/* ============================================================
   responsive.css - Optika Hrast mobile-first responsive CSS
   Breakpoints:
     sm:  480px
     md:  768px
     lg:  1024px
     xl:  1280px
   ============================================================ */

/* ============================================================
   BASE MOBILE (< 480px)
   ============================================================ */

/* Layout */
.container {
    padding-inline: var(--sp-4);
}

.section {
    padding-block: var(--sp-12);
}

.section--sm {
    padding-block: var(--sp-8);
}

/* Header */
.site-header__inner {
    gap: var(--sp-3);
}

.site-header__logo-text {
    font-size: 1.1rem;
}

/* Main nav hidden on mobile — handled by mobile-nav */
.main-nav {
    display: none;
}

/* Header actions */
.header-actions {
    gap: var(--sp-2);
}

.header-actions .btn--icon {
    width: 38px;
    height: 38px;
}

/* Hamburger visible on mobile */
.hamburger {
    display: flex;
}

/* Mega menu hidden on mobile (replaced by mobile-nav) */
.mega-menu {
    display: none !important;
}

/* Mobile nav */
.mobile-nav {
    width: 100%;
    max-width: 320px;
}

/* Hero */
.hero {
    min-height: 80vh;
    padding-block: var(--sp-16) var(--sp-12);
}

.hero__title {
    font-size: clamp(2rem, 8vw, 3rem);
}

.hero__subtitle {
    font-size: 1rem;
}

.hero__actions {
    flex-direction: column;
    align-items: stretch;
}

.hero__actions .btn {
    width: 100%;
    justify-content: center;
}

.hero__trust {
    flex-direction: column;
    gap: var(--sp-3);
}

/* Category cards */
.cat-cards {
    grid-template-columns: 1fr;
    gap: var(--sp-4);
}

.cat-card {
    min-height: 200px;
}

/* Section header */
.section-header {
    text-align: center;
}

/* Product grid */
.product-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--sp-3);
}

/* Product card */
.product-card__name {
    font-size: 0.875rem;
}

.product-card__price {
    font-size: 0.875rem;
}

/* Eye-test banner */
.eye-test-banner__inner {
    grid-template-columns: 1fr;
    text-align: center;
}

.eye-test-banner__actions {
    justify-content: center;
}

/* About section */
.about-section__inner {
    grid-template-columns: 1fr;
    gap: var(--sp-8);
}

.about-values {
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-3);
}

.about-stats {
    grid-template-columns: 1fr 1fr;
}

/* Locations */
.locations-grid {
    grid-template-columns: 1fr;
    gap: var(--sp-6);
}

/* Footer */
.footer__grid {
    grid-template-columns: 1fr;
    gap: var(--sp-8);
}

.footer__bottom {
    flex-direction: column;
    gap: var(--sp-3);
    text-align: center;
}

.footer__payment-icons {
    justify-content: center;
}

/* Shop layout */
.shop-layout {
    display: block;
}

.filter-sidebar {
    position: fixed;
    inset: 0;
    z-index: 300;
    background: #fff;
    transform: translateX(-100%);
    transition: transform var(--trans-base);
    overflow-y: auto;
    padding: var(--sp-6) var(--sp-4);
    width: 85%;
    max-width: 320px;
}

.filter-sidebar.is-open {
    transform: translateX(0);
}

.filter-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 299;
}

.filter-overlay.is-active {
    display: block;
}

.filter-sidebar__close {
    display: flex;
    align-items: center;
    gap: var(--sp-2);
    margin-bottom: var(--sp-6);
    padding-bottom: var(--sp-4);
    border-bottom: 1px solid var(--c-border);
    background: none;
    border: none;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
}

.shop-toolbar {
    flex-wrap: wrap;
    gap: var(--sp-3);
}

.shop-toolbar__filter-btn {
    display: flex;
}

.shop-toolbar__count {
    font-size: 0.875rem;
}

/* Product detail */
.product-detail {
    grid-template-columns: 1fr;
    gap: var(--sp-6);
}

.product-gallery__main {
    aspect-ratio: 4/3;
}

.product-info__title {
    font-size: 1.5rem;
}

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

.cart-summary {
    order: -1;
}

/* Checkout */
.checkout-layout {
    grid-template-columns: 1fr;
}

.checkout-summary {
    order: -1;
}

.checkout-steps {
    gap: var(--sp-2);
}

.checkout-step__label {
    display: none;
}

/* Auth */
.auth-card {
    margin: var(--sp-8) var(--sp-4);
    padding: var(--sp-6) var(--sp-4);
}

/* Account */
.account-layout {
    grid-template-columns: 1fr;
}

.account-sidebar {
    position: static;
}

.account-nav {
    display: flex;
    flex-wrap: wrap;
    gap: var(--sp-2);
}

.account-nav__item + .account-nav__item {
    margin-top: 0;
}

.account-nav__link {
    padding: var(--sp-2) var(--sp-3);
    font-size: 0.875rem;
    border: 1px solid var(--c-border);
    border-radius: var(--r-md);
}

.account-nav__link.is-active,
.account-nav__link:hover {
    background: var(--c-black);
    color: #fff;
    border-color: var(--c-black);
}

