/* =========================================================
   Nova Buttons — Tokens / Components / Utilities
   - No ID selectors
   - No !important
   - Token-based responsive sizing (uses nova-ui tokens)
   ========================================================= */

/* ===== Base Button (shared with Pagination) ===== */
.nova-btn,
.pagination .page-link {
  /* Sizing tokens (defaults map to control sizes) */
  --btn-h: var(--control-h-md);
  --btn-px: 12px;
  --btn-fs: 0.9rem;
  --btn-gap: 6px;
  --btn-minw: auto;
  --btn-radius: 12px;

  border: none;
  border-radius: var(--btn-radius);
  background: var(--gradient-accent);
  background-size: 200% 200%;
  background-position: 0% 50%;
  color: #fff;
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--btn-gap);
  cursor: pointer;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
  font-weight: 500;
  letter-spacing: 0.3px;
  text-decoration: none;
  text-transform: none;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
  box-shadow:
    0 4px 15px rgba(212, 175, 55, 0.4),
    0 2px 4px rgba(0, 0, 0, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.3);
  height: var(--btn-h);
  padding: 0 var(--btn-px);
  min-width: var(--btn-minw);
  font-size: var(--btn-fs);
}

.nova-btn {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Shine and inner highlight */
.nova-btn::before,
.pagination .page-link::before {
  content: '';
  position: absolute;
  inset: 0;
  transform: translateX(-100%);
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
  transition: transform 0.6s ease;
}

.nova-btn::after,
.pagination .page-link::after {
  content: '';
  position: absolute;
  inset: 2px;
  border-radius: calc(var(--btn-radius) - 2px);
  background: linear-gradient(145deg, #F4E4BC, var(--color-gold-2), #CD853F);
  z-index: -1;
  opacity: 0;
  transition: opacity 0.3s ease;
}

/* Hover/active */
.nova-btn:hover,
.pagination .page-link:hover {
  background-position: 100% 50%;
  transform: translateY(-2px);
  box-shadow:
    0 8px 25px rgba(212, 175, 55, 0.6),
    0 4px 8px rgba(0, 0, 0, 0.15),
    0 2px 6px rgba(46, 125, 50, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.4);
  color: #fff;
  text-decoration: none;
}
.nova-btn:hover::before,
.pagination .page-link:hover::before { transform: translateX(100%); }
.nova-btn:hover::after,
.pagination .page-link:hover::after { opacity: 1; }

.nova-btn:active,
.pagination .page-link:active {
  transform: translateY(0) scale(0.98);
  box-shadow:
    0 2px 8px rgba(46, 125, 50, 0.3),
    0 1px 4px rgba(212, 175, 55, 0.2),
    0 1px 2px rgba(0, 0, 0, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

/* Content defaults */
.nova-btn i,
.pagination .page-link i {
  line-height: 1;
  margin: 0;
  font-size: 1.1em;
  flex-shrink: 0;
}
.nova-btn span,
.pagination .page-link span {
  line-height: 1;
  font-weight: 500;
  margin: 0;
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
}

/* ===== Sizes (token mapped) ===== */
.nova-btn-sm { --btn-h: var(--control-h-sm); --btn-px: 8px;  --btn-fs: 0.8rem;  --btn-minw: 100px; }
.nova-btn-md { --btn-h: var(--control-h-md); --btn-px: 12px; --btn-fs: 0.9rem;  --btn-minw: 140px; }
.nova-btn-lg { --btn-h: var(--control-h-lg); --btn-px: 16px; --btn-fs: 1rem;    --btn-minw: 180px; }
.nova-btn-xl { --btn-h: var(--control-h-xl); --btn-px: 18px; --btn-fs: 1.05rem; --btn-minw: 220px; }
.nova-btn-auto { --btn-h: var(--control-h-md); --btn-px: 12px; --btn-fs: 0.9rem;  --btn-minw: auto; }

/* ===== Variants ===== */
.nova-btn--primary { background: var(--gradient-primary); }
.nova-btn--accent  { background: var(--gradient-accent); }
.nova-btn--success { background: var(--gradient-success); }
.nova-btn--dark    { background: var(--gradient-dark); }

/* CTA variant (no IDs) */
.nova-btn--cta { --btn-minw: 160px; width: 100%; }

/* ===== Contexts ===== */

/* Navbar */
.navbar .nova-btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 0 16px; }
.navbar .nova-btn i { font-size: 1.1em; }
@media (max-width: 768px) {
  .navbar .nova-btn.nova-btn-md { width: 44px; height: 44px; padding: 0; border-radius: 50%; min-width: 44px; }
  .navbar .nova-btn span { display: none; }
  .navbar .nova-btn i { font-size: 1.2em; }
}

/* Footer */
footer .nova-btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 0 16px; }
footer .nova-btn i { margin: 0; font-size: 1.1em; }
@media (max-width: 768px) {
  footer .nova-btn-md { width: auto; min-width: 80px; height: 36px; padding: 0 8px; font-size: 0.75rem; gap: 3px; }
  footer .nova-btn span { display: inline; font-size: 0.7rem; line-height: 1; }
  footer .nova-btn i { font-size: 0.9em; }
}

