/* D2Coding (네이버 코딩 폰트) — 코드 패널 전용. 실패 시 JetBrains Mono로 폴백 */
  @font-face{
    font-family:'D2Coding';font-style:normal;font-weight:400;font-display:swap;
    src:local('D2Coding'),
      url('https://cdn.jsdelivr.net/gh/wan2land/d2coding/fonts/d2coding-ligature-full.woff2') format('woff2'),
      url('https://cdn.jsdelivr.net/gh/wan2land/d2coding/fonts/d2coding-ligature-full.woff') format('woff');
  }


  /* ===== Design Tokens (AI-Slop 방지: 8px 그리드 / 폰트 2종 / 액센트 1색 / radius 0·4·8·12·16) ===== */
  :root{
    --bg:#0a0c10; --bg-2:#12161c; --bg-3:#1d232c; --line:#252c36;
    --fg:#e9eef5; --fg-dim:#9aa4b2; --fg-mute:#828d9c;  /* WCAG AA(4.5:1) 충족 명도로 상향 */
    --accent:#3b82f6; --accent-2:#60a5fa; --accent-soft:#3b82f61a;
    --grass-0:#161b22; --grass-1:#0e4429; --grass-2:#006d32; --grass-3:#26a641; --grass-4:#39d353;
    --mono:"JetBrains Mono","Courier New",monospace;
    --sans:"Pretendard Variable","Pretendard","Helvetica Neue","Segoe UI","Malgun Gothic",sans-serif;
    --s1:8px;--s2:16px;--s3:24px;--s4:32px;--s5:40px;--s6:48px;--s8:64px;
  }
  *{box-sizing:border-box;margin:0;padding:0}
  html,body{height:100%}
  body{
    background:var(--bg);color:var(--fg);font-family:var(--sans);overflow:hidden;
    line-height:1.6;-webkit-font-smoothing:antialiased;
  }

  /* ===== 깊이감: 뉴럴넷 캔버스 + 그리드 + 글로우 + 노이즈 ===== */
  .bg-layer{position:fixed;inset:0;z-index:0;pointer-events:none}
  #net,#three{position:absolute;inset:0;width:100%;height:100%;display:block}
  #three{display:none}            /* Three.js 성공 시 JS가 켬 */
  .bg-grid{position:absolute;inset:0;
    background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
    background-size:48px 48px;opacity:.22;
    mask-image:radial-gradient(ellipse 80% 70% at 50% 45%,#000 30%,transparent 75%);
    -webkit-mask-image:radial-gradient(ellipse 80% 70% at 50% 45%,#000 30%,transparent 75%);
  }
  .bg-glow{position:absolute;width:60vw;height:60vw;border-radius:50%;
    background:radial-gradient(circle,#3b82f61f,transparent 65%);
    top:-15vw;right:-10vw;transition:transform .3s ease-out;filter:blur(20px)}
  .bg-glow.two{background:radial-gradient(circle,#60a5fa14,transparent 65%);top:auto;right:auto;bottom:-20vw;left:-12vw}
  .bg-noise{position:absolute;inset:0;opacity:.035;mix-blend-mode:overlay;
    background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}

  /* ===== Deck ===== */
  .deck{height:100vh;width:100vw;position:relative;z-index:1}
  .slide{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:center;
    padding:var(--s8) 7vw;opacity:0;visibility:hidden;transform:translateY(20px);
    transition:opacity .5s ease,transform .5s ease,visibility .5s;overflow-y:auto}
  .slide.active{opacity:1;visibility:visible;transform:none}
  .slide.center{align-items:center;text-align:center}

  /* stagger 등장 */
  .slide .rise{opacity:0;transform:translateY(18px);transition:opacity .55s cubic-bezier(.2,.7,.2,1),transform .55s cubic-bezier(.2,.7,.2,1)}
  .slide.active .rise{opacity:1;transform:none}
  .slide.active .rise:nth-child(1){transition-delay:.05s}
  .slide.active .rise:nth-child(2){transition-delay:.13s}
  .slide.active .rise:nth-child(3){transition-delay:.21s}
  .slide.active .rise:nth-child(4){transition-delay:.29s}
  .slide.active .rise:nth-child(5){transition-delay:.37s}

  .kicker{font-family:var(--mono);font-size:13px;letter-spacing:.1em;color:var(--accent-2);
    text-transform:uppercase;margin-bottom:var(--s3);display:flex;align-items:center;gap:var(--s1)}
  .kicker::before{content:"";width:28px;height:2px;background:var(--accent)}

  h1{font-size:clamp(44px,7.5vw,92px);font-weight:800;line-height:1.02;letter-spacing:-.03em}
  h2{font-size:clamp(30px,4.6vw,52px);font-weight:800;letter-spacing:-.02em;margin-bottom:var(--s4)}
  .lead{font-size:clamp(16px,1.7vw,21px);color:var(--fg-dim);max-width:60ch}
  .lead b{color:var(--fg);font-weight:600}
  .accent{color:var(--accent-2)}

  /* 표지 */
  #s0{align-items:flex-start}
  #s0 .title-role{font-family:var(--sans);font-size:clamp(20px,2.6vw,30px);font-weight:700;color:var(--fg);
    letter-spacing:-.01em;margin-top:var(--s2)}
  #s0 .title-role .ax-full{color:var(--fg-mute);font-weight:500;font-size:.7em;margin-left:2px}
  #s0 .role{font-family:var(--sans);color:var(--fg-dim);font-size:clamp(15px,1.8vw,21px);font-weight:500;
    letter-spacing:-.01em;margin-top:var(--s4);border-left:2px solid var(--accent);padding-left:var(--s2)}
  #s0 .role b{color:var(--accent-2);font-weight:700}
  .contacts{display:flex;flex-wrap:wrap;gap:var(--s2) var(--s4);font-family:var(--sans);font-size:15px;font-weight:500;color:var(--fg-dim)}
  .contacts a,.contacts span{display:flex;align-items:center;gap:var(--s1);color:var(--fg-dim);text-decoration:none;transition:color .3s}
  .contacts a:hover{color:var(--accent-2)}
  .ico{width:16px;height:16px;stroke:var(--accent);fill:none;stroke-width:1.8;flex:0 0 auto}

  /* 정보 카드 */
  .info-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:var(--s2);margin-top:var(--s2)}
  .info-card{background:var(--bg-2);border:1px solid var(--line);border-radius:12px;padding:var(--s3);
    transition:border-color .3s,transform .3s}
  .info-card:hover{border-color:var(--accent);transform:translateY(-3px)}
  .info-card .label{font-family:var(--mono);font-size:11px;letter-spacing:.08em;color:var(--accent-2);text-transform:uppercase;
    margin-bottom:var(--s1);display:flex;align-items:center;gap:6px}
  .info-card .value{font-size:18px;font-weight:600}
  .info-card .sub{font-size:13px;color:var(--fg-dim);margin-top:4px}

