
  color: var(--color-navy);
}

.btn-outline:hover {
  background-color: var(--color-navy);
  color: var(--color-white-warm);
  transform: translateY(-2px);
}

.btn-white {
  background-color: var(--color-white-warm);
  color: var(--color-navy);
}

/*
 * Variante blu marino per il CTA "Richiedi dossier" nell'header.
 * Sfondo pieno mare + testo chiaro, hover leggermente più scuro (notte).
 */
.btn-sea {
  background-color: var(--color-bg-sea);
  color: var(--color-text-on-dark);
  border: 1px solid var(--color-bg-sea);
}
.btn-sea:hover {
  background-color: var(--color-bg-night);
  border-color: var(--color-bg-night);
  color: var(--color-text-on-dark);
  transform: translateY(-2px);
}

.btn-white:hover {
  background-color: var(--color-bg-warm);
  transform: translateY(-2px);
  box-shadow: var(--shadow-medium);
}

/* Header / Navbar */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  transition: var(--transition-smooth);
  padding: 1.5rem 0;
}

header.scrolled {
  background-color: var(--color-white-warm);
  box-shadow: var(--shadow-header);
  padding: 1rem 0;
}

header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--color-white-warm);
  transition: var(--transition-smooth);
}

header.scrolled .logo {
  color: var(--color-navy);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: var(--spacing-md);
}

.nav-link {
  font-size: 0.85rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.8);
  position: relative;
  padding: 0.5rem 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-white-warm);
  transition: var(--transition-fast);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-link:hover {
  color: var(--color-white-warm);
}

header.scrolled .nav-link {
  color: var(--color-text-main);
}

header.scrolled .nav-link::after {
  background-color: var(--color-navy);
}

header.scrolled .nav-link:hover {
  color: var(--color-navy);
}

/* Language Switcher */
.lang-switch {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  color: rgba(255, 255, 255, 0.8);
}

.lang-btn {
  padding: 0.25rem 0.5rem;
  transition: var(--transition-fast);
  opacity: 0.6;
}

.lang-btn.active {
  opacity: 1;
  border-bottom: 2px solid var(--color-white-warm);
  color: var(--color-white-warm);
}

header.scrolled .lang-switch {
  color: var(--color-navy);
}

header.scrolled .lang-btn.active {
  border-bottom: 2px solid var(--color-navy);
  color: var(--color-navy);
}

/* Mobile Header Elements */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  background: transparent;
  border: none;
  cursor: pointer;
  z-index: 101;
}

.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-white-warm);
  transition: var(--transition-smooth);
  transform-origin: left center;
}

header.scrolled .hamburger span {
  background-color: var(--color-navy);
}

/* Premium Card Style */
.card-premium {
  background-color: var(--color-white-warm);
  border-radius: var(--radius-md);
  padding: var(--spacing-md) var(--spacing-md);
  box-shadow: var(--shadow-soft);
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
  border: 1px solid rgba(18, 48, 71, 0.03);
}

.card-premium:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-medium);
  border-color: rgba(216, 195, 165, 0.5); /* Sand border on hover */
}

.card-premium .icon-wrapper {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background-color: rgba(143, 163, 147, 0.15); /* light sage */
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-sm);
  color: var(--color-sage-dark);
}

.card-premium h3 {
  font-size: 1.4rem;
  margin-bottom: 0.5rem;
  color: var(--color-navy);
}

.card-premium p {
  font-size: 0.95rem;
  color: var(--color-text-main);
  opacity: 0.85;
}

/* FAQ Accordion */
.faq-list {
  max-width: var(--container-width-narrow);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background-color: var(--color-white-warm);
  border-radius: var(--radius-md);
  border: 1px solid rgba(18, 48, 71, 0.04);
  overflow: hidden;
  transition: var(--transition-smooth);
}

.faq-item:hover {
  box-shadow: var(--shadow-soft);
  border-color: rgba(216, 195, 165, 0.4);
}

.faq-trigger {
  width: 100%;
  padding: 1.25rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  text-align: left;
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--color-navy);
  background: none;
  border: none;
}

.faq-icon {
  width: 16px;
  height: 16px;
  position: relative;
  flex-shrink: 0;
  transition: var(--transition-smooth);
}

.faq-icon::before, .faq-icon::after {
  content: '';
  position: absolute;
  background-color: var(--color-sage-dark);
  transition: var(--transition-smooth);
}

