:root{--ink:#10243a;--blue:#2459d3;--orange:#e97824;--green:#278a59;--line:#d9e2e8;--paper:#f7f9f7;--white:#fff;--muted:#637181}*{box-sizing:border-box}body{margin:0;background:linear-gradient(135deg,#f7faf7,#edf3ff);color:var(--ink);font-family:"Pretendard","Noto Sans KR","Malgun Gothic",sans-serif;min-height:100vh}.portal-header{height:76px;display:flex;align-items:center;gap:28px;padding:0 clamp(20px,5vw,72px);background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}.wordmark{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;font-size:11px;letter-spacing:.08em;line-height:1.05}.wordmark span{display:grid;place-items:center;width:38px;height:38px;border-radius:12px;background:var(--ink);color:#fff;font:900 22px Georgia}.portal-header nav{display:flex;gap:8px;margin-left:auto}.portal-header nav a,.home-link{padding:10px 13px;border-radius:10px;color:#394b5d;text-decoration:none;font-size:14px;font-weight:800}.portal-header nav a.active{background:#eaf0ff;color:var(--blue)}.home-link{border:1px solid var(--line)}main{width:min(1040px,calc(100% - 32px));margin:0 auto;padding:64px 0 100px}.portal-intro{text-align:center;margin-bottom:28px}.eyebrow{margin:0 0 8px;color:var(--blue);font-size:12px;font-weight:900;letter-spacing:.15em}.portal-intro h1{font-size:clamp(36px,6vw,62px);letter-spacing:-.055em;margin:0 0 12px}.portal-intro>p:last-child{margin:0;color:var(--muted);font-size:17px}.auth-shell{width:min(470px,100%);margin:34px auto;background:#fff;border:1px solid var(--line);border-radius:24px;padding:28px;box-shadow:0 20px 60px rgba(16,36,58,.1)}.auth-tabs{display:grid;grid-template-columns:1fr 1fr;background:#eef2f4;border-radius:12px;padding:4px;margin-bottom:24px}.auth-tabs button{border:0;background:transparent;border-radius:9px;padding:11px;font-weight:900;color:#637181;cursor:pointer}.auth-tabs button.active{background:#fff;color:var(--ink);box-shadow:0 3px 12px rgba(16,36,58,.08)}.auth-form{display:grid;gap:16px}.auth-form label,.child-form label{display:grid;gap:7px;font-size:13px;font-weight:900}.auth-form input,.child-form input{width:100%;border:1.5px solid #c9d5dd;border-radius:12px;padding:13px 14px;font:inherit;outline:none;background:#fff}.auth-form input:focus,.child-form input:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(36,89,211,.1)}button{font:inherit;cursor:pointer}.submit{border:0;border-radius:12px;padding:14px;background:var(--blue);color:#fff;font-weight:900}.form-message{min-height:20px;margin:14px 0 0;color:#c4332b;font-size:13px;text-align:center;font-weight:700}.dashboard{background:#fff;border:1px solid var(--line);border-radius:26px;padding:clamp(24px,4vw,42px);box-shadow:0 20px 60px rgba(16,36,58,.1)}.dashboard-head{display:flex;justify-content:space-between;gap:24px;align-items:start;padding-bottom:28px;border-bottom:1px solid var(--line)}.dashboard-head h2{font-size:clamp(25px,4vw,38px);letter-spacing:-.04em;margin:0 0 8px}.dashboard-head p:last-child{margin:0;color:var(--muted)}.dashboard-head>button,#cancelEdit{border:1px solid var(--line);background:#fff;border-radius:10px;padding:10px 13px;font-weight:800;color:#566575;white-space:nowrap}.child-form{margin:30px 0;padding:22px;border-radius:18px;background:#f2f6ff}.child-form>div:first-of-type{display:grid;grid-template-columns:1fr 1fr;gap:14px}.form-actions{display:flex;gap:8px;margin-top:14px}.children-head{display:flex;align-items:center;justify-content:space-between;margin:30px 0 14px}.children-head h3{font-size:22px;margin:0}.children-head span{padding:6px 10px;border-radius:999px;background:#e8f4ec;color:var(--green);font-weight:900}.children-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.child-card{border:1px solid var(--line);border-radius:16px;padding:18px;background:#fff}.child-card .class{display:inline-block;padding:5px 9px;border-radius:7px;background:#eaf0ff;color:var(--blue);font-size:12px;font-weight:900}.child-card h4{font-size:21px;margin:13px 0 18px}.child-card .card-actions{display:flex;gap:7px}.child-card button{flex:1;border:1px solid var(--line);border-radius:9px;padding:8px;background:#fff;font-size:13px;font-weight:800}.child-card button.delete{color:#c4332b}.empty{display:grid;place-items:center;gap:7px;text-align:center;border:1px dashed #c4d0d8;border-radius:16px;padding:40px;color:var(--muted)}.empty b{color:var(--ink)}.parent-card{margin-top:30px;padding:32px;border-radius:20px;background:linear-gradient(135deg,#edf8f1,#edf3ff)}.parent-card span{color:var(--green);font-size:12px;font-weight:900}.parent-card h3{font-size:28px;margin:10px 0}.parent-card p{color:var(--muted);line-height:1.7;margin:0;max-width:620px}@media(max-width:700px){.portal-header{height:auto;min-height:70px;padding:12px 16px;flex-wrap:wrap;gap:6px}.portal-header nav{order:3;width:100%;justify-content:center;border-top:1px solid var(--line);padding-top:8px}.portal-header nav a{padding:8px}.home-link{margin-left:auto}.portal-intro{margin-top:4px}main{padding-top:34px}.children-grid{grid-template-columns:1fr 1fr}.child-form>div:first-of-type{grid-template-columns:1fr}}@media(max-width:480px){.children-grid{grid-template-columns:1fr}.dashboard-head{display:block}.dashboard-head>button{margin-top:16px}.auth-shell{padding:21px}.portal-header nav{font-size:12px}}