/* K1-style Mega Menu Premium Design System */
:root {
    --nav-height: 70px; 
    --mega-bg: #ffffff;
    --nav-text: #131314;
    --nav-accent: var(--k1-hancom-red, #E30613);
    --nav-dim: #7A7C85;
    --nav-border: #f1f3f5;
    --nav-shadow: 0 40px 80px rgba(0,0,0,0.08);
    --font-main: 'Pretendard', 'Inter', system-ui, sans-serif;
}

.main-nav-k1 {
    display: flex;
    justify-content: center;
    width: 100%;
    background: transparent;
    border-bottom: none;
}

.nav-k1-list {
    display: flex;
    gap: 60px; 
    list-style: none;
    margin: 0;
    padding: 0;
    height: var(--nav-height);
    align-items: center;
}

.nav-k1-item {
    position: static;
}

.nav-k1-link {
    font-family: var(--font-main);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--nav-text);
    text-decoration: none;
    padding: 23px 0; 
    position: relative;
    transition: all 0.3s ease;
    display: block;
    letter-spacing: -0.01em;
}

.nav-k1-link:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px; 
    background: var(--nav-accent);
    transition: width 0.4s cubic-bezier(0.23, 1, 0.32, 1);
}

.nav-k1-item:hover .nav-k1-link {
    color: var(--nav-accent);
}

.nav-k1-item:hover .nav-k1-link:after {
    width: 100%;
}

/* Mega Menu Wrapper */
.mega-menu-wrapper {
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    width: 100%;
    background: #ffffff !important; /* Force solid white */
    border-top: 1px solid var(--nav-border);
    box-shadow: 0 50px 100px rgba(0,0,0,0.1) !important;
    visibility: hidden;
    opacity: 0;
    transform: translateY(15px);
    transition: all 0.4s cubic-bezier(0.19, 1, 0.22, 1);
    z-index: 100000 !important;
    padding: 60px 0;
    border-bottom: 1px solid var(--nav-border);
}

.nav-k1-item:hover .mega-menu-wrapper {
    visibility: visible;
    opacity: 1 !important;
    transform: translateY(0);
}

.mega-menu-inner {
    max-width: 1300px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 320px 1fr 200px;
    gap: 50px;
    padding: 0 40px;
}

/* Banner Section (Left) */
.mega-banner {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.mega-banner-image {
    width: 100%;
    height: 180px;
    border-radius: 16px;
    overflow: hidden;
    background: #f8f8f8;
}

.mega-banner-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.19, 1, 0.22, 1);
}

.mega-banner:hover .mega-banner-image img {
    transform: scale(1.05);
}

.mega-banner-title {
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--nav-text);
    margin: 0;
}

.mega-banner-desc {
    font-size: 0.85rem;
    color: var(--nav-dim);
    line-height: 1.6;
    margin: 0;
}

.mega-banner-link {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--nav-accent);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 10px;
}

/* Grid Section (Center) */
.mega-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.mega-group {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.mega-group-title {
    font-size: 1rem;
    font-weight: 800;
    color: var(--nav-text);
    margin: 0;
    display: flex;
    align-items: center;
    gap: 5px;
}

.mega-group-title i {
    font-size: 0.8rem;
    opacity: 0.3;
}

.mega-group-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.mega-group-link {
    font-size: 0.95rem;
    color: var(--nav-dim);
    text-decoration: none;
    transition: all 0.3s ease;
    display: block;
}

.mega-group-link:hover {
    color: var(--nav-accent);
    transform: translateX(5px);
}

/* Special Section (Right) */
.mega-special {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.mega-special-link {
    font-size: 1rem;
    font-weight: 800;
    color: var(--nav-text);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.mega-special-link:hover {
    background: #f8f8f8;
    color: var(--nav-accent);
}

.mega-special-link i {
    font-size: 1.2rem;
    opacity: 0.6;
}

/* Simple Vertical Dropdown Override */
.nav-k1-item.has-simple-drop {
    position: relative;
}

.mega-menu-wrapper.simple-dropdown {
    width: 240px;
    left: 50%;
    transform: translateX(-50%) translateY(15px);
    right: auto;
    padding: 15px 0;
    border-radius: 16px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
}

.nav-k1-item.has-simple-drop:hover .mega-menu-wrapper.simple-dropdown {
    transform: translateX(-50%) translateY(0);
}

.mega-menu-inner.simple-inner {
    display: flex;
    flex-direction: column;
    grid-template-columns: none;
    padding: 0;
    gap: 0;
}

.simple-inner .mega-grid {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.simple-inner .mega-group {
    padding: 0;
    gap: 0;
}

.simple-inner .mega-group-title {
    padding: 14px 24px;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--nav-text);
    transition: all 0.2s;
    background: transparent;
    border-radius: 0;
}

.simple-inner .mega-group-title a {
    display: block;
    width: 100%;
}

.simple-inner .mega-group-title:hover {
    background: #f8fafc;
    color: var(--nav-accent);
}

.simple-inner .mega-group-title i {
    display: none;
}