  /* 경력 — 수평 카드 4칸 (중간 화면 2×2, 모바일 1열) */
  .career{display:flex;align-items:stretch;gap:var(--s2);margin-top:var(--s4)}
  .career-card{flex:1;min-width:0;background:var(--bg-2);border:1px solid var(--line);border-radius:14px;
    padding:var(--s3);display:flex;flex-direction:column;gap:var(--s2);position:relative;
    text-decoration:none;color:inherit;
    transition:border-color .3s,transform .3s,box-shadow .3s}
  .career-card:hover{border-color:var(--accent);transform:translateY(-4px);box-shadow:0 10px 28px #0007}
  .career-card:focus-visible{outline:none;box-shadow:0 0 0 2px var(--bg),0 0 0 4px var(--accent)}
  .career-card .go{position:absolute;top:var(--s3);right:var(--s3);width:14px;height:14px;
    stroke:var(--fg-mute);fill:none;stroke-width:1.8;transition:stroke .3s}
  .career-card:hover .go{stroke:var(--accent-2)}
  .career-card .logo{background:#f4f6f8;border-radius:10px;height:72px;display:flex;align-items:center;justify-content:center;padding:10px var(--s2)}
  .career-card .logo img{max-width:86%;max-height:52px;object-fit:contain}
  /* 가로로 긴 로고(ST&V)는 너비를 꽉 채워 위아래 여백 최소화 */
  .career-card .logo img.wide{max-width:100%;max-height:56px}
  .career-card .period{font-family:var(--mono);font-size:12.5px;color:var(--accent-2)}
  .career-card .org{font-size:19px;font-weight:700;line-height:1.2}
  .career-card .desc{font-size:14px;color:var(--fg-dim);margin-top:auto}
  .career-arrow{display:flex;align-items:center;color:var(--fg-mute);font-size:22px;flex:0 0 auto}
  @media(max-width:1100px){
    .career{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--s2);margin-top:var(--s2)}
    .career-arrow{display:none}
    .career-card{padding:var(--s2);gap:var(--s1)}
    .career-card .logo{height:56px}
  }
  @media(max-width:760px){.career{grid-template-columns:1fr;padding-bottom:72px}}

  /* 베스트 글 링크 카드 (블로그 슬라이드) — 높이 균일 */
  .posts{display:flex;flex-direction:column;gap:var(--s2)}
  .post{display:flex;align-items:center;gap:var(--s3);text-decoration:none;
    background:var(--bg-2);border:1px solid var(--line);border-radius:10px;padding:0 var(--s3);
    height:72px;box-sizing:border-box;
    transition:border-color .3s,transform .25s,background .3s}
  .post:hover{border-color:var(--accent);transform:translateX(4px);background:#161b22}
  .post:focus-visible{outline:none;box-shadow:0 0 0 2px var(--bg),0 0 0 4px var(--accent)}
  .post .rank{font-family:var(--mono);font-size:13px;color:var(--accent-2);flex:0 0 auto;font-weight:700}
  .post .body{flex:1;min-width:0;display:flex;flex-direction:column;justify-content:center;gap:3px}
  .post .ttl{font-size:15px;font-weight:600;color:var(--fg);
    white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .post .why{font-size:12.5px;color:var(--fg-dim);line-height:1.4;
    white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .post .tag{font-family:var(--mono);font-size:10px;letter-spacing:.04em;color:var(--fg-mute);text-transform:uppercase}
  .post .go{flex:0 0 auto;width:15px;height:15px;stroke:var(--fg-mute);fill:none;stroke-width:1.8;transition:stroke .3s}
  .post:hover .go{stroke:var(--accent-2)}

  /* 칩 */
  .chips{display:flex;flex-wrap:wrap;gap:var(--s1);margin-top:var(--s4)}
  .chip{font-family:var(--mono);font-size:13px;background:var(--accent-soft);border:1px solid #3b82f640;color:var(--accent-2);
    padding:6px 14px;border-radius:8px;transition:background .3s,transform .2s}
  .chip:hover{background:#3b82f626;transform:translateY(-2px)}

  /* 링크 버튼 (외부 GitHub/블로그 이동) */
  .linkbtn{display:inline-flex;align-items:center;gap:var(--s1);margin-top:var(--s4);
    font-family:var(--mono);font-size:14px;color:var(--accent-2);text-decoration:none;
    background:var(--accent-soft);border:1px solid #3b82f659;border-radius:8px;padding:10px 18px;
    transition:background .3s,border-color .3s,transform .2s}
  .linkbtn:hover{background:#3b82f626;border-color:var(--accent);transform:translateY(-2px)}
  .linkbtn:focus-visible{outline:none;box-shadow:0 0 0 2px var(--bg),0 0 0 4px var(--accent)}
  .linkbtn .url{color:var(--fg-mute);font-size:12px;border-left:1px solid #3b82f659;padding-left:var(--s1);margin-left:2px}
  .linkbtn svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:1.8}
  @media(max-width:760px){.linkbtn .url{display:none}}

  /* 랜드마크 빌딩 로고 카드 (담당 현장) */
  .sites-label{font-family:var(--mono);font-size:12px;letter-spacing:.06em;color:var(--fg-mute);
    text-transform:uppercase;margin-top:var(--s5);margin-bottom:var(--s2)}
  .sites{display:grid;grid-template-columns:repeat(6,1fr);gap:var(--s2)}
  @media(max-width:1100px){.sites{grid-template-columns:repeat(3,1fr)}}
  @media(max-width:560px){.sites{grid-template-columns:repeat(2,1fr)}}
  .site{background:#f4f6f8;border:1px solid var(--line);border-radius:12px;position:relative;
    height:96px;display:flex;align-items:center;justify-content:center;padding:var(--s2);
    transition:border-color .3s,transform .3s,box-shadow .3s}
  .site:hover{border-color:var(--accent);transform:translateY(-4px);box-shadow:0 8px 24px #0006}
  .site:focus-visible{outline:none;box-shadow:0 0 0 2px var(--bg),0 0 0 4px var(--accent)}
  .site img{max-width:84%;max-height:48px;object-fit:contain}
  .site .go{position:absolute;top:8px;right:8px;width:13px;height:13px;stroke:#9aa4b2;fill:none;stroke-width:1.8;
    opacity:0;transition:opacity .3s,stroke .3s}
  .site:hover .go{opacity:1;stroke:var(--accent)}
  /* 로고 없는 빌딩: 세리프 텍스트 */
  .site .tp{display:flex;flex-direction:column;align-items:center;color:#1a2230;font-family:Georgia,"Times New Roman",serif;text-align:center}
  .site .tp .nm{font-size:14px;font-weight:600;letter-spacing:.02em;line-height:1.2}
  .site .tp .en{font-family:var(--mono);font-size:10px;letter-spacing:.06em;color:#7a8290;margin-top:4px}

  /* 2-컬럼 split */
  .split{display:grid;grid-template-columns:1.1fr 1fr;gap:var(--s8);align-items:center}
  @media(max-width:900px){.split{grid-template-columns:1fr;gap:var(--s5)}}

