:root{--blue:#0735ec;--ink:#142754;--muted:#53617a;--lime:#b8f20c;--line:#dbe2ee;--sky:#beeaff;--yellow:#ffed9e;font-size:18px;font-family:-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Noto Sans KR","Malgun Gothic",sans-serif;color:var(--ink);background:#fff;font-synthesis:none}
*{box-sizing:border-box}html{scroll-behavior:auto}body{margin:0;line-height:1.8;word-break:keep-all;overflow-wrap:break-word}a{color:inherit;text-decoration:none}button{font:inherit}button,a{-webkit-tap-highlight-color:transparent}img{display:block;max-width:100%;height:auto}h1,h2,h3,h4,p,ul,ol,dl,dd{margin:0}ul,ol{padding:0}h1,h2,h3,h4{line-height:1.35;letter-spacing:-.045em}h2{font-size:clamp(2rem,3.4vw,2.7rem);font-weight:850;color:var(--blue)}h3{font-size:1.35rem}h4{font-size:1.05rem}p+p{margin-top:18px}strong{font-weight:750}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #ea6400;outline-offset:5px}.wrap{width:calc(100% - 96px);max-width:1240px;margin-inline:auto}.section{padding-block:104px}.eyebrow{color:var(--blue);font-size:.89rem;font-weight:750;letter-spacing:.02em;margin-bottom:23px}.lead{font-size:1.2rem;line-height:1.75;letter-spacing:-.025em}.plain-note{font-size:.9rem;color:var(--muted)}.button{display:inline-flex;align-items:center;justify-content:center;min-height:56px;padding:13px 24px;border-radius:13px;font-weight:750;line-height:1.6;text-align:center;border:1px solid transparent;transition:background .2s,box-shadow .2s}.primary{background:var(--blue);color:#fff}.primary:hover{background:#0025c6;box-shadow:4px 4px 0 #c2f050}.lime{background:var(--lime);color:#122d32}.lime:hover{background:#d0ff4f}.quiet-link,.text-link{color:var(--blue);font-weight:750;text-decoration:underline;text-underline-offset:6px;text-decoration-thickness:1px}.text-link{display:inline-block;margin-top:18px;min-height:40px}.skip-link{position:fixed;z-index:100;top:10px;left:12px;padding:8px 16px;background:var(--blue);color:#fff;transform:translateY(-180%)}.skip-link:focus{transform:none}
/* Header */
.site-header{display:flex;align-items:center;justify-content:space-between;min-height:108px;border-bottom:1px solid #e9edf5;gap:30px}.brand{display:inline-flex;align-items:center;gap:14px;color:var(--blue);flex:none}.brand-ko{font-size:2.35rem;line-height:1;font-weight:950;letter-spacing:-.11em;position:relative;padding-bottom:4px}.brand-en{font-size:.72rem;letter-spacing:.12em;line-height:1;font-weight:800;padding-top:8px}.brand-smile{position:absolute;width:17px;height:8px;bottom:-5px;left:17px;border:3px solid var(--blue);border-top:0;border-radius:0 0 20px 20px}.navigation{display:flex;align-items:center;gap:35px;font-size:.94rem;font-weight:650}.navigation a{padding-block:10px}.navigation a:hover{color:var(--blue)}.navigation .nav-contact{border:1px solid #cad4f3;border-radius:99px;padding:8px 22px;color:var(--blue)}.menu-toggle{display:none}
/* A warm, adult-friendly first impression */
.hero{display:grid;grid-template-columns:1.1fr 1fr;align-items:center;gap:15px;padding-block:78px 80px}.hero .eyebrow{display:flex;align-items:center;gap:10px;margin-bottom:25px}.tiny-flower{font-size:28px;line-height:1;color:var(--blue)}h1{font-size:clamp(2.5rem,4.5vw,3.5rem);font-weight:900;letter-spacing:-.067em;line-height:1.25;color:var(--blue);white-space:nowrap}.underline-lime{position:relative;isolation:isolate}.underline-lime:after{content:"";position:absolute;height:13px;left:0;right:-3px;bottom:6px;background:var(--lime);z-index:-1;border-radius:4px}.hero-lead{font-size:1.35rem;line-height:1.6;letter-spacing:-.035em;margin-top:29px;color:var(--ink);font-weight:600}.hero-copy{max-width:500px;color:var(--muted);font-size:1rem;line-height:1.85;margin-top:18px}.hero-copy