:root {
    --primary-color: #111;
    --accent-color: #ff4500;
    --text-color: #4a4a4a;
    --light-bg: #f4f6f8;
    --border-color: #e0e0e0;
    --white: #ffffff;
    --shadow: 0 5px 15px rgba(0,0,0,0.08);
}

* { box-sizing: border-box; }

body { 
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; 
    margin: 0; 
    padding: 0; 
    color: var(--text-color); 
    line-height: 1.6; 
    background-color: #f8f9fa;
}

a { color: inherit; text-decoration: none; transition: 0.3s; }
img { max-width: 100%; height: auto; display: block; }
[v-cloak] { display: none !important; }

/* Buttons */
.btn-v8a { 
    display: inline-block; 
    padding: 12px 25px; 
    background: var(--primary-color); 
    color: var(--white); 
    border: none; 
    cursor: pointer; 
    transition: 0.3s; 
    text-align: center; 
    font-weight: 600;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.btn-v8a:hover { 
    background: var(--accent-color); 
    transform: translateY(-2px);
}
.btn-block-v8a { display: block; width: 100%; }

/* Product Grid */
.product-grid-v8a { 
    display: grid; 
    grid-template-columns: repeat(4, 1fr); 
    gap: 30px; 
    padding: 40px 0; 
}
.product-card-v8a { 
    background: var(--white);
    border: 1px solid transparent;
    transition: all 0.4s ease; 
    position: relative; 
    display: flex; 
    flex-direction: column;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}
.product-card-v8a:hover { 
    box-shadow: 0 20px 40px rgba(0,0,0,0.12); 
    transform: translateY(-8px);
    border-color: #f0f0f0;
}
.product-img-v8a { 
    width: 100%; 
    aspect-ratio: 1; 
    object-fit: cover; 
    background: #f8f9fa; 
    transition: transform 0.5s ease;
}
.product-card-v8a:hover .product-img-v8a {
    transform: scale(1.05);
}
.product-info-v8a { 
    padding: 25px; 
    flex-grow: 1; 
    display: flex; 
    flex-direction: column; 
    background: #fff;
    position: relative;
    z-index: 2;
}
.product-title-v8a { 
    font-size: 16px; 
    margin: 0 0 10px; 
    font-weight: 600; 
    flex-grow: 1; 
    line-height: 1.4;
}
.product-title-v8a a { color: var(--primary-color); }
.product-title-v8a a:hover { color: var(--accent-color); }
.product-price-v8a { 
    font-weight: 800; 
    color: var(--accent-color); 
    font-size: 20px; 
    margin-bottom: 20px; 
}
.product-card-v8a .btn-v8a {
    border-radius: 50px;
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    padding: 10px 20px;
}
.product-card-v8a:hover .btn-v8a {
    background-color: var(--primary-color);
    color: var(--white);
}

/* Pagination */
.pagination-v8a { 
    display: flex; 
    justify-content: center; 
    gap: 10px; 
    margin-top: 60px; 
    margin-bottom: 80px; 
}
.page-item-v8a { 
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none; 
    cursor: pointer; 
    background: var(--white);
    border-radius: 50%;
    transition: all 0.3s ease;
    box-shadow: 0 4px 10px rgba(0,0,0,0.05);
    font-weight: 600;
    font-size: 16px;
    color: var(--text-color);
}
.page-item-v8a:hover { 
    color: var(--accent-color); 
    transform: translateY(-3px);
    box-shadow: 0 8px 15px rgba(0,0,0,0.1);
}
.page-item-v8a.active { 
    background: var(--accent-color); 
    color: var(--white); 
    box-shadow: 0 8px 20px rgba(231, 76, 60, 0.3);
}

/* Detail Page */
.detail-container-v8a { 
    display: grid; 
    grid-template-columns: 1fr 1fr; 
    gap: 60px; 
    padding: 60px 0; 
}
.gallery-v8a { display: flex; flex-direction: column; gap: 15px; }
.main-img-v8a { 
    width: 100%; 
    border-radius: 8px;
    box-shadow: var(--shadow);
}
.thumbs-v8a { display: flex; gap: 15px; overflow-x: auto; padding-bottom: 10px; }
.thumb-v8a { 
    width: 90px; 
    height: 90px; 
    object-fit: cover; 
    border: 2px solid transparent; 
    cursor: pointer; 
    border-radius: 4px;
    transition: 0.3s;
}
.thumb-v8a:hover, .thumb-v8a.active { border-color: var(--accent-color); }

