:root {
    --paper: #f1efe8;
    --paper-2: #e8e5dc;
    --ink: #171716;
    --muted: #6e6b63;
    --line: #aaa69a;
    --soft-line: rgba(23, 23, 22, .18);
    --red: #ed4c34;
    --blue: #2457f5;
    --acid: #c8f03b;
    --code: #171716;
    --code-text: #f0eee6;
    color-scheme: light;
}

:root[data-theme="dark"] {
    --paper: #11110f;
    --paper-2: #1b1a17;
    --ink: #ece9df;
    --muted: #9c988d;
    --line: #605d55;
    --soft-line: rgba(236, 233, 223, .16);
    --red: #ff6148;
    --blue: #7392ff;
    --acid: #c8f03b;
    --code: #050505;
    --code-text: #f0eee6;
    color-scheme: dark;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    min-height: 100vh;
    background: var(--paper);
    color: var(--ink);
    font-family: Arial, 'Noto Sans KR', sans-serif;
    line-height: 1.55;
    transition: background .2s, color .2s;
}
body::before {
    content: '';
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    background-image: linear-gradient(var(--soft-line) 1px, transparent 1px), linear-gradient(90deg, var(--soft-line) 1px, transparent 1px);
    background-size: 32px 32px;
    opacity: .16;
    mask-image: linear-gradient(to bottom, #000, transparent 78%);
}
a { color: inherit; text-decoration: none; }
button, input { font: inherit; color: inherit; }
button { cursor: pointer; }
::selection { background: var(--acid); color: #111; }

/* 헤더, 사이트 네트워크 메뉴, 공용 컨트롤, 푸터, 토스트는 subsite-shell.css가 담당합니다. */

@keyframes enter { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
.animate-in { animation: enter .35s ease both; }

/* index cover */
.hero { position: relative; min-height: 720px; overflow: hidden; display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(360px, .7fr); grid-template-rows: auto 1fr auto; border: 1px solid var(--ink); background: color-mix(in srgb, var(--hero-accent) 4%, var(--paper)); box-shadow: 9px 9px 0 color-mix(in srgb, var(--ink) 14%, transparent); }
.hero::before { content: ''; position: absolute; z-index: 4; inset: 0 auto 0 0; width: 5px; background: var(--hero-accent); }
.hero-register { position: relative; z-index: 5; grid-column: 1 / -1; display: flex; justify-content: space-between; padding: 10px 14px; color: var(--paper); background: var(--ink); font: .58rem Consolas, monospace; letter-spacing: .1em; }
.hero-content { position: relative; z-index: 2; align-self: stretch; overflow: hidden; display: flex; flex-direction: column; justify-content: center; padding: 46px clamp(28px, 5vw, 70px); }
.hero-content::after { content: '001'; position: absolute; z-index: -1; right: -12px; top: -34px; color: color-mix(in srgb, var(--hero-accent) 10%, transparent); font: 900 clamp(8rem, 16vw, 15rem)/1 Arial; letter-spacing: -.12em; }
.hero-identity > span { display: inline-flex; align-items: center; gap: 8px; color: var(--hero-accent); font: 700 .62rem Consolas, monospace; letter-spacing: .14em; }
.hero-identity > span i { width: 9px; height: 9px; background: var(--acid); border: 1px solid #111; border-radius: 50%; box-shadow: 0 0 0 4px color-mix(in srgb, var(--hero-accent) 16%, transparent); }
.hero-identity h1 { max-width: 780px; margin-top: 8px; font-size: clamp(3.5rem, 7.2vw, 7.5rem); line-height: .78; letter-spacing: -.09em; text-wrap: balance; }
.hero-identity h1 em { color: var(--hero-accent); font-style: normal; }
.hero-quote { max-width: 680px; margin: 32px 0 20px; padding-top: 18px; border: 0; border-top: 1px solid color-mix(in srgb, var(--hero-accent) 42%, var(--line)); }
.hero-quote p { position: relative; font-size: clamp(1.45rem, 2.45vw, 2.65rem); line-height: 1; letter-spacing: -.055em; font-weight: 800; text-wrap: balance; }
.hero-quote p::before { content: '“'; color: var(--red); }
.hero-quote p::after { content: '”'; color: var(--red); }
.hero-quote cite { display: block; margin-top: 12px; color: var(--hero-accent); font: 700 .68rem Consolas, monospace; letter-spacing: .08em; font-style: normal; }
.hero-description { max-width: 620px; color: var(--muted); font: .75rem/1.7 Consolas, monospace; letter-spacing: .02em; }
.hero-actions { display: flex; gap: 8px; margin-top: 30px; }

.achievement-field { min-height: 0; height: 600px; display: grid; grid-template-rows: auto minmax(0, 1fr); border-left: 1px solid var(--ink); background: color-mix(in srgb, var(--hero-accent) 7%, var(--paper-2)); }
.achievement-register { min-height: 36px; display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 8px 12px; color: var(--paper); background: var(--ink); font: 700 .55rem Consolas, monospace; letter-spacing: .1em; }
.achievement-stack { min-height: 0; align-content: start; display: grid; gap: 13px; overflow-y: auto; overscroll-behavior: contain; padding: 22px 24px 26px; scrollbar-color: var(--hero-accent) color-mix(in srgb, var(--ink) 10%, transparent); scrollbar-width: thin; }
.achievement-stack::-webkit-scrollbar { width: 8px; }
.achievement-stack::-webkit-scrollbar-track { background: color-mix(in srgb, var(--ink) 10%, transparent); }
.achievement-stack::-webkit-scrollbar-thumb { background: var(--hero-accent); border: 2px solid var(--paper-2); }
.achievement-card { position: relative; isolation: isolate; overflow: hidden; min-height: 138px; padding: 16px; border: 1px solid var(--ink); background: var(--paper); box-shadow: 5px 5px 0 color-mix(in srgb, var(--ink) 16%, transparent); }
