/* Exhibitor Grid Plugin Styles */

.exhibitor-grid {
    margin: 20px 0;
    max-width: 100%;
}

.exhibitor-grid-loading {
    text-align: center;
    padding: 40px 20px;
}

.loading-spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid #3498db;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.exhibitor-grid-error {
    background: #f8d7da;
    color: #721c24;
    padding: 12px 16px;
    border: 1px solid #f5c6cb;
    border-radius: 4px;
    margin: 20px 0;
}

.exhibitors-container {
    display: grid;
    gap: 20px;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    margin-top: 20px;
}

/* Column-specific layouts */
.exhibitors-container.columns-1 {
    grid-template-columns: 1fr;
}

.exhibitors-container.columns-2 {
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.exhibitors-container.columns-3 {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.exhibitors-container.columns-4 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.exhibitors-container.columns-5 {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.exhibitor-card {
    background: #ffffff;
    border: 1px solid #e1e5e9;
    border-radius: 8px;
    padding: 20px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.exhibitor-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.exhibitor-logo {
    display: flex;
    justify-content: center;
    margin-bottom: 15px;
    min-height: 80px;
    align-items: center;
}

.exhibitor-logo img {
    max-width: 100%;
    max-height: 80px;
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: 4px;
}

.exhibitor-logo .no-logo {
    width: 80px;
    height: 80px;
    background: #f8f9fa;
    border: 2px dashed #dee2e6;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #6c757d;
    font-size: 12px;
    text-align: center;
}

.exhibitor-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0 0 10px 0;
    color: #333;
    text-align: center;
    line-height: 1.3;
}

.exhibitor-description {
    color: #666;
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: 15px;
    flex-grow: 1;
    text-align: center;
}

.exhibitor-category {
    background: #e9ecef;
    color: #495057;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 0.8rem;
    text-align: center;
    margin-bottom: 15px;
    display: inline-block;
    width: fit-content;
    margin-left: auto;
    margin-right: auto;
}

.exhibitor-social {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: auto;
    padding-top: 15px;
    border-top: 1px solid #e9ecef;
}

.social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    text-decoration: none;
    transition: transform 0.2s ease, background-color 0.2s ease;
    font-size: 16px;
    color: #ffffff;
}

.social-link:hover {
    transform: scale(1.1);
    text-decoration: none;
}

/* Social platform specific colors */
.social-link.facebook { background-color: #1877f2; }
.social-link.twitter { background-color: #1da1f2; }
.social-link.instagram { background-color: #e4405f; }
.social-link.linkedin { background-color: #0077b5; }
.social-link.youtube { background-color: #ff0000; }
.social-link.website { background-color: #28a745; }
.social-link.email { background-color: #6c757d; }
.social-link.default { background-color: #495057; }

/* Responsive breakpoints */
@media (max-width: 768px) {
    .exhibitors-container {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .exhibitor-card {
        padding: 15px;
    }

    .exhibitor-title {
        font-size: 1.1rem;
    }

    .exhibitor-logo {
        min-height: 60px;
    }

    .exhibitor-logo img {
        max-height: 60px;
    }
}

@media (max-width: 480px) {
    .exhibitor-grid {
        margin: 15px 0;
    }

    .exhibitors-container {
        gap: 12px;
    }

    .exhibitor-card {
        padding: 12px;
    }

    .exhibitor-social {
        gap: 8px;
    }

    .social-link {
        width: 32px;
        height: 32px;
        font-size: 14px;
    }
}

/* Loading state for individual cards */
.exhibitor-card.loading {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading-shimmer 1.5s infinite;
}

@keyframes loading-shimmer {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

/* Empty state */
.exhibitor-grid-empty {
    text-align: center;
    padding: 40px 20px;
    color: #6c757d;
    background: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: 8px;
}

.exhibitor-grid-empty h3 {
    margin: 0 0 10px 0;
    color: #495057;
}

/* Accessibility improvements */
.exhibitor-card:focus {
    outline: 2px solid #007cba;
    outline-offset: 2px;
}

.social-link:focus {
    outline: 2px solid #ffffff;
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .exhibitor-card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #000;
    }

    .social-link {
        color: #000 !important;
        background: transparent !important;
        border: 1px solid #000;
    }
}