@import "https://fonts.googleapis.com/css2?family=Gowun+Dodum&family=Noto+Sans+KR:wght@400;500;600;700;800&display=swap";:root{color:#16365f;font-synthesis:none;--navy:#16365f;--sky:#38a9ed;--mint:#70d7b8;--coral:#ff806d;--yellow:#ffd56a;--ivory:#fffaf0;--line:#e8e3d8;--shadow:0 10px 28px #18365f17;background:#fffaf0;font-family:Noto Sans KR,system-ui,sans-serif}*{box-sizing:border-box}html{background:var(--ivory);min-width:320px}body{background:radial-gradient(circle at 90% 0%, #eaf7ff 0, transparent 24rem), var(--ivory);min-width:320px;min-height:100vh;margin:0}button,input,select{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button{color:inherit}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline-offset:3px;outline:4px solid #ffb800}button:disabled{cursor:not-allowed;opacity:.65}.sr-only{clip:rect(0,0,0,0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.app-shell{width:min(100%,1440px);margin:0 auto;padding:24px 30px 48px}.app-header{grid-template-columns:240px minmax(260px,1fr) auto;align-items:center;gap:28px;min-height:72px;display:grid}.brand{letter-spacing:-.09em;align-items:center;gap:6px;width:fit-content;font-size:clamp(1.65rem,3vw,2.45rem);font-weight:800;display:inline-flex}.brand>span:last-child>span{color:#08a7bf}.brand-mascot{filter:drop-shadow(0 4px 4px #16365f26);place-items:center;width:58px;height:58px;font-size:2.6rem;display:grid;transform:rotate(-6deg)}.search-box{background:#ffffffeb;border:2px solid #d8dce4;border-radius:999px;align-items:center;gap:14px;height:58px;padding:0 22px;display:flex;box-shadow:0 4px 10px #16365f0f}.search-box span{color:#77849b;font-size:2rem;transform:rotate(-20deg)}.search-box input{width:100%;min-width:0;color:var(--navy);background:0 0;border:0;outline:0;font-size:1rem;font-weight:600}.search-box input::placeholder{color:#7b8496;opacity:1}.header-actions{align-items:center;gap:12px;display:flex}.time-chip,.parent-button{white-space:nowrap;border-radius:999px;justify-content:center;align-items:center;gap:8px;min-height:50px;padding:0 17px;display:inline-flex}.time-chip{color:#164879;background:#e2f4ff}.time-chip>span{font-size:1.45rem}.parent-button{background:#edf0ff;border:1px solid #b8c4f5;font-weight:700}.category-tabs{grid-template-columns:repeat(6,minmax(100px,1fr));gap:14px;margin:22px 0;display:grid}.category-tabs button{border:1px solid color-mix(in srgb, currentColor 25%, transparent);cursor:pointer;background:#fff;border-radius:999px;min-height:58px;font-size:1.04rem;font-weight:700;transition:transform .18s,box-shadow .18s}.category-tabs button:hover{box-shadow:var(--shadow);transform:translateY(-2px)}.category-tabs button span{vertical-align:middle;margin-right:7px;font-size:1.45rem}.category-tabs .all{color:#1977c7;background:#e7f3ff}.category-tabs .mint{color:#275c37;background:#e4f7e8}.category-tabs .sky{color:#1d5275;background:#dff4ff}.category-tabs .yellow{color:#6b4a16;background:#fff2cb}.category-tabs .purple{color:#463c78;background:#eee9ff}.category-tabs .coral{color:#74352d;background:#ffe4db}.category-tabs button.active{color:#fff;background:var(--sky);border-color:#0000;box-shadow:0 7px 16px #38a9ed47}.category-tabs button.active:not(.all){color:var(--navy);background:#fff;box-shadow:inset 0 0 0 3px}.gentle-notice{color:#624a12;text-align:center;background:#fff2bf;border-radius:14px;margin:0 0 16px;padding:13px 18px;font-weight:600}.gentle-notice.time-over{color:#285b43;background:#e8f5ee}.hero-grid{grid-template-columns:minmax(0,1.75fr) minmax(280px,1fr);gap:18px;display:grid}.featured-card{min-height:330px;box-shadow:var(--shadow);isolation:isolate;background:linear-gradient(115deg,#0f466a,#278ab0 52%,#bce9dc);border-radius:24px;position:relative;overflow:hidden}.featured-card:before,.featured-card:after{content:"";background:#ffffff21;border-radius:50%;position:absolute}.featured-card:before{width:300px;height:300px;top:-70px;right:-50px}.featured-card:after{width:210px;height:210px;bottom:-130px;right:160px}.featured-card.art-ocean{background:linear-gradient(115deg,#0e537c,#30a9d2 