.achievement-card::before { content: ''; position: absolute; z-index: -1; inset: 0 0 auto; height: 5px; background: var(--hero-accent); }
.achievement-card-head { position: relative; z-index: 2; display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; color: var(--muted); font: 700 .53rem/1.35 Consolas, monospace; letter-spacing: .08em; }
.achievement-card-head span { max-width: 62%; }
.achievement-card strong { position: relative; z-index: 2; display: block; max-width: 86%; margin-top: 20px; font-size: clamp(1.2rem, 2vw, 1.75rem); line-height: .96; letter-spacing: -.055em; text-wrap: balance; }
.achievement-card > p { position: relative; z-index: 2; margin-top: 8px; color: var(--muted); font: 700 .65rem Consolas, monospace; letter-spacing: .03em; }
.achievement-number { position: absolute; z-index: 0; right: 9px; bottom: -22px; color: color-mix(in srgb, var(--hero-accent) 18%, transparent); font: 900 6.4rem/1 Arial; letter-spacing: -.12em; }
.award-card { color: var(--paper); background: var(--ink); box-shadow: 6px 6px 0 var(--hero-accent); }
.award-card::before { background: var(--acid); }
.award-card .achievement-card-head, .award-card > p { color: color-mix(in srgb, var(--paper) 70%, transparent); }
.award-card .achievement-number { color: color-mix(in srgb, var(--paper) 9%, transparent); }
.exhibition-card { background: color-mix(in srgb, var(--blue) 9%, var(--paper)); box-shadow: 5px 5px 0 var(--blue); }
.exhibition-card::before { background: var(--blue); }
.exhibition-card .achievement-number { color: color-mix(in srgb, var(--blue) 13%, transparent); }
.project-card { background: color-mix(in srgb, var(--acid) 12%, var(--paper)); box-shadow: 5px 5px 0 var(--acid); }
.project-card::before { background: var(--acid); }
.project-card .achievement-number { color: color-mix(in srgb, var(--acid) 24%, transparent); }
.scholarship-card { background: color-mix(in srgb, var(--red) 7%, var(--paper)); box-shadow: 5px 5px 0 var(--red); }
.scholarship-card::before { background: var(--red); }
.scholarship-card .achievement-number { color: color-mix(in srgb, var(--red) 13%, transparent); }
.achievement-badges { position: relative; z-index: 2; display: flex; flex-wrap: wrap; gap: 5px; margin-top: 17px; }
.achievement-badges span { padding: 4px 6px; color: #111; background: var(--acid); border: 1px solid #111; font: 800 .5rem Consolas, monospace; letter-spacing: .04em; }
.achievement-badges span:first-child { color: var(--paper); background: transparent; border-color: color-mix(in srgb, var(--paper) 36%, transparent); }
.hero-stats { position: relative; z-index: 5; grid-column: 1 / -1; display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--ink); background: var(--paper); }
.hero-stats div { position: relative; min-height: 86px; overflow: hidden; display: grid; grid-template-columns: auto 1fr; align-items: center; gap: 12px; padding: 15px 20px; border-right: 1px solid var(--ink); background: color-mix(in srgb, var(--stat-accent) 5%, var(--paper)); }
.hero-stats div::before { content: ''; position: absolute; left: 0; top: 0; width: 42%; height: 4px; background: var(--stat-accent); }
.hero-stats i { position: absolute; right: 12px; top: 12px; width: 8px; height: 8px; background: var(--acid); border: 1px solid #111; border-radius: 50%; }
.hero-stats div:last-child { border-right: 0; }
.hero-stats strong { font: 900 2.1rem Arial; letter-spacing: -.07em; }
.hero-stats span { color: var(--muted); font: .6rem Consolas, monospace; letter-spacing: .1em; }


/* index lists */
.home-section { margin-top: 96px; }
.section-heading { display: flex; align-items: end; justify-content: space-between; margin-bottom: 20px; padding-bottom: 10px; border-bottom: 3px solid var(--ink); }
.section-heading h2, .bottom-categories h2 { margin-top: 4px; font-size: clamp(2rem, 4.5vw, 4.5rem); line-height: .95; letter-spacing: -.065em; }
.section-note { color: var(--muted); font: .62rem Consolas, monospace; }
.recent-shell { border: 1px solid var(--ink); box-shadow: 8px 8px 0 color-mix(in srgb, var(--ink) 14%, transparent); }
.recent-register { min-height: 38px; display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 8px 12px; color: var(--paper); background: var(--ink); font: .58rem Consolas, monospace; letter-spacing: .1em; }
.latest-grid { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); }
.post-item { --post-accent: var(--blue); position: relative; isolation: isolate; overflow: hidden; margin-bottom: 10px; padding: 22px; border: 1px solid var(--ink); background: color-mix(in srgb, var(--post-accent) 4%, var(--paper)); cursor: pointer; transition: color .22s, background .22s, transform .22s, box-shadow .22s; }
.post-item::before { content: ''; position: absolute; z-index: -1; inset: 0 auto auto 0; width: 100%; height: 4px; background: var(--post-accent); transition: height .22s; }
.post-item:hover, .post-item:focus-visible { z-index: 3; outline: 0; color: #fff; background: var(--post-accent); transform: translate(-5px, -5px); box-shadow: 6px 6px 0 var(--ink); }
.post-item:hover::before, .post-item:focus-visible::before { height: 100%; }
