/* CSS Variables */
:root {
    --color-primary: #0A1A2F; /* Deep Navy */
    --color-accent: #C5A059; /* Muted Gold */
    --color-accent-light: #E5C585;
    --color-text-dark: #1F2937;
    --color-text-light: #6B7280;
    --color-white: #FFFFFF;
    --color-bg-light: #F9FAFB;
    
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Inter', 'Noto Sans KR', sans-serif;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    
    --transition: all 0.3s ease;
}

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--color-text-dark);
    line-height: 1.6;
    background-color: var(--color-white);
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Typography */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    color: var(--color-primary);
    line-height: 1.2;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.section-subtitle {
    font-family: var(--font-heading);
    font-style: italic;
    color: var(--color-accent);
    font-size: 1.1rem;
}

/* Header */
.header {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
    padding: 0;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    padding-top: 0.8rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    order: 1;
}

.logo img {
    height: 45px;
    width: auto;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-text .en {
    font-weight: 700;
    font-size: 1rem;
    color: var(--color-primary);
}

.logo-text .ko {
    font-size: 0.85rem;
    color: var(--color-text-light);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    margin-top: 0.8rem;
    background: var(--color-primary);
    box-shadow: 50vw 0 0 var(--color-primary), -50vw 0 0 var(--color-primary);
    order: 4;
}

.nav-list {
    display: flex;
    justify-content: center;
    gap: 2.5rem;
}

.nav-list a {
    font-weight: 500;
    font-size: 0.95rem;
    color: #fff;
    position: relative;
    display: block;
    padding: 1rem 0;
}

.nav-list a:hover,
.nav-list a.active {
    color: var(--color-accent);
}

.nav-list a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--color-accent);
}

.lang-switch {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    margin-left: auto;
    padding-left: 1rem;
    border-left: 1px solid #eee;
    order: 2;
}

.lang-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-weight: 600;
    color: var(--color-text-light);
    font-size: 0.8rem;
    padding: 0.35rem 0.2rem;
}

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

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--color-primary);
    order: 3;
    cursor: pointer;
}

/* Page Hero (Sub-pages) */
.page-hero {
    background: var(--color-primary);
    color: var(--color-white);
    padding: 6rem 0 3rem;
    text-align: center;
}

.page-hero h1 {
    font-size: 3rem;
    color: var(--color-white);
    margin-bottom: 0.5rem;
}

.page-hero p {
    color: var(--color-accent);
    font-family: var(--font-heading);
    font-style: italic;
    font-size: 1.2rem;
}

/* Hero Section (Home) */
.hero {
    position: relative;
    height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background-color: var(--color-primary);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('hero-bg.jpg') no-repeat center center/cover;
    z-index: 0;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 26, 47, 0.35); /* Keep the background image bright and clear */
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    color: var(--color-white);
    max-width: 900px;
    text-shadow: 0 2px 12px rgba(0, 0, 0, 0.55);
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 2rem;
    color: var(--color-white);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.hero-title .ko {
    font-family: 'Noto Sans KR', sans-serif;
    font-weight: 300;
    font-size: 2rem;
    opacity: 0.9;
}

.hero-subtitle-container {
    margin-bottom: 2.5rem;
}

.hero-subtitle.motto {
    font-size: 1.5rem;
    color: var(--color-accent);
    margin-bottom: 0.5rem;
    display: block;
}

.hero-subtitle.ko {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.7);
}

.btn {
    display: inline-block;
    padding: 0.8rem 1.8rem;
    border-radius: 4px;
    font-weight: 500;
    letter-spacing: 0.5px;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
}

.btn-primary {
    background-color: var(--color-accent);
    color: var(--color-primary);
}

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

.btn-outline {
    background-color: transparent;
    border-color: var(--color-white);
    color: var(--color-white);
    margin-left: 1rem;
}
.btn-outline.small {
    padding: 0.5rem 1rem;
    color: var(--color-primary);
    border-color: var(--color-primary);
    margin-left: 0;
    font-size: 0.85rem;
}

.btn-outline:hover {
    background-color: rgba(255,255,255,0.1);
}
.btn-outline.small:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
}

/* Section Common */
.section {
    padding: 5rem 0;
}
.text-center { text-align: center; }
.bg-light { background-color: var(--color-bg-light); }
.p-4 { padding: 2rem; }
.rounded { border-radius: 8px; }

.section-line {
    width: 60px;
    height: 3px;
    background-color: var(--color-accent);
    margin: 1rem auto;
}

