:root{--color-white:#fff;--color-black:#000;--color-cream-50:#fcfcf9;--color-cream-100:#fffffd;--color-gray-200:#f5f5f5;--color-gray-300:#a7a9a9;--color-gray-400:#777c7c;--color-slate-500:#626c71;--color-brown-600:#5e5240;--color-charcoal-700:#1f2121;--color-charcoal-800:#262828;--color-slate-900:#13343b;--color-teal-300:#32b8c6;--color-teal-400:#2da6b2;--color-teal-500:#21808d;--color-teal-600:#1d7480;--color-teal-700:#1a6873;--color-teal-800:#2996a1;--color-red-400:#ff5459;--color-red-500:#c0152f;--color-orange-400:#e68161;--color-orange-500:#a84b2f;--color-brown-600-rgb:94,82,64;--color-teal-500-rgb:33,128,141;--color-slate-900-rgb:19,52,59;--color-slate-500-rgb:98,108,113;--color-red-500-rgb:192,21,47;--color-red-400-rgb:255,84,89;--color-orange-500-rgb:168,75,47;--color-orange-400-rgb:230,129,97;--color-bg-1:rgba(59,130,246,.08);--color-bg-2:rgba(245,158,11,.08);--color-bg-3:rgba(34,197,94,.08);--color-bg-4:rgba(239,68,68,.08);--color-bg-5:rgba(147,51,234,.08);--color-bg-6:rgba(249,115,22,.08);--color-bg-7:rgba(236,72,153,.08);--color-bg-8:rgba(6,182,212,.08);--color-background:var(--color-cream-50);--color-surface:var(--color-cream-100);--color-text:var(--color-slate-900);--color-text-secondary:var(--color-slate-500);--color-primary:var(--color-teal-500);--color-primary-hover:var(--color-teal-600);--color-primary-active:var(--color-teal-700);--color-secondary:rgba(var(--color-brown-600-rgb),0.12);--color-secondary-hover:rgba(var(--color-brown-600-rgb),0.2);--color-secondary-active:rgba(var(--color-brown-600-rgb),0.25);--color-border:rgba(var(--color-brown-600-rgb),0.2);--color-btn-primary-text:var(--color-cream-50);--color-card-border:rgba(var(--color-brown-600-rgb),0.12);--color-card-border-inner:rgba(var(--color-brown-600-rgb),0.12);--color-error:var(--color-red-500);--color-success:var(--color-teal-500);--color-warning:var(--color-orange-500);--color-info:var(--color-slate-500);--color-focus-ring:rgba(var(--color-teal-500-rgb),0.4);--color-select-caret:rgba(var(--color-slate-900-rgb),0.8);--focus-ring:0 0 0 3px var(--color-focus-ring);--focus-outline:2px solid var(--color-primary);--status-bg-opacity:0.15;--status-border-opacity:0.25;--select-caret-light:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23134252' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");--select-caret-dark:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23f5f5f5' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");--color-success-rgb:33,128,141;--color-error-rgb:192,21,47;--color-warning-rgb:168,75,47;--color-info-rgb:98,108,113;--font-family-base:"FKGroteskNeue","Geist","Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;--font-family-mono:"Berkeley Mono",ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--font-size-xs:11px;--font-size-sm:12px;--font-size-base:14px;--font-size-md:14px;--font-size-lg:16px;--font-size-xl:18px;--font-size-2xl:20px;--font-size-3xl:24px;--font-size-4xl:30px;--font-weight-normal:400;--font-weight-medium:500;--font-weight-semibold:550;--font-weight-bold:600;--line-height-tight:1.2;--line-height-normal:1.5;--letter-spacing-tight:-0.01em;--space-0:0;--space-1:1px;--space-2:2px;--space-4:4px;--space-6:6px;--space-8:8px;--space-10:10px;--space-12:12px;--space-16:16px;--space-20:20px;--space-24:24px;--space-32:32px;--radius-sm:6px;--radius-base:8px;--radius-md:10px;--radius-lg:12px;--radius-full:9999px;--shadow-xs:0 1px 2px rgba(0,0,0,.02);--shadow-sm:0 1px 3px rgba(0,0,0,.04),0 1px 2px rgba(0,0,0,.02);--shadow-md:0 4px 6px -1px rgba(0,0,0,.04),0 2px 4px -1px rgba(0,0,0,.02);--shadow-lg:0 10px 15px -3px rgba(0,0,0,.04),0 4px 6px -2px rgba(0,0,0,.02);--shadow-inset-sm:inset 0 1px 0 hsla(0,0%,100%,.15),inset 0 -1px 0 rgba(0,0,0,.03);--duration-fast:150ms;--duration-normal:250ms;--ease-standard:cubic-bezier(0.16,1,0.3,1);--container-sm:640px;--container-md:768px;--container-lg:1024px;--container-xl:1280px}@media (prefers-color-scheme:dark){:root{--color-gray-400-rgb:119,124,124;--color-teal-300-rgb:50,184,198;--color-gray-300-rgb:167,169,169;--color-gray-200-rgb:245,245,245;--color-bg-1:rgba(29,78,216,.15);--color-bg-2:rgba(180,83,9,.15);--color-bg-3:rgba(21,128,61,.15);--color-bg-4:rgba(185,28,28,.15);--color-bg-5:rgba(107,33,168,.15);--color-bg-6:rgba(194,65,12,.15);--color-bg-7:rgba(190,24,93,.15);--color-bg-8:rgba(8,145,178,.15);--color-background:var(--color-charcoal-700);--color-surface:var(--color-charcoal-800);--color-text:var(--color-gray-200);--color-text-secondary:rgba(var(--color-gray-300-rgb),0.7);--color-primary:var(--color-teal-300);--color-primary-hover:var(--color-teal-400);--color-primary-active:var(--color-teal-800);--color-secondary:rgba(var(--color-gray-400-rgb),0.15);--color-secondary-hover:rgba(var(--color-gray-400-rgb),0.25);--color-secondary-active:rgba(var(--color-gray-400-rgb),0.3);--color-border:rgba(var(--color-gray-400-rgb),0.3);--color-error:var(--color-red-400);--color-success:var(--color-teal-300);--color-warning:var(--color-orange-400);--color-info:var(--color-gray-300);--color-focus-ring:rgba(var(--color-teal-300-rgb),0.4);--color-btn-primary-text:var(--color-slate-900);--color-card-border:rgba(var(--color-gray-400-rgb),0.2);--color-card-border-inner:rgba(var(--color-gray-400-rgb),0.15);--shadow-inset-sm:inset 0 1px 0 hsla(0,0%,100%,.1),inset 0 -1px 0 rgba(0,0,0,.15);--button-border-secondary:rgba(var(--color-gray-400-rgb),0.2);--color-border-secondary:rgba(var(--color-gray-400-rgb),0.2);--color-select-caret:rgba(var(--color-gray-200-rgb),0.8);--focus-ring:0 0 0 3px var(--color-focus-ring);--focus-outline:2px solid var(--color-primary);--status-bg-opacity:0.15;--status-border-opacity:0.25;--select-caret-light:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23134252' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");--select-caret-dark:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23f5f5f5' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");--color-success-rgb:var(--color-teal-300-rgb);--color-error-rgb:var(--color-red-400-rgb);--color-warning-rgb:var(--color-orange-400-rgb);--color-info-rgb:var(--color-gray-300-rgb)}}[data-color-scheme=dark]{--color-gray-400-rgb:119,124,124;--color-teal-300-rgb:50,184,198;--color-gray-300-rgb:167,169,169;--color-gray-200-rgb:245,245,245;--color-bg-1:rgba(29,78,216,.15);--color-bg-2:rgba(180,83,9,.15);--color-bg-3:rgba(21,128,61,.15);--color-bg-4:rgba(185,28,28,.15);--color-bg-5:rgba(107,33,168,.15);--color-bg-6:rgba(194,65,12,.15);--color-bg-7:rgba(190,24,93,.15);--color-bg-8:rgba(8,145,178,.15);--color-background:var(--color-charcoal-700);--color-surface:var(--color-charcoal-800);--color-text:var(--color-gray-200);--color-text-secondary:rgba(var(--color-gray-300-rgb),0.7);--color-primary:var(--color-teal-300);--color-primary-hover:var(--color-teal-400);--color-primary-active:var(--color-teal-800);--color-secondary:rgba(var(--color-gray-400-rgb),0.15);--color-secondary-hover:rgba(var(--color-gray-400-rgb),0.25);--color-secondary-active:rgba(var(--color-gray-400-rgb),0.3);--color-border:rgba(var(--color-gray-400-rgb),0.3);--color-error:var(--color-red-400);--color-success:var(--color-teal-300);--color-warning:var(--color-orange-400);--color-info:var(--color-gray-300);--color-focus-ring:rgba(var(--color-teal-300-rgb),0.4);--color-btn-primary-text:var(--color-slate-900);--color-card-border:rgba(var(--color-gray-400-rgb),0.15);--color-card-border-inner:rgba(var(--color-gray-400-rgb),0.15);--shadow-inset-sm:inset 0 1px 0 hsla(0,0%,100%,.1),inset 0 -1px 0 rgba(0,0,0,.15);--color-border-secondary:rgba(var(--color-gray-400-rgb),0.2);--color-select-caret:rgba(var(--color-gray-200-rgb),0.8);--focus-ring:0 0 0 3px var(--color-focus-ring);--focus-outline:2px solid