strong{font-weight:600;color:#354766}.hero-actions{display:flex;align-items:center;gap:26px;margin-top:30px}.quiet-link{font-size:.94rem}.service-status{display:flex;align-items:center;gap:8px;font-size:.88rem;color:var(--muted);margin-top:24px}.service-status>span{width:7px;height:7px;background:#688552;border-radius:50%;flex:none}.hero-scene{height:490px;position:relative;isolation:isolate}.scene-orbit{position:absolute;inset:35px 0 12px 5px;background:#eff6ff;border-radius:48% 52% 38% 62% / 54% 41% 59% 46%;transform:rotate(-9deg);z-index:-1}.scene-orbit:before{content:"";position:absolute;width:235px;height:235px;border-radius:50%;background:#dcf79a;top:14px;right:32px}.hero-art{width:95%;height:95%;object-fit:contain;position:absolute;top:28px;left:14px;transform:rotate(-5deg)}.scene-note{position:absolute;z-index:2;top:12px;left:3px;padding:16px 20px;border-radius:5px 22px 22px 22px;background:#fff1b6;font-size:1rem;color:#234085;line-height:1.6;transform:rotate(-7deg);box-shadow:0 7px 0 #12285508}.scene-note strong{font-weight:750}.scene-label{position:absolute;bottom:3px;right:3px;display:flex;align-items:center;gap:15px;padding:10px 19px;background:white;border:1px solid #dae3f7;border-radius:99px;font-size:.92rem;transform:rotate(4deg);font-weight:700;color:var(--blue);box-shadow:0 6px 20px #21379b0a}.mini-smile{display:inline-block;width:22px;height:13px;border:4px solid currentColor;border-top:0;border-radius:0 0 30px 30px;flex:none}.scene-spark{position:absolute;color:var(--blue);font-size:49px;line-height:1;z-index:2}.spark-one{bottom:47px;left:9px;transform:rotate(13deg)}.spark-two{top:17px;right:1px;font-size:35px}.promise-strip{display:flex;align-items:center;justify-content:center;gap:60px;border-block:1px solid var(--line);padding:24px 12px;font-size:1rem;color:#486081}.promise-strip i{font-style:normal;color:var(--blue);font-size:23px}
/* Different content earns a different shape. */
.about-section{display:grid;grid-template-columns:1fr 1.12fr;gap:90px;padding-bottom:78px}.about-copy{color:var(--muted);padding-top:5px}.about-copy .lead{color:var(--ink);margin-bottom:24px}.about-copy strong{color:var(--blue)}.heading-row{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:40px}.heading-row .plain-note{padding-bottom:5px}.heading-row .eyebrow{margin-bottom:19px}.learning-section{padding-bottom:106px}.learning-section .heading-row h2{font-size:1.45rem;color:var(--ink)}.learning-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.learning-card{border-radius:27px;padding:29px 29px 23px;position:relative;overflow:hidden;display:grid;grid-template-columns:1fr;align-content:start}.card-sky{background:var(--sky)}.card-lime{background:#d5f68b}.card-yellow{background:var(--yellow)}.card-index{font-size:.89rem;font-weight:650;color:#29486f}.learning-card h3{font-size:2.45rem;color:var(--blue);line-height:1.13;letter-spacing:-.065em;margin-top:27px;z-index:1}.learning-card img{width:240px;height:225px;object-fit:contain;margin:-17px -10px -7px auto;transform:rotate(4deg)}.card-lime img{transform:rotate(-7deg)}.learning-card p{font-size:1rem;line-height:1.8;color:#294469;margin-top:8px}.card-foot{margin-top:24px;padding-top:15px;border-top:1px solid #284e792c;font-size:.89rem;color:#345173}
