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

:root {
    --color-primary: #1a237e;
    --color-primary-dark: #0d1444;
    --color-accent: #00e5ff;
    --color-accent-light: #18ffff;
    --color-text: #333333;
    --color-text-light: #666666;
    --color-white: #ffffff;
    --color-bg: #f5f5f5;
    --color-bg-light: #fafafa;
    --max-width: 1200px;
    --section-padding: 100px 20px;
    --border-radius: 12px;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 8px 16px rgba(0, 0, 0, 0.15);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Malgun Gothic', '맑은 고딕', 'Apple SD Gothic Neo', 'Noto Sans KR', sans-serif;
    color: var(--color-text);
    line-height: 1.6;
    background-color: var(--color-white);
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* 헤더 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all 0.3s ease;
    border-bottom: 1px solid transparent;
}

.header.scrolled {
    background-color: rgba(255, 255, 255, 0.98);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    border-bottom-color: rgba(26, 35, 126, 0.1);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo {
    font-size: 24px;
    font-weight: bold;
    color: var(--color-primary);
    letter-spacing: -0.5px;
    display: flex;
    align-items: center;
}

.logo-image {
    height: 45px;
    width: auto;
    object-fit: contain;
    display: block;
}

.nav {
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
}

.nav-link {
    text-decoration: none;
    color: var(--color-text);
    font-size: 15px;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: var(--color-primary);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-accent);
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

/* 히어로 섹션 */
.hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    padding: 160px 20px 100px;
    text-align: center;
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
}

.hero-text {
    text-align: center;
}

.hero-logo {
    display: block;
    margin: 0 auto 30px;
    max-width: 300px;
    width: auto;
    height: auto;
    object-fit: contain;
}

.hero-title {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 30px;
    letter-spacing: -1px;
}

.hero-subtitle {
    font-size: 20px;
    line-height: 1.8;
    margin-bottom: 40px;
    opacity: 0.95;
}

.hero-tags {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
    margin-bottom: 50px;
}

.tag {
    background-color: rgba(255, 255, 255, 0.2);
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    backdrop-filter: blur(10px);
}

.hero-cta {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 16px 32px;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    text-align: center;
}

.btn-large {
    padding: 18px 40px;
    font-size: 18px;
}

.btn-primary {
    background-color: var(--color-accent);
    color: var(--color-primary-dark);
}

.btn-primary:hover {
    background-color: var(--color-accent-light);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 229, 255, 0.4);
}

.btn-secondary {
    background-color: rgba(255, 255, 255, 0.2);
    color: var(--color-white);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
}

/* 리뷰 섹션 */
.review-section {
    margin-top: 60px;
    padding: 0 20px;
}

.review-slider {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    overflow: hidden;
    border-radius: var(--border-radius);
}

.review-slider-wrapper {
    display: flex;
    transition: transform 0.5s ease-in-out;
}

.review-item {
    min-width: 100%;
    padding: 0 10px;
    box-sizing: border-box;
}

.review-content {
    background-color: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius);
    padding: 30px;
    color: var(--color-white);
}

.review-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 15px;
}

.review-user {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.review-user-avatar {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 600;
    color: var(--color-primary-dark);
    flex-shrink: 0;
}

.review-user-name {
    font-size: 18px;
    font-weight: 600;
    margin-right: 10px;
}

.review-rating {
    display: flex;
    gap: 3px;
    color: #ffd700;
    font-size: 16px;
}

.review-rating .star {
    color: #ffd700;
}

.review-rating .star.empty {
    color: rgba(255, 255, 255, 0.3);
}

.review-date {
    font-size: 14px;
    opacity: 0.8;
}

.review-text {
    font-size: 16px;
    line-height: 1.8;
    opacity: 0.95;
}

.review-dots {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 25px;
}

.review-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.4);
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    padding: 0;
}

.review-dot.active {
    background-color: var(--color-white);
    width: 30px;
    border-radius: 5px;
}

.review-dot:hover {
    background-color: rgba(255, 255, 255, 0.7);
}

/* 공지 섹션 */
.notice {
    padding: 60px 20px;
    background-color: var(--color-bg-light);
}

.notice-box {
    max-width: 900px;
    margin: 0 auto;
    background-color: #fff3cd;
    border-left: 5px solid #ffc107;
    padding: 30px;
    border-radius: var(--border-radius);
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.notice-icon {
    font-size: 32px;
    flex-shrink: 0;
}

.notice-content h3 {
    font-size: 20px;
    color: #856404;
    margin-bottom: 15px;
}

.notice-content p {
    color: #856404;
    line-height: 1.8;
    margin-bottom: 10px;
}

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

/* 섹션 공통 스타일 */
.section {
    padding: var(--section-padding);
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    text-align: center;
    color: var(--color-primary);
    margin-bottom: 20px;
    letter-spacing: -0.5px;
}

.section-subtitle {
    font-size: 18px;
    text-align: center;
    color: var(--color-text-light);
    margin-bottom: 60px;
}

