:root{--navy:#17324d;--blue:#129cf3;--gold:#ffc928;--cream:#fffaf0;--muted:#587086;--shadow:0 8px 24px #17324d18}*{box-sizing:border-box}body{margin:0;background:linear-gradient(135deg,#eef8ff,#fffaf0);color:var(--navy);font:16px/1.5 Arial,sans-serif}header{display:flex;justify-content:space-between;align-items:center;padding:18px 5%;background:#fff;border-bottom:1px solid #d8e8f2;position:sticky;top:0;z-index:2}header a{font-weight:800;color:var(--navy);text-decoration:none}header span{color:var(--muted);font-size:14px}main{max-width:1100px;margin:auto;padding:36px 5%}.layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(220px,260px);gap:24px;align-items:start}.layout>section{min-width:0}.panel,.card{background:#fff;border-radius:20px;padding:24px;box-shadow:var(--shadow)}.eyebrow{color:#597792;text-transform:uppercase;letter-spacing:.08em;font-size:12px;font-weight:800}.teacher{text-align:center;min-width:0}.teacher img{display:block;width:min(190px,100%);height:230px;object-fit:contain;margin:auto}.bubble{background:#fff;border:2px solid #dcecf9;border-radius:18px;padding:12px;font-weight:700;overflow-wrap:anywhere}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:14px;margin-top:22px}.button{min-height:46px;border:0;border-radius:12px;padding:12px 16px;font:inherit;font-weight:800;cursor:pointer;background:var(--blue);color:#fff}.button.gold{background:var(--gold);color:var(--navy)}.button.secondary{background:#edf6fb;color:var(--navy)}.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.actions .button{flex:0 1 auto}button:focus,a:focus,input:focus,textarea:focus,select:focus{outline:3px solid #e19c00;outline-offset:3px}.subject{border-top:5px solid var(--color);text-align:left}.small{color:var(--muted)}textarea,input,select{display:block;width:100%;max-width:100%;margin-top:6px;padding:11px;border:1px solid #b9d2e2;border-radius:10px;font:inherit;color:var(--navy);background:#fff}label{display:block;margin-top:16px;font-weight:700}.panel>h1,.panel>h2,.panel>h3{overflow-wrap:anywhere}.teacher-help{margin-top:24px}.teacher-help .actions{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr))}.teacher-help .button{width:100%}@media(max-width:900px){main{padding-top:28px}.layout{grid-template-columns:minmax(0,1fr) 220px;gap:18px}}@media(max-width:700px){.layout{grid-template-columns:1fr}.teacher{order:-1}.panel,.card{padding:20px}.actions .button{flex:1 1 150px}}