/* =========================================================
   탑에듀프렙 공통 디자인 시스템
   (index__2_.html 원본 토큰을 기준으로 전 페이지 통일)
   ========================================================= */
:root{
  --bg:#FAFAFC; --ink:#14131A; --ink-soft:#5D5A68; --ink-faint:#8B8896;
  --primary:#5B3DF5; --pop:#FF4470; --paper:#fff;
  --ease:cubic-bezier(.16,1,.3,1);
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  background:var(--bg); color:var(--ink);
  font-family:'PretendardVariable','Pretendard',-apple-system,sans-serif;
  line-height:1.6; -webkit-font-smoothing:antialiased;
  overflow-x:hidden; transition:background-color .7s var(--ease), color .7s var(--ease);
}
a{color:inherit;text-decoration:none;}
svg{display:block;}
img{max-width:100%;display:block;}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px;}
section{position:relative;padding:130px 0;}
:focus-visible{outline:2.5px solid var(--primary);outline-offset:3px;border-radius:4px;}

/* custom cursor */
body.cursor-ready{cursor:none;}
body.cursor-ready a, body.cursor-ready button{cursor:none;}
#cur-dot,#cur-ring{position:fixed;top:0;left:0;pointer-events:none;z-index:999;border-radius:50%;transform:translate(-9999px,-9999px);}
#cur-dot{width:7px;height:7px;background:currentColor;}
#cur-ring{width:36px;height:36px;border:1.4px solid currentColor;transition:width .25s var(--ease),height .25s var(--ease),opacity .25s;mix-blend-mode:difference;background:#fff;}
#cur-ring.hover{width:64px;height:64px;}
@media (pointer:coarse){ #cur-dot,#cur-ring{display:none !important;} }

/* progress */
#progress{position:fixed;top:0;left:0;height:3px;background:var(--primary);z-index:998;width:0%;}

/* floating capsule nav */
header{
  position:fixed;top:18px;left:50%;transform:translateX(-50%);z-index:200;
  background:rgba(255,255,255,0.9);backdrop-filter:blur(16px) saturate(160%);
  border-radius:28px;box-shadow:0 8px 30px rgba(20,19,26,0.08);
  padding:9px 10px 9px 20px;display:flex;align-items:center;gap:6px;
  max-width:calc(100vw - 24px);
}
.logo{font-weight:800;font-size:0.95rem;letter-spacing:-0.02em;color:var(--ink);margin-right:8px;white-space:nowrap;}
nav.main-nav{position:relative;display:flex;align-items:center;}
.nav-list{display:none;list-style:none;align-items:center;gap:2px;position:relative;}
.nav-list>li{position:relative;}
.nav-list>li>a, .nav-list>li>button.nav-top{
  display:inline-flex;align-items:center;gap:4px;font-size:0.86rem;font-weight:600;color:var(--ink-soft);
  padding:9px 12px;border-radius:999px;background:none;border:none;font-family:inherit;cursor:pointer;
  transition:background .25s,color .25s;
}
.nav-list>li>a:hover, .nav-list>li>button.nav-top:hover, .nav-list>li.open>button.nav-top{background:#F1EEFE;color:var(--primary);}
.nav-list>li>a[aria-current="page"]{color:var(--primary);}
.chev{width:9px;height:9px;transition:transform .25s var(--ease);}
.nav-list>li.open .chev{transform:rotate(180deg);}
.dropdown{
  position:absolute;top:calc(100% + 12px);left:50%;transform:translateX(-50%) translateY(-6px);
  background:#fff;border-radius:18px;box-shadow:0 20px 50px rgba(20,19,26,0.16);
  padding:10px;min-width:230px;display:grid;gap:2px;
  opacity:0;pointer-events:none;transition:opacity .22s var(--ease), transform .22s var(--ease);
}
.nav-list>li.open .dropdown{opacity:1;pointer-events:auto;transform:translateX(-50%) translateY(0);}
.dropdown a{display:block;padding:11px 14px;border-radius:12px;font-size:0.86rem;font-weight:600;color:var(--ink);}
.dropdown a:hover{background:var(--bg);color:var(--primary);}
.dropdown a small{display:block;font-weight:500;color:var(--ink-faint);font-size:0.76rem;margin-top:2px;}
.phone-link{font-size:0.85rem;font-weight:600;color:var(--ink-soft);display:none;padding:0 4px;}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 20px;border-radius:999px;font-size:0.86rem;font-weight:700;white-space:nowrap;}
.btn-primary{background:var(--ink);color:#fff;}
.btn-ghost{border:1.5px solid var(--ink);color:var(--ink);}

