body {
    background: radial-gradient(circle at top right, #111827, #0b0e14);
    background-attachment: fixed;
    color: #f3f4f6;
    font-family: 'Jost', sans-serif;
}
#titlesectiona {
    padding: 80px 0 40px;
    text-align: center;
}
#titlesectiona h1 {
    font-family: 'Bebas Neue', sans-serif;
    font-size: clamp(3rem, 7vw, 5rem);
    letter-spacing: 5px;
    color: white;
    text-shadow: 0 0 20px rgba(43, 87, 255, 0.4);
}
.blue-dash {
    width: 100px;
    height: 4px;
    background-color: #2b57ff;
    margin: 20px auto;
    border-radius: 2px;
    box-shadow: 0 0 15px #2b57ff;
}
.glass-sidebar {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    position: sticky;
    top: 110px;
    transition: all 0.3s ease;
}
.filter-section { margin-bottom: 40px; }
.section-title {
    display: block;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: #6b7280;
    margin-bottom: 15px;
}
.search-field {
    display: flex;
    align-items: center;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 10px 15px;
}
.search-field input {
    background: transparent;
    border: none;
    color: white;
    margin-left: 10px;
    outline: none;
    font-size: 0.9rem;
    width: 100%;
}
.brand-selector {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.brand-item {
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    color: #9ca3af;
    font-size: 0.9rem;
    transition: 0.2s;
}
.brand-item:hover, .brand-item.active {
    color: #2563eb;
}
.price-indicator {
    color: #2563eb;
    font-weight: 700;
    font-size: 0.9rem;
}
.product-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 24px;
    padding: 12px;
    height: 100%;
    display: flex;
    flex-direction: column;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.product-card:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(37, 99, 235, 0.3);
    transform: translateY(-8px);
}
.card-img-box {
    width: 100%;
    aspect-ratio: 1 / 1;
    background: #0f172a;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    margin-bottom: 15px;
}
.card-img-box img {
    width: 80%;
    height: 80%;
    object-fit: contain;
    transition: transform 0.6s ease;
}
.product-card:hover img {
    transform: scale(1.1);
}
.p-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: #ffffff;
    margin: 0 0 4px 5px;
}
.p-brand {
    font-size: 0.8rem;
    color: #2563eb;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-left: 5px;
}
.p-price {
    font-size: 1.25rem;
    font-weight: 700;
    color: #ffffff;
    margin: 15px 0 15px 5px;
}
.btn-row {
    display: flex;
    gap: 8px;
    margin-top: auto;
}
.btn-details {
    flex: 1;
    background: rgba(255, 255, 255, 0.05);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
    padding: 12px;
    transition: 0.3s;
}
.btn-details:hover {
    background: rgba(255, 255, 255, 0.1);
}
.details-qty-pill {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: #0f172a;
    border-radius: 15px;
    padding: 10px 25px;
    width: 100%;
    max-width: 250px;
    height: 60px;
    margin: 0 auto;
    border: 1px solid rgba(255, 255, 255, 0.05);
}
.details-qty-pill button {
    background: none;
    border: none;
    color: white;
    font-size: 24px;
    font-weight: 300;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s ease, color 0.2s ease;
    padding: 0 10px;
}
.details-qty-pill button:hover {
    color: #2563eb;
    transform: scale(1.2);
}
.details-qty-num {
    color: white;
    font-size: 22px;
    font-weight: 700;
    font-family: 'Jost', sans-serif;
    user-select: none;
}
.btn-cart {
    width: 45px;
    height: 45px;
    background: #2563eb;
    color: white;
    border: none;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: 0.3s;
}
.btn-cart:disabled {
    background: #d81d1d;
}
.btn-cart:hover:not(:disabled) {
    background: #1d4ed8;
    box-shadow: 0 0 15px rgba(37, 99, 235, 0.4);
}
.card-qty-control {
    display: flex;
    align-items: center;
    background: rgba(37, 99, 235, 0.1);
    border: 1px solid #2563eb;
    border-radius: 12px;
    padding: 2px 8px;
    gap: 10px;
    height: 45px;
}
.card-qty-btn {
    background: none;
    border: none;
    color: #2563eb;
    cursor: pointer;
    font-size: 1.1rem;
    padding: 0 5px;
    transition: 0.2s;
}
.card-qty-btn:hover {
    transform: scale(1.3);
}
.card-qty-num {
    font-weight: bold;
    color: white;
    min-width: 20px;
    text-align: center;
}
.filter-fab {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 55px;
    height: 55px;
    background: #2563eb;
    color: white;
    border: none;
    border-radius: 16px;
    z-index: 1000;
    box-shadow: 0 10px 20px rgba(0,0,0,0.3);
}
@media (max-width: 991px) {
    #filterSidebar {
        position: fixed; top: 0; left: -100%; width: 100%; height: 100%;
        background: #0b0e14; z-index: 2000; transition: 0.3s;
    }
    #filterSidebar.active { left: 0; }
}
.premium-range {
    width: 100%;
    accent-color: #2563eb;
}
.reset-link {
    background: none; border: solid 2px #f44336; border-radius: 10px; color: #fff; font-weight: bold; background-color: #f44336;  font-size: 0.75rem; 
    width: 100%; margin-top: 10px; cursor: pointer; transition: 0.3s ease-in-out ;
}
.reset-link:hover {
    box-shadow: 0px 0px 20px 1px #f2574b;
    background: none; 
    border: solid 2px #f2574b; 
    border-radius: 10px; 
    color: #fff; 
    background-color: #f2574b;
}
.details-overlay {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: radial-gradient(circle at center, #111827, #0b0e14);
    z-index: 2000;
    overflow-y: auto;
    padding-top: 80px;
}
.details-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 32px;
    overflow: hidden;
    backdrop-filter: blur(20px);
}
.details-img-container {
    background: #0f172a;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
}
.details-img-container img {
    max-width: 100%;
    max-height: 500px;
    object-fit: contain;
    filter: drop-shadow(0 20px 50px rgba(0,0,0,0.5));
}
.back-to-catalog {
    background: none; border: none; color: #6b7280;
    font-size: 0.9rem; font-weight: 600; cursor: pointer;
    margin-bottom: 20px; transition: 0.3s;
    display: flex; align-items: center; gap: 10px;
}
.back-to-catalog:hover { color: #2563eb; }
.stock-status { font-weight: 700; font-size: 0.9rem; text-transform: uppercase; }
.in-stock { color: #22c55e; }
.out-of-stock { color: #ef4444; }
.btn-cart-lg {
    background: #2563eb;
    color: white; border: none; border-radius: 16px;
    padding: 18px; font-weight: 700; font-size: 1.1rem;
    transition: 0.3s;
}
.btn-cart-lgd {
    background: #d81d1d;
    color: white; border: none; border-radius: 16px;
    padding: 18px; font-weight: 700; font-size: 1.1rem;
}
.btn-cart-lg:hover:not(:disabled) {
    background: #1d4ed8;
    box-shadow: 0 0 30px rgba(37, 99, 235, 0.4);
    transform: translateY(-2px);
}