/* 기본 스타일 */
:root {
    --primary-color: #222222;
    --secondary-color: #4279C2;
    --accent-color: #EAF4FF;
    --text-color: #222222;
    --light-text: #444444;
    --background-color: #F7FAFC;
    --dark-bg: #222222;
    --dark-text: #FFFFFF;
    --transition: 0.3s cubic-bezier(.4,0,.2,1);
    --section-opacity: 1;
    --parallax-speed: 0.3;
}

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

html {
    scroll-behavior: smooth;
}

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

/* Parallax 효과를 위한 기본 설정 */
.parallax-section {
    position: relative;
    overflow: hidden;
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

.parallax-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    z-index: -1;
}

.parallax-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(66, 121, 194, 0.1) 0%, rgba(3, 76, 174, 0.2) 100%);
    z-index: -1;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

/* 헤더 스타일 */
header {
    background-color: rgba(247, 250, 252, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

header.sticky {
    background-color: rgba(255, 255, 255, 0.98);
    box-shadow: 0 4px 30px rgba(66, 121, 194, 0.15);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1rem;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 1.5rem;
}

.nav-links li {
    margin-left: 0;
}

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

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

.burger {
    display: none;
    cursor: pointer;
}

.burger div {
    width: 25px;
    height: 3px;
    background-color: var(--primary-color);
    margin: 5px;
    transition: all 0.3s ease;
}

/* 언어 선택 버튼 */
.language-selector {
    display: flow;
    gap: 10px;
    margin-left: 20px;
}

.lang-btn {
    padding: 5px 10px;
    border: 1px solid var(--primary-color);
    background: transparent;
    color: var(--primary-color);
    border-radius: 5px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

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

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

/* 히어로 섹션 */
#hero {
    background: linear-gradient(135deg, rgba(3,76,174,0.4), rgba(66,121,194,0.8)), url('images/main.jpeg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    height: 100vh;
    display: flex;
    align-items: center;
    text-align: center;
    color: white;
    position: relative;
    padding-top: 80px;
    overflow: hidden;
}

#hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(66, 121, 194, 0.3), rgba(3, 76, 174, 0.4));
    z-index: 1;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 3rem 20px;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(14px);
    border-radius: 28px;
    position: relative;
    z-index: 2;
    box-shadow: 0 0 120px 0 rgba(66,121,194,0.07), 0 0 180px 0 rgba(0,0,0,0.06);
}

.hero-content::before {
    content: '';
    position: absolute;
    top: -80px;
    left: -80px;
    right: -80px;
    bottom: -80px;
    background: radial-gradient(ellipse at center, rgba(255,255,255,0.10) 0%, rgba(255,255,255,0.03) 70%, transparent 100%);
    border-radius: 80px;
    z-index: -1;
    pointer-events: none;
    filter: blur(32px);
}

.hero-content::after {
    content: '';
    position: absolute;
    top: -160px;
    left: -160px;
    right: -160px;
    bottom: -160px;
    background: radial-gradient(ellipse at center, rgba(255,255,255,0.06) 0%, rgba(255,255,255,0.01) 80%, transparent 100%);
    border-radius: 160px;
    z-index: -2;
    pointer-events: none;
    filter: blur(64px);
}

.hero-logo {
    text-align: center;
    margin-bottom: 2rem;
}

.hero-image {
    width: 180px;
    height: 120px;
    object-fit: contain;
    /* border-radius: 20px; */
    /* box-shadow: 0 10px 30px rgba(255, 255, 255, 0.3); */
    /* background: rgba(255, 255, 255, 0.1); */
    /* backdrop-filter: blur(5px); */
    /* border: 2px solid rgba(255, 255, 255, 0.2); */
    /* transition: transform 0.3s ease, box-shadow 0.3s ease; */
}

.hero-image:hover {
    /* transform: scale(1.05);
    box-shadow: 0 15px 40px rgba(255, 255, 255, 0.4); */
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