  /* 거대 숫자 + 코드 패널 */
  .bignum{font-family:var(--mono);font-size:clamp(72px,13vw,160px);font-weight:800;line-height:.85;
    background:linear-gradient(135deg,var(--accent-2),var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent;
    margin-bottom:var(--s3)}
  /* 거대 숫자 옆 버전 배지 (107 → 50 압축 표기) */
  .bignum-row{display:flex;align-items:flex-end;gap:var(--s2);flex-wrap:wrap;margin-bottom:var(--s3)}
  .bignum-row .bignum{margin-bottom:0}
  .vbadge{display:inline-flex;align-items:center;gap:7px;margin-bottom:10px;padding:4px 11px;
    font-family:var(--mono);font-size:11px;letter-spacing:.04em;white-space:nowrap;
    color:var(--accent-2);background:var(--accent-soft);border:1px solid #3b82f640;border-radius:999px}
  .vbadge i{font-style:normal;color:var(--fg-dim)}
  .project-heading{display:flex;align-items:center;flex-wrap:wrap;gap:var(--s1) var(--s2);margin-bottom:var(--s2)}
  .project-heading h2,.project-heading .vbadge{margin-bottom:0}
  .codepanel{background:var(--bg-2);border:1px solid var(--line);border-radius:12px;overflow:hidden;font-family:'D2Coding',var(--mono);font-size:14px}
  .codepanel .bar{display:flex;align-items:center;gap:6px;padding:10px 14px;background:var(--bg-3);border-bottom:1px solid var(--line)}
  .codepanel .dot{width:11px;height:11px;border-radius:50%}
  .codepanel .fname{margin-left:8px;color:var(--fg-dim);font-size:12px}
  .codepanel pre{font-family:'D2Coding',var(--mono);padding:var(--s3);overflow-x:auto;line-height:1.7;color:var(--fg-dim)}
  .codepanel .k{color:#ff7b72}.codepanel .s{color:#a5d6ff}.codepanel .c{color:var(--fg-mute)}.codepanel .f{color:#d2a8ff}.codepanel .n{color:#79c0ff}
  /* 더보기 토글 */
  .codepanel .more-btn{color:var(--accent-2);cursor:pointer;user-select:none;transition:color .2s}
  .codepanel .more-btn:hover{color:#fff;text-decoration:underline}
  .codepanel .more-lines{display:none}
  .codepanel.open .more-lines{display:inline}
  .codepanel.open .more-btn .more-label::after{content:' ▴'}
  .codepanel .more-btn .more-label::after{content:' ▾'}
  /* 커맨드 목록 그리드 정렬 (# 세로선 자동 맞춤) */
  .cmds{padding:var(--s3);font-family:'D2Coding',var(--mono);font-size:14px;line-height:1.7;overflow-x:auto}
  .cmds .head{color:var(--fg-mute);margin-bottom:6px}
  .cmd-row{display:grid;grid-template-columns:165px 1fr;gap:var(--s2)}
  .cmd-row .f{color:#d2a8ff}
  .cmd-row .c{color:var(--fg-mute)}
  .cmd-row.clickable .f{cursor:pointer;border-radius:4px;transition:color .2s,background .2s;padding:0 2px;margin:0 -2px}
  .cmd-row.clickable:hover .f{color:#fff;background:#d2a8ff22}
  .cmd-row.clickable .f::after{content:' ↗';font-size:10px;color:var(--fg-mute);opacity:0;transition:opacity .2s}
  .cmd-row.clickable:hover .f::after{opacity:1}
  .cmds .more-lines{display:none}
  .codepanel.open .cmds .more-lines{display:contents}
  .cmds .more-btn{display:inline-block;margin-top:6px;color:var(--accent-2);cursor:pointer;user-select:none;transition:color .2s}
  .cmds .more-btn:hover{color:#fff;text-decoration:underline}

  /* 하네스 50 화살표 클릭 가능 표시 */
  .arrow.a2{cursor:pointer}
  .arrow.a2 .peek{font-family:var(--mono);font-weight:400;font-size:11px;opacity:.7;margin-left:var(--s1)}
  .arrow.a2:hover{filter:brightness(1.12)}

  /* 50단계 모달 */
  .modal{position:fixed;inset:0;z-index:30;display:none;align-items:center;justify-content:center;padding:var(--s4)}
  .modal.open{display:flex}
  .modal-bg{position:absolute;inset:0;background:#06080cd0;backdrop-filter:blur(4px)}
  .modal-box{position:relative;width:min(720px,92vw);max-height:84vh;background:var(--bg-2);border:1px solid var(--line);
    border-radius:16px;display:flex;flex-direction:column;box-shadow:0 24px 64px #000a;
    transform:translateY(16px) scale(.98);opacity:0;transition:transform .35s cubic-bezier(.2,.7,.2,1),opacity .35s}
  .modal.open .modal-box{transform:none;opacity:1}
  .modal-head{display:flex;align-items:center;justify-content:space-between;padding:var(--s3) var(--s4);border-bottom:1px solid var(--line)}
  .modal-head h3{font-size:20px;font-weight:800;letter-spacing:-.01em}
  .modal-head .cnt{font-family:var(--mono);font-size:12px;color:var(--accent-2);margin-left:var(--s1)}
  .modal-close{width:36px;height:36px;border-radius:50%;border:1px solid var(--line);background:var(--bg-3);color:var(--fg);
    font-size:18px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .3s,border-color .3s}
  .modal-close:hover{background:var(--bg);border-color:var(--accent)}
  .modal-close:focus-visible{outline:none;box-shadow:0 0 0 2px var(--bg),0 0 0 4px var(--accent)}
  .modal-list{overflow-y:auto;padding:var(--s2) var(--s4) var(--s4)}
  .step-item{border-bottom:1px solid #1d232c80}
  .step-item:last-child{border-bottom:none}
  .step-row{display:flex;align-items:baseline;gap:var(--s2);padding:9px 0;cursor:pointer;user-select:none}
  .step-row .no{font-family:var(--mono);font-size:12px;color:var(--accent-2);flex:0 0 42px;text-align:right;font-weight:700}
  .step-row .ti{flex:1;font-size:14.5px;color:var(--fg-dim);transition:color .2s}
  .step-row .caret{color:var(--fg-mute);font-size:11px;transition:transform .25s,color .2s;flex:0 0 auto}
  .step-row:hover .ti{color:var(--fg)}
  .step-row:hover .caret{color:var(--accent-2)}
  .step-item.open .step-row .ti{color:var(--accent-2);font-weight:600}
  .step-item.open .step-row .caret{transform:rotate(90deg);color:var(--accent-2)}
  .step-item.open .step-row{position:sticky;top:0;background:var(--bg-2);z-index:1}
  .step-body{display:none;font-size:13px;line-height:1.65;color:var(--fg-dim);
    word-break:break-word;background:var(--bg);border:1px solid var(--line);border-radius:8px;
    padding:var(--s2) var(--s3);margin:0 0 var(--s2) 42px;max-height:46vh;overflow-y:auto}
  .step-item.open .step-body{display:block}
  .step-raw{font-family:var(--mono);font-size:12.5px;white-space:pre-wrap}
  /* 마크다운 렌더 스타일 (다크) */
  .md{font-size:13px}
  .md h1,.md h2,.md h3{color:var(--fg);font-weight:700;line-height:1.3;margin:var(--s3) 0 var(--s1)}
  .md h1{font-size:18px}.md h2{font-size:16px}.md h3{font-size:14px;color:var(--accent-2)}
  .md h1:first-child,.md h2:first-child,.md h3:first-child{margin-top:0}
  .md p{margin:var(--s1) 0}
  .md strong{color:var(--fg);font-weight:700}
  .md a{color:var(--accent-2)}
  .md ul,.md ol{margin:var(--s1) 0;padding-left:var(--s3)}
  .md li{margin:3px 0}
  .md code{font-family:'D2Coding',var(--mono);font-size:12px;background:var(--bg-3);padding:2px 6px;border-radius:4px;color:#79c0ff}
  .md pre{background:var(--bg-2);border:1px solid var(--line);border-radius:8px;padding:var(--s2);overflow-x:auto;margin:var(--s2) 0}
  .md pre code{background:none;padding:0;color:var(--fg-dim);font-size:11.5px;line-height:1.6}
  .md blockquote{border-left:3px solid var(--accent);margin:var(--s2) 0;padding:4px 0 4px var(--s2);color:var(--fg-dim);background:#3b82f60d}
  .md table{border-collapse:collapse;width:100%;margin:var(--s2) 0;font-size:12px}
  .md th,.md td{border:1px solid var(--line);padding:6px 10px;text-align:left}
  .md th{background:var(--bg-3);color:var(--fg);font-weight:600}
  .md hr{border:none;border-top:1px solid var(--line);margin:var(--s2) 0}

