/* BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 16px 32px;
  border-radius: var(--rounded-md);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all var(--transition-medium);
  border: none;
}

.btn-primary {
  background-color: var(--primary);
  color: var(--surface);
}

.btn-primary:hover {
  background-color: var(--accent);
  transform: translateY(-2px);
}

.btn-secondary {
  background-color: transparent;
  color: var(--primary);
  border: 1px solid var(--primary);
}

.btn-secondary:hover {
  background-color: var(--primary);
  color: var(--surface);
  transform: translateY(-2px);
}

.btn-link {
  background-color: transparent;
  color: var(--primary);
  padding: 0;
  border-radius: 0;
  border-bottom: 1px solid transparent;
  letter-spacing: 0.08em;
}

.btn-link:hover {
  color: var(--accent);
  border-bottom: 1px solid var(--accent);
}

.btn-icon-round {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--border);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--primary);
  transition: all var(--transition-fast);
}

.btn-icon-round:hover {
  background: var(--primary);
  color: var(--surface);
  border-color: var(--primary);
}

/* HEADER & NAVIGATION */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  transition: background-color var(--transition-medium), border-color var(--transition-medium), padding var(--transition-medium);
  padding: 24px 0;
  background-color: transparent;
  border-bottom: 1px solid transparent;
}

.header.scrolled {
  background-color: var(--secondary);
  border-color: var(--border);
  padding: 16px 0;
}

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

.logo-link img {
  height: 28px;
  width: auto;
  transition: height var(--transition-medium), filter var(--transition-medium);
}

.header.scrolled .logo-link img {
  height: 22px;
}

.nav-menu {
  display: none;
  align-items: center;
  gap: var(--spacing-lg);
  list-style: none;
}

@media (min-width: 1024px) {
  .nav-menu {
    display: flex;
  }
}

.nav-link {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  position: relative;
  padding: 6px 0;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background-color: var(--primary);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-medium);
}

.nav-link:hover::after,
.nav-link.active::after {
  transform: scaleX(1);
  transform-origin: left;
}

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

.nav-action-btn {
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--primary);
  position: relative;
  padding: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color var(--transition-fast);
}

.nav-action-btn:hover {
  color: var(--accent);
}

.badge-count {
  position: absolute;
  top: -6px;
  right: -6px;
  background-color: var(--primary);
  color: var(--surface);
  font-size: 10px;
  font-weight: 700;
  border-radius: 50%;
  width: 16px;
  height: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.mobile-menu-toggle {
  display: flex;
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--primary);
  transition: color var(--transition-fast);
}

@media (min-width: 1024px) {
  .mobile-menu-toggle {
    display: none;
  }
}

/* Home Header Over Dark Hero Carousel */
.header-home:not(.scrolled) .nav-link {
  color: var(--secondary);
}

.header-home:not(.scrolled) .nav-link::after {
  background-color: var(--secondary);
}

.header-home:not(.scrolled) .nav-action-btn,
.header-home:not(.scrolled) .mobile-menu-toggle {
  color: var(--secondary);
}

.header-home:not(.scrolled) .logo-link img {
  filter: brightness(0) invert(1);
}

/* SEARCH BAR OVERLAY */
.search-panel {
  position: fixed;
  top: -100px;
  left: 0;
  width: 100%;
  background-color: var(--secondary);
  border-bottom: 1px solid var(--border);
  z-index: 999;
  padding: 24px 0;
  box-shadow: var(--shadow-soft);
  transition: transform var(--transition-medium);
}

.search-panel.active {
  transform: translateY(100px);
}

.search-container {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  max-width: 800px;
  margin: 0 auto;
}

.search-input {
  flex-grow: 1;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border);
  font-family: var(--font-body);
  font-size: 18px;
  color: var(--text-primary);
  padding: 8px 0;
  outline: none;
  transition: border-color var(--transition-fast);
}

.search-input:focus {
  border-color: var(--primary);
}

.search-close {
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--text-secondary);
}

/* CARDS */
.art-card {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--rounded-lg);
  padding: var(--spacing-md);
  display: flex;

  flex-direction: column;
  transition: transform var(--transition-medium), box-shadow var(--transition-medium);
  position: relative;
  overflow: hidden;
}

.art-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.art-card-image-wrap {
  width: 100%;
  aspect-ratio: 1;
  border-radius: var(--rounded-md);
  overflow: hidden;
  position: relative;
  margin-bottom: var(--spacing-md);
}

.art-card-image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.art-card:hover .art-card-image-wrap img {
  transform: scale(1.05);
}

.art-card-actions {
  position: absolute;
  top: var(--spacing-sm);
  right: var(--spacing-sm);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  opacity: 0;
  transform: translateY(-10px);
  transition: opacity var(--transition-medium), transform var(--transition-medium);
  z-index: 10;
}