var(--color-primary);--status-bg-opacity:0.15;--status-border-opacity:0.25;--select-caret-light:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23134252' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");--select-caret-dark:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23f5f5f5' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");--color-success-rgb:var(--color-teal-300-rgb);--color-error-rgb:var(--color-red-400-rgb);--color-warning-rgb:var(--color-orange-400-rgb);--color-info-rgb:var(--color-gray-300-rgb)}[data-color-scheme=light]{--color-brown-600-rgb:94,82,64;--color-teal-500-rgb:33,128,141;--color-slate-900-rgb:19,52,59;--color-background:var(--color-cream-50);--color-surface:var(--color-cream-100);--color-text:var(--color-slate-900);--color-text-secondary:var(--color-slate-500);--color-primary:var(--color-teal-500);--color-primary-hover:var(--color-teal-600);--color-primary-active:var(--color-teal-700);--color-secondary:rgba(var(--color-brown-600-rgb),0.12);--color-secondary-hover:rgba(var(--color-brown-600-rgb),0.2);--color-secondary-active:rgba(var(--color-brown-600-rgb),0.25);--color-border:rgba(var(--color-brown-600-rgb),0.2);--color-btn-primary-text:var(--color-cream-50);--color-card-border:rgba(var(--color-brown-600-rgb),0.12);--color-card-border-inner:rgba(var(--color-brown-600-rgb),0.12);--color-error:var(--color-red-500);--color-success:var(--color-teal-500);--color-warning:var(--color-orange-500);--color-info:var(--color-slate-500);--color-focus-ring:rgba(var(--color-teal-500-rgb),0.4);--color-success-rgb:var(--color-teal-500-rgb);--color-error-rgb:var(--color-red-500-rgb);--color-warning-rgb:var(--color-orange-500-rgb);--color-info-rgb:var(--color-slate-500-rgb)}html{font-size:var(--font-size-base);font-family:var(--font-family-base);line-height:var(--line-height-normal);color:var(--color-text);background-color:var(--color-background);-webkit-font-smoothing:antialiased;box-sizing:border-box}body{margin:0;padding:0}*,:after,:before{box-sizing:inherit}h1,h2,h3,h4,h5,h6{margin:0;font-weight:var(--font-weight-semibold);line-height:var(--line-height-tight);color:var(--color-text);letter-spacing:var(--letter-spacing-tight)}h1{font-size:var(--font-size-4xl)}h2{font-size:var(--font-size-3xl)}h3{font-size:var(--font-size-2xl)}h4{font-size:var(--font-size-xl)}h5{font-size:var(--font-size-lg)}h6{font-size:var(--font-size-md)}p{margin:0 0 var(--space-16) 0}a{color:var(--color-primary);text-decoration:none;transition:color var(--duration-fast) var(--ease-standard)}a:hover{color:var(--color-primary-hover)}code,pre{font-family:var(--font-family-mono);font-size:calc(var(--font-size-base) * .95);background-color:var(--color-secondary);border-radius:var(--radius-sm)}code{padding:var(--space-1) var(--space-4)}pre{padding:var(--space-16);margin:var(--space-16) 0;overflow:auto;border:1px solid var(--color-border)}pre code{background:none;padding:0}.btn{display:inline-flex;align-items:center;justify-content:center;padding:var(--space-8) var(--space-16);border-radius:var(--radius-base);font-size:var(--font-size-base);font-weight:500;line-height:1.5;cursor:pointer;transition:all var(--duration-normal) var(--ease-standard);border:none;text-decoration:none;position:relative}.btn:focus-visible{outline:none;box-shadow:var(--focus-ring)}.btn--primary{background:var(--color-primary);color:var(--color-btn-primary-text)}.btn--primary:hover{background:var(--color-primary-hover)}.btn--primary:active{background:var(--color-primary-active)}.btn--secondary{background:var(--color-secondary);color:var(--color-text)}.btn--secondary:hover{background:var(--color-secondary-hover)}.btn--secondary:active{background:var(--color-secondary-active)}.btn--outline{background:transparent;border:1px solid