:root{--canvas:#213330;--surface:#182824;--text:#F5F5EB;--muted:#C1CEC5;--paper:#F5F5EB;--ink:#213330;--paper-muted:#53645E;--green:#387059;--personal:#405EAB;--together:#995761;--line:#D7DDD3;--dark-line:#586860;--body:'Pretendard Variable','Apple SD Gothic Neo','Malgun Gothic',sans-serif;--display:'Hahmlet',serif}
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p+p{margin-top:0}.exchange{display:flex;align-items:center;border-top:1px solid var(--dark-line);border-bottom:1px solid var(--dark-line);margin-top:48px;padding:30px 0}.exchange>div{flex:1;display:flex;flex-direction:column;gap:7px;min-width:0}.exchange-number{font-size:13px;color:var(--muted)}.exchange strong{font-size:18px;font-weight:600;letter-spacing:-.025em}.exchange small{font-size:13px;color:var(--muted)}.exchange-arrow{margin-inline:18px;color:#BD8E96}.section-bottom{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-top:28px}.text-link{display:inline-flex;gap:28px;align-items:center;min-height:44px;font-size:16px;font-weight:500;text-decoration:underline;text-underline-offset:7px;text-decoration-thickness:1px;flex-shrink:0}.platform-grid{display:grid;grid-template-columns:1fr 1fr;gap:100px}.platform-heading{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid 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strong{font-family:var(--display);font-size:22px;font-weight:500;letter-spacing:-.04em}.file-paper small{font-size:13px;color:var(--paper-muted)}.file-fold{position:absolute;right:0;top:0;width:30px;height:30px;background:var(--surface);clip-path:polygon(0 0,100% 100%,100% 0)}.file-transfer{display:flex;flex-direction:column;align-items:center;gap:7px;text-align:center}.file-transfer>span{font-size:60px;line-height:1.2;font-weight:400;color:var(--muted)}.file-transfer strong{font-size:16px;font-weight:500}.file-transfer small{font-size:13px;color:var(--muted)}.quick-steps{list-style:none;margin:0 0 14px;padding:0}.quick-steps li{display:grid;grid-template-columns:70px 1.3fr 1fr;align-items:center;gap:20px;border-top:1px solid var(--dark-line);padding:30px 0}.quick-steps li:last-child{border-bottom:1px solid var(--dark-line)}.quick-steps li>span{color:var(--muted);font-size:14px}.quick-steps h3{font-size:22px}.quick-steps p{font-size:16px;color:var(--muted);margin-top:10px}.quick-ui{padding:16px 18px;background:var(--paper);color:var(--ink);font-size:15px;border-radius:3px}.quick-ui b{color:var(--personal)}.quick-guide>.text-link{margin-top:20px}.info-rows{margin-top:45px}.info-rows>div{display:grid;grid-template-columns:180px 1fr;gap:50px;border-top:1px solid var(--dark-line);padding:26px 0}.info-rows>div:last-child{border-bottom:1px solid var(--dark-line)}.info-rows dt{font-size:17px;font-weight:600}.info-rows dd{color:var(--muted);max-width:680px;font-size:17px}.info-rows a{text-decoration:underline;text-underline-offset:4px}.faq h2{margin-bottom:40px}.faq details{border-top:1px solid var(--dark-line)}.faq details:last-of-type{border-bottom:1px solid var(--dark-line)}.faq summary{display:flex;justify-content:space-between;align-items:center;gap:18px;min-height:76px;padding:20px 0;cursor:pointer;list-style:none;font-size:18px;font-weight:500;letter-spacing:-.025em}.faq summary::-webkit-details-marker{display:none}.faq summary span{font-size:25px;min-width:24px;text-align:center;font-weight:400}.faq details[open] summary span{transform:rotate(45deg)}.faq details>p{padding-bottom:28px;color:var(--muted);font-size:17px;max-width:740px}.faq>.text-link{margin-top:28px}.closing{padding:100px 0 120px;border-top:1px solid var(--dark-line);text-align:center}.closing h2{font-size:58px}.closing>.button{margin-top:36px}.closing p{margin-inline:auto}.closing>.small{margin-top:20px}.footer{border-top:1px solid var(--dark-line);padding:46px 0 28px;font-size:14px}.footer-top{display:flex;align-items:center;justify-content:space-between}.footer-links{display:flex;gap:25px}.footer-links a{min-height:44px;display:flex;align-items:center}.family-links{margin-top:35px;display:flex;align-items:center;gap:28px;flex-wrap:wrap}.family-links>span{color:var(--muted);margin-right:auto;font-size:13px}.family-links a{min-height:44px;display:flex;align-items:center;gap:20px}.footer-bottom{margin-top:30px;display:flex;justify-content:space-between;gap:20px;font-size:12px;color:var(--muted)}