  /* step 상세 모달 (목록 위 2단계) */
  .detail{z-index:40}
  .detail .modal-box{width:min(820px,94vw);max-height:88vh}
  .detail .modal-head{gap:var(--s2)}
  .detail .nav-btns{display:flex;align-items:center;gap:var(--s1)}
  .detail .nav-btns button{width:34px;height:34px;border-radius:50%;border:1px solid var(--line);background:var(--bg-3);
    color:var(--fg);font-size:16px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .3s,border-color .3s}
  .detail .nav-btns button:hover:not(:disabled){background:var(--bg);border-color:var(--accent)}
  .detail .nav-btns button:disabled{opacity:.3;cursor:default}
  .detail .nav-btns button:focus-visible{outline:none;box-shadow:0 0 0 2px var(--bg),0 0 0 4px var(--accent)}
  .detail .d-no{font-family:var(--mono);font-size:12px;color:var(--accent-2);font-weight:700}
  .detail .d-title{font-size:18px;font-weight:800;letter-spacing:-.01em;flex:1;min-width:0}
  .detail .d-body{overflow-y:auto;padding:var(--s3) var(--s4) var(--s4)}
  .detail .d-hint{font-family:var(--mono);font-size:11px;color:var(--fg-mute);text-align:center;padding:0 0 var(--s2)}

  /* 하네스 플로우 — 한국어 3단계 화살표 (단일 프롬프트 → 50단계 → 산출물) */
  .flow{display:flex;flex-direction:column;gap:var(--s3);margin-top:var(--s2)}
  .arrow{position:relative;height:56px;display:flex;align-items:center;color:#fff;font-weight:700;
    font-size:clamp(14px,1.5vw,18px);padding-left:var(--s3);
    clip-path:polygon(0 0, calc(100% - 28px) 0, 100% 50%, calc(100% - 28px) 100%, 0 100%);
    opacity:0;transform:translateX(-24px);transition:opacity .6s ease,transform .6s cubic-bezier(.2,.7,.2,1)}
  .slide.active .arrow{opacity:1;transform:none}
  .slide.active .arrow:nth-child(1){transition-delay:.15s}
  .slide.active .arrow:nth-child(2){transition-delay:.35s}
  .slide.active .arrow:nth-child(3){transition-delay:.55s}
  .arrow.a1{width:74%;background:linear-gradient(90deg,#2d3a8c,#3949ab)}
  .arrow.a2{width:88%;background:linear-gradient(90deg,#3949ab,#5c4bbf)}
  .arrow.a3{width:100%;background:linear-gradient(90deg,#5c4bbf,#7b5fd4)}
  .arrow .sub{font-family:var(--mono);font-weight:400;font-size:12px;opacity:.78;margin-left:var(--s2)}
  @media(max-width:760px){.arrow .sub{display:none}.arrow{font-size:14px}}

  /* GitHub 메트릭 */
  .metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--s2);margin:var(--s3) 0}
  @media(max-width:760px){.metrics{grid-template-columns:1fr}}
  .metric{background:var(--bg-2);border:1px solid var(--line);border-radius:12px;padding:var(--s4) var(--s3);
    transition:border-color .3s,transform .3s}
  .metric:hover{border-color:var(--accent);transform:translateY(-3px)}
  .metric .num{font-family:var(--mono);font-size:clamp(38px,5vw,58px);font-weight:800;color:var(--accent-2);line-height:1}
  .metric .cap{font-size:14px;color:var(--fg-dim);margin-top:var(--s1)}
  .metric .sfx{color:var(--fg-mute);font-size:.5em}

  /* GitHub 잔디 */
  .grass-wrap{margin-top:var(--s3)}
  .grass-head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:var(--s2);font-family:var(--mono);font-size:12px;color:var(--fg-dim)}
  .grass{display:grid;grid-auto-flow:column;grid-template-rows:repeat(7,1fr);gap:3px}
  .cell{width:100%;aspect-ratio:1;border-radius:3px;background:var(--grass-0);transform:scale(0);transition:transform .35s cubic-bezier(.2,.8,.3,1.4)}
  .slide.active .cell{transform:scale(1)}
  .legend{display:flex;align-items:center;gap:6px;font-family:var(--mono);font-size:11px;color:var(--fg-mute);margin-top:var(--s2);justify-content:flex-end}
  .legend i{width:11px;height:11px;border-radius:3px;display:inline-block}

  /* 언어 막대 */
  .langs{margin-top:var(--s2);display:flex;flex-direction:column;gap:var(--s2)}
  .lang-row{display:grid;grid-template-columns:90px 1fr 40px;align-items:center;gap:var(--s2);font-family:var(--mono);font-size:13px}
  .lang-row .nm{color:var(--fg-dim)}
  .lang-row .ct{color:var(--fg-mute);text-align:right}
  .bar{height:8px;background:var(--bg-3);border-radius:4px;overflow:hidden}
  .bar i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--accent),var(--accent-2));border-radius:4px;transition:width 1s cubic-bezier(.2,.7,.2,1)}