/* mobile nav toggle */
.nav-burger{display:inline-flex;width:38px;height:38px;border-radius:50%;border:none;background:none;align-items:center;justify-content:center;cursor:pointer;}
.nav-burger span, .nav-burger::before, .nav-burger::after{content:'';display:block;width:18px;height:1.6px;background:var(--ink);border-radius:2px;}
.nav-burger{position:relative;}
.nav-burger span{position:absolute;}
.nav-burger::before{position:absolute;transform:translateY(-6px);}
.nav-burger::after{position:absolute;transform:translateY(6px);}
.mobile-sheet{
  position:fixed;inset:0;background:rgba(20,19,26,.45);z-index:250;opacity:0;pointer-events:none;transition:opacity .3s var(--ease);
}
.mobile-sheet.open{opacity:1;pointer-events:auto;}
.mobile-panel{
  position:absolute;top:0;right:0;height:100%;width:min(84vw,360px);background:#fff;padding:100px 26px 40px;
  transform:translateX(100%);transition:transform .35s var(--ease);overflow-y:auto;
}
.mobile-sheet.open .mobile-panel{transform:translateX(0);}
.mobile-panel .m-group{margin-bottom:26px;}
.mobile-panel .m-title{font-size:0.78rem;font-weight:800;color:var(--ink-faint);text-transform:uppercase;letter-spacing:.06em;margin-bottom:10px;}
.mobile-panel a{display:block;padding:12px 0;font-size:1.02rem;font-weight:700;border-bottom:1px solid rgba(20,19,26,.08);}
.mobile-close{position:absolute;top:22px;right:22px;width:40px;height:40px;border-radius:50%;border:1.5px solid rgba(20,19,26,.15);background:#fff;font-size:1.2rem;cursor:pointer;}

@media (min-width:960px){
  .nav-list{display:flex;}
  .nav-burger, .mobile-sheet{display:none;}
}

/* magnetic wrapper */
.magnetic{display:inline-block;transition:transform .25s var(--ease);}

/* hero (home) */
.hero{min-height:100vh;display:flex;align-items:center;padding-top:160px;}
.eyebrow{display:inline-flex;gap:8px;font-size:0.82rem;font-weight:700;color:var(--primary);background:#EDE8FF;padding:7px 14px;border-radius:999px;margin-bottom:32px;}
.hero h1{font-size:clamp(2.6rem,9vw,6.4rem);font-weight:800;letter-spacing:-0.035em;line-height:1.04;}
.hero h1 .line{display:block;overflow:hidden;}
.hero h1 .line b{display:block;font-weight:800;transform:translateY(112%);animation:up .9s var(--ease) forwards;}
.hero h1 .line:nth-child(2) b{animation-delay:.12s;color:var(--primary);}
.hero h1 .line:nth-child(3) b{animation-delay:.24s; margin-left:8vw;}
@keyframes up{to{transform:translateY(0);}}
.hero p.lead{font-size:clamp(1rem,2vw,1.15rem);color:var(--ink-soft);max-width:440px;margin:34px 0 0;opacity:0;animation:fade .8s var(--ease) forwards;animation-delay:.55s;}
@keyframes fade{to{opacity:1;}}
.hero-ctas{display:flex;gap:12px;flex-wrap:wrap;margin-top:34px;opacity:0;animation:fade .8s var(--ease) forwards;animation-delay:.7s;}

/* sub-page hero (subject pages, curriculum, 404) */
.page-hero{padding:200px 0 80px;}
.page-hero .eyebrow{margin-bottom:26px;}
.page-hero h1{font-size:clamp(2.1rem,6vw,3.6rem);font-weight:800;letter-spacing:-0.03em;line-height:1.12;}
.page-hero p.lead{font-size:clamp(1rem,2vw,1.12rem);color:var(--ink-soft);max-width:560px;margin-top:22px;}
.breadcrumb{font-size:0.82rem;color:var(--ink-faint);margin-bottom:18px;}
.breadcrumb a{color:var(--ink-faint);}
.breadcrumb a:hover{color:var(--primary);}

