/* ========================================
   헤더 스타일
   ======================================== */

.header {
    background: var(--quantum-bg-primary);
    border-bottom: 1px solid var(--quantum-border-light);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    will-change: transform;
    backface-visibility: hidden;
}

.header-container {
    max-width: 1024px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    height: 60px;
}

/* 읽기 진행 바 */
.reading-progress-container {
    display: none;
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--quantum-bg-tertiary);
}

.reading-progress-bar {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--quantum-point), var(--quantum-point-hover));
    transition: width 0.1s ease-out;
    border-radius: 0 2px 2px 0;
    will-change: width;
    transform: translateZ(0);
    backface-visibility: hidden;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-menu a {
    color: var(--quantum-text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

.nav-menu a:hover {
    color: var(--quantum-text-primary);
}

/* 햄버거 메뉴 버튼 */
.hamburger-menu {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 32px;
    height: 32px;
    cursor: pointer;
    background: none;
    border: none;
    padding: 0;
}

.hamburger-menu [data-lucide] {
    width: 24px;
    height: 24px;
    color: var(--quantum-text-primary);
}

/* ========================================
   공용 로고 스타일 (헤더 + 모달)
   ======================================== */

.blog-logo {
    font-size: 20px;
    font-weight: 700;
    color: var(--quantum-text-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
}

.logo-icon {
    width: 24px;
    height: 24px;
    object-fit: contain;
    display: block;
    flex-shrink: 0;
}

.logo-text {
    font-size: 18px;
    font-weight: 700;
    color: var(--quantum-text-primary);
    line-height: 1.3;
}

/* 로고 링크 스타일 (하이퍼링크 효과 제거) */
.logo-link {
    text-decoration: none;
    color: inherit;
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo-link:hover,
.logo-link:focus,
.logo-link:active,
.logo-link:visited {
    text-decoration: none;
    color: inherit;
    outline: none;
}

/* ========================================
   헤더 반응형
   ======================================== */

/* 태블릿 (1199px 이하) */
@media (max-width: 1199px) {
    .header-container {
        width: 700px;
    }
}

/* 모바일 (700px 이하) */
@media (max-width: 700px) {
    .header-container {
        width: 100%;
        padding: 0 16px;
    }

    .nav-menu {
        display: none;
    }

    .hamburger-menu {
        display: flex;
    }

    .blog-logo .logo-text {
        font-size: 16px;
    }
}

/* 소형 모바일 (480px 이하) */
@media (max-width: 480px) {
    .header-container {
        padding: 0 12px;
    }
    
    .blog-logo .logo-text {
        font-size: 16px;
    }
}