  /* 네비/진행/점 */
  .nav{position:fixed;bottom:var(--s3);right:var(--s5);display:flex;align-items:center;gap:var(--s2);z-index:10}
  .nav button{width:44px;height:44px;border-radius:50%;border:1px solid var(--line);background:var(--bg-2);color:var(--fg);
    font-size:18px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .3s,border-color .3s,transform .15s}
  .nav button:hover{background:var(--bg-3);border-color:var(--accent)}
  .nav button:focus-visible{outline:none;box-shadow:0 0 0 2px var(--bg),0 0 0 4px var(--accent)}
  .nav button:active{transform:scale(.92)}
  .nav .counter{font-family:var(--mono);font-size:14px;color:var(--fg-dim);min-width:54px;text-align:center}
  .progress{position:fixed;top:0;left:0;height:3px;background:linear-gradient(90deg,var(--accent),var(--accent-2));width:0;z-index:11;transition:width .5s ease}
  .dots{position:fixed;left:var(--s4);top:50%;transform:translateY(-50%);display:flex;flex-direction:column;gap:var(--s1);z-index:10}
  .dots button{width:10px;height:10px;border-radius:50%;border:none;background:var(--line);cursor:pointer;padding:0;transition:background .3s,height .3s}
  .dots button.on{background:var(--accent);height:26px;border-radius:5px}
  .hint{position:fixed;bottom:var(--s3);left:var(--s5);font-family:var(--mono);font-size:12px;color:var(--fg-mute);z-index:10}
  .hint .mobile-only{display:none}

  /* 공통 포커스 표시 (키보드 접근성) */
  .dots button:focus-visible,.chip:focus-visible{outline:none;box-shadow:0 0 0 2px var(--bg),0 0 0 4px var(--accent)}
  .contacts a:focus-visible{outline:2px solid var(--accent-2);outline-offset:3px;border-radius:4px}

  @media(max-width:760px){
    .dots{display:none}
    .slide{padding:var(--s6) var(--s4);justify-content:flex-start;padding-top:18vh}
    .hint .desktop-only{display:none}.hint .mobile-only{display:inline}
    #s6 .split{grid-template-columns:1fr!important;gap:var(--s4)!important}
    .grass-wrap{overflow-x:auto}
    .grass{min-width:480px}
  }
  @media(prefers-reduced-motion:reduce){
    .slide,.rise,.cell,.bar i,.info-card,.metric,.chip{transition:none!important}
    .rise{opacity:1!important;transform:none!important}
    .cell{transform:scale(1)!important}
  }

