*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Pretendard,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:#fff;color:#172033}.skip{position:absolute;left:-9999px}.skip:focus{left:16px;top:16px;z-index:99;background:#fff;padding:10px}.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:24px;padding:14px 5vw;background:rgba(255,255,255,.94);backdrop-filter:blur(16px);border-bottom:1px solid #e7eaf0}.brand-wrap{display:flex;align-items:center;gap:11px;min-width:250px}.brand-mark{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;background:#172554;color:#fff;font-weight:800}.brand-wrap strong{display:block}.brand-wrap span{font-size:10px;letter-spacing:.12em;color:#67728b}nav{display:flex;gap:18px;align-items:center;flex:1}nav a{text-decoration:none;color:#48536a;font-size:14px;font-weight:650}nav b{font-size:10px;background:#eef2ff;color:#3730a3;padding:2px 6px;border-radius:10px}.actions{display:flex;gap:8px}.menu{display:none}.primary,.secondary,.ghost{border:0;border-radius:12px;padding:11px 16px;font-weight:750;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;justify-content:center}.primary{background:#172554;color:#fff}.secondary{background:#eef2ff;color:#1e3a8a}.ghost{background:#f8fafc;color:#334155;border:1px solid #dbe2ea}.large{padding:14px 20px}.hero{min-height:620px;padding:90px 8vw 70px;display:grid;grid-template-columns:1.2fr .8fr;gap:60px;align-items:center;background:radial-gradient(circle at 80% 10%,#dbeafe 0,transparent 34%),linear-gradient(135deg,#f8fafc 0,#fff 55%,#eef2ff 100%)}.eyebrow{font-size:12px;font-weight:800;letter-spacing:.16em;color:#3151a3;margin-bottom:12px}.hero h1{font-size:clamp(46px,7vw,84px);line-height:1.05;margin:0 0 22px;letter-spacing:-.055em}.hero h1 em{font-style:normal;color:#3151a3}.hero-copy>p{font-size:20px;color:#5e687c;max-width:650px;line-height:1.7}.hero-buttons{display:flex;gap:10px;margin:28px 0 18px}.notice{font-size:13px!important;color:#7b8496!important}.hero-card{background:#172554;color:#fff;border-radius:28px;padding:32px;box-shadow:0 30px 70px rgba(23,37,84,.22)}.hero-card .badge{display:inline-block;background:#2b3c79;padding:7px 10px;border-radius:999px;font-size:12px}.hero-card h2{font-size:34px;margin:24px 0 8px}.hero-card p{color:#cbd5e1;line-height:1.6}.progress-label{display:flex;justify-content:space-between;font-size:13px;margin-top:24px}.progress,.mini{height:8px;background:rgba(255,255,255,.13);border-radius:99px;overflow:hidden}.progress i,.mini i{height:100%;display:block;background:#93c5fd;border-radius:99px;width:0}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:22px}.stats div{padding:15px;background:rgba(255,255,255,.06);border-radius:16px}.stats strong{font-size:24px;display:block}.stats span{font-size:12px;color:#cbd5e1}.section{padding:88px 8vw}.soft{background:#f8fafc}.section-head{display:flex;justify-content:space-between;gap:40px;align-items:end;margin-bottom:38px}.section-head h2{font-size:42px;letter-spacing:-.04em;margin:0}.section-head>p{max-width:520px;color:#697386;line-height:1.7}.course-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.course{border:1px solid #e4e8ef;border-radius:22px;padding:24px;background:#fff;transition:.2s}.course:hover{transform:translateY(-3px);box-shadow:0 18px 40px rgba(15,23,42,.08)}.course-top{display:flex;justify-content:space-between;align-items:center}.course-no{font-size:12px;font-weight:800;color:#64748b}.course-status{font-size:11px;padding:5px 8px;border-radius:999px;background:#eef2ff;color:#3730a3}.course h3{font-size:24px;margin:22px 0 8px}.course p{color:#667085;line-height:1.65;min-height:78px}.meta{display:flex;gap:8px;flex-wrap:wrap;margin:18px 0}.meta span{font-size:11px;background:#f1f5f9;padding:6px 8px;border-radius:8px}.course button{width:100%}.classroom{display:grid;gap:12px}.class-row{display:grid;grid-template-columns:1.4fr 1fr auto;gap:16px;align-items:center;background:white;border:1px solid #e4e8ef;padding:18px 20px;border-radius:16px}.class-row .bar{height:8px;background:#edf1f6;border-radius:99px;overflow:hidden}.class-row .bar i{display:block;height:100%;background:#3151a3}.org-panel{background:#172554;color:#fff;border-radius:30px;padding:44px;display:grid;grid-template-columns:1fr 1fr;gap:50px}.org-panel h2{font-size:46px;letter-spacing:-.04em;margin:0 0 16px}.org-panel p{color:#cbd5e1;line-height:1.75}.org-demo{background:#fff;color:#172033;border-radius:20px;padding:22px}.org-title{display:flex;justify-content:space-between;margin-bottom:20px}.org-title span{font-size:11px;color:#64748b}.staff-row{display:grid;grid-template-columns:70px 1fr 50px;gap:12px;align-items:center;padding:12px 0;border-top:1px solid #edf0f4}.staff-row .mini{background:#edf1f6}.staff-row .mini i{background:#3151a3}.staff-row b{font-size:12px;text-align:right}.certificate-empty{padding:40px;border:1px dashed #cbd5e1;border-radius:18px;text-align:center;color:#64748b;background:#fff}.certificate-card{max-width:760px;margin:auto;padding:46px;border:8px double #172554;background:white;text-align:center}.certificate-card h3{font-size:34px}.notice-list{display:grid;gap:12px}.notice-list article{display:grid;grid-template-columns:100px 1fr;gap:20px;border-top:1px solid #e5e7eb;padding:20px 0}.notice-list span{font-size:13px;color:#64748b}footer{padding:36px 8vw;background:#0f172a;color:#cbd5e1;display:flex;align-items:center;gap:30px;flex-wrap:wrap}footer strong,footer span{display:block}footer span{font-size:10px;letter-spacing:.12em}footer p{flex:1}footer a{color:#fff}dialog{border:0;border-radius:22px;padding:0;width:min(680px,calc(100vw - 28px));box-shadow:0 30px 100px rgba(15,23,42,.3)}dialog::backdrop{background:rgba(15,23,42,.58);backdrop-filter:blur(3px)}.dialog-close{position:absolute;right:14px;top:12px;border:0;background:#f1f5f9;width:34px;height:34px;border-radius:50%;font-size:22px;cursor:pointer}.dialog-body,#courseDialogBody{padding:34px}.dialog-body h2,#courseDialogBody h2{font-size:32px;margin:0 0 12px}.dialog-body p,#courseDialogBody p{color:#667085;line-height:1.65}.dialog-body label{display:block;font-size:13px;font-weight:700;margin:14px 0}.dialog-body input{display:block;width:100%;padding:13px 14px;border:1px solid #d7dde6;border-radius:10px;margin-top:7px;font:inherit}.full{width:100%;margin-top:8px}.lesson-list{display:grid;gap:8px;margin:20px 0}.lesson{padding:14px;border-radius:12px;background:#f8fafc;border:1px solid #e6eaf0;display:flex;justify-content:space-between;gap:16px}.quiz{margin-top:22px;border-top:1px solid #e5e7eb;padding-top:20px}.quiz button{margin:6px 6px 0 0}.quiz-result{margin-top:12px;font-weight:750}.proposal{background:#fff7ed;color:#9a3412!important}.confirmed{background:#ecfdf5!important;color:#166534!important}@media(max-width:980px){nav{display:none;position:absolute;left:0;right:0;top:67px;background:#fff;padding:18px 5vw;flex-direction:column;align-items:stretch;border-bottom:1px solid #e5e7eb}nav.open{display:flex}.menu{display:block;margin-left:auto}.actions{display:none}.hero{grid-template-columns:1fr;padding-top:64px}.course-grid{grid-template-columns:1fr 1fr}.org-panel{grid-template-columns:1fr}.section-head{display:block}.section-head>p{margin-top:14px}.brand-wrap{min-width:auto}}@media(max-width:640px){.topbar{padding:12px 16px}.brand-wrap span{display:none}.hero,.section{padding-left:20px;padding-right:20px}.hero{gap:28px}.hero h1{font-size:48px}.hero-card{padding:24px}.course-grid{grid-template-columns:1fr}.section-head h2{font-size:34px}.org-panel{padding:26px}.org-panel h2{font-size:36px}.class-row{grid-template-columns:1fr}.notice-list article{grid-template-columns:1fr}.hero-buttons{flex-direction:column}.stats{gap:6px}.stats div{padding:12px}.stats strong{font-size:20px}}
.account-area{display:flex;gap:8px;align-items:center}.account-btn{max-width:180px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.backend-badge{display:inline-flex;align-items:center;margin-top:4px;padding:7px 10px;border-radius:999px;font-size:12px;font-weight:800}
