:root {
    --gold: #ffd700;
    --black: #000;
    --gray-dark: #222;
    --light-gray: #333;
    --font-main: 'Space Mono', monospace;
    --padding-unit: 1rem;
    --font-size-base: 16px;
    --primary: #ffd700;
    --accent-secondary: #ffd700;
    --transition: all 0.3s ease;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: var(--font-main);
}

body {
    font-family: var(--font-main);
    background-color: var(--black);
    color: #fff;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    font-size: var(--font-size-base);
    line-height: 1.5;
    -webkit-tap-highlight-color: transparent;
}

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: #111;
}
::-webkit-scrollbar-thumb {
    background: var(--gold);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #e6c200;
}
* {
    scrollbar-color: var(--gold) #111;
    scrollbar-width: thin;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--padding-unit);
    background-color: var(--black);
    position: sticky;
    top: 0;
    z-index: 1000;
    width: 100%;
}
header img.logo {
    width: clamp(80px, 15vw, 100px);
    height: auto;
    border-radius: 50%;
    order: 2;
    margin: 0 auto;
}
.cart-icon {
    position: relative;
    cursor: pointer;
    font-size: clamp(1.2rem, 5vw, 1.4rem);
    color: var(--gold);
    padding: 0.5rem;
    order: 1;
}
.cart-count {
    position: absolute;
    top: -6px;
    right: -8px;
    background-color: var(--gold);
    color: var(--black);
    border-radius: 50%;
    padding: 2px 6px;
    font-size: clamp(0.6rem, 2vw, 0.75rem);
    font-weight: bold;
}
.menu-icon {
    font-size: clamp(1.2rem, 5vw, 1.5rem);
    color: var(--gold);
    cursor: pointer;
    padding: 0.5rem;
    order: 3;
    display: none;
}

.search-container {
    margin: var(--padding-unit);
    width: 100%;
    max-width: 600px;
    position: relative;
}
.search-container input {
    width: 100%;
    padding: 0.75rem 2.5rem 0.75rem 1rem;
    border: 2px solid var(--gold);
    border-radius: 25px;
    background-color: #111;
    color: #fff;
    font-size: clamp(0.9rem, 3vw, 1rem);
    transition: all 0.3s ease;
    box-shadow: 0 0 10px rgba(255, 215, 0, 0.2);
}
.search-container input:focus {
    outline: none;
    border-color: #e6c200;
    box-shadow: 0 0 15px rgba(255, 215, 0, 0.4);
    transform: scale(1.02);
}
.search-container::before {
    content: '\f002';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gold);
    font-size: clamp(0.9rem, 3vw, 1rem);
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(150px, 100%), 1fr));
    gap: clamp(0.5rem, 2vw, 1rem);
    padding: var(--padding-unit);
}
.product {
    background-color: #111;
    border-radius: 8px;
    overflow: hidden;
    text-align: center;
    padding: 0.5rem;
    transition: transform 0.2s;
    cursor: pointer;
    position: relative;
}
.product:hover {
    transform: scale(1.02);
}

.product-image-container {
    position: relative;
    width: 100%;
    height: clamp(150px, 40vw, 200px);
}
.product-image-front, .product-image-back {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 4px;
    transition: opacity 0.3s ease;
}
.product-image-back {
    position: absolute;
    top: 0;
    left: 0;
    opacity: 0;
}
.product-image-container:hover .product-image-front {
    opacity: 0;
}
.product-image-container:hover .product-image-back {
    opacity: 1;
}

.product-checkbox {
    position: absolute;
    top: 0.5rem;
    left: 0.5rem;
    cursor: pointer;
}

