/* ===== 기본 설정 및 리셋 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    line-height: 1.6;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #333;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 428px;
    margin: 0 auto;
    background: white;
    min-height: 100vh;
    box-shadow: 0 0 50px rgba(0, 0, 0, 0.15);
    position: relative;
    overflow-x: hidden;
}

/* ===== 헤더 스타일 ===== */
.header {
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    color: white;
    padding: 2rem 1.5rem 1.5rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.header::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation: headerGlow 3s ease-in-out infinite alternate;
}

@keyframes headerGlow {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(5deg); }
}

.header-content {
    position: relative;
    z-index: 2;
}

.header h1 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.header p {
    font-size: 0.95rem;
    opacity: 0.9;
    font-weight: 300;
}

.back-button {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255,255,255,0.2);
    border: none;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.back-button:hover {
    background: rgba(255,255,255,0.3);
    transform: translateY(-50%) translateX(-2px);
}

/* ===== 메인 콘텐츠 ===== */
.main {
    padding: 2rem 1.5rem;
    background: #f8fafc;
}

/* ===== 상품 그리드 ===== */
.products-section {
    margin-bottom: 3rem;
}

.products-section h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: #1e293b;
    text-align: center;
}

.product-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.product-card {
    background: white;
    border-radius: 20px;
    padding: 1.5rem;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
    opacity: 0;
    transform: translateY(20px);
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.12);
}

.product-image {
    text-align: center;
    margin-bottom: 1rem;
}

.product-emoji {
    font-size: 3rem;
    display: block;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

.product-info h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #1e293b;
}

.product-description {
    font-size: 0.9rem;
    color: #64748b;
    margin-bottom: 1rem;
    line-height: 1.5;
}

.price-tag {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.price {
    font-size: 1.4rem;
    font-weight: 700;
    color: #059669;
}

.currency {
    font-size: 0.9rem;
    color: #6b7280;
    background: #f3f4f6;
    padding: 0.2rem 0.5rem;
    border-radius: 6px;
}

.buy-button {
    width: 100%;
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    color: white;
    border: none;
    padding: 1rem;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.buy-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4);
}

.buy-button:active {
    transform: translateY(0);
}

/* ===== 기능 섹션 ===== */
.features-section {
    margin-bottom: 2rem;
}

.features-section h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: #1e293b;
    text-align: center;
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
}

.feature-card {
    background: white;
    border-radius: 16px;
    padding: 1.5rem;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    border: 1px solid #e2e8f0;
    opacity: 0;
    transform: translateY(20px);
}

.feature-icon {
    font-size: 2rem;
    display: block;
    margin-bottom: 0.8rem;
}

.feature-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #1e293b;
}

.feature-card p {
    font-size: 0.9rem;
    color: #64748b;
}

/* ===== 체크아웃 페이지 스타일 ===== */
.checkout-main {
    background: #f8fafc;
}

.checkout-container {
    max-width: 100%;
}

.order-summary, .payment-section, .checkout-actions {
    background: white;
    border-radius: 20px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
}

.order-summary h2, .payment-section h2 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1e293b;
}

.product-summary {
    border-top: 1px solid #e2e8f0;
    padding-top: 1rem;
}

.product-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.product-image-small {
    width: 60px;
    height: 60px;
    background: #f1f5f9;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.product-image-small .product-emoji {
    font-size: 1.8rem;
}

.product-details h3, .product-details h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.3rem;
    color: #1e293b;
}

.product-price {
    font-size: 1rem;
    font-weight: 600;
    color: #059669;
    margin-bottom: 0.2rem;
}

.product-quantity {
    font-size: 0.9rem;
    color: #64748b;
}

/* ===== 결제 방법 스타일 ===== */
.crypto-pay-option {
    border: 2px solid #6366f1;
    border-radius: 16px;
    padding: 1.5rem;
    background: linear-gradient(135deg, #f8faff 0%, #f1f5ff 100%);
}

.payment-method-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.payment-icon {
    font-size: 1.5rem;
}

.payment-info h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 0.2rem;
}

.payment-info p {
    font-size: 0.9rem;
    color: #64748b;
}

.selected-badge {
    background: #059669;
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-left: auto;
}

.crypto-benefits {
    display: grid;
    gap: 0.8rem;
    margin-top: 1rem;
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-size: 0.9rem;
    color: #374151;
}

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

/* ===== 총 금액 및 결제 버튼 ===== */
.total-section {
    border-top: 1px solid #e2e8f0;
    padding-top: 1rem;
    margin-bottom: 1.5rem;
}

.total-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.total-label {
    font-size: 1.1rem;
    font-weight: 600;
    color: #1e293b;
}

.total-amount {
    font-size: 1.4rem;
    font-weight: 700;
    color: #059669;
}

