:root { color-scheme: light; --bg:#f6f8fb; --card:#fff; --ink:#14213d; --muted:#667085; --line:#d9e0ea; --blue:#1f6feb; --green:#12805c; --red:#b42318; }
*{box-sizing:border-box} body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--ink)}
.topbar{display:flex;justify-content:space-between;gap:16px;align-items:center;padding:24px 32px;background:linear-gradient(135deg,#102a43,#1f6feb);color:white}.eyebrow{margin:0 0 4px;text-transform:uppercase;letter-spacing:.12em;font-size:12px;opacity:.78}h1{margin:0;font-size:30px}.toolbar{display:flex;gap:8px;flex-wrap:wrap}button{border:0;border-radius:10px;padding:10px 14px;background:var(--blue);color:white;font-weight:700;cursor:pointer}button.secondary,.toolbar button{background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.3)}button:hover{filter:brightness(.95)}main{padding:24px;display:grid;gap:18px}.panel{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:18px;box-shadow:0 8px 24px rgba(16,42,67,.06)}.controls{display:flex;gap:12px;align-items:end;flex-wrap:wrap}.section-title{display:flex;justify-content:space-between;gap:16px;align-items:end;margin-bottom:14px}.section-title h2{margin:0}.section-title p{margin:0;color:var(--muted);font-size:14px}label{display:grid;gap:6px;font-weight:700;font-size:13px;color:#344054}input,select,textarea{border:1px solid var(--line);border-radius:10px;padding:10px 12px;font:inherit;background:white}textarea{resize:vertical}.status{font-size:13px;color:var(--muted)}.grid-wrap{overflow:auto;border:1px solid var(--line);border-radius:14px}.roster-table{width:100%;border-collapse:collapse;min-width:900px}.roster-table th,.roster-table td{border-bottom:1px solid var(--line);border-right:1px solid var(--line);padding:10px;vertical-align:top}.roster-table th{position:sticky;top:0;background:#eef4ff;text-align:left;font-size:12px;text-transform:uppercase;letter-spacing:.04em}.day-card{display:grid;gap:6px}.assignment{border-left:4px solid var(--blue);background:#f8fbff;border-radius:10px;padding:8px;cursor:pointer}.assignment strong{display:block}.assignment small{color:var(--muted)}.assignment.locked{border-color:var(--red)}.assignment.changed{border-color:var(--green)}.editor form{display:grid;grid-template-columns:repeat(4,minmax(160px,1fr));gap:14px}.wide{grid-column:1/-1}.actions{grid-column:1/-1;display:flex;gap:10px}@media(max-width:760px){.topbar{display:grid}.editor form{grid-template-columns:1fr}.section-title{display:grid}.controls{align-items:stretch}.controls label{width:100%}}