:root {
    --primary-color: #2196F3;
    --background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    --card-bg: rgba(255, 255, 255, 0.95);
}

body {
    font-family: 'Segoe UI', system-ui, sans-serif;
    margin: 0;
    padding: 20px;
    background: var(--background);
    min-height: 100vh;
}

.header {
    text-align: center;
    margin-bottom: 2rem;
}

.search-box {
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    gap: 10px;
}

.search-box input {
    flex: 1;
    padding: 12px;
    border: 2px solid var(--primary-color);
    border-radius: 25px;
    font-size: 16px;
}

.search-box button {
    padding: 12px 24px;
    background: var(--primary-color);
    border: none;
    border-radius: 25px;
    color: white;
    cursor: pointer;
    transition: transform 0.2s;
}

.card-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.site-card {
    background: var(--card-bg);
    border-radius: 15px;
    padding: 1.2rem;
    text-decoration: none;
    color: #333;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: 
        transform 0.3s ease,
        box-shadow 0.3s ease;
    backdrop-filter: blur(10px);
}

.site-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.2);
}

.card-inner {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.site-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    object-fit: contain;
}

.card-content h3 {
    margin: 0;
    color: var(--primary-color);
    font-weight: 600;
}

.card-content p {
    margin: 8px 0;
    color: #666;
    font-size: 0.9em;
}

.ping-status {
    display: flex;
    align-items: center;
    gap: 8px;
}

.ping-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #ddd;
}

.ping-value {
    font-size: 0.85em;
    color: #777;
}

@media (max-width: 600px) {
    .card-container {
        grid-template-columns: 1fr;
    }
    
    .search-box {
        flex-direction: column;
    }
}