/* Typography */
h1, h2, h3, .heading-serif {
  font-family: var(--font-serif);
  font-weight: 400;
  line-height: 1.2;
}

.text-sm { font-size: 0.875rem; }
.text-lg { font-size: 1.25rem; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  border: 1px solid var(--color-text);
  background: transparent;
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  transition: background 0.3s, color 0.3s;
  will-change: transform;
}

.btn:hover {
  background: var(--color-text);
  color: var(--color-bg);
}

.btn-solid {
  background: var(--color-text);
  color: var(--color-bg);
}

.btn-solid:hover {
  background: transparent;
  color: var(--color-text);
}

/* Product Cards */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-lg) var(--spacing-md);
}

.product-card {
  position: relative;
  display: block;
}

.product-image-wrapper {
  position: relative;
  aspect-ratio: 3/4;
  overflow: hidden;
  background: #eee;
  margin-bottom: var(--spacing-sm);
}

.product-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.25, 1, 0.5, 1);
}

.product-image.hover-img {
  position: absolute;
  top: 0;
  left: 0;
  opacity: 0;
}

.product-card:hover .product-image:not(.hover-img) {
  opacity: 0;
}
.product-card:hover .hover-img {
  opacity: 1;
  transform: scale(1.05);
}

.product-info {
  display: flex;
  justify-content: space-between;
  font-size: 0.9rem;
}
.product-price {
  color: var(--color-grey);
}

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

.form-input {
  width: 100%;
  padding: 1rem 0;
  border: none;
  border-bottom: 1px solid var(--color-grey);
  background: transparent;
  outline: none;
  font-family: inherit;
  font-size: 1rem;
  transition: border-color 0.3s;
}

.form-input:focus {
  border-color: var(--color-text);
}

.newsletter-form {
  display: flex;
  border-bottom: 1px solid var(--color-text);
}

.newsletter-form input {
  flex-grow: 1;
  border: none;
  background: transparent;
  padding: 0.5rem 0;
  outline: none;
}

.newsletter-form button {
  background: transparent;
  border: none;
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
}