:root{--orange:#f36b21;--orange-deep:#d74c08;--navy:#0b1b2b;--cream:#fff6e9;--paper:#fffdf8;--ink:#142331;--muted:#66717a;--line:#d9d2c7}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:"Pretendard","Noto Sans KR",Arial,sans-serif;word-break:keep-all}a{color:inherit;text-decoration:none}.skip-link{position:fixed;top:-100px;left:16px;background:white;padding:12px 18px;z-index:100}.skip-link:focus{top:12px}.header{height:82px;padding:0 clamp(22px,5vw,76px);display:flex;align-items:center;justify-content:space-between;background:rgba(255,253,248,.96);border-bottom:1px solid #ece5db;position:sticky;top:0;z-index:20}.brand{display:flex;align-items:center;gap:12px}.brand>span:last-child{display:grid;gap:3px}.brand strong{font-size:20px;letter-spacing:-.06em}.brand small{font-size:8px;letter-spacing:.15em;color:#7a7f82}.mark{width:37px;height:42px;display:grid;place-items:center;position:relative;color:white;background:var(--orange);font:900 20px/1 Georgia,serif;clip-path:polygon(0 0,100% 0,100% 76%,50% 100%,0 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a:last-child{border:0}.insight-grid a:hover{background:var(--orange);color:white;transform:translateY(-7px)}.insight-grid span{font-size:10px;letter-spacing:.16em;color:#7d858a}.insight-grid h3{font-size:19px;line-height:1.6;margin-top:38px}.insight-grid i{position:absolute;bottom:24px;right:24px;font:italic 24px Georgia,serif;color:var(--orange)}.insight-grid a:hover i,.insight-grid a:hover span{color:white}.contact{background:var(--orange-deep);color:white;text-align:center}.contact>p:not(.label){color:#ffd9c5;line-height:1.8}.contact>div{display:flex;align-items:center;justify-content:center;gap:34px;margin-top:36px}.cream-button{background:var(--cream);color:var(--ink);box-shadow:8px 8px 0 rgba(74,20,0,.25)}.contact>div span{text-align:left;font-size:13px;line-height:1.65;color:#ffd9c5}footer{padding:50px clamp(24px,7vw,112px);background:#07131f;color:white;display:grid;grid-template-columns:1fr auto;align-items:end;gap:10px}.footer-brand{grid-row:span 2}.footer-brand .mark{background:var(--orange)}footer>p{margin:0;color:#afbbc3;font-size:13px}footer>small{font-size:9px;color:#71808a}
@media(max-width:900px){.header nav{display:none}.hero{height:auto;min-height:660px}.about,.system,.director{grid-template-columns:1fr}.program-grid{grid-template-columns:1fr}.program-grid article{border-right:0;border-bottom:1px solid var(--line)}.program-grid article:last-child{border-bottom:0}.insight-grid{grid-template-columns:1fr 1fr}.insight-grid a:nth-child(2){border-right:0}.director{gap:48px}.portrait-placeholder{max-height:560px}.split{align-items:flex-start;flex-direction:column}.section{padding:86px 28px}}
@media(max-width:560px){.header{height:70px;padding:0 18px}.header .outline-button{display:none}.hero{min-height:610px;padding:70px 22px}.hero>img{object-position:66% center}.hero-shade{background:linear-gradient(90deg,rgba(5,17,28,.96),rgba(5,17,28,.68))}.hero h1{font-size:45px}.hero-actions{align-items:flex-start;flex-direction:column;gap:20px}.promise{grid-template-columns:1fr;padding:15px}.promise p{padding:8px;border-right:0}.about blockquote{font-size:20px}.insight-grid{grid-template-columns:1fr}.insight-grid a{border-right:0;border-bottom:1px solid var(--line);min-height:220px}.contact>div{flex-direction:column}.contact>div span{text-align:center}footer{grid-template-columns:1fr}.footer-brand{grid-row:auto;margin-bottom:18px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.insight-grid a{transition:none}}

