:root{--ink:#211d1e;--paper:#fff;--line:#2a2728;--muted:#6d6868;--rust:#b66f35;--strip-h:68px;--nav-h:74px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#fff;color:var(--ink);font-family:Arial,"Apple SD Gothic Neo","Noto Sans KR",sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}.skip{position:fixed;left:12px;top:10px;z-index:100;transform:translateY(-160%);background:#fff;padding:10px 14px;border:2px solid #111}.skip:focus{transform:none}
.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}
.site-shell{width:calc(100vw - 32px);margin:16px auto 42px;border:1px solid rgba(33,29,30,.7);background:var(--paper)}
.brand-strip{display:grid;grid-template-columns:290px 1fr;height:var(--strip-h);border-bottom:1px solid rgba(33,29,30,.7);overflow:hidden}.brand-title{display:flex;align-items:center;padding:0 28px;font-size:32px;letter-spacing:-.04em;background:var(--rust);white-space:nowrap}.mosaic{display:grid;grid-template-columns:1.2fr .65fr .55fr .6fr .85fr .55fr 3.4fr;height:100%;background:#797a72}.mosaic span:nth-child(1){background:#4f8c7f}.mosaic span:nth-child(2){background:#b3b298;align-self:end;height:44%}.mosaic span:nth-child(3){background:#4a4d4d;align-self:end;height:44%}.mosaic span:nth-child(4){background:#747d70;align-self:end;height:44%}.mosaic span:nth-child(5){background:#8d9280}.mosaic span:nth-child(6){background:#85877f}.mosaic span:nth-child(7){background:#777a75}
.primary-nav{display:grid;grid-template-columns:minmax(166px,15%) minmax(250px,23%) minmax(178px,16%) 1fr;height:var(--nav-h);background:var(--ink);color:#fff}.nav-link{display:flex;align-items:center;gap:8px;padding:0 28px;font-size:clamp(20px,1.7vw,27px);letter-spacing:-.035em;white-space:nowrap}.nav-link .num{align-self:flex-start;margin-top:18px;font-size:13px;line-height:1}.nav-link.active{background:#fff;color:var(--ink)}.nav-link:hover,.nav-link:focus-visible{outline:2px solid #fff;outline-offset:-4px}.nav-spacer{background:var(--ink)}
.hero{position:relative;min-height:calc(100vh - var(--strip-h) - var(--nav-h) - 34px);overflow:hidden;background:#6e655d}.hero video,.hero .video-fallback{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.hero video{filter:saturate(.82) contrast(.94)}.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(0,0,0,.10),rgba(0,0,0,.02) 55%,rgba(0,0,0,.08));pointer-events:none}.hero-copy{position:relative;z-index:2;display:inline-flex;flex-direction:column;align-items:flex-start;margin:32px 0 0 42px;font-size:clamp(22px,2.2vw,32px);line-height:1.04;letter-spacing:-.04em}.hero-copy span{display:inline-block;padding:3px 6px 2px;background:rgba(255,255,255,.96);box-shadow:0 0 0 1px rgba(33,29,30,.9)}.hero-copy .en{margin-top:4px;font-size:.9em}.sound-toggle{position:absolute;z-index:3;right:20px;bottom:18px;border:1px solid rgba(255,255,255,.8);color:#fff;background:rgba(33,29,30,.48);padding:10px 12px;cursor:pointer;font-size:12px}.sound-toggle:focus-visible{outline:3px solid #fff;outline-offset:3px}
.content-page{min-height:calc(100vh - var(--strip-h) - var(--nav-h) - 34px);padding:30px 36px 58px}.about-grid{width:min(820px,100%);display:grid;gap:46px}.pill{display:inline-flex;border:1px solid var(--ink);border-radius:999px;padding:2px 9px 1px;margin-bottom:10px;font-size:18px;line-height:1.2}.copy-list{margin:0;font-size:clamp(18px,1.6vw,22px);line-height:1.32;letter-spacing:-.03em}.inline-link{display:inline-block;margin-top:12px;font-size:18px;border-bottom:1px solid var(--ink);padding-bottom:2px}
