:root{--bg: #f5f6f8;--card: #ffffff;--border: #e4e7ec;--text: #1a1d24;--muted: #6b7280;--primary: #4f46e5;--primary-dark: #4338ca;--radius: 12px;--shadow: 0 1px 3px rgba(16, 24, 40, .08)}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.5}.app-header{display:flex;align-items:center;justify-content:space-between;padding:14px 24px;background:var(--card);border-bottom:1px solid var(--border)}.app-header__brand{font-weight:700;font-size:18px}.app-header__logo{color:var(--primary)}.app-header__nav{display:flex;gap:8px}.nav-link{padding:8px 14px;border-radius:8px;text-decoration:none;color:var(--muted);font-weight:500}.nav-link.active{background:var(--primary);color:#fff}.app-main{max-width:1100px;margin:24px auto;padding:0 24px}.layout{display:grid;grid-template-columns:360px 1fr;gap:20px;align-items:start}@media (max-width: 820px){.layout{grid-template-columns:1fr}}.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px}.card h2{margin:0 0 16px;font-size:18px}.card h3{font-size:14px;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}.form{display:flex;flex-direction:column;gap:12px}.field{display:flex;flex-direction:column;gap:6px;font-size:14px;font-weight:500}input,textarea{font:inherit;padding:10px 12px;border:1px solid var(--border);border-radius:8px;background:#fff;color:var(--text);resize:vertical}input:focus,textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #4f46e51f}.draft-panel{display:flex;flex-direction:column;gap:10px;padding:14px;border:1px solid #fde68a;background:#fffbeb;border-radius:var(--radius)}.draft-panel__head{font-weight:600;font-size:13px;color:#92400e}.tool-call-preview{background:#fff;border:1px solid #fde68a;border-radius:8px;padding:10px 12px;font-size:13px}.tool-call-preview code{font-weight:600}.tool-call-preview pre{margin:6px 0 0;white-space:pre-wrap;word-break:break-word;font-size:12px;color:var(--muted)}.btn{padding:10px 16px;border:1px solid var(--border);border-radius:8px;background:#fff;color:var(--text);font-weight:600;cursor:pointer;transition:background .15s,border-color .15s}.btn:hover{border-color:var(--primary)}.btn:disabled{opacity:.6;cursor:not-allowed}.btn--primary{background:var(--primary);border-color:var(--primary);color:#fff}.btn--primary:hover{background:var(--primary-dark)}.btn--ghost{color:var(--muted)}.row{display:flex;gap:10px}.list{list-style:none;margin:8px 0 0;padding:0;display:flex;flex-direction:column;gap:6px}.list__item{width:100%;text-align:left;padding:10px 12px;border:1px solid var(--border);border-radius:8px;background:#fff;cursor:pointer;font:inherit}.list__item:hover{border-color:var(--primary)}.list__item--wide{display:flex;justify-content:space-between;align-items:center;gap:10px}.tabs{display:flex;gap:6px;margin-bottom:12px}.tab{padding:8px 14px;border:1px solid var(--border);border-radius:8px;background:#fff;cursor:pointer;font:inherit;font-weight:500}.tab--active{background:var(--primary);border-color:var(--primary);color:#fff}.ticket-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}.ticket-head h2{margin:0;font-size:16px}.thread{display:flex;flex-direction:column;gap:12px}.message{padding:12px 14px;border-radius:10px;border:1px solid var(--border);background:#fbfbfc}.message--user{background:#eef2ff;border-color:#dfe3ff}.message--agent{background:#ecfdf5;border-color:#d1fae5}.message--human{background:#fff7ed;border-color:#fed7aa}.message--system{background:#f9fafb;border-style:dashed;color:var(--muted);font-size:13px}.message__head{display:flex;justify-content:space-between;align-items:center;margin-bottom:4px}.message__role{font-weight:600;font-size:13px}.message__meta{display:flex;gap:8px;align-items:center}.message__confidence,.message__tier,.message__steps{font-size:12px;color:var(--muted)}.message__body{white-space:pre-wrap}.message__sources{margin-top:6px;font-size:12px;color:var(--muted)}.badge{display:inline-block;padding:4px 10px;border-radius:999px;font-size:12px;font-weight:600;white-space:nowrap}.badge--open{background:#e0e7ff;color:#3730a3}.badge--assigned_to_agent{background:#fef3c7;color:#92400e}.badge--answered_by_agent{background:#d1fae5;color:#065f46}.badge--pending_human{background:#fee2e2;color:#991b1b}.badge--answered_by_human{background:#ffedd5;color:#9a3412}.badge--closed{background:#e5e7eb;color:#374151}.muted{color:var(--muted)}.mt{margin-top:16px}.alert{background:#fef2f2;border:1px solid #fecaca;color:#991b1b;padding:10px 12px;border-radius:8px;margin-bottom:12px;font-size:14px}.game-login{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:20px;align-items:start}@media (max-width: 860px){.game-login{grid-template-columns:1fr}}.game-bar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px;border-radius:10px;background:#eef2ff;border:1px solid #c7d2fe}.game-bar__name{font-weight:600;font-size:15px}.game-bar__balance{font-size:26px;font-weight:700;color:#3730a3;line-height:1.2}.leaderboard{list-style:none;margin:12px 0 0;padding:0;display:flex;flex-direction:column;gap:6px}.leaderboard__row{display:grid;grid-template-columns:28px 1fr auto;align-items:center;gap:10px;padding:8px 12px;border-radius:8px;background:var(--card-bg, #f8fafc);border:1px solid #e5e7eb;font-size:14px}.leaderboard__row--me{background:#eef2ff;border-color:#c7d2fe;font-weight:600}.leaderboard__rank{color:var(--muted);font-variant-numeric:tabular-nums}.leaderboard__name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.leaderboard__score{font-variant-numeric:tabular-nums;font-weight:600}.list__item--active{border-color:#6366f1;background:#eef2ff}.attach-list{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0}.attach-chip{font-size:12px;padding:4px 10px;border-radius:999px;background:#f1f5f9;border:1px solid #e2e8f0;color:#475569}