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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Malgun Gothic', sans-serif;
    background: #f8fafc;
    min-height: 100vh;
    color: #1a202c;
    line-height: 1.6;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 20px;
}

/* 헤더 스타일 */
.header {
    text-align: center;
    margin-bottom: 40px;
}

.header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1e3a8a;
    margin-bottom: 12px;
}

.subtitle {
    font-size: 1.1rem;
    color: #64748b;
    font-weight: 400;
}

/* 다운로드 카드 */
.download-card {
    background: white;
    border-radius: 16px;
    padding: 32px;
    box-shadow: 0 4px 6px -1px rgba(30, 58, 138, 0.1), 0 2px 4px -1px rgba(30, 58, 138, 0.06);
    border: 1px solid #dbeafe;
    margin-bottom: 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.download-info h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1e3a8a;
    margin-bottom: 8px;
}

.download-info p {
    color: #64748b;
    font-size: 0.95rem;
}

.file-info {
    margin-top: 8px;
    padding: 8px 12px;
    background: #eff6ff;
    border-radius: 8px;
    border-left: 4px solid #1d4ed8;
}

.file-info small {
    color: #1e3a8a;
    font-size: 0.85rem;
}

.download-btn {
    background: linear-gradient(135deg, #1e40af 0%, #1e3a8a 100%);
    color: white;
    border: none;
    padding: 16px 32px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.download-btn:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 10px 15px -3px rgba(30, 64, 175, 0.4), 0 4px 6px -2px rgba(30, 64, 175, 0.3);
}

.download-btn:active {
    transform: translateY(0);
}

.download-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.download-icon {
    font-size: 1.2rem;
}

/* 사용 안내 */
.guide-section {
    background: white;
    border-radius: 16px;
    padding: 32px;
    box-shadow: 0 4px 6px -1px rgba(30, 58, 138, 0.1), 0 2px 4px -1px rgba(30, 58, 138, 0.06);
    border: 1px solid #dbeafe;
    margin-bottom: 24px;
}

.guide-section h3 {
    font-size: 1.4rem;
    font-weight: 600;
    color: #1e3a8a;
    margin-bottom: 24px;
}

.guide-steps {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.step {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.step-number {
    background: linear-gradient(135deg, #1e40af 0%, #1e3a8a 100%);
    color: white;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.9rem;
    flex-shrink: 0;
}

.step-content h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #1e3a8a;
    margin-bottom: 4px;
}

.step-content p {
    color: #64748b;
    font-size: 0.95rem;
}

/* 주의사항 */
.notice-section {
    background: #fef3c7;
    border: 1px solid #f59e0b;
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 24px;
}

.notice-section h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #92400e;
    margin-bottom: 12px;
}

.notice-section ul {
    list-style: none;
    padding-left: 0;
}

.notice-section li {
    color: #92400e;
    font-size: 0.9rem;
    margin-bottom: 8px;
    padding-left: 16px;
    position: relative;
}

.notice-section li:before {
    content: "•";
    position: absolute;
    left: 0;
    color: #f59e0b;
    font-weight: bold;
}

/* 페이지 링크 */
.page-links {
    text-align: center;
}

.page-link {
    display: inline-block;
    padding: 12px 24px;
    background: #f1f5f9;
    color: #475569;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.2s ease;
    border: 1px solid #cbd5e1;
}

.page-link:hover {
    background: #e2e8f0;
    color: #334155;
}

/* 반응형 디자인 */
@media (max-width: 768px) {
    .container {
        padding: 20px 16px;
    }
    
    .header h1 {
        font-size: 2rem;
    }
    
    .download-card {
        flex-direction: column;
        align-items: stretch;
        text-align: center;
        gap: 20px;
    }
    
    .download-btn {
        justify-content: center;
    }
    
    .guide-section,
    .download-card {
        padding: 24px;
    }
}