:root{--navy:#082b68;--deep:#061c46;--blue:#1768e9;--orange:#ff6a10;--ink:#183455;--muted:#6b7e96;--line:#d8e4f0;--paper:#f8faf9;--sky:#eaf3ff;--mint:#dff6e6;--yellow:#fff4b8;--coral:#ffe5d7;--shadow:0 18px 48px rgba(24,52,85,.11)}
.library-section{margin-top:70px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);font-family:Inter,"Noto Sans KR",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--paper);background-image:radial-gradient(#d9e5f0 1px,transparent 1px);background-size:24px 24px}button,input,select,textarea{font:inherit}button,a{touch-action:manipulation}.site-head{position:sticky;top:0;z-index:40;height:78px;display:flex;align-items:center;justify-content:space-between;padding:0 max(22px,calc((100vw - 1180px)/2));background:rgba(255,255,255,.92);border-bottom:1px solid rgba(216,228,240,.95);backdrop-filter:blur(18px)}.brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--navy)}.brand img{width:62px;height:52px;object-fit:contain}.brand span{display:grid;line-height:1.15}.brand strong{font-size:14px}.brand small{margin-top:4px;color:#8a99aa;font-size:9px;font-weight:900;letter-spacing:.1em}.head-links{display:flex;align-items:center;gap:10px}.head-links a{padding:10px 13px;border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--navy);text-decoration:none;font-size:11px;font-weight:900}.wrap{width:min(1180px,calc(100% - 40px));margin:auto;padding:58px 0 100px}.eyebrow{color:var(--blue);font-size:10px;font-weight:950;letter-spacing:.18em}.hero{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center;min-height:390px}.hero h1{margin:14px 0 18px;color:var(--navy);font-size:clamp(48px,7vw,80px);line-height:.95;letter-spacing:-.06em}.hero h1 em{font-style:normal;color:var(--orange)}.hero p{max-width:650px;margin:0;color:var(--muted);font-size:17px;line-height:1.75}.hero p strong{color:var(--ink)}.hero-panel{padding:30px;border:1px solid var(--line);border-radius:28px;background:linear-gradient(145deg,#fff,#edf5ff);box-shadow:var(--shadow)}.hero-panel h2{margin:9px 0 10px;color:var(--navy);font-size:28px}.benefits{display:grid;gap:10px;margin-top:22px}.benefit{display:flex;gap:12px;align-items:center;padding:13px;border-radius:15px;background:#fff;border:1px solid #e0e9f3}.benefit b{width:34px;height:34px;display:grid;place-items:center;flex:0 0 34px;border-radius:11px;background:var(--sky);color:var(--blue)}.benefit span{font-size:12px;font-weight:800}.section-title{margin:70px 0 23px;border-top:1px solid var(--line);padding-top:34px}.section-title h2{margin:7px 0 8px;color:var(--navy);font-size:clamp(30px,4vw,46px);letter-spacing:-.045em}.section-title p{margin:0;color:var(--muted);font-size:14px;line-height:1.65}.library-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.library-card{position:relative;min-height:310px;padding:30px;border-radius:26px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow);text-decoration:none;overflow:hidden;transition:transform .18s ease,box-shadow .18s ease}.library-card:hover{transform:translateY(-4px);box-shadow:0 25px 60px rgba(24,52,85,.16)}.library-card.guided{background:linear-gradient(145deg,#fff 25%,#eaf3ff)}.library-card.plain{background:linear-gradient(145deg,#fff 25%,#fff6c9);border-color:#eadf9e}.card-top{display:flex;justify-content:space-between;align-items:center}.number{color:var(--blue);font-size:10px;font-weight:950;letter-spacing:.15em}.pill{padding:6px 9px;border-radius:999px;background:#e0f5e8;color:#23734d;font-size:9px;font-weight:950}.library-card h3{margin:46px 0 9px;color:var(--navy);font-size:clamp(29px,3.5vw,44px);letter-spacing:-.045em}.library-card p{max-width:480px;margin:0;color:var(--muted);font-size:13px;line-height:1.7}.open{position:absolute;left:30px;bottom:28px;color:var(--blue);font-size:10px;font-weight:950;letter-spacing:.08em}.levels{display:grid;grid-template-columns:repeat(6,1fr);gap:10px;margin-top:18px}.level{min-height:96px;display:flex;flex-direction:column;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:18px;background:#fff;text-decoration:none;box-shadow:0 8px 22px rgba(24,52,85,.06)}.level strong{color:var(--navy);font-size:24px}.level