.cta-button {
    display: inline-block;
    padding: 1rem 2rem;
    background-color: var(--accent-color);
    color: var(--primary-color);
    text-decoration: none;
    border-radius: 30px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.cta-button:hover {
    background-color: var(--primary-color);
    color: var(--accent-color);
    transform: translateY(-2px);
}

/* 소개 섹션 */
#about {
    padding: 100px 0;
    background: linear-gradient(135deg, #EAF4FF 0%, #F0F8FF 50%, #E6F3FF 100%);
    position: relative;
    overflow: hidden;
    background-attachment: fixed;
    background-size: cover;
}

#about::before {
    content: '';
    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"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="%234279C2" opacity="0.1"/><circle cx="75" cy="75" r="1" fill="%234279C2" opacity="0.1"/><circle cx="50" cy="10" r="0.5" fill="%234279C2" opacity="0.1"/><circle cx="10" cy="60" r="0.5" fill="%234279C2" opacity="0.1"/><circle cx="90" cy="40" r="0.5" fill="%234279C2" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
    z-index: 0;
    background-attachment: fixed;
    background-size: cover;
}

.profile-section {
    display: flex;
    align-items: center;
    gap: 50px;
    max-width: 1000px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
    background: rgba(255, 255, 255, 0.8);
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(66, 121, 194, 0.1);
    backdrop-filter: blur(10px);
    flex-direction: column;
    text-align: center;
}

.profile-image {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    object-fit: cover;
    border: 5px solid var(--primary-color);
}

.profile-content {
    flex: 1;
    text-align: left;
}

.profile-content h2 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 2rem;
}

.subtitle {
    color: var(--light-text);
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
}

.credentials {
    text-align: left;
}

.qualifications {
    margin: 2rem 0;
    padding: 1.5rem;
    background-color: rgba(74, 139, 109, 0.1);
    border-radius: 10px;
}

.qualifications h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.qualifications ul {
    list-style: none;
    padding-left: 1rem;
}

.qualifications li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.8rem;
    color: var(--text-color);
}

.qualifications li:before {
    content: "•";
    color: var(--primary-color);
    position: absolute;
    left: 0;
    font-size: 1.2rem;
}

.credentials p {
    margin-bottom: 1rem;
    line-height: 1.8;
}

/* 기질상담 섹션 */
#temperament {
    padding: 100px 0;
    background-color: white;
}

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

.temperament-content > p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: var(--light-text);
    line-height: 1.8;
}

.temperament-content h3 {
    color: var(--primary-color);
    margin: 3rem 0 2rem;
    font-size: 1.8rem;
}

.temperament-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.feature-card {
    background-color: var(--accent-color);
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    transition: transform 0.3s ease;
}

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

.feature-card i {
    font-size: 2.5rem;
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
}

.feature-card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.4rem;
}

.example {
    background-color: var(--accent-color);
    padding: 2rem;
    border-radius: 15px;
    margin: 3rem 0;
    font-style: italic;
    color: var(--light-text);
}

.highlight {
    font-size: 1.2rem;
    color: var(--primary-color);
    font-weight: 600;
    margin: 2rem 0;
    line-height: 1.6;
}

/* 치유 섹션 */
#healing {
    padding: 100px 0;
    background-color: var(--accent-color);
}

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

.healing-content p {
    font-size: 1.2rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    color: var(--light-text);
}

/* 변화 섹션 */
#change {
    padding: 100px 0;
    background-color: white;
}

.change-content {
    max-width: 800px;
    margin: 0 auto;
}

.change-content ul {
    list-style: none;
    padding: 0;
}

.change-content li {
    margin-bottom: 1.5rem;
    padding: 1.5rem;
    background-color: var(--accent-color);
    border-radius: 10px;
    font-size: 1.1rem;
    line-height: 1.6;
}

.change-content strong {
    color: var(--primary-color);
    display: block;
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

