/* ===== 기본 설정 ===== */
:root {
    --primary: #0891b2;
    --primary-dark: #0e7490;
    --secondary: #1e40af;
    --accent: #d4a574;
    --accent-light: #e8c9a8;
    --text: #1f2937;
    --text-light: #6b7280;
    --bg: #ffffff;
    --bg-alt: #f8fafc;
    --bg-dark: #0f172a;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans KR', sans-serif;
    color: var(--text);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== 네비게이션 ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo img {
    height: 50px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text);
    font-weight: 500;
    transition: color 0.3s;
}

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

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text);
    transition: 0.3s;
}

/* ===== 히어로 섹션 ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    position: relative;
    padding: 100px 20px;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="40" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></svg>');
    background-size: 100px;
    opacity: 0.5;
}

.hero-content {
    position: relative;
    z-index: 1;
    color: white;
}

.hero-logo {
    width: 180px;
    margin-bottom: 30px;
    filter: drop-shadow(0 4px 20px rgba(0, 0, 0, 0.2));
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 15px;
    font-weight: 700;
}

.slogan {
    font-size: 1.3rem;
    color: var(--accent-light);
    margin-bottom: 20px;
    font-style: italic;
}

.hero-desc {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 30px;
    line-height: 1.8;
}

.btn-primary {
    display: inline-block;
    padding: 15px 40px;
    background: var(--accent);
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 500;
    transition: all 0.3s;
}

.btn-primary:hover {
    background: var(--accent-light);
    color: var(--text);
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

/* ===== 섹션 공통 ===== */
.section {
    padding: 100px 0;
}

.section-title {
    text-align: center;
    font-size: 2.2rem;
    margin-bottom: 60px;
    color: var(--text);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    margin: 15px auto 0;
    border-radius: 2px;
}

/* ===== 소개 섹션 ===== */
.about {
    background: var(--bg);
}

.vision-mission {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-bottom: 60px;
}

.vm-card {
    background: var(--bg-alt);
    padding: 40px;
    border-radius: 20px;
    text-align: center;
    transition: transform 0.3s;
}

.vm-card:hover {
    transform: translateY(-5px);
}

.vm-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 20px;
    color: var(--primary);
}

.vm-icon svg {
    width: 100%;
    height: 100%;
}

.vm-card h3 {
    color: var(--primary);
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.vm-card p {
    color: var(--text);
    font-size: 1.1rem;
    line-height: 1.6;
}

/* 핵심가치 */
.core-values {
    text-align: center;
    margin-bottom: 60px;
}

.core-values h3 {
    font-size: 1.5rem;
    margin-bottom: 30px;
}

.highlight {
    color: var(--primary);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.value-item {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    padding: 30px 20px;
    border-radius: 15px;
    color: white;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.value-letter {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-light);
}

.value-word {
    font-size: 1rem;
    font-weight: 500;
}

.value-meaning {
    font-size: 0.9rem;
    opacity: 0.8;
}

/* 조직도 */
.organization {
    margin-bottom: 60px;
}

.organization h3 {
    text-align: center;
    font-size: 1.5rem;
    margin-bottom: 40px;
}

.org-chart {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.org-level {
    display: flex;
    gap: 20px;
    align-items: center;
}

.org-box {
    background: var(--primary);
    color: white;
    padding: 15px 30px;
    border-radius: 10px;
    font-weight: 500;
    text-align: center;
    min-width: 120px;
}

.org-box.org-side {
    background: var(--secondary);
}

.org-box.org-dept {
    background: var(--bg-alt);
    color: var(--text);
    border: 2px solid var(--primary);
}

.org-line {
    width: 2px;
    height: 20px;
    background: var(--primary);
}

.org-bottom {
    gap: 15px;
}

/* 임원 소개 */
.executives h3 {
    text-align: center;
    font-size: 1.5rem;
    margin-bottom: 40px;
}

.exec-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.exec-card {
    text-align: center;
    padding: 30px 20px;
    background: var(--bg-alt);
    border-radius: 15px;
    transition: transform 0.3s;
}

.exec-card:hover {
    transform: translateY(-5px);
}

.exec-photo {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 50%;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.exec-photo svg {
    width: 50px;
    height: 50px;
}

.exec-card h4 {
    font-size: 1.2rem;
    margin-bottom: 5px;
}

.exec-title {
    color: var(--text-light);
}

.exec-desc {
    font-size: 0.85rem;
    color: var(--text-light);
    margin-top: 10px;
    line-height: 1.6;
}

.exec-chairman {
    border: 2px solid var(--accent);
    background: linear-gradient(to bottom, rgba(212, 165, 116, 0.08), var(--bg-alt));
}

.exec-photo-auditor {
    background: linear-gradient(135deg, var(--secondary), #4338ca) !important;
}

/* ===== 사업안내 섹션 ===== */
.business {
    background: var(--bg-alt);
}

.business-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 60px;
}

.business-card {
    background: white;
    padding: 40px 30px;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s;
}

.business-card:hover {
    transform: translateY(-10px);
}

.business-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
    color: white;
}

.business-icon svg {
    width: 30px;
    height: 30px;
}

.business-card h3 {
    font-size: 1.3rem;
    margin-bottom: 20px;
    color: var(--text);
}

.business-card ul {
    list-style: none;
}

.business-card li {
    padding: 8px 0;
    color: var(--text-light);
    position: relative;
    padding-left: 20px;
}

