@charset "UTF-8";:root{--navy:#0b275a;--blue:#1769ff;--mint:#10c7a2;--ink:#17243b;--muted:#687386;--line:#e4eaf2;--soft:#f5f8fc}*{box-sizing:border-box}body{margin:0;font-family:Pretendard,"Noto Sans KR","Malgun Gothic",sans-serif;background:#f3f7fc;color:var(--ink)}a{text-decoration:none;color:inherit}.portal-head{background:#fff;border-bottom:1px solid var(--line);padding:16px 24px}.portal-head .wrap,.portal-main{max-width:1100px;margin:auto}.portal-head .wrap{display:flex;justify-content:space-between;align-items:center}.logo{font-size:25px;font-weight:950;color:var(--navy)}.logo b{color:var(--mint)}.portal-main{padding:30px 20px}.hero{background:linear-gradient(135deg,#0b2b68,#1769ff);color:#fff;border-radius:24px;padding:30px;margin-bottom:20px}.hero h1{margin:0 0 8px}.hero p{margin:0;color:#dce8ff}.class-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.class-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:22px;box-shadow:0 12px 30px rgba(20,48,95,.07)}.class-card h2{margin:0 0 7px}.badge{display:inline-flex;padding:5px 9px;border-radius:999px;background:#eafbf4;color:#08745b;font-size:12px;font-weight:900}.meta{display:grid;gap:8px;color:#536174;margin:18px 0}.enter{display:flex;align-items:center;justify-content:center;width:100%;padding:14px;border-radius:12px;background:var(--blue);color:#fff;font-weight:900}.login-wrap{min-height:100vh;display:grid;place-items:center;background:linear-gradient(135deg,#edf5ff,#fff)}.login-box{width:min(430px,calc(100% - 32px));background:#fff;border:1px solid var(--line);border-radius:24px;padding:36px;box-shadow:0 22px 65px rgba(20,48,95,.15)}.login-box h1{margin:0;color:var(--navy)}.login-box p{color:var(--muted)}.field{display:grid;gap:7px;margin:15px 0}.field label{font-size:12px;font-weight:900}.field input{width:100%;padding:13px;border:1px solid #d6deea;border-radius:11px;font:inherit}.error{padding:12px;background:#fff0f0;color:#b42318;border-radius:10px}.empty{background:#fff;border:1px solid var(--line);padding:40px;text-align:center;border-radius:20px;color:var(--muted)}@media(max-width:720px){.class-grid{grid-template-columns:1fr}.portal-main{padding:18px 14px}.hero{padding:24px}}

.join-box{width:min(720px,calc(100% - 28px))}.join-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.join-grid .field{margin:0}.join-grid select{width:100%;padding:13px;border:1px solid #d6deea;border-radius:11px;background:#fff}.consent{display:flex;gap:8px;align-items:center;margin:18px 0;color:#48556a}.consent input{width:auto}.success{background:#e9fbf4;color:#08745b;padding:12px;border-radius:10px;margin-bottom:14px}.count-box{background:#f3f7ff;border-radius:14px;padding:14px;margin:15px 0;display:flex;justify-content:space-between;align-items:center}.count-box strong{font-size:26px;color:#1769ff}.live-note{display:block;text-align:center;color:#0f8b70;margin-top:8px}.warning{background:#fff4e5;color:#9a5c00}.launch-wrap{display:grid;place-items:center;min-height:100vh;background:#eef4ff}.launch-box{width:min(520px,calc(100% - 28px));background:#fff;padding:34px;border-radius:24px;box-shadow:0 24px 70px rgba(20,50,100,.15);text-align:center}.launch-msg{margin:16px 0;color:#62708a}@media(max-width:640px){.join-grid{grid-template-columns:1fr}}

