body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f2f2f2;
    color: #333;
}

.container {
    max-width: 800px;
    margin: 50px auto;
    padding: 20px;
    background-color: white;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    border-radius: 8px;
}

h1, h2 {
    color: #0077cc;
}

button, input, select {
    padding: 10px;
    margin: 5px 0;
    width: 100%;
    box-sizing: border-box;
    border: 1px solid #ccc;
    border-radius: 4px;
}

button {
    background-color: #0077cc;
    color: white;
    border: none;
    cursor: pointer;
}

button:hover {
    background-color: #005fa3;
}

.admin-container {
    padding: 30px;
}

.admin-menu {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
}

.admin-menu a {
    background-color: #0077cc;
    color: white;
    text-decoration: none;
    padding: 10px 15px;
    border-radius: 5px;
    transition: 0.2s;
}

.admin-menu a:hover {
    background-color: #005fa3;
}

.logout {
    background-color: #cc0000;
}

.success-message {
    background-color: #d4edda;
    color: #155724;
    padding: 10px;
    border-radius: 5px;
    margin-bottom: 10px;
    border: 1px solid #c3e6cb;
}

.error-message {
    background-color: #f8d7da;
    color: #721c24;
    padding: 10px;
    border-radius: 5px;
    margin-bottom: 10px;
    border: 1px solid #f5c6cb;
}

.table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

.table th, .table td {
    padding: 10px;
    border: 1px solid #ddd;
    text-align: left;
}

.table th {
    background-color: #f1f1f1;
}

.button {
    display: inline-block;
    padding: 10px 15px;
    background-color: #0077cc;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    margin-right: 10px;
}

.button:hover {
    background-color: #005fa3;
}

select {
    width: 100%;
    padding: 10px;
    margin-top: 5px;
    border-radius: 4px;
    border: 1px solid #ccc;
}

/* 📱 Mobilní optimalizace */
@media (max-width: 768px) {
    .container {
        padding: 15px;
        margin: 10px;
    }

    h1, h2 {
        font-size: 1.4em;
    }

    .admin-menu {
        flex-direction: column;
    }

    .admin-menu a,
    .button,
    button,
    input,
    select {
        width: 100% !important;
        display: block;
        margin: 8px 0;
    }

    .table th, .table td {
        font-size: 14px;
        padding: 8px;
    }

    select {
        font-size: 16px;
    }

    .success-message, .error-message {
        font-size: 15px;
    }
}