/* 서비스 특징 섹션 */
.features {
    background-color: var(--color-bg-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.feature-card {
    background-color: var(--color-white);
    padding: 40px 30px;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
}

.feature-title {
    font-size: 22px;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 15px;
}

.feature-desc {
    font-size: 15px;
    color: var(--color-text-light);
    line-height: 1.7;
}

/* 이용 절차 섹션 */
.process {
    background-color: var(--color-white);
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.step-card {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    padding: 40px 30px;
    border-radius: var(--border-radius);
    text-align: center;
    position: relative;
    transition: all 0.3s ease;
}

.step-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.step-number {
    font-size: 48px;
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: 20px;
    opacity: 0.8;
}

.step-title {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 15px;
}

.step-desc {
    font-size: 15px;
    line-height: 1.7;
    opacity: 0.9;
}

/* 상담 방법 섹션 */
.contact-methods {
    background-color: var(--color-bg-light);
}

.contact-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
    margin-bottom: 30px;
}

.contact-card {
    background-color: var(--color-white);
    padding: 50px 30px;
    border-radius: var(--border-radius);
    text-align: center;
    text-decoration: none;
    color: var(--color-text);
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    display: block;
}

.contact-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.contact-card-phone:hover {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
}

.contact-card-sms:hover {
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-light) 100%);
    color: var(--color-primary-dark);
}

.contact-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.contact-title {
    font-size: 24px;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 15px;
}

.contact-card:hover .contact-title {
    color: var(--color-white);
}

.contact-card-sms:hover .contact-title {
    color: var(--color-primary-dark);
}

.contact-desc {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 10px;
}

.contact-subdesc {
    font-size: 14px;
    color: var(--color-text-light);
}

.contact-card:hover .contact-subdesc {
    color: rgba(255, 255, 255, 0.9);
}

.contact-card-sms:hover .contact-subdesc {
    color: rgba(26, 35, 126, 0.8);
}

.contact-notice {
    text-align: center;
    color: var(--color-text);
    font-size: 16px;
    font-weight: 500;
    margin-top: 25px;
    padding: 15px;
    background-color: rgba(26, 35, 126, 0.05);
    border-radius: 8px;
    border-left: 4px solid var(--color-primary);
}

/* FAQ 섹션 */
.faq {
    background-color: var(--color-white);
}

.faq-list {
    max-width: 800px;
    margin: 40px auto 0;
}

.faq-item {
    background-color: var(--color-white);
    border: 1px solid #e0e0e0;
    border-radius: var(--border-radius);
    margin-bottom: 15px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item:hover {
    border-color: var(--color-primary);
}

.faq-question {
    padding: 20px 25px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    font-size: 16px;
    color: var(--color-primary);
    transition: background-color 0.3s ease;
}

.faq-question:hover {
    background-color: var(--color-bg-light);
}

.faq-toggle {
    font-size: 24px;
    font-weight: 300;
    color: var(--color-accent);
    transition: transform 0.3s ease;
    flex-shrink: 0;
    margin-left: 20px;
}

.faq-item.active .faq-toggle {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    padding: 0 25px;
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 0 25px 20px;
}

.faq-answer p {
    color: var(--color-text-light);
    line-height: 1.8;
    font-size: 15px;
}

.faq-answer p strong {
    color: var(--color-primary);
    font-weight: 700;
    background-color: rgba(0, 229, 255, 0.15);
    padding: 2px 6px;
    border-radius: 4px;
}

/* 실시간 거래 현황 섹션 */
.real-time-status {
    background-color: var(--color-bg-light);
}

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

.status-title {
    font-size: 32px;
    font-weight: 700;
    color: #e91e63;
    margin-bottom: 15px;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

.status-subtitle {
    font-size: 15px;
    color: var(--color-text-light);
    margin-top: 10px;
}

.status-table-wrapper {
    overflow-x: auto;
    box-shadow: var(--shadow);
    border-radius: var(--border-radius);
    border: 1px solid #fce4ec;
    background-color: var(--color-white);
}

.status-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.status-table thead {
    background: linear-gradient(135deg, #ec4899 0%, #f43f5e 100%);
    color: var(--color-white);
}

.status-table thead th {
    padding: 15px 20px;
    text-align: left;
    font-weight: 600;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-table tbody {
    background-color: var(--color-white);
}

.status-table tbody tr {
    border-bottom: 1px solid #f3f4f6;
    transition: background-color 0.2s ease;
}

.status-table tbody tr:hover {
    background-color: #fef3f8;
}

.status-table tbody tr:last-child {
    border-bottom: none;
}

.status-table tbody td {
    padding: 15px 20px;
    color: var(--color-text);
}

.status-table tbody td .status-badge {
    display: inline-block;
    padding: 5px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}

.status-badge.completed {
    background-color: #dcfce7;
    color: #166534;
}

.status-badge.processing {
    background-color: #fef3c7;
    color: #92400e;
}

.status-badge.pending {
    background-color: #e0e7ff;
    color: #3730a3;
}

.status-time {
    color: var(--color-text-light);
    font-size: 12px;
}

/* 푸터 */
.footer {
    background-color: var(--color-primary-dark);
    color: var(--color-white);
    padding: 60px 20px 40px;
}