.tax-notice {
    text-align: center;
}

.tax-notice small {
    color: #6b7280;
    font-size: 0.8rem;
}

.pay-button {
    width: 100%;
    background: linear-gradient(135deg, #059669 0%, #065f46 100%);
    color: white;
    border: none;
    padding: 1.2rem;
    border-radius: 16px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 6px 20px rgba(5, 150, 105, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
    margin-bottom: 1rem;
}

.pay-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(5, 150, 105, 0.4);
}

.pay-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

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

.payment-security {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    color: #6b7280;
}

.security-icon {
    font-size: 1rem;
}

/* ===== 로딩 오버레이 ===== */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(5px);
}

.loading-overlay.hidden {
    display: none;
}

.loading-content {
    background: white;
    padding: 2rem;
    border-radius: 20px;
    text-align: center;
    max-width: 280px;
    margin: 0 1rem;
    box-shadow: 0 20px 40px rgba(0,0,0,0.2);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #e2e8f0;
    border-top: 4px solid #6366f1;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading-content h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #1e293b;
}

.loading-content p {
    font-size: 0.9rem;
    color: #64748b;
}

/* ===== 성공 페이지 스타일 ===== */
.success-main, .cancel-main {
    background: #f8fafc;
}

.success-container, .cancel-container {
    max-width: 100%;
}

.success-container section, .cancel-container section {
    background: white;
    border-radius: 20px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    opacity: 0;
    transform: translateY(20px);
}

.success-message, .cancel-message {
    text-align: center;
    padding: 2rem 1.5rem;
}

.success-icon, .cancel-icon {
    margin-bottom: 1.5rem;
}

.checkmark {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    border: 4px solid #059669;
    margin: 0 auto;
    position: relative;
}

.checkmark.animate {
    animation: checkmarkPop 0.6s ease-in-out;
}

@keyframes checkmarkPop {
    0% { transform: scale(0); }
    50% { transform: scale(1.2); }
    100% { transform: scale(1); }
}

.checkmark-circle {
    stroke-dasharray: 166;
    stroke-dashoffset: 166;
    stroke-width: 4;
    stroke-miterlimit: 10;
    stroke: #059669;
    fill: none;
    animation: stroke 0.6s cubic-bezier(0.65, 0, 0.45, 1) forwards;
}

.checkmark-stem {
    width: 3px;
    height: 20px;
    background: #059669;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%) rotate(45deg);
    transform-origin: left bottom;
    animation: checkmarkStem 0.3s ease-in-out 0.3s both;
}

.checkmark-kick {
    width: 3px;
    height: 12px;
    background: #059669;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%) rotate(-45deg);
    transform-origin: left bottom;
    animation: checkmarkKick 0.2s ease-in-out 0.5s both;
}

@keyframes checkmarkStem {
    0% { height: 0; }
    100% { height: 20px; }
}

@keyframes checkmarkKick {
    0% { height: 0; }
    100% { height: 12px; }
}

.cancel-symbol {
    font-size: 4rem;
    color: #dc2626;
    animation: cancelShake 0.5s ease-in-out;
}

@keyframes cancelShake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

.success-message h2, .cancel-message h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1e293b;
}

.success-description, .cancel-description {
    font-size: 1rem;
    color: #64748b;
    line-height: 1.6;
}

/* ===== 상세 정보 스타일 ===== */
.detail-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem 0;
    border-bottom: 1px solid #f1f5f9;
}

.detail-row:last-child {
    border-bottom: none;
}

.detail-label {
    font-size: 0.9rem;
    color: #64748b;
}

.detail-value {
    font-size: 0.9rem;
    font-weight: 600;
    color: #1e293b;
}

.status-success {
    color: #059669;
}

/* ===== 리워드 카드 ===== */
.rewards-card {
    background: linear-gradient(135deg, #fef3c7 0%, #fcd34d 100%);
    border-radius: 16px;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    border: 1px solid #f59e0b;
}

.rewards-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.rewards-content h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #92400e;
    margin-bottom: 0.3rem;
}

.rewards-content p {
    font-size: 0.9rem;
    color: #b45309;
    margin-bottom: 0.3rem;
}

.rewards-content small {
    font-size: 0.8rem;
    color: #a16207;
}

/* ===== 액션 버튼들 ===== */
.success-actions, .cancel-actions {
    display: grid;
    gap: 0.8rem;
}

.primary-button {
    width: 100%;
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    color: white;
    border: none;
    padding: 1rem;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.secondary-button {
    width: 100%;
    background: white;
    color: #6366f1;
    border: 2px solid #6366f1;
    padding: 1rem;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.tertiary-button {
    width: 100%;
    background: #f8fafc;
    color: #64748b;
    border: 1px solid #e2e8f0;
    padding: 1rem;
    border-radius: 12px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.primary-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4);
}

.secondary-button:hover {
    background: #6366f1;
    color: white;
    transform: translateY(-2px);
}

.tertiary-button:hover {
    background: #e2e8f0;
    transform: translateY(-1px);
}