/* A broad paper manual, with real app fragments beside each instruction. */
.guide-cover{padding:70px 0 64px}.guide-cover h1{font-size:64px}.guide-cover>p:not(.eyebrow){margin-top:26px;color:var(--muted)}.manual{background:var(--paper);color:var(--ink);padding:36px 0 85px}.manual a:hover{color:var(--green)}.manual a:focus-visible,.manual summary:focus-visible{outline-color:var(--green)}.manual ::selection{background:var(--green);color:white}.guide-toc{display:grid;grid-template-columns:repeat(4,1fr);column-gap:30px;padding:14px 0 32px;border-bottom:1px solid #9DACA1;font-size:15px}.guide-toc a{display:flex;align-items:center;min-height:44px}.guide-chapter{padding-top:88px;scroll-margin-top:28px}.chapter-heading{display:grid;grid-template-columns:70px 1fr;gap:26px;padding-bottom:42px;border-bottom:1px solid #9DACA1}.chapter-heading>span{font-size:18px;color:var(--green);padding-top:8px}.chapter-heading h2{font-size:38px}.chapter-heading p{font-size:17px;line-height:1.75;color:var(--paper-muted);max-width:760px;margin-top:20px}.guide-step{display:grid;grid-template-columns:1.3fr 1fr;gap:85px;padding:44px 0;border-bottom:1px solid #BBC6BB;align-items:center}.guide-step-copy{position:relative;padding-left:45px}.step-number{position:absolute;left:0;top:2px;font-size:14px;color:var(--green);font-weight:600}.guide-step h3{font-size:23px;margin-bottom:18px}.guide-step-copy>p{font-size:17px;line-height:1.75}.guide-step .tip{font-size:14px;color:var(--paper-muted);margin-top:22px;border-left:2px solid #879D8A;padding-left:16px}.tip strong{display:block;font-weight:600;margin-bottom:3px;color:var(--green)}.guide-step .app-ui{font-size:15px;padding:25px;gap:14px}.manual .ui-figure figcaption{color:var(--paper-muted)}.ui-headline{font-size:26px!important;font-weight:700;color:var(--ink)!important;line-height:1.35!important}.ui-tabs{display:flex;justify-content:space-around;padding:12px 0;border-top:1px solid #ABB7AE}.ui-tabs b{color:var(--personal)}.ui-stepper,.ui-line{display:flex;justify-content:space-between;padding:12px 0;border-bottom:1px solid #D7DDD3}.ui-record{display:flex;flex-direction:column;gap:6px}.ui-record>span{color:var(--personal)}.weekdays{gap:3px}.weekdays span{font-size:12px;padding:8px 0;border-radius:6px}.data-summary{padding-left:96px}.manual .info-rows{margin-top:15px}.manual .info-rows>div{border-color:#BBC6BB;gap:35px;grid-template-columns:150px 1fr}.manual .info-rows dd{color:var(--paper-muted);font-size:16px}.manual .guide-faq{padding-left:96px}.manual .faq details{border-color:#BBC6BB}.manual .faq details>p{color:var(--paper-muted)}.manual .faq summary{font-size:17px}.manual-end{text-align:center;padding:75px 0 0}.manual-end p{font-family:var(--display);font-size:28px;letter-spacing:-.04em;margin:0 auto 28px}.manual-end>.text-link{display:flex;justify-content:center;margin-top:25px;font-size:14px}.error-page{min-height:65vh;padding:80px 0 120px}.error-page h1{font-size:64px}.error-page>p:not(.eyebrow){margin-top:28px;color:var(--muted)}
@media(min-width:1600px){.hero{padding-top:95px}.hero-arc{top:115px}.hero-margin{top:282px}}
@media(max-width:1050px){.hero h1{font-size:70px}.hero-arc{width:285px;right:-10px;top:140px}.hero-margin{right:66px;top:253px;font-size:14px}.scene{gap:65px;grid-template-columns:1fr 1.15fr}.scene-copy h2,h2{font-size:37px}.feature-row{gap:55px}.demo-layout{gap:50px}.together h2{font-size:44px}.exchange-arrow{margin-inline:12px}.exchange small{font-size:12px}.platform-grid{gap:50px}.guide-step{gap:45px}.guide-step-copy{padding-left:32px}.file-diagram{gap:24px}.file-paper{padding-inline:20px}.file-paper strong{font-size:19px}}
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/* Keep explanations legible at every viewport, including the app fragments. */
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/* 리뷰: 녹색 표지와 약속표의 리듬을 유지하며 조작 영역을 보완한다. */
.site-header nav a{min-width:44px;justify-content:center}
.skip:hover{color:var(--ink);background:#fff}
.reset-button{min-width:44px}