.guide {
    font-family: var(--site-font, Pretendard, system-ui, sans-serif);
    --blue: #0064ff;
    --ink: #1a202c;
    --paper: #ffffff;
    --surface: #f7fafc;
    --muted: #4b5563;
    --rule: #d7dfe8;
    margin: 0;
    background: var(--paper);
    color: var(--ink);
    line-height: 1.7;
    word-break: keep-all;
    overflow-wrap: anywhere;
}

.guide *,
.guide *::before,
.guide *::after {
    box-sizing: border-box;
}

.guide :where(h1, h2, h3, p, figure, ul) {
    margin: 0;
}

.guide a {
    color: inherit;
    text-underline-offset: 0.22em;
}

.guide a:focus-visible {
    outline: 2px solid var(--blue);
    outline-offset: 4px;
}

.guide-shell {
    width: min(100% - 2.5rem, 62rem);
    margin-inline: auto;
}

.guide-header,
.guide-nav,
.guide-footer {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    column-gap: 1.25rem;
}

.guide-header {
    justify-content: space-between;
    min-height: 4.5rem;
    border-bottom: 1px solid var(--rule);
}

.guide-header a,
.guide-footer a {
    display: inline-flex;
    align-items: center;
    min-height: 2.75rem;
}

.guide .wordmark {
    font-family: var(--brand-font, Gungsuh, "궁서", serif);
    font-weight: 900;
    letter-spacing: -0.055em;
    white-space: nowrap;
}

.guide-header .wordmark {
    font-size: 1.25rem;
    text-decoration: none;
}

.guide-nav,
.guide-footer {
    font-size: 0.875rem;
}

.guide-nav a {
    text-decoration: none;
}

.guide-nav a:hover,
.guide-nav a[aria-current="page"] {
    color: var(--blue);
    text-decoration: underline;
}

.guide-hero {
    padding-block: clamp(2.75rem, 7vw, 5rem);
}

.about-hero {
    display: grid;
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    align-items: center;
    gap: clamp(1.75rem, 5vw, 4rem);
}

.guide-label {
    color: var(--muted);
    font-size: 0.8125rem;
    font-weight: 700;
}

.guide h1 {
    margin-block: 0.6rem 1rem;
    font-size: clamp(2.25rem, 5vw, 3.5rem);
    line-height: 1.2;
    letter-spacing: -0.055em;
}

.guide-lead {
    max-width: 34rem;
    color: var(--muted);
    font-size: 1.0625rem;
}

.guide .guide-action {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    min-height: 2.75rem;
    margin-top: 1.5rem;
    padding: 0.5rem 1rem;
    border-radius: 0.25rem;
    background: var(--blue);
    color: var(--paper);
    font-weight: 700;
    text-decoration: none;
}

.guide-action:hover {
    text-decoration: underline;
}

.guide-specimen {
    padding: clamp(1.25rem, 3vw, 2rem);
    border-top: 2px solid var(--blue);
    background: var(--surface);
}

.guide .literary {
    font-family: var(--brand-font, Gungsuh, "궁서", serif);
}

.guide-specimen .literary {
    margin-top: 1rem;
    font-size: clamp(1.25rem, 2.5vw, 1.75rem);
}

.guide-caret {
    display: inline-block;
    width: 2px;
    height: 1em;
    margin-inline-start: 0.15em;
    background: var(--blue);
    vertical-align: -0.1em;
}

.guide-section {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 2.5fr);
    gap: 1rem 2rem;
    padding-block: 1.75rem;
    border-top: 1px solid var(--rule);
}

.guide-section h2 {
    font-size: 1.25rem;
    line-height: 1.45;
    letter-spacing: -0.035em;
}

.guide-section p,
.guide-footer {
    color: var(--muted);
}

.guide-section .wordmark-sample {
    margin-bottom: 0.75rem;
    padding: 1rem 1.25rem;
    border: 1px solid var(--rule);
    color: var(--ink);
    font-size: clamp(1.875rem, 5vw, 3rem);
    line-height: 1.4;
}

.guide-palette {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0.75rem;
    margin-top: 1rem;
    padding: 0;
    list-style: none;
    font-size: 0.875rem;
}

.swatch {
    display: block;
    height: 3.5rem;
    margin-bottom: 0.4rem;
    border: 1px solid var(--rule);
    background: var(--swatch-color);
}

.swatch-blue { --swatch-color: var(--blue); }
.swatch-ink { --swatch-color: var(--ink); }
.swatch-paper { --swatch-color: var(--paper); }
.swatch-surface { --swatch-color: var(--surface); }

.guide-palette code {
    display: block;
    color: var(--muted);
}

.type-pair {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem 1.5rem;
}

.type-pair > div {
    padding-top: 0.75rem;
    border-top: 1px solid var(--rule);
}

.type-pair h3 {
    font-size: 0.875rem;
}

.type-pair .type-sample {
    margin-block: 0.35rem;
    color: var(--ink);
    font-size: 1.375rem;
    line-height: 1.5;
}

.guide-note {
    margin-top: 1rem;
    font-size: 0.8125rem;
}

.guide-footer {
    margin-top: 1.25rem;
    padding-block: 0.75rem 1.5rem;
    border-top: 1px solid var(--rule);
}

@media (max-width: 42rem) {
    .about-hero,
    .guide-section {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 28rem) {
    .guide-palette {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .type-pair {
        grid-template-columns: 1fr;
    }
}