/* ===== 단계 목록 ===== */
.steps-list {
    display: grid;
    gap: 1rem;
}

.step-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.step-number {
    width: 32px;
    height: 32px;
    background: #6366f1;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    font-weight: 600;
    flex-shrink: 0;
}

.step-content h4 {
    font-size: 1rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 0.3rem;
}

.step-content p {
    font-size: 0.9rem;
    color: #64748b;
    line-height: 1.5;
}

/* ===== 취소 페이지 전용 스타일 ===== */
.reasons-list, .suggestions-list {
    display: grid;
    gap: 1rem;
}

.reason-item, .suggestion-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    background: #f8fafc;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
}

.reason-icon, .suggestion-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.reason-content h4 {
    font-size: 1rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 0.3rem;
}

.reason-content p {
    font-size: 0.9rem;
    color: #64748b;
}

.help-card {
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    border-radius: 16px;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    border: 1px solid #3b82f6;
}

.help-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.help-content h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #1e40af;
    margin-bottom: 0.3rem;
}

.help-content p {
    font-size: 0.9rem;
    color: #1d4ed8;
    margin-bottom: 0.5rem;
}

.help-link {
    color: #1d4ed8;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
}

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

/* ===== 푸터 ===== */
.footer {
    background: #1e293b;
    color: white;
    text-align: center;
    padding: 1.5rem;
    margin-top: auto;
}

.footer p {
    font-size: 0.9rem;
    opacity: 0.8;
    margin-bottom: 0.5rem;
}

.footer p:last-child {
    margin-bottom: 0;
}

/* ===== 반응형 디자인 ===== */
@media (min-width: 480px) {
    .product-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
}

@media (min-width: 768px) {
    .container {
        max-width: 480px;
    }
    
    .header h1 {
        font-size: 2rem;
    }
    
    .product-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 1.5rem;
    }
}

/* ===== 터치 디바이스 최적화 ===== */
@media (hover: none) and (pointer: coarse) {
    .buy-button:hover,
    .pay-button:hover,
    .primary-button:hover,
    .secondary-button:hover,
    .tertiary-button:hover {
        transform: none;
    }
    
    .product-card:hover {
        transform: none;
    }
}

/* ===== 다크 모드 지원 ===== */
@media (prefers-color-scheme: dark) {
    body {
        background: linear-gradient(135deg, #1e293b 0%, #374151 100%);
    }
    
    .container {
        background: #0f172a;
        color: #e2e8f0;
    }
    
    .main {
        background: #1e293b;
    }
    
    .product-card,
    .feature-card,
    .success-container section,
    .cancel-container section {
        background: #334155;
        border-color: #475569;
        color: #e2e8f0;
    }
    
    .product-info h3,
    .feature-card h3,
    .detail-label {
        color: #f1f5f9;
    }
    
    .product-description,
    .feature-card p,
    .detail-value {
        color: #cbd5e1;
    }
}

/* ===== QR 코드 관련 스타일 ===== */
.payment-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.qr-button {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
    border: none;
    border-radius: 12px;
    padding: 1rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
}

.qr-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
}

.qr-button:active {
    transform: translateY(0);
}

.qr-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* QR 오버레이 */
.qr-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(5px);
}

.qr-overlay.hidden {
    display: none;
}

.qr-content {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    max-width: 90%;
    max-height: 90%;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    position: relative;
}

.qr-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid #f1f5f9;
}

.qr-header h3 {
    color: #1e293b;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
}

.close-qr-btn {
    background: #ef4444;
    color: white;
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.close-qr-btn:hover {
    background: #dc2626;
    transform: scale(1.1);
}

.qr-image-container {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.qr-section {
    text-align: center;
}

.qr-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 1rem;
}

.qr-subtitle {
    font-size: 0.9rem;
    font-weight: 500;
    color: #64748b;
    margin-bottom: 0.5rem;
}

.qr-codes-row {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.qr-code-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.qr-code-container {
    background: white;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    padding: 1rem;
    margin-bottom: 1rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.qr-image {
    width: 160px;
    height: 160px;
    border-radius: 8px;
}

.qr-action-button {
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    color: white;
    border: none;
    border-radius: 8px;
    padding: 0.75rem 1.5rem;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}

.qr-action-button:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
}

.qr-instructions {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 2px solid #f1f5f9;
    text-align: center;
}

.qr-instructions p {
    color: #64748b;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.qr-instructions strong {
    color: #1e293b;
    font-weight: 600;
}

/* 반응형 QR 코드 */
@media (max-width: 480px) {
    .qr-content {
        padding: 1.5rem;
        margin: 1rem;
    }
    
    .qr-codes-row {
        flex-direction: column;
        gap: 1rem;
    }
    
    .qr-image {
        width: 140px;
        height: 140px;
    }
    
    .qr-header h3 {
        font-size: 1.3rem;
    }
}