:root{color-scheme:light;--bg: #dce4f0;--panel: #cfd9e8;--surface: #e8eef6;--surface-raised: #f2f6fb;--text: #0f172a;--muted: #5c6b7f;--accent: #1e5a8c;--accent-hover: #164a73;--error: #c53030;--bubble-user: #b8d4f0;--bubble-ai: #dde8f4;--input-bg: #f8fafc;--border-subtle: rgba(15, 23, 42, .12);--border-strong: rgba(15, 23, 42, .18);--chart-tick: #475569;--chart-grid: rgba(15, 23, 42, .1)}*{box-sizing:border-box}body{margin:0;min-height:100vh;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text)}a{color:var(--accent)}.assistant-md h2{font-size:1.05rem;margin:1.1rem 0 .5rem;color:var(--accent);font-weight:600}.assistant-md h2:first-child{margin-top:0}.assistant-md p{margin:.45rem 0;line-height:1.55}.assistant-md ul{margin:.35rem 0 .5rem 1.1rem;padding:0}.assistant-md li{margin:.25rem 0}.assistant-md strong{color:#0f172a}.assistant-md code{background:#0f172a0f;padding:.1rem .35rem;border-radius:4px;font-size:.88em}.chat-progress-track{width:100%;height:3px;overflow:hidden;background:var(--border-subtle);flex-shrink:0}.chat-progress-indeterminate{height:100%;width:35%;max-width:280px;background:linear-gradient(90deg,var(--accent),#3d7eae);border-radius:0 2px 2px 0;animation:chat-progress-slide 1.15s ease-in-out infinite}@keyframes chat-progress-slide{0%{transform:translate(-100%)}to{transform:translate(400%)}}.login-shell{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:1.5rem 1.25rem;background:var(--bg);-webkit-font-smoothing:antialiased}