:root{--blue:#2563eb;--blue-dark:#1d4ed8;--blue-soft:#eff6ff;--bot-bg:#f0f5ff;--bot-line:#a7c1f7;--client-bg:#f7f8fa;--client-line:#d6dbe3;--owner-bg:#e8f1fe;--text:#111827;--muted:#6b7280;--line:#e5e7eb;--line-soft:#f1f3f6;--amber:#f59e0b;--radius:10px;--demo-bar:38px;color-scheme:light}*{box-sizing:border-box}body,html{height:100%}body{margin:0;color:var(--text);background:#fff;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Inter,system-ui,sans-serif;font-size:15px;line-height:1.45}a{color:inherit;text-decoration:none}.topbar{display:flex;align-items:stretch;gap:28px;height:56px;padding:0 24px;border-bottom:1px solid var(--line)}.topbar__brand{display:flex;align-items:center;font-weight:700;font-size:17px}.topbar__nav{display:flex;gap:24px}.topbar__link{display:flex;align-items:center;color:var(--muted);border-bottom:2px solid transparent;font-size:15px}.topbar__link--active{color:var(--blue);font-weight:600;border-bottom-color:var(--blue)}.topbar__counters{margin-left:auto;color:var(--muted)}.demo-bar,.topbar__counters{display:flex;align-items:center;font-size:13px}.demo-bar{gap:6px;height:var(--demo-bar);padding:0 24px;border-bottom:1px solid #fde68a;background:#fffbeb;color:#92400e}.workspace{display:grid;grid-template-columns:385px minmax(0,1fr);height:calc(100vh - 56px)}body:has(.demo-bar) .workspace{height:calc(100vh - 56px - var(--demo-bar))}.sidebar{border-right:1px solid var(--line);overflow-y:auto}.filters{display:flex;flex-wrap:wrap;gap:8px;padding:16px}.filter{padding:7px 13px;border:1px solid transparent;border-radius:8px;background:none;color:var(--muted);font:inherit;font-size:14px;cursor:pointer}.filter--active{border-color:var(--blue);color:var(--blue);background:#fff;font-weight:500}.conv{display:block;padding:13px 16px 15px;border-bottom:1px solid var(--line-soft);cursor:pointer}.conv--active{background:var(--blue-soft);box-shadow:inset 3px 0 0 var(--blue)}.conv__name{display:flex;align-items:center;gap:8px;font-weight:600}.dot{width:8px;height:8px;border-radius:50%;background:#d1d5db;flex:none}.dot--unread{background:var(--amber)}.dot--human{background:var(--blue)}.conv__meta,.meta{color:var(--muted);font-size:13px}.conv__preview{margin-top:2px;color:#374151;font-size:14px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.detail{display:grid;grid-template-columns:minmax(0,1fr) 390px;height:100%;overflow:hidden}.thread{padding:24px 32px 32px;overflow-y:auto}.thread__head{display:flex;align-items:flex-start;gap:16px}.thread__head h1{margin:0;font-size:24px;line-height:1.2}.thread__actions{display:flex;gap:10px;margin-left:auto}.thread__sub{margin:6px 0 20px}.btn{padding:9px 16px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--text);font:inherit;font-size:14px;cursor:pointer}.btn:disabled{opacity:.5;cursor:default}.btn--primary{border-color:var(--blue);background:var(--blue);color:#fff;padding:10px 22px}.btn--primary:hover:not(:disabled){background:var(--blue-dark)}.msg{margin-bottom:12px;padding:12px 16px;border-left:3px solid var(--client-line);border-radius:var(--radius);background:var(--client-bg)}.msg--bot{border-left-color:var(--bot-line);background:var(--bot-bg)}.msg--owner{border-left-color:var(--blue);background:var(--owner-bg)}.msg__meta{margin-bottom:4px;color:var(--muted);font-size:13px}.msg__attachment{color:var(--muted);font-style:italic}.system{margin:18px 0;text-align:center;color:var(--muted);font-size:13px}.reply{margin-top:20px}.reply textarea{width:100%;min-height:104px;padding:14px 16px;border:1px solid var(--line);border-radius:var(--radius);font:inherit;resize:vertical}.reply__row{display:flex;align-items:center;gap:14px;margin-top:14px}.panel{border-left:1px solid var(--line);padding:24px;overflow-y:auto}.panel h2{margin:0 0 12px;font-size:19px}.panel h2+.rows{margin-bottom:28px}.rows{display:grid;grid-gap:1px;gap:1px}.row{display:flex;justify-content:space-between;gap:16px;padding:9px 0;border-bottom:1px solid var(--line-soft)}.row__label{color:var(--muted)}.row__value{text-align:right}.row__value--empty{color:var(--muted);font-style:italic}.summary{margin:0 0 24px;color:#374151}.card{padding:16px;border:1px solid var(--line);border-radius:12px}.card h3{margin:0 0 6px;font-size:17px}.field{margin-top:14px}.field label{display:block;margin-bottom:6px;color:var(--muted);font-size:14px}.field input,.field select,.field textarea{width:100%;padding:9px 12px;border:1px solid var(--line);border-radius:8px;background:#fff;font:inherit}.center{display:flex;align-items:center;justify-content:center;height:100vh;padding:24px}.login{width:320px}.login h1{margin:0 0 20px;font-size:22px}.empty{display:flex;align-items:center;justify-content:center;height:100%;color:var(--muted)}.error{color:#b00020;font-size:14px}.leads{padding:24px 32px;max-width:900px}.lead-item{padding:16px;border:1px solid var(--line);border-radius:12px;margin-bottom:12px}