.ch{--bg:#e6e9e7;--surface:#fbfcfb;--surface-2:#eef1ef;--panel:#f2f4f2;--ink:#182827;--ink-2:#516260;--ink-3:#8a9997;--line:#d4dbd8;--accent:#2f7a55;--accent-ink:#fff;--danger:#b23a3a;--sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;--mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,monospace;font-family:var(--sans);color:var(--ink)}.ch-center{min-height:100vh;background:var(--bg);display:flex;align-items:center;justify-content:center;padding:24px}.ch-card{width:100%;max-width:400px;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:28px;box-shadow:0 8px 30px #18282714}.ch-card h1{font-size:19px;margin:0 0 4px}.ch-card .ch-sub{color:var(--ink-2);font-size:13.5px;margin:0 0 20px;line-height:1.5}.ch-brand{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);font-weight:700;margin-bottom:14px}.ch-field{margin-bottom:13px}.ch-field label{display:block;font-size:12px;color:var(--ink-2);margin-bottom:5px;font-weight:600}.ch-input,.ch-select,.ch-textarea{width:100%;box-sizing:border-box;border:1px solid var(--line);background:var(--surface);border-radius:9px;padding:9px 11px;font-size:14px;color:var(--ink);outline:0}.ch-input:focus,.ch-select:focus,.ch-textarea:focus{border-color:var(--accent)}.ch-textarea{resize:vertical;min-height:70px;font-family:inherit}.ch-btn{width:100%;border:0;background:var(--accent);color:var(--accent-ink);border-radius:9px;padding:10px 14px;font-size:14px;font-weight:600;cursor:pointer;display:inline-flex;gap:7px;align-items:center;justify-content:center}.ch-btn:disabled{opacity:.55;cursor:default}.ch-btn.ghost{background:transparent;color:var(--ink-2);border:1px solid var(--line)}.ch-btn.danger{background:transparent;color:var(--danger);border:1px solid var(--line)}.ch-btn.sm{width:auto;padding:7px 12px;font-size:13px}.ch-link{background:0;border:0;color:var(--accent);cursor:pointer;font-size:13px;padding:0}.ch-msg{font-size:13px;padding:9px 11px;border-radius:8px;margin-bottom:13px}.ch-msg.err{background:#f4dede;color:#7d2a2a}.ch-msg.ok{background:#dcefe3;color:#1f5a3c}.ch-help{font-size:12px;color:var(--ink-3);margin:6px 0 0;line-height:1.5}.ch-topbar{position:sticky;top:0;z-index:40;display:flex;align-items:center;gap:10px;flex-wrap:wrap;background:var(--panel);border-bottom:1px solid var(--line);padding:9px 16px}.ch-topbar .ch-brand{margin:0}.ch-spacer{flex:1}.ch-switch{display:inline-flex;align-items:center;gap:6px;background:var(--surface);border:1px solid var(--line);border-radius:9px;padding:6px 9px}.ch-switch label{font-size:11px;color:var(--ink-3);text-transform:uppercase;letter-spacing:.05em}.ch-switch select{border:0;outline:0;background:transparent;font-size:13.5px;color:var(--ink);font-weight:600;max-width:200px}.ch-icon-btn{border:1px solid var(--line);background:var(--surface);border-radius:9px;padding:7px 9px;color:var(--ink-2);display:inline-flex;align-items:center;gap:6px;cursor:pointer;font-size:13px}.ch-icon-btn:hover{color:var(--ink)}.ch-user{font-size:12.5px;color:var(--ink-3)}.ch-settings{min-height:100vh;background:var(--bg)}.ch-settings-body{max-width:820px;margin:0 auto;padding:24px 20px 60px}.ch-tabs{display:flex;gap:6px;border-bottom:1px solid var(--line);margin-bottom:22px}.ch-tab{border:0;background:0;padding:10px 14px;font-size:14px;color:var(--ink-2);cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-1px}.ch-tab.active{color:var(--ink);border-bottom-color:var(--accent);font-weight:600}.ch-section{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:20px;margin-bottom:18px}.ch-section h2{font-size:15px;margin:0 0 3px}.ch-section .ch-sub{color:var(--ink-2);font-size:13px;margin:0 0 16px;line-height:1.5}.ch-row{display:flex;gap:14px;flex-wrap:wrap}.ch-row>.ch-field{flex:1 1 200px}.ch-note{font-size:12.5px;color:var(--ink-2);background:var(--surface-2);border:1px solid var(--line);border-radius:9px;padding:11px 13px;line-height:1.55}.ch-switch-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 0}.ch-badge{font-size:11px;font-weight:700;padding:2px 8px;border-radius:20px;text-transform:uppercase;letter-spacing:.04em}.ch-badge.off{background:var(--surface-2);color:var(--ink-3)}.ch-badge.on{background:#dcefe3;color:#1f5a3c}.ch-toggle{position:relative;width:40px;height:23px;flex:0 0 auto}.ch-toggle input{opacity:0;width:0;height:0}.ch-toggle span{position:absolute;top:0;right:0;bottom:0;left:0;background:var(--line);border-radius:20px;transition:.15s;cursor:pointer}.ch-toggle span:before{content:"";position:absolute;width:17px;height:17px;left:3px;top:3px;background:#fff;border-radius:50%;transition:.15s}.ch-toggle input:checked+span{background:var(--accent)}.ch-toggle input:checked+span:before{transform:translate(17px)}.ch-help-page{min-height:100vh;background:var(--bg)}.ch-help-body{max-width:960px;margin:0 auto;padding:22px 20px 60px;display:grid;grid-template-columns:210px 1fr;gap:26px;align-items:start}.ch-help-nav{position:sticky;top:66px;display:flex;flex-direction:column;gap:2px}.ch-help-nav button{text-align:left;border:0;background:0;padding:8px 12px;border-radius:8px;font-size:13.5px;color:var(--ink-2);cursor:pointer;border-left:2px solid transparent}.ch-help-nav button:hover{background:var(--surface-2)}.ch-help-nav button.active{background:var(--surface);color:var(--ink);font-weight:600;border-left-color:var(--accent)}.ch-help-content{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:24px 30px}.ch-help-content h1{font-size:20px;margin:0 0 6px}.ch-help-content h2{font-size:15.5px;margin:22px 0 8px}.ch-help-content h2:first-child{margin-top:2px}.ch-help-content p{font-size:14px;line-height:1.65;color:var(--ink);margin:0 0 10px}.ch-help-content p.lead{color:var(--ink-2)}.ch-help-content ul{margin:0 0 12px;padding-left:18px}.ch-help-content li{font-size:14px;line-height:1.6;margin-bottom:5px}.ch-help-content code{font-family:var(--mono);font-size:12.5px;background:var(--surface-2);border:1px solid var(--line);border-radius:5px;padding:1px 5px}.ch-help-content table{border-collapse:collapse;width:100%;margin:6px 0 14px;font-size:13.5px}.ch-help-content th,.ch-help-content td{border:1px solid var(--line);padding:7px 10px;text-align:left;vertical-align:top}.ch-help-content th{background:var(--surface-2);font-weight:600}.ch-help-content .note{background:var(--surface-2);border:1px solid var(--line);border-radius:9px;padding:11px 13px;font-size:13px;line-height:1.55;color:var(--ink-2);margin:0 0 12px}.ch-flow{counter-reset:step;list-style:none;padding:0;margin:0}.ch-flow li{counter-increment:step;position:relative;padding-left:30px;margin-bottom:9px}.ch-flow li:before{content:counter(step);position:absolute;left:0;top:1px;width:20px;height:20px;border-radius:50%;background:var(--accent);color:#fff;font-size:11px;font-weight:700;display:flex;align-items:center;justify-content:center}.ch-pill{display:inline-block;padding:1px 8px;border-radius:20px;font-size:11.5px;font-weight:600;white-space:nowrap}.ch-pill.g{background:#dcefe3;color:#1f5a3c}.ch-pill.a{background:#f6ecd6;color:#8a5a12}@media (max-width:720px){.ch-help-body{grid-template-columns:1fr}.ch-help-nav{position:static;flex-direction:row;flex-wrap:wrap;gap:4px}}