:root{color-scheme:light;font-family:Segoe UI,Helvetica Neue,sans-serif;--bg: #f4f1ea;--bg-subtle: #fcfbf8;--bg-panel: rgba(255, 255, 255, .9);--bg-panel-strong: #ffffff;--surface: #eef1f4;--surface-strong: #e4e8ec;--text: #0b2a3a;--text-muted: #5c6f7c;--border: rgba(0, 57, 86, .12);--border-strong: rgba(0, 57, 86, .2);--brand: #005f7a;--brand-strong: #003956;--brand-soft: rgba(0, 165, 196, .12);--brand-gradient: linear-gradient(90deg, #00a5c4, #003956);--accent: #00a5c4;--danger: #c44545;--success: #2f9e6f;--shadow: 0 24px 80px rgba(0, 57, 86, .12)}:root[data-theme=dark]{color-scheme:dark;--bg: #041922;--bg-subtle: #072430;--bg-panel: rgba(3, 25, 34, .85);--bg-panel-strong: #031e29;--surface: #062a36;--surface-strong: #083544;--text: #e6f4f8;--text-muted: #9bb8c4;--border: rgba(0, 165, 196, .15);--border-strong: rgba(0, 165, 196, .25);--brand: #00a5c4;--brand-strong: #3cc7df;--brand-soft: rgba(0, 165, 196, .15);--accent: #00d1f0;--danger: #ff8a8a;--success: #6fe3b1;--shadow: 0 30px 90px rgba(0, 0, 0, .5)}*{box-sizing:border-box}html,body,#root{height:100%;min-height:100%}body{margin:0;overflow:hidden;color:var(--text);background:radial-gradient(circle at top left,rgba(220,129,47,.14),transparent 30%),radial-gradient(circle at top right,rgba(15,118,105,.14),transparent 32%),linear-gradient(180deg,var(--bg),var(--bg-subtle));transition:background .18s ease,color .18s ease}button,input,textarea{font:inherit}button{cursor:pointer}img{display:block;max-width:100%}a{color:inherit}.app-shell{height:100vh;overflow:hidden}.app-shell--chat,.app-shell:not(.app-shell--login){padding:8px 14px 12px}.app-shell__content{width:100%;max-width:100%;margin:0 auto;min-height:0}.app-shell__content--chat{height:100%;padding-top:56px}.topbar{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:0;max-width:100%;margin:0 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ease}.profile-menu__trigger,.ghost-button,.message-bubble__toggle{background:transparent;color:var(--text)}.profile-menu__trigger{display:inline-flex;align-items:center;gap:12px;min-width:0;padding:0;border:none}.profile-menu__avatar{width:42px;height:42px;display:inline-grid;place-items:center;border-radius:999px;background:linear-gradient(135deg,var(--brand),var(--accent));color:#fff;font-weight:700}.profile-menu__meta{display:flex;flex-direction:column;align-items:flex-start;min-width:0}.profile-menu__meta strong,.profile-menu__meta span{max-width:150px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.profile-menu__meta strong{font-size:.94rem}.profile-menu__meta span{color:var(--text-muted);font-size:.82rem}.profile-menu__dropdown{position:absolute;top:calc(100% + 12px);right:0;width:280px;padding:14px;border:1px solid var(--border);border-radius:22px;background:var(--bg-panel-strong);box-shadow:var(--shadow);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.profile-menu__section+.profile-menu__section{margin-top:14px}.profile-menu__label{display:block;margin-bottom:8px;color:var(--text-muted);font-size:.8rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase}.profile-menu__row{display:flex;gap:8px}.profile-menu__option{flex:1;padding:11px 12px;background:var(--surface);color:var(--text)}.profile-menu__option.is-active{background:linear-gradient(135deg,var(--brand),var(--accent));color:#fff}.profile-menu__logout{width:100%;margin-top:16px;padding:12px 14px;background:var(--surface);color:var(--text)}.section-badge,.login-page__eyebrow{display:inline-flex;align-items:center;width:fit-content;padding:6px 12px;border-radius:999px;background:var(--brand-soft);color:var(--brand-strong);font-size:.78rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase}.loading-screen{height:100vh;display:grid;place-items:center;gap:16px;text-align:center;padding:40px}.loading-screen__brand h1{margin:0;font-size:clamp(2rem,4vw,3.8rem)}.loading-spinner{width:62px;height:62px;border-radius:999px;border:4px solid var(--border);border-top-color:var(--brand);animation:spin .8s linear infinite}.login-page{display:grid;grid-template-columns:minmax(0,1.12fr) minmax(480px,.88fr);height:100vh;overflow:hidden}.login-page__visual{position:relative;overflow:hidden}.login-page__visual img{width:100%;height:100%;object-fit:cover}.login-page__visual-overlay{position:absolute;top:0;right:0;bottom:0;left:0}.login-page__mesh{position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(circle at 18% 