/* Newsletter slide-up styles */
.newsletter-popup {
  position: fixed;
  left: 50%;
  transform: translateX(-50%) translateY(110%);
  bottom: 20px;
  width: 90%;
  max-width: 480px;
  background: var(--background-color);
  border: 1px solid var(--text-color);
  border-radius: 0;
  box-shadow: 0 10px 30px rgba(0,0,0,0.15);
  padding: 1.5rem;
  transition: transform 300ms ease, opacity 300ms ease;
  opacity: 0;
  z-index: 1000;
}
.newsletter-popup.visible { transform: translateX(-50%) translateY(0); opacity: 1; }
.newsletter-popup .close { 
  position: absolute; 
  right: 12px; 
  top: 12px; 
  cursor: pointer; 
  background: none; 
  border: none; 
  font-size: 1.4rem; 
  color: var(--text-color);
  line-height: 1;
  padding: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.newsletter-popup .close:hover { opacity: 0.7; }
.newsletter-popup h4 { margin-top: 0; font-size: var(--text-md); font-weight: normal; }
.newsletter-popup p { font-size: var(--text-sm); margin-bottom: 1rem; }
.newsletter-popup form { display:flex; gap:0.7rem; align-items:stretch; flex-wrap: wrap; }
.newsletter-popup input[type="email"] { 
  flex:1; 
  padding:0.6rem; 
  border:1px solid var(--text-color); 
  border-radius:0; 
  font-size: var(--text-sm);
  background: var(--background-color);
  color: var(--text-color);
  font-family: inherit;
  min-width: 200px;
}
.newsletter-popup button { 
  padding:0.6rem 1rem; 
  background: var(--text-color);
  color: var(--background-color);
  border: 1px solid var(--text-color);
  border-radius:0;
  cursor: pointer;
  font-size: var(--text-sm);
  font-family: inherit;
  transition: background 200ms, color 200ms;
}
.newsletter-popup button:hover {
  background: var(--background-color);
  color: var(--text-color);
}
.newsletter-popup .result {
  margin-top: 0.5rem;
  font-size: var(--text-sm);
}