/* Modal Styles */
#post-pdf-modal {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.4);
    backdrop-filter: blur(5px);
}

#post-pdf-modal .modal-content {
    background-color: #fefefe;
    margin: 10% auto;
    padding: 30px;
    border: 1px solid #888;
    width: 90%;
    max-width: 500px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    position: relative;
    font-family: inherit;
}

#post-pdf-modal .close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    line-height: 1;
}

#post-pdf-modal .close:hover,
#post-pdf-modal .close:focus {
    color: black;
    text-decoration: none;
    cursor: pointer;
}

/* Form Styles */
.post-pdf-email-form .form-group {
    margin-bottom: 15px;
}

.post-pdf-email-form input[type="text"],
.post-pdf-email-form input[type="email"] {
    width: 100%;
    padding: 10px;
    margin: 5px 0 0 0;
    display: inline-block;
    border: 2px solid #555; /* Darker and thicker border */
    border-radius: 4px;
    box-sizing: border-box;
    background-color: #fff;
}

.post-pdf-email-form input[type="text"]:focus,
.post-pdf-email-form input[type="email"]:focus {
    border-color: #333;
    outline: none;
    box-shadow: 0 0 5px rgba(0,0,0,0.1);
}

.post-pdf-email-form button {
    width: 100%;
    background-color: #4CAF50;
    color: white;
    padding: 12px 20px;
    margin: 8px 0;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s;
}

.post-pdf-email-form button:hover {
    background-color: #45a049;
}

.post-pdf-email-form button:disabled {
    background-color: #ccc;
    cursor: not-allowed;
}

.post-pdf-message {
    padding: 10px;
    margin-bottom: 10px;
    border-radius: 4px;
    font-size: 14px;
    display: none;
}

.post-pdf-message.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.post-pdf-message.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

/* Shortcode Button Styles */
.post-pdf-shortcode-btn {
    display: inline-block;
    padding: 10px 20px;
    background-color: #007bff;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    text-decoration: none;
    font-size: 1em;
    transition: background-color 0.3s ease;
    text-align: center;
}

.post-pdf-shortcode-btn:hover {
    background-color: #0056b3;
}

.post-pdf-shortcode-btn.post-pdf-btn-xs {
    padding: 5px 10px;
    font-size: 0.8em;
}

.post-pdf-shortcode-btn.post-pdf-btn-sm {
    padding: 8px 16px;
    font-size: 0.9em;
}

.post-pdf-shortcode-btn.post-pdf-btn-md {
    padding: 12px 24px;
    font-size: 1em;
}

.post-pdf-shortcode-btn.post-pdf-btn-lg {
    padding: 15px 30px;
    font-size: 1.2em;
}

.post-pdf-shortcode-btn.post-pdf-btn-xl {
    padding: 20px 40px;
    font-size: 1.5em;
}