/* About page */
.about-intro__inner {
    grid-template-columns: 1fr;
}

.about-values-grid {
    grid-template-columns: 1fr 1fr;
}

.about-stats-grid {
    grid-template-columns: 1fr 1fr;
}

/* Contact page */
.contact-locations {
    grid-template-columns: 1fr;
}

.contact-location__map iframe {
    height: 200px;
}

.contact-form-section__inner {
    grid-template-columns: 1fr;
}

/* Eye-test page */
.eye-test-reasons {
    grid-template-columns: 1fr 1fr;
}

.eye-test-steps {
    grid-template-columns: 1fr;
}

/* Payment result */
.payment-result {
    padding: var(--sp-8) var(--sp-4);
}

.payment-result__actions {
    flex-direction: column;
}

.payment-result__actions .btn {
    width: 100%;
    justify-content: center;
}

/* Tables — horizontal scroll on mobile */
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.data-table {
    min-width: 560px;
}

/* Account orders table */
.account-orders-table {
    min-width: 600px;
}

/* Breadcrumbs */
.breadcrumbs {
    font-size: 0.8125rem;
}

/* Pagination */
.pagination {
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--sp-1);
}

/* Quick order */
.quick-order-layout {
    grid-template-columns: 1fr;
}

/* Toast */
.toast-container {
    left: var(--sp-4);
    right: var(--sp-4);
    bottom: var(--sp-4);
    top: auto;
    align-items: stretch;
}

.toast {
    min-width: auto;
    max-width: 100%;
}


/* ============================================================
   SM: 480px+
   ============================================================ */
@media (min-width: 480px) {

    .container {
        padding-inline: var(--sp-5);
    }

    /* Cat cards — 2 col at 480 */
    .cat-cards {
        grid-template-columns: repeat(2, 1fr);
    }

    /* Product grid — 2 col at 480 */
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* Hero */
    .hero__actions {
        flex-direction: row;
        align-items: center;
    }

    .hero__actions .btn {
        width: auto;
    }

    /* Auth card */
    .auth-card {
        margin: var(--sp-12) auto;
        padding: var(--sp-8) var(--sp-6);
    }

    /* Eye-test steps */
    .eye-test-steps {
        grid-template-columns: repeat(2, 1fr);
    }

    /* Payment result actions */
    .payment-result__actions {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
    }

    .payment-result__actions .btn {
        width: auto;
    }

    /* Toast */
    .toast-container {
        left: var(--sp-4);
        right: var(--sp-4);
        bottom: var(--sp-4);
        align-items: flex-end;
    }

    .toast {
        min-width: 300px;
        max-width: 420px;
    }

}


/* ============================================================
   MD: 768px+
   ============================================================ */
@media (min-width: 768px) {

    .container {
        padding-inline: var(--sp-6);
    }

    .section {
        padding-block: var(--sp-16);
    }

    /* Header */
    .site-header__logo-text {
        font-size: 1.25rem;
    }

    /* Hamburger still visible on tablet — hidden at lg */

    /* Hero */
    .hero {
        min-height: 85vh;
    }

    .hero__title {
        font-size: clamp(2.5rem, 6vw, 4rem);
    }

    .hero__subtitle {
        font-size: 1.125rem;
    }

    .hero__trust {
        flex-direction: row;
    }

    /* Category cards — 3 col */
    .cat-cards {
        grid-template-columns: repeat(3, 1fr);
    }

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

    .product-grid--wide {
        grid-template-columns: repeat(4, 1fr);
    }

    /* Footer */
    .footer__grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--sp-8);
    }

    .footer__bottom {
        flex-direction: row;
        justify-content: space-between;
    }

    /* Eye-test banner */
    .eye-test-banner__inner {
        grid-template-columns: 1fr auto;
        text-align: left;
    }

    .eye-test-banner__actions {
        justify-content: flex-end;
    }

    /* About section */
    .about-values {
        grid-template-columns: repeat(4, 1fr);
    }

    .about-stats {
        grid-template-columns: repeat(4, 1fr);
    }

    /* Cart layout — 2 col at md */
    .cart-layout {
        grid-template-columns: 1fr 360px;
    }

    .cart-summary {
        order: 0;
    }

    /* Checkout summary appears on right at md */
    .checkout-layout {
        grid-template-columns: 1fr 380px;
    }

    .checkout-summary {
        order: 0;
    }

    .checkout-step__label {
        display: block;
    }

    /* Account layout — 2 col at md */
    .account-layout {
        grid-template-columns: 240px 1fr;
    }

    .account-sidebar {
        position: sticky;
        top: calc(var(--header-h) + var(--sp-6));
        align-self: start;
    }

    .account-nav {
        display: block;
    }

    .account-nav__item + .account-nav__item {
        margin-top: var(--sp-1);
    }

    .account-nav__link {
        padding: var(--sp-2) var(--sp-4);
        font-size: 1rem;
        border: none;
        border-radius: var(--r-md);
    }

    /* Contact */
    .contact-locations {
        grid-template-columns: repeat(2, 1fr);
    }