.footer-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.footer-logo {
    margin-bottom: 30px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.footer-logo-image {
    height: 50px;
    width: auto;
    object-fit: contain;
    display: block;
    opacity: 0.9;
    transition: opacity 0.3s ease;
}

.footer-logo-image:hover {
    opacity: 1;
}

.footer-info {
    margin-bottom: 30px;
}

.footer-info p {
    margin-bottom: 10px;
    font-size: 14px;
    line-height: 1.8;
}

.footer-info strong {
    font-weight: 600;
    margin-right: 10px;
}

.footer-copyright {
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.footer-copyright p {
    font-size: 14px;
    margin-bottom: 5px;
}

.footer-notice {
    font-size: 12px;
    opacity: 0.7;
    margin-top: 10px;
}

/* 반응형 디자인 */
@media (max-width: 768px) {
    .hero-logo {
        max-width: 250px;
        margin-bottom: 20px;
    }

    .hero-title {
        font-size: 32px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .hero-cta {
        flex-direction: column;
    }

    .btn-large {
        width: 100%;
    }

    .nav {
        gap: 15px;
    }

    .nav-link {
        font-size: 14px;
    }

    .section-title {
        font-size: 28px;
    }

    .section-subtitle {
        font-size: 16px;
    }

    .features-grid,
    .process-steps {
        grid-template-columns: 1fr;
    }

    .contact-cards {
        grid-template-columns: 1fr;
    }

    .notice-box {
        flex-direction: column;
        text-align: center;
    }

    .hero {
        padding: 140px 20px 80px;
    }

    .section {
        padding: 60px 20px;
    }

    .header-content {
        flex-direction: column;
        gap: 15px;
    }

    .nav {
        justify-content: center;
    }

    .logo-image {
        height: 35px;
    }

    .footer-logo-image {
        height: 40px;
    }

    .review-content {
        padding: 25px 20px;
    }

    .review-user-name {
        font-size: 16px;
    }

    .review-text {
        font-size: 15px;
    }
}

@media (max-width: 480px) {
    .hero-logo {
        max-width: 200px;
        margin-bottom: 15px;
    }

    .hero-title {
        font-size: 26px;
    }

    .tag {
        font-size: 12px;
        padding: 6px 15px;
    }

    .feature-card,
    .step-card,
    .contact-card {
        padding: 30px 20px;
    }

    .section-title {
        font-size: 24px;
    }

    .logo-image {
        height: 30px;
    }

    .footer-logo-image {
        height: 35px;
    }

    .review-section {
        margin-top: 40px;
    }

    .review-content {
        padding: 20px 15px;
    }

    .review-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .review-user {
        width: 100%;
    }

    .review-user-name {
        font-size: 15px;
    }

    .review-text {
        font-size: 14px;
    }

    .review-user-avatar {
        width: 40px;
        height: 40px;
        font-size: 18px;
    }
}

/* 팝업 스타일 */
.popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    overflow-y: auto;
    padding: 20px;
}

.popup-overlay.show {
    opacity: 1;
    visibility: visible;
}

.popup-container {
    position: relative;
    max-width: 500px;
    width: 90%;
    max-height: 80vh;
    background-color: var(--color-white);
    border-radius: var(--border-radius);
    padding: 15px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    transform: scale(0.9);
    transition: transform 0.3s ease;
    overflow-y: auto;
}

.popup-overlay.show .popup-container {
    transform: scale(1);
}

.popup-close {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 35px;
    height: 35px;
    border: none;
    background-color: rgba(0, 0, 0, 0.5);
    color: var(--color-white);
    font-size: 24px;
    font-weight: 300;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    transition: background-color 0.3s ease;
    line-height: 1;
}

.popup-close:hover {
    background-color: rgba(0, 0, 0, 0.7);
}

.popup-link {
    display: block;
    text-decoration: none;
    cursor: pointer;
}

.popup-image {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 8px;
}

.popup-buttons {
    display: flex;
    gap: 10px;
    margin-top: 20px;
    justify-content: center;
}

.popup-btn {
    padding: 12px 24px;
    border: none;
    border-radius: var(--border-radius);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: inherit;
}

.popup-btn-close {
    background-color: var(--color-bg);
    color: var(--color-text);
}

.popup-btn-close:hover {
    background-color: #e0e0e0;
}

.popup-btn-primary {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.popup-btn-primary:hover {
    background-color: var(--color-primary-dark);
}

@media (max-width: 768px) {
    .popup-container {
        padding: 15px;
        max-width: 90%;
        max-height: 75vh;
    }

    .popup-buttons {
        flex-direction: column;
    }

    .popup-btn {
        width: 100%;
    }

    .popup-close {
        width: 30px;
        height: 30px;
        font-size: 20px;
        top: 5px;
        right: 5px;
    }
}

@media (max-width: 480px) {
    .popup-container {
        max-width: 95%;
        padding: 12px;
        max-height: 70vh;
    }
}