:root{--bg:#0b0b0c;--surface:#141416;--surface-2:#1c1c1f;--line:#26262a;--line-2:#2e2e33;--text:#f4f4f5;--text-2:#d4d4d8;--muted:#a1a1aa;--subtle:#8a8a93;--accent:#ff7a2f;--on-accent:#111113;--danger:#f87171;--ok:#4ade80;--font-display:"Gothic A1","Apple SD Gothic Neo",sans-serif;--font-body:"IBM Plex Sans KR","Apple SD Gothic Neo","Malgun Gothic",sans-serif;--font-mono:"IBM Plex Mono",ui-monospace,monospace}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font-body);-webkit-font-smoothing:antialiased;line-height:1.5}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit;color:inherit}img{max-width:100%}section[id]{scroll-margin-top:88px}summary{list-style:none;cursor:pointer}summary::-webkit-details-marker{display:none}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.container{max-width:1200px;margin:0 auto;padding:0 24px}.muted{color:var(--muted)}.subtle{color:var(--subtle)}.accent{color:var(--accent)}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}.site-header{position:-webkit-sticky;position:sticky;top:0;z-index:20;background:rgba(11,11,12,.94);border-bottom:1px solid #1f1f23;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.site-header .container{flex-wrap:wrap;gap:4px 36px;padding-top:8px;padding-bottom:8px}.logo,.site-header .container{display:flex;align-items:center}.logo{min-height:44px}.logo img{display:block;height:20px;width:auto}.main-nav{flex:1 1 auto;display:flex;flex-wrap:wrap;gap:0 26px;font-size:15px;font-weight:500}.main-nav a{padding:12px 0}.main-nav a:hover{color:#fff}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 22px;border-radius:999px;border:1px solid transparent;font-weight:700;font-size:15px;cursor:pointer;background:transparent}.btn-accent{background:var(--accent);color:var(--on-accent)}.btn-accent:hover{filter:brightness(1.06)}.btn-outline{border-color:#3a3a40;color:var(--text);font-weight:600}.btn-outline:hover{border-color:#55555c}.btn-block{display:flex;width:100%;border-radius:14px;min-height:56px;font-size:17px}.btn:disabled,.btn[aria-disabled=true]{background:var(--line);color:var(--subtle);cursor:not-allowed;filter:none}.btn-sm{min-height:36px;padding:0 14px;font-size:13px}.btn-danger{border-color:#7f1d1d;color:#fecaca}.eyebrow{margin:0 0 10px;font-family:var(--font-mono);font-size:12px;font-weight:600;letter-spacing:.14em;color:var(--accent)}.h1{font-size:32px}.h1,.h2{margin:0;font-family:var(--font-display);font-weight:800;letter-spacing:-.01em}.h2{font-size:28px}.h3{margin:0 0 20px;font-family:var(--font-display);font-weight:800;font-size:24px}.section-head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:16px;margin-bottom:28px}.link-more{display:inline-flex;align-items:center;gap:6px;padding:12px 0;font-size:15px;color:var(--muted)}.link-more:hover{color:var(--text)}.tabs{display:flex;flex-wrap:wrap;gap:4px;border-bottom:1px solid var(--line)}.tab{min-height:48px;padding:0 18px;margin-bottom:-1px;background:none;border:0;border-bottom:2px solid transparent;color:var(--muted);font-size:16px;font-weight:500;cursor:pointer}.tab[aria-selected=true]{color:var(--text);font-weight:700;border-bottom-color:var(--accent)}.chips{display:flex;flex-wrap:wrap;align-items:center;gap:8px}.chip{min-height:44px;padding:0 16px;border-radius:999px;background:var(--surface-2);border:1px solid #2a2a2e;color:var(--text);font-size:14px;font-weight:500;cursor:pointer}.chip[aria-pressed=true]{background:var(--text);color:var(--on-accent);border-color:var(--text);font-weight:700}.grid-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));grid-gap:20px;gap:20px}.card{display:flex;flex-direction:column;padding:10px;border-radius:20px;background:var(--surface);border:1px solid var(--line);transition:border-color .15s}.card:hover{border-color:#3a3a40}.card-body{padding:16px 10px 8px;display:flex;flex-direction:column;gap:8px;flex:1 1 auto}.card-type{font-size:13px;color:var(--accent)}.card-title,.card-type{margin:0;font-weight:600}.card-title{font-size:17px;line-height:1.45}.card-meta{margin:0;display:flex;flex-wrap:wrap;gap:4px 10px;font-size:14px;color:var(--muted)}.card-price{margin-top:auto;padding-top:14px;border-top:1px solid #232327}.price-note{margin:0;font-size:13px;color:var(--subtle)}.price-row{margin:4px 0 0;display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 8px}.price-main{font-size:22px;font-weight:700}.price-sub{font-size:13px;color:var(--subtle)}.star{display:inline-flex;align-items:center;gap:4px;color:var(--text-2)}.thumb{position:relative;overflow:hidden;aspect-ratio:16/10;border-radius:14px;padding:20px;display:flex;flex-direction:column;justify-content:space-between}.thumb-ring{position:absolute;border-radius:50%;border:1.5px