/* ========================================
   Bakey Daoom - Layout (Modernized)
   ======================================== */

/* --- Header / Navigation --- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--header-height);
    display: flex;
    align-items: center;
    transition: padding var(--transition-base), background-color var(--transition-base), box-shadow var(--transition-base), backdrop-filter var(--transition-base);
    /* 기본적으로 투명하지만 텍스트가 잘 보이도록 대비 설정 필요함. 인덱스 html에서 처리 */
}

/* Glassmorphism Header when scrolled */
.site-header.scrolled {
    background-color: var(--color-glass-bg);
    backdrop-filter: var(--blur-md);
    -webkit-backdrop-filter: var(--blur-md);
    box-shadow: 0 1px 0 var(--color-glass-border), var(--shadow-sm);
    /* 스크롤 시 약간 얇아지는 효과 추가 */
    height: calc(var(--header-height) - 10px);
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Logo */
.logo {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.logo__en {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 400;
    letter-spacing: -0.02em;
    /* 로고를 더 타이트하게 */
    color: var(--color-text-light);
    /* 홈페이지 메인은 어두운 배경이므로 밝게 */
    transition: color var(--transition-base);
}

.logo__kr {
    font-family: var(--font-body);
    font-size: 0.65rem;
    font-weight: 300;
    letter-spacing: var(--letter-spacing-widest);
    color: rgba(255, 255, 255, 0.7);
    transition: color var(--transition-base);
}

.site-header.scrolled .logo__en {
    color: var(--color-text-primary);
}

.site-header.scrolled .logo__kr {
    color: var(--color-text-muted);
}

/* Navigation */
.nav__list {
    display: flex;
    align-items: center;
    gap: 3rem;
    /* 네비게이션 간격 넓힘 */
}

.nav__link {
    position: relative;
    font-family: var(--font-body);
    font-size: 0.9rem;
    /* 텍스트 살짝 작게 */
    font-weight: 500;
    letter-spacing: 0.05em;
    color: var(--color-text-light);
    /* 밝은 텍스트 기본 */
    transition: color var(--transition-base);
    padding: 0.5rem 0;
    text-transform: uppercase;
}

.site-header.scrolled .nav__link {
    color: var(--color-text-primary);
}

/* 새롭고 깔끔한 Hover 이펙트 - 점으로 표시 */
.nav__link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%) scale(0);
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background-color: var(--color-text-light);
    transition: transform var(--transition-fast);
}

.site-header.scrolled .nav__link::after {
    background-color: var(--color-text-primary);
}

.nav__link:hover::after,
.nav__link.active::after {
    transform: translateX(-50%) scale(1);
}

.nav__link:hover {
    opacity: 1;
    /* a:hover 투명도 덮어쓰기 */
}

/* Hamburger Toggle */
.nav__toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
    width: 24px;
    /* 조금 더 작게 */
    height: 24px;
    cursor: pointer;
    z-index: 1100;
}

.nav__toggle span {
    display: block;
    width: 100%;
    height: 1.5px;
    /* 얇은 선 */
    background-color: var(--color-text-light);
    transition: all var(--transition-base);
}

.site-header.scrolled .nav__toggle span {
    background-color: var(--color-text-primary);
}

/* X 모션 */
.nav__toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

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

.nav__toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -6px);
}

/* Mobile Menu Overlay - 투명도 적용된 글래스모피즘 오버레이 */
.mobile-menu {
    display: none;
    position: fixed;
    inset: 0;
    background-color: rgba(26, 26, 26, 0.9);
    backdrop-filter: var(--blur-lg);
    -webkit-backdrop-filter: var(--blur-lg);
    z-index: 1050;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), visibility var(--transition-base);
}

.mobile-menu.active {
    opacity: 1;
    visibility: visible;
}

.mobile-menu__link {
    font-family: var(--font-display);
    font-size: var(--font-size-h2);
    color: var(--color-text-light);
    letter-spacing: 0.05em;
    transition: opacity var(--transition-base), transform var(--transition-base);
    transform: translateY(20px);
    opacity: 0;
}

.mobile-menu.active .mobile-menu__link {
    transform: translateY(0);
    opacity: 1;
}

/* stagger effect on mobile menu links */
.mobile-menu.active .mobile-menu__link:nth-child(1) {
    transition-delay: 0.1s;
}

.mobile-menu.active .mobile-menu__link:nth-child(2) {
    transition-delay: 0.15s;
}

.mobile-menu.active .mobile-menu__link:nth-child(3) {
    transition-delay: 0.2s;
}

.mobile-menu.active .mobile-menu__link:nth-child(4) {
    transition-delay: 0.25s;
}

.mobile-menu.active .mobile-menu__link:nth-child(5) {
    transition-delay: 0.3s;
}

.mobile-menu__link:hover {
    color: var(--color-accent-warm);
}

/* --- Section Spacing --- */
.section {
    padding: var(--space-2xl) 0;
    /* 여백 대폭 확장 */
}

/* section padding alt - 첫 번째 섹션이나 특정 섹션용 작은 패딩 */
.section--pt-xl {
    padding-top: var(--space-xl);
}

.section--pb-xl {
    padding-bottom: var(--space-xl);
}

.section--alt {
    background-color: var(--color-bg-secondary);
}

/* --- Grid Systems --- */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    /* 갭 넓힘 */
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-2xl);
    /* 갭을 아주 넓게 주어 여백의 미 살림 */
    align-items: center;
}

/* --- Gallery Grid --- */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--space-lg);
}

/* 벽돌 계단식 배치를 위해 */
.gallery-grid .gallery-item:nth-child(even) {
    transform: translateY(40px);
    /* 짝수 아이템은 살짝 아래로 (Masonry 느낌) */
}

/* --- Footer --- */
.site-footer {
    background-color: var(--color-bg-primary);
    /* 푸터 배경을 어두운 색에서 밝은 색으로 변경하여 극강의 깔끔함 추구 */
    border-top: 1px solid var(--color-border);
    padding: var(--space-2xl) 0 var(--space-lg);
    text-align: center;
}

.footer__logo {
    margin-bottom: var(--space-xs);
}

.footer__logo .logo__en {
    font-size: 1.5rem;
    color: var(--color-text-primary);
    font-weight: 500;
}

.footer__logo .logo__kr {
    color: var(--color-text-muted);
    font-size: 0.75rem;
}

.footer__quote {
    font-family: var(--font-accent);
    font-size: 1rem;
    font-style: italic;
    color: var(--color-text-muted);
    margin-bottom: var(--space-lg);
}

.footer__nav {
    display: flex;
    justify-content: center;
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
}

.footer__nav-link {
    font-size: var(--font-size-small);
    color: var(--color-text-secondary);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.footer__nav-link:hover {
    color: var(--color-text-primary);
    opacity: 1;
}

.footer__bottom {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border);
}

.footer__copyright {
    font-size: var(--font-size-caption);
    color: var(--color-text-muted);
}