/* BIZKIT Homepage - Header & Navigation Styles */

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    z-index: var(--z-fixed);
    transition: var(--transition-normal);
}

.header.scrolled {
    background-color: rgba(45, 45, 68, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo img {
    height: 40px;
}

.logo-text {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.nav-link {
    color: var(--color-white);
    font-weight: var(--font-weight-medium);
    position: relative;
    padding: var(--spacing-sm) 0;
}

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

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

.nav-cta {
    margin-left: 0;
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
}

/* Community Box Dropdown */
/* Nav Right Group - PC용 관련사이트 + 워크숍신청 그룹 */
.nav-right-group {
    display: flex;
    align-items: center;
    gap: 10px;
}

.community-dropdown {
    position: relative;
}

.community-toggle {
    display: flex;
    align-items: center;
    gap: 4px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: var(--color-white);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    transition: all 0.3s ease;
}

.community-toggle:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: var(--color-primary);
}

.community-toggle .dropdown-arrow {
    transition: transform 0.3s ease;
}

.community-dropdown:hover .dropdown-arrow {
    transform: rotate(180deg);
}

.community-menu {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    background: var(--color-white);
    border-radius: var(--radius-md);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    min-width: 180px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: var(--z-dropdown);
    overflow: hidden;
}

.community-dropdown:hover .community-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.community-menu a {
    display: flex;
    align-items: center;
    padding: 0.75rem 1rem;
    color: var(--color-text-dark);
    font-size: 0.9rem;
    transition: all 0.2s ease;
    border-bottom: 1px solid var(--color-gray-light);
}

.community-menu a:last-child {
    border-bottom: none;
}

.community-menu a:hover {
    background: var(--color-light);
    color: var(--color-primary);
    padding-left: 1.25rem;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.hamburger span {
    width: 25px;
    height: 2px;
    background-color: var(--color-white);
    transition: var(--transition-normal);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Dropdown Menu Styles */
.nav-dropdown {
    position: relative;
}

.nav-dropdown-toggle {
    display: flex;
    align-items: center;
    gap: 4px;
}

.dropdown-arrow {
    transition: transform 0.3s ease;
}

.nav-dropdown:hover .dropdown-arrow {
    transform: rotate(180deg);
}

.nav-dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    min-width: 200px;
    background-color: rgba(45, 45, 68, 0.98);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    padding: var(--spacing-sm) 0;
    margin-top: 10px;
    z-index: 100;
}

.nav-dropdown-menu::before {
    content: '';
    position: absolute;
    top: -10px;
    left: 0;
    right: 0;
    height: 10px;
}

.nav-dropdown:hover .nav-dropdown-menu {
    opacity: 1;
    visibility: visible;
    margin-top: 0;
}

.nav-dropdown-item {
    display: block;
    padding: var(--spacing-sm) var(--spacing-lg);
    color: rgba(255, 255, 255, 0.8);
    font-size: var(--font-size-sm);
    white-space: nowrap;
    transition: all 0.2s ease;
}

.nav-dropdown-item:hover {
    background-color: rgba(245, 184, 0, 0.1);
    color: var(--color-primary);
    padding-left: calc(var(--spacing-lg) + 5px);
}

/* Footer */
.footer {
    background-color: #1A1A2E;
    color: var(--color-white);
    padding: var(--spacing-4xl) 0 var(--spacing-xl);
}

.footer-bottom {
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-dark-secondary);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--spacing-xs);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.4);
    font-size: var(--font-size-sm);
    margin: 0;
}

/* Mobile Responsive (iPad included) */
@media (max-width: 1024px) {
    .nav-menu {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: var(--color-dark);
        flex-direction: column;
        padding: var(--spacing-xl);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition-normal);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-link {
        padding: var(--spacing-md) 0;
        border-bottom: 1px solid var(--color-dark-secondary);
    }

    .hamburger {
        display: flex;
    }

    .nav-right-group {
        display: none;
    }

    .nav-cta {
        display: none;
    }

    /* Mobile Dropdown */
    .nav-dropdown {
        width: 100%;
    }

    .nav-dropdown-toggle {
        justify-content: space-between;
        width: 100%;
        padding: var(--spacing-md) 0;
        border-bottom: 1px solid var(--color-dark-secondary);
    }

    .nav-dropdown-menu {
        position: static;
        transform: none;
        opacity: 1;
        visibility: visible;
        background-color: rgba(0, 0, 0, 0.2);
        margin: 0;
        padding: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
        border-radius: 0;
        box-shadow: none;
    }

    .nav-dropdown-menu::before {
        display: none;
    }

    .nav-dropdown.active .nav-dropdown-menu {
        max-height: 300px;
        padding: var(--spacing-sm) 0;
    }

    .nav-dropdown.active .dropdown-arrow {
        transform: rotate(180deg);
    }

    .nav-dropdown-item {
        padding: var(--spacing-sm) var(--spacing-lg);
    }

    .nav-dropdown-item:hover {
        padding-left: var(--spacing-lg);
    }
}