/* marquee */
.marquee{overflow:hidden;padding:20px 0;border-top:1px solid rgba(20,19,26,.1);border-bottom:1px solid rgba(20,19,26,.1);}
.marquee-track{display:flex;white-space:nowrap;animation:scroll 22s linear infinite;}
.marquee-track span{font-size:1.1rem;font-weight:700;padding:0 22px;color:var(--ink-soft);}
.marquee-track span.pop{color:var(--primary);}
@keyframes scroll{from{transform:translateX(0);}to{transform:translateX(-50%);}}
.marquee:hover .marquee-track{animation-play-state:paused;}

/* reveal */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .8s var(--ease),transform .8s var(--ease);}
.reveal.is-visible{opacity:1;transform:translateY(0);}
.stagger>*{opacity:0;transform:translateY(20px);transition:opacity .7s var(--ease),transform .7s var(--ease);}
.stagger.is-visible>*{opacity:1;transform:translateY(0);}
.stagger.is-visible>*:nth-child(1){transition-delay:.03s;}
.stagger.is-visible>*:nth-child(2){transition-delay:.13s;}
.stagger.is-visible>*:nth-child(3){transition-delay:.23s;}
.stagger.is-visible>*:nth-child(4){transition-delay:.33s;}

/* manifesto (vivid full section) */
.manifesto{color:#fff;clip-path:polygon(0 4%,100% 0,100% 96%,0 100%);}
.manifesto p{font-size:clamp(1.3rem,3.4vw,2.1rem);font-weight:700;letter-spacing:-0.015em;max-width:760px;margin-bottom:26px;opacity:.55;}
.manifesto p.on{opacity:1;}
.manifesto p.final{font-weight:800;opacity:1;}

/* loop */
.loop-section .grid{display:grid;grid-template-columns:0.95fr 1.05fr;gap:60px;align-items:center;}
.loop-svg-wrap svg{width:100%;height:auto;}
.node{opacity:0;transform:scale(.6);transform-box:fill-box;transform-origin:center;transition:opacity .5s var(--ease),transform .5s var(--ease);}
.in-view .node{opacity:1;transform:scale(1);}
.in-view .node:nth-of-type(1){transition-delay:.15s;} .in-view .node:nth-of-type(2){transition-delay:.35s;}
.in-view .node:nth-of-type(3){transition-delay:.55s;} .in-view .node:nth-of-type(4){transition-delay:.75s;}
.in-view .node:nth-of-type(5){transition-delay:.95s;}
.step{display:flex;gap:20px;padding:20px 0;border-bottom:1px solid rgba(20,19,26,.1);}
.step .n{font-weight:800;font-size:1.25rem;color:var(--primary);width:30px;flex-shrink:0;}
.step h3{font-size:1.02rem;font-weight:700;margin-bottom:3px;}
.step p{color:var(--ink-soft);font-size:0.9rem;}
.steps-list{border-top:1px solid rgba(20,19,26,.1);}

h2.h{font-size:clamp(1.7rem,3.6vw,2.7rem);font-weight:800;letter-spacing:-0.02em;margin-bottom:16px;}
p.sub{font-size:1.02rem;color:var(--ink-soft);max-width:560px;margin-bottom:48px;}

/* horizontal showcase */
.showcase-scroll{display:flex;gap:18px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:8px;margin:0 -24px;padding-left:24px;padding-right:24px;-webkit-overflow-scrolling:touch;}
.showcase-scroll::-webkit-scrollbar{display:none;}
.card{scroll-snap-align:start;flex:0 0 78%;max-width:340px;border-radius:24px;padding:34px 28px;transition:transform .5s var(--ease);}
.card:hover{transform:translateY(-8px);}
.card .tag{font-size:0.76rem;font-weight:800;text-transform:uppercase;letter-spacing:.05em;margin-bottom:16px;display:inline-block;}
.card h3{font-size:1.5rem;font-weight:800;margin-bottom:12px;letter-spacing:-0.01em;}
.card p{font-size:0.92rem;line-height:1.6;opacity:.85;}
.card a.card-link{display:inline-block;margin-top:16px;font-size:0.85rem;font-weight:800;text-decoration:underline;text-underline-offset:3px;}
@media (min-width:900px){ .card{flex:0 0 24%;} }