/* A real lesson, presented as an open workbook */
.sample-section{background:#f4f7fc;overflow:hidden}.sample-layout{display:grid;grid-template-columns:.82fr 1.4fr;gap:60px;align-items:center}.sample-intro h2{font-size:2.85rem}.sample-intro .lead{margin-top:25px;color:var(--ink)}.sample-intro>p:not(.eyebrow):not(.lead){color:var(--muted);font-size:1rem;margin-top:22px}.sample-intro .button{margin-top:29px}.document-status{display:block;margin-top:15px;font-size:.89rem;color:var(--muted)}.workbook{position:relative;background:#d3e0ff;padding:14px 14px 18px;border-radius:15px 15px 20px 20px;box-shadow:0 18px 40px #19397914;transform:rotate(2deg);margin-top:9px}.workbook-top{display:flex;justify-content:space-between;padding:6px 8px 15px;font-size:.78rem;color:var(--blue);font-weight:750;letter-spacing:.02em}.workbook-pages{display:grid;grid-template-columns:1fr 1fr;border-radius:4px;overflow:hidden;background:white}.workbook-page{min-height:432px;padding:26px 21px 30px;position:relative}.page-left{background:linear-gradient(90deg,#fff 90%,#e6e9ef 100%);border-right:1px solid #d3d9e2}.page-right{background:linear-gradient(90deg,#eff0f3,#fffdf6 8%)}.paper-label{font-size:.8rem;color:#4d6292}.workbook h3{font-size:1.32rem;line-height:1.5;color:var(--blue);margin-top:18px}.paper-list{list-style:none;margin-top:30px;display:grid;gap:15px}.paper-list li{display:flex;align-items:start;gap:10px;font-size:.88rem;line-height:1.65}.paper-list b{font-size:.78rem;color:var(--blue);padding-top:1px}.paper-check{margin-top:25px;border-block:1px solid #ccd8ec;padding-block:12px;font-size:.78rem;color:#536886;line-height:1.9}.paper-check strong{font-weight:600}.page-number{position:absolute;bottom:11px;left:50%;font-size:.67rem;color:#7b89a3}.letter-example{position:relative;margin-top:35px;font-size:.97rem;line-height:1.9}.letter-example p+p{margin-top:22px}.letter-example em{font-style:normal;background:#e4f6ad;padding-inline:2px;color:#325616}.letter-stamp{position:absolute;right:0;top:-39px;font-size:35px;color:var(--blue);transform:rotate(12deg)}.paper-caption{display:block;margin-top:24px;font-size:.75rem;color:#65728d}.book-tab{position:absolute;right:25px;bottom:-18px;background:var(--lime);color:var(--blue);font-weight:750;padding:7px 17px;font-size:.87rem;transform:rotate(-4deg);border-radius:6px}
.heading-side{font-size:1rem;color:var(--muted);line-height:1.8}.process{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:32px;margin-top:58px}.process li{position:relative;border-top:1px solid #c4d2f5;padding-top:32px}.process li>span{position:absolute;top:-20px;left:0;border-radius:50%;background:#e8f3ff;color:var(--blue);width:39px;height:39px;display:grid;place-items:center;font-size:.83rem;font-weight:800;border:5px solid white}.process h3{font-size:1.16rem;margin:8px 0 15px}.process p{font-size:1rem;color:var(--muted)}
/* A proposal that can actually be discussed */
.pilot-section{background:#eff7ff}.outline-tag{display:inline-block;border:1px solid #94b0eb;color:#244a9f;border-radius:99px;padding:7px 15px;font-size:.89rem;flex:none}.section-lead{max-width:820px;color:var(--muted);font-size:1.06rem}.pilot-spec{display:grid;grid-template-columns:repeat(4,1fr);gap:25px;border-block:1px solid #c7d8ed;margin-top:38px;padding-block:28px}.pilot-spec dt{font-size:.89rem;color:#536a8a;margin-bottom:12px}.pilot-spec dd{font-size:1.22rem;font-weight:750;line-height:1.65}.pilot-spec