:root{
  color-scheme:light dark; --navy:#151a21; --h1:clamp(2.1rem,5.5vw,3.8rem); --red:#ce2b37; --green:#009246; --green-l:#2bbf74; --gold:#f2b705; --grn:#1f9d55; --blu:#2f6df6;
  --bg:#f4f6f9; --surface:#fff; --ink:#142033; --muted:#566275; --line:#d9dfe8;
}
@media (prefers-color-scheme:dark){:root{--bg:#0e1522;--surface:#16202f;--ink:#eef2f8;--muted:#a3afc2;--line:#2a3649}}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:70px}
body{margin:0;background:var(--bg);color:var(--ink);font:400 17px/1.6 "Public Sans",system-ui,-apple-system,"Segoe UI",sans-serif}
a{color:inherit}
:focus-visible{outline:3px solid var(--ink);outline-offset:3px;border-radius:4px}
.hero :focus-visible,.top :focus-visible,footer :focus-visible{outline-color:#fff}
.wrap{max-width:1100px;margin:0 auto;padding:0 22px}

/* header */
.top{position:fixed;top:0;left:0;right:0;inset:0 0 auto 0;z-index:30;background:rgba(21,26,33,.9);backdrop-filter:blur(8px);color:#fff}
.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:60px}
.brand{font-weight:800;text-decoration:none;display:flex;align-items:center;gap:10px}
.logo{height:48px;width:auto;display:block}
nav{display:flex;gap:4px;flex-wrap:wrap}
nav a{text-decoration:none;padding:8px 11px;border-radius:8px;font-weight:500;color:#dde2ea}
nav a:hover{background:rgba(255,255,255,.12);color:#fff}

/* hero with crossfading photos */
.hero{position:relative;min-height:92vh;display:flex;align-items:flex-end;color:#fff;background:var(--navy);overflow:hidden}
.slides{position:absolute;top:0;left:0;right:0;bottom:0;inset:0}
.slides i{position:absolute;top:0;left:0;right:0;bottom:0;inset:0;background-size:cover;background-position:center;opacity:0;animation:fade 45s infinite}
.slides i:nth-child(1){opacity:1}
.slides i:nth-child(2){animation-delay:5s}
.slides i:nth-child(3){animation-delay:10s}
.slides i:nth-child(4){animation-delay:15s}
.slides i:nth-child(5){animation-delay:20s}
.slides i:nth-child(6){animation-delay:25s}
.slides i:nth-child(7){animation-delay:30s}
.slides i:nth-child(8){animation-delay:35s}
.slides i:nth-child(9){animation-delay:40s}
@keyframes fade{0%{opacity:0}2%{opacity:1}11.1%{opacity:1}13.1%{opacity:0}100%{opacity:0}}
.slides i{will-change:transform,opacity;animation-name:fade,kb1;animation-timing-function:linear}
.slides i:nth-child(4n+2){animation-name:fade,kb2}
.slides i:nth-child(4n+3){animation-name:fade,kb3}
.slides i:nth-child(4n+4){animation-name:fade,kb4}
@keyframes kb1{0%{transform:scale(1)}13.5%,100%{transform:scale(1.18)}}
@keyframes kb2{0%{transform:scale(1.16) translate(2.5%,1.5%)}13.5%,100%{transform:scale(1.04) translate(-1%,0)}}
@keyframes kb3{0%{transform:scale(1.05) translate(-3%,0)}13.5%,100%{transform:scale(1.15) translate(3%,-1%)}}
@keyframes kb4{0%{transform:scale(1.14) translate(0,2%)}13.5%,100%{transform:scale(1.03) translate(0,-2%)}}
@keyframes up{from{opacity:0;transform:translateY(28px)}to{opacity:1;transform:none}}
.hero .wrap>*{animation:up .9s cubic-bezier(.2,.7,.2,1) both}
.hero .wrap>*:nth-child(2){animation-delay:.12s}.hero .wrap>*:nth-child(3){animation-delay:.24s}.hero .wrap>*:nth-child(4){animation-delay:.36s}
.gal img{transition:transform .7s cubic-bezier(.2,.7,.2,1)}
.gal figure:hover img{transform:scale(1.07)}
.js .rv{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.7,.2,1)}
.js .rv.in{opacity:1;transform:none}
.hero::after{content:"";position:absolute;top:0;left:0;right:0;bottom:0;inset:0;background:linear-gradient(180deg,rgba(21,26,33,.55) 0%,rgba(21,26,33,.35) 35%,rgba(21,26,33,.92) 100%)}
.hero .wrap{position:relative;z-index:2;padding-top:120px;padding-bottom:56px}
.hg{display:flex;gap:clamp(16px,3.5vw,36px);margin:0 0 26px}
.hg div{display:flex;flex-direction:column;--k:#fff}
.hg div:nth-child(1){--k:var(--green-l)} .hg div:nth-child(3){--k:var(--red)}
.hg .g{font:900 clamp(56px,10vw,104px)/1 "Noto Sans KR",sans-serif;color:var(--k)}
.hg small{margin-top:8px;padding-top:6px;border-top:4px solid var(--k);font-size:.82rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:#e8ecf2}
.place{display:flex;align-items:center;gap:clamp(14px,2.5vw,26px);margin:0 0 16px}
.place h1{margin:0}
.hlogo{flex:none;width:calc(var(--h1)*2.16);aspect-ratio:1;height:auto;border-radius:50%;background:#fff;box-shadow:0 8px 28px rgba(0,0,0,.45)}
@media (max-width:520px){.place{flex-direction:column;align-items:flex-start}.hlogo{width:84px}}
h1{font-size:var(--h1);line-height:1.08;margin:0 0 16px;max-width:17ch;font-weight:800}
.lead{font-size:1.2rem;max-width:54ch;margin:0 0 28px;color:#e8ecf2}
.btns{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-block;padding:14px 22px;border-radius:10px;font-weight:700;text-decoration:none;background:var(--red);color:#fff;border:2px solid var(--red)}
.btn.alt{background:transparent;border-color:#fff}
.call{display:inline-flex;align-items:center;gap:10px}
.ico{height:30px;width:30px;padding:5px;background:#fff;border-radius:50%;object-fit:contain}
.btn:hover{filter:brightness(1.1)}
.belts{display:flex;height:10px}
.belts i{flex:1}

