:root{--aws-orange: #FF9900;--aws-orange-dark: #E88B00;--aws-orange-light: #FFB84D;--aws-blue: #232F3E;--aws-blue-light: #37475A;--aws-blue-lighter: #4A5F7A;--aws-gray-50: #FAFBFC;--aws-gray-100: #F2F3F3;--aws-gray-200: #EAEDED;--aws-gray-300: #D5DBDB;--aws-gray-400: #AAB7B8;--aws-gray-500: #85929E;--aws-gray-600: #5D6D7E;--aws-gray-700: #34495E;--aws-gray-800: #2C3E50;--aws-gray-900: #1B2631;--aws-success: #16A085;--aws-warning: #F39C12;--aws-error: #E74C3C;--aws-info: #3498DB;--font-family-primary: "Inter", "Amazon Ember", "Helvetica Neue", Roboto, Arial, sans-serif;--font-family-mono: "Amazon Ember Mono", "SF Mono", "Monaco", "Courier New", monospace;--space-xs: 4px;--space-s: 8px;--space-m: 16px;--space-l: 24px;--space-xl: 32px;--space-xxl: 48px;--border-radius-s: 4px;--border-radius-m: 8px;--border-radius-l: 12px;--shadow-s: 0 1px 3px rgba(0, 0, 0, .12), 0 1px 2px rgba(0, 0, 0, .24);--shadow-m: 0 3px 6px rgba(0, 0, 0, .15), 0 2px 4px rgba(0, 0, 0, .12);--shadow-l: 0 10px 20px rgba(0, 0, 0, .15), 0 3px 6px rgba(0, 0, 0, .1);--transition-fast: .15s ease-in-out;--transition-normal: .25s ease-in-out;--transition-slow: .35s ease-in-out}*{box-sizing:border-box}body{margin:0;padding:0;font-family:var(--font-family-primary);background:linear-gradient(135deg,var(--aws-gray-50) 0%,var(--aws-gray-100) 100%);color:var(--aws-gray-800);line-height:1.6;min-height:100vh;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden}#root{min-height:100vh;display:flex;flex-direction:column}.app-header{background:var(--aws-blue);color:#fff;padding:var(--space-l) 0;box-shadow:var(--shadow-m);position:relative;overflow:hidden}.app-header:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(135deg,var(--aws-blue) 0%,var(--aws-blue-light) 100%);z-index:1}.header-content{position:relative;z-index:2;max-width:1200px;margin:0 auto;padding:0 var(--space-l);display:flex;align-items:center;gap:var(--space-l)}.aws-logo{width:60px;height:60px;opacity:1;flex-shrink:0;filter:drop-shadow(0 2px 4px rgba(0,0,0,.1));transition:transform var(--transition-fast);object-fit:contain}.aws-logo:hover{transform:scale(1.05)}.header-text h1{margin:0;font-size:2rem;font-weight:700;color:#fff}.header-text p{margin:var(--space-s) 0 0 0;color:var(--aws-gray-300);font-size:1.1rem}.container{flex:1;max-width:1200px;margin:0 auto;padding:var(--space-xxl) var(--space-l);width:100%;overflow:hidden}.controls-section{background:#fff;border-radius:var(--border-radius-l);padding:var(--space-l);margin-bottom:var(--space-xl);box-shadow:var(--shadow-s);border:1px solid var(--aws-gray-200)}.btn{display:inline-flex;align-items:center;gap:var(--space-s);padding:var(--space-m) var(--space-l);border:none;border-radius:var(--border-radius-s);font-family:var(--font-family-primary);font-size:1rem;font-weight:600;cursor:pointer;transition:all var(--transition-fast);text-decoration:none;position:relative;overflow:hidden}.btn-primary{background:var(--aws-orange);color:#fff;box-shadow:var(--shadow-s)}.btn-primary:hover:not(:disabled){background:var(--aws-orange-dark);transform:translateY(-1px);box-shadow:var(--shadow-m)}.btn-primary:active{transform:translateY(0)}.btn:disabled{background:var(--aws-gray-300);color:var(--aws-gray-500);cursor:not-allowed;transform:none;box-shadow:none}.spinner{width:20px;height:20px;border:2px solid transparent;border-top:2px solid currentColor;border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.alert{padding:var(--space-m);border-radius:var(--border-radius-s);margin:var(--space-l) 0;display:flex;align-items:flex-start;gap:var(--space-m);font-weight:500}.alert-error{background:#fdf2f2;border:1px solid #FECACA;color:var(--aws-error)}.alert-info{background:#eff6ff;border:1px solid #BFDBFE;color:var(--aws-info)}.alert-icon{width:20px;height:20px;flex-shrink:0;margin-top:2px}.documents-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(400px,100%),1fr));gap:var(--space-l);margin-top:var(--space-xl);width:100%;overflow:hidden}.document-card{background:#fff;border-radius:var(--border-radius-l);padding:var(--space-l);box-shadow:var(--shadow-s);border:1px solid var(--aws-gray-200);transition:all var(--transition-normal);position:relative;overflow:hidden}.document-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-l);border-color:var(--aws-orange-light)}.document-card:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--aws-orange) 