:root{--bg:#f5f3ee;--paper:#fffefb;--ink:#192434;--sub:#566171;--line:#d8dcd9;--blue:#235c79;--blue-light:#e8f0f2;--orange:#c86444;--orange-light:#f8eee8;--green:#4e7262;--green-light:#eaf2ec}
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Noto Sans KR",sans-serif;line-height:1.75;word-break:keep-all;-webkit-font-smoothing:antialiased}
    a{color:inherit;text-underline-offset:4px}a:hover{color:var(--blue)}
    a:focus-visible{outline:3px solid var(--orange);outline-offset:4px;border-radius:2px}
    .wrap{width:min(1120px,calc(100% - 48px));margin:auto}
    .skip{position:absolute;left:-9999px;top:8px;background:var(--ink);color:white;padding:8px 12px;z-index:10}.skip:focus{left:8px}
    .site-header{border-bottom:1px solid var(--line);background:var(--bg)}
    .site-header .wrap{display:flex;justify-content:space-between;align-items:center;gap:24px;min-height:72px}
    .brand{font-size:15px;font-weight:800;letter-spacing:-.04em;text-decoration:none;white-space:nowrap}
    nav{display:flex;flex-wrap:wrap;gap:22px;font-size:13px;font-weight:650;color:var(--sub)}nav a{text-decoration:none}
    .hero{padding:100px 0 86px;display:grid;grid-template-columns:minmax(0,1.65fr) minmax(250px,.7fr);gap:56px;align-items:end}
    .eyebrow,.kicker{margin:0;color:var(--blue);font-size:12px;font-weight:800;letter-spacing:.13em;text-transform:uppercase}
    h1{max-width:780px;margin:18px 0 26px;font-size:clamp(40px,6.5vw,76px);line-height:1.16;letter-spacing:-.07em}
    .lead{max-width:710px;margin:0;color:#3e4a57;font-size:clamp(16px,2vw,19px);line-height:1.75}
    .hero-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
    .button{display:inline-flex;align-items:center;justify-content:center;min-height:43px;padding:8px 16px;border:1px solid var(--ink);border-radius:7px;background:var(--ink);color:white;font-size:13px;font-weight:750;text-decoration:none}.button:hover{background:var(--blue);color:white;border-color:var(--blue)}.button.secondary{background:transparent;color:var(--ink)}.button.secondary:hover{color:var(--blue);border-color:var(--blue)}
    .hero-note{padding:24px;border:1px solid var(--line);border-radius:12px;background:var(--paper);font-size:13px;color:var(--sub)}.hero-note strong{display:block;color:var(--ink);font-size:14px;margin-bottom:9px}.hero-note p{margin:0 0 12px}.hero-note p:last-child{margin:0}
    .overview{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:0 0 92px}.overview div{padding:23px 25px;background:var(--ink);color:#e4ebed;min-height:116px}.overview div:first-child{border-radius:12px 0 0 12px}.overview div:last-child{border-radius:0 12px 12px 0}.overview strong{display:block;color:white;font-size:24px;line-height:1.2;margin-bottom:8px}.overview span{font-size:12px;line-height:1.5}
    .section-heading{display:flex;justify-content:space-between;align-items:end;gap:24px;padding-bottom:20px;border-bottom:1px solid var(--line)}.section-heading h2{margin:6px 0 0;font-size:clamp(29px,4vw,45px);line-height:1.25;letter-spacing:-.055em}.section-heading p{max-width:330px;margin:0;color:var(--sub);font-size:13px}
    .project{padding:38px 0 70px;border-bottom:1px solid var(--line)}.project-top{display:grid;grid-template-columns:1fr auto;align-items:start;gap:20px}.project h3{margin:0;font-size:clamp(24px,3.4vw,35px);letter-spacing:-.05em;line-height:1.35}.status{display:inline-block;padding:5px 10px;border:1px solid var(--line);border-radius:99px;background:var(--paper);font-size:11px;font-weight:750;white-space:nowrap;color:var(--green)}
    .case-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:30px}.case{min-width:0;overflow-wrap:anywhere;padding:22px 23px;background:var(--paper);border:1px solid var(--line);border-radius:10px}.case .label{margin:0 0 11px;color:var(--blue);font-size:11px;font-weight:800;letter-spacing:.1em}.case h4{font-size:16px;line-height:1.5;letter-spacing:-.025em;margin:0 0 8px}.case p{margin:0;color:var(--sub);font-size:13px}.case p+p{margin-top:8px}
