body, html {
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial;
    height: 100%;
}

.layout {
    display: flex;
    height: 100%;
}

/* Sidebar */
.sidebar {
    width: 250px;
    background-color: #333744;
    color: #fff;
    display: flex;
    flex-direction: column;
}

.logo {
    padding: 20px;
    font-size: 20px;
    font-weight: bold;
    border-bottom: 1px solid #444;
    text-align: center;
}

nav ul {
    list-style: none;
    padding: 0;
}

nav li {
    padding: 15px 20px;
    cursor: pointer;
    border-bottom: 1px solid #444;
}

nav li.active {
    background-color: #2b2e39;
}

/* Main Content */
.content {
    flex: 1;
    display: flex;
    flex-direction: column;
    background-color: #f4f6f9;
}

.header {
    background-color: #333;
    padding: 10px 20px;
    color: #fff;
    display: flex;
    justify-content: flex-end;
    align-items: center;
}

.expire-time {
    margin-right: auto;
    margin-left: 20px;
}

.logout-btn {
    background-color: #fff;
    color: #333;
    border: none;
    padding: 5px 15px;
    cursor: pointer;
    border-radius: 4px;
}

/* Table Container */
.table-container {
    padding: 20px;
    flex: 1;
    overflow-y: auto;
}

.search-bar {
    background-color: #fff;
    padding: 15px 20px;
    margin-bottom: 20px;
    border-radius: 4px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
}

.search-btn { background-color: #409eff; color: white; border: none; padding: 8px 15px; border-radius: 4px; cursor: pointer; }
.clear-btn { background-color: #f56c6c; color: white; border: none; padding: 8px 15px; border-radius: 4px; cursor: pointer; }

/* Pagination Styles */
.pagination-controls {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: #666;
}

.pagination-controls select {
    padding: 5px;
    border-radius: 4px;
    border: 1px solid #ddd;
}

.page-btn {
    padding: 5px 12px;
    border: 1px solid #dcdfe6;
    background: #fff;
    cursor: pointer;
    border-radius: 4px;
}

.page-btn:disabled {
    background: #f5f7fa;
    color: #c0c4cc;
    cursor: not-allowed;
}

.page-btn:not(:disabled):hover {
    color: #409eff;
    border-color: #c0c4cc;
}

table {
    width: 100%;
    border-collapse: collapse;
    background-color: #fff;
    border-radius: 4px;
}

th, td {
    border: 1px solid #eee;
    padding: 12px;
    text-align: left;
}

th {
    background-color: #fafafa;
    font-weight: bold;
}

.tag {
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    color: white;
}
.tag-list { background-color: #e6a23c; }

.download-link {
    color: #409eff;
    text-decoration: none;
    font-weight: bold;
}
.download-link:hover { text-decoration: underline; }