.placeholder-icon {
    width: 80px;
    height: 80px;
    color: rgba(0, 102, 204, 0.2);
}
.placeholder-icon-lg {
    width: 120px;
    height: 120px;
}
.placeholder-icon-sm {
    width: 48px;
    height: 48px;
}
.product-image-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    color: #94a3b8;
    gap: 1rem;
    padding: 2rem;
}
.product-image-placeholder svg {
    width: 80px;
    height: 80px;
    color: #cbd5e1;
}
.product-image-placeholder span {
    font-size: 0.875rem;
    font-weight: 500;
    color: #94a3b8;
}
.certificate-thumb-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
}
.certificate-thumb-placeholder svg {
    width: 64px;
    height: 64px;
    color: #0ea5e9;
    opacity: 0.4;
}
.placeholder-img {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
}
.placeholder-img svg {
    width: 64px;
    height: 64px;
    color: #f59e0b;
    opacity: 0.5;
}
.catalog-card-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    background: linear-gradient(135deg, #f5f3ff 0%, #ede9fe 100%);
}
.catalog-card-placeholder svg {
    width: 64px;
    height: 64px;
    color: #8b5cf6;
    opacity: 0.4;
}
.icon-product {
}
.icon-certificate {
}
.icon-document {
}
.icon-xs {
    width: 12px;
    height: 12px;
}
.icon-sm {
    width: 16px;
    height: 16px;
}
.icon-md {
    width: 20px;
    height: 20px;
}
.icon-lg {
    width: 24px;
    height: 24px;
}
.icon-xl {
    width: 32px;
    height: 32px;
}
.icon-2xl {
    width: 48px;
    height: 48px;
}
.icon-3xl {
    width: 64px;
    height: 64px;
}
.icon-primary {
    color: #0066CC;
}
.icon-secondary {
    color: #64748b;
}
.icon-success {
    color: #10b981;
}
.icon-warning {
    color: #f59e0b;
}
.icon-danger {
    color: #ef4444;
}
.icon-info {
    color: #0ea5e9;
}
.icon-muted {
    color: #94a3b8;
}
.icon-spin {
    animation: icon-spin 1s linear infinite;
}
@keyframes icon-spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}
.icon-pulse {
    animation: icon-pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}
@keyframes icon-pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}
.icon-bounce {
    animation: icon-bounce 1s infinite;
}
@keyframes icon-bounce {
    0%, 100% {
        transform: translateY(-25%);
        animation-timing-function: cubic-bezier(0.8, 0, 1, 1);
    }
    50% {
        transform: translateY(0);
        animation-timing-function: cubic-bezier(0, 0, 0.2, 1);
    }
}
.icon-box {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    padding: 0.5rem;
}
.icon-box-sm {
    width: 32px;
    height: 32px;
    padding: 0.375rem;
}
.icon-box-md {
    width: 40px;
    height: 40px;
    padding: 0.5rem;
}
.icon-box-lg {
    width: 48px;
    height: 48px;
    padding: 0.625rem;
}
.icon-box-primary {
    background: rgba(0, 102, 204, 0.1);
    color: #0066CC;
}
.icon-box-success {
    background: rgba(16, 185, 129, 0.1);
    color: #10b981;
}
.icon-box-warning {
    background: rgba(245, 158, 11, 0.1);
    color: #f59e0b;
}
.icon-box-info {
    background: rgba(14, 165, 233, 0.1);
    color: #0ea5e9;
}
@media (max-width: 768px) {
    .placeholder-icon {
        width: 64px;
        height: 64px;
    }
    .placeholder-icon-lg {
        width: 96px;
        height: 96px;
    }
    .product-image-placeholder svg {
        width: 64px;
        height: 64px;
    }
}