  /* ===== CV 요약 슬라이드 (표지 다음, 한 장에 전모 — 내부 스크롤) ===== */
  #scv{justify-content:center;padding-top:var(--s5);padding-bottom:var(--s5)}
  .cv{width:100%;max-width:1080px;margin:0 auto;display:flex;flex-direction:column;gap:var(--s3)}
  .cv>*{margin:0!important}
  .cv-head{display:flex;align-items:baseline;gap:var(--s2);flex-wrap:wrap}
  .cv-head h2{font-size:clamp(26px,3.6vw,38px);font-weight:800;letter-spacing:-.02em}
  .cv-head .role{font-family:var(--mono);font-size:13px;color:var(--accent-2)}
  .cv-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--s2)}
  @media(max-width:760px){.cv-stats{grid-template-columns:repeat(2,1fr)}}
  .cv-stat{background:var(--bg-2);border:1px solid var(--line);border-radius:10px;padding:var(--s1) var(--s2);text-align:center}
  .cv-stat .n{font-family:var(--mono);font-size:clamp(20px,2.6vw,24px);font-weight:800;color:var(--accent-2);line-height:1}
  .cv-stat .n .u{font-family:var(--sans);font-weight:700;font-size:.72em;margin-left:1px}
  .cv-stat .l{font-size:11.5px;color:var(--fg-dim);margin-top:4px}
  /* CV 하단 2열 비대칭 (좌:Career+Projects | 우:부트캠프 3카드) */
  .cv-lower{display:grid;grid-template-columns:1.05fr 1fr;gap:var(--s3);align-items:start}
  @media(max-width:760px){.cv-lower{grid-template-columns:1fr}}
  .cv-lower .cv-block + .cv-block{margin-top:var(--s3)}
  .cv-block .bt{font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--accent-2);margin-bottom:var(--s2);display:flex;align-items:center;gap:var(--s1)}
  .cv-block .bt::after{content:"";flex:1;height:1px;background:var(--line)}
  .cv-about{font-size:13px;color:var(--fg-dim);line-height:1.5;flex:1 1 360px}
  .cv-about b{color:var(--fg);font-weight:600}.cv-about .hl{color:var(--accent-2);font-weight:600}
  /* CV 기본사항 행 */
  .cv-info{display:grid;grid-template-columns:repeat(5,1fr);gap:var(--s2)}
  @media(max-width:760px){.cv-info{grid-template-columns:repeat(2,1fr)}}
  .cv-info .it{background:var(--bg-2);border:1px solid var(--line);border-radius:9px;padding:8px 12px}
  .cv-info .k{font-family:var(--mono);font-size:10px;letter-spacing:.06em;text-transform:uppercase;color:var(--accent-2)}
  .cv-info .v{font-size:13.5px;font-weight:600;margin-top:3px}
  .cv-info .s{font-size:11px;color:var(--fg-mute);margin-top:1px}
  .cv-line{display:flex;gap:var(--s2);padding:6px 0;font-size:13.5px;border-bottom:1px solid #1d232c66}
  .cv-line:last-child{border-bottom:none}
  .cv-line .w{font-family:var(--mono);font-size:11.5px;color:var(--accent-2);flex:0 0 132px;white-space:nowrap}
  .cv-line .org{flex:0 0 118px;color:var(--fg);font-weight:600}
  .cv-line .d{color:var(--fg-dim)}.cv-line .d b{color:var(--fg);font-weight:600}
  @media(max-width:760px){.cv-line .org{flex:0 0 96px}}
  .cv-line a{color:var(--fg-dim);text-decoration:none;border-bottom:1px dashed var(--line)}
  .cv-line a:hover{color:var(--accent-2);border-color:var(--accent-2)}
  .cv-line{align-items:center}
  .cv-line .lg{flex:0 0 auto;width:46px;height:26px;background:#f4f6f8;border:1px solid var(--line);border-radius:6px;
    display:flex;align-items:center;justify-content:center;padding:3px;
    transition:border-color .25s,transform .2s,box-shadow .25s}
  a.lg:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:0 4px 12px #0006}
  .cv-line .lg img{max-width:100%;max-height:18px;object-fit:contain}
  .cv-chips{display:flex;flex-wrap:wrap;gap:6px;margin-top:var(--s2)}
  .cv-chips a{font-family:var(--mono);font-size:11.5px;background:var(--accent-soft);border:1px solid #3b82f640;color:var(--accent-2);padding:4px 10px;border-radius:7px;text-decoration:none;transition:background .25s,transform .2s}
  .cv-chips a:hover{background:#3b82f626;transform:translateY(-2px)}
  /* CV 빌딩 로고 칩 (흰 카드) */
  .cv-logos{display:flex;flex-wrap:nowrap;gap:5px;margin-top:var(--s1)}
  .cv-logos a{flex:1;min-width:0;background:#f4f6f8;border:1px solid var(--line);border-radius:8px;height:30px;
    display:flex;align-items:center;justify-content:center;padding:5px 8px;
    transition:border-color .25s,transform .2s,box-shadow .25s}
  .cv-logos a:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:0 4px 12px #0006}
  .cv-logos img{max-width:100%;max-height:20px;object-fit:contain}
  .cv-proj a{display:flex;align-items:center;gap:var(--s2);padding:6px 0;font-size:13.5px;color:var(--fg);
    text-decoration:none;border-bottom:1px solid #1d232c66}
  .cv-proj a:last-child{border-bottom:none}
  .cv-proj a:hover .pn{color:var(--accent-2)}
  .cv-proj .gh{flex:0 0 auto;width:15px;height:15px;stroke:var(--accent-2);fill:none;stroke-width:1.8}
  .cv-proj .pn{font-weight:600;flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;transition:color .25s}
  /* 우측 메타+↗ 부분만 박스 버튼 */
  .cv-proj .pr{flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;gap:7px;
    width:148px;white-space:nowrap;font-family:var(--mono);font-size:11px;color:var(--fg-mute);
    background:var(--bg-2);border:1px solid var(--line);border-radius:7px;padding:5px 10px;
    transition:border-color .25s,color .25s,background .25s}
  .cv-proj a:hover .pr{border-color:var(--accent);color:var(--accent-2);background:#161b22}
  .cv-proj .go{flex:0 0 auto;width:12px;height:12px;stroke:currentColor;fill:none;stroke-width:1.8}
  /* 부트캠프 실증 프로젝트 (CV 우측 컬럼 · 세로 3카드) */
  .cv-bcp-head{display:flex;align-items:center;gap:var(--s2);margin-top:0;padding-top:0;border-top:none}
  .cv-bcp-head .bt{margin:0}
  .cv-bcp-head .tag{font-family:var(--mono);font-size:10.5px;color:var(--accent-2);background:var(--accent-soft);border:1px solid #3b82f640;border-radius:6px;padding:2px 8px}
  .cv-bcp{display:grid;grid-template-columns:1fr;gap:var(--s2);margin-top:var(--s2)}
  .cv-bcp .row{display:flex;flex-direction:column;gap:6px;background:var(--bg-2);border:1px solid var(--line);
    border-radius:12px;padding:var(--s2);transition:border-color .25s,transform .2s,box-shadow .25s}
  .cv-bcp .row:hover{border-color:var(--accent);transform:translateY(-3px);box-shadow:0 8px 22px #0007}
  .cv-bcp .pn{font-weight:700;font-size:13.5px;color:var(--fg);line-height:1.25}
  .cv-bcp .pd{font-size:11.5px;color:var(--fg-dim);line-height:1.4;flex:1;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
  .cv-bcp .lk{display:flex;gap:6px;margin-top:4px}
  .cv-bcp .lk a{display:inline-flex;align-items:center;gap:5px;font-family:var(--mono);font-size:10.5px;
    color:var(--fg-mute);background:var(--bg);border:1px solid var(--line);border-radius:7px;padding:5px 10px;
    text-decoration:none;transition:border-color .25s,color .25s,background .25s}
  .cv-bcp .lk a:hover{border-color:var(--accent);color:var(--accent-2);background:#161b22}
  .cv-bcp .lk svg{width:11px;height:11px;stroke:currentColor;fill:none;stroke-width:1.8}
  /* 독립 Bootcamp Projects 슬라이드 (스크린샷 카드 3개) */
  .bcp-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--s4);margin-top:var(--s4)}
  @media(max-width:860px){.bcp-grid{grid-template-columns:1fr}}
  .bcp-card{display:flex;flex-direction:column;background:var(--bg-2);border:1px solid var(--line);
    border-radius:16px;overflow:hidden;transition:border-color .25s,transform .2s,box-shadow .25s}
  .bcp-card:hover{border-color:var(--accent);transform:translateY(-5px);box-shadow:0 14px 36px #0008}
  .bcp-card .thumb{aspect-ratio:16/10;background:#0c1015;border-bottom:1px solid var(--line);overflow:hidden}
  .bcp-card .thumb img{width:100%;height:100%;object-fit:cover;object-position:top center;display:block;transition:transform .4s ease}
  .bcp-card:hover .thumb img{transform:scale(1.04)}
  .bcp-card .body{display:flex;flex-direction:column;gap:8px;padding:var(--s3);flex:1}
  .bcp-card .pt{font-size:16px;font-weight:700;line-height:1.25}
  .bcp-card .pd{font-size:13px;color:var(--fg-dim);line-height:1.45;flex:1}
  .bcp-card .stk{display:flex;flex-wrap:wrap;gap:5px}
  .bcp-card .stk span{font-family:var(--mono);font-size:10.5px;color:var(--accent-2);background:var(--accent-soft);
    border:1px solid #3b82f640;border-radius:6px;padding:2px 8px}
  .bcp-card .lks{display:flex;gap:8px;margin-top:2px}
  .bcp-card .lks a{display:inline-flex;align-items:center;gap:6px;font-family:var(--mono);font-size:11.5px;
    color:var(--fg-mute);background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:7px 12px;
    text-decoration:none;transition:border-color .25s,color .25s,background .25s}
  .bcp-card .lks a:hover{border-color:var(--accent);color:var(--accent-2);background:#161b22}
  .bcp-card .lks svg{width:13px;height:13px;stroke:currentColor;fill:none;stroke-width:1.8}
  /* 하네스50 산출 튜토리얼 (5열 컴팩트 카드) */
  .tut-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:var(--s2);margin-top:var(--s4)}
  @media(max-width:1100px){.tut-grid{grid-template-columns:repeat(3,1fr)}}
  @media(max-width:680px){.tut-grid{grid-template-columns:1fr}}
  .tut-card{display:flex;flex-direction:column;background:var(--bg-2);border:1px solid var(--line);
    border-radius:12px;overflow:hidden;text-decoration:none;color:var(--fg);
    transition:border-color .25s,transform .2s,box-shadow .25s}
  .tut-card:hover{border-color:var(--accent);transform:translateY(-4px);box-shadow:0 10px 28px #0008}
  .tut-card .thumb{aspect-ratio:16/10;background:#0c1015;border-bottom:1px solid var(--line);overflow:hidden}
  .tut-card .thumb img{width:100%;height:100%;object-fit:cover;object-position:top center;display:block;transition:transform .4s ease}
  .tut-card:hover .thumb img{transform:scale(1.05)}
  .tut-card .tb{display:flex;flex-direction:column;gap:5px;padding:var(--s2);flex:1}
  .tut-card .rank{font-family:var(--mono);font-size:10px;letter-spacing:.08em;color:var(--accent-2)}
  .tut-card .tt{font-size:13.5px;font-weight:700;line-height:1.25}
  .tut-card .td{font-size:11px;color:var(--fg-dim);line-height:1.4;flex:1;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
  .tut-card .go{align-self:flex-start;width:13px;height:13px;stroke:var(--accent-2);fill:none;stroke-width:1.8;margin-top:2px;transition:transform .2s}
  .tut-card:hover .go{transform:translate(2px,-2px)}
  .cv-cta{display:inline-flex;align-items:center;gap:8px;margin-top:var(--s3);font-size:13px;color:var(--accent-2);text-decoration:none;background:var(--accent-soft);border:1px solid #3b82f659;border-radius:8px;padding:9px 16px;transition:background .25s,transform .2s}
  .cv-cta:hover{background:#3b82f626;transform:translateY(-2px)}
  .cv-cta svg{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:1.8}