solid rgba(255,255,255,.09)}.thumb-head{margin:0;position:relative;font-family:var(--font-display);font-weight:800;font-size:25px;line-height:1.25}.thumb-head span{color:var(--accent)}.thumb-lg{aspect-ratio:16/9;border-radius:24px;padding:44px}.thumb-lg .thumb-head{font-size:clamp(30px,4.2vw,50px);line-height:1.2}.thumb-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.badge{position:relative;align-self:flex-start;padding:5px 9px;border-radius:6px;font-family:var(--font-mono);font-size:12px;font-weight:600;letter-spacing:.04em}.badge-live{background:var(--accent);color:var(--on-accent)}.badge-vod{border:1px solid #45454c;background:rgba(0,0,0,.3);color:var(--text)}.badge-closed{background:#2a2a2e;color:var(--muted)}.panel{padding:28px;border-radius:20px;background:var(--surface);border:1px solid var(--line)}.band{background:#111113;border-top:1px solid #1f1f23;border-bottom:1px solid #1f1f23}.empty{padding:72px 24px;border-radius:20px;border:1px dashed #2a2a2e;text-align:center}.grid-instructors{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));grid-gap:16px;gap:16px}.portrait{position:relative;aspect-ratio:3/4;border-radius:18px;background:#1a1a1d;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;overflow:hidden}.portrait img{width:100%;height:100%;object-fit:cover}.portrait-initial{font-family:var(--font-display);font-weight:800;font-size:64px;color:#3a3a40}.tag-row{display:flex;flex-wrap:wrap;gap:8px}.tag{padding:6px 12px;border-radius:999px;background:#1f1f23;font-size:13px;color:var(--text-2)}.grid-columns{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));grid-gap:12px;gap:12px}.column-card{display:flex;flex-direction:column;gap:16px;min-height:160px;padding:24px;border-radius:18px;background:var(--surface);border:1px solid var(--line)}.column-card:hover{border-color:#3a3a40}.review{display:flex;flex-direction:column;gap:16px;padding:28px;border-radius:20px;background:var(--surface);border:1px solid var(--line)}.review p{margin:0;font-size:15px;line-height:1.8;color:var(--text-2)}.faq details{border-bottom:1px solid var(--line)}.faq summary{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:22px 4px;font-size:17px;font-weight:600}.faq details p{margin:0;padding:0 4px 22px;font-size:15px;line-height:1.75;color:var(--muted)}.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--subtle);margin-bottom:24px}.breadcrumb a{padding:10px 0;color:var(--muted)}.detail{display:flex;flex-direction:row-reverse;flex-wrap:wrap;align-items:flex-start;gap:40px}.detail-aside{flex:1 1 360px;min-width:0;position:-webkit-sticky;position:sticky;top:92px;padding:28px;border-radius:24px;background:var(--surface);border:1px solid #2a2a2e}.detail-main{flex:999 1 560px;min-width:0}.detail-section{padding-top:64px}.info-dl{margin:0;display:grid;grid-template-columns:auto 1fr;grid-gap:12px 16px;gap:12px 16px;font-size:14px}.info-dl dt{color:var(--subtle)}.info-dl dd{margin:0}.check-list{margin:0;padding:0;list-style:none;display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));grid-gap:12px;gap:12px}.check-list li{display:flex;align-items:flex-start;gap:12px;padding:20px;border-radius:16px;background:var(--surface);border:1px solid var(--line);font-size:15px;line-height:1.6}.check-list svg{flex:0 0 auto;margin-top:2px}.num-list{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:10px}.num-list li{display:flex;gap:20px;padding:22px 24px;border-radius:16px;background:var(--surface);border:1px solid var(--line)}.num-list .num{flex:0 0 auto;min-width:28px;font-family:var(--font-mono);font-size:14px;font-weight:600;color:var(--accent)}.num-list .t{margin:0;font-size:17px;font-weight:700}.num-list .d{margin:6px 0 0;font-size:14px;line-height:1.6;color:var(--muted)}.steps{margin:0;padding:0;list-style:none;display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));grid-gap:12px;gap:12px}.steps li{padding:24px 20px;border-radius:18px;background:var(--surface);border:1px solid var(--line)}.steps .num{margin:0;font-family:var(--font-mono);font-size:14px;font-weight:600;color:var(--accent)}.steps .t{margin:14px 0 0;font-size:16px;font-weight:700}.steps .d{margin:8px 0 0;font-size:14px;line-height:1.6;color:var(--muted)}.prose{font-size:16px;line-height:1.85;color:var(--text-2)}.detail-images{margin-top:40px;border-radius:16px;overflow:hidden}.detail-images img{display:block;width:100%;height:auto}.player{position:relative;aspect-ratio:16/9;border-radius:16px;overflow:hidden;background:#000}.player