0%,var(--aws-orange-light) 100%)}.document-title{margin:0 0 var(--space-m) 0;font-size:1.25rem;font-weight:700;color:var(--aws-blue);line-height:1.4}.document-summary{margin-bottom:var(--space-l)}.document-summary strong{display:block;color:var(--aws-gray-700);font-weight:600;margin-bottom:var(--space-s);font-size:.9rem;text-transform:uppercase;letter-spacing:.5px}.document-summary p{margin:0;color:var(--aws-gray-600);line-height:1.6}.document-link{display:inline-flex;align-items:center;gap:var(--space-s);color:var(--aws-orange);text-decoration:none;font-weight:600;font-size:.9rem;transition:color var(--transition-fast)}.document-link:hover{color:var(--aws-orange-dark)}.external-link-icon{width:16px;height:16px}.empty-state{text-align:center;padding:var(--space-xxl);color:var(--aws-gray-500)}.empty-state-icon{width:64px;height:64px;margin:0 auto var(--space-l) auto;opacity:.5}.loading-state{text-align:center;padding:var(--space-xxl);color:var(--aws-gray-600)}.loading-state .spinner{width:32px;height:32px;margin:0 auto var(--space-l) auto;border-width:3px}@media (max-width: 768px){.container{padding:var(--space-l) var(--space-m)}.header-content{padding:0 var(--space-m);flex-direction:column;text-align:center;gap:var(--space-m)}.header-text h1{font-size:1.5rem}.documents-grid{grid-template-columns:1fr;gap:var(--space-m)}.document-card{padding:var(--space-m)}}@media (max-width: 480px){.btn{width:100%;justify-content:center}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.document-card{animation:fadeInUp .5s ease-out}.document-card:nth-child(2){animation-delay:.1s}.document-card:nth-child(3){animation-delay:.2s}.document-card:nth-child(4){animation-delay:.3s}.controls-section{animation:fadeIn .3s ease-out}.app-header{animation:fadeIn .4s ease-out}.btn:focus-visible{outline:2px solid var(--aws-orange);outline-offset:2px}.document-link:focus-visible{outline:2px solid var(--aws-orange);outline-offset:2px;border-radius:var(--border-radius-s)}.loading-state p{font-size:1.1rem;margin-top:var(--space-m)}.empty-state h3{color:var(--aws-gray-700);margin:var(--space-m) 0;font-size:1.5rem}.empty-state p{max-width:400px;margin:0 auto;line-height:1.6}.document-card:after{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(135deg,transparent 0%,rgba(255,153,0,.02) 100%);pointer-events:none;opacity:0;transition:opacity var(--transition-normal)}.document-card:hover:after{opacity:1}.document-status{display:inline-flex;align-items:center;gap:var(--space-xs);padding:var(--space-xs) var(--space-s);background:var(--aws-gray-100);border-radius:var(--border-radius-s);font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.5px;color:var(--aws-gray-600);margin-bottom:var(--space-s)}.document-status.processed{background:#e8f5e8;color:var(--aws-success)}.btn-primary:focus{box-shadow:0 0 0 3px #ff99004d}@media (max-width: 768px){.header-text h1{font-size:1.75rem}.header-text p{font-size:1rem}.document-title{font-size:1.1rem}}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#0009;display:flex;align-items:center;justify-content:center;z-index:10000;padding:var(--space-l);animation:fadeIn .2s ease-out;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}.modal-content{background:#fff;border-radius:var(--border-radius-l);box-shadow:0 20px 60px #0000004d;width:100%;max-width:500px;max-height:90vh;overflow-y:auto;animation:fadeInUp .3s ease-out;position:relative;transform:translateY(0)}.modal-header h2{margin:0;color:var(--aws-blue);font-size:1.5rem;font-weight:700}.modal-close{background:none;border:none;cursor:pointer;padding:var(--space-s);border-radius:var(--border-radius-s);color:var(--aws-gray-500);transition:all var(--transition-fast)}.modal-close:hover{background:var(--aws-gray-100);color:var(--aws-gray-700)}.close-icon{width:20px;height:20px}.import-form{padding:var(--space-l)}.form-group{margin-bottom:var(--space-l)}.form-group label{display:block;margin-bottom:var(--space-s);font-weight:600;color:var(--aws-gray-700)}.form-group input[type=text]{width:100%;padding:var(--space-m);border:1px solid var(--aws-gray-300);border-radius:var(--border-radius-s);font-family:var(--font-family-primary);font-size:1rem;transition:border-color var(--transition-fast)}.form-group