small{font-size:.86rem;font-weight:400;color:var(--muted)}.pilot-content{display:grid;grid-template-columns:1.3fr 1fr;gap:75px;margin-top:55px}.session-list>h3{margin-bottom:23px}.session-list ol{list-style:none}.session-list li{display:flex;align-items:start;gap:20px;padding:23px 0;border-top:1px solid #d4e0ee}.session-list li>span{background:#d4ef9c;color:#27424a;font-size:.86rem;font-weight:750;min-width:45px;text-align:center;padding:4px 7px;border-radius:9px}.session-list h4{margin:3px 0 9px}.session-list p{color:var(--muted);font-size:1rem}.cooperation{background:white;border-radius:22px;padding:32px 34px;align-self:start;box-shadow:0 6px 0 #dbeaf5}.cooperation h3{color:var(--blue);margin-bottom:24px}.cooperation dl{display:grid;gap:21px}.cooperation dt{font-size:.94rem;font-weight:750;margin-bottom:6px}.cooperation dd{font-size:1rem;color:var(--muted)}.cooperation>p{font-size:.89rem;border-top:1px solid var(--line);padding-top:20px;margin-top:23px;color:var(--muted)}.business-note{border-top:1px solid #c7d8ed;padding-top:24px;color:var(--muted);margin-top:40px;font-size:.94rem}.business-note strong{color:var(--blue);margin-right:20px}
.people-section{display:grid;grid-template-columns:1fr 1.1fr;gap:80px;align-items:center}.people-visual{border-radius:24px;background:#e3f8b7;position:relative;padding:40px;min-height:400px;overflow:hidden}.people-visual h2{font-size:2.2rem}.people-visual>p{position:relative;color:#456432;font-size:1rem;margin-top:65px;z-index:1}.people-flower{position:absolute;bottom:-28px;right:-9px;color:var(--lime);font-size:190px;line-height:1;transform:rotate(15deg)}.people-copy>p{color:var(--muted)}.people-copy .lead{color:var(--ink)}.role-list{list-style:none;margin-top:25px;margin-bottom:22px}.role-list li{display:grid;grid-template-columns:70px 1fr;border-top:1px solid var(--line);padding:12px 0;font-size:.94rem}.role-list strong{color:var(--blue)}.role-list span{color:var(--muted)}
/* Planned AI support, clearly distinguished from live software */
.ai-section{background:#0c2eaa;color:white}.ai-section h2{color:white}.ai-section .eyebrow{color:#d6f886}.ai-layout{display:grid;grid-template-columns:1fr 1fr;gap:100px;align-items:center}.ai-layout>div>p:not(.eyebrow):not(.ai-status){color:#dfe8ff;margin-top:22px}.ai-status{display:inline-block;border:1px solid #7c9ae3;padding:6px 11px;border-radius:8px;font-size:.89rem;color:#edf3ff;margin-top:22px}.ai-layout .lead{margin-top:31px!important;color:#fff!important}.ai-example{background:#eef3ff;color:var(--ink);padding:29px 26px;border-radius:26px;box-shadow:9px 10px 0 #052789}.ai-example-label{display:flex;align-items:center;gap:11px;color:var(--blue);font-size:.88rem;font-weight:750;margin-bottom:24px}.ai-example-label .mini-smile{width:18px;height:10px;border-width:3px}.ai-example .chat-question{background:#d5f58d;color:#234219;padding:17px 20px;border-radius:18px 18px 3px 18px;width:fit-content;margin-left:auto;font-size:1rem;line-height:1.75}.chat-answer{background:white;border:1px solid #dae2f4;border-radius:18px 18px 18px 3px;padding:21px;margin-top:22px}.chat-answer>span{font-size:.85rem;color:var(--blue);display:block;margin-bottom:12px}.chat-answer>p{font-size:1rem;color:#304563;line-height:1.85}.source-note{border-top:1px solid #e0e7f4;margin-top:20px;padding-top:13px;font-size:.85rem;color:#546688}.ai-example .ai-example-note{font-size:.86rem;color:#546688;margin-top:19px;text-align:center;line-height:1.75}.ai-principles{display:grid;grid-template-columns:repeat(3,1fr);gap:45px;border-top:1px solid #597bd0;margin-top:64px;padding-top:32px}.ai-principles strong{font-size:1.06rem;color:#d7f890}.ai-principles p{font-size:.95rem;color:#dfe8ff;margin-top:13px}