var(--color-border);color:var(--color-text)}.btn--outline:hover{background:var(--color-secondary)}.btn--sm{padding:var(--space-4) var(--space-12);font-size:var(--font-size-sm);border-radius:var(--radius-sm)}.btn--lg{padding:var(--space-10) var(--space-20);font-size:var(--font-size-lg);border-radius:var(--radius-md)}.btn--full-width{width:100%}.btn:disabled{opacity:.5;cursor:not-allowed}.form-control{display:block;width:100%;padding:var(--space-8) var(--space-12);font-size:var(--font-size-md);line-height:1.5;color:var(--color-text);background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-base);transition:border-color var(--duration-fast) var(--ease-standard),box-shadow var(--duration-fast) var(--ease-standard)}textarea.form-control{font-family:var(--font-family-base);font-size:var(--font-size-base)}select.form-control{padding:var(--space-8) var(--space-12);-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:var(--select-caret-light);background-repeat:no-repeat;background-position:right var(--space-12) center;background-size:16px;padding-right:var(--space-32)}@media (prefers-color-scheme:dark){select.form-control{background-image:var(--select-caret-dark)}}[data-color-scheme=dark] select.form-control{background-image:var(--select-caret-dark)}[data-color-scheme=light] select.form-control{background-image:var(--select-caret-light)}.form-control:focus{border-color:var(--color-primary);outline:var(--focus-outline)}.form-label{display:block;margin-bottom:var(--space-8);font-weight:var(--font-weight-medium);font-size:var(--font-size-sm)}.form-group{margin-bottom:var(--space-16)}.card{background-color:var(--color-surface);border-radius:var(--radius-lg);border:1px solid var(--color-card-border);box-shadow:var(--shadow-sm);overflow:hidden;transition:box-shadow var(--duration-normal) var(--ease-standard)}.card:hover{box-shadow:var(--shadow-md)}.card__body{padding:var(--space-16)}.card__footer,.card__header{padding:var(--space-16);border-bottom:1px solid var(--color-card-border-inner)}.status{display:inline-flex;align-items:center;padding:var(--space-6) var(--space-12);border-radius:var(--radius-full);font-weight:var(--font-weight-medium);font-size:var(--font-size-sm)}.status--success{background-color:rgba(var(--color-success-rgb,33,128,141),var(--status-bg-opacity));color:var(--color-success);border:1px solid rgba(var(--color-success-rgb,33,128,141),var(--status-border-opacity))}.status--error{background-color:rgba(var(--color-error-rgb,192,21,47),var(--status-bg-opacity));color:var(--color-error);border:1px solid rgba(var(--color-error-rgb,192,21,47),var(--status-border-opacity))}.status--warning{background-color:rgba(var(--color-warning-rgb,168,75,47),var(--status-bg-opacity));color:var(--color-warning);border:1px solid rgba(var(--color-warning-rgb,168,75,47),var(--status-border-opacity))}.status--info{background-color:rgba(var(--color-info-rgb,98,108,113),var(--status-bg-opacity));color:var(--color-info);border:1px solid rgba(var(--color-info-rgb,98,108,113),var(--status-border-opacity))}.container{width:100%;margin-right:auto;margin-left:auto;padding-right:var(--space-16);padding-left:var(--space-16)}@media (min-width:640px){.container{max-width:var(--container-sm)}}@media (min-width:768px){.container{max-width:var(--container-md)}}@media (min-width:1024px){.container{max-width:var(--container-lg)}}@media (min-width:1280px){.container{max-width:var(--container-xl)}}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.gap-4{gap:var(--space-4)}.gap-8{gap:var(--space-8)}.gap-16{gap:var(--space-16)}.m-0{margin:0}.mt-8{margin-top:var(--space-8)}.mb-8{margin-bottom:var(--space-8)}.mx-8{margin-left:var(--space-8);margin-right:var(--space-8)}.my-8{margin-top:var(--space-8);margin-bottom:var(--space-8)}.p-0{padding:0}.py-8{padding-top:var(--space-8);padding-bottom:var(--space-8)}.px-8{padding-left:var(--space-8);padding-right:var(--space-8)}.py-16{padding-top:var(--space-16);padding-bottom:var(--space-16)}.px-16{padding-left:var(--space-16);padding-right:var(--space-16)}.block{display:block}.hidden{display:none}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border-width:0}:focus-visible{outline:var(--focus-outline);outline-offset:2px}[data-color-scheme=dark] .btn--outline{border:1px