/* PRISM Lab — shared styles */
*,*::before,*::after{box-sizing:border-box}
:root{
  color-scheme:light;
  --paper:#F1F4F3; --paper-2:#E4E9E7; --panel:#FFFFFF;
  --ink:#131B19; --ink-2:#4B5855; --ink-3:#77837F; --line:#CDD5D2;
  --accent:#B3322A; --on-accent:#FFFFFF;
  --b2:#2E5FCB; --b3:#1F8A55; --b4:#D23F2C; --b8:#8C1D3B; --b11:#8A6417;
  --display:"Bricolage Grotesque","Noto Sans KR","Avenir Next","Segoe UI",system-ui,sans-serif;
  --body:"Source Sans 3","Noto Sans KR","Segoe UI",system-ui,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,"SFMono-Regular",Menlo,monospace;
  --wrap:1120px;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    color-scheme:dark;
    --paper:#0E1413; --paper-2:#172120; --panel:#141D1C;
    --ink:#E3EAE7; --ink-2:#A2AFAB; --ink-3:#71807B; --line:#2A3634;
    --accent:#FF6A56; --on-accent:#1A0B08;
    --b2:#6F97FF; --b3:#4BC487; --b4:#FF6A56; --b8:#E65B86; --b11:#D8A849;
  }
}
:root[data-theme="dark"]{
  color-scheme:dark;
  --paper:#0E1413; --paper-2:#172120; --panel:#141D1C;
  --ink:#E3EAE7; --ink-2:#A2AFAB; --ink-3:#71807B; --line:#2A3634;
  --accent:#FF6A56; --on-accent:#1A0B08;
  --b2:#6F97FF; --b3:#4BC487; --b4:#FF6A56; --b8:#E65B86; --b11:#D8A849;
}

body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--body);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%}
[hidden]{display:none!important}
a{color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:2px}
h1,h2,h3{font-family:var(--display);text-wrap:balance;margin:0;line-height:1.1}
p{margin:0}
.wrap{max-width:var(--wrap);margin-inline:auto;padding-inline:clamp(16px,4vw,40px)}
.eyebrow{font-family:var(--mono);font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3)}
.muted{color:var(--ink-2)}

/* header */
.site-head{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--paper) 90%,transparent);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.site-head .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:62px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-family:var(--display);font-weight:800;letter-spacing:.04em;font-size:1.05rem}
.brand img{width:34px;height:34px;flex:none;border-radius:50%}
.nav ul{display:flex;gap:clamp(14px,2.4vw,30px);list-style:none;margin:0;padding:0}
.nav a{text-decoration:none;color:var(--ink-2);font-size:.97rem;padding-block:6px;border-bottom:2px solid transparent}
.nav a:hover{color:var(--ink)}
.nav a[aria-current="page"]{color:var(--ink);border-bottom-color:var(--accent)}
.nav{margin-left:auto}
.tools{display:flex;align-items:center;gap:10px;margin-left:clamp(12px,2.4vw,28px)}
.lang-switch{display:flex;border:1px solid var(--line);border-radius:999px;overflow:hidden;font-family:var(--mono);font-size:.75rem}
.lang-switch a,.lang-switch span{padding:5px 9px;text-decoration:none;color:var(--ink-2)}
.lang-switch a:hover{color:var(--ink);background:var(--paper-2)}
.lang-switch [aria-current]{background:var(--ink);color:var(--paper)}
.theme-btn{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;border:1px solid var(--line);background:none;color:var(--ink-2);cursor:pointer;padding:0}
.theme-btn:hover{color:var(--ink);border-color:var(--ink-2)}
.theme-btn svg{width:17px;height:17px}
.theme-btn .sun{display:none}
.theme-btn[data-mode="dark"] .sun{display:block}
.theme-btn[data-mode="dark"] .moon{display:none}
.menu-btn{display:none;font:inherit;background:none;border:1px solid var(--line);border-radius:8px;padding:6px 12px;color:var(--ink);cursor:pointer}
@media (max-width:760px){
  .menu-btn{display:block}
  .nav{position:absolute;left:0;right:0;top:100%;background:var(--paper);border-bottom:1px solid var(--line);display:none}
  .nav.open{display:block}
  .nav ul{flex-direction:column;gap:0;padding:8px clamp(16px,4vw,40px) 16px}
  .nav a{display:block;padding:10px 0;border-bottom:1px solid var(--line)}
  .nav a[aria-current="page"]{border-bottom-color:var(--line);color:var(--accent)}
}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 18px;border-radius:999px;font-weight:600;text-decoration:none;border:1.5px solid var(--ink);font-size:.97rem;transition:transform .15s ease}
.btn:hover{transform:translateY(-1px)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--on-accent)}
.more{font-weight:600;text-decoration:none;color:var(--accent)}
.more:hover{text-decoration:underline}