.post-item.compact { min-height: 310px; margin: 0; grid-column: span 5; border-width: 0 1px 1px 0; display: flex; flex-direction: column; }
.post-item.compact:nth-child(1), .post-item.compact:nth-child(4) { grid-column: span 7; }
.post-item.compact::after { content: ''; position: absolute; z-index: -1; right: -75px; bottom: -105px; width: 220px; height: 220px; border: 1px solid color-mix(in srgb, var(--post-accent) 40%, transparent); border-radius: 50%; box-shadow: 0 0 0 34px color-mix(in srgb, var(--post-accent) 7%, transparent), 0 0 0 68px color-mix(in srgb, var(--post-accent) 4%, transparent); }
.post-card-index { position: absolute; z-index: -1; right: 14px; top: -18px; color: color-mix(in srgb, var(--post-accent) 15%, transparent); font: 900 clamp(5rem, 8vw, 8rem)/1 Arial; letter-spacing: -.1em; transition: color .22s, transform .22s; }
.post-item:hover .post-card-index, .post-item:focus-visible .post-card-index { color: rgba(255,255,255,.1); transform: translateY(9px); }
.post-topline { position: relative; display: flex; justify-content: space-between; align-items: center; gap: 10px; margin-bottom: 28px; color: var(--muted); font: .56rem Consolas, monospace; text-transform: uppercase; }
.post-category { display: inline-flex; align-items: center; gap: 8px; color: var(--post-accent); font-weight: 700; letter-spacing: .08em; }
.post-category i { min-width: 38px; height: 38px; padding: 0 6px; display: grid; place-items: center; color: #fff; background: var(--post-accent); border-radius: 50%; font: 700 .54rem Consolas, monospace; font-style: normal; box-shadow: inset 0 0 0 3px color-mix(in srgb, var(--post-accent) 74%, #fff); }
.post-item:hover .post-category, .post-item:focus-visible .post-category { color: var(--acid); }
.post-item:hover .post-category i, .post-item:focus-visible .post-category i { color: var(--post-accent); background: #fff; box-shadow: none; }
.post-item:hover .post-topline time, .post-item:focus-visible .post-topline time { color: rgba(255,255,255,.72); }
.post-item h3 { font-size: 1.2rem; line-height: 1.25; letter-spacing: -.04em; }
.post-item.compact h3 { max-width: 88%; font-size: clamp(1.55rem, 2.6vw, 2.65rem); line-height: 1; letter-spacing: -.06em; text-wrap: balance; }
.post-item > p { margin-top: 8px; color: var(--muted); font-size: .84rem; }
.language-badges { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 15px; }
.language-badge { padding: 2px 5px; color: var(--muted); border: 1px solid var(--line); font: .54rem Consolas, monospace; }
.post-item:hover .language-badge, .post-item:focus-visible .language-badge { color: #fff; border-color: rgba(255,255,255,.42); }
.post-item:hover > p, .post-item:focus-visible > p { color: rgba(255,255,255,.75); }
.post-card-footer { min-height: 25px; display: flex; justify-content: space-between; align-items: end; gap: 12px; margin-top: auto; padding-top: 24px; }
.inline-tags { display: flex; flex-wrap: wrap; gap: 5px; }
.inline-tag { display: inline-flex; align-items: center; min-height: 22px; padding: 2px 6px; border: 1px solid currentColor; font: .6rem Consolas, monospace; }
.post-item:hover .inline-tag, .post-item:focus-visible .inline-tag { color: #fff; border-color: rgba(255,255,255,.42); }
.read-badge, .read-arrow { flex: 0 0 auto; display: flex; align-items: center; gap: 8px; font: .58rem Consolas, monospace; }
.read-badge { color: var(--post-accent); }
.read-badge b, .read-arrow b { width: 25px; height: 25px; display: grid; place-items: center; color: #fff; background: var(--post-accent); border-radius: 50%; transition: transform .2s; }
.post-item:hover .read-badge, .post-item:hover .read-arrow, .post-item:focus-visible .read-badge, .post-item:focus-visible .read-arrow { color: #fff; }
.post-item:hover .read-badge b, .post-item:hover .read-arrow b, .post-item:focus-visible .read-badge b, .post-item:focus-visible .read-arrow b { color: #111; background: var(--acid); transform: rotate(45deg); }
.subject-index-shell { border: 1px solid var(--ink); box-shadow: 8px 8px 0 color-mix(in srgb, var(--ink) 14%, transparent); }
.subject-index-register { min-height: 38px; display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 8px 12px; color: var(--paper); background: var(--ink); font: .58rem Consolas, monospace; letter-spacing: .1em; }
.theme-grid { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); }
.theme-card { position: relative; isolation: isolate; min-height: 330px; overflow: hidden; display: flex; flex-direction: column; grid-column: span 2; padding: 24px; border-right: 1px solid var(--ink); border-bottom: 1px solid var(--ink); background: color-mix(in srgb, var(--card-accent) 5%, var(--paper)); transition: color .22s, background .22s, transform .22s, box-shadow .22s; }
.theme-card:nth-child(5n + 4), .theme-card:nth-child(5n + 5) { grid-column: span 3; }
.theme-card::before { content: ''; position: absolute; z-index: -1; inset: 0 auto auto 0; width: 100%; height: 5px; background: var(--card-accent); transition: height .22s; }
.theme-card::after { content: ''; position: absolute; z-index: -1; right: -72px; bottom: -92px; width: 220px; height: 220px; border: 1px solid color-mix(in srgb, var(--card-accent) 42%, transparent); border-radius: 50%; box-shadow: 0 0 0 34px color-mix(in srgb, var(--card-accent) 7%, transparent), 0 0 0 68px color-mix(in srgb, var(--card-accent) 5%, transparent); transition: transform .28s; }