.roadmap-section{display:grid;grid-template-columns:1fr 1.15fr;gap:80px}.roadmap-intro{margin-top:25px;color:var(--muted)}.roadmap{list-style:none;padding-left:24px;border-left:1px solid #c5d3ed;margin-left:8px}.roadmap>li{position:relative;margin-bottom:34px;padding:0 0 30px 16px;border-bottom:1px solid var(--line)}.roadmap>li:last-child{margin-bottom:0;border:0;padding-bottom:0}.roadmap-dot{position:absolute;width:13px;height:13px;left:-31px;top:9px;border:3px solid #a4b8e4;background:white;border-radius:50%}.is-current .roadmap-dot{border-color:var(--blue);background:var(--blue);box-shadow:0 0 0 6px #e2ebff}.roadmap-date{font-size:.88rem;font-weight:750;color:var(--blue)}.roadmap h3{font-size:1.3rem;margin-top:14px}.roadmap p{margin-top:15px;color:var(--muted);font-size:1rem}.roadmap .plain-note{font-size:.89rem;margin-top:17px}.funding-plan .roadmap-date{background:#e3f8b7;padding:5px 10px;border-radius:6px;margin-left:-2px;display:inline-block}.faq-section{background:#f7f9fd}.faq-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:80px}.faq-list{border-top:1px solid #ccd7ec}.faq-list details{border-bottom:1px solid #ccd7ec;padding:23px 0}.faq-list summary{list-style:none;cursor:pointer;font-size:1.05rem;line-height:1.75;font-weight:650;position:relative;padding-right:38px}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:"+";position:absolute;right:2px;top:1px;font-size:1.4rem;color:var(--blue);font-weight:400}.faq-list details[open] summary:after{content:"−"}.faq-list details p{font-size:1rem;color:var(--muted);padding:18px 25px 4px 0}
.contact-section{margin-block:80px;padding:56px 60px;background:var(--blue);border-radius:28px;color:white;display:grid;grid-template-columns:1.35fr 1fr;gap:50px;align-items:center;position:relative;box-shadow:7px 7px 0 #d3ef8c}.contact-section .eyebrow{color:#d5f58d}.contact-section h2{color:white;font-size:2.5rem}.contact-section p:not(.eyebrow){color:#e1eaff;font-size:1rem;margin-top:22px}.contact-action{display:flex;flex-direction:column;align-items:center;gap:16px}.contact-action .button{min-width:255px}.email-address{color:white;font-size:1.2rem;font-weight:600;letter-spacing:.01em}.contact-action>span{font-size:.85rem;color:#dce6ff}.site-footer{padding:0 0 42px;display:flex;justify-content:space-between;gap:35px;align-items:start}.site-footer .brand-ko{font-size:2rem}.site-footer p{font-size:.89rem;color:var(--muted);margin-top:17px}.footer-info{display:flex;flex-direction:column;align-items:end;gap:5px;font-size:.85rem;color:var(--muted)}.footer-info a{color:var(--blue);font-weight:650;font-size:.96rem}
/* The printable lesson is a useful document, not a mock download. */
.lesson-body{background:#f2f6fb}.lesson-nav{display:flex;justify-content:space-between;align-items:center;padding-block:26px;gap:20px}.lesson-nav .text-link{margin:0}.lesson-document{max-width:910px;width:calc(100% - 64px);margin:10px auto 65px;background:white;padding:65px 70px;box-shadow:0 10px 45px #18375e0b;border-radius:6px}.lesson-document h1{font-size:2.55rem;white-space:normal;line-height:1.35}.lesson-document .lead{color:var(--muted);margin-top:20px}.lesson-version{display:block;font-size:.89rem;color:var(--muted);margin-top:18px}.lesson-meta{display:flex;gap:28px;flex-wrap:wrap;border-block:1px