.backend-badge.preview{background:#fff7ed;color:#9a3412}.backend-badge.ready{background:#eff6ff;color:#1d4ed8}.backend-badge.online{background:#ecfdf5;color:#166534}
.disabled{opacity:.55;cursor:not-allowed}.mode-note{padding:11px 13px;margin:16px 0;border-radius:12px;background:#f8fafc;color:#475569;font-size:13px}
.dialog-body select{display:block;width:100%;padding:13px 14px;border:1px solid #d7dde6;border-radius:10px;margin-top:7px;font:inherit;background:#fff}
.text-action{width:100%;border:0;background:transparent;padding:12px;color:#3151a3;font-weight:750;cursor:pointer}.form-note{font-size:12px!important;color:#64748b!important}
.toast{position:fixed;left:50%;bottom:28px;transform:translate(-50%,20px);opacity:0;z-index:1000;max-width:min(520px,calc(100vw - 32px));padding:13px 16px;border-radius:14px;background:#172033;color:#fff;box-shadow:0 16px 50px rgba(15,23,42,.25);transition:.2s;font-size:14px}.toast.show{opacity:1;transform:translate(-50%,0)}.toast[data-type="success"]{background:#166534}.toast[data-type="warn"]{background:#9a3412}.toast[data-type="error"]{background:#991b1b}
.account-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:18px 0}.account-cards>div{border:1px solid #e5e7eb;border-radius:14px;padding:14px}.account-cards span{display:block;color:#64748b;font-size:11px;margin-bottom:6px}.membership{display:flex;justify-content:space-between;gap:12px;padding:13px 0;border-top:1px solid #e5e7eb}.membership span{font-size:12px;color:#64748b}
@media(max-width:640px){.account-cards{grid-template-columns:1fr}}

.mobile-account-area,.mobile-intro-link{display:none}
@media(max-width:980px){
  nav .mobile-intro-link{display:block}
  nav .mobile-account-area{display:grid;grid-template-columns:1fr 1fr;gap:8px;padding-top:12px;border-top:1px solid #e5e7eb}
  nav .mobile-account-area button{width:100%}
}
@media(max-width:420px){
  nav .mobile-account-area{grid-template-columns:1fr}
}

.admin-section{background:#f5f7fb}.admin-summary{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:20px}
.admin-summary>div{background:#172554;color:#fff;border-radius:18px;padding:20px}.admin-summary span{display:block;font-size:12px;color:#cbd5e1}.admin-summary strong{display:block;font-size:30px;margin-top:8px}
.admin-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:18px}.admin-card{background:#fff;border:1px solid #e4e8ef;border-radius:22px;padding:22px}.admin-card-head{display:flex;justify-content:space-between;align-items:center;gap:12px}.admin-card h3{margin:0 0 16px}
.admin-list{display:grid;gap:12px}.application-card,.organization-row,.member-card{border:1px solid #e5e7eb;border-radius:16px;padding:16px;background:#fff}.application-card h4{font-size:19px;margin:4px 0 12px}.application-card>div>span,.organization-row span,.member-main span{display:block;font-size:12px;color:#64748b}
.application-card dl{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:0 0 14px}.application-card dl div{background:#f8fafc;padding:9px;border-radius:10px}.application-card dt{font-size:10px;color:#64748b}.application-card dd{margin:4px 0 0;font-size:13px}
.row-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.organization-row{display:flex;justify-content:space-between;align-items:center;gap:12px}
.org-manage-toolbar{display:flex;gap:8px;margin:16px 0}.org-manage-toolbar button:disabled{opacity:.45;cursor:not-allowed}.member-card{margin-top:10px}.member-main{display:flex;justify-content:space-between;align-items:center;gap:12px}.member-progress{height:8px;background:#edf1f6;border-radius:99px;overflow:hidden;margin:12px 0}.member-progress i{display:block;height:100%;background:#3151a3}.member-courses{display:flex;gap:6px;flex-wrap:wrap;color:#64748b;font-size:12px}.member-courses span{background:#f1f5f9;padding:5px 7px;border-radius:8px}
@media(max-width:780px){.admin-summary,.admin-grid{grid-template-columns:1fr}.application-card dl{grid-template-columns:1fr}.organization-row{align-items:flex-start;flex-direction:column}}