/* ========================================
   Reset & Base Styles
   ======================================== */

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

:root {
    /* Color Palette */
    --primary-color: #1a3a5c;
    --secondary-color: #c9a961;
    --accent-color: #2c5f8d;
    --dark-bg: #0f1e2e;
    --light-bg: #f8f9fa;
    --white: #ffffff;
    --text-dark: #222222;
    --text-gray: #6c757d;
    --text-light: #9b9b9b;
    
    /* Success/Warning Colors */
    --success: #28a745;
    --warning: #ffc107;
    --danger: #dc3545;
    --info: #17a2b8;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);
    
    /* Transitions */
    --transition: all 0.3s ease;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
}

html {
    scroll-behavior: smooth;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

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

/* ========================================
   Navigation
   ======================================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--white);
    box-shadow: var(--shadow-md);
    z-index: 1000;
    transition: var(--transition);
}

.navbar.scrolled {
    box-shadow: var(--shadow-lg);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

.nav-brand h1 {
    font-size: 1.5rem;
    color: var(--primary-color);
    font-weight: 700;
    margin-bottom: 0.2rem;
}

.nav-subtitle {
    font-size: 0.9rem;
    color: var(--secondary-color);
    font-weight: 500;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    font-size: 1rem;
    transition: var(--transition);
    padding: 0.5rem 0;
    position: relative;
}

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

.nav-link:hover,
.nav-link.active {
    color: var(--secondary-color);
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    margin: 3px 0;
    transition: var(--transition);
}

/* ========================================
   Hero Section
   ======================================== */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg-image {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('https://sspark.genspark.ai/cfimages?u1=VlHAUV8yrcmux%2FIoJa6hp6%2FO9bUTNtfBleOydPsmJoVKWVCMXiJ0xvIYmYPofQ2XSf08181JVW7x19UaWtceUTDkLfc5%2FosUfgGbiHcPbFMuoLc705l3kJEy6pCGWL%2BmBNYay63kjzpqohhZ7SYxwbB%2BzfgeRlv25S5mgjdmvczzTKXEoYX63C%2BVFc9VAcLg%2FNs1XEpc8gqpy%2FONFjALUhZYfINyVilk%2F08O&u2=FTSQ6oQYRC%2FaAhfT&width=2560');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: 1;
}

.hero-overlay-dark {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(10, 22, 40, 0.85) 0%, rgba(26, 58, 92, 0.75) 100%);
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
    text-align: center;
}

.hero-text-center {
    color: var(--white);
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 6rem;
    font-weight: 300;
    margin-bottom: 1rem;
    line-height: 1.1;
    letter-spacing: -2px;
    color: var(--white);
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 3rem;
    opacity: 0.9;
    font-weight: 300;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--secondary-color);
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1.2rem 3rem;
    border: none;
    border-radius: 0;
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.1);
    transform: translate(-50%, -50%);
    transition: width 0.5s, height 0.5s;
    border-radius: 50%;
}

.btn:hover::after {
    width: 300px;
    height: 300px;
}

.btn i,
.btn span {
    position: relative;
    z-index: 1;
}

.btn-primary {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

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

.btn-secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--secondary-color);
}

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

.hero-scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    color: var(--white);
    opacity: 0.6;
    animation: bounce 2s infinite;
    z-index: 4;
    cursor: pointer;
    transition: var(--transition);
}

.hero-scroll-indicator:hover {
    opacity: 1;
}

.hero-scroll-indicator i {
    font-size: 2rem;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* ========================================
   Section Styles
   ======================================== */

section {
    padding: var(--spacing-xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-badge {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: var(--light-bg);
    color: var(--secondary-color);
    border-radius: 30px;
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 3rem;
    color: var(--primary-color);
    font-weight: 700;
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-gray);
    max-width: 600px;
    margin: 0 auto;
}

/* ========================================
   About Section
   ======================================== */

.about {
    background: var(--white);
}

.about-content {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: 4rem;
    align-items: start;
}

.about-image {
    position: relative;
}

.about-image img {
    width: 100%;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
}

.about-image::before {
    content: '';
    position: absolute;
    top: -20px;
    left: -20px;
    width: 100%;
    height: 100%;
    border: 3px solid var(--secondary-color);
    border-radius: 20px;
    z-index: -1;
}

