:root{--accent: #4f46e5;--accent-hover: #4338ca;--accent-soft: #eef2ff;--bg: #f8fafc;--panel: #ffffff;--border: #e2e8f0;--text: #0f172a;--text-2: #475569;--text-3: #94a3b8;--danger: #dc2626;--ok: #16a34a;--radius: 10px;font-family:Inter,-apple-system,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%}body{background:var(--bg);color:var(--text);font-size:14px}button{font:inherit;cursor:pointer;border:none;background:none}input,textarea,select{font:inherit;color:inherit}.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 14px;border-radius:8px;font-weight:500;background:var(--accent);color:#fff;transition:background .15s}.btn:hover{background:var(--accent-hover)}.btn:disabled{opacity:.5;cursor:default}.btn.secondary{background:var(--panel);color:var(--text-2);border:1px solid var(--border)}.btn.secondary:hover{background:var(--bg)}.btn.danger{background:#fef2f2;color:var(--danger);border:1px solid #fecaca}.btn.sm{padding:5px 10px;font-size:13px}.input{width:100%;padding:9px 12px;border:1px solid var(--border);border-radius:8px;background:var(--panel);outline:none;transition:border .15s,box-shadow .15s}.input:focus{border-color:var(--accent);box-shadow:0 0 0 3px #4f46e51f}.badge{min-width:20px;height:20px;padding:0 6px;border-radius:10px;background:var(--accent);color:#fff;font-size:11px;font-weight:600;display:inline-flex;align-items:center;justify-content:center}.badge.muted{background:var(--border);color:var(--text-2)}.login-wrap{height:100%;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#eef2ff,#f8fafc,#ecfeff)}.login-card{width:380px;background:var(--panel);border:1px solid var(--border);border-radius:16px;padding:36px;box-shadow:0 10px 40px #0f172a14;display:flex;flex-direction:column;gap:14px}.login-logo{display:flex;align-items:center;gap:10px;margin-bottom:8px}.login-logo .mark{width:38px;height:38px;border-radius:10px;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700}.login-logo h1{font-size:20px}.layout{display:grid;grid-template-columns:250px 380px 1fr;height:100%}.sidebar{background:var(--panel);border-right:1px solid var(--border);display:flex;flex-direction:column;overflow-y:auto}.side-head{padding:14px 14px 8px;display:flex;align-items:center;gap:8px}.side-head .mark{width:30px;height:30px;border-radius:8px;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:13px}.side-head b{font-size:15px}.compose-btn{margin:8px 14px 12px;justify-content:center}.side-section{padding:4px 8px 10px}.side-label{padding:6px 10px 4px;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--text-3)}.side-item{width:100%;display:flex;align-items:center;gap:8px;padding:7px 10px;border-radius:8px;color:var(--text-2);text-align:left}.side-item:hover{background:var(--bg)}.side-item.active{background:var(--accent-soft);color:var(--accent);font-weight:500}.side-item .grow{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.side-foot{margin-top:auto;border-top:1px solid var(--border);padding:10px 14px}.sync-err{color:var(--danger);font-size:11px}.list-pane{border-right:1px solid var(--border);display:flex;flex-direction:column;background:var(--panel);min-width:0}.list-head{padding:12px;border-bottom:1px solid var(--border);display:flex;gap:8px;align-items:center}.list-scroll{overflow-y:auto;flex:1}.msg-item{width:100%;text-align:left;padding:10px 14px;border-bottom:1px solid var(--border);display:flex;flex-direction:column;gap:3px}.msg-item:hover{background:var(--bg)}.msg-item.active{background:var(--accent-soft)}.msg-item .row1{display:flex;justify-content:space-between;gap:8px}.msg-item .from{font-weight:400;color:var(--text-2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.msg-item.unread .from,.msg-item.unread .subj{font-weight:600;color:var(--text)}.msg-item .time{color:var(--text-3);font-size:12px;flex-shrink:0}.msg-item .subj{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.msg-item .snip{color:var(--text-3);font-size:12.5px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.dot{width:8px;height:8px;border-radius:50%;background:var(--accent);display:inline-block;flex-shrink:0}.read-pane{display:flex;flex-direction:column;min-width:0;background:var(--bg)}.read-head{padding:16px 20px 12px;background:var(--panel);border-bottom:1px solid var(--border)}.read-head h2{font-size:17px;margin-bottom:8px}.read-meta{display:flex;align-items:center;gap:10px;color:var(--text-2);font-size:13px;flex-wrap:wrap}.avatar{width:34px;height:34px;border-radius:50%;background:var(--accent-soft);color:var(--accent);display:inline-flex;align-items:center;justify-content:center;font-weight:600;flex-shrink:0}.read-actions{display:flex;gap:8px;margin-top:12px;flex-wrap:wrap}.read-body{flex:1;overflow:hidden;display:flex;flex-direction:column}.read-body iframe{flex:1;border:none;width:100%;background:#fff}.read-body pre{flex:1;overflow:auto;padding:20px;background:#fff;white-space:pre-wrap;font:inherit}.att-row{padding:10px 20px;background:var(--panel);border-top:1px solid var(--border);display:flex;gap:8px;flex-wrap:wrap}.att-chip{display:inline-flex;gap:6px;align-items:center;padding:6px 12px;border:1px solid var(--border);border-radius:20px;font-size:13px;color:var(--text-2);text-decoration:none}.att-chip:hover{border-color:var(--accent);color:var(--accent)}.banner{padding:8px 20px;background:#fffbeb;border-bottom:1px solid #fde68a;color:#92400e;font-size:13px;display:flex;gap:10px;align-items:center}.empty{flex:1;display:flex;align-items:center;justify-content:center;color:var(--text-3);flex-direction:column;gap:8px}.overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0f172a66;display:flex;align-items:center;justify-content:center;z-index:50}.modal{background:var(--panel);border-radius:14px;width:640px;max-width:94vw;max-height:90vh;overflow-y:auto;box-shadow:0 20px 60px #0f172a40;display:flex;flex-direction:column}.modal-head{padding:14px 18px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center}.modal-head b{font-size:15px}.modal-body{padding:16px 18px;display:flex;flex-direction:column;gap:10px}.modal-foot{padding:12px 18px;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:8px}.composer textarea{min-height:220px;resize:vertical}.field{display:flex;flex-direction:column;gap:4px}.field label{font-size:12.5px;font-weight:500;color:var(--text-2)}.admin-wrap{flex:1;overflow-y:auto;padding:24px}.admin-inner{max-width:900px;margin:0 auto}.tabs{display:flex;gap:4px;margin-bottom:18px;border-bottom:1px solid var(--border)}.tab{padding:9px 16px;color:var(--text-2);border-bottom:2px solid transparent;font-weight:500}.tab.active{color:var(--accent);border-bottom-color:var(--accent)}.card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:14px}.card-head{padding:12px 16px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center}table.tbl{width:100%;border-collapse:collapse}.tbl th{text-align:left;padding:9px 16px;font-size:12px;color:var(--text-3);text-transform:uppercase;letter-spacing:.04em;border-bottom:1px solid var(--border)}.tbl td{padding:10px 16px;border-bottom:1px solid var(--border);vertical-align:middle}.tbl tr:last-child td{border-bottom:none}.pill{padding:3px 10px;border-radius:20px;font-size:12px;font-weight:500}.pill.admin{background:var(--accent-soft);color:var(--accent)}.pill.member{background:var(--bg);color:var(--text-2);border:1px solid var(--border)}.pill.ok{background:#f0fdf4;color:var(--ok)}.pill.err{background:#fef2f2;color:var(--danger)}.check-grid{display:flex;flex-direction:column;gap:6px}.check-grid label{display:flex;gap:8px;align-items:center;font-size:13.5px}.toast{position:fixed;bottom:20px;left:50%;transform:translate(-50%);background:var(--text);color:#fff;padding:10px 18px;border-radius:10px;z-index:100;box-shadow:0 8px 24px #0003;font-size:13.5px}.toast.error{background:var(--danger)}.spin{width:18px;height:18px;border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}@media(max-width:1000px){.layout{grid-template-columns:220px 1fr}.read-pane.mobile-hidden,.list-pane.mobile-hidden{display:none}}