/* ============================================================================
   Bunny Theme - Header Styles (Simplified & Unified)
   - 스크롤 효과 제거됨 (항상 단일 상태)
   - 메인: 로고 작게 중앙
   - 싱글: 홈 아이콘 + 제목/날짜
   - 태그/카테고리/검색: 제목만 표시 (로고 없음)
   ============================================================================ */

/* ============================================================================
   Base Header Styles
   ============================================================================ */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.24);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    padding: 10px 0 10px 0;
    transition: background 0.5s ease-out, opacity 0.25s ease-out;
}

/* 페이지 전환 시작 시 헤더 숨김 */
body.page-transitioning .site-header {
    opacity: 0;
    pointer-events: none;
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0.8rem 1.5rem;
    display: grid;
    grid-template-columns: auto 1fr;
    align-items: center;
    padding-top: 0.3rem;
    gap: 1.5rem;
}

/* ============================================================================
   Site Title & Logo
   ============================================================================ */
.site-title {
    display: flex;
    align-items: center;
    justify-content: flex-start;
}

.site-title a {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: #fff;
}

/* 로고 이미지 기본 스타일 */
.site-title img.site-logo {
    height: 1.4rem;
    width: auto;
    display: block;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

/* 로고 페이드인 애니메이션 */
body.loaded .site-title img.site-logo {
    opacity: 1;
    transform: translateY(0);
    transition-delay: 0.4s;
}

/* 서브타이틀 이미지 기본 스타일 */
.site-title img.site-subtitle {
    width: 8rem;
    height: auto;
    margin-top: 0.5rem;
    display: block;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

/* 서브타이틀 페이드인 애니메이션 (로고보다 0.1초 늦게) */
body.loaded .site-title img.site-subtitle {
    opacity: 1;
    transform: translateY(0);
    transition-delay: 0.5s;
}

/* 홈 아이콘 (싱글 페이지용) */
.site-title .home-icon {
    width: 1.6rem;
    height: 1.6rem;
    color: #fff;
    display: block;
}

/* ============================================================================
   Header Content (Title & Date)
   ============================================================================ */
.header-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 0.4rem;
}

.header-post-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: #fff;
    margin: 0;
    line-height: 1.3;
    opacity: 0;
    transform: translateY(15px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
    word-break: keep-all;
    overflow-wrap: break-word;
}

.header-post-date {
    font-size: 0.75rem;
    font-weight: 400;
    color: rgba(174, 174, 178, 0.8);
    margin: 0;
    line-height: 1.2;
    opacity: 0;
    transform: translateY(15px);
    transition: opacity 0.6s ease-out 0.2s, transform 0.6s ease-out 0.2s;
}

/* 애니메이션 활성화 */
body.meta-title-in .header-post-title {
    opacity: 1;
    transform: translateY(0);
}

body.meta-date-in .header-post-date {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================================================
   Page-Specific Overrides for Iridescence Background
   ============================================================================ */
body.home .site-header,
body.blog .site-header,
body.category .site-header,
body.tag .site-header,
body.search .site-header,
body.archive .site-header {
    position: relative; /* Take out of fixed stacking context */
    background: transparent;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
}

/* ============================================================================
   Page-Specific Styles
   ============================================================================ */

/* 메인 페이지: 로고만 작게 중앙에 표시 + 스크롤 시 헤더가 위로 밀려남 */
body.home .site-header,
body.blog .site-header {
    position: relative;
}

body.home .site-header .header-inner,
body.blog .site-header .header-inner {
    grid-template-columns: 1fr;
    justify-items: center;
}

body.home .site-header .site-title,
body.blog .site-header .site-title {
    justify-self: center;
}

body.home .site-header .site-title img.site-logo,
body.blog .site-header .site-title img.site-logo {
    height: 2.0rem;
}

body.home .site-header .header-content,
body.blog .site-header .header-content {
    display: none;
}

/* 404 페이지: 홈 페이지와 동일한 스타일 */
body.error404 .site-header {
    position: relative;
    background: transparent;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
}

body.error404 .header-inner {
    grid-template-columns: 1fr;
    justify-items: center;
}

body.error404 .site-title {
    justify-self: center;
}

body.error404 .site-title img.site-logo {
    height: 2.0rem;
}

body.error404 .header-content {
    display: none;
}

/* 싱글 페이지: 제목/날짜만 중앙 정렬, 로고/홈버튼 숨김 */
body.single-post .site-header .header-inner {
    grid-template-columns: 1fr;
    justify-items: center;
}

body.single-post .site-header .site-title {
    display: none !important;
    opacity: 0 !important;
    visibility: hidden !important;
}

body.single-post .site-header .header-content {
    justify-self: center;
    align-items: center;
    text-align: center;
    width: 100%;
    max-width: 90%;
}

body.single-post .site-header .header-post-title {
    font-size: 1.2rem;
    font-weight: 400;
}

body.single-post .site-header .header-post-date {
    font-size: 1.0rem;
    color: rgba(255, 255, 255, 0.8);
}

