* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, sans-serif;
}

body {
    background-color: whitesmoke;
    color: darkslategray;
    line-height: 1.6;
    padding: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.page-header {
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid lightgray;
}

.page-header h1 {
    color: cornflowerblue;
    font-size: 1.8rem;
    margin-bottom: 10px;
}

.page-description {
    color: slategray;
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.5;
}

.form-container {
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    margin: 30px auto;
    width: 90%;
    max-width: 800px;
    padding: 30px 40px;
    border: 1px solid lightgray;
}

.visible-field {
    margin-bottom: 15px;
    display: block;
    width: 100%;
    max-width: 300px;
    padding: 10px 12px;
    font-size: 0.95rem;
    border: 1px solid lightgray;
    border-radius: 6px;
    background-color: white;
    color: darkslategray;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.visible-field:hover {
    border-color: cornflowerblue;
}

.visible-field:focus {
    outline: none;
    border-color: cornflowerblue;
    box-shadow: 0 0 0 3px rgba(100, 149, 237, 0.2);
}

label {
    display: block;
    margin-top: 15px;
    font-weight: bold;
}

.submit-btn {
    margin-top: 20px;
    padding: 10px 20px;
    background-color: cornflowerblue;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
}

.submit-btn:hover {
    background-color: royalblue;
}

.refresh-btn {
    background-color: darkseagreen;
    margin-top: 10px;
    display: block;
}

.refresh-btn:hover {
    background-color: darkolivegreen;
}

.data-display {
    background: #fff;
    padding: 10px;
    overflow: auto;
}

.test-results {
    margin-top: 30px;
    padding: 20px;
    border: 1px solid lightgray;
    border-radius: 6px;
    background-color: whitesmoke;
}

.test-results h3 {
    color: darkslategray;
    margin-bottom: 15px;
}

.hidden-clip-path {
    clip-path: inset(100%);
    position: absolute;
}

.hidden-content-visibility {
    content-visibility: hidden;
}

.tech-description {
    font-size: 0.85em;
    color: dimgray;
    margin-top: 3px;
}