:root{--frame:#BBD7F2;--blue:#4F7DF0;--navy:#44546A;--cream:#FFF8E4;--bg:#EAF2FC;--ink:#1F2A44}*{box-sizing:border-box}body{margin:0;font-family:Pretendard Variable,Pretendard,system-ui,-apple-system,Segoe UI,sans-serif;background:var(--bg);color:var(--ink)}.mx-shell{max-width:960px;margin:0 auto;padding:0 20px 60px}.mx-top{display:flex;justify-content:space-between;align-items:center;padding:20px 0}.mx-brand{font-size:1.3rem;color:var(--blue)}.mx-who{font-size:.9rem;color:var(--navy);display:flex;gap:12px;align-items:center}h1{font-size:1.6rem;margin:12px 0 20px}.mx-card{background:#fff;border:4px solid var(--frame);border-radius:24px;padding:24px;margin:16px 0}.mx-card h2,.mx-card h3{margin-top:0}.mx-login{max-width:420px;margin:40px auto;display:flex;flex-direction:column;gap:14px}label{display:flex;flex-direction:column;gap:6px;font-size:.9rem;color:var(--navy)}input{font:inherit;padding:12px 14px;border:2px solid #CBD6E6;border-radius:12px}.mx-btn{font:inherit;font-weight:700;background:var(--navy);color:#fff;border:0;border-radius:999px;padding:12px 22px;cursor:pointer}.mx-btn:disabled{opacity:.5}.mx-link{background:none;border:0;color:var(--blue);cursor:pointer;font:inherit;padding:0}.mx-err{color:#c0392b;margin:0;font-size:.9rem}.mx-muted{color:#7a869c;font-size:.9rem}.mx-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}.mx-unit{text-align:left;background:#fff;border:4px solid var(--frame);border-radius:24px;padding:20px;display:flex;flex-direction:column;gap:8px;cursor:pointer;font:inherit}.mx-unit:hover{border-color:var(--blue)}.mx-chip{display:inline-block;background:#e0eafb;color:var(--blue);border-radius:999px;padding:4px 12px;font-size:.8rem;font-weight:700;width:fit-content}.mx-tabs{display:flex;gap:8px;margin-bottom:8px;flex-wrap:wrap}.mx-tab{font:inherit;background:#fff;border:2px solid var(--frame);border-radius:999px;padding:8px 16px;cursor:pointer}.mx-tab.mx-on{background:var(--blue);color:#fff;border-color:var(--blue)}.mx-lessons{list-style:none;padding:0;margin:0 0 12px;display:grid;gap:8px}.mx-lessons li{display:flex;justify-content:space-between;padding:10px 14px;background:var(--cream);border-radius:12px}.mx-vocab{display:flex;flex-wrap:wrap;gap:8px}.mx-acts{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:10px}.mx-act{text-align:left;font:inherit;background:var(--cream);border:2px solid transparent;border-radius:14px;padding:12px 14px;display:flex;flex-direction:column;gap:4px;cursor:pointer}.mx-act:hover{border-color:var(--blue)}.mx-act.mx-done{background:#e7f6ec}.mx-chip.mx-ok{background:#d8f2e0;color:#1e8e4e}.mx-resume{margin:8px 0 4px;font-size:1.05rem;padding:14px 26px;background:#ff9f1c;color:#1f2a44}