/* campus index list */
.index-list{border-top:1px solid rgba(20,19,26,.14);}
.index-row{position:relative;display:flex;align-items:center;justify-content:space-between;padding:30px 4px;border-bottom:1px solid rgba(20,19,26,.14);cursor:pointer;overflow:hidden;}
.index-row .num{font-size:0.85rem;color:var(--ink-faint);font-weight:700;width:34px;}
.index-row h3{font-size:clamp(1.4rem,3.5vw,2.1rem);font-weight:800;letter-spacing:-0.02em;position:relative;z-index:2;transition:color .4s;}
.index-row .meta{font-size:0.9rem;color:var(--ink-soft);position:relative;z-index:2;transition:color .4s;}
.index-row .swatch{position:absolute;left:0;top:0;bottom:0;width:0%;transition:width .45s var(--ease);z-index:1;}
.index-row.active .swatch{width:100%;}
.index-row.active h3, .index-row.active .meta{color:#fff;}
.index-row .content{display:flex;align-items:baseline;gap:18px;position:relative;z-index:2;}

/* generic content blocks: philosophy / curriculum pages */
.philosophy-block{display:grid;grid-template-columns:1fr;gap:18px;}
.philosophy-block .p-item{border-radius:24px;padding:36px 32px;background:var(--paper);border:1px solid rgba(20,19,26,.08);}
.philosophy-block .p-item h3{font-size:1.2rem;font-weight:800;margin-bottom:10px;}
.philosophy-block .p-item p{color:var(--ink-soft);font-size:0.95rem;}
@media (min-width:760px){ .philosophy-block{grid-template-columns:repeat(2,1fr);} }

.curr-table{width:100%;border-collapse:collapse;margin-top:8px;}
.curr-table th, .curr-table td{text-align:left;padding:16px 14px;border-bottom:1px solid rgba(20,19,26,.1);font-size:0.92rem;}
.curr-table th{color:var(--ink-faint);font-weight:700;font-size:0.8rem;text-transform:uppercase;letter-spacing:.04em;}
.curr-table td{color:var(--ink-soft);}
.curr-table tr td:first-child, .curr-table tr th:first-child{color:var(--ink);font-weight:700;}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;}

.faq{border-top:1px solid rgba(20,19,26,.14);}
.faq-item{border-bottom:1px solid rgba(20,19,26,.14);}
.faq-item button{width:100%;text-align:left;padding:24px 4px;background:none;border:none;font:inherit;display:flex;justify-content:space-between;align-items:center;gap:16px;cursor:pointer;color:var(--ink);}
.faq-item button h3{font-size:1.02rem;font-weight:700;}
.faq-item .plus{width:20px;height:20px;flex-shrink:0;position:relative;}
.faq-item .plus::before, .faq-item .plus::after{content:'';position:absolute;background:var(--ink);border-radius:2px;}
.faq-item .plus::before{width:100%;height:2px;top:9px;left:0;}
.faq-item .plus::after{width:2px;height:100%;left:9px;top:0;transition:transform .3s var(--ease);}
.faq-item.open .plus::after{transform:rotate(90deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s var(--ease);}
.faq-a p{padding:0 4px 24px;color:var(--ink-soft);font-size:0.92rem;max-width:640px;}
.faq-item.open .faq-a{max-height:400px;}

/* 404 */
.error-page{min-height:100vh;display:flex;align-items:center;padding-top:160px;}
.error-code{font-size:clamp(4rem,16vw,9rem);font-weight:800;letter-spacing:-0.04em;color:var(--primary);line-height:1;}

