/* PDF Locker Tool Styles - Revised Modern Look v3 */

.pdf-locker-tool-container {
    max-width: 700px;
    margin: 40px auto;
    padding: 35px 45px;
    background-color: #fdfdfd;
    border: 1px solid #eaeaea;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
    box-sizing: border-box;
}

.pdf-locker-form .form-group {
    margin-bottom: 28px;
}

.pdf-locker-form label {
    display: block;
    margin-bottom: 10px;
    font-weight: 500;
    color: #2c3e50;
    font-size: 1rem;
}

/* File Input Area Styling */
.pdf-locker-form .file-input-area {
    background-color: #f9f9f9;
    padding: 20px;
    border-radius: 6px;
    border: 1px solid #eee;
}

/* Remove the container margin since we're removing the Add button */
.pdf-locker-form .file-inputs-container {
    margin-bottom: 0;
}

/* File Input Styling */
.pdf-locker-form input[type="file"] {
    width: 100%;
    padding: 15px 12px;
    border: 1px solid #ccc;
    border-radius: 4px;
    background-color: #f0f8ff;
    font-size: 0.95rem;
    color: #555;
    box-sizing: border-box;
    transition: border-color 0.2s ease, background-color 0.2s ease;
    cursor: pointer;
    min-height: 55px;
    line-height: normal;
}

/* Hide default browser button */
.pdf-locker-form input[type="file"]::file-selector-button,
.pdf-locker-form input[type="file"]::-webkit-file-upload-button {
     visibility: hidden;
     width: 0;
     padding: 0;
     margin: 0;
     border: none;
}

/* Placeholder text using pseudo-element */
.pdf-locker-form input[type="file"]::before {
    content: 'Select PDF File';
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: #6c757d;
    pointer-events: none;
    font-size: 0.95rem;
}

/* Hide placeholder when a file is selected */
.pdf-locker-form input[type="file"]:not(:placeholder-shown)::before {
    display: none;
}

.pdf-locker-form input[type="file"]:hover {
    border-color: #aaa;
    background-color: #e3f2fd;
}

.pdf-locker-form input[type="file"]:focus {
     border-color: #2196F3;
     outline: none;
     box-shadow: 0 0 0 2px rgba(33, 150, 243, 0.15);
}

/* Password Inputs */
.pdf-locker-form input[type="password"] {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
    font-size: 1rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.pdf-locker-form input[type="password"]:focus {
    border-color: #2196F3;
    box-shadow: 0 0 0 2px rgba(33, 150, 243, 0.15);
    outline: none;
}

.pdf-locker-form small {
    display: block;
    margin-top: 10px;
    font-size: 0.85em;
    color: #667;
}

/* Submit Button */
.pdf-locker-form .button.button-primary {
    background-color: #4CAF50;
    border: none;
    color: white;
    padding: 13px 25px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 1.05rem;
    font-weight: 500;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.1s ease, box-shadow 0.2s ease;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    width: 100%;
    box-sizing: border-box;
}

.pdf-locker-form .button.button-primary:hover {
    background-color: #45a049;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.pdf-locker-form .button.button-primary:active {
    transform: translateY(1px);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* Status Messages */
.pdf-locker-notice {
    padding: 15px 20px;
    margin-bottom: 25px;
    border-radius: 5px;
    border: 1px solid transparent;
    font-size: 0.95rem;
    line-height: 1.6;
}

.pdf-locker-notice p {
    margin: 0;
    padding: 0;
}

.pdf-locker-error {
    color: #c0392b;
    background-color: #fbeae5;
    border-color: #e74c3c;
}

.pdf-locker-success {
    color: #27ae60;
    background-color: #eafaf1;
    border-color: #2ecc71;
}