.product p.name {
    margin: 0.3rem 0;
    font-weight: bold;
    font-size: clamp(0.9rem, 3.5vw, 1rem);
}
.product p.price {
    color: var(--gold);
    font-size: clamp(0.8rem, 3vw, 0.9rem);
}
.product button {
    margin-top: 0.3rem;
    background-color: var(--gold);
    color: var(--black);
    border: none;
    border-radius: 4px;
    padding: 0.4rem 0.8rem;
    cursor: pointer;
    font-weight: bold;
    font-size: clamp(0.7rem, 2.5vw, 0.8rem);
    width: 100%;
    transition: background-color 0.3s;
}
.product button:hover {
    background-color: #e6c200;
}

footer {
    background: linear-gradient(180deg, #111 0%, var(--gray-dark) 100%);
    padding: calc(var(--padding-unit) * 2) var(--padding-unit);
    text-align: center;
    margin-top: auto;
    width: 100%;
    color: #fff;
    position: relative;
    overflow: hidden;
}
footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: var(--gold);
    opacity: 0.5;
}
.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}
.footer-links {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
}
.footer-links a {
    color: var(--gold);
    font-size: clamp(1.2rem, 4vw, 1.5rem);
    transition: all 0.3s ease;
    position: relative;
    padding: 0.5rem;
}
.footer-links a:hover {
    color: #fff;
    transform: translateY(-2px);
}
.footer-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gold);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}
.footer-links a:hover::after {
    width: 80%;
}
.footer-info {
    font-size: clamp(0.8rem, 2.5vw, 0.9rem);
    opacity: 0.8;
}
.footer-info p {
    margin: 0.5rem 0;
}

.modal, .cart-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    padding: 1rem;
}

.modal-content, .cart-content {
    background-color: #111;
    padding: clamp(1rem, 5vw, 1.5rem);
    border-radius: 10px;
    width: min(90vw, 500px);
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    color: white;
    box-sizing: border-box;
}

.close-btn {
    position: absolute;
    top: 0.5rem;
    right: 0.75rem;
    cursor: pointer;
    color: var(--gold);
    font-size: clamp(1.2rem, 5vw, 1.5rem);
    padding: 0.25rem;
}

.main-image-container {
    position: relative;
    margin-bottom: 1.5rem;
    border-radius: 12px;
    overflow: hidden;
    background-color: var(--light-gray);
    aspect-ratio: 1/1;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
}
.main-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform 0.3s ease, opacity 0.3s ease;
}
.main-image:hover {
    transform: scale(1.03);
}
.thumbnail-container {
    display: flex;
    gap: 0.8rem;
    padding: 0.5rem 0;
    overflow-x: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--gold) var(--light-gray);
}

.thumbnail {
    width: 70px;
    height: 70px;
    object-fit: cover;
    border-radius: 6px;
    border: 2px solid transparent;
    transition: border-color 0.2s ease, transform 0.2s ease;
    cursor: pointer;
    background-color: #111;
}

.thumbnail:hover {
    border-color: var(--gold);
    transform: scale(1.05);
}

.thumbnail.active {
    border-color: var(--gold);
    box-shadow: 0 0 8px rgba(255, 215, 0, 0.4);
}

.thumbnail-container::-webkit-scrollbar {
    height: 6px;
}
.thumbnail-container::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 3px;
}


.thumbnail.active {
    border-color: var(--accent-secondary);
    box-shadow: 0 4px 12px rgba(255, 215, 0, 0.4);
    transform: translateY(-2px);
}
.thumbnail:focus {
    outline: 2px solid var(--gold);
    outline-offset: 2px;
}

.modal-content select {
    background-color: #222;
    color: #fff;
    border: 2px solid var(--gold);
    border-radius: 4px;
    padding: 0.5rem;
    width: 100%;
    font-size: clamp(0.8rem, 3vw, 0.9rem);
}

.modal-content button, .cart-content button {
    background-color: var(--gold);
    color: var(--black);
    border: none;
    border-radius: 4px;
    padding: 0.75rem 1rem;
    cursor: pointer;
    font-weight: bold;
    font-size: clamp(0.8rem, 3vw, 0.9rem);
    width: 100%;
    transition: background-color 0.3s;
    margin-top: 0.5rem;
}
.modal-content button:hover, .cart-content button:hover {
    background-color: #e6c200;
}

