.nt-page,.nt-admin{max-width:820px;margin:0 auto;padding-bottom:60px}
.nt-intro h1{margin:0 0 4px;font-size:28px}.nt-intro p{margin:0 0 20px;color:var(--muted)}
.nt-notice{padding:14px 16px;border-radius:10px;background:#fff7e6;border:1px solid #f5d9a6;color:#8a5a00}.nt-notice a{color:var(--blue);font-weight:600}
.nt-toolbar{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:14px}
.nt-tabs,.nt-actions{display:flex;gap:8px;flex-wrap:wrap}
.nt-tabs button{border:1px solid var(--line);background:#fff;border-radius:999px;padding:7px 14px;font:inherit;font-size:13px;cursor:pointer;color:var(--ink)}
.nt-tabs button[aria-selected="true"]{background:var(--blue);border-color:var(--blue);color:#fff}
.nt-tabs b{margin-left:4px;font-weight:600;opacity:.8}
.nt-actions button{border:0;background:none;color:var(--blue);font:inherit;font-size:13px;font-weight:600;cursor:pointer;padding:6px 4px}.nt-actions button:disabled{color:var(--muted);cursor:default;font-weight:500}
.nt-list{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.nt-item{display:flex;align-items:stretch;background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.nt-item.is-unread{border-color:#c9d5fb;background:#f7f9ff}
.nt-main{flex:1;display:flex;gap:14px;align-items:flex-start;text-align:left;border:0;background:none;padding:14px 16px;font:inherit;color:var(--ink);cursor:pointer}
.nt-main:hover{background:rgba(64,94,208,.05)}
.nt-ico{flex:none;width:38px;height:38px;border-radius:50%;display:grid;place-items:center;font-size:12px;font-weight:700;background:var(--blue-soft);color:var(--blue)}
.nt-ico--admin{background:#fdecea;color:#b42318}.nt-ico--payment{background:#e7f6ee;color:#13794a}.nt-ico--coach{background:#fff3d6;color:#8a5a00}.nt-ico--survey{background:#efe9fb;color:#6b3fc2}.nt-ico--exam{background:#e3f4fb;color:#0c6d94}
.nt-text{flex:1;display:grid;gap:3px;min-width:0}
.nt-title{font-size:15px}.nt-item:not(.is-unread) .nt-title{font-weight:500}
.nt-body{color:#4b5563;font-size:13.5px;overflow-wrap:anywhere}
.nt-meta{color:var(--muted);font-size:12px}.nt-meta em{font-style:normal;color:var(--blue)}
.nt-dot{flex:none;width:9px;height:9px;margin-top:6px;border-radius:50%;background:var(--blue)}
.nt-del{flex:none;width:44px;border:0;border-left:1px solid var(--line);background:none;color:var(--muted);font-size:20px;cursor:pointer}.nt-del:hover{background:#fdecea;color:#b42318}
.nt-empty{padding:34px 16px;text-align:center;color:var(--muted);background:#fff;border:1px dashed var(--line);border-radius:12px}
.nt-foot{margin-top:18px;font-size:13px;color:var(--muted)}.nt-foot a{color:var(--blue)}
/* admin: send a notification */
.nt-form{display:grid;gap:14px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px}
.nt-form label{display:grid;gap:6px;font-weight:600;font-size:13.5px}
.nt-form input[type=text],.nt-form input[type=email],.nt-form select,.nt-form textarea{font:inherit;font-weight:400;border:1px solid var(--line);border-radius:8px;padding:9px 11px;box-sizing:border-box;width:100%}
.nt-form textarea{min-height:90px;resize:vertical}
.nt-form small{font-weight:400;color:var(--muted)}
.nt-check{display:flex!important;grid-template-columns:none;align-items:flex-start;gap:10px!important;font-weight:400!important}
.nt-send{justify-self:start;border:0;border-radius:8px;background:var(--blue);color:#fff;font:inherit;font-weight:600;padding:10px 22px;cursor:pointer}.nt-send:disabled{opacity:.6;cursor:default}
.nt-result{margin:0;padding:10px 14px;border-radius:8px;background:#e7f6ee;color:#13794a}.nt-result.is-error{background:#fdecea;color:#b42318}
@media(max-width:560px){.nt-main{padding:12px}}
.nt-ico--study{background:#e3f2fb;color:#0b6a99}
.nt-ico--slide{background:#fdeee3;color:#b4540a}
.nt-ico--document{background:#e8f5ec;color:#1b6b3a}