span{margin-top:5px;color:var(--muted);font-size:9px;font-weight:850}.level.active{background:var(--navy);border-color:var(--navy)}.level.active strong,.level.active span{color:#fff}.bridge{margin-top:70px;padding:34px;border:1px solid var(--line);border-radius:26px;background:rgba(255,255,255,.9);box-shadow:var(--shadow)}.bridge-flow{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:22px}.bridge-flow div{position:relative;padding:18px;border-radius:16px;background:#eef4fa;color:#49647f;text-align:center;font-size:11px;font-weight:900;line-height:1.5}.bridge-flow div:nth-child(2){background:var(--yellow);color:#62551e}.bridge-flow div:last-child{background:var(--mint);color:#286147}.bridge-flow div:not(:last-child):after{content:"→";position:absolute;right:-9px;top:50%;transform:translateY(-50%);z-index:2;color:var(--orange);font-size:17px}
.catalog-head{display:flex;justify-content:space-between;align-items:end;gap:25px}.catalog-head h1{margin:11px 0 8px;color:var(--navy);font-size:clamp(40px,6vw,68px);letter-spacing:-.055em}.catalog-head p{margin:0;color:var(--muted)}.type-switch{display:flex;gap:8px}.type-switch a{padding:11px 13px;border-radius:12px;border:1px solid var(--line);background:#fff;color:var(--muted);font-size:10px;font-weight:900;text-decoration:none}.type-switch a.active{background:var(--navy);border-color:var(--navy);color:#fff}.filter-bar{display:flex;align-items:center;gap:8px;margin:28px 0 24px;overflow:auto;padding-bottom:4px}.filter-bar a{min-width:55px;padding:10px 12px;border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--navy);text-align:center;text-decoration:none;font-size:11px;font-weight:900}.filter-bar a.active{background:var(--blue);border-color:var(--blue);color:#fff}.lesson-list{display:grid;gap:14px}.lesson-card{display:grid;grid-template-columns:110px minmax(0,1fr) auto;align-items:center;gap:20px;padding:21px;border:1px solid var(--line);border-radius:21px;background:#fff;box-shadow:0 10px 30px rgba(24,52,85,.07)}.lesson-art{aspect-ratio:1;border-radius:18px;display:grid;place-items:center;background:linear-gradient(145deg,#e8f2ff,#fff2dc);color:var(--navy);font-size:34px;font-weight:950}.lesson-copy small{color:var(--blue);font-size:9px;font-weight:950;letter-spacing:.12em}.lesson-copy h2{margin:6px 0;color:var(--navy);font-size:24px}.lesson-copy p{margin:0;color:var(--muted);font-size:12px;line-height:1.55}.lesson-meta{display:flex;gap:8px;margin-top:12px}.lesson-meta span{padding:6px 8px;border-radius:999px;background:#f0f4f8;color:#657891;font-size:9px;font-weight:850}.lesson-action{padding:13px 16px;border-radius:13px;background:var(--blue);color:#fff;text-decoration:none;font-size:11px;font-weight:950}.empty-card{padding:45px 25px;border:1px dashed #bacbdd;border-radius:22px;background:rgba(255,255,255,.65);text-align:center}.empty-card h2{margin:0;color:var(--navy)}.empty-card p{color:var(--muted)}
.player-shell{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(320px,.65fr);gap:22px}.player-card,.lesson-info,.toggle-panel{border:1px solid var(--line);border-radius:25px;background:#fff;box-shadow:var(--shadow)}.player-card{padding:32px}.lesson-kicker{display:flex;align-items:center;justify-content:space-between;gap:15px}.lesson-kicker span{color:var(--blue);font-size:10px;font-weight:950;letter-spacing:.13em}.complete-state{padding:7px 10px;border-radius:999px;background:#f0f4f8;color:#708198;font-size:9px;font-weight:900}.complete-state.done{background:#dff6e6;color:#23734d}.player-card h1{margin:13px 0 8px;color:var(--navy);font-size:clamp(37px,5vw,58px);letter-spacing:-.055em}.player-card>.summary{margin:0;color:var(--muted);font-size:13px}.wave{height:92px;display:flex;align-items:center;justify-content:center;gap:4px;margin:35px 0 22px;padding:0 18px;border-radius:20px;background:linear-gradient(135deg,#092d69,#1768e9);overflow:hidden}.wave i{display:block;width:4px;border-radius:99px;background:#fff;opacity:.82}.time-row{display:flex;justify-content:space-between;margin-bottom:8px;color:#728198;font-size:10px;font-weight:800}.progress{width:100%;accent-color:var(--blue)}.transport{display:grid;grid-template-columns:repeat(5,1fr);gap:9px;margin-top:23px}.control{min-height:58px;border:1px