24%,rgba(255,255,255,.24),transparent 18%),radial-gradient(circle at 82% 18%,rgba(255,176,102,.2),transparent 24%),radial-gradient(circle at 66% 78%,rgba(114,213,200,.14),transparent 22%)}.login-page__visual-copy{position:absolute;top:32px;left:32px;color:#fff;z-index:2}.login-page__visual-copy h1{margin:18px 0 16px;font-size:clamp(4rem,6vw,7rem);line-height:.88;max-width:8ch}.login-page__visual-copy p{max-width:38ch;font-size:1.1rem}.login-card{display:flex;align-items:center;justify-content:center;padding:42px;background:linear-gradient(180deg,#fffffff0,#ffffffe0),radial-gradient(circle at top right,rgba(15,118,105,.08),transparent 28%)}:root[data-theme=dark] .login-card{background:linear-gradient(180deg,#0a1721f5,#0a1721eb),radial-gradient(circle at top right,rgba(114,213,200,.08),transparent 28%)}.login-card__panel{width:min(100%,560px)}.login-card__intro h2{margin:20px 0 12px;font-size:clamp(2.6rem,3.8vw,4rem);line-height:1.02}.login-card__intro h1{margin-bottom:0}.login-card__intro p{margin:0 0 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12px;font-size:clamp(3rem,6vw,4.9rem);line-height:.95;letter-spacing:-.04em}.chat-layout__welcome-copy p{max-width:42ch;margin:0 auto;color:var(--text-muted);font-size:1.08rem}.chat-layout__messages{height:100%;display:flex;justify-content:center;min-height:0;padding:0}.suggestion-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.suggestion-card{position:relative;padding:22px;overflow:hidden;border:1px solid var(--border);border-radius:24px;background:var(--bg-panel);color:var(--text);text-align:left}.suggestion-card__accent{position:absolute;right:18px;bottom:18px;width:15px;height:15px;border-radius:5px;background:var(--brand-soft)}.message-list{display:flex;flex-direction:column;gap:18px;height:100%;min-height:0;width:100%;padding:12px 0 0}.message-bubble{max-width:min(78ch,86%);padding:18px 20px;border-radius:24px;border:1px solid var(--border)}.message-bubble--user{align-self:flex-end;background:var(--bg-panel-strong)}.message-bubble--assistant{align-self:flex-start;background:var(--bg-panel-strong)}.message-bubble__body :first-child{margin-top:0}.message-bubble__body :last-child{margin-bottom:0}.message-bubble__references{margin-top:14px;padding-top:14px;border-top:1px solid var(--border)}.message-bubble__reference-list ul{margin:10px 0 0;padding-left:18px}.message-bubble__thinking-label{display:inline-flex;margin-bottom:10px;color:var(--brand);font-weight:700}.chat-layout__composer{width:100%;margin:0 auto;display:flex;flex-direction:column;align-items:center;padding:12px 15% 18px}.chat-composer__disclaimer{margin:6px 0 0;text-align:center;font-size:.75rem;color:var(--text-muted);margin-bottom:.5rem}.chat-composer{position:relative;display:block;padding:12px;width:100%;border:1px solid var(--border);border-radius:28px;background:var(--bg-panel);box-shadow:var(--shadow)}.chat-composer__textarea{width:100%;max-height:180px;resize:none;padding:18px 72px 18px 18px;border-radius:22px}.chat-composer__submit{position:absolute;bottom:24px;right:24px;min-height:34px;width:34px;padding:0;display:inline-grid;place-items:center;border-radius:14px}.not-found-page{height:calc(100vh - 104px);display:grid;place-items:center}.not-found-page__card{width:min(760px,100%);padding:48px;border:1px solid var(--border);border-radius:32px;background:var(--bg-panel);box-shadow:var(--shadow);text-align:center}.not-found-page__card h1{margin:18px 0 10px;font-size:clamp(2.5rem,6vw,4.75rem);line-height:.95}.not-found-page__card h2{margin:0 0 14px;font-size:clamp(1.6rem,4vw,2.4rem)}.not-found-page__card p{max-width:52ch;margin:0 auto;color:var(--text-muted)}.not-found-page__actions{display:flex;justify-content:center;gap:14px;margin-top:28px;flex-wrap:wrap}.not-found-page__link{text-decoration:none}.profile-menu__trigger:hover,.profile-menu__option:hover,.profile-menu__logout:hover,.ghost-button:hover,.primary-button:hover,.chat-composer__submit:hover,.message-bubble__toggle:hover,.suggestion-card:hover,.not-found-page__link:hover{transform:translateY(-1px)}.primary-button:disabled,.ghost-button:disabled,.chat-composer__submit:disabled,.suggestion-card:disabled{opacity:.55;cursor:not-allowed}@keyframes spin{to{transform:rotate(360deg)}}@media(max-width:1080px){.login-page{grid-template-columns:1fr}.login-page__visual{min-height:40vh}.login-card{min-height:60vh;padding:28px 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