:root {
    --bg-color: #ffffff;
    --text-color: #24292e;
    --link-color: #0366d6;
    --link-hover: #0056b3;
    --border-color: #e1e4e8;
    --row-hover: #f6f8fa;
    --header-text: #586069;
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --mono-font: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}

body {
    font-family: var(--font-family);
    color: var(--text-color);
    background-color: var(--bg-color);
    margin: 0;
    padding: 40px;
    line-height: 1.5;
}

h1 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-top: 0;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
}

table {
    width: 100%;
    max-width: 1200px;
    border-collapse: collapse;
    text-align: left;
}

th, td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
}

th {
    font-weight: 600;
    color: var(--header-text);
    font-size: 0.9rem;
}

tr {
    transition: background-color 0.15s ease;
}

tr:hover {
    background-color: var(--row-hover);
}

a {
    color: var(--link-color);
    text-decoration: none;
    font-weight: 500;
}

a:hover {
    color: var(--link-hover);
    text-decoration: underline;
}

.icon {
    width: 24px;
    text-align: center;
    color: #6a737d;
    padding-right: 8px;
}

.icon svg {
    width: 16px;
    height: 16px;
    fill: currentColor;
    vertical-align: text-bottom;
}

.mono-col {
    color: var(--header-text);
    font-family: var(--mono-font);
    font-size: 0.9em;
}

.status-col { 
    font-weight: bold;
    font-size: 0.85em;
}

.status-checking { color: #6a737d; }
.status-online { color: #28a745; }
.status-offline { color: #cb2431; }

.desc-col { color: var(--header-text); font-size: 0.95em; }

address {
    margin-top: 30px;
    font-size: 0.85rem;
    color: var(--header-text);
    font-style: normal;
}

@media (max-width: 768px) {
    body { padding: 20px; }
    .date-col, .desc-col { display: none; }
    .corner-image {
        max-width: 55vw;
        max-height: 40vh;
        right: 10px;
    }
}

.corner-image {
    position: fixed;
    bottom: 0;
    right: 20px;
    /* Tăng kích thước ảnh to hơn */
    max-width: 45vw;      
    max-height: 65vh;     
    /* Giữ nguyên scale (tỷ lệ gốc) */
    width: auto;          
    height: auto;         
    object-fit: contain;  
    z-index: 1000;
    /* Cho phép click xuyên qua ảnh để không cản trở thao tác trên bảng */
    pointer-events: none; 
    filter: drop-shadow(0 10px 15px rgba(0,0,0,0.15));
}