:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--bg:#f4f6f1;--surface:#fff;--surface-muted:#eef1eb;--surface-strong:#17201a;--panel:#ffffffe6;--panel-muted:#eef1ebc7;--border:#d7ddcf;--text:#17201a;--muted:#5e6b60;--accent:#0d766e;--accent-strong:#075852;--accent-soft:#dff3ef;--warning:#8a4b0f;--danger:#b3261e;--shadow:0 24px 70px #17201a1a;--soft-shadow:0 14px 36px #17201a14;--message-shadow:0 8px 18px #17201a0a;--focus-ring:#0d766e1f}*{box-sizing:border-box}html,body{min-height:100%;margin:0}body{background:linear-gradient(135deg, #0d766e1a, transparent 34%), linear-gradient(180deg, #ffffffd1, #f4f6f1f0), var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}button,textarea,select{font:inherit}button,select{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.56}.app-shell{min-height:100vh;padding:clamp(12px,2.2vw,24px)}.chat-shell{grid-template-rows:auto minmax(0,1fr);gap:12px;max-width:1100px;min-height:calc(100vh - clamp(24px,4.4vw,48px));margin:0 auto;display:grid}.app-header,.chat-panel{border:1px solid var(--border);background:var(--panel);box-shadow:var(--soft-shadow)}.app-header{-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-radius:14px;justify-content:space-between;align-items:center;gap:14px;padding:14px 16px;display:flex}.eyebrow{color:var(--accent-strong);letter-spacing:.16em;text-transform:uppercase;margin:0 0 8px;font-size:.76rem;font-weight:800}h1,h2,p{margin-top:0}h1{margin-bottom:0;font-size:clamp(1.8rem,3.2vw,3rem);line-height:1}h2{margin-bottom:10px;font-size:1rem;line-height:1.25}.brand-block{align-items:center;gap:12px;min-width:0;display:flex}.brand-mark{background:var(--surface-strong);width:44px;height:44px;color:var(--surface);border-radius:14px;flex:none;place-items:center;font-size:.88rem;font-weight:860;display:grid}.brand-block>div:last-child{min-width:0}.brand-block span{max-width:min(44vw,520px);color:var(--muted);text-overflow:ellipsis;white-space:nowrap;margin-top:4px;font-size:.9rem;font-weight:680;display:block;overflow:hidden}.header-actions{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.edition-control{color:var(--muted);align-items:center;gap:10px;font-size:.92rem;font-weight:700;display:flex}.edition-control select{border:1px solid var(--border);background:var(--surface);min-height:36px;color:var(--text);border-radius:999px;padding:0 30px 0 10px}.content-grid{grid-template-columns:minmax(220px,280px) minmax(0,1fr);gap:12px;min-height:0;display:grid}.history-panel{border:1px solid var(--border);background:var(--panel);min-height:0;box-shadow:var(--soft-shadow);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-radius:18px;grid-template-rows:auto minmax(0,1fr);display:grid;overflow:hidden}.history-header{border-bottom:1px solid var(--border);color:var(--muted);letter-spacing:.12em;text-transform:uppercase;justify-content:space-between;align-items:center;gap:10px;padding:12px;font-size:.78rem;font-weight:820;display:flex}.new-chat-button{border:1px solid var(--accent);background:var(--accent-soft);min-height:32px;color:var(--accent-strong);letter-spacing:0;text-transform:none;border-radius:999px;padding:0 12px;font-size:.82rem;font-weight:780}.new-chat-button:hover{border-color:var(--accent);background:var(--accent-soft)}.history-list{align-content:start;gap:8px;min-height:0;padding:10px;display:grid;overflow:auto}.history-item{background:0 0;border:1px solid #0000;border-radius:14px;grid-template-columns:minmax(0,1fr) 34px;align-items:stretch;min-width:0;display:grid}.history-item-active{border-color:var(--accent);background:var(--accent-soft)}.history-open,.history-delete{color:inherit;background:0 0;border:0}.history-open{text-align:left;gap:4px;min-width:0;padding:10px 8px 10px 10px;display:grid}.history-open span,.history-open small{text-overflow:ellipsis;white-space:nowrap;min-width:0;overflow:hidden}.history-open span{color:var(--text);font-size:.94rem;font-weight:760}.history-open small{color:var(--muted);font-size:.76rem}.history-delete{width:28px;height:28px;color:var(--muted);border-radius:999px;place-self:center;font-size:1.2rem;line-height:1}.history-delete:hover{color:var(--danger);background:#b3261e17}.chat-panel{-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-radius:18px;grid-template-rows:minmax(0,1fr) auto auto;min-height:0;display:grid;overflow:hidden}.message-list{align-content:start;gap:12px;padding:clamp(14px,2.2vw,26px);scroll-padding-bottom:120px;display:grid;overflow:auto}.empty-state{text-align:center;justify-self:center;gap:18px;width:min(680px,100%);padding:clamp(30px,9vh,96px) 4px;display:grid}.empty-mark{border:1px solid var(--border);background:var(--surface);width:clamp(72px,10vw,96px);height:clamp(72px,10vw,96px);box-shadow:var(--soft-shadow);color:var(--accent-strong);border-radius:22px;justify-self:center;place-items:center;font-size:clamp(1.7rem,3vw,2.4rem);font-weight:880;display:grid}.empty-state