/* sections */
.section{padding-block:clamp(48px,7vw,88px)}
.section + .section{padding-top:0}
.sec-title{display:flex;justify-content:space-between;align-items:baseline;gap:16px;flex-wrap:wrap;margin-bottom:24px}
.sec-title h2{font-size:clamp(1.6rem,3vw,2.2rem);font-weight:600;letter-spacing:-.02em}

/* home hero */
.hero{padding-block:clamp(40px,7vw,96px) clamp(24px,4vw,48px)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(24px,4vw,56px);align-items:center}
@media (max-width:860px){.hero-grid{grid-template-columns:1fr}}
.hero h1{font-size:clamp(4rem,12vw,8.5rem);font-weight:800;letter-spacing:-.045em;line-height:.9;margin-top:16px}
.hero h1.ko-title{font-size:clamp(2.6rem,6.4vw,4.8rem);letter-spacing:-.02em;line-height:1.1}
.expand{margin-top:18px;font-family:var(--display);font-size:clamp(1.05rem,1.8vw,1.3rem);line-height:1.35;color:var(--ink-2);max-width:32ch}
.hero .lead{margin-top:20px;font-size:1.2rem;max-width:40ch}
.ctas{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-logo{display:block;justify-self:center;width:min(100%,460px);height:auto;aspect-ratio:1;border-radius:50%;box-shadow:0 0 0 1px rgba(255,255,255,.14),0 0 70px rgba(95,200,255,.28)}

/* research tiles */
.tiles{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
@media (max-width:860px){.tiles{grid-template-columns:1fr}}
.tile{display:flex;flex-direction:column;gap:10px;text-decoration:none;padding-bottom:18px;border-bottom:1px solid var(--line)}
.tile .art{aspect-ratio:16/10;max-width:100%;border-radius:12px;background:var(--paper-2);overflow:hidden;margin-bottom:6px}
.tile .art svg{width:100%;height:100%;display:block}
.tile h3{font-size:1.3rem;font-weight:700;letter-spacing:-.01em}
.tile p{color:var(--ink-2)}
.tile:hover h3{color:var(--accent)}

/* news */
.news-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
@media (max-width:860px){.news-cards{grid-template-columns:1fr}}
.news-card{display:flex;flex-direction:column;gap:8px;text-decoration:none}
.thumb{aspect-ratio:16/10;max-width:100%;border-radius:10px;background:var(--paper-2);overflow:hidden}
.thumb svg{width:100%;height:100%;display:block}
.date{font-family:var(--mono);font-size:.78rem;color:var(--ink-3);font-variant-numeric:tabular-nums}
.news-card h3{font-size:1.05rem;font-weight:600;line-height:1.3}
a.news-card:hover h3{color:var(--accent)}
.news-list{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.news-list li{display:grid;grid-template-columns:180px minmax(0,1fr);gap:20px;padding:20px 0;border-bottom:1px solid var(--line);align-items:center}
.news-list .thumb{border-radius:8px}
.news-list h3{font-size:1.1rem;font-weight:600;line-height:1.3;margin-top:4px}
.news-list p{color:var(--ink-2);margin-top:4px}
@media (max-width:560px){.news-list li{grid-template-columns:110px minmax(0,1fr);gap:14px}.news-list p{display:none}}