/* 서비스 섹션 */
#services {
    padding: 100px 0;
    background-color: var(--accent-color);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.service-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    padding: 40px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(66, 121, 194, 0.1);
    transition: all 0.3s ease;
    border: 1px solid rgba(66, 121, 194, 0.1);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--secondary-color), var(--primary-color));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(66, 121, 194, 0.2);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card i {
    font-size: 3rem;
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1.5rem;
}

.service-card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.4rem;
}

.service-card p {
    color: var(--light-text);
    line-height: 1.8;
    text-align: left;
}

/* 연락처 섹션 */
#contact {
    padding: 100px 0;
    background-color: white;
}

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

.contact-info {
    display: grid;
    gap: 30px;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 15px;
}

.info-item i {
    font-size: 1.5rem;
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.contact-form {
    display: grid;
    gap: 20px;
}

.contact-form input,
.contact-form textarea {
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
}

.contact-form textarea {
    height: 150px;
    resize: vertical;
}

.submit-button {
    background-color: var(--secondary-color);
    color: white;
    padding: 15px 30px;
    border: none;
    border-radius: 30px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(66, 121, 194, 0.3);
}

.submit-button:hover {
    background-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(66, 121, 194, 0.4);
}

.contact-message {
    text-align: center;
    margin-top: 50px;
    padding: 30px;
    background-color: var(--accent-color);
    border-radius: 15px;
}

.contact-message .highlight {
    font-size: 1.4rem;
    margin-bottom: 1rem;
}

.contact-message p {
    color: var(--light-text);
    line-height: 1.8;
}

/* 푸터 */
footer {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 2rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

footer::before {
    content: '';
    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"><defs><pattern id="footer-pattern" width="50" height="50" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="10" cy="10" r="0.5" fill="rgba(255,255,255,0.1)"/><circle cx="40" cy="40" r="0.5" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23footer-pattern)"/></svg>');
    opacity: 0.3;
    z-index: 0;
}

footer .container {
    position: relative;
    z-index: 1;
}

/* 모바일에서 footer 텍스트 줄바꿈 */
@media (max-width: 768px) {
    footer p {
        white-space: normal;
        word-break: keep-all;
        text-align: center;
        line-height: 1.5;
    }
}

/* 갤러리 섹션 */
#gallery {
    padding: 120px 0 80px 0;
    background: linear-gradient(135deg, #EAF4FF 0%, #F0F8FF 50%, #E6F3FF 100%);
    position: relative;
    overflow: hidden;
    background-attachment: fixed;
    background-size: cover;
}

#gallery::before {
    content: '';
    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"><defs><pattern id="circles" width="30" height="30" patternUnits="userSpaceOnUse"><circle cx="15" cy="15" r="2" fill="%234279C2" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23circles)"/></svg>');
    opacity: 0.3;
    z-index: 0;
    background-attachment: fixed;
    background-size: cover;
}

#gallery .container {
    position: relative;
    z-index: 1;
}

#gallery h2 {
    text-align: center;
    color: var(--primary-color);
    margin-bottom: 50px;
    font-size: 2rem;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
    padding: 20px;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
    aspect-ratio: 1;
}

.gallery-item:hover {
    transform: scale(1.05);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.gallery-item:hover img {
    transform: scale(1.1);
}

/* 반응형 디자인 */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        gap: 0;
    }
    
    .nav-links li {
        margin: 10px 0;
    }
    
    .burger {
        display: block;
    }
    
    .language-selector {
        display: none;
    }
    
    .nav-active {
        display: flex;
        flex-direction: column;
        position: absolute;
        right: 0;
        top: 70px;
        background-color: white;
        width: 100%;
        align-items: center;
        padding: 20px 0;
        box-shadow: 0 2px 5px rgba(0,0,0,0.1);
        z-index: 1000;
    }
    
    .language-selector {
        display: none;
        flex-direction: row;
        gap: 10px;
        margin: 20px 0;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .language-selector .lang-btn {
        margin: 0;
        font-size: 0.9rem;
        padding: 5px 10px;
    }
    