solid var(--line);border-radius:15px;background:#f8fafc;color:var(--navy);font-size:10px;font-weight:900;cursor:pointer}.control.primary{background:var(--blue);border-color:var(--blue);color:#fff;font-size:14px}.control:disabled{opacity:.38;cursor:not-allowed}.options{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:10px}.option{min-height:50px;display:flex;align-items:center;justify-content:space-between;gap:10px;padding:0 14px;border:1px solid var(--line);border-radius:14px;background:#fff;color:var(--ink);font-size:10px;font-weight:850}.option select{border:0;background:transparent;color:var(--navy);font-weight:900;outline:none}.switch{width:42px;height:24px;position:relative;border:0;border-radius:99px;background:#d7e0e9;cursor:pointer}.switch:after{content:"";position:absolute;width:18px;height:18px;left:3px;top:3px;border-radius:50%;background:#fff;box-shadow:0 2px 5px #0002;transition:.18s}.switch.on{background:var(--blue)}.switch.on:after{left:21px}.text-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:15px}.text-actions button,.complete-button{height:48px;border:1px solid var(--line);border-radius:13px;background:#fff;color:var(--navy);font-size:11px;font-weight:900;cursor:pointer}.text-actions button.active{background:#edf4ff;border-color:#a9c8f4;color:var(--blue)}.complete-button{width:100%;margin-top:10px;background:var(--navy);border-color:var(--navy);color:#fff}.complete-button.done{background:#23835b;border-color:#23835b}.lesson-info{padding:26px}.lesson-info h2{margin:0 0 15px;color:var(--navy);font-size:22px}.lesson-info dl{margin:0;display:grid;grid-template-columns:86px 1fr;gap:10px 8px}.lesson-info dt{color:#8a98aa;font-size:9px;font-weight:900}.lesson-info dd{margin:0;color:var(--ink);font-size:11px;font-weight:800}.class-bridge{margin-top:22px;padding:18px;border-radius:17px;background:var(--yellow)}.class-bridge strong{display:block;color:#665619;font-size:12px}.class-bridge p{margin:7px 0 0;color:#72672e;font-size:10px;line-height:1.6}.toggle-panel{margin-top:20px;padding:27px}.toggle-panel[hidden]{display:none}.toggle-panel h2{margin:0 0 17px;color:var(--navy);font-size:22px}.script-list{display:grid;gap:9px;margin:0;padding:0;list-style:none;counter-reset:item}.script-list li{counter-increment:item;padding:13px 15px;border-radius:13px;background:#f4f7fa;color:#314e70;font-size:12px;line-height:1.55}.script-list li:before{content:counter(item,decimal-leading-zero);margin-right:10px;color:var(--orange);font-size:9px;font-weight:950}.lesson-nav{display:flex;justify-content:space-between;gap:10px;margin-top:22px}.lesson-nav a{padding:11px 13px;border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--blue);text-decoration:none;font-size:10px;font-weight:900}
@media(max-width:850px){.site-head{height:68px;padding:0 14px}.brand img{width:50px;height:43px}.head-links a:first-child{display:none}.wrap{width:min(100% - 28px,1180px);padding:35px 0 78px}.hero{display:block}.hero-panel{margin-top:32px}.library-grid{grid-template-columns:1fr}.levels{grid-template-columns:repeat(3,1fr)}.bridge-flow{grid-template-columns:1fr}.bridge-flow div:not(:last-child):after{content:"↓";right:auto;left:50%;top:auto;bottom:-13px;transform:translateX(-50%)}.catalog-head{display:block}.type-switch{margin-top:20px}.lesson-card{grid-template-columns:75px 1fr}.lesson-action{grid-column:1/-1;text-align:center}.player-shell{grid-template-columns:1fr}.transport{grid-template-columns:repeat(3,1fr)}.options{grid-template-columns:1fr}.player-card{padding:22px}.lesson-info{padding:22px}}
@media(max-width:470px){.hero h1{font-size:48px}.levels{grid-template-columns:repeat(2,1fr)}.library-card{min-height:290px;padding:24px}.open{left:24px}.head-links a{padding:9px}.transport{grid-template-columns:1fr 1fr}.control.primary{grid-column:1/-1;grid-row:1}.lesson-art{display:none}.lesson-card{grid-template-columns:1fr}.text-actions{grid-template-columns:1fr}}
.player-shell>*{min-width:0}.lesson-kicker{flex-wrap:wrap;gap:10px}.player-card h1{overflow-wrap:anywhere}.essay-player .script-list li:before{content:none}