55%,#b7f0ea)}.featured-card.art-lego{background:linear-gradient(115deg,#263f77,#67459b 55%,#ffb469)}.featured-card.art-learning{background:linear-gradient(115deg,#1b2b68,#514b9c 55%,#f29f86)}.featured-card img{object-fit:cover;width:100%;height:100%;position:absolute}.featured-card img+.featured-overlay{background:linear-gradient(90deg,#091d34eb,#091d3438)}.featured-overlay{z-index:2;color:#fff;flex-direction:column;justify-content:center;align-items:flex-start;padding:34px;display:flex;position:absolute;inset:0}.eyebrow{letter-spacing:.08em;text-transform:uppercase;opacity:.85;font-size:.82rem;font-weight:800}.featured-overlay h1{letter-spacing:-.04em;max-width:65%;margin:8px 0 4px;font-family:Gowun Dodum,Noto Sans KR,sans-serif;font-size:clamp(1.8rem,3.4vw,3rem);line-height:1.25}.featured-overlay p{opacity:.85;margin:0 0 22px}.play-button,.primary-button{background:var(--sky);color:#fff;cursor:pointer;border:0;border-radius:15px;justify-content:center;align-items:center;gap:10px;min-height:50px;padding:0 22px;font-weight:800;display:inline-flex;box-shadow:0 7px 15px #005daa42}.play-button span{font-size:1.1rem}.hero-emoji{z-index:1;filter:drop-shadow(0 18px 10px #06212f4d);font-size:clamp(8rem,18vw,14rem);position:absolute;bottom:4%;right:8%;transform:rotate(-4deg)}.promise-card{min-height:330px;box-shadow:var(--shadow);text-align:center;background:linear-gradient(#dff5ff,#f0fbff 65%,#ddf4d0);border-radius:24px;flex-direction:column;justify-content:space-between;align-items:center;padding:22px;display:flex;overflow:hidden}.promise-card h2{align-self:flex-start;margin:0;font-size:1.25rem}.promise-card h2 span{margin-right:7px}.promise-card p{color:#41617d;margin:8px 0 0;font-size:.88rem}.time-ring{background:conic-gradient(var(--sky) var(--progress),#cfe3f4 0);border-radius:50%;place-items:center;width:170px;height:170px;padding:14px;display:grid;box-shadow:inset 0 0 0 1px #fff9}.time-ring>div{background:#effaff;border-radius:50%;flex-direction:column;justify-content:center;align-items:center;width:100%;height:100%;display:flex}.time-ring span{font-size:.85rem}.time-ring strong{color:#1360a1;font-size:2.2rem}.video-section{margin-top:28px}.video-section>h2{margin:0 0 12px 6px;font-size:1.22rem}.video-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;display:grid}.video-card{border:1px solid var(--line);background:#fff;border-radius:19px;transition:transform .18s,box-shadow .18s;overflow:hidden;box-shadow:0 5px 13px #16365f12}.video-card:hover{box-shadow:var(--shadow);transform:translateY(-3px)}.video-thumb{aspect-ratio:16/9;background:#bfe6e2;display:block;position:relative;overflow:hidden}.video-thumb img{object-fit:cover;width:100%;height:100%}.placeholder-art{background:radial-gradient(circle at 50% 110%,#85d388 0 25%,#0000 26%),linear-gradient(145deg,#c8f0f5,#72c8dc);place-items:center;width:100%;height:100%;display:grid}.art-dinosaur .placeholder-art,.mini-art.art-dinosaur{background:linear-gradient(145deg,#b7e5bb,#68ae75)}.art-ocean .placeholder-art,.mini-art.art-ocean{background:linear-gradient(145deg,#afe9f4,#329fc7)}.art-lego .placeholder-art,.mini-art.art-lego{background:linear-gradient(145deg,#9fafea,#4f63b3)}.art-learning .placeholder-art,.mini-art.art-learning{background:linear-gradient(145deg,#604eaa,#141d5c)}.art-songs .placeholder-art,.mini-art.art-songs{background:linear-gradient(145deg,#ffd1bd,#ff806d)}.placeholder-art span{filter:drop-shadow(0 8px 6px #0d3a4a40);font-size:clamp(4rem,8vw,7rem)}.duration{color:#fff;background:#0c1d33d1;border-radius:7px;padding:3px 7px;font-size:.76rem;font-weight:700;position:absolute;bottom:8px;right:8px}.play-bubble{color:#188ed5;opacity:0;background:#ffffffe6;border-radius:50%;place-items:center;width:48px;height:48px;transition:opacity .18s,transform .18s;display:grid;position:absolute;top:50%;left:50%;transform:translate(-50%,-45%)}.video-thumb:hover .play-bubble,.video-thumb:focus-visible .play-bubble{opacity:1;transform:translate(-50%,-50%)}.video-card-body{justify-content:space-between;gap:8px;min-height:70px;padding:12px 13px 