:root{--navy:#10245c;--blue:#4965f5;--mint:#15c6a3;--soft:#f5f7ff}.brand-text{display:inline-flex;align-items:flex-end;gap:7px;white-space:nowrap}.brand-text small,.login-brand small{font-size:8px;letter-spacing:.13em;color:var(--blue);padding-bottom:3px}.login-brand{display:flex;align-items:flex-end;gap:8px;font-size:31px;letter-spacing:-2px}.login-links{display:flex;justify-content:center;gap:8px}.portal-head{padding:0 24px;position:sticky;top:0;z-index:30}.portal-head-row{min-height:72px;gap:28px}.portal-nav{display:flex;align-self:stretch;align-items:center;gap:7px;margin-left:auto}.portal-nav a{height:100%;display:flex;align-items:center;padding:0 12px;font-size:14px;font-weight:800;color:#59657a;border-bottom:3px solid transparent}.portal-nav a.active{color:var(--blue);border-bottom-color:var(--blue)}.portal-user{font-size:13px;color:#59657a;white-space:nowrap}.portal-user a{font-weight:800}.hero-kicker{display:block;font-size:10px;letter-spacing:.14em;color:#a8f2e4;font-weight:900;margin-bottom:7px}.portal-main .hero{background:linear-gradient(135deg,#142962,#4965f5)}.page-title{margin:0 0 7px;font-size:30px}.page-desc{margin:0 0 24px;color:var(--muted)}.summary-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:20px 0}.summary-card,.content-card{background:#fff;border:1px solid var(--line);border-radius:19px;padding:21px;box-shadow:0 10px 26px rgba(20,48,95,.05)}.summary-card small{display:block;color:var(--muted);font-weight:800}.summary-card strong{display:block;color:var(--navy);font-size:25px;margin-top:6px}.content-list{display:grid;gap:12px}.content-row{background:#fff;border:1px solid var(--line);border-radius:17px;padding:19px;display:grid;grid-template-columns:1fr auto;gap:16px;align-items:center}.content-row h3{margin:0 0 5px;font-size:17px}.content-row p{margin:0;color:var(--muted);font-size:13px}.status-pill{display:inline-flex;padding:6px 10px;border-radius:999px;background:#eef1ff;color:var(--blue);font-size:11px;font-weight:900}.status-pill.done{background:#e9fbf4;color:#08745b}.status-pill.wait{background:#fff3df;color:#9a5c00}.content-actions{display:flex;gap:8px;align-items:center}.small-btn{display:inline-flex;padding:9px 12px;border-radius:10px;background:var(--blue);color:#fff;font-size:12px;font-weight:900;border:0;cursor:pointer}.small-btn.secondary{background:#edf1f6;color:#465269}.content-card h2{margin:0 0 16px}.content-card .muted{color:var(--muted);font-size:13px}.homework-form{display:grid;gap:12px;margin-top:14px}.homework-form textarea{width:100%;min-height:120px;border:1px solid #d6deea;border-radius:12px;padding:13px;resize:vertical}.info-table{width:100%;border-collapse:collapse}.info-table th,.info-table td{padding:13px;border-bottom:1px solid var(--line);text-align:left;font-size:13px}.info-table th{width:150px;color:var(--muted)}
.section-title-row{display:flex;align-items:center;justify-content:space-between;margin:25px 0 13px}.section-title-row h2{margin:0}.section-title-row span{color:var(--muted);font-size:13px}.section-title-row b{color:var(--blue)}
@media(max-width:900px){.portal-head-row{flex-wrap:wrap;padding:12px 0}.portal-nav{order:3;width:100%;overflow:auto}.portal-nav a{height:42px}.portal-user{margin-left:auto}.summary-grid{grid-template-columns:1fr}.content-row{grid-template-columns:1fr}}
@media(max-width:640px){.portal-head{padding:0 14px}.portal-user span{display:none}.portal-nav{gap:0}.portal-nav a{padding:0 10px;font-size:12px}.summary-grid{grid-template-columns:1fr}}