.history-panel[hidden]{display:none!important}.history-panel{position:fixed;inset:0;z-index:42;display:grid;place-items:end center;padding:18px;background:rgba(5,7,10,.72);backdrop-filter:blur(14px)}.history-sheet{width:min(100%,620px);max-height:min(78vh,720px);display:grid;grid-template-rows:auto minmax(0,1fr) auto;gap:16px;padding:20px;border:1px solid rgba(132,225,255,.18);border-radius:22px;background:rgba(8,11,16,.98);box-shadow:0 24px 80px rgba(0,0,0,.42)}.history-header{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.history-header h2{margin:5px 0 4px;font-size:1.35rem}.history-header p{margin:0;color:#9da7b2;font-size:.86rem;line-height:1.4}.history-eyebrow{color:#36e3ff;font-size:.7rem;letter-spacing:.18em}.history-close{width:44px;height:44px;flex:0 0 auto;border:1px solid rgba(132,225,255,.18);border-radius:12px;color:#f4efe6;background:rgba(255,255,255,.025);font-size:1.45rem}.history-list{min-height:0;overflow:auto;display:grid;align-content:start;gap:10px;padding-right:2px}.history-entry{display:grid;gap:7px;padding:12px 13px;border:1px solid rgba(255,255,255,.07);border-radius:14px;background:rgba(255,255,255,.025)}.history-entry-user{margin-left:12%}.history-entry-assistant{margin-right:12%;border-color:rgba(54,227,255,.12);background:rgba(54,227,255,.035)}.history-entry-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;color:#9da7b2;font-size:.72rem}.history-entry-meta strong{color:#d7e9ef;font-size:.73rem;letter-spacing:.04em}.history-entry p{margin:0;color:#f0ede7;font-size:.9rem;line-height:1.45;white-space:pre-wrap;overflow-wrap:anywhere}.history-empty{display:grid;gap:6px;padding:28px 18px;text-align:center;border:1px dashed rgba(132,225,255,.14);border-radius:14px;color:#9da7b2}.history-empty strong{color:#e8e3da;font-size:.95rem}.history-empty span{font-size:.82rem;line-height:1.4}.history-done{min-height:46px;border:1px solid rgba(54,227,255,.28);border-radius:13px;color:#f4efe6;background:rgba(43,127,255,.14);font-weight:600}@media (max-width:640px){.history-panel{padding:8px;place-items:end stretch}.history-sheet{width:100%;max-height:90dvh;padding:17px;border-radius:20px}.history-entry-user{margin-left:7%}.history-entry-assistant{margin-right:7%}}@media (prefers-reduced-motion:reduce){.history-panel,.history-sheet{scroll-behavior:auto}}