    .profile-section {
        flex-direction: column;
        text-align: center;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .temperament-content > p,
    .healing-content p,
    .change-content li {
        font-size: 1rem;
    }
    
    .highlight {
        font-size: 1.1rem;
    }
    
    .gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: 10px;
        padding: 10px;
    }
}

/* 네비게이션 활성화 */
.nav-active {
    display: flex;
    flex-direction: column;
    position: absolute;
    right: 0;
    top: 70px;
    background-color: white;
    width: 100%;
    align-items: center;
    padding: 20px 0;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    z-index: 1000;
}

.nav-active li {
    margin: 10px 0;
}

/* 애니메이션 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInFromLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInFromRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* 애니메이션 클래스 */
.animate-in {
    animation: fadeIn 0.8s ease-out forwards;
}

.slide-in-left {
    animation: slideInFromLeft 0.8s ease-out forwards;
}

.slide-in-right {
    animation: slideInFromRight 0.8s ease-out forwards;
}

.scale-in {
    animation: scaleIn 0.6s ease-out forwards;
}

/* 초기 상태 (애니메이션 전) */
.service-card, .impact-item, .gallery-item, .mentor-card {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
    will-change: opacity, transform;
}

.service-card.animate-in, .impact-item.animate-in, .gallery-item.animate-in, .mentor-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

/* 활동성과 카드 특별 스타일 */
.impact-item {
    background: var(--accent-color);
    border-radius: 16px;
    box-shadow: 0 2px 8px rgba(3,76,174,0.07);
    padding: 2rem 2.5rem;
    min-width: 240px;
    max-width: 320px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--primary-color);
    position: relative;
    z-index: 2;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.impact-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(3,76,174,0.15);
}

.impact-item i {
    font-size: 2.2rem;
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
}

/* 스크롤 진행률 표시 */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(90deg, var(--secondary-color), var(--primary-color));
    z-index: 1001;
    transition: width 0.1s ease;
}

/* 카페 섹션 스타일 */
.cafe-section {
    padding: 80px 0;
    background-color: var(--accent-color);
    text-align: center;
}

.cafe-content {
    max-width: 600px;
    margin: 0 auto;
}

.cafe-content h2 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-size: 2rem;
}

.cafe-content p {
    color: var(--light-text);
    margin-bottom: 2rem;
    font-size: 1.1rem;
    line-height: 1.6;
}

.cafe-button {
    display: inline-flex;
    align-items: center;
    padding: 12px 24px;
    background-color: #03C75A;
    color: white;
    text-decoration: none;
    border-radius: 30px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
}

.cafe-button i {
    margin-right: 10px;
    background: linear-gradient(135deg, #ffffff 0%, #f0f0f0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.cafe-button:hover {
    background-color: #02a64b;
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

@media (max-width: 768px) {
    .cafe-section {
        padding: 60px 0;
    }
    
    .cafe-content h2 {
        font-size: 1.8rem;
    }
    
    .cafe-content p {
        font-size: 1rem;
    }
    
    .cafe-button {
        padding: 10px 20px;
        font-size: 1rem;
    }
}

/* 학교 출강 및 교사 연수 섹션 */
.school-lectures-section {
    padding: 100px 0;
    background-color: var(--background-color);
    text-align: center;
}

.school-lectures-section h2 {
    color: red;
    margin-bottom: 2rem;
    font-size: 2rem;
}

.school-lectures-section ul {
    list-style: none;
    padding: 0;
    max-width: 600px;
    margin: 0 auto;
}

.school-lectures-section li {
    font-size: 1.1rem;
    margin-bottom: 0.8rem;
    color: var(--text-color);
}