input[type=text]:focus{outline:none;border-color:var(--aws-orange);box-shadow:0 0 0 3px #ff99001a}.file-drop-zone{border:2px dashed var(--aws-gray-300);border-radius:var(--border-radius-m);padding:var(--space-xl);text-align:center;cursor:pointer;transition:all var(--transition-fast);background:var(--aws-gray-50)}.file-drop-zone:hover{border-color:var(--aws-orange);background:#ff99000d}.file-drop-zone.drag-over{border-color:var(--aws-orange);background:#ff99001a;transform:scale(1.02)}.file-drop-zone.has-file{border-color:var(--aws-success);background:#16a0850d}.file-drop-prompt{color:var(--aws-gray-600)}.file-drop-prompt .upload-icon{width:48px;height:48px;margin:0 auto var(--space-m) auto;color:var(--aws-gray-400)}.file-drop-prompt p{margin:0 0 var(--space-s) 0;font-weight:600;font-size:1.1rem}.file-drop-prompt small{color:var(--aws-gray-500);font-size:.9rem}.file-selected{display:flex;flex-direction:column;align-items:center;gap:var(--space-s);color:var(--aws-success)}.file-selected .empty-state-icon{width:32px;height:32px;margin:0;opacity:1}.file-selected span{font-weight:600;font-size:1rem}.file-selected small{color:var(--aws-gray-500);font-size:.85rem}.modal-actions{display:flex;gap:var(--space-m);justify-content:flex-end;margin-top:var(--space-xl);padding-top:var(--space-l);border-top:1px solid var(--aws-gray-200)}.btn-secondary{background:var(--aws-gray-100);color:var(--aws-gray-700);border:1px solid var(--aws-gray-300)}.btn-secondary:hover:not(:disabled){background:var(--aws-gray-200);border-color:var(--aws-gray-400)}.alert-success{background:#e8f5e8;border:1px solid #C3E6CB;color:var(--aws-success)}.alert{position:relative}.alert-close{background:none;border:none;cursor:pointer;padding:var(--space-xs);border-radius:var(--border-radius-s);color:currentColor;opacity:.7;transition:opacity var(--transition-fast);margin-left:auto}.alert-close:hover{opacity:1}.alert-link{color:currentColor;text-decoration:underline;margin-left:var(--space-s);font-weight:600}.alert-link:hover{text-decoration:none}.controls-section{display:flex;gap:var(--space-m);align-items:center;flex-wrap:wrap}.upload-icon,.refresh-icon{width:20px;height:20px}@media (max-width: 768px){.modal-overlay{padding:var(--space-m)}.modal-content{max-height:95vh}.modal-header,.import-form{padding:var(--space-m)}.modal-actions{flex-direction:column-reverse}.modal-actions .btn{width:100%;justify-content:center}}.import-form .spinner{width:16px;height:16px}.file-drop-zone input[type=file]{position:absolute;opacity:0;width:100%;height:100%;cursor:pointer}@keyframes successPulse{0%{transform:scale(1)}50%{transform:scale(1.05)}to{transform:scale(1)}}.alert-success{animation:successPulse .6s ease-out}.word-cloud-container{background:#fff;border-radius:var(--border-radius-l);padding:var(--space-l);margin-bottom:var(--space-xl);box-shadow:var(--shadow-s);border:1px solid var(--aws-gray-200);animation:fadeInUp .6s ease-out}.word-cloud-header{text-align:center;margin-bottom:var(--space-l);padding-bottom:var(--space-m);border-bottom:2px solid var(--aws-gray-100)}.word-cloud-header h3{margin:0 0 var(--space-s) 0;font-size:1.5rem;font-weight:700;color:var(--aws-blue);display:flex;align-items:center;justify-content:center;gap:var(--space-s)}.word-cloud-header h3:before,.word-cloud-header h3:after{content:"";width:30px;height:2px;background:linear-gradient(90deg,var(--aws-orange) 0%,var(--aws-orange-light) 100%);border-radius:1px}.word-cloud-header p{margin:0;color:var(--aws-gray-600);font-size:.95rem}.word-cloud{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:var(--space-s) var(--space-m);min-height:120px;padding:var(--space-m);position:relative}.word-cloud-item{display:inline-block;font-weight:600;cursor:pointer;transition:all var(--transition-normal);animation:wordFadeIn .8s ease-out both;position:relative;padding:var(--space-xs) var(--space-s);border-radius:var(--border-radius-s);white-space:nowrap}.word-cloud-item:hover{transform:scale(1.1);z-index:10;background:#ffffffe6;box-shadow:var(--shadow-s)}@keyframes wordFadeIn{0%{opacity:0;transform:translateY(20px) scale(.8)}50%{opacity:.7;transform:translateY(-5px) scale(1.05)}to{opacity:1;transform:translateY(0) scale(1)}}@keyframes wordFloat{0%,to{transform:translateY(0)}50%{transform:translateY(-3px)}}.word-cloud-item:nth-child(odd){animation:wordFadeIn .8s ease-out both,wordFloat 4s ease-in-out infinite}.word-cloud-item:nth-child(2n){animation:wordFadeIn .8s ease-out both,wordFloat 4s ease-in-out infinite reverse}.word-cloud-item:nth-child(3n){animation-delay:.5s,1s}.word-cloud-item:nth-child(5n){animation-delay:1s,2s}.word-cloud-item:nth-child(7n){animation-delay:1.5s,3s}@media (max-width: 768px){.word-cloud{gap:var(--space-xs) var(--space-s);padding:var(--space-s)}.word-cloud-item{font-size:.8rem!important;padding:2px var(--space-xs)}.word-cloud-header h3{font-size:1.25rem}.word-cloud-header h3:before,.word-cloud-header h3:after{width:20px}}@media (max-width: 480px){.word-cloud-container{padding:var(--space-m)}.word-cloud{min-height:100px}.word-cloud-item{font-size:.7rem!important}}.word-cloud-item:after{content:attr(title);position:absolute;bottom:100%;left:50%;transform:translate(-50%);background:var(--aws-blue);color:#fff;padding:var(--space-xs) var(--space-s);border-radius:var(--border-radius-s);font-size:.75rem;white-space:nowrap;opacity:0;pointer-events:none;transition:opacity var(--transition-fast);z-index:100;margin-bottom:var(--space-xs)}.word-cloud-item:before{content:"";position:absolute;bottom:100%;left:50%;transform:translate(-50%);border:4px solid transparent;border-top-color:var(--aws-blue);opacity:0;pointer-events:none;transition:opacity var(--transition-fast);z-index:100}.word-cloud-item:hover:after,.word-cloud-item:hover:before{opacity:1}.word-cloud:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:radial-gradient(circle at center,rgba(255,153,0,.03) 0%,transparent 70%);border-radius:var(--border-radius-m);pointer-events:none}.search-section{background:#fff;border-radius:var(--border-radius-l);padding:var(--space-l);margin-bottom:var(--space-xl);box-shadow:var(--shadow-s);border:1px solid var(--aws-gray-200);animation:fadeInUp .5s ease-out}.search-input-container{position:relative;display:flex;align-items:center;max-width:600px;margin:0 auto}.search-icon{position:absolute;left:var(--space-m);width:20px;height:20px;color:var(--aws-gray-400);z-index:2}.search-input{width:100%;padding:var(--space-m) var(--space-xxl) var(--space-m) 50px;border:2px solid var(--aws-gray-300);border-radius:var(--border-radius-m);font-family:var(--font-family-primary);font-size:1rem;transition:all var(--transition-fast);background:var(--aws-gray-50)}.search-input:focus{outline:none;border-color:var(--aws-orange);background:#fff;box-shadow:0 0 0 3px #ff99001a}.search-input::placeholder{color:var(--aws-gray-500)}.search-clear{position:absolute;right:var(--space-m);background:none;border:none;cursor:pointer;padding:var(--space-xs);border-radius:var(--border-radius-s);color:var(--aws-gray-400);transition:all var(--transition-fast);z-index:2}.search-clear:hover{background:var(--aws-gray-100);color:var(--aws-gray-600)}.search-clear .close-icon{width:16px;height:16px}.search-results-container{background:#fff;border-radius:var(--border-radius-l);padding:var(--space-l);margin-bottom:var(--space-xl);box-shadow:var(--shadow-s);border:1px solid var(--aws-gray-200);animation:fadeInUp .4s ease-out}.search-results-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-l);padding-bottom:var(--space-m);border-bottom:2px solid var(--aws-gray-100)}.search-results-header h3{margin:0;font-size:1.25rem;font-weight:700;color:var(--aws-blue);display:flex;align-items:center;gap:var(--space-s)}.search-results-header .spinner{width:20px;height:20px}.btn-sm{padding:var(--space-s) var(--space-m);font-size:.875rem}.search-empty{text-align:center;padding:var(--space-xl);color:var(--aws-gray-500)}.search-empty p{margin:0;font-size:1rem}.search-results{display:flex;flex-direction:column;gap:var(--space-l)}.search-result-item{padding:var(--space-l);border:1px solid var(--aws-gray-200);border-radius:var(--border-radius-m);background:var(--aws-gray-50);transition:all var(--transition-fast);position:relative}.search-result-item:hover{background:#fff;border-color:var(--aws-orange-light);transform:translateY(-1px);box-shadow:var(--shadow-s)}.search-result-title{margin:0 0 var(--space-s) 0;font-size:1.1rem;font-weight:600}.search-result-title a{color:var(--aws-blue);text-decoration:none;display:flex;align-items:center;gap:var(--space-s);transition:color var(--transition-fast)}.search-result-title