    .diagram{margin:28px 0 0;padding:24px;border-radius:11px;background:var(--blue-light);border:1px solid #d1e0e5}.diagram.orange{background:var(--orange-light);border-color:#eddacb}.diagram.green{background:var(--green-light);border-color:#d5e5da}.diagram figcaption{margin-bottom:16px;font-size:12px;font-weight:800;letter-spacing:.08em;color:var(--blue)}.diagram.orange figcaption{color:#975038}.diagram.green figcaption{color:var(--green)}
    .flow{display:flex;align-items:stretch;gap:8px}.step{display:flex;align-items:center;justify-content:center;flex:1;min-width:0;padding:14px 10px;background:var(--paper);border:1px solid var(--line);border-radius:7px;text-align:center;font-size:12px;font-weight:700;line-height:1.45}.arrow{align-self:center;color:var(--blue);font-weight:900}.flow-note{margin:13px 0 0;color:var(--sub);font-size:12px}
    .meta{display:grid;grid-template-columns:1fr 1fr;gap:28px;margin-top:25px;color:var(--sub);font-size:13px}.meta p{margin:0}.meta strong{color:var(--ink)}
    .evidence{margin-top:28px;padding:18px 22px;border-left:3px solid var(--orange);background:var(--paper);font-size:13px;color:var(--sub)}.evidence strong{color:var(--ink)}.evidence p{margin:0}.evidence p+p{margin-top:7px}
    .split{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:27px}.split .case{height:100%}
    .mini-list{margin:12px 0 0;padding-left:18px;color:var(--sub);font-size:13px}.mini-list li+li{margin-top:5px}
    .archive{padding:83px 0 95px}.archive-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:18px;margin-top:30px}.archive-card{display:flex;flex-direction:column;min-height:300px;padding:28px;border:1px solid var(--line);border-radius:12px;background:var(--paper)}.archive-card h3{font-size:22px;letter-spacing:-.04em;margin:13px 0 9px}.archive-card p{font-size:13px;color:var(--sub);margin:0 0 16px}.archive-card .links{display:flex;flex-wrap:wrap;gap:15px;margin-top:auto;font-size:13px;font-weight:750}.archive-card .links a{color:var(--blue)}.app-card{position:relative;overflow:hidden;background:#101a33;color:white;border-color:#101a33}.app-card:before{content:"";position:absolute;inset:auto -80px -130px auto;width:360px;height:360px;border-radius:50%;background:radial-gradient(circle,#637ab87c,transparent 69%);pointer-events:none}.app-card img{width:66px;height:66px;border-radius:15px;box-shadow:0 12px 30px #0006}.app-card p{color:#cbd5e1}.app-card .links a{color:#f0e6b7}
    .note{margin:19px 0 0;color:var(--sub);font-size:12px}
    footer{padding:28px 0 45px;border-top:1px solid var(--line);color:var(--sub);font-size:12px}.footer-line{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}footer a{margin-left:16px}
    @media(max-width:760px){.wrap{width:min(100% - 32px,1120px)}.site-header .wrap{align-items:flex-start;flex-direction:column;justify-content:center;padding:15px 0;gap:7px}nav{gap:14px}.hero{grid-template-columns:1fr;padding:70px 0 44px;gap:30px}.overview{grid-template-columns:1fr;gap:1px;margin-bottom:70px}.overview div{min-height:auto!important;border-radius:0!important;padding:17px 20px}.overview div:first-child{border-radius:10px 10px 0 0!important}.overview div:last-child{border-radius:0 0 10px 10px!important}.section-heading{display:block}.section-heading p{margin-top:12px}.project-top{grid-template-columns:1fr}.status{justify-self:start}.case-grid,.split,.meta,.archive-grid{grid-template-columns:1fr}.flow{flex-direction:column}.arrow{transform:rotate(90deg)}.archive{padding:65px 0}.archive-card{min-height:260px}}
    @media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
