:root {
    --primary-color: #0A2540; /* Deep Navy Blue */
    --secondary-color: #007A8A; /* Calming Teal */
    --accent-color: #00C4B6; /* Bright Teal for highlights */
    --text-main: #333333;
    --text-light: #666666;
    --bg-light: #F8FAFC;
    --white: #FFFFFF;
    --font-main: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, Roboto, 'Helvetica Neue', 'Segoe UI', 'Apple SD Gothic Neo', 'Noto Sans KR', 'Malgun Gothic', sans-serif;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

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

.section {
    padding: 100px 0;
}

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

.mt-3 { margin-top: 1rem; }

/* Navbar */
#navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: 0 2px 15px rgba(0,0,0,0.05);
    transition: var(--transition);
    padding: 20px 0;
}

#navbar.scrolled {
    padding: 12px 0;
    background: rgba(255, 255, 255, 0.98);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: -0.5px;
}

.logo span {
    font-weight: 300;
    color: var(--secondary-color);
}

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

.nav-links a {
    font-weight: 500;
    position: relative;
    padding-bottom: 5px;
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: var(--secondary-color);
    transition: var(--transition);
}

.nav-links a:hover::after, .nav-links a.active::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--primary-color);
}

/* Hero Section */
.hero-section {
    height: 100vh;
    min-height: 600px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--primary-color);
    color: var(--white);
    text-align: center;
    padding: 0 20px;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1920 1080'%3E%3Ctext x='960' y='540' dominant-baseline='middle' text-anchor='middle' font-size='110' font-weight='900' fill='rgba(255,255,255,0.06)' font-family='sans-serif'%3EINCHEON LEADERSHIP DEPARTMENT%3C/text%3E%3C/svg%3E");
    background-size: cover;
    background-position: center;
    background-attachment: fixed; /* This creates the parallax sliding effect */
    z-index: 0;
}

.hero-overlay {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    /* Gradient overlay on top of the blurred image */
    background: linear-gradient(135deg, rgba(10,37,64,0.85) 0%, rgba(0,122,138,0.7) 100%);
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.3;
    letter-spacing: -1px;
    text-shadow: 0 4px 10px rgba(0,0,0,0.3);
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 40px;
    font-weight: 300;
    opacity: 0.95;
    text-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

.cta-button {
    display: inline-block;
    padding: 15px 35px;
    background-color: var(--accent-color);
    color: var(--white);
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 30px;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(0, 196, 182, 0.4);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 196, 182, 0.6);
    background-color: #00DBCB;
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.divider {
    width: 60px;
    height: 3px;
    background-color: var(--secondary-color);
    margin: 0 auto 20px;
}

.subtitle {
    color: var(--text-light);
    font-size: 1.1rem;
}

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text h3 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.about-text p {
    margin-bottom: 20px;
    font-size: 1.05rem;
    color: var(--text-light);
}

.team-stat {
    margin-top: 30px;
    padding: 20px;
    background: var(--bg-light);
    border-left: 4px solid var(--secondary-color);
    border-radius: 0 8px 8px 0;
    display: flex;
    align-items: center;
    gap: 15px;
}

.team-stat i {
    font-size: 2rem;
    color: var(--secondary-color);
}

.team-stat span {
    font-size: 1.1rem;
    color: var(--primary-color);
}

.image-placeholder {
    width: 100%;
    height: 400px;
    background-color: #E2E8F0;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    background-size: cover;
    background-position: center;
}

/* Services Section */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
    transition: var(--transition);
    border-bottom: 4px solid transparent;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
    border-bottom-color: var(--secondary-color);
}

.service-icon {
    width: 70px;
    height: 70px;
    background: rgba(0, 122, 138, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
    color: var(--secondary-color);
    font-size: 2rem;
    transition: var(--transition);
}

.service-card:hover .service-icon {
    background: var(--secondary-color);
    color: var(--white);
}

.service-card h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.service-card p {
    color: var(--text-light);
    margin-bottom: 20px;
    min-height: 48px;
}

.service-list li {
    margin-bottom: 10px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: #444;
}

.service-list i {
    color: var(--accent-color);
    margin-top: 5px;
    font-size: 0.9rem;
}