/* sections */
section{padding:64px 0}
section.alt{background:var(--surface)}
h2{font-size:clamp(1.7rem,3.6vw,2.4rem);line-height:1.15;margin:0 0 8px}
.sub{color:var(--muted);margin:0 0 32px;max-width:60ch}
.grid{display:grid;gap:22px;grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}

/* course cards, coloured like belts */
.card{background:var(--surface);border:1px solid var(--line);border-top:10px solid var(--c);border-radius:14px;padding:24px}
.alt .card{background:var(--bg)}
.card h3{margin:0;font-size:1.35rem}
.card .age{color:var(--muted);margin:0 0 14px}
.card dl{margin:0}
.card dt{font-weight:700;margin-top:12px}
.card dd{margin:0;color:var(--muted);font-variant-numeric:tabular-nums}
.card dd b{color:var(--ink)}
.plus{margin-top:22px;display:flex;gap:16px;align-items:center;flex-wrap:wrap;background:var(--navy);color:#fff;border-radius:14px;padding:22px 26px;border-left:10px solid rgba(255,255,255,.4)}
.plus b{font-size:1.15rem}

/* gallery */
.gal{display:grid;gap:10px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.gal figure{margin:0;min-height:170px;aspect-ratio:4/3;border-radius:12px;overflow:hidden;background:linear-gradient(135deg,var(--navy),#2b3442)}
.gal img{width:100%;height:100%;object-fit:cover;display:block}