6px;display:flex}.video-card h3{margin:0;font-size:.94rem;line-height:1.45}.video-card p{color:#6d7888;margin:4px 0 0;font-size:.75rem}.favorite-mark{color:#efad13;font-size:1.25rem}.demo-label{color:#777;padding:0 13px 11px;font-size:.67rem;display:block}.empty-state{text-align:center;background:#ffffffa6;border:2px dashed #c9d8d0;border-radius:24px;place-content:center;justify-items:center;min-height:290px;margin-top:20px;padding:30px;display:grid}.empty-state span{font-size:4rem}.empty-state p{color:#52667a;font-size:1.05rem;line-height:1.7}footer{color:#758396;text-align:center;padding:42px 0 4px;font-size:.8rem}.parent-access-page{background:radial-gradient(circle at 20% 10%,#dff5ff,transparent 28rem),radial-gradient(circle at 90% 90%,#dff5e6,transparent 24rem),var(--ivory);place-items:center;min-height:100vh;padding:24px;display:grid}.pin-card{border:1px solid var(--line);width:min(100%,480px);box-shadow:var(--shadow);text-align:center;background:#fffffff0;border-radius:28px;padding:36px}.pin-card .brand{margin:0 auto 10px}.lock-illustration{margin:10px;font-size:4.2rem;display:block}.pin-card h1{margin:10px 0;font-size:1.55rem}.pin-card>p{color:#697588;margin:0 0 24px;line-height:1.6}.pin-card form{text-align:left;gap:15px;display:grid}.pin-card label,.video-form label,.settings-card label{gap:7px;font-size:.84rem;font-weight:700;display:grid}input,select{min-height:46px;color:var(--navy);background:#fff;border:1px solid #cbd3de;border-radius:11px;padding:0 12px}.pin-card input{text-align:center;letter-spacing:.3em;min-height:54px;font-size:1.35rem}.pin-card .primary-button{width:100%;margin-top:5px}.text-button{color:#55708d;cursor:pointer;background:0 0;border:0;min-height:44px;margin-top:14px;text-decoration:underline}.form-error,.form-success{border-radius:10px;margin:0;padding:10px 12px;font-size:.85rem}.form-error{color:#9c3325;background:#fff0ed}.form-success{color:#286844;background:#e9f8ef}.parent-dashboard{background:#f5f7fa;min-height:100vh}.parent-header{background:#fff;border-bottom:1px solid #e2e6ec;justify-content:space-between;align-items:center;height:74px;padding:0 max(24px,50% - 640px);display:flex}.parent-header .brand{font-size:1.55rem}.parent-header .brand-mascot{width:42px;height:42px;font-size:2rem}.parent-header>div{align-items:center;gap:18px;font-weight:800;display:flex}.parent-header button,.subtle-button,.row-actions button{cursor:pointer;background:#fff;border:1px solid #cbd3de;border-radius:10px;min-height:44px;padding:0 14px;font-weight:700}.parent-content{grid-template-columns:minmax(0,2fr) minmax(260px,1fr);gap:20px;width:min(100% - 32px,1280px);margin:24px auto 60px;display:grid}.admin-card{background:#fff;border:1px solid #e2e6ec;border-radius:18px;padding:24px;box-shadow:0 4px 12px 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button{width:100%}.library-card{grid-column:1/-1}.admin-video-list{gap:10px;margin-top:16px;display:grid}.admin-video-row{border:1px solid #e4e8ee;border-radius:14px;grid-template-columns:94px 1fr auto;align-items:center;gap:15px;padding:10px;display:grid}.mini-art{color:#fff;border-radius:9px;place-items:center;height:58px;font-size:.7rem;font-weight:800;display:grid}.admin-video-info h3{margin:0;font-size:.95rem}.admin-video-info p{color:#758092;margin:3px 0;font-size:.75rem}.badges{gap:5px;display:flex}.badges span{background:#edf1f6;border-radius:999px;padding:2px 7px;font-size:.66rem}.badges .on{color:#26633b;background:#e5f7ea}.badges .off{color:#666;background:#f0f0f0}.row-actions{gap:8px;display:flex}.row-actions .danger{color:#a83c2c;border-color:#f1c2bc}.player-page{background:#f3f7fa;min-height:100vh}.player-header{background:#fff;border-bottom:1px solid #e3e7eb;justify-content:space-between;align-items:center;height:76px;padding:0 max(24px,50% - 560px);display:flex}.player-header .brand{font-size:1.6rem}.player-header .brand-mascot{width:44px;height:44px;font-size:2rem}.player-time{background:#e4f5ff;border-radius:12px;align-items:baseline;gap:10px;padding:8px 14px;display:flex}.player-time