:root{font-family:Space Grotesk,Inter,system-ui,sans-serif;--bg-start: #050711;--bg-end: #1e2244;--drawer-bg: rgba(10, 14, 32, .9);--drawer-border: #2b2f4c;--content-card: rgba(6, 11, 32, .9);--shell-bg: rgba(6, 10, 24, .78);--chat-area-bg: linear-gradient(160deg, rgba(8, 11, 33, .75), rgba(20, 26, 60, .95));--glow: 0 22px 60px rgba(10, 0, 60, .75);--text-primary: #f8fbff;--text-muted: #9ea3c8;--border-soft: rgba(255, 255, 255, .08);--accent: #5db7ff;--accent-light: #8ecfff;--accent-secondary: #3c6bff;--input-bg: rgba(255, 255, 255, .04);--user-message-bg: linear-gradient(145deg, rgba(93, 183, 255, .25), rgba(60, 107, 255, .25));--agent-message-bg: rgba(255, 255, 255, .04);--agent-message-border: rgba(255, 255, 255, .08)}*{box-sizing:border-box}body{margin:0;min-height:100vh;color:var(--text-primary)}[data-theme=dark-mono] body,[data-theme=dark-color] body{background:radial-gradient(circle at 20% -10%,rgba(92,183,255,.35),transparent 45%),radial-gradient(circle at 90% 120%,rgba(66,165,245,.25),transparent 60%),linear-gradient(180deg,var(--bg-start),var(--bg-end))}[data-theme=tan-color] body{background:radial-gradient(circle at 20% -10%,rgba(74,144,184,.15),transparent 45%),radial-gradient(circle at 90% 120%,rgba(61,107,153,.12),transparent 60%),linear-gradient(180deg,var(--bg-start),var(--bg-end))}#root{min-height:100vh}.v3-shell{width:min(1300px,100%);margin:48px auto;min-height:75vh;display:grid;grid-template-columns:280px minmax(0,1fr);gap:24px;padding:32px;background:var(--shell-bg);border-radius:28px;border:1px solid var(--border-soft);box-shadow:var(--glow);-webkit-backdrop-filter:blur(28px);backdrop-filter:blur(28px)}.v3-drawer{background:var(--drawer-bg);border:1px solid var(--drawer-border);border-radius:24px;padding:24px;display:flex;flex-direction:column;gap:16px;box-shadow:inset 0 0 0 1px #ffffff05}[data-theme=tan-color] .v3-drawer{box-shadow:inset 0 0 0 1px #00000005}.v3-drawer-header{display:flex;justify-content:space-between;align-items:center;gap:12px;color:var(--text-primary)}.drawer-label{font-size:.75rem;letter-spacing:.18em;text-transform:uppercase;color:var(--text-muted);padding:6px 12px;border-radius:999px;border:1px solid var(--border-soft)}[data-theme=tan-color] .drawer-label{border:1px solid rgba(0,0,0,.15)}.v3-drawer-actions{display:flex;flex-direction:column;gap:12px}.v3-session-list{display:flex;flex-direction:column;gap:10px;max-height:55vh;overflow-y:auto}.v3-session-list button{justify-content:space-between}.v3-chat-area{background:var(--chat-area-bg);border:1px solid var(--border-soft);border-radius:24px;padding:26px;display:flex;flex-direction:column;gap:18px;box-shadow:var(--glow)}.chat-header{display:flex;justify-content:space-between;align-items:center;gap:12px}.brand-label{font-size:.85rem;letter-spacing:.12em;text-transform:uppercase;color:var(--text-muted);margin-bottom:4px}.chat-title{margin:0;font-size:1.9rem;letter-spacing:.03em}.status-pill{padding:6px 14px;border-radius:999px;background:#5db7ff1f;color:var(--text-muted);font-size:.75rem;letter-spacing:.1em;text-transform:uppercase}[data-theme=tan-color] .status-pill{background:#4a90b826}.chat-card{background:var(--content-card);border-radius:22px;padding:22px;border:1px solid var(--border-soft);display:flex;flex-direction:column;gap:16px;box-shadow:var(--glow)}.chat-metadata{display:flex;flex-direction:column;gap:4px}.message-feed{display:flex;flex-direction:column;gap:12px;flex:1;min-height:220px;max-height:50vh;overflow-y:auto;padding-right:8px}.message{max-width:78%;padding:14px 16px;border-radius:16px;position:relative;font-size:.95rem;line-height:1.5;border:1px solid transparent}.message.agent{align-self:flex-start;background:var(--agent-message-bg);border-color:var(--agent-message-border);color:var(--text-muted)}.message.user{align-self:flex-end;background:var(--user-message-bg);color:var(--text-primary);border-bottom-right-radius:6px}[data-theme=dark-mono] .message.user,[data-theme=dark-color] .message.user{box-shadow:0 14px 30px #3c6bff40}[data-theme=tan-color] .message.user{box-shadow:0 14px 30px #3d6b9926}.input-row{display:flex;align-items:flex-end;gap:12px;padding:12px;border-radius:18px;background:var(--input-bg);border:1px