/* Features Grid (Home) */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
}

.feature-card {
    display: block;
    background: var(--color-white);
    padding: 2.5rem;
    border: 1px solid #eee;
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    text-align: center;
}

.feature-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-5px);
    border-color: var(--color-accent);
}

.icon-wrapper {
    font-size: 2.5rem;
    color: var(--color-primary);
    margin-bottom: 1.5rem;
}

/* Content Grids */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}
.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

/* Content Blocks */
.content-block {
    margin-bottom: 4rem;
}
.content-block h2 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    border-left: 4px solid var(--color-accent);
    padding-left: 1rem;
}

/* Organizational Chart */
.org-chart {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    margin: 2rem 0;
}
.org-level {
    display: flex;
    gap: 2rem;
    justify-content: center;
}
.org-box {
    background: var(--color-white);
    border: 1px solid #ddd;
    padding: 1rem 2rem;
    border-radius: 4px;
    min-width: 150px;
    text-align: center;
    font-weight: 500;
    box-shadow: var(--shadow-sm);
}
.org-box.president {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

/* Cards */
.card-simple, .card-border, .card-colored {
    padding: 1.5rem;
    border-radius: 6px;
}
.card-simple {
    background: #fff;
    box-shadow: var(--shadow-sm);
}
.card-border {
    background: #fff;
    border: 1px solid #eee;
    transition: var(--transition);
}
.card-border:hover {
    border-color: var(--color-accent);
}
.card-colored {
    background: var(--color-primary);
    color: var(--color-white);
}
.card-colored h4 {
    color: var(--color-accent);
    margin-bottom: 0.5rem;
}
.card-simple h4, .card-border h3 {
    margin-bottom: 0.5rem;
    color: var(--color-primary);
}

/* Lists */
.styled-list li, .check-list li, .bullet-list li {
    margin-bottom: 0.5rem;
    position: relative;
    padding-left: 1.5rem;
}
.styled-list li::before {
    content: "•";
    color: var(--color-accent);
    position: absolute;
    left: 0;
    font-weight: bold;
}
.check-list li::before {
    content: "✓";
    color: var(--color-accent);
    position: absolute;
    left: 0;
    font-weight: bold;
}
.bullet-list.big li {
    padding-left: 0;
    list-style-type: disc;
    list-style-position: inside;
}

.benefit-note {
    margin-top: 1rem;
    font-size: 0.9rem;
    color: var(--color-text-light);
    border-top: 1px solid #eee;
    padding-top: 0.5rem;
}

/* Download List */
.download-list {
    display: grid;
    gap: 1rem;
}
.download-item {
    display: flex;
    align-items: center;
    background: var(--color-bg-light);
    padding: 1rem;
    border-radius: 6px;
    gap: 1rem;
}
.download-item i {
    font-size: 2rem;
    color: #e74c3c;
}
.download-info {
    flex: 1;
}

/* Contact Form */
.contact-form-wrapper {
    background: var(--color-white);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow-md);
}
.form-group {
    margin-bottom: 1.2rem;
}
.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}
.form-group input, .form-group textarea, .form-group select {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-family: inherit;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
    outline: none;
    border-color: var(--color-primary);
}

.form-success {
    margin-bottom: 1.25rem;
    padding: 0.9rem 1rem;
    border-left: 4px solid #2f855a;
    border-radius: 4px;
    background: #f0fff4;
    color: #22543d;
}

.info-item {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}
.info-item i {
    width: 40px;
    height: 40px;
    background: var(--color-bg-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
}
.social-links a {
    font-size: 1.2rem;
    color: var(--color-text-light);
    margin-right: 1rem;
}

/* Footer */
.footer {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 4rem 0 2rem;
    margin-top: auto;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding-bottom: 2rem;
    margin-bottom: 2rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-family: var(--font-heading);
    /* font-size removed to let children control size */
}

.footer-logo img {
    height: 40px;
    width: auto;
    border-radius: 50%; /* Clip white background corners */
}

.footer-logo .logo-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.footer-logo .logo-text .en {
    font-size: 1rem;
    color: var(--color-white);
    font-weight: 600;
}

.footer-logo .logo-text .ko {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.7);
    font-family: 'Noto Sans KR', sans-serif;
}

.footer-social {
    display: flex;
    gap: 1.5rem;
}

.footer-social a {
    color: rgba(255,255,255,0.7);
    font-size: 1.2rem;
}

.footer-social a:hover {
    color: var(--color-accent);
}

.footer-bottom {
    text-align: center;
    font-size: 0.85rem;
    color: rgba(255,255,255,0.5);
}