  /* 인쇄/PDF: 9개 슬라이드를 9페이지로 순차 출력 */
  @media print{
    body{overflow:visible!important;background:#fff;color:#111}
    .bg-layer,.nav,.dots,.hint,.progress{display:none!important}
    .deck{position:static;height:auto}
    .slide{position:relative!important;inset:auto!important;visibility:visible!important;opacity:1!important;
      transform:none!important;page-break-after:always;break-after:page;min-height:90vh;padding:6vh 6vw}
    .slide .rise{opacity:1!important;transform:none!important}
    .accent,.bignum,.metric .num,.tl-item .period,.info-card .label,.kicker{color:#1d4ed8!important;-webkit-text-fill-color:#1d4ed8!important}
    .lead,.lead b,h1,h2,.info-card .value,.tl-item .org{color:#111!important}
    .info-card,.metric,.codepanel,.flow-node{border-color:#ccc!important;background:#f6f8fa!important}
  }

  /* Readable deck: reserve the fixed controls and never center overflowing content above its scroll origin. */
  :root{--header-height:76px;--footer-height:80px;color-scheme:dark}
  .deck{width:100%;height:100vh;height:100dvh}
  .slide,#scv{
    justify-content:safe center;overflow-x:hidden;overscroll-behavior-y:contain;
    padding:calc(var(--header-height) + 28px) clamp(24px,7vw,112px) calc(var(--footer-height) + 28px);
    scroll-padding-block:calc(var(--header-height) + 24px) calc(var(--footer-height) + 24px);
    touch-action:pan-y;
  }
  .slide>*{flex-shrink:0;min-width:0}
  .split{grid-template-columns:minmax(0,1.1fr) minmax(0,1fr)}
  .split>*,.cv-lower>*,.posts,.post,.cv-block,.codepanel{min-width:0}
  .bg-layer{opacity:.42}
  .bg-grid{opacity:.12}
  .bg-glow{opacity:.5}
  .slide.active:not(#s0){background:linear-gradient(90deg,#0a0c10bd,#0a0c1066)}
  a,button,select,[role="button"]{-webkit-tap-highlight-color:#60a5fa40}
  a:focus-visible,button:focus-visible,select:focus-visible,[role="button"]:focus-visible{
    outline:2px solid var(--accent-2);outline-offset:4px;
  }
  .sr-only{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}
  .skip-link{position:fixed;z-index:60;top:8px;left:16px;padding:12px 18px;background:var(--fg);color:var(--bg);border-radius:8px;transform:translateY(-160%)}
  .skip-link:focus{transform:none}
  .site-header{
    position:fixed;inset:0 0 auto;z-index:12;min-height:var(--header-height);
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:12px clamp(24px,4vw,64px);border-bottom:1px solid var(--line);
    background:#0a0c10f2;backdrop-filter:blur(12px);
  }
  .site-header a{display:inline-flex;align-items:center;min-height:44px;color:var(--fg);text-decoration:none;font-size:14px;white-space:nowrap}
  .site-header .brand{font-weight:700;letter-spacing:-.02em;gap:8px}
  .site-header .brand span{font-size:12px;color:var(--fg-dim);font-weight:500}
  .site-header a:hover{color:var(--accent-2)}
  .section-nav{display:flex;align-items:center;gap:12px;margin-left:auto;min-width:0}
  .section-nav label{font-size:12px;color:var(--fg-dim);white-space:nowrap}
  #section-select{min-height:44px;width:208px;max-width:100%;padding:8px 30px 8px 12px;border:1px solid var(--line);border-radius:8px;background:var(--bg-2);color:var(--fg);font:inherit;font-size:13px}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
  .action-link{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:10px 18px;border:1px solid #3b82f659;border-radius:8px;background:var(--bg-2);color:var(--accent-2);font-size:14px;font-weight:600;text-decoration:none}
  .action-link.primary{background:#2563eb;color:#fff;border-color:#2563eb}
  .action-link:hover{border-color:var(--accent-2);background:#1d293b}
  .action-link.primary:hover{background:#1d4ed8}
  .case-intro{max-width:820px;color:var(--fg-dim);font-size:clamp(16px,1.7vw,21px);line-height:1.7}
  .case-meta{display:flex;flex-wrap:wrap;gap:8px 20px;font-size:13px;color:var(--accent-2);margin-block:20px 28px}
  .case-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-block:28px}
  .case-card{padding:24px;border:1px solid var(--line);border-radius:12px;background:var(--bg-2);min-width:0}
  .case-step{display:block;margin-bottom:12px;color:var(--accent-2);font-family:var(--mono);font-size:12px}
  .case-card h3{margin-bottom:12px;font-size:18px;line-height:1.4}
  .case-card p,.case-card li{font-size:15px;color:var(--fg-dim);line-height:1.75}
  .case-card ul{padding-left:20px}
  .case-outcome{padding:16px 20px;border-left:3px solid var(--accent);background:#12161c;color:var(--fg-dim);font-size:14px;line-height:1.7}
  .snapshot-note{font-size:12px;color:var(--fg-mute);line-height:1.6;margin-top:16px}
  .contacts a{min-height:44px;overflow-wrap:anywhere}
  .linkbtn,.cv-cta{min-height:44px;max-width:100%;flex-wrap:wrap}
  .cv-info{grid-template-columns:repeat(5,minmax(0,1fr))}
  .cv-stats{grid-template-columns:repeat(4,minmax(0,1fr))}
  .cv-info .v,.cv-info .s{overflow-wrap:anywhere}
  .cv-lower{grid-template-columns:minmax(0,1.05fr) minmax(0,1fr)}
  .cv-line{display:grid;grid-template-columns:126px 46px minmax(0,1fr);gap:3px 12px;padding:12px 0}
  .cv-line .w{grid-column:1;grid-row:1/3;white-space:normal;min-width:0}
  .cv-line .lg{grid-column:2;grid-row:1/3;width:46px;height:44px}
  .cv-line .org{grid-column:3;min-width:0}
  .cv-line .d{grid-column:3;font-size:12px}
  .cv-proj a{min-height:44px;flex-wrap:wrap;gap:8px}
  .cv-proj .pn{white-space:normal;overflow:visible;text-overflow:clip;min-width:130px}
  .cv-proj .pr{width:auto;min-height:32px;font-size:10px}
  .cv-logos{flex-wrap:wrap;gap:8px}
  .cv-logos a{flex:1 1 72px;min-height:44px}
  .cv-chips a,.cv-bcp .lk a,.bcp-card .lks a{display:inline-flex;align-items:center;min-height:44px}
  .cv-bcp .lk,.bcp-card .lks{flex-wrap:wrap}
  .cv-bcp .pd,.tut-card .td{display:block;overflow:visible;-webkit-line-clamp:unset;font-size:13px}
  .cmds{overflow-x:visible}
  .cmd-row{grid-template-columns:minmax(0,176px) minmax(0,1fr);align-items:center;gap:4px 16px;padding-block:3px}
