:root{color-scheme:light;--bg: #ffffff;--panel: #ffffff;--panel-2: #fafafa;--text: #0f172a;--muted: #64748b;--border: #e5e7eb;--shadow: 0 1px 2px rgba(0, 0, 0, .06);--accent: #10a37f;--accent-weak: rgba(16, 163, 127, .12);--danger: #ef4444;--radius: 14px;--font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji"}:root[data-theme=dark]{color-scheme:dark;--bg: #0b0f19;--panel: #0f1627;--panel-2: #0b1220;--text: #e5e7eb;--muted: #94a3b8;--border: rgba(255, 255, 255, .1);--shadow: 0 1px 2px rgba(0, 0, 0, .35);--accent: #10a37f;--accent-weak: rgba(16, 163, 127, .18);--danger: #f87171}*{box-sizing:border-box}html,body{height:100%}body{margin:0;font-family:var(--font);background:var(--bg);color:var(--text)}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}button,input,textarea,select{font-family:inherit}.ui-card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.ui-btn{border:1px solid var(--border);background:var(--panel);color:var(--text);border-radius:12px;padding:10px 12px;font-weight:700;cursor:pointer;transition:transform .05s ease,background .15s ease,border-color .15s ease}.ui-btn:hover{transform:translateY(-1px);border-color:#10a37f73}.ui-btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}.ui-btn.primary:hover{border-color:#10a37fd9}.ui-btn.danger{background:transparent;border-color:#ef444459;color:var(--danger)}.ui-pill{display:inline-flex;align-items:center;gap:8px;padding:6px 10px;border:1px solid var(--border);border-radius:999px;background:var(--panel)}.ui-muted{color:var(--muted)}.ui-input{width:100%;background:var(--panel);color:var(--text);border:1px solid var(--border);border-radius:12px;padding:10px 12px;outline:none}.ui-input:focus{border-color:#10a37f8c;box-shadow:0 0 0 4px var(--accent-weak)}.theme-toggle{height:34px;padding:0 12px;border-radius:999px;border:1px solid var(--border);background:var(--panel);color:var(--text);font:600 12px/34px var(--font);cursor:pointer;box-shadow:var(--shadow)}.theme-toggle:hover{border-color:#10a37f8c}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:40px;padding:0 14px;border-radius:10px;border:1px solid var(--border);background:var(--panel);color:var(--text);font:600 14px/40px var(--font);cursor:pointer}.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn.primary:hover{filter:brightness(.96)}.btn.ghost{background:transparent}.input{width:100%;height:40px;padding:0 12px;border-radius:10px;border:1px solid var(--border);background:var(--panel);color:var(--text);font:400 14px/40px var(--font)}.input:focus{outline:none;border-color:#10a37fa6;box-shadow:0 0 0 4px var(--accent-weak)}.card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.landing{min-height:100vh;background:var(--bg);color:var(--text);font-family:var(--font);display:flex;flex-direction:column}.landing-header{display:flex;align-items:center;justify-content:space-between;padding:18px 22px;border-bottom:1px solid var(--border);background:var(--panel)}.landing-brand{display:flex;align-items:center;gap:12px}.brand-dot{width:32px;height:32px;border-radius:10px;background:var(--accent)}.brand-title{font-weight:800;letter-spacing:-.02em}.brand-subtitle{color:var(--muted);font-size:13px;margin-top:2px}.landing-actions{display:flex;align-items:center;gap:10px}.landing-main{flex:1;display:grid;place-items:center;padding:40px 22px}.hero{width:min(860px,100%);padding:28px;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);background:var(--panel)}.hero h1{margin:0 0 10px;font-size:36px;letter-spacing:-.03em}.hero p{margin:0 0 18px;color:var(--muted);font-size:16px;line-height:1.55}.hero-cta{display:flex;gap:10px;flex-wrap:wrap}.hero-note{margin-top:14px;color:var(--muted);font-size:12px}.landing-footer{padding:16px 22px;border-top:1px solid var(--border);color:var(--muted);font-size:12px;text-align:center}.auth{min-height:100vh;background:var(--bg);color:var(--text);font-family:var(--font);display:flex;flex-direction:column;padding:18px}.auth-top{display:flex;align-items:center;justify-content:space-between;max-width:960px;width:100%;margin:0 auto}.auth-home{color:var(--text);text-decoration:none;font-weight:800}.auth-card{max-width:480px;width:100%;margin:28px auto 0;background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px}.auth-card h1{margin:0;font-size:22px;letter-spacing:-.01em}.auth-sub{margin:6px 0 14px;color:var(--muted);font-size:14px}.auth-form{display:flex;flex-direction:column;gap:12px}.auth-form label{display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--muted)}.auth-form