a:hover{color:var(--aws-orange)}.search-result-title .external-link-icon{width:16px;height:16px;opacity:.7}.search-result-snippet{margin:0 0 var(--space-m) 0;color:var(--aws-gray-600);line-height:1.6;font-size:.95rem}.search-result-meta{display:flex;gap:var(--space-s);flex-wrap:wrap}.search-badge{display:inline-flex;align-items:center;padding:var(--space-xs) var(--space-s);background:var(--aws-orange);color:#fff;border-radius:var(--border-radius-s);font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.5px}.search-highlight{background:#ff99004d;padding:1px 2px;border-radius:2px;font-weight:600}.search-result-item{animation:searchResultFadeIn .4s ease-out both}.search-result-item:nth-child(2){animation-delay:.1s}.search-result-item:nth-child(3){animation-delay:.2s}.search-result-item:nth-child(4){animation-delay:.3s}@keyframes searchResultFadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@media (max-width: 768px){.search-section{padding:var(--space-m)}.search-input-container{max-width:none}.search-input{padding:var(--space-m) 40px var(--space-m) 40px;font-size:16px}.search-results-header{flex-direction:column;align-items:flex-start;gap:var(--space-m)}.search-results-header h3{font-size:1.1rem}.search-result-item{padding:var(--space-m)}.search-result-title{font-size:1rem}.search-result-snippet{font-size:.9rem}}@media (max-width: 480px){.search-input{padding:var(--space-s) 35px var(--space-s) 35px}.search-icon{left:var(--space-s);width:18px;height:18px}.search-clear{right:var(--space-s)}.search-result-meta{margin-top:var(--space-s)}.search-badge{font-size:.7rem;padding:2px var(--space-xs)}}.search-results-container .loading-state{padding:var(--space-l)}.search-results-container .loading-state .spinner{width:24px;height:24px;margin:0 auto var(--space-m) auto}.search-clear:focus-visible{outline:2px solid var(--aws-orange);outline-offset:2px}.search-result-title a:focus-visible{outline:2px solid var(--aws-orange);outline-offset:2px;border-radius:var(--border-radius-s)}.floating-chat-button{position:fixed;bottom:24px;right:24px;width:56px;height:56px;background:var(--aws-orange);border:none;border-radius:50%;color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-l);transition:all var(--transition-fast);z-index:1000;pointer-events:auto}.floating-chat-button:hover{background:var(--aws-orange-dark);transform:scale(1.05)}.floating-chat-button.active{background:var(--aws-blue)}.floating-chat-button .chat-icon{width:24px;height:24px}.chat-interface{position:fixed;bottom:96px;right:24px;width:400px;height:600px;background:#fff;border-radius:var(--border-radius-l);box-shadow:var(--shadow-l);display:flex;flex-direction:column;z-index:999;border:1px solid var(--aws-gray-300)}.chat-header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-m);border-bottom:1px solid var(--aws-gray-200);background:var(--aws-gray-50);border-radius:var(--border-radius-l) var(--border-radius-l) 0 0}.chat-title{display:flex;align-items:center;gap:var(--space-s)}.chat-title .chat-icon{width:20px;height:20px;color:var(--aws-orange)}.chat-title h3{margin:0;font-size:16px;font-weight:600;color:var(--aws-blue)}.chat-close{background:none;border:none;cursor:pointer;padding:var(--space-xs);border-radius:var(--border-radius-s);color:var(--aws-gray-600);transition:all var(--transition-fast)}.chat-close:hover{background:var(--aws-gray-200);color:var(--aws-gray-800)}.chat-close .close-icon{width:16px;height:16px}.chat-messages{flex:1;overflow-y:auto;padding:var(--space-m);display:flex;flex-direction:column;gap:var(--space-m)}.chat-welcome{text-align:center;color:var(--aws-gray-600);padding:var(--space-l)}.chat-welcome p{margin:0 0 var(--space-m) 0}.chat-welcome ul{text-align:left;margin:0;padding-left:var(--space-l)}.chat-welcome li{margin-bottom:var(--space-s);font-style:italic}.chat-message{display:flex;margin-bottom:var(--space-m)}.chat-message.user{justify-content:flex-end}.chat-message.assistant{justify-content:flex-start}.message-content{max-width:80%;padding:var(--space-m);border-radius:var(--border-radius-m);font-size:14px;line-height:1.5}.chat-message.user .message-content{background:var(--aws-orange);color:#fff;border-bottom-right-radius:var(--border-radius-s)}.chat-message.assistant .message-content{background:var(--aws-gray-100);color:var(--aws-gray-800);border-bottom-left-radius:var(--border-radius-s)}.documents-used{margin-top:var(--space-s);padding-top:var(--space-s);border-top:1px solid rgba(255,255,255,.2)}.chat-message.assistant .documents-used{border-top-color:var(--aws-gray-300)}.documents-used small{opacity:.8;font-size:12px}.message-citations{margin-top:var(--space-s);padding-top:var(--space-s);border-top:1px solid var(--aws-gray-300)}.citations-header{font-size:13px;margin-bottom:var(--space-xs);color:var(--aws-gray-700)}.citations-list{display:flex;flex-direction:column;gap:var(--space-xs)}.citation-item{font-size:13px}.citation-link{color:var(--aws-blue);text-decoration:none;display:inline-flex;align-items:center;gap:4px;transition:all .2s ease;padding:4px 8px;border-radius:var(--border-radius-s);background:#007bff0d}.citation-link:hover{background:#007bff1a;text-decoration:underline}.citation-text{color:var(--aws-gray-700);display:inline-flex;align-items:center;gap:4px;padding:4px 8px}.chat-input-form{display:flex;padding:var(--space-m);border-top:1px solid var(--aws-gray-200);background:var(--aws-gray-50);border-radius:0 0 var(--border-radius-l) var(--border-radius-l);gap:var(--space-s)}.chat-input{flex:1;padding:var(--space-m);border:1px solid var(--aws-gray-300);border-radius:var(--border-radius-m);font-size:14px;font-family:var(--font-family-primary);outline:none;transition:border-color var(--transition-fast)}.chat-input:focus{border-color:var(--aws-orange)}.chat-input:disabled{background:var(--aws-gray-100);color:var(--aws-gray-500)}.chat-send-button{padding:var(--space-m);background:var(--aws-orange);border:none;border-radius:var(--border-radius-m);color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all var(--transition-fast);min-width:48px}.chat-send-button:hover:not(:disabled){background:var(--aws-orange-dark)}.chat-send-button:disabled{background:var(--aws-gray-400);cursor:not-allowed}.chat-send-button .send-icon{width:16px;height:16px}.chat-message.assistant .message-content .spinner{width:16px;height:16px;margin-right:var(--space-s);display:inline-block;vertical-align:middle}@media (max-width: 768px){.chat-interface{width:calc(100vw - 32px);height:70vh;max-height:calc(100vh - 120px);bottom:80px;right:16px;left:16px}.floating-chat-button{bottom:20px;right:20px}}body.chat-open{overflow:hidden}@media (min-width: 769px){body.chat-open{overflow:auto}}.auth-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;background:linear-gradient(135deg,var(--aws-gray-50) 0%,var(--aws-gray-100) 100%);color:var(--aws-gray-600)}.auth-loading .spinner{width:48px;height:48px;border-width:4px;margin-bottom:var(--space-l)}.auth-loading p{font-size:1.1rem;margin:0}.login-screen{display:flex;align-items:center;justify-content:center;min-height:100vh;background:linear-gradient(135deg,var(--aws-blue) 0%,var(--aws-blue-light) 100%);padding:var(--space-l);position:relative;overflow:hidden}.login-screen:before{content:"";position:absolute;top:-50%;right:-50%;width:100%;height:100%;background:radial-gradient(circle,rgba(255,153,0,.1) 0%,transparent 70%);animation:loginPulse 8s ease-in-out infinite}@keyframes loginPulse{0%,to{transform:scale(1) translate(0);opacity:.5}50%{transform:scale(1.2) translate(-10%,10%);opacity:.8}}.login-container{background:#fff;border-radius:var(--border-radius-l);box-shadow:0 20px 60px #0000004d;max-width:500px;width:100%;overflow:hidden;animation:loginFadeIn .6s ease-out;position:relative;z-index:1}@keyframes loginFadeIn{0%{opacity:0;transform:translateY(30px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}.login-header{background:linear-gradient(135deg,var(--aws-blue) 0%,var(--aws-blue-light) 100%);color:#fff;padding:var(--space-xxl) var(--space-l);text-align:center;position:relative}.login-header:after{content:"";position:absolute;bottom:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--aws-orange) 0%,var(--aws-orange-light) 100%)}.login-header .aws-logo{width:100px;height:100px;margin:0 auto var(--space-l) auto;filter:drop-shadow(0 4px 8px rgba(0,0,0,.15))}.login-header h1{margin:0 0 var(--space-s) 0;font-size:1.5rem;font-weight:700;line-height:1.3}.login-header p{margin:0;font-size:.95rem;opacity:.9;font-weight:500;color:var(--aws-orange-light)}.login-content{padding:var(--space-xxl) var(--space-l)}.login-info{text-align:center;margin-bottom:var(--space-xl)}.login-info