body{font-family:Arial,Helvetica,sans-serif;margin:0;padding:0;background:#f5f7fb}.app-container{max-width:1000px;margin:24px auto;padding:16px;background:#fff;border-radius:8px;box-shadow:0 6px 18px #0000000f}.header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:12px;border-bottom:1px solid #e0e0e0}.logo{font-size:1.6rem;font-weight:700;color:#333}.nav-link{text-decoration:none;color:#007bff;font-weight:500;padding:6px 12px;border-radius:4px;transition:all .2s ease}.nav-link:hover{background-color:#e6f0ff;color:#0056b3}.task-card{border:1px solid #e6e9ef;padding:12px;border-radius:6px;margin-bottom:12px}.small{font-size:.9rem;color:#555}.btn{padding:8px 12px;border-radius:6px;border:none;cursor:pointer}.btn-primary{background:#2563eb;color:#fff}.btn-danger{background:#ef4444;color:#fff}.btn-ghost{background:transparent;border:1px solid #e6e9ef}#calendar{font-size:12px;margin:auto}