body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: 19.2px;
}

.container-fluid {
    max-width: 1600px;
    padding: 1rem;
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 2rem;
}

h5 {
    font-size: 1.5rem;
    font-weight: 600;
}

.card {
    border: none;
    border-radius: 15px;
    overflow: hidden;
}

.card-header {
    border-bottom: none;
    padding: 1.25rem;
    font-size: 1.3rem;
}

.input-summary-box {
    background: #f8f9fa;
    border: 2px solid #dee2e6;
    border-radius: 10px;
    padding: 1.5rem;
    margin: 0;
    font-size: 1.1rem;
}

.btn {
    border-radius: 8px;
    padding: 0.75rem 1.5rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

#previewContent {
    background: white;
    padding: 1rem;
    border-radius: 10px;
    font-family: 'Malgun Gothic', '맑은 고딕', sans-serif;
    line-height: 1.5;
    /* 출력화면 글씨를 현재 대비 약 20% 확대 */
    font-size: 1.2rem;
    max-height: 85vh;
    overflow-y: auto;
}

.modal-xl {
    max-width: 95%;
}

.modal-body {
    padding: 0.5rem;
    max-height: 90vh;
    overflow-y: auto;
}

.auction-notice {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0;
}

/* 출력 화면(팝업)에서 본문 폭을 60% 수준으로 축소 */
#previewContent .auction-notice {
    width: 60%;
    max-width: 760px;
    min-width: 520px;
    margin: 0 auto;
}

@media (max-width: 992px) {
    #previewContent .auction-notice {
        width: 100%;
        min-width: 0;
        max-width: 100%;
    }
}

.auction-title {
    text-align: center;
    font-size: 2.64rem; /* 2.2 * 1.2 */
    font-weight: bold;
    color: #1a1a1a;
    margin-bottom: 0.8rem;
    padding-bottom: 0.6rem;
    border-bottom: 3px solid #667eea;
}

.auction-greeting {
    text-align: center;
    font-size: 1.44rem; /* 1.2 * 1.2 */
    color: #555;
    margin-bottom: 1rem;
    font-weight: 500;
}

.auction-section {
    margin-bottom: 0.8rem;
    padding: 0.8rem 1rem;
    background: #f8f9fa;
    border-radius: 6px;
    border-left: 4px solid #667eea;
}

.auction-section h3 {
    color: #667eea;
    font-size: 1.56rem; /* 1.3 * 1.2 */
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.auction-section h3 .detail-text {
    color: #000;
    font-weight: 600;
}

.auction-section p {
    margin: 0.25rem 0;
    font-size: 1.2rem; /* 1.0 * 1.2 */
    color: #333;
    line-height: 1.5;
}

.auction-section ul {
    margin: 0.25rem 0;
    padding-left: 1.5rem;
}

.auction-section li {
    margin: 0.25rem 0;
    font-size: 1.2rem; /* 1.0 * 1.2 */
    color: #333;
    line-height: 1.5;
}

.highlight {
    color: #667eea;
    font-weight: 600;
}

.table {
    background: white;
}

.modal-content {
    border-radius: 15px;
    border: none;
}

.preview-modal-dialog {
    max-width: 60vw;
}

@media (max-width: 992px) {
    .preview-modal-dialog {
        max-width: 95vw;
    }
}

.modal-header {
    border-radius: 15px 15px 0 0;
}

.modal-footer {
    border-radius: 0 0 15px 15px;
}

@media print {
    body {
        background: white;
    }
    
    .container-fluid {
        max-width: 100%;
    }
    
    .card {
        box-shadow: none;
    }
    
    #previewContent {
        page-break-inside: avoid;
    }
}