.about-info {
    padding-top: 2rem;
}

.about-name {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.about-position {
    font-size: 1.3rem;
    color: var(--secondary-color);
    margin-bottom: 2rem;
    font-weight: 500;
}

.info-card {
    background: var(--light-bg);
    border-radius: 15px;
    padding: 2rem;
    margin-bottom: 2rem;
}

.info-card h4 {
    font-size: 1.4rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.info-card h4 i {
    color: var(--secondary-color);
}

.timeline {
    list-style: none;
}

.timeline li {
    display: grid;
    grid-template-columns: 140px 1fr;
    gap: 1.5rem;
    padding: 1rem 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

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

.timeline-year {
    font-weight: 600;
    color: var(--secondary-color);
    font-size: 0.95rem;
}

.timeline-content {
    color: var(--text-dark);
    line-height: 1.6;
}

.qualification-list {
    list-style: none;
}

.qualification-list li {
    padding: 0.75rem 0;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.1rem;
}

.qualification-list i {
    color: var(--secondary-color);
    font-size: 1.2rem;
}

/* ========================================
   Activities Section
   ======================================== */

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

.activities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.activity-card {
    background: var(--white);
    border-radius: 15px;
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.activity-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.activity-card.featured {
    grid-column: span 2;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: var(--white);
}

.activity-icon {
    width: 60px;
    height: 60px;
    background: var(--secondary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    color: var(--white);
}

.activity-card.featured .activity-icon {
    background: var(--white);
    color: var(--primary-color);
}

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

.activity-card.featured h3 {
    color: var(--white);
}

.activity-item {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 1.5rem;
    border-radius: 10px;
}

.activity-date {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    background: var(--secondary-color);
    color: var(--white);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.activity-content {
    font-size: 1.1rem;
    line-height: 1.6;
}

.activity-list {
    list-style: none;
}

.activity-list li {
    padding: 0.75rem 0;
    display: flex;
    align-items: start;
    gap: 0.75rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    line-height: 1.6;
}

.activity-list li:last-child {
    border-bottom: none;
}

.activity-list i {
    color: var(--secondary-color);
    margin-top: 0.2rem;
}

/* ========================================
   Columns Section
   ======================================== */

.columns {
    background: var(--white);
}

.columns-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.column-card {
    background: var(--white);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    text-decoration: none;
    color: inherit;
    display: block;
    cursor: pointer;
}

.column-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.column-image {
    height: 220px;
    overflow: hidden;
    position: relative;
}

.column-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(26, 58, 92, 0);
    transition: var(--transition);
}

.column-card:hover .column-image::after {
    background: rgba(26, 58, 92, 0.2);
}

.column-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.column-card:hover .column-image img {
    transform: scale(1.1);
}

.column-content {
    padding: 2rem;
}

.column-category {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.column-content h3 {
    font-size: 1.4rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    line-height: 1.4;
}

.column-content p {
    color: var(--text-gray);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.column-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    color: var(--text-light);
    font-size: 0.9rem;
    flex-wrap: wrap;
}

.column-meta i {
    color: var(--secondary-color);
}

.column-link {
    color: var(--secondary-color);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.column-card:hover .column-link {
    text-decoration: underline;
}

.columns-footer {
    margin-top: 3rem;
    text-align: center;
}

.columns-footer .btn {
    padding: 1rem 2.5rem;
    border-radius: 50px;
}

/* ========================================
   Cases Section
   ======================================== */

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

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.case-card {
    background: var(--white);
    border-radius: 15px;
    padding: 2.5rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.case-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, var(--secondary-color), var(--primary-color));
}

.case-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.case-number {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 3rem;
    font-weight: 700;
    color: rgba(0, 0, 0, 0.05);
}

.case-icon {
    width: 60px;
    height: 60px;
    background: var(--light-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    color: var(--primary-color);
}

.case-card h3 {
    font-size: 1.4rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: 600;
}

.case-description {
    color: var(--text-gray);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.case-result {
    display: flex;
    justify-content: flex-end;
}

.result-badge {
    padding: 0.5rem 1.2rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
}

.result-badge.success {
    background: var(--success);
    color: var(--white);
}

.result-badge.warning {
    background: var(--warning);
    color: var(--text-dark);
}

.result-badge.danger {
    background: var(--danger);
    color: var(--white);
}

.result-badge.info {
    background: var(--info);
    color: var(--white);
}

/* ========================================
   Contact Section
   ======================================== */

