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

body {
    font-family: 'Noto Sans KR', 'Arial', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

/* 헤더 스타일 */
header {
    background: linear-gradient(135deg, #1a73e8, #4285f4);
    color: white;
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 2rem;
    font-weight: bold;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.1);
}

nav {
    display: flex;
    gap: 2rem;
}

nav a {
    color: white;
    text-decoration: none;
    font-size: 1.1rem;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: all 0.3s ease;
}

nav a:hover {
    background-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

/* 메인 섹션 스타일 */
.main-content {
    margin-top: 80px;
    padding: 2rem 0;
}

/* 히어로 섹션 */
.hero {
    background: linear-gradient(135deg, #1a73e8, #4285f4);
    color: white;
    padding: 6rem 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><rect width="1" height="1" fill="rgba(255,255,255,0.1)"/></svg>');
    opacity: 0.1;
}

.hero h2 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.hero p {
    font-size: 1.3rem;
    max-width: 800px;
    margin: 0 auto;
    opacity: 0.9;
}

/* 카드 스타일 */
.card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

/* 소개 페이지 스타일 */
.intro-section {
    max-width: 1200px;
    margin: 4rem auto;
    padding: 0 2rem;
}

.intro-header {
    text-align: center;
    margin-bottom: 4rem;
}

.intro-header h1 {
    color: #1a73e8;
    font-size: 3rem;
    margin-bottom: 1.5rem;
    position: relative;
    display: inline-block;
}

.intro-header h1::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: #1a73e8;
    border-radius: 2px;
}

.intro-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
}

.intro-card {
    background: white;
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

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

.intro-card h3 {
    color: #1a73e8;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

/* 미션 비전 섹션 */
.mission-vision {
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    padding: 6rem 0;
    margin: 4rem 0;
}

.mission-vision-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    text-align: center;
}

.mission-vision h2 {
    color: #1a73e8;
    margin-bottom: 2rem;
    font-size: 2.5rem;
}

/* CTA 섹션 */
.cta {
    background: linear-gradient(135deg, #1a73e8, #4285f4);
    color: white;
    text-align: center;
    padding: 4rem 2rem;
}

.cta h3 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.cta-button {
    display: inline-block;
    background-color: white;
    color: #1a73e8;
    padding: 1rem 2.5rem;
    border-radius: 30px;
    text-decoration: none;
    font-weight: bold;
    margin-top: 2rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

/* 푸터 스타일 */
footer {
    background-color: #1a73e8;
    color: white;
    text-align: center;
    padding: 3rem 2rem;
    margin-top: 4rem;
}

/* 반응형 디자인 */
@media (max-width: 768px) {
    .header-container {
        flex-direction: column;
        gap: 1rem;
    }
    
    nav {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .hero h2 {
        font-size: 2rem;
    }
    
    .intro-header h1 {
        font-size: 2rem;
    }
}