/* join strip */
.join-strip{background:var(--ink);color:var(--paper);border-radius:18px;padding:clamp(24px,4vw,40px);display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px}
.join-strip h2{font-size:clamp(1.4rem,2.6vw,1.9rem);font-weight:600}
.join-strip p{color:color-mix(in srgb,var(--paper) 75%,transparent);margin-top:6px}
.join-strip .btn{border-color:var(--paper);color:var(--paper)}

/* inner pages */
.page-head{padding-block:clamp(40px,6vw,72px) clamp(20px,3vw,32px)}
.crumbs{font-family:var(--mono);font-size:.78rem;color:var(--ink-3);margin-bottom:14px}
.crumbs a{text-decoration:none}
.crumbs a:hover{color:var(--ink)}
.page-head h1{font-size:clamp(2.2rem,5vw,3.6rem);font-weight:700;letter-spacing:-.03em}
.page-head .intro{margin-top:14px;font-size:1.15rem;color:var(--ink-2);max-width:56ch}
.block{padding-block:28px;border-top:1px solid var(--line)}
.block h2{font-size:1.25rem;font-weight:600;margin-bottom:14px}
.plain-list{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.plain-list li{padding-left:18px;position:relative}
.plain-list li::before{content:"";position:absolute;left:0;top:.62em;width:7px;height:7px;border-radius:50%;background:var(--accent)}
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(20px,4vw,48px)}
@media (max-width:760px){.split{grid-template-columns:1fr}}

/* people */
.people{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px 20px}
@media (max-width:900px){.people{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media (max-width:620px){.people{grid-template-columns:repeat(2,minmax(0,1fr))}}
.person{display:flex;flex-direction:column;gap:4px}
.photo{aspect-ratio:4/5;max-width:100%;border-radius:10px;background:var(--paper-2);display:grid;place-items:center;margin-bottom:8px;overflow:hidden}
.photo svg{width:38%;height:38%}
.person h3{font-size:1.05rem;font-weight:600}
.person .ko{color:var(--ink-3);font-size:.92rem;margin-left:4px;font-family:var(--body);font-weight:400}
.person .role{font-family:var(--mono);font-size:.75rem;color:var(--ink-3)}
.person p{color:var(--ink-2);font-size:.95rem;line-height:1.4}
.pi{display:grid;grid-template-columns:220px minmax(0,1fr);gap:clamp(20px,4vw,40px);align-items:start}
@media (max-width:620px){.pi{grid-template-columns:1fr}.pi .photo{max-width:220px}}
.pi h3{font-size:1.5rem;font-weight:700}
.pi .role{margin-top:4px}
.pi p{margin-top:12px;color:var(--ink-2);max-width:56ch}
.links{display:flex;flex-wrap:wrap;gap:10px 18px;margin-top:14px}
.links a{font-weight:600;color:var(--accent);text-decoration:none}
.links a:hover{text-decoration:underline}
.tbd{color:var(--ink-3);font-style:italic}

/* publications */
.filters{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px}
.filters button{font:inherit;font-size:.9rem;padding:6px 14px;border-radius:999px;border:1px solid var(--line);background:transparent;color:var(--ink-2);cursor:pointer}
.filters button:hover{border-color:var(--ink-2);color:var(--ink)}
.filters button[aria-pressed="true"]{background:var(--ink);border-color:var(--ink);color:var(--paper)}
.year{font-family:var(--display);font-size:1.4rem;font-weight:700;margin-top:28px;padding-bottom:6px;border-bottom:2px solid var(--ink)}
.publist{list-style:none;margin:0;padding:0}
.publist li{padding:14px 0;border-bottom:1px solid var(--line)}
.publist .t{font-weight:600;line-height:1.35}
.publist .a{color:var(--ink-2);font-size:.95rem;margin-top:2px}
.publist .a b{color:var(--ink)}
.publist .v{color:var(--ink-3);font-size:.93rem}

