:root{--ink: #14181b;--muted: #65747f;--line: #d8e0e4;--paper: #ffffff;--soft: #f5f8f9;--wash: #111416;--green: #0f5b62;--green-dark: #0a3e44;--gold: #f0c744;--gold-deep: #c59a19;--gold-soft: #fff3b6;--danger: #8a2831;color:var(--ink);background:#111416;font-family:Aptos,Segoe UI,Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,sans-serif;font-synthesis:none;text-rendering:optimizeLegibility}*{box-sizing:border-box}body{height:100vh;margin:0;min-width:320px;overflow:hidden}#root{height:100vh}button,input,select,textarea{font:inherit}button{border:0;cursor:pointer;transition:background-color .16s ease,border-color .16s ease,box-shadow .16s ease,transform .16s ease}button:disabled{cursor:not-allowed;opacity:.55}.center-screen{align-items:center;background:linear-gradient(180deg,#ffffffb8,#e8eef1eb),radial-gradient(circle at top left,rgba(198,160,74,.16),transparent 34%);display:flex;flex-direction:column;gap:16px;justify-content:center;min-height:100vh;padding:24px;text-align:center}.error-state h1{color:var(--ink);font-family:Georgia,Times New Roman,serif;font-size:1.55rem;margin:0}.error-state p{color:var(--muted);margin:0;max-width:560px}.error-state button,.upload-form button,.ask-form button{background:var(--green);border-radius:8px;color:#fff;font-weight:650;padding:10px 14px}.error-state button:hover,.upload-form button:hover,.ask-form button:hover{background:var(--green-dark);box-shadow:0 8px 20px #0f5b622e}.app-shell{background:radial-gradient(circle at 10% -15%,rgba(240,199,68,.18),transparent 26%),linear-gradient(180deg,#111416,#070809);display:flex;flex-direction:column;height:100vh;overflow:hidden}.topbar{align-items:center;background:#fffffff5;border-bottom:1px solid var(--line);box-shadow:0 1px #14181b08;display:flex;flex:0 0 auto;justify-content:space-between;min-height:72px;padding:14px 24px}.brand,.identity{align-items:center;display:flex;gap:12px}.brand>img{background:#fff;border:2px solid var(--gold);border-radius:8px;box-shadow:0 8px 18px #14181b1a;height:46px;object-fit:contain;padding:4px;width:46px}.brand h1{color:var(--ink);font-family:Georgia,Times New Roman,serif;font-size:1.28rem;font-weight:700;letter-spacing:0;line-height:1.2;margin:0}.brand span,.identity,.chat-heading span{color:var(--muted);font-size:.86rem}.identity{background:var(--soft);border:1px solid var(--line);border-radius:8px;color:var(--green-dark);min-width:0;padding:9px 12px}.identity span{max-width:260px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.icon-button{align-items:center;background:transparent;color:var(--green-dark);display:inline-flex;justify-content:center;padding:3px}.admin-band{background:#f8fafaf5;border-bottom:1px solid var(--line);display:grid;flex:0 0 auto;gap:10px;padding:12px 20px}.upload-form{align-items:center;display:grid;gap:10px;grid-template-columns:auto minmax(160px,1fr) minmax(180px,1.3fr) auto}.upload-form input,.viewer-toolbar select,.page-control input,.ask-form textarea{background:var(--paper);border:1px solid #cbd6dc;border-radius:8px;color:var(--ink);min-width:0;padding:9px 10px}.upload-form input:focus,.viewer-toolbar select:focus,.page-control input:focus,.ask-form textarea:focus{border-color:var(--green);box-shadow:0 0 0 3px #0f5b621f;outline:none}.admin-docs{display:flex;flex-wrap:wrap;gap:8px}.document-pill{align-items:center;background:var(--paper);border:1px solid var(--line);border-radius:8px;color:var(--ink);display:inline-flex;gap:8px;max-width:340px;padding:7px 9px}.document-pill span{color:var(--muted);font-size:.76rem}.admin-message{color:var(--green-dark);margin:0}.workspace{display:grid;flex:1;grid-template-columns:minmax(0,1.36fr) minmax(380px,.7fr);height:100%;min-height:0;overflow:hidden}.pdf-pane{background:radial-gradient(circle at 28% 10%,rgba(240,199,68,.12),transparent 32%),linear-gradient(180deg,#15191b,#050606);border-right:1px solid #2a2f31;display:flex;flex-direction:column;height:100%;min-height:0;min-width:0;overflow:hidden}.empty-pane,.library-pane{align-items:center;color:#c8d0d3;justify-content:center;padding:32px;text-align:center}.library-pane{align-self:center;background:#f2f0e6;border:1px solid #d8cf9f;border-radius:8px;box-shadow:0 22px 56px #00000052;color:#334047;margin:32px;max-width:760px;padding:36px;width:min(760px,calc(100% - 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