:root{--primary:#b7791f;--bg:#faf7f0;--surface:#ffffff;--text:#1f1b16;--muted:#6b6257;--border:#e6dfd2;--danger:#b42318;--ok:#067647;--radius:10px}@media (prefers-color-scheme:dark){:root{--bg:#17140f;--surface:#221e17;--text:#f3ede2;--muted:#a99f90;--border:#3a3328}}*{box-sizing:border-box}body,html{margin:0;height:100%}body{background:var(--bg);color:var(--text);font:15px/1.5 system-ui,-apple-system,Segoe UI,Roboto,sans-serif}a{color:var(--primary)}h1{font-size:1.5rem;margin:0 0 .5rem}h2{font-size:1.1rem;margin:1.5rem 0 .5rem}.muted{color:var(--muted)}.small{font-size:.85rem}.error{color:var(--danger)}.ok{color:var(--ok)}.center{min-height:100%;display:grid;place-items:center;padding:16px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px;width:100%;max-width:420px}.page{max-width:960px;margin:0 auto;padding:24px 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iframe{position:absolute;inset:0;width:100%;height:100%;border:0}.lesson-group{margin-bottom:12px}.lesson-list{list-style:none;padding:0;margin:6px 0 0;display:grid;grid-gap:2px;gap:2px}.lesson-list li{padding:6px 8px;border-radius:8px;font-size:.92rem}.lesson-list li.on{background:color-mix(in srgb,var(--primary) 14%,var(--surface))}.lesson-list a{color:var(--text);text-decoration:none}textarea{font:inherit;padding:8px 10px;border-radius:8px;border:1px solid var(--border);background:var(--bg);color:var(--text)}.form label.check{display:flex;align-items:center;gap:8px}.material{margin:12px 0;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);padding:8px 12px}.material summary{cursor:pointer;font-weight:600}.material iframe{width:100%;height:70vh;border:0;border-radius:8px}.brand-preview{display:flex;gap:14px;align-items:center;padding:14px 16px;border:2px solid;border-radius:var(--radius);background:var(--surface);margin:12px 0}.brand-preview 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var(--border);border-radius:var(--radius);background:#fff;margin:12px 0}.calgrid{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));grid-gap:4px;gap:4px}.calhead{text-align:center;font-size:.75rem;color:var(--muted);padding:2px 0}.calday{border:1px solid var(--border);border-radius:8px;background:var(--surface);padding:4px;min-height:84px;display:flex;flex-direction:column;gap:3px;min-width:0}.calday.today{border-color:var(--primary);box-shadow:0 0 0 1px var(--primary)}.calday.dim{opacity:.45}.calday.closed{background:repeating-linear-gradient(45deg,var(--surface),var(--surface) 6px,rgba(0,0,0,.04) 6px,rgba(0,0,0,.04) 12px)}.caldate{font-size:.75rem;font-weight:700}.calappt{display:block;font-size:.72rem;line-height:1.25;border-left:3px solid var(--primary);background:rgba(0,0,0,.04);padding:2px 4px;border-radius:4px;text-decoration:none;color:inherit;overflow:hidden;text-overflow:ellipsis}.calgrid[data-view=semana] .calday{min-height:160px}.cells{display:grid;grid-template-columns:repeat(auto-fill,minmax(78px,1fr));grid-gap:6px;gap:6px}.cell{display:flex;flex-direction:column;align-items:center;padding:6px 4px;border:1px solid var(--border);border-radius:8px;background:var(--surface);cursor:pointer;font:inherit;color:inherit}.cell span{font-size:.7rem;color:var(--muted)}.cell-B{background:#dcfce7;border-color:#16a34a}.cell-P{background:#dbeafe;border-color:#2563eb}.cell-V{background:#ede9fe;border-color:#7c3aed}.notes li{border-left:3px solid var(--border);padding-left:8px;margin-bottom:8px}@media (max-width:640px){.calgrid[data-view=mes] .calappt span{display:none}.calday{min-height:56px}}.kanban{display:flex;gap:10px;overflow-x:auto;padding-bottom:8px;align-items:flex-start}.kcol{flex:0 0 240px;background:rgba(0,0,0,.035);border:1px solid var(--border);border-radius:10px;padding:6px;display:flex;flex-direction:column;gap:6px;min-height:120px}.kcol.over{outline:2px dashed var(--primary)}.kcol header{display:flex;justify-content:space-between;align-items:baseline;border-top:3px solid;padding:4px 4px 2px}.kcard{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:8px;display:flex;flex-direction:column;gap:2px;cursor:-webkit-grab;cursor:grab}.kcard.drag{opacity:.4}.kcard select{margin-top:4px;font-size:.75rem;padding:2px 4px}.kname{font-weight:700;text-decoration:none;color:inherit}.ktags{display:flex;flex-wrap:wrap;gap:3px}.ktag{color:#fff;font-size:.65rem;padding:1px 6px;border-radius:999px}.kempty{text-align:center;padding:14px 0}.warn{color:#b91c1c;font-weight:600}.bar{height:8px;border-radius:4px;background:var(--primary);min-width:2px}