:root{--blue:#087f88;--muted:#596b78;color:#182e40;background:#f4f7f8;letter-spacing:-.2px;--nav-height:0px}body{background:#f4f7f8;padding-bottom:0}header,.measuring header{background:#f4f7f8f5;border-bottom:1px solid #e3e9ec;backdrop-filter:blur(12px)}.brand{color:#152f43;font-weight:800}.hero h1,.measuring .hero h1,h1,h2,.card h2{color:#172f43}.hero p,.muted,small,.feature-grid p,.service-intro,.landing-help p{color:#5c6e7b}.hero p{font-size:15px}.card{border-radius:12px;border:1px solid #e0e7eb;background:#fff;padding:24px}.card h2{font-size:20px}.stats{gap:0;border:1px solid #dbe4e9;border-radius:10px;overflow:hidden}.stat,.stat:nth-child(2),.stat:nth-child(3){border-radius:0;background:#fff;border-right:1px solid #e0e7eb}.stat:last-child{border-right:0}.stat strong{font-variant-numeric:tabular-nums;color:#163a4c}.stat>small{font-size:12px;min-height:34px}.primary,.touch{background:#087f88;color:white}.primary:hover,.touch:hover{background:#066c74}.touch{border-radius:12px}.touch.running{background:#135f70}.timer{font-variant-numeric:tabular-nums;color:#143e52}.arrival{border-radius:8px;background:#eaf6f6}.card input,.card select,.card textarea,input,select,textarea{font-size:16px;background:#fff;border-color:#cbd7de;border-radius:7px}input[type=checkbox]{accent-color:#087f88}button,.button{border-radius:7px;min-height:44px;background:#edf2f5;color:#284759}button.primary,.button.primary{background:#087f88;color:#fff}.outline{border:1px solid #cbd8df;background:#fff}.danger{color:#a93238;background:#fff1f0}.tabs{gap:22px;border-color:#d7e2e7}.tabs button{color:#5a6d7a;font-size:14px}.tabs button.active{color:#087b84;box-shadow:inset 0 -3px #087f88;background:transparent}.bottom-nav{border-color:#d7e2e7;padding:8px 12px calc(8px + env(safe-area-inset-bottom));max-width:1100px}.bottom-nav button{color:#62737e;font-size:12px;min-height:52px}.bottom-nav button.active{color:#007982}.bottom-nav button:active{background:#e9f7f6}.has-bottom-nav main{padding-bottom:calc(var(--nav-height) + 36px)}#toast{z-index:150;bottom:calc(var(--nav-height) + 18px);max-width:calc(100% - 32px);background:#183748;color:white}.result-card,.result-card:first-child{background:#fff;border-bottom:1px solid #dfe8ec;border-radius:0;padding:18px 4px}.rank{color:#087f88;background:#e9f6f5}.result-card strong{color:#133c50;font-variant-numeric:tabular-nums}.notice{background:#f4f7f7;color:#526975;font-size:14px}.plain-back{color:#58707f}.environment-label{font-size:12px;color:#647c88}.header-actions button{min-height:40px;font-size:13px}.member-actions{display:flex;flex-wrap:wrap;gap:6px}.member-actions button{padding:9px 11px}.action-icon{width:19px;height:19px;vertical-align:middle;margin-right:7px;flex-shrink:0}.image-sheet{width:min(600px,calc(100% - 24px));max-height:90dvh;border:0;border-radius:12px;padding:22px;color:#183447}.image-sheet::backdrop{background:#132c40b3}.image-sheet img{display:block;width:100%;height:auto;margin:18px 0}.image-sheet p{line-height:1.6}.image-sheet .row{position:sticky;bottom:-22px;background:#fff;padding:12px 0}.image-sheet h2{margin-top:0}.image-sheet .muted{font-size:14px}.landing-hero{background:#e7f3f3;border-radius:10px;padding:48px 36px;border-left:5px solid #087f88}.landing-label{color:#17717a;font-size:14px;font-weight:600}.landing-hero h1{color:#173d50;font-weight:760;letter-spacing:-1.5px}.landing-hero p{color:#4b6877;font-size:16px}.pool-lines{display:none}.entry-card{border-radius:10px;border:1px solid #d6e2e7;min-height:116px}.entry-icon,.teacher .entry-icon{background:#e8f4f4;color:#087a85;border-radius:10px}.teacher .entry-icon{background:#eef2f6;color:#284b62}.entry-copy>span{color:#597180;font-size:14px}.feature-grid article>span{color:#087f88;font-weight:700}.landing-about h2,.landing-help h2{font-size:23px}.landing-help a{color:#087f88}.header-login{color:#35556a;font-size:14px}.class-result{background:#edf5f6;color:#184658}.auth-card #auth-status{color:#365d70}.auth-links button{color:#426478;font-size:14px}.landing-footer{border-color:#d9e4e9;color:#5b7280}.pill,.tag{background:#e6f4f4;color:#166d76}.certificate{border-radius:2px}button:focus-visible,a:focus-visible{outline:3px solid #27a8b0;outline-offset:3px}
@media(max-width:700px){main{padding-left:16px;padding-right:16px}.card{padding:18px;border-radius:10px}.hero h1,.measuring .hero h1{font-size:25px}.hero p{font-size:14px}.stat>small{font-size:12px;line-height:1.5}.stat strong{font-size:24px}.tabs{gap:22px}.tabs button{font-size:14px}.card>.row:has(#session) input,.card>.row:has(#session) select{font-size:16px}.row.between #rename{font-size:13px}.measuring .measure-card{border-radius:10px}.measuring:has(.touch.running){padding-bottom:155px}.measuring .touch.running{bottom:calc(var(--nav-height) + 10px);min-height:135px}.landing-hero{padding:30px 22px}.landing-hero h1{font-size:38px}.landing-hero p{font-size:15px}.entry-grid{gap:10px;margin-bottom:34px}.entry-card{padding:20px 16px;min-height:106px}.entry-copy>span{font-size:13px}.entry-copy strong{font-size:20px}.member-history table{font-size:14px}.member-certificate .certificate{max-width:100%}.member-actions{min-width:120px}.member-actions button{font-size:13px}.header-actions{gap:6px}.environment-label{font-size:11px}.member-certificate .row{gap:8px}.member-certificate .row button{flex:1;padding:13px 8px}.feature-grid{gap:12px}.landing-help{margin-left:0;margin-right:0}}