/* Two-director presentation */
.directors{background:#edf6f5}.directors .section-head h2 span{color:var(--orange)}.director-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px}.director-grid>article{background:var(--paper);border-top:4px solid var(--orange);display:grid;grid-template-columns:minmax(180px,.72fr) 1fr;min-height:430px}.director-grid>article>img,.director-grid .portrait-placeholder{width:100%;height:100%;object-fit:cover;aspect-ratio:auto}.director-grid>article>div:last-child{padding:42px 34px}.director-grid h3{font:700 31px/1.3 Georgia,"Noto Serif KR",serif;margin:14px 0 16px}.director-grid strong{display:block;color:var(--orange-deep);font-size:14px;margin-bottom:22px}.director-grid article>div:last-child>p:not(.eyebrow){color:#5c666d;line-height:1.85;font-size:15px}.pending-line{display:inline-block;margin-top:22px;padding-top:14px;border-top:1px solid var(--line);font-size:10px;font-weight:800;letter-spacing:.16em;color:#7d858a}.director-link{display:inline-block;margin-top:20px;padding-bottom:5px;border-bottom:1px solid var(--ink);font-size:14px;font-weight:800}.math-director .portrait-placeholder{min-height:430px}.math-director .portrait-placeholder:after{font-size:130px}

/* Science director profile */
.profile-page{background:var(--paper)}.profile-header{height:72px;padding:0 clamp(24px,6vw,92px);display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);font-size:13px;font-weight:800}.profile-hero{padding:90px clamp(24px,7vw,112px) 100px;display:grid;grid-template-columns:1.15fr .72fr;gap:8vw;align-items:center;background:var(--cream)}.profile-hero h1{font:700 clamp(44px,5.5vw,76px)/1.18 Georgia,"Noto Serif KR",serif;letter-spacing:-.06em;margin:0}.profile-hero h1 em{font-style:normal;color:var(--orange)}.profile-hero .lead{font-size:18px;line-height:1.9;color:#56636b}.profile-hero figure{margin:0;position:relative}.profile-hero figure img{display:block;width:100%;aspect-ratio:4/5;object-fit:cover}.profile-hero figcaption{position:absolute;left:0;bottom:0;padding:14px 18px;background:var(--navy);color:white;font-size:12px}.signature{display:flex;align-items:center;gap:16px;margin:30px 0 18px}.signature b{font-size:25px}.signature span{padding-left:16px;border-left:1px solid var(--line);color:#657078}.research-highlight{display:inline-flex;flex-direction:column;gap:5px;margin-top:16px;padding:18px 22px;border-left:4px solid var(--orange);background:white}.research-highlight span{font-size:10px;letter-spacing:.13em;color:#6d777e}.research-highlight b{font-size:18px}.career-section,.teaching-section{padding:110px clamp(24px,7vw,112px);display:grid;grid-template-columns:.8fr 1.2fr;gap:9vw}.career-section h2,.teaching-section h2,.profile-contact h2{font:700 clamp(34px,4vw,56px)/1.35 Georgia,"Noto Serif KR",serif;letter-spacing:-.05em;margin:0}.career-section dl{margin:0}.career-section dl>div{display:grid;grid-template-columns:100px 1fr;gap:22px;padding:20px 0;border-bottom:1px solid var(--line)}.career-section dt{font-size:13px;color:#6b757c}.career-section dd{margin:0;line-height:1.85;font-size:16px}.career-section dd strong{color:var(--orange-deep)}.teaching-section{background:var(--navy);color:white}.teaching-list{display:grid;grid-template-columns:1fr 1fr;gap:34px}.teaching-list article{border-top:1px solid #465563;padding-top:18px}.teaching-list b{color:var(--orange);font:14px Georgia,serif}.teaching-list h3{font-size:21px;margin:18px 0 10px}.teaching-list p{color:#adbac4;line-height:1.8;font-size:14px}.profile-contact{padding:100px 24px;text-align:center;background:#edf6f5}.profile-contact .orange-button{margin-top:32px}
