:root{--ink: #161b22;--paper: #ffffff;--bg: #f5f6f8;--hair: #e3e6ea;--muted: #7c8590;--accent: #d93a00;--ok: #1f7a4d}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;font-family:-apple-system,Helvetica Neue,Segoe UI,Arial,sans-serif;color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased}button{font:inherit;cursor:pointer}input{font:inherit}.login-wrap{min-height:100%;display:grid;place-items:center;padding:24px}.login-card{width:100%;max-width:360px;background:var(--paper);border:1px solid var(--hair);border-radius:12px;padding:32px 28px;display:flex;flex-direction:column;gap:14px;box-shadow:0 1px 2px #0000000a}.brandmark{width:44px;height:44px;border-radius:9px;background:var(--ink);color:#fff;display:grid;place-items:center;font-weight:700;letter-spacing:1px;font-size:15px}.brandmark.sm{width:28px;height:28px;font-size:11px;border-radius:7px}.login-card h1{font-size:20px;margin:6px 0 0}.login-card .sub{color:var(--muted);margin:0 0 6px;font-size:13.5px}.login-card input,.confirm input{width:100%;padding:11px 12px;border:1px solid var(--hair);border-radius:8px;outline:none}.login-card input:focus,.confirm input:focus{border-color:var(--ink)}.login-card button{padding:11px;border:none;border-radius:8px;background:var(--ink);color:#fff;font-weight:600}.login-card button:disabled{opacity:.5;cursor:default}.error{color:#b3261e;font-size:13px}.app{max-width:760px;margin:0 auto;padding:0 18px 64px}.topbar{position:sticky;top:0;background:var(--bg);padding:18px 0 14px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--hair)}.topbar .title{display:flex;align-items:center;gap:10px;font-weight:600;font-size:16px}.topbar .count{margin-left:4px;font-size:12px;font-weight:600;color:var(--muted);background:#eceef1;padding:2px 9px;border-radius:20px}.actions{display:flex;gap:8px}button.ghost{background:transparent;border:1px solid var(--hair);border-radius:8px;padding:7px 12px;color:var(--ink);font-size:13px}button.ghost:hover{border-color:var(--ink)}.list{display:flex;flex-direction:column;gap:16px;padding-top:18px}.status{color:var(--muted);padding:28px 0;text-align:center}.status.error{color:#b3261e}.empty{text-align:center;padding:64px 16px;color:var(--muted)}.empty h2{color:var(--ink);margin:0 0 6px}.card{background:var(--paper);border:1px solid var(--hair);border-radius:12px;padding:18px;box-shadow:0 1px 2px #00000008}.card-head{display:flex;align-items:center;justify-content:space-between;gap:12px}.meta{display:flex;align-items:center;gap:9px}.brand{font-weight:700}.pill{font-size:12px;font-weight:600;color:var(--accent);background:#fbe9e1;padding:2px 9px;border-radius:20px}.thread-link{font-size:13px;color:var(--accent);text-decoration:none;white-space:nowrap}.thread-link:hover{text-decoration:underline}.thread-title{font-weight:600;margin:12px 0 0;line-height:1.4}.thread-body{color:var(--muted);font-size:13px;margin-top:6px;line-height:1.5;max-height:84px;overflow:auto;white-space:pre-wrap}.reply-label{display:flex;align-items:center;justify-content:space-between;margin:16px 0 6px;font-size:11px;letter-spacing:.6px;text-transform:uppercase;color:var(--muted)}button.copy{background:transparent;border:1px solid var(--hair);border-radius:6px;padding:3px 10px;font-size:12px;color:var(--ink);letter-spacing:0;text-transform:none}button.copy:hover{border-color:var(--ink)}.reply{margin:0;background:#f7f8fa;border:1px solid var(--hair);border-radius:8px;padding:13px 14px;white-space:pre-wrap;word-wrap:break-word;line-height:1.55;font-size:14px;font-family:inherit}.confirm{display:flex;gap:8px;margin-top:14px}.confirm input{flex:1}.confirm button{border:none;border-radius:8px;background:var(--ok);color:#fff;font-weight:600;padding:11px 16px;white-space:nowrap}.confirm button:disabled{opacity:.45;cursor:default}.card-error{color:#b3261e;font-size:13px;margin-top:8px}