iframe{position:absolute;inset:0;width:100%;height:100%;border:0}.player-empty{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;text-align:center;padding:24px;color:var(--muted);font-size:15px}.watermark{position:absolute;z-index:2;pointer-events:none;font-size:13px;color:rgba(255,255,255,.28);white-space:nowrap;animation:wm-move 40s linear infinite}@keyframes wm-move{0%{top:8%;left:6%}25%{top:70%;left:55%}50%{top:20%;left:60%}75%{top:80%;left:10%}to{top:8%;left:6%}}.lesson-list{margin:0;padding:0;list-style:none;border:1px solid var(--line);border-radius:16px;overflow:hidden}.lesson-list li+li{border-top:1px solid var(--line)}.lesson-list .row,.lesson-list a{display:flex;align-items:center;gap:14px;padding:14px 18px;min-height:56px;font-size:15px}.lesson-list a:hover{background:#101012}.lesson-list a[aria-current=true]{background:var(--surface-2)}.lesson-list .no{flex:0 0 auto;min-width:26px;font-family:var(--font-mono);font-size:13px;font-weight:600;color:var(--accent)}.lesson-list .t{flex:1 1 auto;min-width:0}.lesson-list .meta{flex:0 0 auto;font-family:var(--font-mono);font-size:12px;color:var(--subtle)}.prose p{margin:0 0 12px}.mobile-cta{display:none}.field{display:flex;flex-direction:column;gap:8px;font-size:14px;color:var(--muted)}.input,.select,.textarea{width:100%;min-height:48px;padding:0 14px;border-radius:12px;background:var(--bg);border:1px solid var(--line-2);color:var(--text);font-size:15px}.textarea{padding:12px 14px;min-height:110px;line-height:1.6;resize:vertical}.input:focus,.select:focus,.textarea:focus{outline:none;border-color:var(--accent)}.input::placeholder,.textarea::placeholder{color:#71717a}.check{display:flex;align-items:flex-start;gap:10px;padding:6px 0;font-size:14px;line-height:1.5;color:var(--text-2);cursor:pointer}.check input{width:20px;height:20px;margin:0;accent-color:var(--accent);flex:0 0 auto}.alert{padding:14px 16px;border-radius:12px;font-size:14px;line-height:1.6}.alert-error{background:rgba(248,113,113,.1);border:1px solid rgba(248,113,113,.35);color:#fecaca}.alert-ok{background:rgba(74,222,128,.08);border:1px solid rgba(74,222,128,.3);color:#bbf7d0}.alert-info{background:var(--surface-2);border:1px solid var(--line-2);color:var(--text-2)}.site-footer{border-top:1px solid #1f1f23}.site-footer .container{padding-top:48px;padding-bottom:64px;display:flex;flex-direction:column;gap:20px}.footer-top{justify-content:space-between;align-items:center;gap:16px}.footer-nav,.footer-top{display:flex;flex-wrap:wrap}.footer-nav{gap:0 22px;font-size:14px}.footer-nav a{padding:12px 0;color:var(--muted)}.footer-info{margin:0;font-size:13px;line-height:1.9;color:var(--subtle)}.pill{display:inline-flex;align-items:center;padding:3px 9px;border-radius:999px;font-size:12px;font-weight:600;background:#26262a;color:var(--text-2);white-space:nowrap}.pill-paid{background:rgba(74,222,128,.14);color:#86efac}.pill-confirming,.pill-pending{background:rgba(250,204,21,.12);color:#fde68a}.pill-failed{background:rgba(248,113,113,.12);color:#fca5a5}.pill-canceled{background:#26262a;color:var(--muted)}.pill-open{background:rgba(255,122,47,.16);color:#ffb48a}.admin-bar{border-bottom:1px solid #1f1f23;background:#0e0e10}.admin-bar .container{display:flex;flex-wrap:wrap;align-items:center;gap:4px 24px;padding-top:8px;padding-bottom:8px}.admin-bar nav{display:flex;flex-wrap:wrap;gap:0 20px;flex:1 1 auto;font-size:15px}.admin-bar nav a{padding:12px 0;color:var(--muted)}.admin-bar nav a[aria-current=page]{color:var(--text);font-weight:700}.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:16px}.table{width:100%;border-collapse:collapse;font-size:14px}.table th{text-align:left;padding:12px 14px;color:var(--muted);font-weight:600;background:var(--surface);white-space:nowrap}.table td{padding:12px 14px;border-top:1px solid var(--line);vertical-align:top}.table tr:hover td{background:#101012}.form-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));grid-gap:16px;gap:16px}.form-grid .wide{grid-column:1/-1}.hint{font-size:12px;color:var(--subtle);line-height:1.5}@media (max-width:720px){.container{padding:0 16px}.h1{font-size:26px}.h2{font-size:24px}.thumb-lg{padding:24px;border-radius:18px}.detail-aside{position:static;padding:22px}.detail-section{padding-top:48px}.mobile-cta{display:flex;gap:10px;align-items:center;position:fixed;left:0;right:0;bottom:0;z-index:30;padding:12px 16px calc(12px + env(safe-area-inset-bottom));background:rgba(11,11,12,.96);border-top:1px solid #1f1f23}.mobile-cta .btn{flex:1 1 auto;min-height:52px;border-radius:14px}.has-mobile-cta{padding-bottom:96px}}