.theme-card:hover, .theme-card:focus-visible { z-index: 3; outline: 0; color: #fff; background: var(--card-accent); transform: translate(-5px, -5px); box-shadow: 6px 6px 0 var(--ink); }
.theme-card:hover::before, .theme-card:focus-visible::before { height: 100%; }
.theme-card:hover::after, .theme-card:focus-visible::after { border-color: rgba(255,255,255,.4); box-shadow: 0 0 0 34px rgba(255,255,255,.07), 0 0 0 68px rgba(255,255,255,.05); transform: translate(-16px, -16px); }
.theme-card-index { position: absolute; z-index: -1; right: 14px; top: -18px; color: color-mix(in srgb, var(--card-accent) 15%, transparent); font: 900 clamp(5rem, 8vw, 8.5rem)/1 Arial; letter-spacing: -.1em; transition: color .22s, transform .22s; }
.theme-card:hover .theme-card-index, .theme-card:focus-visible .theme-card-index { color: rgba(255,255,255,.1); transform: translateY(9px); }
.theme-card-head { position: relative; display: flex; justify-content: space-between; align-items: start; }
.category-glyph { width: 58px; height: 58px; display: grid; place-items: center; border: 1px solid var(--ink); border-radius: 50%; font: 700 .72rem Consolas, monospace; }
.theme-card .category-glyph { position: relative; color: #fff; background: var(--card-accent); border-color: var(--card-accent); box-shadow: inset 0 0 0 5px color-mix(in srgb, var(--card-accent) 78%, #fff); }
.theme-card .category-glyph i { position: absolute; right: -4px; top: 4px; width: 10px; height: 10px; background: var(--acid); border: 1px solid #111; border-radius: 50%; }
.theme-card:hover .category-glyph, .theme-card:focus-visible .category-glyph { color: var(--card-accent); background: #fff; border-color: #fff; box-shadow: none; }
.category-count { display: grid; justify-items: end; font-family: Consolas, monospace; line-height: 1; }
.category-count strong { font: 900 1.55rem Arial; letter-spacing: -.07em; }
.category-count small { margin-top: 5px; color: var(--muted); font: .52rem Consolas, monospace; letter-spacing: .12em; }
.theme-card:hover .category-count small, .theme-card:focus-visible .category-count small { color: rgba(255,255,255,.72); }
.theme-card-copy { position: relative; margin-top: 30px; }
.theme-card-code { color: var(--card-accent); font: 700 .56rem Consolas, monospace; letter-spacing: .13em; }
.theme-card:hover .theme-card-code, .theme-card:focus-visible .theme-card-code { color: var(--acid); }
.theme-card h3 { max-width: 92%; margin-top: 5px; font-size: clamp(1.55rem, 2.2vw, 2.3rem); line-height: .98; letter-spacing: -.065em; text-wrap: balance; }
.theme-card-tags { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 13px; }
.theme-card-tags span { padding: 3px 6px; color: var(--muted); border: 1px solid color-mix(in srgb, var(--card-accent) 35%, var(--line)); font: .54rem Consolas, monospace; }
.theme-card:hover .theme-card-tags span, .theme-card:focus-visible .theme-card-tags span { color: #fff; border-color: rgba(255,255,255,.42); }
.theme-card-latest { min-height: 42px; margin-top: 20px; display: grid; gap: 3px; }
.theme-card-latest span { color: var(--muted); font: .5rem Consolas, monospace; letter-spacing: .12em; }
.theme-card-latest strong { max-width: 92%; overflow: hidden; display: -webkit-box; color: var(--ink); font-size: .72rem; line-height: 1.35; font-weight: 600; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.theme-card:hover .theme-card-latest span, .theme-card:focus-visible .theme-card-latest span { color: rgba(255,255,255,.65); }
.theme-card:hover .theme-card-latest strong, .theme-card:focus-visible .theme-card-latest strong { color: #fff; }
.theme-card-meter { position: relative; height: 15px; margin-top: auto; border-bottom: 1px solid color-mix(in srgb, var(--card-accent) 50%, var(--line)); }
.theme-card-meter i { position: absolute; left: 0; bottom: -1px; width: var(--category-weight); height: 4px; background: var(--card-accent); }
.theme-card-meter span { position: absolute; right: 0; top: -2px; color: var(--muted); font: .48rem Consolas, monospace; }
.theme-card:hover .theme-card-meter, .theme-card:focus-visible .theme-card-meter { border-color: rgba(255,255,255,.42); }
.theme-card:hover .theme-card-meter i, .theme-card:focus-visible .theme-card-meter i { background: var(--acid); }
.theme-card:hover .theme-card-meter span, .theme-card:focus-visible .theme-card-meter span { color: rgba(255,255,255,.7); }
.card-link { display: flex; justify-content: space-between; align-items: center; padding-top: 12px; font: .6rem Consolas, monospace; letter-spacing: .06em; }
.card-link b { width: 25px; height: 25px; display: grid; place-items: center; color: #fff; background: var(--card-accent); border-radius: 50%; transition: transform .2s; }
.theme-card:hover .card-link b, .theme-card:focus-visible .card-link b { color: #111; background: var(--acid); transform: rotate(45deg); }

/* category and search */
.page-hero { padding: 44px 0 62px; border-bottom: 3px solid var(--ink); }
.back-link { display: inline-block; margin-bottom: 44px; color: var(--muted); font: .64rem Consolas, monospace; }