.faq-icon::before {
  top: 7px;
  left: 0;
  width: 100%;
  height: 2px;
}

.faq-icon::after {
  top: 0;
  left: 7px;
  width: 2px;
  height: 100%;
}

.faq-item.active .faq-icon::after {
  transform: rotate(90deg);
  opacity: 0;
}

.faq-item.active .faq-icon::before {
  transform: rotate(180deg);
}

.faq-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

/*
 * Apertura del pannello quando l'item ha la classe .active
 * (aggiunta da main.js al click). Uso un valore alto per garantire
 * spazio anche a risposte lunghe (3 paragrafi con <br><br>).
 */
.faq-item.active .faq-content {
  max-height: 1500px;
}

.faq-content-inner {
  padding: 0 1.5rem 1.5rem 1.5rem;
  font-size: 0.95rem;
  color: var(--color-text-main);
  opacity: 0.85;
  border-top: 1px solid rgba(18, 48, 71, 0.02);
  padding-top: 1rem;
}

/* Premium Form Elements */
.dossier-form {
  background-color: var(--color-white-warm);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-premium);
  border: 1px solid rgba(18, 48, 71, 0.03);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

@media (max-width: 576px) {
  .form-grid {
    grid-template-columns: 1fr;
  }
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group-full {
  grid-column: span 2;
}

@media (max-width: 576px) {
  .form-group-full {
    grid-column: span 1;
  }
}

.form-label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-navy);
}

.form-input, .form-select {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 1px solid var(--color-tech-gray);
  background-color: var(--color-bg-warm);
  border-radius: var(--radius-sm);
  color: var(--color-text-main);
  font-size: 0.95rem;
  transition: var(--transition-fast);
}

.form-input:focus, .form-select:focus {
  outline: none;
  border-color: var(--color-navy);
  box-shadow: 0 0 0 3px rgba(18, 48, 71, 0.08);
}

.form-checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.85rem;
  color: var(--color-text-main);
  cursor: pointer;
}

.form-checkbox-label input {
  margin-top: 0.2rem;
}

.form-feedback {
  margin-top: 1rem;
  padding: 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  display: none;
}

.form-feedback.success {
  display: block;
  background-color: rgba(143, 163, 147, 0.15);
  color: var(--color-sage-dark);
  border: 1px solid var(--color-sage);
}

.form-feedback.error {
  display: block;
  background-color: rgba(220, 53, 69, 0.1);
  color: #dc3545;
  border: 1px solid rgba(220, 53, 69, 0.2);
}

/* Footer */
footer {
  background-color: var(--color-navy-dark);
  color: var(--color-white-warm);
  padding: var(--spacing-xl) 0 var(--spacing-md) 0;
  font-size: 0.9rem;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.footer-logo {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--color-white-warm);
  margin-bottom: 1rem;
}

.footer-desc {
  opacity: 0.7;
  max-width: 300px;
}

.footer-title {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--color-sand);
  margin-bottom: 1.25rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links a {
  opacity: 0.7;
}

.footer-links a:hover {
  opacity: 1;
  color: var(--color-sand);
  padding-left: 4px;
}

.footer-contacts p {
  margin-bottom: 0.75rem;
  opacity: 0.7;
}

.footer-contacts a:hover {
  color: var(--color-sand);
}

.footer-disclaimer {
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.75rem;
  line-height: 1.5;
  opacity: 0.5;
  margin-bottom: 1.5rem;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  opacity: 0.6;
}

@media (max-width: 768px) {
  .footer-top {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    align-items: flex-start;
  }
}

/* Sticky Mobile CTA */
.mobile-sticky-cta {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: var(--color-white-warm);
  box-shadow: 0 -4px 15px rgba(0, 0, 0, 0.05);
  padding: 0.75rem 1rem;
  z-index: 99;
}

@media (max-width: 768px) {
  .mobile-sticky-cta {
    display: block;
  }
  body {
    padding-bottom: 60px; /* space for sticky bar */
  }
}

/* Responsive Navigation */
@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }
  
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    height: 100vh;
    background-color: var(--color-navy);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-lg);
    transition: var(--transition-smooth);
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.15);
  }
  
  .nav-menu.open {
    right: 0;
  }
  
  .nav-links {
    flex-direction: column;
    align-items: center;
    gap: 2rem;
  }
  
  .nav-link {
    font-size: 1.2rem;
    color: var(--color-white-warm);
  }
  
  .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(6px, -7px);
  }
  
  .hamburger.open span {
    background-color: var(--color-white-warm);
  }
}