.member-dialog{width:min(440px,calc(100% - 32px));border:0;border-radius:12px;padding:24px;color:#173b4e}.member-dialog::backdrop{background:#132c4099}.member-dialog p{line-height:1.7}.member-dialog .row{margin-top:22px;justify-content:flex-end}.stats .stat strong{color:#163a4c}.row.between #measure{border-radius:10px}.member-dialog h2{margin-top:0}

/* Fit content to the viewport before clipping accidental horizontal overscroll. */
html,body{max-width:100%;overflow-x:clip}html{overscroll-behavior-x:none}main,header,#app,#panel,.card,.hero,.field{min-width:0;width:100%}.grid,.split,.entry-grid,.feature-grid{min-width:0}.grid>*,.split>*,.row>*,.entry-grid>*,.feature-grid>*,.hero>*{min-width:0;max-width:100%}.entry-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.feature-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.entry-copy{min-width:0}.entry-card{overflow-wrap:anywhere}.row input:not([type=checkbox]){flex:1 1 160px}.row .field{width:auto;flex:1 1 130px}input[type=file]{width:100%;max-width:100%}img,canvas{max-width:100%;height:auto}.link,.class-context span,h1,h2,.member-info strong{overflow-wrap:anywhere}.class-context{display:flex;align-items:center;justify-content:space-between;gap:12px;color:#537081;font-size:14px;margin:8px 0 12px}.class-context span{min-width:0}.class-context button{white-space:nowrap;flex-shrink:0}.bottom-nav button{min-width:0;flex:1 1 0;padding:4px 2px;white-space:nowrap}.bottom-nav button[data-nav=measure] svg{color:#087f88;stroke-width:2}.member-row{padding:16px 0;border-bottom:1px solid #e1e9ed;display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}.member-info{display:grid;gap:8px;min-width:0;flex:1 1 120px}.member-actions{min-width:0}.member-row:last-child{border-bottom:0}.member-list:empty:after{content:'등록된 회원이 없습니다.';display:block;padding:20px 0;color:#617887}.hero h1{line-height:1.4}.entry-card:hover{transform:none}.landing-footer{flex-wrap:wrap}.landing-help summary{overflow-wrap:anywhere}
@media(max-width:700px){.entry-grid,.feature-grid{grid-template-columns:minmax(0,1fr)}.landing-hero h1{font-size:clamp(30px,9vw,38px)}.landing-hero{padding:28px 20px}.entry-card{gap:12px}.entry-icon{width:46px;height:46px}.bottom-nav{padding-left:6px;padding-right:6px}.bottom-nav button{font-size:12px}.member-row{display:block}.member-actions{margin-top:12px}.member-actions button{flex:1}.class-context{font-size:13px}.stats{grid-template-columns:repeat(3,minmax(0,1fr))}.stat{padding:14px 9px}.stat strong{font-size:22px}.member-history .table-wrap{overflow-x:auto}.split{grid-template-columns:minmax(0,1fr)}.header-actions{flex-wrap:wrap;justify-content:flex-end}.header-actions button{padding:8px}.measuring .measure-card>.row:has(#heat-date){display:grid;grid-template-columns:repeat(2,minmax(0,1fr));align-items:end}.measuring .measure-card>.row:has(#heat-date) .field{width:100%}}

@media(max-width:700px){.member-grid>section:nth-child(2){order:-1}.member-grid textarea{min-height:110px}.card input[type=date]{min-width:0;max-width:100%}}