.business-card li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
}

/* 핵심 프로그램 */
.programs {
    text-align: center;
}

.programs h3 {
    font-size: 1.5rem;
    margin-bottom: 40px;
}

.program-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
}

.program-card {
    background: white;
    padding: 30px;
    border-radius: 15px;
    border-left: 4px solid var(--accent);
    text-align: left;
}

.program-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
}

.program-badge {
    background: var(--accent);
    color: white;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

.program-card h4 {
    color: var(--text);
    font-size: 1.2rem;
}

.program-card p {
    color: var(--text-light);
    line-height: 1.6;
}

/* ===== 연혁 섹션 ===== */
.history {
    background: var(--bg);
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto 60px;
    padding-left: 50px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(to bottom, var(--primary), var(--accent));
    border-radius: 3px;
}

.timeline-item {
    position: relative;
    margin-bottom: 40px;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -38px;
    top: 5px;
    width: 16px;
    height: 16px;
    background: var(--primary);
    border: 4px solid white;
    border-radius: 50%;
    box-shadow: 0 0 0 4px var(--primary);
}

.timeline-date {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 10px;
}

.timeline-content {
    background: var(--bg-alt);
    padding: 25px 30px;
    border-radius: 15px;
}

.timeline-content h4 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--text);
}

.timeline-content p,
.timeline-content li {
    color: var(--text-light);
}

.timeline-content ul {
    list-style: disc;
    margin-left: 20px;
    margin-top: 10px;
}

.timeline-content li {
    padding: 5px 0;
}

/* 성과 통계 */
.stats h3 {
    text-align: center;
    font-size: 1.5rem;
    margin-bottom: 40px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.stat-item {
    text-align: center;
    padding: 30px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 20px;
    color: white;
}

.stat-number {
    display: block;
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--accent-light);
}

.stat-label {
    font-size: 1rem;
    opacity: 0.9;
}

/* ===== 후원안내 섹션 ===== */
.support {
    background: var(--bg-alt);
}

.support-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.support-info h3,
.member-info h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--text);
}

.support-info > p {
    color: var(--text-light);
    margin-bottom: 30px;
    line-height: 1.8;
}

.account-box {
    background: white;
    padding: 30px;
    border-radius: 15px;
    margin-bottom: 25px;
    border: 2px solid var(--primary);
}

.account-box h4 {
    color: var(--primary);
    margin-bottom: 15px;
}

.bank {
    font-size: 1.1rem;
    color: var(--text);
    margin-bottom: 5px;
}

.account-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 10px;
    letter-spacing: 1px;
}

.account-holder {
    color: var(--text-light);
}

.benefit-box {
    background: white;
    padding: 25px;
    border-radius: 15px;
}

.benefit-box h4 {
    margin-bottom: 15px;
    color: var(--text);
}

.benefit-box ul {
    list-style: none;
}

.benefit-box li {
    padding: 8px 0;
    color: var(--text-light);
    padding-left: 25px;
    position: relative;
}

.benefit-box li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: 700;
}

.member-types {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.member-type {
    background: white;
    padding: 25px;
    border-radius: 15px;
    border-left: 4px solid var(--accent);
}

.member-type h4 {
    color: var(--primary);
    margin-bottom: 10px;
}

.member-type p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* ===== 오시는길 섹션 ===== */
.contact {
    background: var(--bg);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: start;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.info-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.info-item svg {
    width: 24px;
    height: 24px;
    color: var(--primary);
    flex-shrink: 0;
    margin-top: 3px;
}

.info-item h4 {
    font-size: 1rem;
    margin-bottom: 5px;
    color: var(--text);
}

.info-item p {
    color: var(--text-light);
}

.map-container {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
}

.map-container iframe {
    display: block;
}

/* ===== 푸터 ===== */
.footer {
    background: var(--bg-dark);
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding-bottom: 30px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 30px;
}

.footer-logo img {
    height: 60px;
    margin-bottom: 15px;
}

.footer-logo p {
    font-size: 1.1rem;
    font-weight: 500;
}

.footer-info p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 8px;
    font-size: 0.95rem;
}

.footer-bottom {
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
}

/* ===== 반응형 ===== */
@media (max-width: 1024px) {
    .values-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .exec-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .business-grid {
        grid-template-columns: 1fr;
    }

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

    .member-types {
        grid-template-columns: 1fr 1fr;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .support-content,
    .contact-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 20px;
        gap: 15px;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        transform: translateY(-150%);
        transition: transform 0.3s;
    }

    .nav-menu.active {
        transform: translateY(0);
    }

    .hamburger {
        display: flex;
    }

    .hero h1 {
        font-size: 1.8rem;
    }

    .slogan {
        font-size: 1rem;
    }

    .hero-desc {
        font-size: 0.95rem;
    }

    .section {
        padding: 60px 0;
    }

    .section-title {
        font-size: 1.8rem;
        margin-bottom: 40px;
    }

    .vision-mission {
        grid-template-columns: 1fr;
    }

    .values-grid {
        grid-template-columns: 1fr 1fr;
    }

    .exec-grid {
        grid-template-columns: 1fr 1fr;
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }

    .member-types {
        grid-template-columns: 1fr;
    }

    .footer-content {
        flex-direction: column;
        gap: 30px;
    }

    .org-bottom {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .values-grid {
        grid-template-columns: 1fr;
    }

    .exec-grid {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .stat-number {
        font-size: 2.5rem;
    }
}