@media(max-width:1050px){.director-grid>article{grid-template-columns:1fr}.director-grid>article>img,.director-grid .portrait-placeholder{height:380px}.math-director .portrait-placeholder{min-height:380px}}
@media(max-width:760px){.director-grid,.profile-hero,.career-section,.teaching-section{grid-template-columns:1fr}.profile-hero{padding:70px 24px}.profile-hero figure{max-width:520px}.career-section,.teaching-section{padding:80px 24px}.teaching-list{grid-template-columns:1fr}.director-grid>article>div:last-child{padding:32px 26px}}
@media(max-width:480px){.director-grid>article>img,.director-grid .portrait-placeholder{height:330px}.career-section dl>div{grid-template-columns:1fr;gap:8px}}

/* Refined homepage cards: compact portraits with balanced editorial copy. */
.director-grid>.director-card{display:block;min-height:0;padding:42px 46px 46px}.director-card>h3{font-size:34px;margin:18px 0 32px}.director-summary{display:flex;align-items:center;gap:30px;margin-bottom:28px}.director-summary>img,.director-summary>.portrait-placeholder{width:210px;height:270px;flex:0 0 210px;object-fit:cover;border-radius:6px}.director-summary>.portrait-placeholder{min-height:0;padding:22px;background:linear-gradient(145deg,#d4ebe9,#a9d5d3)}.director-summary>.portrait-placeholder:after{font-size:92px;top:18%;left:14%}.director-summary>.portrait-placeholder p{font-size:25px}.director-summary>div:last-child{display:grid;gap:10px;min-width:0}.director-summary>div:last-child b{margin:0;color:var(--orange-deep);font-size:18px}.director-summary>div:last-child small{font-size:14px;line-height:1.7;color:#6d777d}.director-card>p:not(.eyebrow){min-height:82px;color:#59656c;line-height:1.85;font-size:15px}.director-card>ul{min-height:96px;margin:22px 0 0;padding-left:20px;color:#59656c;line-height:1.9;font-size:14px}.director-card .director-link{margin-top:28px}.system-link{display:inline-block;margin-top:18px;color:#ff9a61;font-size:14px;font-weight:800;border-bottom:1px solid #ff9a61;padding-bottom:4px}.insight-grid>div{min-height:250px;padding:30px 28px;border-right:1px solid var(--line);position:relative}.insight-grid>div:last-child{border:0}.insight-grid>div span{font-size:10px;letter-spacing:.16em;color:#7d858a}.insight-grid>div h3{font-size:19px;line-height:1.6;margin-top:38px}.insight-grid>div i{position:absolute;bottom:24px;right:24px;font:italic 24px Georgia,serif;color:var(--orange)}.contact .cream-button.secondary,.visit-contact .cream-button.secondary{background:transparent;color:white;border:1px solid rgba(255,255,255,.7);box-shadow:none}.contact .home-info-links{margin:54px auto 0;padding-top:24px;border-top:1px solid rgba(255,255,255,.28);max-width:620px;gap:28px}.home-info-links a{font-size:14px;font-weight:800;color:#fff4ec}

/* Math director profile */