/* staff */
.director{display:flex;gap:20px;align-items:center;background:var(--navy);color:#fff;border-radius:16px;padding:22px;margin-bottom:22px;flex-wrap:wrap}
.director .ph{width:120px;height:120px;border-width:4px}
.director span{color:#cdd5e0}
.cred{list-style:none;margin:14px 0 0;padding:0}
.cred li{position:relative;padding-left:18px;margin:0 0 4px;color:#fff}
.cred li::before{content:"";position:absolute;left:0;top:.62em;width:8px;height:8px;border-radius:50%;background:var(--gold)}
.staff{display:grid;gap:18px;grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}
.person{display:flex;gap:14px;align-items:center}
.ph{flex:none;width:76px;height:76px;border-radius:50%;overflow:hidden;background:var(--navy);border:3px solid #fff;box-shadow:0 0 0 1px var(--line);position:relative;display:grid;place-items:center;color:#fff;font-weight:800}
.ph img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.person b{display:block}
.person span{color:var(--muted);font-size:.95rem}

/* philosophy */
.philo{display:grid;gap:34px 48px;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);align-items:stretch}
.philo .sub{margin-bottom:22px}
@media (max-width:760px){.philo{grid-template-columns:1fr}}
.explore{display:grid;gap:12px;grid-auto-rows:1fr;margin-top:6px}
.tile{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:18px 20px;border:1px solid var(--line);border-left:8px solid var(--ink);border-radius:0 14px 14px 0;background:var(--bg);text-decoration:none;transition:transform .25s,background .25s}
.tile b{display:block;font-size:1.1rem}
.tile span{color:var(--muted);font-size:.95rem}
.tile i{font-style:normal;font-size:1.6rem;transition:transform .25s}
.tile:hover{transform:translateX(4px)}
.tile:hover i{transform:translateX(5px)}
.philo p{margin:0 0 14px;max-width:62ch}
.vals{display:grid;gap:18px;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));grid-column:1/-1}
.val{position:relative;overflow:hidden;min-height:200px;padding:24px;border-radius:18px;background:var(--surface);border:1px solid var(--line);background:color-mix(in srgb,var(--c) 15%,var(--surface));border:1px solid color-mix(in srgb,var(--c) 45%,var(--line))}
.val .k{position:absolute;right:10px;top:-6px;font:900 clamp(80px,12vw,118px)/1 "Noto Sans KR",sans-serif;font-style:normal;color:var(--c);opacity:.3;pointer-events:none}
.val small{display:inline-block;margin-bottom:34px;padding:3px 10px;border-radius:99px;background:var(--c);color:#111;font-weight:700;font-size:.78rem;letter-spacing:.05em;text-transform:uppercase}
.val b{display:block;font-size:1.3rem;margin-bottom:4px;position:relative}
.val span{color:var(--muted);position:relative}
.links{display:flex;gap:8px 22px;flex-wrap:wrap;margin:18px 0 0;padding:0;list-style:none}

