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

body {
    font-family: 'Helvetica Neue', Arial, 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', Meiryo, sans-serif;
    background-color: #f5f5f5;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

h1 {
    font-size: 1.5em;
    color: #1a1a1a;
    border-bottom: 3px solid #0066cc;
    padding-bottom: 10px;
    margin-bottom: 20px;
}

h2 {
    font-size: 1.2em;
    color: #333;
    margin-bottom: 10px;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    font-weight: bold;
    margin-bottom: 5px;
    font-size: 0.9em;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 0.95em;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #0066cc;
    box-shadow: 0 0 3px rgba(0, 102, 204, 0.3);
}

.form-row {
    display: flex;
    gap: 15px;
}

.form-row .form-group {
    flex: 1;
}

.btn {
    display: inline-block;
    padding: 10px 24px;
    border: none;
    border-radius: 4px;
    font-size: 0.95em;
    cursor: pointer;
    text-decoration: none;
    transition: background-color 0.2s;
}

.btn-primary {
    background-color: #0066cc;
    color: #fff;
}

.btn-primary:hover {
    background-color: #0052a3;
}

.btn-danger {
    background-color: #cc3333;
    color: #fff;
}

.btn-danger:hover {
    background-color: #a32929;
}

.btn-secondary {
    background-color: #666;
    color: #fff;
}

.btn-secondary:hover {
    background-color: #555;
}

.btn-success {
    background-color: #28a745;
    color: #fff;
}

.btn-success:hover {
    background-color: #218838;
}

.btn-group {
    margin-top: 20px;
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.result-area {
    margin-top: 20px;
    padding: 15px;
    background-color: #fff;
    border: 1px solid #ddd;
    border-radius: 4px;
    min-height: 50px;
}

.result-table {
    width: 100%;
    border-collapse: collapse;
}

.result-table td {
    padding: 8px 12px;
    border-bottom: 1px solid #eee;
    font-size: 0.9em;
    word-break: break-all;
}

.result-table td.key {
    font-weight: bold;
    width: 200px;
    background-color: #f9f9f9;
}

.error-message {
    color: #cc3333;
    padding: 10px;
    background-color: #fff0f0;
    border: 1px solid #ffcccc;
    border-radius: 4px;
}

.loading {
    color: #666;
    text-align: center;
    padding: 20px;
}

.camera-area {
    margin: 15px 0;
    text-align: center;
}

.camera-preview {
    background-color: #000;
    display: block;
    position: relative;
    width: 100%;
    max-width: 480px;
    margin: 0 auto;
    transform: scale(0.7);
    transform-origin: top center;
}

.msg-area {
    margin: 10px 0;
    padding: 10px;
    background-color: #e8f4fd;
    border-radius: 4px;
    text-align: center;
    font-weight: bold;
    min-height: 40px;
}

.nav-link {
    display: inline-block;
    margin-top: 20px;
    color: #0066cc;
    text-decoration: none;
}

.nav-link:hover {
    text-decoration: underline;
}

.section {
    background-color: #fff;
    padding: 20px;
    border-radius: 4px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
}

.required::after {
    content: ' *';
    color: #cc3333;
}