input{height:40px;padding:0 12px;border-radius:12px;border:1px solid var(--border);background:var(--panel);color:var(--text);outline:none}.auth-form input:focus{border-color:#10a37fb3;box-shadow:0 0 0 3px #10a37f1f}.auth-error{border:1px solid rgba(239,68,68,.35);background:#ef444414;color:var(--text);padding:10px 12px;border-radius:12px;font-size:13px}.auth-foot{margin-top:14px;font-size:13px;color:var(--muted)}.auth-foot a{color:var(--accent);text-decoration:none;font-weight:700}.auth-note{margin-top:12px;font-size:12px;color:var(--muted);border-top:1px solid var(--border);padding-top:10px}.app-shell{min-height:100vh;display:flex;background:var(--bg);color:var(--text);font-family:var(--font)}.sidebar{width:290px;border-right:1px solid var(--border);background:var(--panel);display:flex;flex-direction:column}.sidebar-top{padding:16px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;gap:12px}.sidebar-brand{display:flex;align-items:center;gap:10px;font-weight:900;letter-spacing:-.01em}.sidebar-brand .dot{width:10px;height:10px;border-radius:999px;background:var(--accent)}.sidebar-actions{display:flex;align-items:center;gap:8px}.sidebar-nav{padding:10px;display:flex;flex-direction:column;gap:6px}.nav-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:12px;border:1px solid transparent;color:var(--text);background:transparent;cursor:pointer;text-align:left;font-weight:650}.nav-item:hover{background:var(--panel-2);border-color:var(--border)}.nav-item.active{background:var(--accent-weak);border-color:#10a37f40}.sidebar-footer{margin-top:auto;padding:12px 16px;border-top:1px solid var(--border);display:flex;flex-direction:column;gap:8px;color:var(--muted);font-size:12px}.main{flex:1;display:flex;flex-direction:column;min-width:0}.topbar{padding:14px 18px;border-bottom:1px solid var(--border);background:var(--panel);display:flex;align-items:center;justify-content:space-between;gap:12px}.topbar-title{display:flex;flex-direction:column;gap:2px}.topbar-title .title{font-weight:900;letter-spacing:-.02em}.topbar-title .sub{font-size:12px;color:var(--muted)}.topbar-right{display:flex;align-items:center;gap:10px}.badge{font-size:12px;padding:6px 10px;border-radius:999px;border:1px solid var(--border);background:var(--panel-2);color:var(--muted)}.content{flex:1;padding:18px;overflow:auto}.card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px}.chat-wrap{max-width:980px;margin:0 auto;display:flex;flex-direction:column;gap:12px}.chat-messages{display:flex;flex-direction:column;gap:10px}.msg{padding:12px 14px;border-radius:16px;border:1px solid var(--border);background:var(--panel);line-height:1.45;white-space:pre-wrap}.msg.user{align-self:flex-end;background:var(--accent-weak);border-color:#10a37f40}.msg.assistant{align-self:flex-start}.chat-input{display:flex;gap:10px;align-items:flex-end;border:1px solid var(--border);border-radius:18px;padding:10px;background:var(--panel)}.chat-input textarea{flex:1;resize:none;border:none;outline:none;background:transparent;color:var(--text);font-family:var(--font);font-size:14px;min-height:44px;max-height:160px}.icon-btn{width:40px;height:40px;border-radius:12px;border:1px solid var(--border);background:var(--panel-2);color:var(--text);cursor:pointer;display:inline-flex;align-items:center;justify-content:center}.icon-btn:hover{border-color:#10a37f8c}.icon-btn.recording{border-color:#ef444499;box-shadow:0 0 0 3px #ef44441f}.send-btn{height:40px;padding:0 14px;border-radius:12px;border:1px solid rgba(16,163,127,.35);background:var(--accent);color:#fff;font-weight:800;cursor:pointer}.send-btn:disabled{opacity:.55;cursor:not-allowed}.settings-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.settings-grid label{display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--muted)}.settings-grid input,.settings-grid select{height:40px;padding:0 12px;border-radius:12px;border:1px solid var(--border);background:var(--panel);color:var(--text);outline:none}.settings-grid input:focus,.settings-grid select:focus{border-color:#10a37fb3;box-shadow:0 0 0 3px #10a37f1f}@media(max-width:920px){.sidebar{width:250px}.settings-grid{grid-template-columns:1fr}}@media(max-width:720px){.app-shell{flex-direction:column}.sidebar{width:100%;border-right:none;border-bottom:1px solid var(--border)}}.brand-dot{width:10px;height:10px;border-radius:999px;background:var(--accent);box-shadow:0 0 0 4px var(--accent-weak)}.small{font-size:12px;color:var(--muted)}.msg-text 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