/* join */
.tracks{width:100%;border-collapse:collapse;font-size:.97rem}
.tracks th,.tracks td{text-align:left;padding:12px 14px 12px 0;border-bottom:1px solid var(--line);vertical-align:top}
.tracks th{font-family:var(--mono);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-3);font-weight:400}
.tracks td:first-child{font-weight:600;white-space:nowrap}
.tracks .ko{display:block;font-weight:400;color:var(--ink-3);font-size:.88rem}
.table-wrap{overflow-x:auto}
.email{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:10px}
.email a{font-family:var(--mono);font-size:1rem;text-decoration:none;border-bottom:1px solid var(--line)}
.copy{font:inherit;font-size:.85rem;padding:5px 12px;border-radius:999px;border:1px solid var(--line);background:transparent;color:var(--ink);cursor:pointer}
.copy:hover{border-color:var(--ink-2)}

/* footer */
.site-foot{border-top:1px solid var(--line);margin-top:clamp(40px,6vw,72px);padding-block:28px 40px;color:var(--ink-3);font-size:.92rem}
.site-foot .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px}
.site-foot a{text-decoration:none}
.site-foot a:hover{color:var(--ink)}
.site-foot .cols{display:flex;flex-wrap:wrap;gap:8px 24px}

@media (prefers-reduced-motion: reduce){.btn{transition:none}.btn:hover{transform:none}}

:lang(ko){word-break:keep-all;overflow-wrap:break-word}

/* home: plain lists instead of cards */
.plain-h{font-size:clamp(1.3rem,2.4vw,1.7rem);font-weight:600;letter-spacing:-.01em;margin-bottom:12px}
.area-list,.home-news{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.area-list li{border-bottom:1px solid var(--line)}
.area-list a{display:grid;grid-template-columns:minmax(0,18rem) minmax(0,1fr);gap:8px 32px;align-items:baseline;padding:18px 0;text-decoration:none}
.area-list h3{font-size:1.2rem;font-weight:600}
.area-list p{color:var(--ink-2)}
.area-list a:hover h3{color:var(--accent)}
.home-news li{display:grid;grid-template-columns:7rem minmax(0,1fr);gap:8px 32px;padding:16px 0;border-bottom:1px solid var(--line);align-items:baseline}
.home-news h3{font-size:1.05rem;font-weight:600;line-height:1.35}
.home-news p{color:var(--ink-2);margin-top:2px}
.home-news + .more{display:inline-block;margin-top:14px}
@media (max-width:640px){.area-list a,.home-news li{grid-template-columns:1fr}}
.note{max-width:44rem;border-left:3px solid var(--accent);padding:4px 0 4px 22px}
.note h2{font-size:clamp(1.3rem,2.4vw,1.7rem);font-weight:600}
.note p{margin-top:10px;font-size:1.08rem}
.note .sig{font-size:.95rem;color:var(--ink-2)}
.hero .tagline{margin-top:26px;font-family:var(--display);font-size:clamp(1.5rem,2.6vw,2rem);font-weight:600;letter-spacing:-.01em;line-height:1.2}
.hero .tagline + .lead{margin-top:8px}

/* research rows (home + research index): image and text, alternating sides */
.area-rows{display:flex;flex-direction:column;gap:clamp(28px,5vw,56px);margin-top:20px}
.area-row{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:clamp(20px,4vw,48px);align-items:center}
.area-row:nth-child(even){grid-template-columns:minmax(0,1fr) minmax(0,1.2fr)}
.area-row:nth-child(even) .ill{order:2}
.area-text h3{font-size:clamp(1.3rem,2.4vw,1.7rem);font-weight:600;letter-spacing:-.01em}
.area-text h3 a{text-decoration:none}
.area-text h3 a:hover{color:var(--accent)}
.area-text p{color:var(--ink-2);margin-top:8px;font-size:1.05rem}
.area-text .more{display:inline-block;margin-top:12px}
@media (max-width:760px){.area-row,.area-row:nth-child(even){grid-template-columns:1fr}.area-row:nth-child(even) .ill{order:0}}
.fig{margin:0}
.fig img{display:block;width:100%;height:auto;border-radius:10px;background:#fff;border:1px solid var(--line)}
.fig figcaption{margin-top:6px;font-size:.78rem;color:var(--ink-3)}
.fig figcaption a{color:inherit}
.fig.wide{margin-bottom:28px;max-width:min(100%,var(--w,100%))}
.fig-empty{aspect-ratio:8/3;border-radius:10px;border:1px dashed var(--line);background:var(--paper-2);display:grid;place-items:center;color:var(--ink-3);font-size:.9rem}