.legal-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.45rem 1rem; margin-bottom: 0.8rem; }
.legal-links a, .cookie-settings-link { color: rgba(255,255,255,0.82); font: inherit; text-decoration: underline; }
.cookie-settings-link { padding: 0; border: 0; background: none; cursor: pointer; }
.consent-panel { margin: 1.25rem 0; padding: 1rem; border: 1px solid #cbd5e0; border-radius: 6px; }
.consent-panel legend { padding: 0 0.35rem; font-weight: 700; color: var(--color-primary); }
.consent-option { display: flex; align-items: flex-start; gap: 0.65rem; margin: 0.7rem 0; line-height: 1.55; cursor: pointer; }
.consent-option input { flex: 0 0 auto; width: 1.1rem; height: 1.1rem; margin-top: 0.25rem; }
.consent-note { margin: 0.8rem 0 0; font-size: 0.85rem; color: #4a5568; }
.legal-layout { display: grid; grid-template-columns: minmax(190px, 0.28fr) minmax(0, 1fr); gap: 3rem; padding-top: 3rem; padding-bottom: 4rem; }
.legal-toc { position: sticky; top: 150px; align-self: start; display: flex; flex-direction: column; border-left: 3px solid var(--color-accent); }
.legal-toc a { padding: 0.55rem 1rem; color: var(--color-primary); }
.legal-copy section { scroll-margin-top: 155px; padding-bottom: 1.8rem; border-bottom: 1px solid #e2e8f0; margin-bottom: 2rem; }
.legal-copy h2 { margin-bottom: 1rem; color: var(--color-primary); }
.legal-copy h3 { margin: 1.2rem 0 0.5rem; }
.legal-copy p, .legal-copy li { line-height: 1.75; }
.policy-date { color: #4a5568; }
.cookie-consent { position: fixed; z-index: 2000; left: 1rem; right: 1rem; bottom: 1rem; display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; max-width: 1180px; margin: auto; padding: 1rem 1.2rem; background: #fff; color: #1a202c; border: 1px solid #cbd5e0; border-radius: 8px; box-shadow: 0 12px 35px rgba(0,0,0,.25); }
.cookie-consent p { margin: 0.3rem 0 0; }
.cookie-actions { display: flex; flex-wrap: wrap; gap: 0.55rem; flex: 0 0 auto; }
.cookie-actions .btn { white-space: nowrap; padding: 0.65rem 0.9rem; }
.cookie-modal { position: fixed; z-index: 2100; inset: 0; display: grid; place-items: center; padding: 1rem; background: rgba(10,26,47,.68); }
.cookie-modal-card { position: relative; width: min(560px, 100%); padding: 1.5rem; background: white; border-radius: 8px; box-shadow: 0 18px 50px rgba(0,0,0,.3); }
.cookie-close { position: absolute; top: 0.6rem; right: 0.8rem; border: 0; background: none; font-size: 1.8rem; cursor: pointer; }
.cookie-toggle { display: flex; gap: 0.65rem; padding: 0.8rem 0; border-top: 1px solid #e2e8f0; }

/* Responsive */
@media (max-width: 768px) {
    .header-container {
        padding-top: 0.65rem;
    }
    
    .logo { gap: 0.5rem; }
    .logo img { height: 38px; }
    .logo-text span { font-size: 0.82rem; }
    
    .nav {
        display: none;
        width: 100%;
        flex-direction: column;
        margin-top: 0.65rem;
        padding: 0.4rem 0;
    }
    
    .nav.nav-active {
        display: flex;
    }
    
    .nav-list {
        flex-direction: column;
        align-items: center;
        gap: 0;
        width: 100%;
    }

    .lang-switch {
        margin-left: auto;
        padding: 0 0.5rem;
        border: 0;
        width: auto;
    }

    .nav-list a { padding: 0.7rem 1rem; }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-title .ko {
        font-size: 1.5rem;
    }
    
    .split-layout {
        flex-direction: column;
        gap: 3rem;
    }
    
    .grid-2, .grid-3 {
        grid-template-columns: 1fr;
    }
    .legal-layout { grid-template-columns: 1fr; gap: 1.5rem; padding-top: 2rem; }
    .legal-toc { position: static; }
    .cookie-consent { align-items: stretch; flex-direction: column; }
    .cookie-actions { width: 100%; }
    .cookie-actions .btn { flex: 1 1 auto; }
}