/* CSS for KAIEDU clone */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@300;400;500;700&display=swap');

body {
    font-family: 'Noto Sans KR', sans-serif;
    color: #333;
    overflow-x: hidden;
    overflow-y: scroll;
}

a { text-decoration: none; color: inherit; }
a:hover { text-decoration: none; color: #0056b3; }

/* Navbar */
.navbar {
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    background: #fff;
    padding: 15px 0;
}
.navbar-brand {
    font-family: 'Noto Sans KR', sans-serif;
    font-weight: 700;
    color: #00469B !important;
}
.nav-link {
    font-size: 17px;
    font-weight: 500;
    color: #333 !important;
    margin: 0 10px;
}
.nav-link:hover {
    color: #00469B !important;
}

/* Hero Section */
.hero-section {
    position: relative;
    width: 100%;
    height: 600px;
    background: linear-gradient(rgba(0,0,0,0.4), rgba(0,0,0,0.4)), url('./images/main_img.jpg') no-repeat center center/cover;
    display: flex;
    align-items: center;
    color: #fff;
    text-align: center;
}
/* If main_img.jpg doesn't exist or is ski-related, we might want a fallback color or different image. 
   I'll assume the user might want me to provide a better image later or I'll use a gradient if image is missing.
*/
.hero-content {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}
.hero-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}
.hero-subtitle {
    font-size: 24px;
    font-weight: 400;
    margin-bottom: 40px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}
.btn-primary-custom {
    background-color: #00469B;
    border: none;
    padding: 15px 40px;
    font-size: 18px;
    font-weight: 700;
    border-radius: 50px;
    color: #fff;
    transition: 0.3s;
}
.btn-primary-custom:hover {
    background-color: #003377;
    color: #fff;
    transform: translateY(-2px);
}

/* Sections */
.section {
    padding: 80px 0;
}
.section-header {
    text-align: center;
    margin-bottom: 50px;
}
.section-title {
    font-size: 36px;
    font-weight: 700;
    color: #111;
    margin-bottom: 15px;
}
.section-desc {
    font-size: 18px;
    color: #666;
}

/* Program Cards */
.program-card {
    border: 1px solid #eee;
    border-radius: 12px;
    overflow: hidden;
    transition: 0.3s;
    background: #fff;
    height: 100%;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}
.program-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}
.card-img-top {
    height: 200px;
    object-fit: cover;
    background-color: #ddd;
}
.card-body {
    padding: 25px;
}
.card-badge {
    display: inline-block;
    padding: 5px 10px;
    background: #eef4ff;
    color: #00469B;
    border-radius: 4px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 10px;
}
.card-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 10px;
    color: #222;
}
.card-text {
    font-size: 15px;
    color: #666;
    line-height: 1.6;
}

/* Instructor Section */
.instructor-card {
    text-align: center;
    background: #f9f9f9;
    padding: 30px;
    border-radius: 12px;
    transition: 0.3s;
}
.instructor-img {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 20px;
    border: 3px solid #fff;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}
.instructor-name {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 5px;
}
.instructor-role {
    color: #00469B;
    font-weight: 500;
    margin-bottom: 15px;
}

/* Footer */
footer {
    background-color: #222;
    color: #bbb;
    padding: 60px 0 30px;
    text-align: left;
}
.footer-logo {
    color: #fff;
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 20px;
    display: inline-block;
}
.footer-info p {
    margin-bottom: 10px;
    font-size: 14px;
}
.footer-links a {
    color: #bbb;
    margin-right: 20px;
    font-size: 14px;
}
.footer-links a:hover {
    color: #fff;
}
.copyright {
    border-top: 1px solid #333;
    margin-top: 40px;
    padding-top: 20px;
    font-size: 13px;
    text-align: center;
}