/* Info Grid */
.premium-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 15px;
    margin-top: 1.5rem;
}

.premium-info-card {
    background: #f8f9fa;
    border: 1px solid #eef0f2;
    border-radius: 10px;
    padding: 12px 15px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: all 0.3s ease;
}

.premium-info-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    border-color: #dce1e6;
}

.premium-info-card i {
    font-size: 1.25rem;
    color: #555;
    margin-bottom: 8px;
}

.premium-info-card .info-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: #888;
    margin-bottom: 3px;
}

.premium-info-card .info-value {
    font-size: 0.95rem;
    font-weight: 600;
    color: #222;
}

/* Tech Specs */
.glass-panel {
    background: #ffffff;
    border-radius: 16px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.04);
    border: 1px solid rgba(0, 0, 0, 0.03);
    padding: 40px;
    position: relative;
    overflow: hidden;
}

.glass-panel::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color, #e4392b), #f56c62);
}

.tech-list-item {
    display: flex;
    align-items: flex-start;
    padding: 12px 0;
    border-bottom: 1px dashed #eaeaea;
}

.tech-list-item:last-child {
    border-bottom: none;
}

.tech-icon-wrapper {
    background: #fdf5f4;
    color: var(--primary-color, #e4392b);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 15px;
    flex-shrink: 0;
    font-size: 0.9rem;
}

/* Clean Accordion */
.clean-accordion .card {
    border: none;
    border-bottom: 1px solid #eee;
    border-radius: 0;
    margin-bottom: 0 !important;
    background: transparent;
}

.clean-accordion .card:last-child {
    border-bottom: none;
}

.clean-accordion .card-header {
    background: transparent;
    padding: 0;
    border: none;
}

.clean-accordion .btn-link {
    text-decoration: none;
    color: #333;
    font-weight: 600;
    font-size: 1.05rem;
    padding: 1.25rem 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    transition: color 0.2s;
}

.clean-accordion .btn-link:focus {
    outline: none;
    box-shadow: none;
}

.clean-accordion .btn-link:hover,
.clean-accordion .btn-link[aria-expanded="true"] {
    color: var(--primary-color, #e4392b);
    background: var(--bs-gray-300);
    border: none;
}

.clean-accordion .btn-link i.toggle-icon {
    transition: transform 0.3s ease;
    color: #999;
    font-size: 0.85rem;
}

.clean-accordion .btn-link[aria-expanded="true"] i.toggle-icon {
    transform: rotate(180deg);
    color: var(--primary-color, #e4392b);
}

.clean-accordion .card-body {
    padding: 0 0 1.5rem 0;
    color: #666;
    line-height: 1.7;
    font-size: 0.95rem;
}

@media (max-width: 991px) {
    .glass-panel {
        padding: 25px;
    }

    .col-lg-6.pl-lg-4 {
        border-left: none !important;
        border-top: 1px solid #eee;
        padding-top: 30px;
        margin-top: 30px;
    }
}

/* ── Stock-out banner ─────────────────── */
.stock-out-banner {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    border-radius: 10px;
    background: rgba(234, 28, 38, 0.06);
    border: 1px solid rgba(234, 28, 38, 0.2);
    border-left: 4px solid #ea1c26;
    margin-top: 8px;
}

.stock-out-banner > .fa {
    font-size: 1.8rem;
    color: #ea1c26;
    flex-shrink: 0;
}

.stock-out-banner > div {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.stock-out-banner strong {
    font-size: 0.95rem;
    color: #c0121b;
    font-weight: 700;
}

.stock-out-banner span {
    font-size: 0.82rem;
    color: #666;
    line-height: 1.4;
}