/* Trend07 Header Style - PNS Style */

#site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 90px;
    background-color: transparent; /* 초기 투명 */
    border-bottom: 1px solid rgba(255,255,255,0.2);
    z-index: 1000;
    transition: all 0.3s ease;
}

/* 스크롤 시 스타일 변경 (JS로 클래스 추가) */
#site-header.scrolled {
    background-color: #fff;
    height: 80px;
    border-bottom: 1px solid #eee;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.header-inner {
    max-width: 1600px;
    margin: 0 auto;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 40px;
}

.header-logo img {
    height: 30px;
    width: auto;
    filter: brightness(0) invert(1); /* 초기 흰색 로고 */
    transition: filter 0.3s;
}

#site-header.scrolled .header-logo img {
    filter: none; /* 스크롤 시 원래 색상 */
}

.header-gnb ul {
    display: flex;
    gap: 50px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.header-gnb > ul > li {
    position: relative;
}

.header-gnb a {
    text-decoration: none;
    color: #fff;
    font-size: 16px;
    font-weight: 500;
    transition: color 0.3s;
    display: block;
    padding: 30px 0;
}

#site-header.scrolled .header-gnb a {
    color: #333;
}

.header-gnb a:hover {
    color: #009fe3; /* PNS Blue */
}

/* 2차 메뉴 (드롭다운) */
.sub-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: #fff;
    min-width: 180px;
    padding: 15px 0;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    border-top: 3px solid #009fe3;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    display: block !important; /* flex 덮어쓰기 */
}

.header-gnb li:hover .sub-menu {
    opacity: 1;
    visibility: visible;
    top: 80%;
}

.sub-menu li {
    text-align: center;
}

.sub-menu a {
    color: #555 !important;
    padding: 10px 20px;
    font-size: 14px;
}

.sub-menu a:hover {
    background-color: #f9f9f9;
    color: #009fe3 !important;
}

.header-utils ul {
    display: flex;
    align-items: center;
    gap: 20px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.header-utils a, .header-utils button {
    text-decoration: none;
    color: #fff;
    font-size: 13px;
    background: none;
    border: none;
    cursor: pointer;
    transition: color 0.3s;
}

#site-header.scrolled .header-utils a,
#site-header.scrolled .header-utils button {
    color: #333;
}

.header-utils a:hover, .header-utils button:hover {
    color: #009fe3;
}

/* 모바일 메뉴 */
.mobile-menu-trigger, .mobile-menu-panel {
    display: none;
}

@media (max-width: 1024px) {
    .header-gnb, .header-utils {
        display: none;
    }

    .mobile-menu-trigger {
        display: block;
        width: 30px;
        height: 20px;
        position: relative;
        background: none;
        border: none;
        cursor: pointer;
    }

    .mobile-menu-trigger span {
        display: block;
        width: 100%;
        height: 2px;
        background-color: #fff;
        position: absolute;
        left: 0;
        transition: all 0.3s;
    }

    #site-header.scrolled .mobile-menu-trigger span {
        background-color: #333;
    }

    .mobile-menu-trigger span:nth-child(1) { top: 0; }
    .mobile-menu-trigger span:nth-child(2) { top: 50%; transform: translateY(-50%); }
    .mobile-menu-trigger span:nth-child(3) { bottom: 0; }

    .mobile-menu-panel {
        display: block;
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100%;
        background: #fff;
        z-index: 1100;
        transition: right 0.4s ease;
        padding: 20px;
    }

    .mobile-menu-panel.active {
        right: 0;
    }

    .mobile-menu-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 40px;
        border-bottom: 1px solid #eee;
        padding-bottom: 20px;
    }

    .mobile-menu-close {
        font-size: 30px;
        background: none;
        border: none;
        cursor: pointer;
    }

    .mobile-gnb ul {
        list-style: none;
        padding: 0;
        margin: 0;
    }

    .mobile-gnb a {
        display: block;
        padding: 15px 0;
        font-size: 18px;
        color: #333;
        text-decoration: none;
        border-bottom: 1px solid #f5f5f5;
    }
}