.back-link:hover { color: var(--red); }
.page-hero-title { display: flex; align-items: center; gap: 24px; }
.category-glyph.large { width: 86px; height: 86px; flex: 0 0 auto; color: #fff; background: var(--blue); border: 0; }
.page-hero h1, .article-header h1, .search-hero h1 { font-size: clamp(3rem, 7vw, 7rem); line-height: .9; letter-spacing: -.08em; }
.page-hero-title > div > p:last-child, .search-hero > p:last-child { margin-top: 14px; color: var(--muted); font-size: .85rem; }
.category-layout { display: grid; grid-template-columns: 210px minmax(0, 1fr); gap: 48px; padding-top: 54px; }
.tag-sidebar { position: sticky; top: 106px; align-self: start; }
.sidebar-label { margin-bottom: 12px; padding-bottom: 8px; border-bottom: 1px solid var(--ink); color: var(--muted); font: .6rem Consolas, monospace; letter-spacing: .1em; }
.tag-btn { display: flex; justify-content: space-between; margin-bottom: -1px; padding: 9px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); font: .68rem Consolas, monospace; }
.tag-btn:hover, .tag-btn.active { color: #111; background: var(--acid); }
.list-heading { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.list-heading h2 { font-size: 1.4rem; }
.list-heading span { color: var(--muted); font: .62rem Consolas, monospace; }
.pagination { display: flex; justify-content: space-between; align-items: center; padding-top: 30px; }
.pagination a, .pagination > span { width: 80px; color: var(--muted); font: .68rem Consolas, monospace; }
.pagination a:last-child, .pagination > span:last-child { text-align: right; }
.pagination strong { font: .68rem Consolas, monospace; }
.pagination i { color: var(--red); font-style: normal; }
.search-hero { max-width: 900px; padding: 78px 0 55px; }
.search-hero h1 { margin: 12px 0; color: var(--blue); }
.search-results { max-width: 900px; }
.empty-state { padding: 90px 25px; text-align: center; border: 1px solid var(--ink); }
.empty-state strong { display: block; margin-bottom: 8px; font-size: 1.35rem; }
.empty-state p { color: var(--muted); }
.empty-state a { display: inline-block; margin-top: 20px; color: var(--blue); font: .68rem Consolas, monospace; }
.empty-state.not-found span { display: block; color: var(--red); font: 900 6rem Arial; }
.loading-state { min-height: 440px; display: grid; place-content: center; justify-items: center; gap: 14px; color: var(--muted); }
.loading-state span { width: 30px; height: 30px; border: 2px solid var(--line); border-top-color: var(--red); border-radius: 50%; animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* article */
.article-header { --article-accent: var(--blue); position: relative; max-width: none; overflow: hidden; margin: 0; border: 1px solid var(--ink); background: color-mix(in srgb, var(--article-accent) 5%, var(--paper)); box-shadow: 9px 9px 0 color-mix(in srgb, var(--ink) 14%, transparent); }
.article-header::before { content: ''; position: absolute; z-index: 4; inset: 0 auto 0 0; width: 5px; background: var(--article-accent); }
.article-register, .article-reading-register { min-height: 38px; display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 8px 12px; color: var(--paper); background: var(--ink); font: .58rem Consolas, monospace; letter-spacing: .1em; }
.article-cover { display: grid; grid-template-columns: minmax(0, 1fr) minmax(240px, .31fr); }
.article-cover-main { position: relative; z-index: 2; padding: 42px clamp(28px, 5vw, 64px) 48px; }
.article-cover-main::after { content: ''; position: absolute; z-index: -1; right: -40px; bottom: -95px; width: 260px; height: 260px; border: 1px solid color-mix(in srgb, var(--article-accent) 28%, transparent); border-radius: 50%; box-shadow: 0 0 0 42px color-mix(in srgb, var(--article-accent) 5%, transparent), 0 0 0 84px color-mix(in srgb, var(--article-accent) 3%, transparent); }
.article-header h1 { max-width: 920px; margin: 18px 0; font-size: clamp(3rem, 6.7vw, 6.9rem); line-height: .86; letter-spacing: -.075em; text-wrap: balance; }
.article-cover-main > p { max-width: 780px; margin-top: 18px; color: var(--muted); font-size: .9rem; line-height: 1.65; }
.article-cover-mark { position: relative; min-height: 100%; overflow: hidden; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 14px; padding: 28px; border-left: 1px solid var(--ink); background: color-mix(in srgb, var(--article-accent) 10%, var(--paper-2)); }
.article-cover-mark::before, .article-cover-mark::after { content: ''; position: absolute; background: var(--ink); }
.article-cover-mark::before { left: 0; top: 50%; width: 100%; height: 1px; }
.article-cover-mark::after { left: 50%; top: 0; width: 1px; height: 100%; }
.article-cover-number { position: absolute; right: -12px; top: -28px; color: color-mix(in srgb, var(--article-accent) 18%, transparent); font: 900 clamp(6rem, 10vw, 10rem)/1 Arial; letter-spacing: -.1em; }
.article-cover-glyph { position: relative; z-index: 2; width: 86px; height: 86px; display: grid; place-items: center; color: #fff; background: var(--article-accent); border: 1px solid var(--ink); border-radius: 50%; font: 900 .84rem Consolas, monospace; box-shadow: 0 0 0 16px var(--acid), 0 0 0 17px var(--ink); }
