/* =========================================
   BRAND PAGE — BRISTLE GRID
========================================= */

.brand-subheader {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  z-index: calc(var(--z-header) - 1);

  background: var(--color-bg-surface);
  box-shadow: none;

  transform: translateY(0);

  transition:
    top var(--duration-header) var(--ease-header),
    background-color var(--duration-slow) var(--ease-smooth),
    box-shadow var(--duration-slow) var(--ease-smooth);
}

.brand-subheader.is-header-hidden {
  top: 0;
  box-shadow: var(--shadow-xs);
}

.brand-subheader__inner {
  min-height: var(--header-height);
  padding: 0 var(--panel-padding-x);

  display: flex;
  align-items: center;
}

.brand-subheader__title {
  margin: var(--space-0);

  color: var(--color-text-primary);

  font-size: var(--text-fluid-xs);
  font-weight: var(--font-weight-medium);
  line-height: var(--line-height-tight);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
}

/* =========================================
   SECTION
========================================= */

.brand-section {
  padding-top: calc(var(--header-height) * 2);
  padding-bottom: var(--space-24);

  background: var(--color-bg-body);
}

.brand-section__inner {
  padding-left: var(--panel-padding-x);
  padding-right: var(--panel-padding-x);
}

/* =========================================
   GRID
========================================= */

.brand-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-10);
}

/* =========================================
   CARD
========================================= */

.brand-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);

  color: inherit;
  text-decoration: none;

  transition:
    opacity var(--duration-normal) var(--ease-smooth),
    transform var(--duration-normal) var(--ease-smooth);
}

.brand-card:hover {
  opacity: 1;
}

/* ================= MEDIA ================= */

.brand-card__media {
  position: relative;

  width: 100%;
  aspect-ratio: 1 / 1;

  display: flex;
  align-items: center;
  justify-content: center;

  background: var(--color-surface-subtle);

  overflow: hidden;
}

.brand-card__media img {
  max-width: var(--brand-logo-max-size);
  max-height: var(--brand-logo-max-size);
  object-fit: contain;

  transition: transform var(--duration-normal) var(--ease-smooth);
}

.brand-card:hover .brand-card__media img {
  transform: scale(var(--scale-hover-sm));
}

/* ================= NAME ================= */

.brand-card__name {
  display: inline-flex;
  align-items: center;
  justify-content: center;

  min-height: var(--btn-height-lg);
  width: 100%;
  max-width: var(--brand-card-button-width);
  padding: 0 var(--space-6);

  border: var(--border-1) solid var(--color-border-soft-black);
  background: transparent;
  color: var(--color-text-primary);

  font-size: var(--text-fluid-xs);
  font-weight: var(--font-weight-medium);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;

  transition:
    border-color var(--duration-normal) var(--ease-smooth),
    color var(--duration-normal) var(--ease-smooth),
    transform var(--duration-fast) var(--ease-smooth);
}

.brand-card:hover .brand-card__name {
  border-color: var(--color-border-strong-black);
  color: var(--color-text-strong);
}

/* =========================================
   PRODUCT GRID
========================================= */

.product-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-10);
}

.product-card {
  display: block;
  text-decoration: none;
  color: inherit;
}

.product-card__media {
  width: 100%;
  aspect-ratio: 1 / 1;
  background: var(--color-surface-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
}

.product-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-card__info {
  margin-top: var(--space-3);
}

.product-card__name {
  font-size: var(--font-size-sm);
  opacity: 0.8;
}

.product-card__price {
  margin-top: var(--space-2);
}

.price-old {
  text-decoration: line-through;
  opacity: 0.4;
  margin-right: var(--space-2);
}

.price-new {
  font-weight: var(--font-weight-medium);
}


/* =========================================
   RESPONSIVE
========================================= */

@media (max-width: 1024px) {
  .brand-subheader__inner,
  .brand-section__inner {
    padding-left: var(--space-6);
    padding-right: var(--space-6);
  }
}

@media (max-width: 768px) {
  .brand-subheader {
    top: var(--header-height-mobile);
  }

  .brand-subheader.is-header-hidden {
    top: 0;
  }

  .brand-subheader__inner {
    min-height: var(--header-height-mobile);
    padding-left: var(--panel-padding-x-mobile);
    padding-right: var(--panel-padding-x-mobile);
  }

  .brand-section {
    padding-top: calc(var(--header-height-mobile) * 2);
    padding-bottom: var(--space-20);
  }

  .brand-section__inner {
    padding-left: var(--panel-padding-x-mobile);
    padding-right: var(--panel-padding-x-mobile);
  }

  .brand-grid {
    gap: var(--space-8);
  }

  .brand-card__media img {
    max-width: var(--brand-logo-max-size-mobile);
    max-height: var(--brand-logo-max-size-mobile);
  }

