:root{--paper: #f4f0ea;--paper-2: #ebe5dc;--card: #fbf9f5;--ink: #17120f;--muted: #6c625b;--faint: #9c9089;--line: #ddd5ca;--line-2: #e6dfd5;--coral: #f0503f;--coral-ink: #d23a2a;--disp: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;--sans: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;--radius-lg: 20px;--radius-md: 14px;--radius-sm: 9px;--ok: #2f8a4e;--warn: #b4791b}*{box-sizing:border-box}html,body{height:100%;margin:0}html{overflow-x:hidden}body{background:var(--paper);color:var(--ink);font-family:var(--sans);-webkit-font-smoothing:antialiased;line-height:1.5;overflow-x:hidden}button,input,select{font-family:inherit}img{display:block;max-width:100%}:focus-visible{outline:2px solid var(--coral-ink);outline-offset:2px;border-radius:4px}#app{position:relative;min-height:100vh;min-height:100dvh;display:flex;flex-direction:column}.surface-topbar{flex:0 0 auto;display:flex;align-items:center;justify-content:space-between;padding:16px 20px 4px}.surface-brand{display:flex;align-items:center;gap:8px;font-family:var(--disp);font-weight:700;font-size:16px;letter-spacing:-.02em;color:var(--ink)}.surface-brand .dot{width:8px;height:8px;border-radius:50%;background:var(--coral)}.surface-shell{flex:1;display:grid;grid-template-columns:minmax(0,1.35fr) minmax(300px,420px);gap:20px;width:100%;max-width:1200px;margin:0 auto;padding:8px 20px 20px;min-height:0}.avatar-stage{position:relative;border-radius:var(--radius-lg);overflow:hidden;background:#0e0b0a;border:1px solid var(--line);min-height:420px}#avatar-canvas{position:absolute;top:0;right:0;bottom:0;left:0}#avatar-canvas canvas{display:block;width:100%;height:100%}.avatar-loading{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:10px;color:#ede7df;font-size:13px;background:radial-gradient(circle at 50% 40%,rgba(255,255,255,.06),transparent 60%);transition:opacity .3s ease;pointer-events:none}.avatar-loading[hidden]{display:none}.spinner{width:22px;height:22px;border-radius:50%;border:2px solid rgba(255,255,255,.25);border-top-color:#fff;animation:chitin-spin .8s linear infinite}@keyframes chitin-spin{to{transform:rotate(360deg)}}.avatar-credit{position:absolute;left:12px;bottom:12px;padding:4px 10px;border-radius:20px;background:#0e0b0a8c;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);color:#ffffffd1;font-size:11px;letter-spacing:.01em}.ui-panel{display:flex;flex-direction:column;gap:12px;min-height:0}.greeting-caption{padding:12px 16px;border-radius:var(--radius-md);background:var(--card);border:1px solid var(--line);font-size:14px;line-height:1.5;color:var(--ink)}.greeting-caption[hidden]{display:none}.panel-card{display:flex;flex-direction:column;gap:12px;padding:18px;border-radius:var(--radius-md);background:var(--card);border:1px solid var(--line);min-height:0}.panel-card[hidden]{display:none}.conn-status{display:flex;align-items:center;gap:6px;font-size:11.5px;color:var(--muted)}.conn-dot{width:7px;height:7px;border-radius:50%;background:var(--faint);flex:0 0 auto}.conn-status[data-status=connected] .conn-dot{background:var(--ok)}.conn-status[data-status=connecting] .conn-dot,.conn-status[data-status=reconnecting] .conn-dot{background:var(--warn)}.conn-status[data-status=auth_expired] .conn-dot{background:var(--coral-ink)}.auth-tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);padding-bottom:2px}.auth-tab{padding:6px 4px;background:none;border:none;border-bottom:2px solid transparent;font-weight:600;font-size:13px;color:var(--muted);cursor:pointer}.auth-tab[aria-pressed=true]{color:var(--ink);border-bottom-color:var(--coral)}.field{width:100%;padding:10px 12px;border-radius:var(--radius-sm);border:1px solid var(--line);background:var(--paper);color:var(--ink);font-size:14px}.field::placeholder{color:var(--muted)}.consent-row{display:flex;align-items:flex-start;gap:8px;font-size:12.5px;color:var(--muted);cursor:pointer}.consent-row input{margin-top:2px}.auth-error{font-size:12.5px;color:var(--coral-ink);min-height:16px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:600;font-size:14px;padding:11px 18px;border-radius:var(--radius-sm);border:none;cursor:pointer;transition:transform .15s,background .15s,border-color .15s,opacity .15s}.btn-primary{background:var(--coral-ink);color:#fff}.btn-primary:hover:not(:disabled){background:var(--ink)}.btn-primary:disabled{opacity:.6;cursor:default}.btn-ghost{background:transparent;border:1px solid var(--line);color:var(--ink)}.btn-ghost:hover{border-color:var(--ink)}.chat-topbar{display:flex;align-items:center;justify-content:space-between;gap:8px;flex-wrap:wrap}.chat-topbar-left{display:flex;flex-direction:column;gap:4px;min-width:0}.model-select{padding:7px 10px;border-radius:var(--radius-sm);border:1px solid var(--line);background:var(--paper);color:var(--ink);font-size:12.5px;max-width:100%}.limit-banner{padding:10px 12px;border-radius:10px;border-left:3px solid var(--coral-ink);background:#d23a2a14;color:var(--ink);font-size:12.5px;line-height:1.5}.limit-banner[hidden]{display:none}.limit-strong{font-weight:700}.chat-log{display:flex;flex-direction:column;gap:8px;max-height:280px;overflow-y:auto;padding-right:2px}.msg{max-width:88%;padding:8px 12px;border-radius:14px;font-size:13.5px;line-height:1.45}.msg-you{align-self:flex-end;background:var(--ink);color:#fdfaf6;border-bottom-right-radius:4px}.msg-chitin{align-self:flex-start;background:var(--paper);border:1px solid var(--line);color:var(--ink);border-bottom-left-radius:4px}.msg-chitin.pending{opacity:.65}.msg-system{align-self:center;font-size:11.5px;color:var(--muted)}.chat-input-row{display:flex;gap:8px}.chat-input{flex:1;min-width:0}@media (max-width: 880px){.surface-shell{grid-template-columns:1fr;grid-template-rows:auto auto;padding:4px 14px 20px;gap:14px}.avatar-stage{min-height:0;height:44vh}.ui-panel{gap:10px}.panel-card{padding:14px}.chat-log{max-height:34vh}}@media (max-width: 480px){.surface-topbar{padding:12px 14px 2px}.surface-shell{padding:4px 12px 16px}.btn{padding:10px 14px;font-size:13.5px}.chat-topbar{gap:6px}}#debug-panel,#dev-relay-panel{border-radius:0 0 0 10px}