.article-cover-glyph i { position: absolute; right: -12px; top: -10px; width: 12px; height: 12px; background: var(--red); border: 1px solid #111; border-radius: 50%; }
.article-cover-label, .article-cover-date { position: relative; z-index: 2; padding: 4px 7px; color: var(--paper); background: var(--ink); font: .54rem Consolas, monospace; letter-spacing: .08em; }
.article-cover-label { transform: rotate(-3deg); }
.article-cover-date { transform: rotate(3deg); }
.post-meta-line { display: flex; flex-wrap: wrap; gap: 10px; color: var(--muted); font: .62rem Consolas, monospace; text-transform: uppercase; }
.post-meta-line span:first-child { color: var(--article-accent); font-weight: 700; }
.post-meta-line > *:not(:last-child)::after { content: '/'; margin-left: 10px; color: var(--line); }
.article-actions { display: flex; justify-content: space-between; align-items: center; gap: 18px; margin-top: 32px; }
.article-language-row { display: flex; align-items: center; gap: 14px; margin-top: 28px; }
.article-language-row > span { color: var(--muted); font: .58rem Consolas, monospace; letter-spacing: .08em; }
.article-language-row > div { display: flex; flex-wrap: wrap; gap: 4px; }
.article-language { padding: 5px 8px; border: 1px solid var(--ink); font: .62rem Consolas, monospace; }
.article-language:hover, .article-language.active { color: #fff; background: var(--article-accent); border-color: var(--article-accent); }

.static-page { max-width: 900px; margin: 0 auto; padding: 72px 0 120px; }
.static-page > header { margin-bottom: 42px; padding-bottom: 24px; border-bottom: 2px solid var(--ink); }
.static-page h1 { margin: 10px 0 14px; font-size: clamp(2rem, 6vw, 4.6rem); line-height: .95; }
.static-page .static-summary { max-width: 720px; color: var(--muted); font-size: 1rem; line-height: 1.7; }
.static-back { display: inline-block; margin-bottom: 24px; font: 700 .7rem Consolas, monospace; letter-spacing: .06em; }
.static-content h2 { margin: 54px 0 18px; font-size: clamp(1.4rem, 3vw, 2rem); }
.static-content h3 { margin: 36px 0 14px; font-size: 1.2rem; }
.static-content p, .static-content li { font-size: 1rem; line-height: 1.85; }
.static-content pre { overflow-x: auto; margin: 24px 0; padding: 20px; color: #f5f5f5; background: #151515; border: 1px solid #000; }
.static-content code { font-family: Consolas, monospace; }
.static-content p code, .static-content li code { padding: 2px 5px; color: var(--ink); background: var(--panel); border: 1px solid var(--line); }
.static-content img { max-width: 100%; height: auto; }
.static-content blockquote { margin: 24px 0; padding: 16px 20px; border-left: 4px solid var(--red); background: var(--panel); }
.static-content blockquote p { margin: 0; }
.static-content .table-wrap { overflow-x: auto; margin: 24px 0; }
.static-content table { width: 100%; min-width: 560px; border-collapse: collapse; }
.static-content th, .static-content td { padding: 10px 12px; border: 1px solid var(--line); text-align: left; vertical-align: top; }
.static-content th { background: var(--panel); font: 700 .68rem Consolas, monospace; letter-spacing: .04em; }
.static-language-row { margin: 22px 0; padding-top: 16px; border-top: 1px solid var(--line); }
.static-language-row > span { display: block; margin-bottom: 9px; color: var(--muted); font: 700 .58rem Consolas, monospace; letter-spacing: .1em; }
.static-language-row > div { display: flex; flex-wrap: wrap; gap: 6px; }
.static-language-row .article-language { padding: 7px 9px; border: 1px solid var(--line); font: 700 .62rem Consolas, monospace; }
.static-language-row .article-language.active { color: var(--paper); background: var(--ink); border-color: var(--ink); }
.static-page .translation-warning { margin: 18px 0; padding: 12px 14px; color: var(--muted); border: 1px solid var(--line); font: 700 .62rem Consolas, monospace; letter-spacing: .08em; }
.static-archive { display: grid; gap: 18px; }
.static-archive article { padding: 22px; background: var(--panel); border: 1px solid var(--line); }
.static-archive h2 { margin: 5px 0 8px; font-size: 1.25rem; }
.static-archive p { margin: 0; color: var(--muted); line-height: 1.6; }
.static-meta { font: 700 .62rem Consolas, monospace; letter-spacing: .08em; color: var(--muted); }
.translation-warning { max-width: 1080px; margin: 38px auto 0; padding: 13px 16px; display: grid; grid-template-columns: 135px 1fr; gap: 16px; border: 1px solid var(--red); background: color-mix(in srgb, var(--red) 7%, var(--paper)); }
.translation-warning strong { color: var(--red); font: .62rem Consolas, monospace; letter-spacing: .08em; }
.translation-warning p { font-size: .78rem; }
.copy-link { padding: 7px 10px; border: 1px solid var(--ink); background: transparent; font: .62rem Consolas, monospace; }
.copy-link:hover { color: #fff; background: var(--article-accent); border-color: var(--article-accent); }
.article-reading-shell { --article-accent: var(--blue); margin-top: 54px; border: 1px solid var(--ink); background: color-mix(in srgb, var(--article-accent) 4%, var(--paper)); box-shadow: 9px 9px 0 color-mix(in srgb, var(--ink) 14%, transparent); }
.article-reading-register span:last-child { color: color-mix(in srgb, var(--paper) 70%, transparent); }