.math-profile-hero{background:#edf6f5}.profile-placeholder{aspect-ratio:4/5;background:linear-gradient(145deg,#d4ebe9,#a9d5d3);display:flex;flex-direction:column;justify-content:flex-end;padding:40px;position:relative;overflow:hidden}.profile-placeholder:before{content:"+";position:absolute;left:12%;top:12%;font:200 180px/1 Arial;color:rgba(20,35,49,.16)}.profile-placeholder span{font-size:10px;letter-spacing:.18em}.profile-placeholder b{font:700 28px Georgia,"Noto Serif KR",serif;margin:12px 0 6px}.profile-placeholder small{color:#5f7076}.math-focus{display:grid;gap:0}.math-focus article{padding:24px 0;border-bottom:1px solid var(--line)}.math-focus b{color:var(--orange-deep);font-size:18px}.math-focus p{color:#59666d;line-height:1.85;margin:10px 0 0}.blog-section{padding:100px clamp(24px,7vw,112px);background:var(--navy);color:white;display:grid;grid-template-columns:1fr auto;gap:60px;align-items:center}.blog-section h2{font:700 clamp(34px,4vw,56px)/1.35 Georgia,"Noto Serif KR",serif;letter-spacing:-.05em;margin:0}.blog-section p:not(.label){color:#afbbc4;line-height:1.9;max-width:640px}.blog-section .cream-button{white-space:nowrap}

/* Shared academy information and directions */
.info-page{background:var(--paper);min-height:100vh}.info-hero{padding:92px clamp(24px,7vw,112px);background:var(--cream)}.info-hero h1{font:700 clamp(43px,5.4vw,74px)/1.2 Georgia,"Noto Serif KR",serif;letter-spacing:-.06em;margin:0}.info-hero h1 em{font-style:normal;color:var(--orange)}.info-hero>p:not(.label){font-size:17px;line-height:1.85;color:#5e6970;margin:28px 0 0;max-width:720px}.directions-hero{background:#edf6f5}.info-section{padding:100px clamp(24px,7vw,112px);display:grid;grid-template-columns:.7fr 1.3fr;gap:8vw}.info-section h2,.visit-grid h2,.visit-contact h2{font:700 clamp(32px,3.7vw,52px)/1.35 Georgia,"Noto Serif KR",serif;letter-spacing:-.05em;margin:0}.fact-grid{display:grid;grid-template-columns:1fr 1fr;margin:0}.fact-grid>div{padding:22px;border-bottom:1px solid var(--line)}.fact-grid dt{font-size:12px;color:#747d82;margin-bottom:9px}.fact-grid dd{margin:0;line-height:1.7;font-size:15px}.tuition-section{background:#edf6f5}.info-note{color:#5d696f;line-height:1.85;margin-top:22px}.tuition-wrap{overflow-x:auto}.tuition-wrap table{width:100%;border-collapse:collapse;background:var(--paper);min-width:570px}.tuition-wrap th,.tuition-wrap td{padding:18px 20px;border-bottom:1px solid var(--line);text-align:left;font-size:14px}.tuition-wrap thead th{background:var(--navy);color:white;font-size:12px}.tuition-wrap tbody th{font-weight:700}.tuition-wrap td:last-child strong{color:var(--orange-deep)}.provisional-note{margin:0 clamp(24px,7vw,112px) 70px;padding:28px 32px;border-left:5px solid var(--orange);background:var(--cream)}.provisional-note b{font-size:18px}.provisional-note p{margin:10px 0 0;color:#626c72;line-height:1.7}.info-actions{padding:0 clamp(24px,7vw,112px) 100px;display:flex;gap:18px}.visit-grid{padding:100px clamp(24px,7vw,112px);display:grid;grid-template-columns:.8fr 1.2fr;gap:8vw}.location-card{background:var(--orange);color:white;padding:52px}.location-card .label{color:#542008}.location-card h2 span{color:#542008}.location-card address{font-style:normal;font-size:17px;line-height:1.85;margin:32px 0}.location-card>p:not(.label){color:#ffe0cf;line-height:1.75}.map-choice>p:not(.label){color:#616c72;line-height:1.8}.map-choice>a{display:flex;align-items:center;justify-content:space-between;padding:24px 0;border-top:1px solid var(--line)}.map-choice>a:last-child{border-bottom:1px solid var(--line)}.map-choice>a span{display:grid;gap:8px}.map-choice small{font-size:10px;letter-spacing:.14em;color:var(--orange-deep)}.map-choice b{font-size:17px}.map-choice i{font-style:normal;font-size:22px;color:var(--orange)}.visit-contact{padding:85px clamp(24px,7vw,112px);background:var(--navy);color:white;display:grid;grid-template-columns:1fr auto;gap:60px;align-items:center}.visit-contact>div:first-child>p:not(.label){color:#afbbc4;line-height:1.8}.visit-contact>div:last-child{display:flex;gap:14px;flex-wrap:wrap}
