:root {
    --primary-color: #007bff;
    --error-color: #dc3545;
    --success-color: #28a745;
    --background-color: #f8f9fa;
    --border-color: #dee2e6;
}

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

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    background-color: var(--background-color);
    padding: 20px;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    background-color: white;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 30px;
}

.qr-code {
    width: 100px;
    height: 100px;
}

.qr-code img {
    width: 100%;
    height: 100%;
}

.info-text {
    background-color: #fff3cd;
    border: 1px solid #ffeeba;
    padding: 15px;
    margin-bottom: 30px;
    border-radius: 4px;
}

.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

input[type="text"],
input[type="email"],
select {
    width: 100%;
    padding: 8px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 16px;
}

.checkbox {
    display: flex;
    align-items: center;
    gap: 10px;
}

.checkbox input {
    width: auto;
}

button {
    background-color: var(--primary-color);
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
}

button:hover {
    opacity: 0.9;
}

#success-message {
    text-align: center;
    margin-top: 20px;
    padding: 20px;
    background-color: var(--success-color);
    color: white;
    border-radius: 4px;
}

.error {
    color: var(--error-color);
    font-size: 14px;
    margin-top: 5px;
}

@media (max-width: 768px) {
    .container {
        padding: 15px;
    }

    .header {
        flex-direction: column;
        align-items: center;
    }

    .qr-code {
        margin-top: 20px;
    }
}

.error-container {
    text-align: center;
    padding: 40px 20px;
    background-color: #fff3cd;
    border: 1px solid #ffeeba;
    border-radius: 8px;
    margin: 20px 0;
}

.error-container h1 {
    color: #856404;
    margin-bottom: 20px;
}

.error-container p {
    margin-bottom: 15px;
    color: #666;
}

.error-time {
    font-size: 0.9em;
    color: #999;
}

.debug-info {
    margin-top: 30px;
    text-align: left;
    background: #f8f9fa;
    padding: 15px;
    border-radius: 4px;
}

.debug-info pre {
    white-space: pre-wrap;
    word-break: break-all;
}