.article-layout { display: grid; grid-template-columns: 200px minmax(0, 820px); justify-content: center; align-items: start; gap: 42px; padding: 44px clamp(22px, 4vw, 54px) 58px; }
.article-layout.no-toc { grid-template-columns: minmax(0, 860px); }
.toc { position: sticky; top: 108px; align-self: start; max-height: calc(100vh - 135px); overflow: auto; border: 1px solid var(--ink); background: var(--paper); }
.toc > p { padding: 10px 12px; color: #fff; background: var(--article-accent); border-bottom: 1px solid var(--ink); font: 700 .58rem Consolas, monospace; letter-spacing: .1em; }
.toc > p::before { content: '●'; margin-right: 7px; color: var(--acid); }
.toc nav { padding: 0 12px 12px; }
.toc a { display: block; padding: 9px 0; color: var(--muted); border-bottom: 1px solid var(--soft-line); font-size: .68rem; line-height: 1.4; }
.toc a:hover { color: var(--article-accent); }
.toc .toc-h3 { padding-left: 12px; }
.markdown-body { min-width: 0; padding: clamp(28px, 4.5vw, 56px); color: var(--ink); background: var(--paper); border: 1px solid var(--ink); box-shadow: 7px 7px 0 color-mix(in srgb, var(--article-accent) 24%, transparent); font-size: 1rem; line-height: 1.85; overflow-wrap: anywhere; counter-reset: article-section; }
.markdown-body h1:first-child { display: none; }
.markdown-body h1 { margin: 2.2em 0 .7em; font-size: 2.2rem; }
.markdown-body h2 { margin: 2.5em 0 .8em; padding: 11px 0; border-top: 4px solid var(--article-accent); border-bottom: 1px solid var(--ink); font-size: 1.65rem; letter-spacing: -.04em; scroll-margin-top: 100px; counter-increment: article-section; }
.markdown-body h2::before { content: 'SECTION / ' counter(article-section, decimal-leading-zero); display: block; margin-bottom: 5px; color: var(--article-accent); font: 700 .54rem Consolas, monospace; letter-spacing: .12em; }
.markdown-body h3 { margin: 2em 0 .7em; font-size: 1.2rem; scroll-margin-top: 100px; }
.markdown-body p { margin-bottom: 1.35em; }
.markdown-body a { color: var(--blue); text-decoration: underline; text-underline-offset: 3px; }
.markdown-body ul, .markdown-body ol { margin: 0 0 1.4em 1.4em; }
.markdown-body blockquote { margin: 1.5em 0; padding: 15px 18px; border-left: 8px solid var(--article-accent); background: color-mix(in srgb, var(--article-accent) 7%, var(--paper-2)); }
.markdown-body pre { width: 100%; max-width: 100%; margin: 1.7em 0; padding: 0; overflow: auto; color: var(--code-text); border: 1px solid var(--ink); border-radius: 0; background: var(--code) !important; box-shadow: 8px 8px 0 var(--article-accent); }
.markdown-body pre::before { content: 'CODE / RAW'; display: block; padding: 7px 12px; color: #111; background: var(--acid); border-bottom: 1px solid #111; font: 700 .56rem Consolas, monospace; letter-spacing: .1em; }
.markdown-body pre code { display: block; min-width: max-content; padding: 18px 20px 22px; }
.markdown-body code { font-family: Consolas, 'Courier New', monospace; font-size: .83rem; }
.markdown-body :not(pre) > code { padding: 2px 5px; color: var(--red); border: 1px solid var(--line); background: var(--paper-2); }
.article-figure { margin: 34px 0; }
.article-image-button { width: 100%; display: block; padding: 0; border: 0; background: transparent; cursor: zoom-in; }
.markdown-body .article-figure img { width: auto; max-width: 100%; max-height: 76vh; height: auto; display: block; margin: 0 auto; border: 1px solid var(--ink); transition: filter .15s, transform .15s; }
.article-image-button:hover img { filter: contrast(1.04); transform: translate(-3px, -3px); box-shadow: 5px 5px 0 var(--blue); }
.article-figure figcaption { margin-top: 9px; padding-top: 7px; color: var(--muted); border-top: 1px solid var(--line); font: .64rem/1.5 Consolas, monospace; }
.markdown-body table { width: 100%; margin: 24px 0; border-collapse: collapse; font-size: .86rem; }
.markdown-body th, .markdown-body td { padding: 9px; border: 1px solid var(--ink); text-align: left; }
.markdown-body th { color: var(--paper); background: var(--ink); }
.post-navigation { max-width: 1080px; margin: 54px auto 0; display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--ink); background: var(--paper); box-shadow: 7px 7px 0 color-mix(in srgb, var(--article-accent) 22%, transparent); }
.post-navigation a { min-height: 100px; display: flex; flex-direction: column; justify-content: center; gap: 5px; padding: 15px; }
.post-navigation a + a { border-left: 1px solid var(--ink); }
.post-navigation a:hover { color: #fff; background: var(--article-accent); }
.post-navigation a.next { text-align: right; }
.post-navigation span { color: var(--muted); font: .58rem Consolas, monospace; }
.post-navigation a:hover span { color: rgba(255,255,255,.7); }
.post-navigation strong { font-size: .8rem; }

/* lower index */
.bottom-categories { margin-top: 110px; padding-top: 42px; border-top: 8px solid var(--ink); }
.bottom-cat-grid { display: flex; flex-wrap: wrap; gap: 0; margin-top: 24px; border-left: 1px solid var(--ink); border-top: 1px solid var(--ink); }
.bottom-cat-item { padding: 8px 12px; border-right: 1px solid var(--ink); border-bottom: 1px solid var(--ink); font: .64rem Consolas, monospace; }
.bottom-cat-item:hover, .bottom-cat-item.active { color: #111; background: var(--acid); }