#mentors {
    padding: 100px 0 60px 0;
    background-color: var(--accent-color);
    text-align: center;
}
.mentors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
    justify-items: center;
}
.mentor-card {
    background: #fff;
    border-radius: 16px;
    padding: 2rem 1.2rem;
    box-shadow: 0 2px 8px rgba(74,139,109,0.07);
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
    width: 100%;
    max-width: 220px;
}
.mentor-card img {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 1rem;
    border: 3px solid var(--primary-color);
}
#mentors h2, #mentors p {
    text-align: center;
}
@media (max-width: 500px) {
    .mentor-card img {
        width: 50px;
        height: 50px;
    }
}

#programs {
    padding: 80px 0 80px 0;
    background: linear-gradient(135deg, #FFFFFF 0%, #F8FBFF 50%, #F0F8FF 100%);
    position: relative;
    overflow: hidden;
    background-attachment: fixed;
    background-size: cover;
}

#programs::before {
    content: '';
    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"><defs><pattern id="dots" width="20" height="20" patternUnits="userSpaceOnUse"><circle cx="10" cy="10" r="1" fill="%234279C2" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23dots)"/></svg>');
    opacity: 0.5;
    z-index: 0;
    background-attachment: fixed;
    background-size: cover;
}

#programs .container {
    position: relative;
    z-index: 1;
}

#impact {
    padding: 80px 0 80px 0;
    background: linear-gradient(135deg, #EAF4FF 0%, #F0F8FF 50%, #E6F3FF 100%);
    position: relative;
    overflow: hidden;
    background-attachment: fixed;
    background-size: cover;
}

#impact::before {
    content: '';
    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"><defs><pattern id="waves" width="50" height="50" patternUnits="userSpaceOnUse"><path d="M0 25 Q12.5 15 25 25 T50 25" stroke="%234279C2" stroke-width="1" fill="none" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23waves)"/></svg>');
    opacity: 0.3;
    z-index: 0;
    background-attachment: fixed;
    background-size: cover;
}

#impact .container {
    position: relative;
    z-index: 1;
}

#impact .impact-list {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    justify-content: center;
    margin-top: 2.5rem;
}

.impact-item {
    background: var(--accent-color);
    border-radius: 16px;
    box-shadow: 0 2px 8px rgba(3,76,174,0.07);
    padding: 2rem 2.5rem;
    min-width: 240px;
    max-width: 320px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--primary-color);
    position: relative;
    z-index: 2;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.impact-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(3,76,174,0.15);
}

.impact-item i {
    font-size: 2.2rem;
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
}

@media (max-width: 900px) {
    #impact .impact-list {
        flex-direction: column;
        align-items: center;
        gap: 1.5rem;
    }
    .impact-item {
        width: 100%;
        min-width: 0;
        max-width: 100%;
    }
}

#join {
    padding: 120px 0 80px 0;
    background: linear-gradient(135deg, #EAF4FF 0%, #F0F8FF 50%, #E6F3FF 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
    background-attachment: fixed;
    background-size: cover;
}

#join::before {
    content: '';
    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"><defs><pattern id="stars" width="40" height="40" patternUnits="userSpaceOnUse"><circle cx="20" cy="20" r="1" fill="%234279C2" opacity="0.1"/><circle cx="10" cy="10" r="0.5" fill="%234279C2" opacity="0.1"/><circle cx="30" cy="30" r="0.5" fill="%234279C2" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23stars)"/></svg>');
    opacity: 0.3;
    z-index: 0;
    background-attachment: fixed;
    background-size: cover;
}

#join .container {
    position: relative;
    z-index: 1;
}

#join .cta-button {
    background: var(--secondary-color);
    color: #fff;
    border: none;
}

#join .cta-button:hover {
    background: var(--primary-color);
    color: #fff;
}

/* 연간 계획서 섹션 */
#plan {
    padding: 120px 0 80px 0;
    background: linear-gradient(135deg, #FFFFFF 0%, #F8FBFF 50%, #F0F8FF 100%);
    position: relative;
    overflow: hidden;
    background-attachment: fixed;
    background-size: cover;
}