span{font-size:.78rem}.player-time strong{color:#12689e;font-size:1.2rem}.player-content{width:min(100% - 32px,1120px);margin:26px auto}.back-link{color:#4c6680;align-items:center;min-height:44px;font-weight:700;display:inline-flex}.player-content h1{margin:5px 0 18px;font-size:clamp(1.35rem,3vw,2rem)}.youtube-frame{aspect-ratio:16/9;width:100%;box-shadow:var(--shadow);background:#071321;border-radius:20px;overflow:hidden}.youtube-frame>div,.youtube-frame iframe{width:100%;height:100%}.player-placeholder{color:#fff;text-align:center;background:#162f4b;border-radius:20px;place-content:center;justify-items:center;min-height:420px;padding:30px;display:grid}.player-placeholder span{font-size:4rem}.player-placeholder p{font-size:1.1rem}.demo-warning,.player-error{color:#675016;background:#fff2c7;border-radius:12px;margin:0 0 14px;padding:12px 16px;font-size:.85rem}.player-error{color:#8a3329;background:#ffebe7;margin-top:14px}.player-bottom{justify-content:space-between;align-items:center;gap:15px;margin-top:17px;display:flex}.player-bottom p{color:#647185;font-size:.87rem}.player-message{text-align:center;place-content:center;justify-items:center;min-height:100vh;padding:24px;display:grid}.player-message>span{font-size:5rem}.status-toast{z-index:100;color:#fff;max-width:calc(100% - 30px);box-shadow:var(--shadow);text-align:center;background:#17365c;border-radius:13px;padding:13px 18px;position:fixed;bottom:20px;left:50%;transform:translate(-50%)}.update-toast{align-items:center;gap:9px;display:flex}.update-toast button{min-height:44px;color:var(--navy);cursor:pointer;background:#fff;border:0;border-radius:9px;padding:0 12px}@media (width<=1000px){.app-header{grid-template-columns:auto 1fr}.search-box{grid-area:2/1/auto/-1}.header-actions{justify-self:end}.category-tabs{grid-template-columns:repeat(6,140px);padding-bottom:5px;overflow-x:auto}.hero-grid{grid-template-columns:minmax(0,1.6fr) minmax(250px,1fr)}.featured-card,.promise-card{min-height:300px}.video-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}@media (width<=720px){.app-shell{padding:14px 16px 38px}.app-header{gap:10px}.brand{font-size:1.55rem}.brand-mascot{width:42px;height:42px;font-size:2rem}.time-chip{display:none}.parent-button{min-height:44px;padding:0 12px;font-size:.82rem}.search-box{height:52px}.category-tabs{grid-template-columns:repeat(6,120px);gap:9px;margin:15px 0}.category-tabs button{min-height:50px;font-size:.9rem}.hero-grid{grid-template-columns:1fr}.featured-card{min-height:275px}.featured-overlay{padding:24px}.featured-overlay h1{max-width:78%}.hero-emoji{font-size:8.5rem;right:1%}.promise-card{text-align:left;grid-template-columns:1fr auto;min-height:auto;display:grid}.promise-card h2{align-self:center}.promise-card p{grid-column:1}.time-ring{grid-area:1/2/3;width:120px;height:120px}.time-ring strong{font-size:1.55rem}.video-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:11px}.video-card-body{min-height:78px;padding:10px}.placeholder-art span{font-size:4rem}.parent-header{height:auto;padding:12px 16px}.parent-header>div>span{display:none}.parent-content{grid-template-columns:1fr;width:min(100% - 22px,1280px);margin-top:12px}.admin-card{padding:17px}.admin-side,.library-card{grid-column:1}.video-form{grid-template-columns:1fr}.video-form label,.video-form .full{grid-column:1}.admin-video-row{grid-template-columns:70px 1fr}.row-actions{grid-column:1/-1;justify-content:flex-end}.player-header{padding:0 16px}.player-time span{display:none}.player-content{width:min(100% - 20px,1120px);margin-top:14px}.youtube-frame{border-radius:12px}.player-placeholder{min-height:260px}.player-bottom{flex-direction:column;align-items:stretch}.player-bottom .primary-button{width:100%}}@media (width<=410px){.video-grid{grid-template-columns:1fr}.promise-card{text-align:center;grid-template-columns:1fr}.promise-card h2{justify-self:center}.promise-card .time-ring{grid-area:auto/1;justify-self:center}.promise-card p{grid-column:1}.pin-card{padding:25px 18px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition:none!important}}