/* ================================================
   Waikato Website - Layout Styles
   Header, Footer, Grid, Responsive
   ================================================ */

/* ================================================
   Container & Grid
   ================================================ */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 calc(var(--spacing-md) * -1);
}

.col {
    padding: 0 var(--spacing-md);
}

/* ================================================
   Header
   ================================================ */
.header {
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-gray-200);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header__top {
    background-color: var(--color-primary);
    color: var(--color-white);
    font-size: var(--font-size-sm);
    padding: var(--spacing-sm) 0;
}

.header__top-container {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-lg);
}

.header__top-link {
    color: var(--color-white);
    text-decoration: none;
}

.header__top-link:hover {
    text-decoration: underline;
}

.header__main {
    padding: var(--spacing-md) 0;
}

.header__main-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.header__logo {
    flex-shrink: 0;
}

.header__logo img {
    height: 50px;
    width: auto;
}

.header__logo-text {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-primary);
    text-decoration: none;
}

.header__logo-text:hover {
    text-decoration: none;
    color: var(--color-accent);
}

.header__search {
    flex: 1;
    max-width: 600px;
}

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

.header__action-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: none;
    border: none;
    color: var(--color-primary);
    font-size: var(--font-size-sm);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    transition: background-color 0.2s;
}

.header__action-btn:hover {
    background-color: var(--color-gray-100);
}

.header__action-icon {
    font-size: 24px;
    color: var(--color-accent);
}

.header__cart-count {
    background-color: var(--color-accent);
    color: var(--color-white);
    font-size: var(--font-size-xs);
    font-weight: 700;
    padding: 2px 6px;
    border-radius: var(--border-radius-full);
    min-width: 20px;
    text-align: center;
}

/* ================================================
   Main Content Layout
   ================================================ */
.main {
    min-height: calc(100vh - var(--header-height) - 200px);
    padding: var(--spacing-xl) 0;
}

.page-layout {
    display: flex;
    gap: var(--spacing-xl);
}

.page-layout__sidebar {
    width: var(--sidebar-width);
    flex-shrink: 0;
}

.page-layout__content {
    flex: 1;
    min-width: 0;
}

/* Sidebar */
.sidebar {
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--border-radius-sm);
    padding: var(--spacing-lg);
}

.sidebar__title {
    font-size: var(--font-size-lg);
    font-weight: 500;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-gray-200);
}

/* ================================================
   Product Grid
   ================================================ */
.product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

.product-grid--3col {
    grid-template-columns: repeat(3, 1fr);
}

.product-grid--2col {
    grid-template-columns: repeat(2, 1fr);
}

/* ================================================
   Page Header
   ================================================ */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-gray-200);
}

.page-header__title {
    font-size: var(--font-size-2xl);
    margin-bottom: 0;
}

.page-header__count {
    font-size: var(--font-size-sm);
    color: var(--color-gray-400);
    font-weight: 400;
    margin-left: var(--spacing-sm);
}

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

/* Sort Dropdown */
.sort-select {
    padding: var(--spacing-sm) var(--spacing-md);
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--border-radius-sm);
    background-color: var(--color-white);
    cursor: pointer;
    min-width: 180px;
}

/* ================================================
   Product Details Page
   ================================================ */
.product-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
}

.product-details__gallery {
    background: var(--color-gray-50);
    border-radius: var(--border-radius-sm);
    padding: var(--spacing-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 400px;
}

.product-details__gallery img {
    max-width: 100%;
    max-height: 400px;
    object-fit: contain;
}

.product-details__info {
    padding: var(--spacing-md) 0;
}

.product-details__title {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-sm);
}

.product-details__sku {
    font-size: var(--font-size-sm);
    color: var(--color-gray-400);
    margin-bottom: var(--spacing-lg);
}

.product-details__price {
    font-size: var(--font-size-3xl);
    font-weight: 500;
    margin-bottom: var(--spacing-lg);
}

.product-details__description {
    color: var(--color-gray-400);
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
}

.product-details__actions {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
    margin-bottom: var(--spacing-xl);
}

.product-details__add-btn {
    flex: 1;
    max-width: 300px;
}

/* ================================================
   Cart Page
   ================================================ */
.cart-layout {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: var(--spacing-xl);
}

.cart-items {
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--border-radius-sm);
    padding: var(--spacing-lg);
}

.cart-items__title {
    font-size: var(--font-size-xl);
    font-weight: 500;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 0.5px solid var(--color-gray-300);
}

/* ================================================
   Footer
   ================================================ */
.footer {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    margin-top: var(--spacing-3xl);
}

.footer__container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-xl);
}

.footer__section {
    margin-bottom: var(--spacing-lg);
}

.footer__title {
    font-size: var(--font-size-base);
    font-weight: 500;
    margin-bottom: var(--spacing-md);
    color: var(--color-accent);
}

.footer__list {
    list-style: none;
}

.footer__link {
    display: block;
    color: var(--color-white);
    font-size: var(--font-size-sm);
    padding: var(--spacing-xs) 0;
    opacity: 0.8;
    transition: opacity 0.2s;
}

.footer__link:hover {
    opacity: 1;
    text-decoration: none;
}

.footer__bottom {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    text-align: center;
    font-size: var(--font-size-sm);
    opacity: 0.7;
}

/* ================================================
   Responsive Styles
   ================================================ */
@media (max-width: 1200px) {
    .product-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 992px) {
    .page-layout {
        flex-direction: column;
    }

    .page-layout__sidebar {
        width: 100%;
    }

    .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .product-details {
        grid-template-columns: 1fr;
    }

    .cart-layout {
        grid-template-columns: 1fr;
    }

    .footer__container {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-lg: 16px;
        --spacing-xl: 24px;
    }

    .header__main-container {
        flex-wrap: wrap;
        gap: var(--spacing-md);
    }

    .header__search {
        order: 3;
        max-width: 100%;
        width: 100%;
    }

    .product-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }

    .cart-item {
        flex-wrap: wrap;
    }

    .cart-item__price {
        width: 100%;
        text-align: left;
        margin-top: var(--spacing-md);
    }

    .footer__container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .product-grid {
        grid-template-columns: 1fr;
    }

    .btn {
        width: 100%;
    }

    .product-details__actions {
        flex-direction: column;
    }

    .product-details__add-btn {
        max-width: 100%;
    }
}