/* Základní styl pro chat */
body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
}

.chat-container {
    width: 80%;
    margin: 20px auto;
    padding: 20px;
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

h1 {
    text-align: center;
    color: #333;
}

form {
    margin-bottom: 20px;
}

label {
    font-size: 14px;
    display: block;
    margin-bottom: 5px;
}

input[type="text"], input[type="file"], textarea, button {
    width: 100%;
    padding: 10px;
    margin-bottom: 10px;
    border-radius: 5px;
    border: 1px solid #ccc;
}

button {
    background-color: #4CAF50;
    color: white;
    border: none;
    cursor: pointer;
    font-size: 16px;
}

button:hover {
    background-color: #45a049;
}

.messages {
    margin-top: 30px;
}

.message {
    border-bottom: 1px solid #ddd;
    padding-bottom: 15px;
    margin-bottom: 15px;
}

.message p {
    margin: 5px 0;
}

.message img {
    max-width: 100px;
    max-height: 100px;
    cursor: pointer;
    border-radius: 4px;
    transition: 0.3s;
}

.message img:hover {
    opacity: 0.8;
}

.message a {
    text-decoration: none;
    color: #4CAF50;
}

/* Zvětšení obrázku v modálním okně */
.modal {
    display: none; /* Skryté modální okno */
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.9);
    padding-top: 60px;
    text-align: center;
}

.modal-content {
    margin: auto;
    display: block;
    max-width: 90%;
    max-height: 90%;
    border: 5px solid white;
    border-radius: 8px;
}

.close {
    position: absolute;
    top: 20px;
    right: 35px;
    color: white;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    transition: 0.3s;
}

.close:hover,
.close:focus {
    color: #bbb;
    text-decoration: none;
}