/* Product cards */
.product-card .nova-btn { width: auto; min-width: 180px; max-width: 100%; padding: 0 12px; line-height: 1.2; white-space: normal; word-wrap: break-word; }
@media (max-width: 768px) { .product-card .nova-btn { min-width: 100px; font-size: 0.85rem; padding: 0 8px; height: var(--control-h-md); } }
@media (max-width: 480px) {
  .product-card .nova-btn { min-width: 80px; font-size: 0.8rem; padding: 0 6px; height: auto; min-height: var(--control-h-sm); white-space: normal; word-wrap: break-word; line-height: 1.1; }
}

/* Forms: input group (discount/quantity buttons) */
.input-group .nova-btn { --btn-h: var(--control-h-md); border-radius: 0 12px 12px 0; border-left: none; }
.input-group .form-control { height: var(--control-h-md); border-radius: 12px 0 0 12px; border-right: none; }
.input-group .nova-btn span { display: inline; }

/* Edit profile */
.edit-profile-nav .btn-group { gap: 12px; }
.edit-profile-btn { width: 100%; min-height: var(--control-h-lg); padding: 12px 20px; display: flex; align-items: center; justify-content: center; gap: 8px; }
.edit-profile-btn i { font-size: 1.1em; margin: 0; }
.edit-profile-btn span { font-size: 1rem; font-weight: 500; }
@media (max-width: 480px) {
  .edit-profile-btn { min-height: 44px; padding: 10px 16px; gap: 6px; }
  .edit-profile-btn i { font-size: 1em; }
  .edit-profile-btn span { display: inline; font-size: 0.9rem; }
}

/* Cart */
.cart-quantity-btn { width: 44px; height: 44px; min-width: 44px; padding: 0; border-radius: 50%; display: flex; align-items: center; justify-content: center; }
.nova-btn-sm.cart-quantity-btn { --btn-minw: 0; }
.cart-quantity-btn i { font-size: 1.2em; margin: 0; }
.quantity-value { font-weight: 600; font-size: 1.1rem; color: #333; margin: 8px 0; min-width: 24px; text-align: center; }
.cart-checkout-btn { width: 100%; min-height: var(--control-h-lg); padding: 12px 16px; display: flex; align-items: center; justify-content: center; gap: 8px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
@media (max-width: 768px) {
  .cart-quantity-btn { width: 40px; height: 40px; min-width: 40px; min-height: 40px; }
  .cart-quantity-btn i { font-size: 1.1em; }
  .cart-checkout-btn { font-size: 0.85rem; padding: 10px 12px; min-height: 44px; white-space: normal; word-wrap: break-word; line-height: 1.2; }
}
@media (max-width: 480px) {
  .cart-quantity-btn { width: 36px; height: 36px; min-width: 36px; min-height: 36px; }
  .cart-quantity-btn i { font-size: 1em; }
  .cart-checkout-btn { font-size: 0.8rem; padding: 8px 10px; min-height: 40px; }
}

/* Pagination specifics */
.pagination .page-link { min-width: 44px; height: var(--control-h-md); padding: 8px 16px; margin: 0 4px; border: none; border-radius: 12px; }
.pagination .page-item.active .page-link {
  transform: translateY(0) scale(0.98);
  box-shadow:
    0 2px 8px rgba(212, 175, 55, 0.4),
    0 1px 2px rgba(0, 0, 0, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
}
.pagination .page-item.disabled .page-link { background: #ccc; color: #666; cursor: not-allowed; box-shadow: none; opacity: 0.6; }
.pagination .page-item.disabled .page-link:hover { transform: none; background: #ccc; box-shadow: none; }

/* ===== Responsive size tokens applied ===== */
@media (max-width: 768px) {
  .nova-btn { font-size: 0.85rem; letter-spacing: 0.3px; font-weight: 600; min-height: 44px; touch-action: manipulation; }
  .nova-btn-sm { --btn-h: var(--control-h-sm); --btn-fs: 0.75rem; --btn-px: 6px; --btn-minw: 80px; }
  .nova-btn-md { --btn-h: var(--control-h-md); --btn-fs: 0.85rem; --btn-px: 8px; --btn-minw: 100px; }
  .nova-btn-lg { --btn-h: var(--control-h-lg); --btn-fs: 1rem;   --btn-px: 12px; --btn-minw: 140px; }
  .nova-btn-xl { --btn-h: var(--control-h-xl); --btn-fs: 1.1rem; --btn-px: 16px; --btn-minw: 160px; }
  .nova-btn-auto { --btn-h: var(--control-h-md); --btn-fs: 0.85rem; --btn-px: 12px; --btn-minw: 80px; }
  .nova-btn--cta { --btn-minw: 140px; padding: 10px 12px; gap: 5px; }
}
@media (max-width: 480px) {
  .nova-btn { font-size: 0.8rem; letter-spacing: 0.2px; font-weight: 600; }
  .nova-btn-sm { --btn-h: var(--control-h-sm); --btn-fs: 0.7rem;  --btn-px: 4px; --btn-minw: 70px; }
  .nova-btn-md { --btn-h: var(--control-h-md); --btn-fs: 0.8rem;  --btn-px: 6px; --btn-minw: 85px; }
  .nova-btn-lg { --btn-h: var(--control-h-lg); --btn-fs: 0.9rem;  --btn-px: 10px; --btn-minw: 120px; }
  .nova-btn-xl { --btn-h: var(--control-h-xl); --btn-fs: 1.0rem;  --btn-px: 14px; --btn-minw: 140px; }
  .nova-btn-auto { --btn-h: var(--control-h-md); --btn-fs: 0.8rem; --btn-px: 10px; --btn-minw: 70px; }
  .nova-btn--cta { padding: 8px 10px; }
}