/* 태그/카테고리/검색 페이지: 로고 숨김, 제목만 표시 */
body.tag .site-header .site-title,
body.category .site-header .site-title,
body.search .site-header .site-title,
body.archive .site-header .site-title {
    display: none;
}

body.tag .site-header .header-inner,
body.category .site-header .header-inner,
body.search .site-header .header-inner,
body.archive .site-header .header-inner {
    grid-template-columns: 1fr;
    justify-items: center;
}

body.tag .site-header .header-content,
body.category .site-header .header-content,
body.search .site-header .header-content,
body.archive .site-header .header-content {
    align-items: center;
    text-align: center;
}

body.tag .site-header .header-post-title,
body.category .site-header .header-post-title,
body.search .site-header .header-post-title,
body.archive .site-header .header-post-title {
    font-size: 1.3rem;
    font-weight: 400;
}

/* ============================================================================
   Responsive Styles
   ============================================================================ */

/* PC & Tablet (≥ 768px) */
@media (min-width: 768px) {
    .header-inner {
        padding: 1rem 2rem;
    }

    /* 메인/아카이브 페이지 헤더 내부 상하 여백 조정 */
    body.home .header-inner,
    body.blog .header-inner,
    body.category .header-inner,
    body.tag .header-inner,
    body.search .header-inner,
    body.archive .header-inner,
    body.error404 .header-inner {
        padding-top: 48px;
        padding-bottom: 1rem;
    }

    body.single-post .header-inner {
        padding-top: 1rem;
        padding-bottom: 1rem;
    }

    /* 메인: 로고 */
    body.home .site-header .site-title img.site-logo,
    body.blog .site-header .site-title img.site-logo {
        height: 2.0rem;
    }

    /* 싱글: 제목 */
    body.single-post .site-header .header-post-title {
        font-size: 1.6rem;
        font-weight: 600;
    }

    body.single-post .site-header .header-post-date {
        font-size: 1.2rem;
        color: rgba(255, 255, 255, 0.85);
    }

    /* 태그/카테고리/검색: 제목 */
    body.tag .site-header .header-post-title,
    body.category .site-header .header-post-title,
    body.search .site-header .header-post-title,
    body.archive .site-header .header-post-title {
        font-size: 2.2rem;
        font-weight: 500;
    }
}

/* Large Desktop (≥ 1168px) */
@media (min-width: 1168px) {
    .header-inner {
        max-width: 1152px;
    }
}

/* Mobile (< 768px) */
@media (max-width: 767px) {
    body.single-post .header-inner {
        padding: 0;
    }

    body.home .header-inner,
    body.blog .header-inner,
    body.category .header-inner,
    body.tag .header-inner,
    body.search .header-inner,
    body.archive .header-inner,
    body.error404 .header-inner {
        padding: 52px 1.2rem 20px;
    }

    body.single-post .header-inner {
        padding-top: 0.3rem;
        padding-bottom: 0.3rem;
    }

    /* 메인: 로고 */
    body.home .site-header .site-title img.site-logo,
    body.blog .site-header .site-title img.site-logo {
        height: 2.0rem;
    }

    /* 싱글: 제목 */
    body.single-post .site-header .header-post-title {
        font-size: 1.3rem;
        font-weight: 600;
    }

    body.single-post .site-header .header-post-date {
        font-size: 1.0rem;
        color: rgba(255, 255, 255, 0.8);
    }

    /* 태그/카테고리/검색: 제목 */
    body.tag .site-header .header-post-title,
    body.category .site-header .header-post-title,
    body.search .site-header .header-post-title,
    body.archive .site-header .header-post-title {
        font-size: 1.6rem;
        font-weight: 500;
    }
}

/* ============================================================================
   Legacy Code Cleanup
   ============================================================================ */
/* 메뉴 관련 코드는 삭제됨 (플로팅 도크에서만 사용) */
/* 검색폼 관련 코드는 삭제됨 (플로팅 도크에서만 사용) */
/* 스크롤 애니메이션 코드는 삭제됨 (더 이상 사용 안 함) */