/* ==========================================================================
   UNIQUEART — HEADER, NAV, FOOTER, WHATSAPP FLUTUANTE
   ========================================================================== */

/* --- Header --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(253, 251, 250, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-4);
}

.site-header__logo img {
  display: block;
}

/* --- Navegação desktop --- */
.site-nav {
  display: flex;
  gap: var(--space-8);
}

.site-nav a {
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--color-black);
  position: relative;
  padding-block: var(--space-1);
}

.site-nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 1.5px;
  background-color: var(--color-gold);
  transition: width var(--transition-fast);
}

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

/* --- Ações (carrinho + hamburger) --- */
.site-header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.cart-icon {
  position: relative;
  display: flex;
  color: var(--color-black);
}

.cart-icon__count {
  position: absolute;
  top: -8px;
  right: -10px;
  background-color: var(--color-gold);
  color: var(--color-black);
  font-size: 10px;
  font-weight: 700;
  width: 17px;
  height: 17px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* --- Hamburger (mobile) --- */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 28px;
  height: 22px;
  background: none;
  border: none;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  height: 2px;
  background-color: var(--color-black);
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.menu-toggle--active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle--active span:nth-child(2) { opacity: 0; }
.menu-toggle--active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* --- Responsivo --- */
@media (max-width: 860px) {
  .site-nav {
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    background-color: var(--color-bg);
    flex-direction: column;
    gap: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base);
    border-bottom: 1px solid var(--color-border);
  }

  .site-nav a {
    padding: var(--space-4) var(--space-6);
    border-bottom: 1px solid var(--color-border);
  }

  .site-nav--open {
    max-height: 400px;
  }

  .menu-toggle {
    display: flex;
  }
}

/* --- Footer --- */
.site-footer {
  background-color: var(--color-black);
  color: var(--color-text-inverse);
  padding-top: var(--space-16);
}

.site-footer__inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: var(--space-8);
  padding-bottom: var(--space-12);
}

.site-footer h4 {
  color: var(--color-text-inverse);
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-4);
}

.site-footer a,
.site-footer p {
  display: block;
  color: rgba(253, 251, 250, 0.7);
  font-size: var(--text-sm);
  margin-bottom: var(--space-2);
  transition: color var(--transition-fast);
}

.site-footer a:hover {
  color: var(--color-gold-light);
}

.site-footer__bottom {
  border-top: 1px solid rgba(253, 251, 250, 0.12);
  text-align: center;
  padding-block: var(--space-6);
}

.site-footer__bottom p {
  color: rgba(253, 251, 250, 0.5);
}

@media (max-width: 760px) {
  .site-footer__inner {
    grid-template-columns: 1fr 1fr;
  }
}

/* --- Botão WhatsApp flutuante --- */
.whatsapp-float {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  background-color: #25D366;
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  z-index: 200;
  transition: transform var(--transition-fast);
}

.whatsapp-float:hover {
  transform: scale(1.08);
}