  .cmd-row .f{display:inline-flex;align-items:center;min-height:44px;overflow-wrap:anywhere}
  .cmd-row.clickable .f{margin:0}
  .cmd-row .c{font-size:13px;overflow-wrap:anywhere}
  .cmds .more-btn{display:inline-flex;align-items:center;min-height:44px;padding-inline:4px}
  .post{height:auto;min-height:88px;padding:16px 20px;gap:16px}
  .post .ttl,.post .why{white-space:normal;overflow:visible;text-overflow:clip;overflow-wrap:anywhere}
  .post .ttl{line-height:1.45}.post .why{line-height:1.6}
  .grass-wrap{max-width:100%;overflow-x:auto;touch-action:pan-x pan-y}
  .grass-wrap:focus-visible,.d-body:focus-visible{outline:2px solid var(--accent-2);outline-offset:-2px}
  .grass-head{gap:16px;flex-wrap:wrap}
  .grass{min-width:480px}
  .lang-row{grid-template-columns:90px minmax(0,1fr) 32px;gap:12px}
  .nav{right:clamp(20px,4vw,64px);bottom:18px;gap:12px}
  .nav::before{content:"";position:fixed;left:0;right:0;bottom:0;height:var(--footer-height);background:#0a0c10f2;border-top:1px solid var(--line);z-index:-1;pointer-events:none}
  .hint{left:clamp(24px,4vw,64px);bottom:30px;max-width:calc(100% - 240px);font-size:11px;z-index:11}
  .dots{left:14px;gap:2px}
  .dots button,.dots button.on{position:relative;width:28px;height:28px;background:transparent;border-radius:6px}
  .dots button::before{content:"";position:absolute;left:10px;top:10px;width:8px;height:8px;border-radius:4px;background:var(--line)}
  .dots button.on::before{background:var(--accent-2);height:18px;top:5px}
  .modal{padding:16px;touch-action:pan-y}
  .modal-box,.detail .modal-box{max-height:calc(100dvh - 32px);max-width:100%}
  .modal-close,.detail .nav-btns button{width:44px;height:44px;flex-shrink:0}
  .modal-head{gap:12px}
  .modal-head h3{min-width:0}
  .modal-list,.detail .d-body{min-height:0;overscroll-behavior:contain;touch-action:pan-y}
  .step-row{min-height:44px}
  .arrow:focus-visible{outline:none;box-shadow:inset 0 0 0 3px #fff}
  .bcp-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .tut-grid{grid-template-columns:repeat(5,minmax(0,1fr))}
  @media(max-width:1100px){
    .tut-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
    .cv-lower{grid-template-columns:1fr}
    .cv-line{grid-template-columns:132px 46px minmax(0,1fr)}
    .cv-info{grid-template-columns:repeat(3,minmax(0,1fr))}
  }
  @media(max-width:900px){
    .split{grid-template-columns:minmax(0,1fr);gap:32px}
    .case-grid,.bcp-grid{grid-template-columns:1fr}
    .bcp-card .thumb{max-height:320px}
    .slide,#scv{padding-inline:32px;justify-content:flex-start}
    .dots{display:none}
  }
  @media(max-width:600px){
    :root{--header-height:116px;--footer-height:76px}
    .site-header{padding:8px 20px;gap:4px 16px;flex-wrap:wrap;align-content:center}
    .site-header .brand{order:0;flex:1}
    .site-header>.section-nav{order:2;flex:1 1 100%;margin:0;gap:12px}
    .site-header>a:last-child{order:1}
    .section-nav label{font-size:11px}
    #section-select{flex:1;min-width:0;width:auto;height:44px}
    .slide,#scv{padding:calc(var(--header-height) + 24px) 20px calc(var(--footer-height) + 24px)}
    .kicker{font-size:11px;letter-spacing:.06em;gap:8px;margin-bottom:20px}
    h2{font-size:30px;line-height:1.3;margin-bottom:24px}
    .hero-actions{gap:10px;margin-top:24px}
    .hero-actions .action-link{flex:1 1 120px;padding-inline:12px}
    .case-card{padding:20px}.case-meta{gap:8px 16px}
    .cv-stats,.cv-info{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
    .cv-line{grid-template-columns:46px minmax(0,1fr);gap:4px 12px}
    .cv-line .w{grid-column:1/-1;grid-row:1;margin-bottom:4px}
    .cv-line .lg{grid-column:1;grid-row:2/4}
    .cv-line .org{grid-column:2;grid-row:2}.cv-line .d{grid-column:2;grid-row:3}
    .cv-head{gap:8px}.cv-head .role{font-size:12px}
    .cv-logos a{flex-basis:76px}
    .cmds{padding:16px;font-size:13px}
    .cmd-row{grid-template-columns:minmax(0,1fr);gap:0;border-bottom:1px solid var(--line);padding-block:8px}
    .cmd-row .c{padding:0 2px 6px;font-size:12px}
    .codepanel pre{padding:16px}
    .post{padding:16px;gap:12px}.post .rank{align-self:flex-start;padding-top:2px}
    .post .ttl{font-size:14px}.post .why{font-size:12px}
    .tut-grid{grid-template-columns:1fr}
    .tut-card .thumb{max-height:300px}
    .tut-card .tt{font-size:16px}
    .bcp-grid{gap:24px}.bcp-card .body{padding:20px}
    .linkbtn{font-size:13px;padding-inline:14px}
    .nav{right:16px;gap:8px;bottom:16px}
    .nav .counter{font-size:12px;min-width:52px}
    .hint{left:20px;bottom:29px;max-width:calc(100% - 188px);font-size:10px}
    .modal-head{padding:16px;flex-wrap:wrap}
    .modal-head h3{font-size:17px}
    .modal-list,.detail .d-body{padding:16px}
    .detail .d-title{flex-basis:calc(100% - 50px);font-size:16px}
    .detail .nav-btns{margin-left:auto}
    .step-body{padding:12px;margin-left:0}
  }
  @media(prefers-reduced-motion:reduce){
    *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
    #net,#three{display:none!important}
  }
  /* Progressive enhancement: links and document reading still work if scripts are disabled or fail. */
  html:not(.js),html:not(.js) body{height:auto;overflow:visible}
  html:not(.js) .site-header{position:relative}
  html:not(.js) #loader{display:none!important}
  html:not(.js) .section-nav,html:not(.js) .nav,html:not(.js) .dots,html:not(.js) .hint,html:not(.js) .progress{display:none}
  html:not(.js) .deck{height:auto}
  html:not(.js) .slide{position:relative;inset:auto;opacity:1;visibility:visible;transform:none;min-height:60vh;padding-block:48px;overflow:visible;border-bottom:1px solid var(--line)}
  html:not(.js) .slide .rise,html:not(.js) .arrow{opacity:1;transform:none}
  html:not(.js) .cmds .more-lines{display:contents}
  html:not(.js) .more-btn{display:none}
  @media print{
    .site-header,.skip-link{display:none!important}
    .slide,#scv{padding:32px;overflow:visible;min-height:0;justify-content:flex-start}
  }