#plan::before {
    content: '';
    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"><defs><pattern id="grid" width="25" height="25" patternUnits="userSpaceOnUse"><path d="M25 0 L0 0 0 25" stroke="%234279C2" stroke-width="0.5" fill="none" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.4;
    z-index: 0;
    background-attachment: fixed;
    background-size: cover;
}

#plan .container {
    position: relative;
    z-index: 1;
}

#plan h2 {
    text-align: center;
    margin-bottom: 3rem;
    color: var(--primary-color);
    font-size: 2.5rem;
    font-weight: 700;
}

.plan-content {
    padding: 2rem 0;
    text-align: center;
}

.plan-table-container {
    max-width: 1000px;
    margin: 0 auto;
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    overflow: hidden;
}

.plan-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    font-size: 0.9rem;
}

.plan-table th {
    background: linear-gradient(135deg, var(--secondary-color), #2c5aa0);
    color: white;
    padding: 15px 10px;
    text-align: center;
    font-weight: 600;
    border: none;
}

.plan-table td {
    padding: 12px 10px;
    text-align: left;
    border-bottom: 1px solid #e0e0e0;
    vertical-align: top;
}

.plan-table tr:nth-child(even) {
    background-color: #f8f9fa;
}

.plan-table tr:hover {
    background-color: #e3f2fd;
    transition: background-color 0.3s ease;
}

.plan-table td:first-child {
    background: linear-gradient(135deg, #f0f8ff, #e6f3ff);
    font-weight: 600;
    text-align: center;
    color: var(--secondary-color);
}

.plan-summary {
    padding: 2rem;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    text-align: left;
}

.plan-summary h3 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.plan-summary ul {
    list-style: none;
    padding: 0;
    margin-bottom: 2rem;
}

.plan-summary li {
    padding: 8px 0;
    border-bottom: 1px solid #dee2e6;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.plan-summary li:last-child {
    border-bottom: none;
}

.plan-summary strong {
    color: var(--primary-color);
}

.plan-contact {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    margin-top: 1rem;
}

.plan-contact p {
    margin: 10px 0;
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
}

.plan-contact i {
    color: var(--secondary-color);
    width: 20px;
}

@media (max-width: 768px) {
    .plan-table {
        font-size: 0.8rem;
    }
    
    .plan-table th,
    .plan-table td {
        padding: 8px 5px;
    }
    
    .plan-summary {
        padding: 1rem;
    }
    
    .plan-summary li {
        flex-direction: column;
        align-items: flex-start;
        gap: 5px;
    }
}

/* 모바일에서 background-attachment 수정 */
@media (max-width: 768px) {
    #hero {
        background-attachment: scroll;
        background-size: cover;
        background-position: center;
        background-repeat: no-repeat;
    }
}

.plan-contact i {
    color: var(--secondary-color);
    width: 20px;
}

.qa-section {
    margin: 2rem 0;
}

.qa-section .qa-item {
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    border-left: 4px solid var(--secondary-color);
}

.qa-section .qa-item h4 {
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
    font-size: 1rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.qa-section .qa-item h4 i {
    color: var(--secondary-color);
    font-size: 1.1rem;
}

.qa-section .qa-item p {
    margin: 0;
    line-height: 1.6;
    color: var(--text-color);
}

.qa-section .qa-item strong {
    color: var(--primary-color);
}

@media (max-width: 768px) {
    .plan-table {
        font-size: 0.8rem;
    }
    
    .plan-table th,
    .plan-table td {
        padding: 8px 5px;
    }
    
    .plan-summary {
        padding: 1rem;
    }
    
    .plan-summary li {
        flex-direction: column;
        align-items: flex-start;
        gap: 5px;
    }
    
    .qa-section .qa-item {
        padding: 0.8rem;
        margin-bottom: 1rem;
    }
    
    .qa-section .qa-item h4 {
        font-size: 0.9rem;
    }
}