body {
    background: linear-gradient(135deg, #fdfbfb 0%, #ebedee 100%);
    min-height: 100vh;
    font-family: 'Noto Sans KR', sans-serif;
}

.qr-container {
    width: 90%;
    max-width: 800px;
    margin: 60px auto;
}

.page-header {
    text-align: center;
    margin-bottom: 40px;
}

.page-header h2 {
    font-weight: 700;
    color: #2c3e50;
    font-size: 2.2rem;
    margin-bottom: 10px;
}

.home-link {
    color: #555;
    text-decoration: none;
    font-weight: 500;
    background: rgba(255, 255, 255, 0.5);
    padding: 5px 15px;
    border-radius: 20px;
    transition: all 0.2s;
}

.home-link:hover {
    background: white;
    color: #333;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.tool-card {
    background: white;
    border-radius: 20px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    padding: 40px;
    border: none;
}

.form-label {
    font-weight: 600;
    color: #444;
    margin-bottom: 10px;
}

.form-control {
    height: 55px;
    border-radius: 12px;
    border: 2px solid #e9ecef;
    font-size: 1.1rem;
    padding: 0 20px;
}

.form-control:focus {
    border-color: #333;
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.1);
}

.btn-generate {
    height: 55px;
    font-weight: 600;
    font-size: 1.1rem;
    border-radius: 12px;
    background: #333;
    border: none;
    transition: all 0.2s;
}

.btn-generate:hover {
    background: #000;
    transform: translateY(-2px);
}

.result-section {
    text-align: center;
    margin-top: 40px;
    padding-top: 40px;
    border-top: 1px solid #eee;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.qr-image-wrapper {
    background: white;
    padding: 20px;
    border-radius: 15px;
    display: inline-block;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    border: 1px solid #eee;
    margin-bottom: 20px;
}

.qr-image {
    max-width: 100%;
    height: auto;
}

.qr-data-text {
    color: #666;
    margin-bottom: 20px;
    word-break: break-all;
    font-family: monospace;
    background: #f8f9fa;
    padding: 10px;
    border-radius: 8px;
    display: inline-block;
}

.btn-download {
    padding: 12px 30px;
    font-weight: 600;
    border-radius: 10px;
    background: #27ae60;
    border: none;
    transition: all 0.2s;
}

.btn-download:hover {
    background: #219150;
    transform: translateY(-2px);
}