    /* About page */
    .about-values-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .about-stats-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    /* Eye-test */
    .eye-test-reasons {
        grid-template-columns: repeat(4, 1fr);
    }

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

    /* Shop toolbar filter btn on md shows text */
    .shop-toolbar__filter-btn span {
        display: inline;
    }

    /* Quick order */
    .quick-order-layout {
        grid-template-columns: 1fr 340px;
    }

    /* Product detail */
    .product-detail {
        grid-template-columns: 1fr 1fr;
        gap: var(--sp-12);
    }

    /* Locations */
    .locations-grid {
        grid-template-columns: repeat(2, 1fr);
    }

}


/* ============================================================
   LG: 1024px+
   ============================================================ */
@media (min-width: 1024px) {

    /* Hamburger hidden — desktop nav takes over */
    .hamburger {
        display: none;
    }

    /* Main nav visible */
    .main-nav {
        display: flex;
    }

    /* Mobile nav hidden on desktop */
    .mobile-nav-overlay,
    .mobile-nav {
        display: none !important;
    }

    /* Header */
    .site-header__inner {
        gap: var(--sp-6);
    }

    /* Mega menu active on hover — CSS handles visibility */
    .mega-menu {
        display: block !important;
    }

    /* Hero */
    .hero {
        min-height: 90vh;
    }

    .hero__title {
        font-size: clamp(3rem, 5vw, 4.5rem);
    }

    /* Product grid — 4 col */
    .product-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    /* Shop layout — sidebar + main */
    .shop-layout {
        display: grid;
        grid-template-columns: 260px 1fr;
        gap: var(--sp-8);
        align-items: start;
    }

    /* Filter sidebar — static in grid */
    .filter-sidebar {
        position: sticky;
        top: calc(var(--header-h) + var(--sp-6));
        transform: none;
        background: transparent;
        width: auto;
        max-width: none;
        padding: 0;
        overflow: visible;
        z-index: 1;
    }

    .filter-sidebar.is-open {
        transform: none;
    }

    .filter-sidebar__close {
        display: none;
    }

    .filter-overlay {
        display: none !important;
    }

    /* Hide mobile filter btn at desktop */
    .shop-toolbar__filter-btn {
        display: none;
    }

    /* Footer */
    .footer__grid {
        grid-template-columns: 2fr 1fr 1fr 1.5fr;
    }

    /* Eye-test steps */
    .eye-test-steps {
        grid-template-columns: repeat(4, 1fr);
    }

    /* About intro */
    .about-intro__inner {
        grid-template-columns: 1fr 1fr;
        gap: var(--sp-16);
        align-items: center;
    }

    /* Contact form section */
    .contact-form-section__inner {
        grid-template-columns: 1fr 380px;
        gap: var(--sp-12);
        align-items: start;
    }

    /* Product gallery thumbnails */
    .product-gallery {
        display: grid;
        grid-template-columns: 72px 1fr;
        gap: var(--sp-3);
        align-items: start;
    }

    .product-gallery__thumbs {
        display: flex;
        flex-direction: column;
        gap: var(--sp-2);
        order: -1;
    }

    /* Cart layout */
    .cart-layout {
        grid-template-columns: 1fr 400px;
    }

    /* Checkout layout */
    .checkout-layout {
        grid-template-columns: 1fr 420px;
    }

    /* Account layout */
    .account-layout {
        grid-template-columns: 260px 1fr;
        gap: var(--sp-10);
    }

}


/* ============================================================
   XL: 1280px+
   ============================================================ */
@media (min-width: 1280px) {

    .container {
        padding-inline: var(--sp-8);
    }

    /* Hero */
    .hero__title {
        font-size: 5rem;
    }

    /* Product grid — up to 4 col */
    .product-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    /* Shop layout wider sidebar */
    .shop-layout {
        grid-template-columns: 280px 1fr;
    }

    /* Cart layout */
    .cart-layout {
        grid-template-columns: 1fr 420px;
    }

}


/* ============================================================
   PRINT
   ============================================================ */
@media print {

    .site-header,
    .site-footer,
    .breadcrumbs,
    .payment-result__actions,
    .btn,
    .cart-drawer,
    .mobile-nav-overlay,
    .search-overlay,
    .toast-container {
        display: none !important;
    }

    body {
        font-size: 12pt;
        color: #000;
    }

    .container {
        max-width: 100%;
        padding: 0;
    }

    a {
        text-decoration: underline;
        color: #000;
    }

    a[href]::after {
        content: ' (' attr(href) ')';
        font-size: 10pt;
        color: #666;
    }

    /* Payment success — print friendly */
    .payment-result {
        padding: 0;
        box-shadow: none;
    }

    .payment-result__icon {
        print-color-adjust: exact;
    }

}


/* ============================================================
   REDUCED MOTION
   ============================================================ */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

}


/* ============================================================
   HIGH CONTRAST
   ============================================================ */
@media (forced-colors: active) {

    .btn--primary {
        border: 2px solid ButtonText;
    }

    .badge {
        border: 1px solid ButtonText;
    }

    .product-card {
        border: 1px solid ButtonText;
    }

}