.product-meta-v8a h1 { 
    margin-top: 0; 
    font-size: 32px; 
    color: var(--primary-color);
}
.price-tag-v8a { 
    font-size: 28px; 
    color: var(--accent-color); 
    font-weight: 800; 
    margin: 20px 0; 
}
.features-v8a { 
    list-style: none; 
    padding: 0; 
    color: #555; 
    margin-bottom: 30px; 
}
.features-v8a li {
    padding: 5px 0;
    border-bottom: 1px solid #eee;
}
.features-v8a li:last-child { border-bottom: none; }

.qty-input-v8a { 
    padding: 12px; 
    width: 70px; 
    text-align: center; 
    border: 1px solid var(--border-color); 
    margin-right: 15px; 
    border-radius: 4px;
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 50px;
}
.section-title {
    font-size: 36px;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}
.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: var(--accent-color);
    margin: 10px auto 0;
}
.section-desc { color: #7f8c8d; font-size: 16px; }
.desc-content-v8a { 
    margin-top: 60px; 
    background: var(--white);
    padding: 40px;
    border-radius: 8px;
    box-shadow: var(--shadow);
}
.desc-content-v8a img { max-width: 100% !important; height: auto !important; border-radius: 4px; }
.desc-content-v8a table { width: 100%; border-collapse: collapse; margin: 20px 0; }
.desc-content-v8a td { border: 1px solid #eee; padding: 12px; }

/* Cart */
.cart-table-v8a { 
    width: 100%; 
    border-collapse: collapse; 
    margin-bottom: 40px; 
    background: var(--white);
    box-shadow: var(--shadow);
    border-radius: 8px;
    overflow: hidden;
}
.cart-table-v8a th { 
    text-align: left; 
    padding: 20px; 
    background: var(--light-bg); 
    font-weight: 600;
}
.cart-table-v8a td { 
    padding: 20px; 
    border-bottom: 1px solid #eee; 
}
.cart-summary-v8a { 
    max-width: 350px; 
    margin-left: auto; 
    background: var(--white); 
    padding: 30px; 
    border-radius: 8px;
    box-shadow: var(--shadow);
}
.summary-row-v8a { 
    display: flex; 
    justify-content: space-between; 
    margin-bottom: 20px; 
    font-weight: 600; 
    font-size: 16px;
}

/* Contact */
.contact-container-v8a { 
    max-width: 800px; 
    margin: 60px auto; 
    padding: 50px; 
    background: var(--white);
    border-radius: 8px;
    box-shadow: var(--shadow);
}
.form-group-v8a { margin-bottom: 25px; }
.form-group-v8a label { 
    display: block; 
    margin-bottom: 8px; 
    font-weight: 600; 
    color: var(--primary-color);
}
.form-control-v8a { 
    width: 100%; 
    padding: 12px; 
    border: 1px solid var(--border-color); 
    border-radius: 4px; 
    font-size: 16px;
    transition: 0.3s;
}
.form-control-v8a:focus { 
    border-color: var(--primary-color); 
    outline: none; 
    box-shadow: 0 0 0 3px rgba(44, 62, 80, 0.1);
}
textarea.form-control-v8a { resize: vertical; min-height: 150px; }

/* Toast */
.toast-v8a { 
    position: fixed; 
    bottom: 30px; 
    right: 30px; 
    background: var(--primary-color); 
    color: var(--white); 
    padding: 15px 30px; 
    border-radius: 4px; 
    opacity: 0; 
    transition: 0.3s; 
    transform: translateY(20px); 
    z-index: 1000; 
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}
.toast-v8a.show { opacity: 1; transform: translateY(0); }

/* Responsive */
@media (max-width: 1024px) { 
    .product-grid-v8a { grid-template-columns: repeat(3, 1fr); gap: 20px; } 
}
@media (max-width: 768px) { 
    .product-grid-v8a { grid-template-columns: repeat(2, 1fr); } 
    .detail-container-v8a { grid-template-columns: 1fr; gap: 30px; }
    .contact-container-v8a { padding: 30px; margin: 30px 20px; }
}
@media (max-width: 480px) { .product-grid-v8a { grid-template-columns: 1fr; } }