  .brand-card__name {
    min-height: var(--btn-height-md);
  }
}


/* =========================================
   FILTER BAR
========================================= */

.brand-filter {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  z-index: calc(var(--z-header) - 2);

  background: var(--color-bg-surface);
  box-shadow: none;

  transition:
    top var(--duration-header) var(--ease-header),
    box-shadow var(--duration-slow) var(--ease-smooth);
}

.brand-filter.is-header-hidden {
  top: 0;
  box-shadow: var(--shadow-xs);
}

.brand-filter__inner {
  min-height: var(--header-height);
  padding: 0 var(--panel-padding-x);

  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--space-6);
}

/* =========================================
   SECTION
========================================= */

.brand-section {
  padding-top: calc(var(--header-height) * 2 + var(--space-8));
  padding-bottom: var(--space-24);

  background: var(--color-bg-body);
}

.brand-section__inner {
  padding-left: var(--panel-padding-x);
  padding-right: var(--panel-padding-x);
}

/* =========================================
   PRODUCT GRID
========================================= */

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-10);
}

/* =========================================
   PRODUCT CARD
========================================= */

.product-card {
  display: block;

  color: inherit;
  text-decoration: none;
}

/* ================= MEDIA ================= */

.product-card__media {
  position: relative;

  width: 100%;
  aspect-ratio: 4 / 5;

  background: var(--color-surface-subtle);
  overflow: hidden;
}

.product-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ================= BADGE ================= */

.product-card__badge {
  position: absolute;
  top: var(--space-3);
  left: var(--space-3);
  z-index: var(--z-content);

  padding: var(--space-2);

  background: var(--color-black);
  color: var(--color-white);

  font-size: var(--text-fluid-2xs);
  font-weight: var(--font-weight-medium);
  line-height: var(--line-height-tight);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
}

/* ================= INFO ================= */

.product-card__info {
  margin-top: var(--space-3);
}

.product-card__brand {
  color: var(--color-text-muted);

  font-size: var(--text-fluid-2xs);
  font-weight: var(--font-weight-medium);
  line-height: var(--line-height-snug);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
}

.product-card__name {
  margin-top: var(--space-2);

  color: var(--color-text-primary);

  font-size: var(--text-fluid-xs);
  font-weight: var(--font-weight-medium);
  line-height: var(--line-height-snug);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
}

.product-card__price {
  margin-top: var(--space-2);

  font-size: var(--text-fluid-sm);
  line-height: var(--line-height-snug);
  letter-spacing: var(--tracking-wide);
}

.price-old {
  margin-right: var(--space-2);

  color: var(--color-text-muted);
  opacity: var(--opacity-subtle);
  text-decoration: line-through;
}

.price-new {
  color: var(--color-text-primary);
  font-weight: var(--font-weight-medium);
}

.brand-filter__nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);

  min-width: 0;
  overflow-x: auto;
  overflow-y: hidden;
  white-space: nowrap;
  scrollbar-width: none;
}

.brand-filter__nav::-webkit-scrollbar {
  display: none;
}

.brand-filter__right {
  display: flex;
  align-items: center;
  justify-content: flex-end;

  height: 100%;
  min-height: var(--size-sm);
  flex-shrink: 0;
  justify-self: end;
}

.brand-filter__link,
.brand-filter__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;

  min-height: var(--size-sm);
  padding: 0 var(--space-3);

  color: var(--color-text-primary);

  font-size: var(--text-fluid-xs);
  font-weight: var(--font-weight-medium);
  line-height: var(--line-height-snug);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  text-decoration: none;
}

.brand-filter__link {
  border: var(--border-1) solid transparent;
}

.brand-filter__link.is-active {
  border-color: var(--color-text-primary);
}

.brand-filter__btn {
  background: transparent;
  border: var(--border-0);
  cursor: pointer;
  white-space: nowrap;
}

/* =========================================
   RESPONSIVE
========================================= */

@media (max-width: 1024px) {
  .brand-filter__inner,
  .brand-section__inner {
    padding-left: var(--space-6);
    padding-right: var(--space-6);
  }
}

@media (max-width: 768px) {
  .brand-filter {
    top: var(--header-height-mobile);
  }

  .brand-filter.is-header-hidden {
    top: 0;
  }

  .brand-filter__inner {
    min-height: var(--header-height-mobile);
    padding-left: var(--panel-padding-x-mobile);
    padding-right: var(--panel-padding-x-mobile);
    gap: var(--space-4);
  }

  .brand-filter__nav {
    gap: var(--space-4);
  }

  .brand-filter__right {
    display: none;
  }
  
  .brand-section {
    padding-top: calc(var(--header-height-mobile) * 2 + var(--space-6));
    padding-bottom: var(--space-20);
  }

  .brand-section__inner {
    padding-left: var(--panel-padding-x-mobile);
    padding-right: var(--panel-padding-x-mobile);
  }

  .product-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-8);
  }
}