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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: #f4f6f8;
    color: #222;
    padding: 2rem;
}

.container {
    max-width: 640px;
    margin: 0 auto;
}

h1 {
    text-align: center;
    margin-bottom: 1.5rem;
    font-size: 1.6rem;
}

.search-form {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.search-form input {
    flex: 1;
    padding: 0.6rem 0.8rem;
    font-size: 1rem;
    border: 1px solid #ccc;
    border-radius: 4px;
}

.search-form button {
    padding: 0.6rem 1.2rem;
    font-size: 1rem;
    background: #2b6cb0;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

.search-form button:hover {
    background: #2c5282;
}

.error {
    color: #c53030;
    text-align: center;
    font-weight: 600;
}

.driver-table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
    border-radius: 6px;
    overflow: hidden;
    box-shadow: 0 1px 4px rgba(0,0,0,.1);
}

.driver-table th {
    background: #2b6cb0;
    color: #fff;
    padding: 0.75rem;
    font-size: 1.15rem;
    text-align: left;
}

.driver-table td {
    padding: 0.5rem 0.75rem;
    border-bottom: 1px solid #e2e8f0;
}

.driver-table tr td:first-child {
    font-weight: 600;
    color: #4a5568;
    width: 45%;
}

.driver-table tr:last-child td {
    border-bottom: none;
}

@media (max-width: 480px) {
    body {
        padding: 1rem;
    }
    .search-form {
        flex-direction: column;
    }
    .search-form button {
        width: 100%;
    }
}