/* compact hero: small logo beside the name, one horizontal band */
.hero{padding-block:clamp(28px,4vw,48px) clamp(8px,2vw,16px)}
.hero-grid{grid-template-columns:auto minmax(0,1fr);gap:clamp(20px,3vw,36px);align-items:center}
.hero-logo{width:clamp(96px,14vw,168px);box-shadow:0 0 0 1px rgba(255,255,255,.14),0 0 36px rgba(95,200,255,.22)}
.hero h1{font-size:clamp(2.4rem,5vw,3.6rem);font-weight:800;letter-spacing:-.04em;line-height:1;margin-top:0}
.hero h1.ko-title{font-size:clamp(1.9rem,4vw,2.8rem)}
.hero .expand{margin-top:6px;font-size:clamp(.95rem,1.4vw,1.08rem);max-width:none}
.hero .tagline{margin-top:14px;font-size:clamp(1.15rem,2vw,1.45rem)}
.hero .tagline + .lead{margin-top:4px;font-size:1rem;max-width:66ch;color:var(--ink-2)}
@media (max-width:560px){.hero-grid{grid-template-columns:1fr}.hero-logo{width:96px}}

/* research illustrations */
.ill{border-radius:14px;overflow:hidden;aspect-ratio:16/10;box-shadow:0 0 0 1px var(--line)}
.ill svg{display:block;width:100%;height:100%}
.area-row,.area-row:nth-child(even){grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
.hero-logo{justify-self:start}

/* tighter home: everything important within about one screen */
.hero{padding-block:clamp(20px,3vw,32px) 0}
.hero-logo{width:clamp(80px,9vw,112px)}
.hero h1{font-size:clamp(2rem,3.6vw,2.6rem)}
.hero h1.ko-title{font-size:clamp(1.7rem,3vw,2.2rem)}
.hero .expand{margin-top:2px;font-size:.95rem}
.hero .tagline{margin-top:8px;font-size:clamp(1.05rem,1.6vw,1.25rem)}
.hero .tagline + .lead{font-size:.95rem;line-height:1.5}
.hero + .section{padding-top:clamp(28px,4vw,44px)}
.area-rows{gap:14px;margin-top:8px}
.area-row,.area-row:nth-child(even){grid-template-columns:clamp(180px,20vw,240px) minmax(0,1fr);gap:clamp(16px,3vw,32px)}
.area-row:nth-child(even) .ill{order:0}
.ill{aspect-ratio:16/9;border-radius:10px}
.area-text h3{font-size:clamp(1.1rem,1.8vw,1.35rem)}
.area-text p{margin-top:4px;font-size:1rem}
.area-text .more{margin-top:6px}
@media (max-width:560px){.area-row,.area-row:nth-child(even){grid-template-columns:120px minmax(0,1fr)}.area-text p{font-size:.92rem}.hero-logo{width:72px}}

/* research areas: three even columns on wide screens */
@media (min-width:761px){
  .area-rows{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(16px,2.4vw,32px)}
  .area-row,.area-row:nth-child(even){display:flex;flex-direction:column;align-items:stretch;gap:14px}
  .ill{aspect-ratio:16/10}
}
@media (min-width:561px) and (max-width:760px){.area-row,.area-row:nth-child(even){grid-template-columns:180px minmax(0,1fr)}}
.hero .tagline + .lead{max-width:92ch}