.business-footer{max-width:1100px;margin:24px auto 0;padding:22px 28px calc(var(--nav-height) + 26px);border-top:1px solid #dde6e9;color:#657680;font-size:11px;line-height:1.8;overflow-wrap:anywhere}.business-footer p{margin:0 0 10px;line-height:1.8}.business-footer a{color:inherit;text-underline-offset:3px}.has-bottom-nav:not(.measuring) main{padding-bottom:24px}.measuring .business-footer{display:none}@media(max-width:700px){.business-footer{padding-left:20px;padding-right:20px;font-size:11px}}

.personal-photo-editor{text-align:left;margin-bottom:20px;padding:0 14px;border:1px solid #d7e5e9;border-radius:8px;background:#f6fafb}.personal-photo-editor summary{font-size:15px;font-weight:650;color:#176d77;min-height:48px}.personal-photo-editor .stack{padding:0 0 16px;gap:12px}.personal-photo-editor p{font-size:13px;margin:0;line-height:1.6}.personal-photo-editor .row button{font-size:13px}.member-certificate #image-status{font-size:13px}.personal-photo-editor input[type=range]{accent-color:#087f88}

/* Multiple enrollments and history must fit narrow phones. */
.member-actions{flex-wrap:wrap;min-width:0}.member-info small{overflow-wrap:anywhere}.member-dialog{max-width:min(94vw,560px);max-height:85dvh;overflow:auto}.member-dialog table{font-size:13px}.member-dialog form{margin-top:20px}.member-grid select{width:100%;min-width:0}
@media(max-width:700px){.member-actions button{flex:1 1 90px;white-space:nowrap}}

/* Public settings and help pages */
.settings-link{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:44px;padding:8px 12px;border-radius:8px;background:#fff;color:#284759;text-decoration:none;font-size:14px;white-space:nowrap}.settings-link svg{width:19px;height:19px}header>.settings-link{margin-left:12px}.utility-footer{max-width:1100px;margin:0 auto;padding:24px 24px calc(var(--nav-height) + 24px);display:flex;justify-content:center;gap:20px;flex-wrap:wrap;font-size:12px;color:#59717e}.utility-footer a{color:inherit;text-underline-offset:3px}.measuring .utility-footer{display:none}.info-main{max-width:760px;margin:auto}.info-back{display:inline-flex;align-items:center;min-height:44px;color:#527383;text-decoration:none;margin-bottom:14px}.info-page .card{margin-bottom:18px}.section-kicker{font-size:11px;letter-spacing:1.6px;font-weight:700;color:#087f88;margin-bottom:12px}.settings-menu{padding:0 24px}.settings-menu>a{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:23px 0;text-decoration:none;color:#183748;border-bottom:1px solid #e1e8eb;min-height:84px}.settings-menu>a:last-child{border-bottom:0}.settings-menu strong,.settings-menu small{display:block}.settings-menu small{margin-top:8px;font-size:13px;line-height:1.5}.settings-menu>a>span:last-child{font-size:24px;color:#839aa7}.account-card #account-actions{margin-top:18px;gap:10px}.account-email{font-size:15px;overflow-wrap:anywhere;margin:8px 0}.account-help,.auth-remember,.auth-policy{font-size:13px;line-height:1.7;color:#5c6e7b}.account-help{margin-bottom:0}.auth-policy a{color:#176d77}.contact-links{display:flex;gap:16px;flex-wrap:wrap;margin:18px 0}.contact-links a,.prose a,.company-info a{color:#087780}.info-contents{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:22px}.info-contents a{padding:10px 14px;border:1px solid #cedde2;border-radius:8px;color:#315a6d;text-decoration:none;font-size:14px}.prose{font-size:15px;line-height:1.85;overflow-wrap:anywhere}.prose p{line-height:1.85}.prose h2{margin:32px 0 12px;line-height:1.5}.prose h2:first-child{margin-top:0}.prose h3{font-size:17px;margin:0 0 8px}.prose ul,.prose ol{padding-left:24px}.prose li{margin-bottom:12px}.guide-steps>li{padding:12px 0 18px 8px;border-bottom:1px solid #e2e9eb}.guide-steps>li:last-child{border-bottom:0}.guide-steps>li::marker{color:#087f88;font-weight:700}.prose details{border-bottom:1px solid #e2e9eb}.prose summary{line-height:1.6;padding:15px 0;cursor:pointer}.prose details p{margin-top:0}.story-lead{border-top:3px solid #087f88}.company-info{font-size:13px;line-height:1.8}.company-info dl{display:grid;grid-template-columns:120px minmax(0,1fr);gap:12px;margin:20px 0}.company-info dt{color:#627984}.company-info dd{margin:0;overflow-wrap:anywhere}.company-info .muted{font-size:12px}.info-page [id]{scroll-margin-top:100px}@media(max-width:600px){.info-page .card{padding:22px 18px}.settings-link{padding:8px}.company-info dl{grid-template-columns:1fr;gap:3px}.company-info dd{margin-bottom:12px}.account-card #account-actions>*{flex:1 1 180px}.info-main .hero h1{font-size:30px}.utility-footer{padding-left:16px;padding-right:16px}}