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

body {
    min-height: 100vh;

    font-family: Arial, Helvetica, sans-serif;

    background: #eef7f6;

    display: flex;
    justify-content: center;
    align-items: center;
}

.login-container {
    width: 100%;
    padding: 20px;
}

.login-box {
    width: 100%;
    max-width: 430px;

    margin: auto;

    background: #ffffff;

    padding: 40px;

    border: 3px solid #0f766e;
    border-radius: 20px;

    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
}

.login-logo {
    text-align: center;
    margin-bottom: 20px;
}

.login-logo img {
    width: 140px;
    height: auto;
    object-fit: contain;
}

.login-box h1 {
    text-align: center;

    color: #0f766e;

    font-size: 32px;

    margin-bottom: 10px;
}

.login-text {
    text-align: center;

    color: #777;

    margin-bottom: 30px;

    line-height: 1.5;
}

.input-group {
    margin-bottom: 20px;
}

.input-group label {
    display: block;

    margin-bottom: 8px;

    color: #333;

    font-weight: bold;
}

.input-group input {
    width: 100%;

    padding: 14px 15px;

    border: 2px solid #d7e7e5;

    border-radius: 10px;

    outline: none;

    font-size: 16px;

    transition: 0.3s;
}

.input-group input:focus {
    border-color: #0f766e;
}

.login-button {
    width: 100%;

    padding: 15px;

    border: none;

    border-radius: 10px;

    background: #0f766e;

    color: white;

    font-size: 17px;

    font-weight: bold;

    cursor: pointer;

    transition: 0.3s;
}

.login-button:hover {
    background: #115e59;
}

.zurueck {
    text-align: center;

    margin-top: 25px;
}

.zurueck a {
    color: #0f766e;

    text-decoration: none;

    font-weight: bold;
}

.zurueck a:hover {
    text-decoration: underline;
}