.art-card:hover .art-card-actions {
  opacity: 1;
  transform: translateY(0);
}

.art-card-badge {
  position: absolute;
  top: var(--spacing-sm);
  left: var(--spacing-sm);
  background-color: var(--primary);
  color: var(--surface);
  padding: 4px 10px;
  font-size: 11px;
  font-weight: 600;
  border-radius: var(--rounded-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  z-index: 10;
}

.art-card-title {
  font-size: 24px;
  margin-bottom: 6px;
}

.art-card-category {
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 12px;
}

.art-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
}

.art-card-price {
  font-family: var(--font-body);
  font-weight: 600;
  color: var(--primary);
}

/* SLIDE-OUT CART DRAWER */
.cart-drawer-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0,0,0,0.4);
  backdrop-filter: blur(4px);
  z-index: 2000;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-medium);
}

.cart-drawer-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.cart-drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: 100%;
  max-width: 460px;
  height: 100%;
  background-color: var(--background);
  box-shadow: -10px 0 40px rgba(0,0,0,0.1);
  z-index: 2001;
  transform: translateX(100%);
  transition: transform var(--transition-medium);
  display: flex;
  flex-direction: column;
}

.cart-drawer-overlay.active .cart-drawer {
  transform: translateX(0);
}

.cart-header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.cart-title {
  font-size: 28px;
}

.cart-close-btn {
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--text-primary);
  display: flex;
}

.cart-items-container {
  flex-grow: 1;
  overflow-y: auto;
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.cart-empty-message {
  margin: auto;
  text-align: center;
  color: var(--text-secondary);
}

.cart-item {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
  border-bottom: 1px solid var(--border);
  padding-bottom: var(--spacing-md);
}

.cart-item-image {
  width: 80px;
  height: 80px;
  border-radius: var(--rounded-sm);
  overflow: hidden;
  object-fit: cover;
}

.cart-item-details {
  flex-grow: 1;
}

.cart-item-name {
  font-family: var(--font-display);
  font-size: 20px;
  margin-bottom: 4px;
}

.cart-item-price {
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 8px;
}

.cart-item-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.quantity-control {
  display: flex;
  align-items: center;
  border: 1px solid var(--border);
  border-radius: var(--rounded-xs);
}

.quantity-btn {
  background: transparent;
  border: none;
  width: 28px;
  height: 28px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
}

.quantity-val {
  font-size: 14px;
  width: 24px;
  text-align: center;
}

.cart-item-remove {
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 4px;
}

.cart-item-remove:hover {
  color: #c94a4a;
}

.cart-footer {
  padding: var(--spacing-lg);
  border-top: 1px solid var(--border);
  background-color: var(--secondary);
}

.cart-subtotal {
  display: flex;
  justify-content: space-between;
  font-size: 18px;
  font-weight: 600;
  margin-bottom: var(--spacing-md);
}

/* MOBILE NAV DRAWER */
.mobile-nav-drawer {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--background);
  z-index: 1500;
  transform: translateY(-100%);
  transition: transform var(--transition-medium);
  display: flex;
  flex-direction: column;
  padding: 100px var(--spacing-lg) var(--spacing-lg);
}

.mobile-nav-drawer.active {
  transform: translateY(0);
}

.mobile-nav-menu {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  margin-bottom: auto;
}

.mobile-nav-link {
  font-family: var(--font-display);
  font-size: 36px;
  color: var(--text-primary);
  display: block;
}

/* FORM STYLING */
.form-group {
  margin-bottom: var(--spacing-md);
}

.form-label {
  display: block;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-primary);
  letter-spacing: 0.05em;
}

.form-control {
  width: 100%;
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--rounded-md);
  padding: 14px 20px;
  font-family: var(--font-body);
  font-size: 16px;
  color: var(--neutral);
  outline: none;
  padding: 10px 16px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(23, 60, 123, 0.08);
}


textarea.form-control {
  resize: vertical;
  min-height: 120px;
}

/* MODAL STRUCTURE */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
  z-index: 3000;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-medium);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-content {
  background-color: var(--background);
  border-radius: var(--rounded-lg);
  border: 1px solid var(--border);
  max-width: 650px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-hover);
  position: relative;
  transform: translateY(20px);
  transition: transform var(--transition-medium);
  padding: var(--card-padding);
}

.modal-overlay.active .modal-content {
  transform: translateY(0);
}

.modal-close-btn {
  position: absolute;
  top: 20px;
  right: 20px;
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--text-secondary);
}

/* FOOTER */
.footer {
  background-color: var(--secondary);
  border-top: 1px solid var(--border);
  padding-top: var(--section-padding);
  padding-bottom: var(--spacing-xl);
}

.footer-logo img {
  height: 32px;
  margin-bottom: var(--spacing-md);
}

.footer-links-title {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer-link a {
  color: var(--text-secondary);
  font-size: 16px;
}

.footer-link a:hover {
  color: var(--primary);
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: var(--spacing-lg);
  margin-top: var(--spacing-xxl);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  color: var(--text-secondary);
  font-size: 14px;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}