.image-viewer { width: min(94vw, 1400px); height: min(92vh, 1000px); max-width: none; max-height: none; margin: auto; padding: 46px 24px 20px; color: var(--ink); border: 1px solid var(--ink); background: var(--paper); }
.image-viewer::backdrop { background: rgba(0, 0, 0, .78); backdrop-filter: blur(4px); }
.image-viewer[open] { display: grid; place-items: center; grid-template-rows: minmax(0, 1fr) auto; }
.image-viewer img { max-width: 100%; max-height: calc(92vh - 100px); object-fit: contain; }
.image-viewer p { min-height: 20px; margin-top: 10px; color: var(--muted); font: .64rem Consolas, monospace; }
.image-viewer-close { position: absolute; right: 12px; top: 10px; padding: 5px 8px; border: 1px solid var(--ink); background: transparent; font: .6rem Consolas, monospace; }
.image-viewer-close:hover { color: var(--paper); background: var(--ink); }

@media (max-width: 920px) {
    .hero { grid-template-columns: 1fr; }
    .achievement-field { height: 420px; border-top: 1px solid var(--ink); border-left: 0; }
    .achievement-stack { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .hero-stats { grid-template-columns: repeat(2, 1fr); }
    .hero-stats div:nth-child(2) { border-right: 0; }
    .hero-stats div:nth-child(-n+2) { border-bottom: 1px solid var(--ink); }
    .latest-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .post-item.compact { grid-column: span 1 !important; }
    .theme-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .theme-card { min-height: 310px; grid-column: span 1 !important; }
    .article-cover { grid-template-columns: minmax(0, 1fr) 220px; }
    .article-layout { grid-template-columns: minmax(0, 800px); }
    .toc { display: none; }
}

@media (max-width: 680px) {
    .hero { min-height: 0; }
    .hero-register { font-size: .5rem; }
    .hero-register span:last-child { display: none; }
    .hero-content { padding: 40px 22px 44px; }
    .hero-content::after { top: -10px; font-size: 8rem; }
    .hero-identity h1 { font-size: clamp(3.4rem, 19vw, 5.4rem); line-height: .8; }
    .hero-quote { margin-top: 27px; }
    .hero-quote p { font-size: clamp(1.35rem, 6.7vw, 2rem); }
    .hero-description br { display: none; }
    .hero-actions { flex-direction: column; align-items: stretch; }
    .primary-button, .ghost-button { justify-content: space-between; }
    .achievement-field { height: 520px; }
    .achievement-stack { grid-template-columns: 1fr; padding: 22px 18px 26px; }
    .achievement-card { min-height: 154px; }
    .hero-stats div { min-height: 70px; }
    .home-section { margin-top: 72px; }
    .section-note { display: none; }
    .latest-grid, .theme-grid { grid-template-columns: 1fr; }
    .recent-shell, .subject-index-shell { box-shadow: 5px 5px 0 color-mix(in srgb, var(--ink) 14%, transparent); }
    .recent-register, .subject-index-register { align-items: flex-start; flex-direction: column; gap: 3px; }
    .recent-register span:last-child, .subject-index-register span:last-child { color: color-mix(in srgb, var(--paper) 65%, transparent); }
    .post-item.compact { min-height: 280px; padding: 20px; }
    .post-item.compact h3 { font-size: 1.8rem; }
    .theme-card { min-height: 290px; padding: 20px; }
    .theme-card h3 { font-size: 1.75rem; }
    .category-layout { grid-template-columns: 1fr; gap: 28px; padding-top: 34px; }
    .tag-sidebar { position: static; display: flex; flex-wrap: wrap; gap: 4px; }
    .sidebar-label { width: 100%; }
    .tag-btn { margin: 0; border: 1px solid var(--line); }
    .page-hero { padding-top: 25px; }
    .page-hero-title { align-items: flex-start; }
    .category-glyph.large { width: 58px; height: 58px; }
    .page-hero h1 { font-size: 2.8rem; }
    .article-header { box-shadow: 5px 5px 0 color-mix(in srgb, var(--ink) 14%, transparent); }
    .article-register, .article-reading-register { align-items: flex-start; flex-direction: column; gap: 3px; }
    .article-register span:last-child, .article-reading-register span:last-child { color: color-mix(in srgb, var(--paper) 65%, transparent); }
    .article-cover { grid-template-columns: 1fr; }
    .article-cover-main { padding: 30px 21px 36px; }
    .article-header h1 { font-size: clamp(2.7rem, 14vw, 4.4rem); }
    .article-cover-mark { min-height: 190px; border-top: 1px solid var(--ink); border-left: 0; }
    .article-cover-glyph { width: 66px; height: 66px; box-shadow: 0 0 0 12px var(--acid), 0 0 0 13px var(--ink); }
    .article-actions { align-items: flex-start; flex-direction: column; }
    .article-language-row { align-items: flex-start; flex-direction: column; }
    .translation-warning { grid-template-columns: 1fr; margin-top: 20px; }
    .article-reading-shell { margin-top: 36px; box-shadow: 5px 5px 0 color-mix(in srgb, var(--ink) 14%, transparent); }
    .article-layout, .article-layout.no-toc { padding: 18px 14px 30px; }
    .markdown-body { padding: 24px 20px 34px; font-size: .94rem; box-shadow: 4px 4px 0 color-mix(in srgb, var(--article-accent) 24%, transparent); }
    .markdown-body pre { box-shadow: 4px 4px 0 var(--article-accent); }
    .post-navigation { grid-template-columns: 1fr; }
    .post-navigation a + a { border-top: 1px solid var(--ink); border-left: 0; }
    .post-navigation a.next { text-align: left; }
}