:root{--bg:#0f172a;--panel:#111c31;--text:#e5edf7;--muted:#9fb0c8;--accent:#38bdf8;--ok:#22c55e;--warn:#f97316;--line:#263650}*{box-sizing:border-box}body{margin:0;background:linear-gradient(135deg,#0f172a,#172033);color:var(--text);font-family:Inter,system-ui,-apple-system,Segoe UI,sans-serif}.topbar{display:flex;justify-content:space-between;align-items:center;padding:16px 28px;background:#0b1020;border-bottom:1px solid var(--line);position:sticky;top:0}.brand{font-weight:800;color:#fff;text-decoration:none;font-size:1.25rem}.container{max-width:1180px;margin:auto;padding:28px}.card,.tile{background:rgba(17,28,49,.92);border:1px solid var(--line);border-radius:18px;padding:22px;box-shadow:0 16px 50px rgba(0,0,0,.25)}.narrow{max-width:440px;margin:50px auto}.grid{display:grid;gap:18px}.two{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}.buttons{grid-template-columns:repeat(auto-fit,minmax(210px,1fr))}.tile,.big-button{display:block;color:var(--text);text-decoration:none}.big-button{padding:34px 22px;background:#14233d;border:1px solid #335077;border-radius:18px;text-align:center;font-size:1.4rem;font-weight:800}.big-button small{display:block;font-size:.85rem;color:var(--muted);margin-top:8px}.header-row{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:18px;flex-wrap:wrap}.button,button{border:1px solid #385170;background:#17243b;color:#fff;border-radius:12px;padding:10px 14px;text-decoration:none;cursor:pointer;margin-left:8px}.primary{background:var(--accent);border-color:var(--accent);color:#06111e;font-weight:800}.inline{display:inline}.user{color:var(--muted);margin-right:10px}.alert{padding:12px 14px;border-radius:12px;margin-bottom:14px;background:#1e293b}.alert.success{border-left:4px solid var(--ok)}.alert.error{border-left:4px solid #ef4444}input,select,textarea{width:100%;padding:11px;border-radius:10px;border:1px solid #3a4b67;background:#0b1220;color:#fff;margin-top:6px}.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px}.form-grid label:has(textarea),.form-grid label:has(#id_class_ids){grid-column:1/-1}small,.muted{color:var(--muted)}.actions{grid-column:1/-1;text-align:right}.search{display:flex;gap:8px;margin-bottom:14px}.search input{margin:0}table{width:100%;border-collapse:collapse}th,td{padding:12px;border-bottom:1px solid var(--line);vertical-align:top}th{text-align:left;color:var(--muted)}.pill,.badge{display:inline-block;padding:4px 8px;border-radius:999px;background:#223653;margin:2px;font-size:.82rem}.badge{background:var(--warn);color:#160b02;font-weight:700}.badge.done{background:var(--ok);color:#041507}.roll input[type=checkbox]{width:28px;height:28px}.warning{display:block;color:#fbbf24}.hero h1{font-size:2.1rem;margin-bottom:4px}@media(max-width:680px){.container{padding:16px}.topbar{padding:14px}.button,button{margin:4px}.card{padding:16px}}