    .overview a{display:block;padding:23px 25px;background:var(--ink);color:#e4ebed;min-height:116px;text-decoration:none}.overview a:hover{background:var(--blue);color:white}.overview a:first-child{border-radius:12px 0 0 12px}.overview a:last-child{border-radius:0 12px 12px 0}.overview a strong{display:block;color:white;font-size:20px;line-height:1.3;margin-bottom:8px}.overview a span{font-size:12px;line-height:1.5}
    .topic{padding:0 0 86px}.topic+.topic{padding-top:7px}.research-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:18px;margin-top:30px}.research-grid .archive-card{min-height:375px}.research-flow{margin:16px 0 20px;padding:18px;border-radius:8px;background:var(--blue-light)}.research-flow figcaption{font-size:11px;font-weight:800;color:var(--blue);margin-bottom:10px}.research-flow div{display:flex;flex-wrap:wrap;gap:7px}.research-flow span{padding:6px 9px;border:1px solid #cbdfe6;border-radius:5px;background:white;color:var(--ink);font-size:11px;font-weight:700}.research-flow span:not(:last-child):after{content:"→";margin-left:8px;color:var(--blue)}.case.small{margin-top:auto;padding:17px}.case.small h4{font-size:14px}.app-feature{display:grid;grid-template-columns:minmax(230px,.8fr) 1.2fr;overflow:hidden;margin-top:30px;border:1px solid var(--line);border-radius:12px;background:var(--paper)}.app-visual{display:flex;min-height:300px;align-items:center;justify-content:center;gap:25px;background:radial-gradient(circle at 50% 40%,#273e79,#0e1731 73%);color:#dce8ff;font-size:13px;font-weight:800;letter-spacing:.15em}.app-visual img{width:110px;height:110px;border-radius:24px;box-shadow:0 24px 60px #0007}.app-content{display:flex;flex-direction:column;padding:35px}.app-content h3{margin:12px 0 10px;font-size:30px;letter-spacing:-.04em}.app-content p:not(.kicker){margin:0;color:var(--sub);font-size:14px}.app-content .links{display:flex;gap:18px;flex-wrap:wrap;margin-top:auto;padding-top:30px;font-size:13px;font-weight:800;color:var(--blue)}.more-title{margin:30px 0 12px;font-size:17px;letter-spacing:-.03em}.app-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.app-tile{display:flex;align-items:center;gap:18px;padding:14px;border:1px solid var(--line);border-radius:10px;background:var(--paper);text-decoration:none}.app-tile:hover{border-color:var(--blue)}.app-tile img{width:76px;height:76px;object-fit:cover;border-radius:8px}.app-tile strong,.app-tile small{display:block}.app-tile strong{font-size:15px}.app-tile small{color:var(--sub);font-size:12px}
    @media(max-width:760px){.overview a{min-height:auto!important;border-radius:0!important;padding:17px 20px}.overview a:first-child{border-radius:10px 10px 0 0!important}.overview a:last-child{border-radius:0 0 10px 10px!important}.research-grid,.app-grid,.app-feature{grid-template-columns:1fr}.app-visual{min-height:210px}.app-content{padding:26px}.topic{padding-bottom:70px}}

/* The landing page is a quick index; detailed evidence lives on separate pages. */
.landing-hero{padding:90px 0 54px;display:block}.landing-hero h1{margin:16px 0 18px;max-width:860px;font-size:clamp(48px,5.8vw,72px)}.landing-hero p:not(.eyebrow){max-width:680px;margin:0;color:var(--sub);font-size:17px}.landing-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:18px 0 45px}.landing-card{display:flex;flex-direction:column;min-height:450px;overflow:hidden;border:1px solid var(--line);border-radius:12px;background:var(--paper);text-decoration:none;transition:transform .18s,border-color .18s,box-shadow .18s}.landing-card:hover{transform:translateY(-5px);border-color:var(--blue);box-shadow:0 14px 30px #1b34401a;color:var(--ink)}.landing-art{display:flex;align-items:center;justify-content:center;min-height:178px;padding:22px;overflow:hidden}.landing-art.research{gap:8px;background:#e8eee9}.landing-art.research