body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f9;
    margin: 0;
    padding: 0;
}

/* Header-Stil */
header {
    background-color: #35477d;
    color: #fff;
    padding: 10px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Logo oben rechts im Header */
header .logo {
    width: 100px;
    height: auto;
}

/* Überschrift weiß */
header h1 {
    color: #fff;
    margin: 0;
    font-size: 1.5rem;
}

/* Text unter der Überschrift */
header p {
    font-size: 1rem;
    margin-top: 5px;
    color: #f4f4f9;
}

/* Navigation-Stil */
nav {
    background-color: #fff;
    padding: 10px;
    display: flex;
    justify-content: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
}

nav a {
    color: #35477d;
    text-decoration: none;
    margin: 0 15px;
    padding: 10px 15px;
    font-size: 1rem;
    font-weight: bold;
    border-radius: 4px;
    transition: background-color 0.3s, color 0.3s;
}

nav a:hover {
    background-color: #35477d;
    color: #fff;
}

/* Container für Inhalte */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Buttons */
button {
    background-color: #35477d;
    color: #fff;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

button:hover {
    background-color: #2b3e6b;
}

/* Kalender-Stile */
#calendar {
    max-width: 100%;
    margin: 40px 0;
}

/* Login-Formular */
.login-container {
    width: 300px;
    margin: 100px auto;
    background: white;
    padding: 20px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    border-radius: 10px;
}

.login-container input {
    width: 100%;
    padding: 10px;
    margin: 10px 0;
    border: 1px solid #ccc;
    border-radius: 5px;
}

.login-container button {
    width: 100%;
    padding: 10px;
    background-color: #35477d;
    color: #fff;
    border: none;
    border-radius: 5px;
}

/* Fehlertext im Login-Formular */
.error {
    color: red;
    font-weight: bold;
}

/* Footer für "Designed by SolveITKL" */
footer {
    text-align: center;
    padding: 20px;
    background-color: #35477d;
    color: #fff;
    margin-top: 40px;
}

footer img {
    width: 100px;
    height: auto;
    display: inline-block;
    vertical-align: middle;
}

footer p {
    display: inline-block;
    margin-left: 10px;
    font-size: 14px;
}