:root{color-scheme:light;font-family:Arial,Helvetica,sans-serif;background:#f4f6f8;color:#17202a}*{box-sizing:border-box}body{margin:0;min-height:100vh}a{color:inherit}main{max-width:760px;margin:0 auto;padding:48px 20px}.card{background:white;border:1px solid #d8dee4;border-radius:14px;padding:28px;box-shadow:0 8px 24px rgba(0,0,0,.06)}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}.button{display:inline-block;padding:12px 18px;border:0;border-radius:8px;background:#16324f;color:white;text-decoration:none;cursor:pointer;font-size:1rem}.button.secondary{background:#52606d}.button.home-admin-login{background:#ffffff;border:1px solid #16324f;color:#16324f;cursor:pointer}.button.home-admin-login:hover{background:#edf4fb}.button.home-admin-login:focus-visible{outline:3px solid #7aa7d9;outline-offset:3px}form{grid-gap:16px;gap:16px}form,label{display:grid}label{grid-gap:6px;gap:6px;font-weight:600}input,textarea{width:100%;padding:12px;border:1px solid #aab4be;border-radius:8px;font-size:1rem}textarea{min-height:84px;resize:vertical}select{width:100%;border:1px solid #aab4be;background:white;font-size:1rem}.message,select{padding:12px;border-radius:8px}.message{margin-top:16px;background:#edf2f7}.error{background:#fdecec;color:#8a1c1c;font-weight:700}.success{background:#16a34a;color:#ffffff;font-weight:700}code{background:#eef1f4;padding:2px 5px;border-radius:4px}.eyebrow{margin:0 0 8px;color:#52606d;font-size:.85rem;font-weight:700;text-transform:uppercase}button:disabled{cursor:not-allowed;opacity:.65}.dashboard-header{align-items:flex-start;background:white;border:1px solid #d8dee4;border-radius:8px;display:flex;gap:20px;justify-content:space-between;padding:24px}.dashboard-header h1{margin:0 0 10px}.signed-in{color:#52606d;font-weight:700}.dashboard-grid{display:grid;grid-gap:16px;gap:16px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));margin-top:18px}.dashboard-panel{background:white;border:1px solid #d8dee4;border-radius:8px;padding:20px}.dashboard-panel h2{font-size:1.1rem;margin:0 0 14px}.dashboard-panel dl{margin:0}.dashboard-row{border-top:1px solid #eef1f4;display:grid;grid-gap:4px;gap:4px;padding:12px 0}.dashboard-row:first-child{border-top:0;padding-top:0}.dashboard-row dt{color:#52606d;font-size:.9rem;font-weight:700}.dashboard-row dd{margin:0}@media (max-width:520px){.dashboard-header{display:grid}}.stacked-main{padding-top:0}.admin-section,.practice-section{background:white;border:1px solid #d8dee4;border-radius:8px;padding:24px}.practice-controls{display:grid;grid-gap:14px;gap:14px}.practice-exercise{border-top:1px solid #eef1f4;margin-top:22px;padding-top:18px}.practice-exercise h3{margin:0 0 10px}.practice-prompt{background:#f4f6f8;border-radius:8px;font-size:1.4rem;font-weight:700;margin:16px 0;padding:18px}.alphabet-progress{color:#52606d;font-weight:700;margin:4px 0}.alphabet-replay{margin:14px 0}.alphabet-choices{display:grid;grid-gap:12px;gap:12px;grid-template-columns:repeat(2,minmax(88px,1fr));margin-top:18px;max-width:420px}.alphabet-choice{background:#fff;border:2px solid #16324f;border-radius:10px;color:#16324f;cursor:pointer;font-size:1.75rem;font-weight:800;min-height:64px}.alphabet-choice:hover:not(:disabled){background:#edf4fb}.alphabet-choice:focus-visible,.alphabet-replay:focus-visible,.alphabet-typed-input:focus-visible{outline:3px solid #7aa7d9;outline-offset:3px}.alphabet-typed-label{margin-top:18px;max-width:240px}.alphabet-typed-input{font-size:2rem;font-weight:800;text-align:center;text-transform:uppercase}.alphabet-results{display:grid;grid-gap:10px;gap:10px;margin:18px 0}.alphabet-results div{display:flex;gap:12px;justify-content:space-between;max-width:380px}.alphabet-results dd{font-weight:700;margin:0}.section-heading h2{margin:0 0 18px}.exercise-entry{border:2px solid #d8e1eb;border-radius:12px;margin-block:1rem;padding:1rem}.exercise-entry .button{margin-top:.75rem}.student-list-filters{align-items:end;border-bottom:1px solid #eef1f4;display:grid;grid-gap:14px;gap:14px;grid-template-columns:minmax(220px,1fr) minmax(180px,240px) auto;margin-bottom:18px;padding-bottom:18px}.student-create-form{align-items:end;display:grid;grid-gap:14px;gap:14px;grid-template-columns:minmax(200px,1fr) minmax(180px,220px) minmax(120px,160px) auto}.filter-actions{display:flex;gap:10px}.student-list{display:grid;grid-gap:16px;gap:16px}.student-account{border-top:1px solid #eef1f4;display:grid;grid-gap:18px;gap:18px;grid-template-columns:minmax(0,1fr) minmax(260px,320px);padding-top:18px}.student-account:first-child{border-top:0;padding-top:0}.student-account h3{margin:0 0 6px}.student-account p{margin:0 0 12px}.compact-facts{display:flex;flex-wrap:wrap;gap:12px;margin:0}.compact-facts div{background:#f4f6f8;border-radius:8px;padding:10px 12px}.compact-facts dt{color:#52606d;font-size:.85rem;font-weight:700}.compact-facts dd{margin:2px 0 0}.compact-list{display:grid;grid-gap:8px;gap:8px;margin:14px 0 0;padding-left:20px}.admin-filters{align-items:end;display:grid;grid-gap:12px;gap:12px;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));margin-top:16px}.inline-form{align-content:start;gap:10px}@media (max-width:720px){.student-account,.student-create-form,.student-list-filters{grid-template-columns:1fr}}