solid var(--border-soft)}.input-row .MuiTextField-root{flex:1;background:transparent}.input-row .MuiInputBase-root{padding:0}.send-btn{border:none;background:linear-gradient(135deg,var(--accent),var(--accent-secondary));color:#fff;padding:12px 24px;border-radius:14px;font-size:.95rem;font-weight:600;letter-spacing:.05em;cursor:pointer;box-shadow:0 12px 30px #5db7ff59;text-transform:none}[data-theme=tan-color] .send-btn{box-shadow:0 12px 30px #4a90b840}.send-btn:disabled{opacity:.6;cursor:not-allowed}.icon-legend,.chat-legend{font-size:.75rem;color:var(--text-muted);border-top:1px solid var(--border-soft);padding-top:12px}.icon-legend{margin-top:16px}.v3-session-list::-webkit-scrollbar,.message-feed::-webkit-scrollbar{width:5px}.v3-session-list::-webkit-scrollbar-track,.message-feed::-webkit-scrollbar-track{background:#ffffff05;border-radius:3px}[data-theme=tan-color] .v3-session-list::-webkit-scrollbar-track,[data-theme=tan-color] .message-feed::-webkit-scrollbar-track{background:#00000005}.v3-session-list::-webkit-scrollbar-thumb,.message-feed::-webkit-scrollbar-thumb{background:#ffffff1f;border-radius:3px}[data-theme=tan-color] .v3-session-list::-webkit-scrollbar-thumb,[data-theme=tan-color] .message-feed::-webkit-scrollbar-thumb{background:#0000001f}.v3-login-shell{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}.v3-login-card{width:100%;max-width:420px;padding:40px 32px;background:var(--drawer-bg)!important;border:1px solid var(--drawer-border);border-radius:24px;box-shadow:var(--glow);-webkit-backdrop-filter:blur(28px);backdrop-filter:blur(28px)}.v3-login-card .MuiTypography-h4{color:var(--text-primary);font-weight:600;letter-spacing:.02em}.v3-login-card .MuiTypography-body2{color:var(--text-muted);margin-bottom:24px}.v3-login-card .MuiFilledInput-root{background:var(--input-bg);border-radius:12px;border:1px solid var(--border-soft)}.v3-login-card .MuiFilledInput-root:hover{background:#ffffff0f}[data-theme=tan-color] .v3-login-card .MuiFilledInput-root:hover{background:#0000000d}.v3-login-card .MuiFilledInput-root.Mui-focused{background:#ffffff0f;border-color:var(--accent)}[data-theme=tan-color] .v3-login-card .MuiFilledInput-root.Mui-focused{background:#0000000d}.v3-login-card .MuiInputLabel-root{color:var(--text-muted)}.v3-login-card .MuiInputBase-input{color:var(--text-primary)}.v3-login-card .MuiButton-contained{background:linear-gradient(135deg,var(--accent),var(--accent-secondary));border-radius:12px;padding:12px 24px;font-weight:600;text-transform:none;box-shadow:0 12px 30px #5db7ff59}[data-theme=tan-color] .v3-login-card .MuiButton-contained{box-shadow:0 12px 30px #4a90b840}.v3-login-card .MuiButton-contained:hover{box-shadow:0 16px 40px #5db7ff73}[data-theme=tan-color] .v3-login-card .MuiButton-contained:hover{box-shadow:0 16px 40px #4a90b859}.v3-chat-type-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px;margin:8px 0}.v3-chat-type-grid .MuiButton-root{padding:16px;min-height:90px;border-radius:14px;border:1px solid var(--border-soft)}.v3-chat-type-grid .MuiButton-contained{background:linear-gradient(135deg,var(--accent),var(--accent-secondary));border-color:transparent}.v3-chat-type-grid .MuiButton-outlined{background:var(--input-bg);border-color:var(--border-soft)}.v3-chat-type-grid .MuiButton-outlined:hover{background:#ffffff0a;border-color:var(--accent)}[data-theme=tan-color] .v3-chat-type-grid .MuiButton-outlined:hover{background:#0000000a}.theme-picker{display:flex;gap:8px;padding:4px;background:var(--input-bg);border-radius:12px;border:1px solid var(--border-soft)}.theme-picker-btn{flex:1;padding:8px 12px;border:none;border-radius:8px;cursor:pointer;font-size:.75rem;font-weight:500;transition:all .2s;background:transparent;color:var(--text-muted)}.theme-picker-btn:hover{background:#ffffff0f}[data-theme=tan-color] .theme-picker-btn:hover{background:#0000000f}.theme-picker-btn.active{background:linear-gradient(135deg,var(--accent),var(--accent-secondary));color:#fff}@media(max-width:960px){.v3-shell{grid-template-columns:1fr;margin:16px;padding:24px}.v3-drawer,.v3-chat-area{width:100%}.message-feed{max-height:40vh}}