span{display:grid;place-items:center;width:72px;height:95px;border:1px solid #b9cec2;background:#fbfffb;color:#4d7060;font-size:10px;font-weight:900;text-align:center;transform:rotate(-8deg)}.landing-art.research span:nth-child(2){transform:rotate(5deg);background:#d2e6d7}.landing-art.research span:nth-child(3){transform:rotate(-3deg);background:#8eb19b;color:white}.landing-art.apps{gap:17px;background:radial-gradient(circle at center,#2c4888,#10182f 70%)}.landing-art.apps img{width:70px;height:70px;border-radius:15px;box-shadow:0 12px 35px #0006}.landing-art.apps img:nth-child(2){width:58px;height:58px;opacity:.75}.landing-art.apps img:nth-child(3){width:50px;height:50px;opacity:.6}.landing-art.projects{gap:6px;background:#e7edf1;color:var(--blue);font-size:12px;font-weight:850}.landing-art.projects span{padding:14px 10px;border:1px solid #ccdfe8;border-radius:6px;background:#fff}.landing-card-body{display:flex;flex:1;flex-direction:column;padding:25px}.landing-card-body h2{margin:7px 0 8px;font-size:24px;line-height:1.3;letter-spacing:-.04em}.landing-card-body p:not(.kicker){margin:0;color:var(--sub);font-size:13px}.landing-card-body em{margin-top:auto;padding-top:20px;color:var(--blue);font-size:13px;font-style:normal;font-weight:850}.landing-proof{display:grid;grid-template-columns:1fr 1fr 1fr;gap:20px;margin:0 0 70px;padding:20px 0;border-top:1px solid var(--line);color:var(--sub);font-size:12px}.landing-proof strong{display:block;color:var(--ink);font-size:13px}.page-intro{padding:58px 0 35px}.breadcrumb{font-size:12px;color:var(--sub);text-decoration:none}.page-intro h1{margin:14px 0 14px;font-size:clamp(43px,5vw,62px)}.page-intro p:last-child{max-width:750px;margin:0;color:var(--sub);font-size:16px}.page-intro+.topic,.page-intro+.project-links{padding-top:20px}.project-links{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 20px}.project-links a{padding:8px 12px;border:1px solid var(--line);border-radius:6px;background:var(--paper);font-size:12px;font-weight:750;text-decoration:none}.project-links a:hover{border-color:var(--blue)}.detail-bottom{display:flex;justify-content:space-between;gap:20px;margin:0 0 76px;padding-top:22px;border-top:1px solid var(--line);font-size:13px;font-weight:800;color:var(--blue)}.detail-bottom a{text-decoration:none}
@media(max-width:760px){.landing-hero{padding:65px 0 32px}.landing-grid,.landing-proof{grid-template-columns:1fr}.landing-card{min-height:auto}.landing-proof{gap:8px}.page-intro{padding-top:42px}}

.app-gallery{display:grid;grid-template-columns:220px 220px 1fr;gap:14px;align-items:stretch;margin:17px 0 32px}.app-gallery figure{margin:0;padding:12px 12px 10px;border:1px solid var(--line);border-radius:10px;background:var(--paper)}.app-gallery img{display:block;width:100%;height:250px;object-fit:cover;object-position:top;border-radius:5px}.app-gallery figcaption{padding-top:9px;color:var(--sub);font-size:11px}.app-gallery>div{display:flex;flex-direction:column;justify-content:center;padding:24px 28px;border-radius:10px;background:var(--blue-light)}.app-gallery h3{margin:9px 0;font-size:21px;letter-spacing:-.04em}.app-gallery p:not(.kicker){margin:0 0 16px;color:var(--sub);font-size:13px}.app-gallery a{color:var(--blue);font-size:13px;font-weight:800}@media(max-width:760px){.app-gallery{grid-template-columns:1fr 1fr}.app-gallery>div{grid-column:1/-1}.app-gallery img{height:220px}}

/* Desktop reading scale */
:root{--sub:#394657;--line:#cbd2d3}
body{font-size:16px;line-height:1.72}
nav{font-size:15px} .brand{font-size:17px}
.landing-hero p:not(.eyebrow){font-size:19px;line-height:1.7}
.landing-card-body{padding:27px 28px}.landing-card-body h2{font-size:27px}.landing-card-body p:not(.kicker){font-size:16px;line-height:1.68}.landing-card-body em{font-size:15px}