@media(max-width:1000px){.director-summary{align-items:flex-start;flex-direction:column}.director-summary>img,.director-summary>.portrait-placeholder{width:100%;height:360px;flex-basis:auto}.director-card>p:not(.eyebrow),.director-card>ul{min-height:0}.header nav{gap:18px}.header nav a:first-child{display:none}}
@media(max-width:760px){.info-section,.visit-grid,.visit-contact,.blog-section{grid-template-columns:1fr}.info-section,.visit-grid{padding:76px 24px}.fact-grid{grid-template-columns:1fr}.info-actions{padding:0 24px 76px;flex-direction:column}.info-actions>*{text-align:center}.blog-section,.visit-contact{padding:70px 24px}.director-grid>.director-card{padding:32px 26px}.director-summary>img,.director-summary>.portrait-placeholder{height:390px}.insight-grid>div{border-right:0;border-bottom:1px solid var(--line)}.contact .home-info-links{flex-direction:row}.profile-placeholder{max-height:540px}}

/* Calm split hero, aligned with the editorial tone of the YUON site. */
.header{height:76px;background:rgba(255,253,248,.98)}.hero{height:auto;min-height:620px;padding:72px clamp(24px,7vw,112px);background:var(--cream);border-bottom:1px solid #e8dfd3}.hero>img{left:auto;right:0;width:47%;height:100%;object-position:58% center}.hero-shade{left:auto;right:0;width:47%;background:linear-gradient(90deg,rgba(11,27,43,.08),rgba(11,27,43,0) 28%,rgba(11,27,43,.12))}.hero-copy{max-width:48%;color:var(--ink);padding-right:clamp(20px,4vw,64px)}.hero-copy:before{content:"";display:block;width:42px;height:4px;background:var(--orange);margin-bottom:28px}.hero h1{font-size:clamp(42px,4.35vw,66px);line-height:1.2;letter-spacing:-.06em}.hero-copy>p:not(.kicker){font-size:clamp(16px,1.25vw,18px);line-height:1.85;color:#5a6670}.hero .plain-link{color:var(--ink);border-bottom:1px solid #899096;padding-bottom:4px}.hero .orange-button{padding:15px 23px;box-shadow:6px 6px 0 rgba(243,107,33,.18)}.hero-index{right:24px;bottom:22px;font-size:10px}.hero-index i{width:72px}.promise{min-height:62px}.section{padding-top:105px;padding-bottom:105px}.section-head h2,.system h2,.contact h2{font-size:clamp(34px,3.8vw,56px)}
.program,.directors,.system,.contact{scroll-margin-top:76px}.profile-page>.header,.info-page>.header{position:sticky;top:0;z-index:50;box-shadow:0 1px 0 rgba(20,35,49,.08)}
@media(max-width:900px){.hero{min-height:590px}.hero-copy{max-width:55%}.hero>img,.hero-shade{width:43%}.hero h1{font-size:clamp(39px,5.2vw,56px)}.header{height:72px}}
@media(max-width:660px){.hero{display:block;min-height:0;padding:0;background:var(--cream)}.hero>img{position:relative;display:block;width:100%;height:330px;object-position:62% center;order:2}.hero-shade{display:none}.hero-copy{max-width:none;padding:58px 24px 52px}.hero-copy:before{margin-bottom:22px}.hero h1{font-size:42px}.hero-index{display:none}.hero-actions{flex-direction:row;align-items:center}.promise{padding:14px}.section{padding-top:78px;padding-bottom:78px}}
@media(max-width:440px){.hero h1{font-size:38px}.hero-actions{align-items:flex-start;flex-direction:column}.hero>img{height:290px}}

/* Let the hero photograph dissolve behind the copy, then sharpen to the right. */