h2{margin:0 0 var(--space-m) 0;font-size:1.5rem;font-weight:700;color:var(--aws-blue)}.login-info p{margin:0 0 var(--space-s) 0;color:var(--aws-gray-600);line-height:1.6}.btn-large{width:100%;padding:var(--space-l);font-size:1.1rem;justify-content:center;box-shadow:var(--shadow-m)}.btn-large:hover:not(:disabled){transform:translateY(-2px);box-shadow:var(--shadow-l)}.login-icon{width:24px;height:24px}.login-footer{margin-top:var(--space-xl);padding-top:var(--space-l);border-top:1px solid var(--aws-gray-200)}.login-disclaimer{margin:0;font-size:.85rem;color:var(--aws-gray-500);text-align:center;line-height:1.5}.header-user{display:flex;align-items:center;gap:var(--space-m);margin-left:auto}.user-info{color:#fff;font-weight:500;font-size:.95rem;padding:var(--space-s) var(--space-m);background:#ffffff1a;border-radius:var(--border-radius-s);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.header-user .btn-secondary{background:#ffffff26;color:#fff;border:1px solid rgba(255,255,255,.3);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.header-user .btn-secondary:hover:not(:disabled){background:#ffffff40;border-color:#ffffff80}@media (max-width: 768px){.login-screen{padding:var(--space-m)}.login-container{max-width:none}.login-header{padding:var(--space-xl) var(--space-m)}.login-header h1{font-size:1.25rem}.login-header .aws-logo{width:80px;height:80px}.login-content{padding:var(--space-xl) var(--space-m)}.login-info h2{font-size:1.25rem}.btn-large{padding:var(--space-m);font-size:1rem}.header-content{flex-wrap:wrap}.header-user{width:100%;justify-content:center;margin-left:0;margin-top:var(--space-m)}.user-info{font-size:.85rem;padding:var(--space-xs) var(--space-s)}}@media (max-width: 480px){.login-header h1,.login-info h2{font-size:1.1rem}.login-info p{font-size:.9rem}.login-disclaimer{font-size:.8rem}}.unauthorized-message{text-align:center;padding:var(--space-xxl);color:var(--aws-error)}.unauthorized-message h2{margin:0 0 var(--space-m) 0;font-size:1.5rem;font-weight:700}.unauthorized-message p{margin:0 0 var(--space-l) 0;color:var(--aws-gray-600)}.login-actions{display:flex;flex-direction:column;gap:var(--space-m);margin-bottom:var(--space-xl)}.login-actions .btn{flex:0 0 auto}.btn-full-width{width:100%;justify-content:center}.floating-alert{position:fixed;top:24px;right:24px;max-width:400px;z-index:1001;animation:slideInRight .4s ease-out;box-shadow:var(--shadow-l)}@keyframes slideInRight{0%{opacity:0;transform:translate(100%)}to{opacity:1;transform:translate(0)}}@media (max-width: 768px){.floating-import-button{bottom:20px;right:20px;left:20px;justify-content:center}.floating-alert{top:20px;right:20px;left:20px;max-width:none}}@media (max-width: 480px){.floating-import-button{padding:var(--space-m);font-size:.95rem}}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#0009;display:flex;align-items:center;justify-content:center;z-index:1000;padding:var(--space-l);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.modal-content{background:#fff;border-radius:var(--border-radius-l);box-shadow:var(--shadow-l);max-width:600px;width:100%;max-height:90vh;display:flex;flex-direction:column;animation:fadeInUp .3s ease-out}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-l);border-bottom:1px solid var(--aws-gray-200)}.modal-header h2{margin:0;font-size:1.5rem;color:var(--aws-blue)}.modal-close{background:none;border:none;cursor:pointer;padding:var(--space-s);color:var(--aws-gray-500);transition:color var(--transition-fast);display:flex;align-items:center;justify-content:center}.modal-close:hover:not(:disabled){color:var(--aws-gray-800)}.modal-close:disabled{opacity:.5;cursor:not-allowed}.modal-close .close-icon{width:24px;height:24px}.modal-footer{padding:var(--space-l);border-top:1px solid var(--aws-gray-200);display:flex;justify-content:flex-end;gap:var(--space-m)}body.modal-open{overflow:hidden}.recording-modal{max-width:800px}.recording-modal-body{padding:var(--space-l);overflow-y:auto;flex:1}.recording-controls{display:flex;flex-direction:column;align-items:center;gap:var(--space-l);padding:var(--space-xl) 0;border-bottom:1px solid