.discography-page{background:var(--ink);color:#fff;min-height:calc(100vh - var(--strip-h) - var(--nav-h) - 34px)}.release-grid{display:grid;grid-template-columns:repeat(4,1fr)}.release-card{min-width:0}.cover{position:relative;aspect-ratio:1/.98;overflow:hidden}.cover::before,.cover::after{content:"";position:absolute;left:-15%;top:50%;width:130%;height:2px;background:rgba(255,255,255,.95);transform-origin:50%}.cover::before{transform:rotate(45deg)}.cover::after{transform:rotate(-45deg)}.cover-label{position:absolute;z-index:2;left:50%;top:50%;transform:translate(-50%,-50%);font-size:22px;background:var(--ink);padding:2px 8px}.release-title{position:absolute;z-index:3;left:0;bottom:9px;min-width:78px;max-width:calc(100% - 14px);padding:2px 7px;background:#fff;color:var(--ink);font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.lesson-page{padding:34px 34px 0;background:#fff}.lesson-tabs{display:flex;gap:34px;margin-bottom:36px;font-size:23px;letter-spacing:-.04em}.lesson-tab{padding:0 0 3px;border:0;background:transparent;cursor:pointer;color:inherit}.lesson-tab.active{border-bottom:1px solid var(--ink)}.lesson-tab:focus-visible{outline:2px solid var(--ink);outline-offset:5px}.lesson-section{display:grid;grid-template-columns:minmax(230px,27%) 1fr;gap:clamp(36px,6vw,100px);min-height:560px;padding-bottom:36px}.lesson-aside{font-size:clamp(19px,1.8vw,24px);line-height:1.28;letter-spacing:-.035em}.lesson-aside p{margin:0 0 26px}.lesson-main{font-size:clamp(17px,1.45vw,20px);line-height:1.4;letter-spacing:-.03em}.curriculum-item{margin:0 0 27px}.curriculum-item h3,.profile-title{margin:0;font-size:20px;line-height:1.25}.curriculum-item p{margin:3px 0 0}.lesson-divider{border-top:1px solid rgba(33,29,30,.65)}.lesson-profile{display:grid;grid-template-columns:minmax(230px,27%) 1fr;gap:clamp(36px,6vw,100px);min-height:600px;padding:34px 0 80px}.profile-body{font-size:clamp(17px,1.45vw,20px);line-height:1.35;letter-spacing:-.03em}.profile-body p{margin:0 0 14px}
@media(max-width:860px){:root{--strip-h:58px;--nav-h:60px}.site-shell{width:calc(100vw - 24px);margin-top:12px}.brand-strip{grid-template-columns:210px 1fr}.brand-title{font-size:24px;padding:0 18px}.primary-nav{grid-template-columns:repeat(3,1fr)}.nav-spacer{display:none}.nav-link{justify-content:center;padding:0 10px;font-size:18px}.nav-link .num{font-size:10px;margin-top:14px}.hero{min-height:calc(100svh - var(--strip-h) - var(--nav-h) - 12px)}.hero-copy{margin:24px 0 0 20px;font-size:19px}.content-page{padding:24px 22px 44px}.copy-list{font-size:17px}.release-grid{grid-template-columns:repeat(2,1fr)}.lesson-page{padding:26px 22px 0}.lesson-tabs{gap:22px;font-size:19px;overflow-x:auto}.lesson-section,.lesson-profile{grid-template-columns:1fr;gap:24px;min-height:auto}.lesson-aside{font-size:17px}.lesson-main,.profile-body{font-size:16px}}
@media(max-width:520px){.site-shell{width:100%;margin:0;border-left:0;border-right:0}.brand-strip{grid-template-columns:160px 1fr}.brand-title{font-size:20px;padding:0 14px}.nav-link{font-size:15px;gap:4px}.nav-link .num{display:none}.hero{min-height:calc(100svh - var(--strip-h) - var(--nav-h))}.hero-copy{margin-left:16px;max-width:calc(100% - 32px)}.hero-copy span{white-space:normal}.release-grid{grid-template-columns:1fr 1fr}.lesson-tabs{justify-content:space-between;gap:12px}.lesson-tab{font-size:17px}}
@media(min-width:1800px){.site-shell{width:calc(100vw - 48px)}.brand-strip{grid-template-columns:360px 1fr}.brand-title{font-size:38px}.primary-nav{height:82px}.hero{min-height:calc(100vh - var(--strip-h) - 82px - 34px)}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.hero video{display:none}.hero{background:url('/assets/hero-poster.svg') center/cover no-repeat}}
.hero-copy{font-weight:400}.brand-title{color:#000}