/* contacts */
.box{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:24px}
.box h3{margin:0 0 6px}
.box p{margin:0 0 10px;color:var(--muted)}
.box a{font-weight:700}
.soc{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px}
.soc a{display:inline-flex;align-items:center;gap:14px;padding:12px 22px 12px 12px;border:1px solid var(--line);border-radius:99px;background:var(--surface);text-decoration:none;transition:transform .25s,box-shadow .25s}
.soc a:hover{transform:translateY(-3px);box-shadow:0 10px 24px rgba(0,0,0,.18)}
.soc .ic{display:grid;place-items:center;width:46px;height:46px;border-radius:50%;color:#fff}
.soc .fb .ic{background:#1877f2}
.soc .ig .ic{background:linear-gradient(45deg,#f9a03f,#dd2a7b 55%,#8134af)}
.soc small{display:block;color:var(--muted);font-size:.78rem;line-height:1.2}
.soc b{display:block;font-size:1.05rem;line-height:1.25}
@media (max-width:520px){
  .soc{flex-wrap:nowrap;gap:10px}
  .soc a{flex:1 1 0;min-width:0;gap:9px;padding:9px 12px 9px 9px;justify-content:flex-start}
  .soc .ic{width:38px;height:38px;flex:none}
  .soc .ic svg{width:20px;height:20px}
  .soc small{font-size:.7rem}
  .soc b{font-size:.95rem}
}
.stats{background:var(--navy);color:#fff;padding:44px 0 48px}
.stats .kicker{margin:0 0 22px;text-transform:uppercase;letter-spacing:.1em;font-size:.82rem;font-weight:700;color:#cdd5e0}
.sg{display:grid;gap:clamp(12px,3vw,32px);grid-template-columns:repeat(3,minmax(0,1fr))}
.st{border-top:5px solid var(--c);padding-top:14px}
.st b{display:block;font-size:clamp(2.6rem,9vw,4.8rem);line-height:1;font-weight:800;font-variant-numeric:tabular-nums}
.st span{display:block;margin-top:8px;color:#dde2ea;font-weight:500}
@media (max-width:520px){.st span{font-size:.88rem}}
footer{background:var(--navy);color:#cdd5e0;padding:36px 0 44px;font-size:.92rem;padding-bottom:calc(44px + env(safe-area-inset-bottom,0px))}
footer p{margin:0 0 8px}
.fl{margin:0 0 14px}
.fl p{margin:0 0 3px}
.fiscal{display:flex;flex-wrap:wrap;gap:3px 24px}
.fiscal span{white-space:nowrap}
footer a{color:#fff}
@media (prefers-reduced-motion:reduce){.slides i:nth-child(n){animation:none}.slides i:nth-child(n+2){display:none}.hero .wrap>*{animation:none}.gal img{transition:none}html{scroll-behavior:auto}}
@media (max-width:940px){.brand span{display:none}}
.burger{display:none;flex:none;width:44px;height:44px;border:0;background:transparent;border-radius:10px;cursor:pointer;position:relative;color:#fff}
.burger span{position:absolute;left:11px;right:11px;height:2px;background:#fff;border-radius:2px;transition:transform .25s,opacity .2s,top .25s}
.burger span:nth-child(1){top:15px}.burger span:nth-child(2){top:21px}.burger span:nth-child(3){top:27px}
.burger[aria-expanded="true"] span:nth-child(1){top:21px;transform:rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){top:21px;transform:rotate(-45deg)}
@media (max-width:720px){
  .burger{display:block}
  nav{position:absolute;top:100%;left:0;right:0;flex-direction:column;flex-wrap:nowrap;gap:0;padding:6px 22px 14px;background:rgba(21,26,33,.97);backdrop-filter:blur(8px);border-bottom:1px solid rgba(255,255,255,.14);opacity:0;visibility:hidden;transform:translateY(-8px);transition:opacity .2s,transform .2s,visibility .2s}
  nav.open{opacity:1;visibility:visible;transform:none}
  nav a{padding:15px 8px;font-size:1.05rem;border-radius:0;border-bottom:1px solid rgba(255,255,255,.09)}
  nav a:last-child{border-bottom:0}
}

/* Banner cookie */
.cc{position:fixed;left:12px;right:12px;bottom:calc(12px + env(safe-area-inset-bottom,0px));z-index:60;max-width:540px;padding:20px 22px 18px;background:var(--surface);color:var(--ink);border:1px solid var(--line);border-radius:16px;box-shadow:0 18px 50px rgba(0,0,0,.35)}
.cc[hidden]{display:none}
.cc p{margin:0 0 10px;font-size:.95rem;line-height:1.5}
.cc p b{font-size:1.05rem}
.cc a{font-weight:700}
.cc-x{position:absolute;top:6px;right:8px;width:40px;height:40px;border:0;background:transparent;color:var(--ink);font-size:1.6rem;line-height:1;cursor:pointer;border-radius:10px}
.cc-b{display:flex;gap:10px;margin-top:14px}
.cc-b button{flex:1;padding:12px 16px;border-radius:10px;border:2px solid var(--ink);background:transparent;color:var(--ink);font:700 1rem "Public Sans",system-ui,sans-serif;cursor:pointer}
.cc-b button:hover{background:var(--ink);color:var(--bg)}
@media (min-width:640px){.cc{left:20px;right:auto;bottom:20px}}