h2{margin:0;font-size:clamp(2.4rem,7vw,5.2rem);line-height:1}.example-list{flex-wrap:wrap;justify-content:center;gap:10px;display:flex}.example-button,.secondary-button,.primary-button{border:1px solid #0000;border-radius:999px;min-height:40px;padding:0 14px;font-weight:750}.example-button,.secondary-button{border-color:var(--border);background:var(--surface-muted);color:var(--text)}.primary-button{background:var(--accent);color:#fff}.primary-button:hover:not(:disabled){background:var(--accent-strong)}.message{border:1px solid var(--border);background:var(--surface);width:min(780px,100%);box-shadow:var(--message-shadow);border-radius:18px;padding:14px 15px}.message-user{background:var(--surface-strong);color:#fff;border-color:var(--surface-strong);border-bottom-right-radius:6px;justify-self:end}.message-user p{color:var(--surface)}.message-assistant{border-bottom-left-radius:6px;justify-self:start}.message-loading{color:var(--muted)}.message-meta{letter-spacing:.1em;text-transform:uppercase;color:var(--accent-strong);margin-bottom:8px;font-size:.72rem;font-weight:800}.message-user .message-meta{color:#b8d6c9}.message p{white-space:pre-wrap;overflow-wrap:anywhere;margin:0;line-height:1.58}.citation-list{flex-wrap:wrap;gap:8px;margin-top:12px;display:flex}.citation-chip{border:1px solid var(--accent);background:var(--accent-soft);max-width:100%;min-height:30px;color:var(--accent-strong);overflow-wrap:anywhere;border-radius:999px;align-items:center;padding:4px 10px;font-size:.83rem;font-weight:760;text-decoration:none;display:inline-flex}.citation-chip:hover{border-color:var(--accent);background:var(--accent-soft)}.error-message{color:var(--danger);margin:0 20px 14px;font-size:.92rem;line-height:1.5}.composer{border-top:1px solid var(--border);background:var(--panel-muted);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);grid-template-columns:minmax(0,1fr) auto;align-items:end;gap:10px;padding:12px;display:grid}.composer textarea{resize:none;border:1px solid var(--border);background:var(--surface);width:100%;min-height:48px;max-height:160px;color:var(--text);border-radius:18px;outline:none;padding:13px 15px;line-height:1.35;box-shadow:inset 0 1px #ffffff7a}.composer textarea:focus,.edition-control select:focus{border-color:var(--accent);box-shadow:0 0 0 4px var(--focus-ring)}.composer .primary-button{border-radius:18px;align-self:end;min-width:78px;min-height:48px}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.section-shell{background:var(--bg);min-height:100vh;padding:24px}.section-document{border:1px solid var(--border);background:var(--surface);max-width:920px;box-shadow:var(--shadow);border-radius:8px;margin:0 auto;padding:28px}.back-link{color:var(--accent-strong);margin-bottom:22px;font-weight:760;text-decoration:none;display:inline-flex}.back-link:hover{text-decoration:underline}.section-document h1{margin-bottom:12px;font-size:clamp(2rem,5vw,4rem);line-height:.98}.section-document h2{color:var(--muted);margin-bottom:22px;font-size:1.15rem;line-height:1.45}.section-note{color:var(--warning);background:#fff7e8;border:1px solid #e3c89e;border-radius:6px;padding:12px 14px;line-height:1.5}.pdf-callout{background:var(--accent-soft);color:var(--accent-strong);border:1px solid #a8d6ce;border-radius:6px;gap:4px;margin:18px 0;padding:12px 14px;line-height:1.45;display:grid}.pdf-frame{border:1px solid var(--border);background:var(--surface-muted);border-radius:8px;width:100%;height:min(78vh,980px);min-height:620px}.section-text-fallback{margin-top:18px}.section-text-fallback summary{cursor:pointer;color:var(--accent-strong);font-weight:760}.section-text{gap:14px;margin-top:22px;display:grid}.section-text p{color:var(--text);white-space:pre-wrap;overflow-wrap:anywhere;margin:0;font-family:ui-serif,Georgia,Cambria,Times New Roman,Times,serif;font-size:1.04rem;line-height:1.72}.section-footer{border-top:1px solid var(--border);color:var(--muted);margin:28px 0 0;padding-top:18px;font-size:.92rem;line-height:1.6}@media (max-width:860px){.app-shell{padding:10px}.chat-shell{gap:10px;min-height:calc(100vh - 20px)}.app-header{flex-direction:row;align-items:center;padding:12px}.eyebrow{display:none}h1{font-size:1.7rem}.content-grid{grid-template-columns:minmax(0,1fr)}.history-panel{grid-template-rows:auto auto;max-height:182px}.history-list{gap:8px;padding-bottom:12px;display:flex;overflow:auto hidden}.history-item{flex:0 0 min(78vw,260px)}.composer{grid-template-columns:minmax(0,1fr) auto;padding:10px}.composer .primary-button{width:auto;min-width:64px;padding:0 12px}.message{width:min(92%,780px)}.section-shell{padding:14px}.section-document{padding:20px}}