:root {
    --font-body: 'Nanum Myeongjo', serif;
    --font-heading: 'Playfair Display', 'Nanum Myeongjo', serif;
    --line-weight: 1px;
}

:root[data-font="sans"] {
    --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Apple SD Gothic Neo', 'Noto Sans KR', sans-serif;
    --font-heading: var(--font-body);
}

body, button, input, textarea, select {
    font-family: var(--font-body);
    font-weight: 400;
}

.description-text, p, li, .project-year, .project-tag {
    font-family: var(--font-body);
}

.header, #name, h1, h2, h3, nav a, .works-search-input {
    font-family: var(--font-heading);
    font-weight: 400;
}

a,
a:link,
a:visited,
a:hover,
a:active,
a:focus,
a:focus-visible,
.site-links a[aria-current="page"] {
    text-decoration: none;
}

.site-nav {
    gap: 1rem;
    flex-wrap: wrap;
}

.site-nav-tools, .site-links {
    display: flex;
    align-items: center;
}

.site-nav-tools {
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 0.7rem 1.5rem;
}

.site-links { gap: 1vw; }
.appearance-controls {
    position: fixed;
    right: max(16px, env(safe-area-inset-right));
    bottom: max(20px, env(safe-area-inset-bottom));
    z-index: 250;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.appearance-controls[hidden] { display: none; }

.appearance-button {
    appearance: none;
    display: grid;
    place-items: center;
    width: 44px;
    height: 44px;
    flex: 0 0 44px;
    background: var(--bg-color);
    color: var(--text-color);
    border: var(--line-weight) solid var(--border-color);
    border-radius: 50%;
    padding: 0;
    font-family: var(--font-heading);
    font-size: 28px;
    font-weight: 400;
    line-height: 1;
    cursor: pointer;
    touch-action: manipulation;
}

.appearance-button:hover { opacity: 0.72; }
.appearance-font span {
    display: block;
}
:root[data-font="serif"] .appearance-font span { transform: translateY(-1px); }
:root[data-font="sans"] .appearance-font span { transform: translateY(-1px); }

a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
    outline: var(--line-weight) solid var(--text-color);
    outline-offset: 3px;
}

@media (max-width: 750px) {
    .site-nav { align-items: flex-start; gap: 0.5rem; }
    .site-nav-tools { max-width: calc(100% - 3.5rem); gap: 0.6rem; }
    .site-links { gap: 0.85rem; }
}