.highlight-box {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 15px;
    border-radius: 8px;
    font-size: 0.95rem;
    line-height: 1.4;
    margin-bottom: 15px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

/* Reviews Section */
.reviews-section {
    padding: 150px 0 100px;
    background-color: var(--bg-light);
    min-height: 100vh;
}
.review-category {
    margin-bottom: 60px;
}
.review-category h3 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 30px;
    text-align: center;
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
}
.review-category h3::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 3px;
    background-color: var(--accent-color);
}
.review-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}
.review-card {
    background: var(--white);
    padding: 30px 40px;
    border-radius: 12px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    position: relative;
    border-top: 4px solid var(--secondary-color);
    transition: var(--transition);
}
.review-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}
.review-icon {
    font-size: 2.5rem;
    color: rgba(0, 122, 138, 0.1);
    margin-bottom: 15px;
}
.review-text {
    font-size: 1.05rem;
    color: #444;
    line-height: 1.7;
}

/* Pricing / Programs Section */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.pricing-card {
    background: var(--white);
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
    text-align: center;
    transition: var(--transition);
    border: 1px solid #E2E8F0;
    position: relative;
    overflow: hidden;
}

.pricing-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 4px;
    background: var(--secondary-color);
    transform: scaleX(0);
    transition: var(--transition);
}

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

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

.pricing-header h3 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.pricing-header p {
    color: var(--secondary-color);
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 25px;
}

.pricing-price {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 30px;
    display: flex;
    justify-content: center;
    align-items: baseline;
}

.pricing-price .currency {
    font-size: 1.2rem;
    margin-right: 5px;
}

.pricing-price .period {
    font-size: 1rem;
    color: var(--text-light);
    font-weight: 400;
    margin-left: 5px;
}

.pricing-features {
    text-align: left;
    margin-bottom: 40px;
}

.pricing-features li {
    margin-bottom: 15px;
    color: #444;
}

.pricing-features i {
    color: var(--accent-color);
    margin-right: 10px;
}

.pricing-btn {
    display: inline-block;
    width: 100%;
    padding: 15px 0;
    background: var(--bg-light);
    color: var(--primary-color);
    font-weight: 600;
    border-radius: 8px;
    transition: var(--transition);
}

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

/* Contact Section */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.contact-info h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.contact-info > p {
    color: var(--text-light);
    margin-bottom: 30px;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.info-item i {
    width: 40px;
    height: 40px;
    background: rgba(0, 122, 138, 0.1);
    color: var(--secondary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.info-item span {
    font-weight: 500;
    color: var(--text-main);
}

.map-placeholder {
    width: 100%;
    height: 100%;
    min-height: 350px;
    background: #E2E8F0;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    font-size: 1.2rem;
}

.map-placeholder i {
    font-size: 3rem;
    margin-bottom: 10px;
    color: #A0AEC0;
}

/* Footer */
footer {
    background: var(--primary-color);
    color: rgba(255,255,255,0.7);
    padding: 40px 0;
    text-align: center;
}

.footer-logo {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 15px;
}

.footer-logo span {
    font-weight: 300;
    color: var(--accent-color);
}

/* Animations */
.fade-in { opacity: 0; transform: translateY(20px); transition: opacity 0.8s ease, transform 0.8s ease; }
.fade-in-up { opacity: 0; transform: translateY(40px); transition: opacity 0.8s ease, transform 0.8s ease; }
.fade-in-left { opacity: 0; transform: translateX(-40px); transition: opacity 0.8s ease, transform 0.8s ease; }
.fade-in-right { opacity: 0; transform: translateX(40px); transition: opacity 0.8s ease, transform 0.8s ease; }

.visible { opacity: 1; transform: translate(0); }

/* Responsive */
@media (max-width: 992px) {
    .about-grid, .contact-grid {
        grid-template-columns: 1fr;
    }
    .about-image, .contact-map {
        order: -1;
    }
    .image-placeholder {
        height: 300px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--white);
        flex-direction: column;
        padding: 20px;
        gap: 20px;
        box-shadow: 0 10px 15px rgba(0,0,0,0.05);
        clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
        transition: clip-path 0.4s ease;
    }
    .nav-links.active {
        clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
    }
    .mobile-menu-btn {
        display: block;
    }
    .hero-content h1 {
        font-size: 2.5rem;
    }
}