:root{--bg: #F7F6FB;--surface: #FFFFFF;--line: #E9E6F4;--line-strong: #D9D3EE;--text: #0F0B1E;--text-2: #2B2640;--muted: #5B5670;--brand: #6C3BF5;--brand-ink: #4B22C4;--brand-tint: #F1ECFF;--danger: #9B1C12;--danger-line: #D95A4B;--lime: #D7FF5F}*{box-sizing:border-box}html,body{margin:0;background:var(--bg);color:var(--text)}body{font-family:Plus Jakarta Sans,system-ui,sans-serif;font-size:15px;line-height:1.5}a{color:var(--brand-ink);text-decoration:none}a:hover{text-decoration:underline}h1,h2,h3{margin:0;letter-spacing:-.01em}h1,h2{font-size:24px;font-weight:800}h3{font-size:13px;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.06em}p{margin:0}.muted{color:var(--muted)}.small{font-size:13px}.center{text-align:center;padding:16px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}.stack{display:flex;flex-direction:column;gap:16px}label{display:block;margin-bottom:6px;font-size:14px;font-weight:600;color:var(--text-2)}input{width:100%;min-height:46px;padding:10px 14px;border:1px solid var(--line-strong);border-radius:12px;font:inherit;font-size:16px;color:var(--text);background:var(--surface)}input:focus-visible,button:focus-visible,a:focus-visible{outline:3px solid #C9B8FF;outline-offset:2px}.btn{min-height:44px;padding:0 18px;display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:12px;border:1px solid transparent;font:inherit;font-weight:700;cursor:pointer;white-space:nowrap}.btn:hover{text-decoration:none}.btn:disabled{opacity:.6;cursor:default}.btn.primary{background:var(--brand);color:#fff}.btn.primary:hover:not(:disabled){background:#5b2be0}.btn.ghost{background:var(--surface);color:var(--text-2);border-color:var(--line-strong)}.btn.ghost:hover:not(:disabled){background:var(--brand-tint)}.btn.danger{background:var(--surface);color:var(--danger);border-color:var(--danger-line)}.btn.danger:hover:not(:disabled){background:#fde8e6}.btn.wide{width:100%}.link{background:none;border:0;padding:0;font:inherit;font-weight:700;color:var(--brand-ink);cursor:pointer}.chip{min-height:44px;padding:0 14px;border-radius:999px;border:1px solid var(--line-strong);background:var(--surface);font:inherit;font-weight:600;color:var(--text-2);cursor:pointer;white-space:nowrap}.chip.on{background:var(--text);color:#fff;border-color:var(--text)}.pill{padding:3px 9px;border-radius:999px;background:var(--brand-tint);color:var(--brand-ink);font-size:12px;font-weight:700}.tag{padding:2px 8px;border-radius:6px;background:#f1eef8;color:#4a4560;font-size:12px;font-weight:700}.error{padding:10px 14px;border-radius:12px;background:#fde8e6;color:var(--danger);font-weight:600}.field-error{margin-top:6px;color:var(--danger);font-size:13px;font-weight:600}.card{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:22px;display:flex;flex-direction:column;gap:12px}.brand{display:flex;align-items:center;gap:10px}.brand img{display:block;width:auto}.login{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}.login-card{width:100%;max-width:420px;padding:36px;gap:22px}.login-card h1{font-size:28px;margin-bottom:4px}.shell{min-height:100vh;display:flex;flex-direction:column}.topbar{position:sticky;top:0;z-index:5;display:flex;align-items:center;gap:16px;padding:12px 24px;background:#ffffffeb;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}.topbar .brand{margin-right:auto}.topbar-count{font-weight:700;color:var(--brand-ink)}.split{flex:1;display:grid;grid-template-columns:minmax(320px,420px) minmax(0,1fr);min-height:0}.list-pane{border-right:1px solid var(--line);background:var(--surface);padding:20px 16px;display:flex;flex-direction:column;gap:14px;height:calc(100vh - 61px);overflow-y:auto;position:sticky;top:61px}.list-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding:0 4px}.filters{display:flex;gap:8px}.filters input{flex:1;min-width:0}.list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}.item{display:flex;flex-direction:column;gap:4px;padding:12px;border-radius:12px;color:var(--text)}.item:hover{background:#faf8ff;text-decoration:none}.item.active{background:var(--brand-tint)}.row1{display:flex;align-items:center;gap:8px}.row1 .name{font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.item.unread .name{font-weight:800}.row1 time{margin-left:auto;flex:none;font-size:13px;color:var(--muted)}.row2{display:flex;align-items:center;gap:8px;font-size:13px;min-width:0}.row2 .muted{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.preview{font-size:14px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.dot{flex:none;width:8px;height:8px;border-radius:50%;background:var(--brand)}.empty{padding:24px 12px;color:var(--muted);text-align:center}.detail-pane{padding:28px 32px;display:flex;flex-direction:column;gap:18px;max-width:920px;width:100%}.placeholder{margin:auto;color:var(--muted);padding:48px 0}.back{display:none;font-weight:700;min-height:44px;align-items:center}.d-head{display:flex;flex-wrap:wrap;align-items:flex-start;justify-content:space-between;gap:16px}.d-title{display:flex;flex-direction:column;gap:6px;min-width:0}.actions{display:flex;flex-wrap:wrap;gap:8px}.message{font-size:16px;line-height:1.7;color:var(--text-2);white-space:pre-wrap;overflow-wrap:anywhere}.details{margin:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px 24px}.details dt{font-size:13px;font-weight:700;color:var(--muted)}.details dd{margin:2px 0 0;font-weight:600;overflow-wrap:anywhere}@media(max-width:820px){.split{grid-template-columns:1fr}.list-pane{position:static;height:auto;border-right:0}.split.has-detail .list-pane{display:none}.split:not(.has-detail) .detail-pane{display:none}.detail-pane{padding:16px}.back{display:inline-flex}.topbar{padding:10px 16px}.topbar-count{display:none}}