.landing-proof,.landing-proof strong{font-size:15px}.page-intro p:last-child{font-size:18px}.breadcrumb{font-size:14px}
.section-heading h2{font-size:36px}.section-heading p{font-size:16px}.archive-card h3{font-size:25px}.archive-card p,.app-content p:not(.kicker),.case p{font-size:16px;line-height:1.7}
.case h4{font-size:18px}.case .label,.kicker,.eyebrow{font-size:13px}.case.small h4{font-size:17px}
.meta,.evidence,.note,.flow-note{font-size:15px}.step{font-size:14px;line-height:1.5}.status{font-size:13px}
.research-flow figcaption{font-size:13px}.research-flow span{font-size:13px}.app-tile strong{font-size:17px}.app-tile small{font-size:14px}.app-gallery p:not(.kicker){font-size:15px}.project-links a{font-size:14px}
@media(max-width:760px){.section-heading h2{font-size:30px}.landing-hero p:not(.eyebrow){font-size:17px}}

.paper-nav{display:flex;gap:8px;flex-wrap:wrap;margin:6px 0 12px}.paper-nav a{padding:8px 13px;border:1px solid var(--line);border-radius:6px;background:var(--paper);font-size:14px;font-weight:750;text-decoration:none}.paper-nav a:hover{border-color:var(--blue)}
.paper-section{padding:54px 0 70px;border-bottom:1px solid var(--line);scroll-margin-top:20px}.paper-heading{max-width:900px}.paper-heading h2{margin:8px 0 11px;font-size:clamp(32px,4vw,45px);letter-spacing:-.05em;line-height:1.22}.paper-heading>p:last-child{margin:0;color:var(--sub);font-size:17px}.paper-meta{display:flex;gap:9px;flex-wrap:wrap;list-style:none;margin:20px 0 26px;padding:0}.paper-meta li{padding:6px 11px;border:1px solid var(--line);border-radius:99px;background:var(--paper);font-size:13px;font-weight:700;color:var(--sub)}.paper-layout{display:grid;grid-template-columns:minmax(0,1.18fr) minmax(330px,.82fr);gap:24px;align-items:start}.paper-figure{margin:0;padding:12px;border:1px solid var(--line);border-radius:10px;background:var(--paper)}.paper-figure img{display:block;width:100%;height:380px;object-fit:contain;background:#eff1f0;border-radius:6px}.paper-figure figcaption{padding:12px 4px 3px;color:var(--sub);font-size:13px}.paper-copy{padding:2px 0}.paper-copy h3{margin:0 0 5px;color:var(--blue);font-size:15px}.paper-copy p{margin:0 0 17px;font-size:15px;color:var(--sub);line-height:1.72}.paper-link{display:inline-block;margin-top:2px;color:var(--blue);font-size:15px;font-weight:800}.teaching-section{padding:65px 0 50px}.teaching-section .case h3{margin:0 0 8px;font-size:19px}.teaching-section .split{margin-top:24px}@media(max-width:760px){.paper-layout{grid-template-columns:1fr}.paper-figure img{height:auto}.paper-section{padding:42px 0 55px}}
.paper-figure img.paper-page{object-fit:cover;object-position:center 13%}.paper-schematic{display:flex;min-height:380px;flex-direction:column;align-items:center;justify-content:center;gap:8px;border-radius:6px;background:var(--blue-light);text-align:center}.paper-schematic span{width:min(80%,300px);padding:7px 12px;border:1px solid #cbdfe6;border-radius:7px;background:white;color:var(--ink);font-size:15px;font-weight:750;line-height:1.4}.paper-schematic b{color:var(--blue);line-height:1}

.project-top{grid-template-columns:minmax(0,1fr) auto}.project-period{margin:9px 0 0;color:var(--sub);font-size:15px;font-weight:700}.project-problem{margin-top:24px;padding:17px 21px;border-left:3px solid var(--orange);background:var(--paper)}.project-problem strong{display:block;margin-bottom:5px;color:var(--orange);font-size:14px}.project-problem p{margin:0;font-size:16px;line-height:1.7}.project-stage{margin:26px 0 0;color:var(--blue);font-size:15px;font-weight:800}.project-stage+.case-grid,.project-stage+.split,.project-stage+.diagram{margin-top:13px}.project-process{max-width:840px;margin:10px 0 0;color:var(--sub);font-size:16px;line-height:1.7}.project-process+.diagram{margin-top:18px}
@media(max-width:760px){.project-top{grid-template-columns:1fr}}