.contact {
    background: var(--white);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.contact-info h3 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.contact-desc {
    color: var(--text-gray);
    line-height: 1.7;
    margin-bottom: 2rem;
}

.info-item {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
    align-items: start;
}

.info-icon {
    width: 50px;
    height: 50px;
    background: var(--light-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--secondary-color);
    flex-shrink: 0;
}

.info-item h4 {
    color: var(--primary-color);
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.info-item p {
    color: var(--text-gray);
    line-height: 1.6;
}

.contact-action {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.kakao-consult {
    background: linear-gradient(135deg, #FEE500 0%, #FFEB3B 100%);
    border-radius: 20px;
    padding: 3rem;
    text-align: center;
    box-shadow: var(--shadow-md);
}

.kakao-icon {
    width: 80px;
    height: 80px;
    background: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2.5rem;
    color: #FEE500;
}

.kakao-consult h3 {
    font-size: 1.8rem;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.kakao-consult p {
    color: var(--text-gray);
    margin-bottom: 2rem;
}

.btn-kakao {
    background: var(--text-dark);
    color: var(--white);
    width: 100%;
    justify-content: center;
    font-size: 1.1rem;
    border-radius: 50px;
}

.btn-kakao:hover {
    background: #3c1e1e;
    transform: translateY(-2px);
}

.kakao-note {
    margin-top: 1rem;
    font-size: 0.85rem;
    color: var(--text-gray);
}

.map-container {
    margin-top: 4rem;
}

.map-container h3 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 2rem;
    text-align: center;
}

.map-info-box {
    background: var(--light-bg);
    border-radius: 15px;
    padding: 2rem;
    margin-bottom: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.map-address h4 {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.map-address h4 i {
    color: var(--secondary-color);
}

.map-address p {
    font-size: 1.1rem;
    color: var(--text-dark);
    line-height: 1.6;
    margin-bottom: 0.5rem;
}

.map-note {
    font-size: 0.95rem !important;
    color: var(--text-gray) !important;
    margin-top: 0.5rem;
}

.map-info-box .btn {
    white-space: nowrap;
}

.map {
    width: 100%;
    height: 400px;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.map iframe {
    display: block;
}

/* ========================================
   Footer
   ======================================== */

.footer {
    background: var(--dark-bg);
    color: var(--white);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

.footer-section h4 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--white);
}

.footer-section p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
}

.footer-desc {
    margin-top: 1rem;
}

.footer-links,
.footer-contact {
    list-style: none;
}

.footer-links li,
.footer-contact li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--secondary-color);
}

.footer-contact li {
    color: rgba(255, 255, 255, 0.7);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.footer-contact i {
    color: var(--secondary-color);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 0.5rem;
}

.footer-note {
    font-size: 0.85rem;
}

/* ========================================
   Scroll to Top Button
   ======================================== */

.scroll-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--secondary-color);
    color: var(--white);
    border: none;
    border-radius: 50%;
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
    z-index: 999;
}

.scroll-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    background: var(--primary-color);
    transform: translateY(-5px);
}

/* ========================================
   Responsive Design
   ======================================== */

@media (max-width: 1024px) {
    .hero-title {
        font-size: 4rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
        letter-spacing: 3px;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .about-image {
        max-width: 400px;
        margin: 0 auto;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .activity-card.featured {
        grid-column: span 1;
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 76px;
        left: -100%;
        width: 100%;
        flex-direction: column;
        background: var(--white);
        padding: 2rem;
        box-shadow: var(--shadow-lg);
        transition: var(--transition);
        gap: 1rem;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hero {
        min-height: 100vh;
        padding: 0;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
        letter-spacing: 2px;
    }
    
    .btn {
        padding: 1rem 2rem;
        font-size: 0.9rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .timeline li {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }
    
    .columns-grid {
        grid-template-columns: 1fr;
    }
    
    .cases-grid {
        grid-template-columns: 1fr;
    }
    
    .activities-grid {
        grid-template-columns: 1fr;
    }
    
    .map-info-box {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .map-info-box .btn {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
        letter-spacing: -1px;
    }
    
    .hero-subtitle {
        font-size: 0.9rem;
        letter-spacing: 2px;
    }
    
    .btn {
        padding: 1rem 1.5rem;
        font-size: 0.85rem;
        letter-spacing: 1px;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .scroll-top {
        width: 45px;
        height: 45px;
        bottom: 1.5rem;
        right: 1.5rem;
    }
}