/* cta */
#cta{text-align:center;}
.cta-card{background:linear-gradient(135deg,var(--primary),#8A5CFF 55%,var(--pop));color:#fff;border-radius:32px;padding:110px 32px;max-width:1072px;margin:0 auto;}
.cta-card h2{font-size:clamp(1.9rem,4.4vw,2.8rem);font-weight:800;letter-spacing:-0.02em;margin-bottom:18px;}
.cta-card p{opacity:.9;margin-bottom:38px;font-size:1.05rem;}
.cta-ctas{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;}
.cta-card .btn-primary{background:#fff;color:var(--primary);}
.cta-card .btn-ghost{border-color:#fff;color:#fff;}

footer{padding:60px 0 44px;}
.footer-row{display:flex;justify-content:space-between;flex-wrap:wrap;gap:24px;font-size:0.85rem;opacity:.7;}
.footer-row b{display:block;margin-bottom:8px;font-size:1rem;opacity:1;}
.footer-links{display:flex;gap:14px;flex-wrap:wrap;margin-top:10px;}
.footer-links a:hover{text-decoration:underline;}

@media (min-width:768px){ .phone-link{display:inline-block;} }

@media (max-width:860px){
  .loop-section .grid{grid-template-columns:1fr;}
  section{padding:88px 0;}
  .manifesto p{margin-bottom:20px;}
  .hero h1 .line:nth-child(3) b{margin-left:4vw;}
}
@media (max-width:520px){
  .cta-card{padding:70px 22px;}
  .index-row h3{font-size:1.5rem;}
}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  .hero h1 .line b,.hero p.lead,.hero-ctas,.marquee-track{animation:none !important;opacity:1 !important;transform:none !important;}
  .reveal,.stagger>*{opacity:1 !important;transform:none !important;transition:none !important;}
  .node{opacity:1 !important;transform:none !important;}
  #cur-dot,#cur-ring{display:none !important;}
}

/* =========================================================
   관리자 편집 기능 (index 전용)
   ========================================================= */
#admin-toggle{
  position:fixed;bottom:22px;right:22px;z-index:500;width:52px;height:52px;border-radius:50%;
  background:var(--ink);color:#fff;border:none;display:flex;align-items:center;justify-content:center;
  box-shadow:0 10px 30px rgba(20,19,26,.28);cursor:pointer;transition:transform .25s var(--ease);
}
#admin-toggle:hover{transform:scale(1.06);}
#admin-bar{
  position:fixed;left:50%;bottom:22px;transform:translate(-50%,140%);z-index:500;
  background:#fff;border-radius:20px;box-shadow:0 16px 46px rgba(20,19,26,.22);
  padding:14px 16px;display:flex;align-items:center;gap:10px;flex-wrap:wrap;justify-content:center;
  transition:transform .35s var(--ease);max-width:calc(100vw - 24px);
}
#admin-bar.open{transform:translate(-50%,0);}
#admin-bar .a-label{font-size:0.8rem;font-weight:700;color:var(--ink-soft);padding-right:6px;}
#admin-bar button{font-family:inherit;font-size:0.82rem;font-weight:700;border-radius:999px;padding:9px 16px;border:1.5px solid var(--ink);background:#fff;color:var(--ink);cursor:pointer;}
#admin-bar button.primary{background:var(--primary);border-color:var(--primary);color:#fff;}
#admin-bar button.pop{background:var(--pop);border-color:var(--pop);color:#fff;}
body.editing [contenteditable="true"]{outline:1.5px dashed rgba(91,61,245,.5);outline-offset:4px;border-radius:6px;}
body.editing [contenteditable="true"]:focus{outline:2px solid var(--primary);background:rgba(91,61,245,.06);}
.editable-img-wrap{position:relative;display:inline-block;}
body.editing .editable-img-wrap::after{
  content:'클릭해서 사진 교체';position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  background:rgba(20,19,26,.55);color:#fff;font-size:0.8rem;font-weight:700;opacity:0;transition:opacity .2s;
  border-radius:inherit;cursor:pointer;
}
body.editing .editable-img-wrap:hover::after{opacity:1;}
#toast{
  position:fixed;top:22px;left:50%;transform:translate(-50%,-140%);z-index:600;background:var(--ink);color:#fff;
  padding:12px 22px;border-radius:999px;font-size:0.85rem;font-weight:700;transition:transform .35s var(--ease);
  box-shadow:0 12px 30px rgba(20,19,26,.25);
}
#toast.show{transform:translate(-50%,0);}