:root {
    --primary-color: #3498db;
    --secondary-color: #2980b9;
    --light-gray: #f9f9f9;
    --border-color: #ddd;
    --text-color: #333;
    --success-color: #2ecc71;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    color: var(--text-color);
    background-color: #f5f5f5;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.header-container {
    display: flex;
    flex-direction: column;
    flex-md-row: row;
    align-items: center;
    margin-bottom: 2rem;
    background-color: white;
    padding: 1.5rem;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.logo-container {
    margin-bottom: 1rem;
    margin-right: 2rem;
}

.logo {
    max-height: 100px;
    filter: grayscale(1) brightness(0);
}

.title-container {
    flex-grow: 1;
    text-align: center;
}

h1 {
    margin: 0;
    font-size: 2rem;
    color: var(--text-color);
}

.search-container {
    background-color: white;
    padding: 1.5rem;
    border-radius: 5px;
    margin-bottom: 2rem;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.search-form {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.form-group {
    margin-bottom: 0;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

input, select {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
    height: 38px;
    box-sizing: border-box;
}

.btn-container {
    display: flex;
    gap: 1rem;
    margin-top: 0;
    justify-content: flex-end;
    align-items: flex-end;
    grid-column: -2 / -1;
}

button {
    padding: 0.5rem 0.75rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: background-color 0.2s;
    height: 38px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    box-sizing: border-box;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
    width: 100%;
}

.btn-primary:hover {
    background-color: var(--secondary-color);
}

.btn-secondary {
    background-color: #e0e0e0;
    color: var(--text-color);
    width: 100%;
}

.btn-secondary:hover {
    background-color: #d0d0d0;
}

.results-container {
    background-color: white;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    overflow: hidden;
    margin-bottom: 20px;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: 0;
}

th, td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid #dee2e6;
}

th {
    background-color: #f8f9fa;
    font-weight: 600;
    cursor: pointer;
    position: relative;
    padding-right: 30px;
}

th:hover {
    background-color: #f0f0f0;
}

th.asc::after, th.desc::after {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
}

tr:nth-child(even) {
    background-color: var(--light-gray);
}

tr:hover {
    background-color: #f8f9fa;
}

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 2rem;
    gap: 0.5rem;
}

.pagination button {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    background-color: white;
    cursor: pointer;
}

.pagination button:hover {
    background-color: var(--light-gray);
}

.pagination button.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.pagination-info {
    margin: 0 1rem;
}

.no-results {
    padding: 2rem;
    text-align: center;
    color: #666;
}

.highlight {
    background-color: #ffeb3b;
    padding: 0 2px;
    border-radius: 2px;
}

.results-info {
    background-color: #f8f9fa;
    padding: 15px;
    border-radius: 4px;
    margin: 15px;
    color: #495057;
    font-size: 14px;
    border: 1px solid #dee2e6;
}

@media (max-width: 768px) {
    .search-form {
        grid-template-columns: 1fr;
    }
    
    .btn-container {
        display: grid;
        grid-template-columns: 1fr 1fr;
        width: 100%;
        gap: 0.5rem;
        grid-column: auto;
        margin-top: 1rem;
    }
    
    button {
        width: 100%;
        font-size: 0.85rem;
        padding: 0.5rem 0.5rem;
    }
    
    .pagination {
        flex-wrap: wrap;
    }
    
    .header-container {
        flex-direction: column;
    }
    
    .logo-container {
        margin-right: 0;
        margin-bottom: 1rem;
    }
    
    th, td {
        padding: 0.5rem;
        font-size: 0.9rem;
    }
    
    th {
        padding-right: 25px;
    }
    
    table th:nth-child(2), 
    table td:nth-child(2) {
        width: 80px;
        min-width: 80px;
        max-width: 80px;
    }
    
    .page-jump {
        width: 100%;
        margin-top: 10px;
        display: flex;
        justify-content: center;
    }
    
    .page-jump form {
        width: 100%;
        justify-content: center;
    }
    
    .page-jump button {
        width: auto;
    }
}

@media (max-width: 480px) {
    .pagination button {
        padding: 0.4rem 0.6rem;
        font-size: 0.9rem;
    }
    
    .pagination-info {
        width: 100%;
        text-align: center;
        margin: 0.5rem 0;
    }
}