:root{--bg-primary:#faf9f6;--bg-secondary:#ffffff;--bg-warm:#f4f1eb;--bg-card:#ffffff;--bg-dark:#1a1a2e;--bg-game:#0d1117;--border-light:#e8e5de;--border-medium:#d4d0c8;--accent:#c0392b;--accent-hover:#e74c3c;--accent-light:rgba(192,57,43,0.08);--accent-blue:#2c5282;--accent-blue-light:rgba(44,82,130,0.08);--text-primary:#1a1a1a;--text-secondary:#555555;--text-muted:#8a8a8a;--text-light:#b0b0b0;--text-white:#ffffff;--text-link:#2c5282;--cat-space:#1a365d;--cat-bio:#22543d;--cat-physics:#553c9a;--cat-chem:#7b341e;--cat-tech:#2a4365;--radius-xs:4px;--radius-sm:6px;--radius-md:8px;--radius-lg:12px;--radius-xl:16px;--shadow-xs:0 1px 2px rgba(0,0,0,0.04);--shadow-sm:0 1px 4px rgba(0,0,0,0.06);--shadow-md:0 4px 12px rgba(0,0,0,0.08);--shadow-lg:0 8px 24px rgba(0,0,0,0.1);--shadow-card:0 1px 3px rgba(0,0,0,0.06),0 1px 2px rgba(0,0,0,0.04);--ease:cubic-bezier(0.4,0,0.2,1);--transition:all 0.2s var(--ease);--transition-slow:all 0.35s 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.article-page__date,:root[data-theme=dark] .history-card__excerpt,:root[data-theme=dark] .history-card__source{color:var(--text-muted)}:root[data-theme=dark] .navbar{background:var(--bg-secondary);border-color:var(--border-light)}:root[data-theme=dark] .navbar__menu-item,:root[data-theme=dark] .navbar__user-name{color:var(--text-secondary)}:root[data-theme=dark] .navbar__logo-text,:root[data-theme=dark] .navbar__menu-item--active{color:var(--text-primary)}:root[data-theme=dark] .navbar__menu-item:hover{background:var(--bg-warm);color:var(--text-primary)}:root[data-theme=dark] .navbar__dropdown{background:var(--bg-secondary);border-color:var(--border-light);box-shadow:var(--shadow-md)}:root[data-theme=dark] .navbar__dropdown-item{color:var(--text-secondary)}:root[data-theme=dark] .navbar__dropdown-item:hover{background:var(--bg-warm);color:var(--text-primary)}:root[data-theme=dark] .footer{background:var(--bg-secondary);border-color:var(--border-light)}:root[data-theme=dark] 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.kq-header__title{color:var(--text-primary)}:root[data-theme=dark] .atlantic-all-articles__btn{border-color:var(--border-medium)}:root[data-theme=dark] .atlantic-all-articles__btn:hover{background:var(--bg-warm)}:root[data-theme=dark] .atlantic-scroll-hint,:root[data-theme=dark] .atlantic-scroll-hint__text{color:var(--text-secondary)}:root[data-theme=dark] .atlantic-col-left{border-top-color:var(--border-light);border-bottom-color:var(--border-light)}:root[data-theme=dark] .atlantic-col-right{border-top-color:var(--border-light)}.theme-toggle{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;background:transparent;border:1px solid var(--border-light);color:var(--text-secondary);cursor:pointer;transition:var(--transition);padding:0}.theme-toggle:hover{background:var(--bg-warm);color:var(--text-primary);border-color:var(--border-medium)}.theme-toggle svg{width:18px;height:18px}*,:after,:before{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:Noto Sans KR,Inter,-apple-system,BlinkMacSystemFont,sans-serif;background:var(--bg-primary);color:var(--text-primary);min-height:100vh;line-height:1.7;-webkit-font-smoothing:antialiased}a{color:var(--text-link);text-decoration:none;transition:var(--transition)}a:hover{color:var(--accent)}img{display:block;max-width:100%}.navbar{position:fixed;top:0;left:0;right:0;height:var(--navbar-height);z-index:1000;display:flex;align-items:center;justify-content:space-between;padding:0 40px;background:var(--bg-secondary);border-bottom:1px solid var(--border-light);transition:var(--transition)}.navbar--scrolled{box-shadow:var(--shadow-sm)}.navbar__logo{display:flex;align-items:center;gap:10px;cursor:pointer}.navbar__logo-icon{font-size:24px}.navbar__logo-icon-img{width:28px;height:auto}.navbar__logo-text{font-family:Noto Sans 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img{max-width:100%;border-radius:6px;margin:12px 0}.admin-editor-wrap .ql-editor.ql-blank:before{font-style:normal;color:#bbb}@media (max-width:768px){.admin-form__row{grid-template-columns:1fr}.admin-form__thumb-area{flex-direction:column}.admin-form__thumb-preview{width:100%;height:160px}.admin-page__header{gap:12px}.admin-form__url-input,.admin-page__header{flex-direction:column;align-items:flex-start}.admin-editor-wrap .ql-container{min-height:250px}.admin-editor-wrap .ql-editor{min-height:250px;padding:12px}}