.btn-whatsapp {
    background-color: #25D366;
    color: #fff;
}
.btn-whatsapp:hover {
    background-color: #1DA851;
}

.btn-continue-shopping {
    background-color: var(--gold);
    color: var(--black);
    border: none;
    border-radius: 4px;
    padding: 0.75rem 1rem;
    cursor: pointer;
    font-weight: bold;
    font-size: clamp(0.8rem, 3vw, 0.9rem);
    width: 100%;
    transition: background-color 0.3s;
    margin-top: 1rem;
}
.btn-continue-shopping:hover {
    background-color: #e6c200;
}

.quantity-control {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin: 0.75rem 0;
}
.quantity-control button {
    background-color: var(--gold);
    border: none;
    padding: 0.5rem;
    color: var(--black);
    font-weight: bold;
    cursor: pointer;
    border-radius: 4px;
    font-size: clamp(0.8rem, 3vw, 1rem);
    min-width: 2rem;
}

#category-nav {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    position: fixed;
    top: 60px;
    right: -100%;
    background-color: rgba(17, 17, 17, 0.95);
    width: min(80vw, 250px);
    padding: var(--padding-unit);
    transition: right 0.3s ease;
    z-index: 1000;
    height: calc(100vh - 60px);
}
#category-nav.active {
    right: 0;
}
#category-nav button {
    background-color: #222;
    color: var(--gold);
    border: none;
    padding: 0.75rem;
    font-size: clamp(0.9rem, 3.5vw, 1rem);
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.3s ease;
    text-align: left;
}
#category-nav button:hover {
    background-color: #333;
}

.loading {
    text-align: center;
    padding: var(--padding-unit);
    color: var(--gold);
    font-size: clamp(0.9rem, 3.5vw, 1rem);
}
.error-message {
    color: #ff4444;
    text-align: center;
    padding: var(--padding-unit);
    font-size: clamp(0.9rem, 3.5vw, 1rem);
}

.modal-content .product-item {
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid #333;
}
.modal-content .product-item:last-child {
    margin-bottom: 0;
    border-bottom: none;
}
.modal-content .main-image-container {
    width: 100%;
    margin-bottom: 0.5rem;
}
.modal-content .thumbnail-container {
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}
.modal-content .quantity-control {
    margin: 0.5rem 0;
}

@media (max-width: 480px) {
    :root {
        --font-size-base: 14px;
        --padding-unit: 0.5rem;
    }
    header {
        padding: 0.5rem;
    }
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.5rem;
        padding: 0.5rem;
    }
    .product {
        padding: 0.5rem;
    }
    .product-image-container {
        height: clamp(120px, 35vw, 150px);
    }
    .product p.name {
        font-size: clamp(0.8rem, 3vw, 0.9rem);
    }
    .product p.price {
        font-size: clamp(0.7rem, 2.5vw, 0.8rem);
    }
    .product button {
        padding: 0.3rem 0.6rem;
        font-size: clamp(0.6rem, 2vw, 0.7rem);
    }
    .modal-content, .cart-content {
        width: 95vw;
        padding: 0.75rem;
    }
    .modal-content .product-item {
        padding-bottom: 1rem;
    }
    .footer-content {
        gap: 1rem;
    }
}

@media (max-width: 768px) {
    .menu-icon {
        display: block;
    }
    .search-container {
        margin: 0.5rem;
    }
    .search-container input {
        padding: 0.5rem 2rem 0.5rem 1rem;
    }
}

@media (min-width: 769px) {
    #category-nav {
        flex-direction: row;
        position: static;
        background: rgba(17, 17, 17, 0.7);
        padding: var(--padding-unit);
        gap: 1rem;
        justify-content: center;
        width: 100%;
        height: auto;
    }
    #category-nav button {
        flex: 1;
        text-align: center;
    }
}

@media (min-width: 1200px) {
    .product-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
    .modal-content, .cart-content {
        max-width: 600px;
    }
}