solid var(--color-border-secondary)}@font-face{font-family:FKGroteskNeue;src:url(https://r2cdn.perplexity.ai/fonts/FKGroteskNeue.woff2) format("woff2")}:root{--app-bg-base:#0a0a0b;--app-bg-main:#0d0d0f;--app-bg-elevated:#141416;--app-bg-surface:#1a1a1c;--app-bg-card:#1e1e22;--app-bg-hover:#252529;--app-primary:#32b8c6;--app-primary-hover:#3dd4e4;--app-primary-muted:rgba(50,184,198,.15);--app-primary-glow:rgba(50,184,198,.25);--app-text-primary:#f5f5f5;--app-text-secondary:#a1a1aa;--app-text-muted:#71717a;--app-border:hsla(0,0%,100%,.08);--app-border-strong:hsla(0,0%,100%,.15);--app-shadow-sm:0 2px 4px rgba(0,0,0,.3);--app-shadow-md:0 4px 12px rgba(0,0,0,.4);--app-shadow-lg:0 8px 24px rgba(0,0,0,.5);--app-shadow-glow:0 0 20px rgba(50,184,198,.15);--app-gradient-surface:linear-gradient(180deg,#1a1a1c,#141416);--app-gradient-card:linear-gradient(135deg,#1e1e22,#1a1a1c)}.app-container{display:flex;height:100vh;overflow:hidden;background:var(--app-bg-base);padding:.75rem;gap:.75rem}.chat-panel,.document-panel{flex:1 1;display:flex;flex-direction:column;overflow:hidden;background:var(--app-bg-main);border-radius:12px;border:1px solid var(--app-border);box-shadow:var(--app-shadow-lg)}.document-panel{max-width:50%}.chat-panel{background:var(--app-gradient-surface)}.panel-header{display:flex;justify-content:space-between;align-items:center;padding:1rem 1.25rem;border-bottom:1px solid var(--app-border);background:var(--app-bg-elevated);flex-shrink:0;border-radius:12px 12px 0 0}.panel-header h1{margin:0;font-size:1rem;font-weight:600;color:var(--app-text-primary);letter-spacing:.02em}.document-actions{display:flex;align-items:center;gap:var(--space-12)}.search-input{min-width:180px;background:var(--app-bg-surface)!important;border-color:var(--app-border)!important;color:var(--app-text-primary)!important}.search-input::placeholder{color:var(--app-text-muted)}.search-input:focus{border-color:var(--app-primary)!important;box-shadow:0 0 0 2px var(--app-primary-muted)!important}.llm-selector .form-control{min-width:280px;font-size:var(--font-size-sm)}.upload-zone-container{flex:1 1;display:flex;align-items:center;justify-content:center;padding:2rem;overflow:auto}.document-tabs{display:flex;background-color:var(--app-bg-elevated);border-bottom:1px solid var(--app-border);padding:0 .75rem;flex-shrink:0;gap:.25rem}.document-tab{display:flex;align-items:center;gap:.5rem;padding:.625rem .875rem;background:transparent;color:var(--app-text-secondary);font-size:.8125rem;cursor:pointer;transition:all .15s ease;border:none;border-bottom:2px solid transparent;margin-bottom:-1px}.document-tab:hover{color:var(--app-text-primary);background-color:hsla(0,0%,100%,.03)}.document-tab.active{color:#32b8c6;border-bottom-color:#32b8c6;background-color:transparent}.tab-close{margin-left:.25rem;padding:.125rem;border:none;background:none;color:var(--app-text-muted);cursor:pointer;border-radius:3px;font-size:.875rem;line-height:1;opacity:.6;transition:all .15s}.tab-close:hover{background-color:rgba(255,84,89,.15);color:#ff5459;opacity:1}.document-viewer{flex:1 1;display:flex;flex-direction:column;overflow:hidden;background:var(--app-bg-main)}.document-header{display:flex;justify-content:space-between;align-items:center;padding:.75rem 1rem;border-bottom:1px solid var(--app-border);background-color:var(--app-bg-elevated);flex-shrink:0}.document-header h2{margin:0;font-size:.875rem;font-weight:500;color:var(--app-text-primary)}.document-tools{display:flex;gap:.5rem}.document-content{flex:1 1;padding:1.25rem;overflow-y:auto;font-size:.875rem;line-height:1.65;color:var(--app-text-primary);background-color:var(--app-bg-main)}.document-content