solid var(--line);padding:17px 0;margin:28px 0;font-size:.94rem}.lesson-part{padding-top:35px;margin-top:28px;border-top:1px solid var(--line)}.lesson-part h2{font-size:1.5rem;margin-bottom:20px}.lesson-part h3{font-size:1.12rem;margin:25px 0 13px}.lesson-part p{font-size:1rem;color:#465774}.lesson-part ul,.lesson-part ol{padding-left:24px;margin-top:17px}.lesson-part li{padding-left:4px;margin-block:9px}.fill-line{display:block;border-bottom:1px solid #adbdd6;min-height:38px;margin-top:9px}.fill-field{margin-top:21px}.fill-field>span:first-child{font-size:.94rem;color:#344f74}.fact-fields{display:grid;grid-template-columns:1fr 1fr;gap:12px 24px}.fact-fields .wide{grid-column:1/-1}.lesson-tip{background:#edf6dc;border-left:4px solid #9ac72b;padding:17px 20px;margin-top:23px;font-size:.96rem;color:#3f542e}.prompt-example{background:#eef3ff;border-radius:10px;padding:21px;margin-top:18px;color:#304665;font-size:1rem;white-space:normal}.lesson-checks{list-style:none!important;padding-left:0!important}.lesson-checks li:before{content:"□";color:var(--blue);margin-right:10px}.lesson-message{padding:24px;border:1px dashed #a5b7d4;background:#fffdf5;margin-top:18px}.lesson-message p{line-height:2.1}.lesson-end{margin-top:42px;border-top:2px solid var(--blue);padding-top:22px;font-size:.9rem;color:var(--muted)}.lesson-end a{color:var(--blue);text-decoration:underline;text-underline-offset:4px}.print-help{font-size:.89rem;color:var(--muted);margin-bottom:12px}
@media(min-width:1450px){.hero{padding-block:88px 90px}h1{font-size:3.6rem}.hero-scene{height:510px}}
@media(max-width:1100px){.wrap{width:calc(100% - 64px)}.navigation{gap:22px}.hero{gap:8px}h1{font-size:3rem}.hero-scene{height:430px}.hero-lead{font-size:1.25rem}.hero-actions{gap:18px;flex-wrap:wrap}.scene-note{font-size:.9rem;left:5px;top:0}.scene-label{font-size:.83rem;right:0}.promise-strip{gap:35px}.about-section{gap:50px}.learning-card{padding:25px 24px}.learning-card h3{font-size:2.1rem}.learning-card img{width:215px;height:210px}.sample-layout{grid-template-columns:.8fr 1.2fr;gap:38px}.workbook-page{padding:23px 17px 32px;min-height:450px}.paper-list{gap:13px}.sample-intro h2{font-size:2.55rem}.sample-intro .lead{font-size:1.13rem}.process{gap:23px}.pilot-content,.people-section{gap:45px}.people-visual{padding:32px;min-height:425px}.people-visual h2{font-size:1.9rem}.ai-layout{gap:55px}.roadmap-section,.faq-layout{gap:55px}.contact-section{padding:48px 40px;gap:30px}.contact-section h2{font-size:2.2rem}}
@media(max-width:900px) and (min-width:801px){h1{font-size:2.65rem}.hero-scene{height:375px}.scene-note{font-size:.82rem;padding:13px}.scene-label{font-size:.78rem;padding:9px 13px;gap:8px}.learning-card{padding:24px 20px}.learning-card h3{font-size:1.9rem}.learning-card img{width:190px;height:190px}.learning-card p{font-size:.95rem}.sample-layout{grid-template-columns:1fr;gap:50px}.sample-intro{max-width:640px}.workbook{max-width:680px;width:100%;margin-inline:auto}.workbook-page{min-height:415px;padding:28px}.process{grid-template-columns:1fr 1fr;gap:50px}.people-section{grid-template-columns:.9fr 1fr;gap:30px}.ai-layout{gap:30px}.pilot-content{gap:30px}.cooperation{padding:26px}.pilot-spec{gap:15px}.pilot-spec dd{font-size:1.1rem}.contact-section{grid-template-columns:1.3fr 1fr;padding:40px 30px}.contact-action .button{min-width:220px}}
@media(max-width:800px){
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