* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #f5f5f5;
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    background: white;
    border-radius: 10px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    overflow: hidden;
}

header {
    background: #2c3e50;
    color: white;
    padding: 30px;
    text-align: center;
    border-bottom: 4px solid #3498db;
}

.logo {
    max-width: 200px;
    max-height: 80px;
    margin-bottom: 15px;
    object-fit: contain;
}

header h1 {
    font-size: 2em;
    margin-bottom: 10px;
}

header p {
    font-size: 1.1em;
    opacity: 0.9;
}

main {
    padding: 30px;
}

.search-section {
    margin-bottom: 30px;
}

.search-section h2 {
    color: #333;
    margin-bottom: 20px;
}

.search-box {
    display: flex;
    gap: 10px;
}

#mitgliedsnummer {
    flex: 1;
    padding: 12px 20px;
    font-size: 16px;
    border: 2px solid #ddd;
    border-radius: 5px;
    transition: border-color 0.3s;
}

#mitgliedsnummer:focus {
    outline: none;3498db;
}

button {
    padding: 12px 30px;
    font-size: 16px;
    background: #3498db;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s, background-color 0.2s;
}

button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(52, 152, 219, 0.3);
    background: #2980b9
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

button:active {
    transform: translateY(0);
}

.results-section {
    margin-top: 30px;
}

.results-section h2 {
    color: #333;
    margin-bottom: 15px;
}

#resultInfo {
    background: #e8f5e9;
    padding: 15px;
    border-radius: 5px;
    margin-bottom: 20px;
    color: #2e7d32;
    font-weight: 500;
}

.table-container {
    overflow-x: auto;
    border-radius: 5px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

table {
    width: 100%;
    border-collapse: collapse;
    background: white;
}

thead {#34495e
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

th, td {
    padding: 15px;
    text-align: left;
}

th {
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.9em;
    letter-spacing: 0.5px;
}

tbody tr {
    border-bottom: 1px solid #eee;
    transition: background-color 0.2s;
}

tbody tr:hover {ecf0f1
    background-color: #f5f5f5;
}

tbody tr:last-child {
    border-bottom: none;
}

.error-section {
    margin-top: 30px;
}

.error-message {
    background: #ffebee;
    color: #c62828;
    padding: 15px;
    border-radius: 5px;
    border-left: 4px solid #c62828;
}

@media (max-width: 600px) {
    .search-box {
        flex-direction: column;
    }

    button {
        width: 100%;
    }

    th, td {
        padding: 10px;
        font-size: 0.9em;
    }
}