h1,.document-content h2,.document-content h3,.document-content h4,.document-content h5,.document-content h6{margin:1.25rem 0 .75rem;color:var(--app-text-primary)}.document-content h1{font-size:1.375rem;border-bottom:1px solid var(--app-border);padding-bottom:.5rem}.document-content h2{font-size:1.125rem;color:#32b8c6}.document-content h3{font-size:1rem}.document-content p{margin:.75rem 0;text-align:left;color:var(--app-text-secondary)}.document-content ol,.document-content ul{margin:var(--space-16) 0;padding-left:var(--space-24)}.document-content li{margin:var(--space-8) 0}.document-content strong{font-weight:var(--font-weight-semibold);color:var(--color-text)}.document-content em{font-style:italic;color:var(--color-text-secondary)}.document-content code{background-color:var(--color-bg-8);padding:var(--space-2) var(--space-6);border-radius:var(--radius-sm);font-family:var(--font-family-mono);font-size:calc(var(--font-size-base) * .9)}.document-content blockquote{border-left:4px solid var(--color-primary);padding-left:var(--space-16);margin:var(--space-20) 0;font-style:italic;color:var(--color-text-secondary)}.document-content .highlight{background-color:rgba(var(--color-teal-500-rgb),.2);border-radius:var(--radius-sm);padding:var(--space-1) var(--space-2);cursor:pointer;transition:background-color var(--duration-fast) var(--ease-standard)}.document-content .highlight:hover{background-color:rgba(var(--color-teal-500-rgb),.3)}.document-content .selection{background-color:rgba(var(--color-primary-rgb),.15)}.highlight-tooltip{position:absolute;border:1px solid var(--color-border);border-radius:var(--radius-base);padding:var(--space-8);box-shadow:var(--shadow-lg);z-index:1000;display:flex;gap:var(--space-8)}.highlight-tooltip,.tooltip-btn{background-color:var(--color-surface)}.tooltip-btn{padding:var(--space-4) var(--space-8);border:1px solid var(--color-border);color:var(--color-text);font-size:var(--font-size-xs);border-radius:var(--radius-sm);cursor:pointer;transition:all var(--duration-fast) var(--ease-standard)}.tooltip-btn:hover{background-color:var(--color-secondary)}.chat-status{flex:1 1;display:flex;align-items:center;justify-content:center;padding:var(--space-32);background:var(--app-bg-main)}.status-content{text-align:center;max-width:280px}.status-content svg{margin-bottom:var(--space-20);color:var(--app-text-muted);opacity:.5}.status-content h3{margin-bottom:var(--space-12);color:var(--app-text-primary);font-weight:500;font-size:1.1rem}.status-content p{margin:0;font-size:.875rem;color:var(--app-text-secondary);line-height:1.5}.quick-actions{padding:var(--space-20) var(--space-24);border-bottom:1px solid var(--color-border);background-color:var(--color-bg-4);flex-shrink:0}.quick-actions h3{margin:0 0 var(--space-16) 0;font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);color:var(--color-text)}.action-buttons{display:grid;grid-template-columns:1fr 1fr;grid-gap:var(--space-12);gap:var(--space-12)}.quick-action-btn{display:flex;align-items:center;gap:var(--space-8);padding:var(--space-12) var(--space-16);border:1px solid var(--color-border);background-color:var(--color-surface);color:var(--color-text);font-size:var(--font-size-sm);border-radius:var(--radius-base);cursor:pointer;transition:all var(--duration-fast) var(--ease-standard);text-align:left}.quick-action-btn:hover{background-color:var(--color-secondary);border-color:var(--color-primary)}.quick-action-btn svg{flex-shrink:0;color:var(--color-primary)}.chat-messages{flex:1 1;overflow-y:auto;padding:var(--space-20) var(--space-24);gap:var(--space-16)}.chat-message,.chat-messages{display:flex;flex-direction:column}.chat-message{max-width:85%}.chat-message.user{align-self:flex-end}.chat-message.assistant{align-self:flex-start}.message-content{padding:var(--space-12) var(--space-16);border-radius:var(--radius-lg);font-size:var(--font-size-base);line-height:var(--line-height-normal);white-space:pre-wrap}.chat-message.user .message-content{background-color:var(--color-primary);color:var(--color-btn-primary-text)}.chat-message.assistant .message-content{background-color:var(--color-bg-5);color:var(--color-text);border:1px solid var(--color-border)}.message-meta{font-size:var(--font-size-xs);color:var(--color-text-secondary);padding:var(--space-4) var(--space-8)}.chat-message.user .message-meta{text-align:right}.chat-message.assistant .message-meta{text-align:left}.message-content h4{margin:0 0 var(--space-8) 0;font-size:var(--font-size-base);font-weight:var(--font-weight-semibold)}.message-content ul{margin:var(--space-8) 0;padding-left:var(--space-20)}.message-content li{margin:var(--space-4) 0}.message-content strong{font-weight:var(--font-weight-semibold)}.message-content em{background-color:rgba(var(--color-primary-rgb),.1);padding:var(--space-1) var(--space-4)}.message-content em,.referenced-content{font-style:italic;border-radius:var(--radius-sm)}.referenced-content{margin-top:var(--space-12);padding:var(--space-12);background-color:rgba(var(--color-info-rgb),.05);border-left:3px solid var(--color-info);font-size:var(--font-size-sm);color:var(--color-text-secondary)}.chat-input-container{padding:var(--space-20) var(--space-24);border-top:1px solid var(--color-border);background-color:var(--color-surface);flex-shrink:0}.chat-input{display:flex;gap:var(--space-12);align-items:flex-end}.chat-input .form-control{flex:1 1;resize:none;min-height:44px;max-height:120px}.chat-input .btn{padding:var(--space-12) var(--space-16);flex-shrink:0}.loading-message{display:flex;align-items:center;gap:var(--space-8);font-size:var(--font-size-sm);color:var(--color-text-secondary);font-style:italic}.typing-indicator{display:flex;gap:var(--space-4)}.typing-dot{width:8px;height:8px;border-radius:50%;background-color:var(--color-primary);animation:typing 1.4s ease-in-out infinite}.typing-dot:first-child{animation-delay:-.32s}.typing-dot:nth-child(2){animation-delay:-.16s}@keyframes typing{0%,80%,to{transform:scale(0);opacity:.5}40%{transform:scale(1);opacity:1}}.processing-indicator{display:flex;align-items:center;gap:var(--space-12);padding:var(--space-16);background-color:var(--color-bg-6);border-radius:var(--radius-base);margin:var(--space-16);color:var(--color-text-secondary)}.processing-indicator .spinner{width:20px;height:20px;border:2px solid var(--color-border);border-top-color:var(--color-primary);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(1turn)}}@media (max-width:768px){.app-container{flex-direction:column}.chat-panel,.document-panel{height:50vh}.panel-header{flex-direction:column;gap:var(--space-12);align-items:stretch}.document-actions,.llm-selector{justify-content:stretch}.llm-selector .form-control,.search-input{min-width:auto}.action-buttons{grid-template-columns:1fr}.chat-message{max-width:95%}.upload-zone{margin:var(--space-16)}}@media (prefers-reduced-motion:reduce){.spinner,.typing-dot,.upload-zone{animation:none}.upload-zone.dragover{transform:none}}@media (prefers-contrast:high){.document-content .highlight{background-color:#ff0;color:#000}.message-content{border-width:2px}}.document-tab:focus,.quick-action-btn:focus,.tooltip-btn:focus{outline:2px solid var(--color-primary);outline-offset:2px}.chat-messages::-webkit-scrollbar,.document-content::-webkit-scrollbar{width:8px}.chat-messages::-webkit-scrollbar-track,.document-content::-webkit-scrollbar-track{background:var(--color-bg-1)}.chat-messages::-webkit-scrollbar-thumb,.document-content::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:var(--radius-full)}.chat-messages::-webkit-scrollbar-thumb:hover,.document-content::-webkit-scrollbar-thumb:hover{background:var(--color-text-secondary)}