.hero{isolation:isolate;overflow:hidden}.hero>img{left:auto;right:0;width:66%;height:100%;z-index:0;object-position:58% center;-webkit-mask-image:linear-gradient(90deg,transparent 0%,rgba(0,0,0,.08) 9%,rgba(0,0,0,.42) 23%,#000 46%);mask-image:linear-gradient(90deg,transparent 0%,rgba(0,0,0,.08) 9%,rgba(0,0,0,.42) 23%,#000 46%)}.hero-shade{display:block;left:30%;right:auto;width:37%;height:100%;z-index:1;background:linear-gradient(90deg,var(--cream) 0%,rgba(255,246,233,.86) 24%,rgba(255,246,233,.42) 62%,rgba(255,246,233,0) 100%);pointer-events:none}.hero-copy{position:relative;z-index:2;max-width:54%}.hero-index{z-index:3}
@media(max-width:900px){.hero>img{width:62%;-webkit-mask-image:linear-gradient(90deg,transparent 0%,rgba(0,0,0,.16) 18%,#000 52%);mask-image:linear-gradient(90deg,transparent 0%,rgba(0,0,0,.16) 18%,#000 52%)}.hero-shade{left:35%;width:34%}.hero-copy{max-width:58%}}
@media(max-width:660px){.hero>img{left:auto;right:auto;width:100%;height:330px;-webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.45) 0%,#000 28%);mask-image:linear-gradient(180deg,rgba(0,0,0,.45) 0%,#000 28%)}.hero-shade{display:none}.hero-copy{max-width:none}}
@media(max-width:440px){.hero>img{height:290px}}

/* Clean Korean gothic typography keeps numerals and Hangul visually consistent. */
:root{--sans:"Pretendard","SUIT","Noto Sans KR","Apple SD Gothic Neo",Arial,sans-serif;--serif:Georgia,"Noto Serif KR",serif}body{font-family:var(--sans)}.hero h1,.section-head h2,.system h2,.contact h2,.director-grid h3,.profile-hero h1,.career-section h2,.teaching-section h2,.profile-contact h2,.blog-section h2,.info-hero h1,.info-section h2,.visit-grid h2,.visit-contact h2,.portrait-placeholder p,.profile-placeholder b{font-family:var(--serif);font-weight:700;letter-spacing:-.055em}.hero h1{font-weight:700;letter-spacing:-.06em}.hero h1 em,.profile-hero h1 em,.info-hero h1 em{font-style:normal}.hero-copy>p:not(.kicker){letter-spacing:-.025em}

/* Final hero: full photographic atmosphere with the calmer type scale. */
.hero{min-height:640px;background:var(--navy);border-bottom:0}.hero>img{inset:0;width:100%;height:100%;object-position:56% center;-webkit-mask-image:none;mask-image:none}.hero-shade{display:block;inset:0;width:100%;height:100%;background:linear-gradient(90deg,rgba(4,16,27,.96) 0%,rgba(4,16,27,.88) 27%,rgba(4,16,27,.62) 48%,rgba(4,16,27,.17) 72%,rgba(4,16,27,.04) 100%)}.hero-copy{max-width:58%;color:white;padding-right:clamp(20px,4vw,64px)}.hero-copy:before{background:var(--orange)}.hero-copy>p:not(.kicker){color:#d9e1e6}.hero .plain-link{color:white;border-bottom-color:rgba(255,255,255,.55)}.hero h1{font-size:clamp(42px,4.15vw,62px);line-height:1.2}.hero-index{color:white}
@media(max-width:900px){.hero{min-height:600px}.hero>img{width:100%;object-position:60% center;-webkit-mask-image:none;mask-image:none}.hero-shade{left:0;width:100%;background:linear-gradient(90deg,rgba(4,16,27,.96),rgba(4,16,27,.72) 55%,rgba(4,16,27,.14))}.hero-copy{max-width:66%}}
@media(max-width:660px){.hero{position:relative;padding:58px 24px;min-height:600px}.hero>img{position:absolute;inset:0;width:100%;height:100%;object-position:64% center;-webkit-mask-image:none;mask-image:none}.hero-shade{display:block;background:linear-gradient(90deg,rgba(4,16,27,.94),rgba(4,16,27,.62)),linear-gradient(0deg,rgba(4,16,27,.45),transparent)}.hero-copy{max-width:100%;padding:0;color:white}.hero-copy>p:not(.kicker){color:#d9e1e6}.hero .plain-link{color:white}.hero h1{font-size:40px}}