var(--aws-gray-200);margin-bottom:var(--space-l)}.recording-buttons{display:flex;gap:var(--space-m);flex-wrap:wrap;justify-content:center}.recording-status{display:flex;flex-direction:column;align-items:center;gap:var(--space-m)}.recording-indicator{display:flex;align-items:center;gap:var(--space-s);color:var(--aws-error);font-weight:600;font-size:1.1rem}.recording-dot{width:12px;height:12px;background:var(--aws-error);border-radius:50%;animation:pulse 1.5s ease-in-out infinite}@keyframes pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(1.1)}}.recording-timer{font-size:3rem;font-weight:700;color:var(--aws-blue);font-family:var(--font-family-mono);letter-spacing:.05em}.btn-large{padding:var(--space-l) var(--space-xl);font-size:1.1rem;min-width:200px}.btn-danger{background:var(--aws-error);color:#fff;box-shadow:var(--shadow-s)}.btn-danger:hover:not(:disabled){background:#c0392b;transform:translateY(-1px);box-shadow:var(--shadow-m)}.record-icon,.stop-icon{font-size:1.5rem;line-height:1}.transcript-section{margin-top:var(--space-l)}.transcript-section h3{margin:0 0 var(--space-m) 0;font-size:1.1rem;color:var(--aws-gray-700);font-weight:600}.transcript-area{background:var(--aws-gray-50);border:1px solid var(--aws-gray-200);border-radius:var(--border-radius-m);padding:var(--space-m);min-height:200px;max-height:400px;overflow-y:auto;font-family:var(--font-family-mono);font-size:.9rem;line-height:1.6}.transcript-placeholder{color:var(--aws-gray-400);text-align:center;padding:var(--space-xl);margin:0;font-style:italic}.transcript-segment{margin-bottom:var(--space-s);display:flex;gap:var(--space-s)}.transcript-timestamp{color:var(--aws-gray-500);flex-shrink:0;font-weight:600}.transcript-text{color:var(--aws-gray-800);flex:1}.recording-success{text-align:center;padding:var(--space-xxl)}.success-icon{width:80px;height:80px;background:var(--aws-success);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:3rem;margin:0 auto var(--space-l) auto;animation:scaleIn .5s ease-out}@keyframes scaleIn{0%{transform:scale(0);opacity:0}to{transform:scale(1);opacity:1}}.recording-success h3{margin:0 0 var(--space-m) 0;color:var(--aws-blue);font-size:1.5rem}.recording-success p{margin:0 0 var(--space-xl) 0;color:var(--aws-gray-600);font-size:1.1rem}.recording-modal-body .alert{margin:0 0 var(--space-l) 0}.alert-success{background:#f0fdf4;border:1px solid #BBF7D0;color:var(--aws-success)}@media (max-width: 768px){.modal-content{max-width:100%;max-height:100vh;border-radius:0}.recording-timer{font-size:2.5rem}.btn-large{min-width:180px;padding:var(--space-m) var(--space-l)}.recording-buttons{width:100%}.recording-buttons .btn{flex:1;min-width:140px}}.playback-modal{max-width:800px}.playback-modal-body{padding:var(--space-l);overflow-y:auto;flex:1}.audio-player-section{background:var(--aws-gray-50);border:1px solid var(--aws-gray-200);border-radius:var(--border-radius-m);padding:var(--space-l);margin-bottom:var(--space-xl)}.audio-controls{display:flex;align-items:center;gap:var(--space-m)}.btn-play-pause{width:56px;height:56px;background:var(--aws-orange);border:none;border-radius:50%;color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:1.2rem;transition:all var(--transition-fast);box-shadow:var(--shadow-s);flex-shrink:0}.btn-play-pause:hover:not(:disabled){background:var(--aws-orange-dark);transform:scale(1.05);box-shadow:var(--shadow-m)}.btn-play-pause:disabled{background:var(--aws-gray-400);cursor:not-allowed;transform:none}.play-icon,.pause-icon{line-height:1}.audio-time-info{display:flex;align-items:center;gap:var(--space-xs);font-family:var(--font-family-mono);font-size:.9rem;color:var(--aws-gray-700);font-weight:600;flex-shrink:0}.time-separator{color:var(--aws-gray-400)}.audio-progress-container{flex:1;cursor:pointer;padding:var(--space-s) 0}.audio-progress-bar{height:6px;background:var(--aws-gray-300);border-radius:3px;position:relative;overflow:hidden}.audio-progress-fill{height:100%;background:linear-gradient(90deg,var(--aws-orange) 0%,var(--aws-orange-light) 100%);border-radius:3px;transition:width .1s linear;position:relative}.audio-progress-fill:after{content:"";position:absolute;right:0;top:50%;transform:translateY(-50%);width:12px;height:12px;background:#fff;border:2px solid var(--aws-orange);border-radius:50%;box-shadow:var(--shadow-s)}.audio-progress-container:hover .audio-progress-bar{height:8px}.audio-progress-container:hover .audio-progress-fill:after{width:14px;height:14px}.transcript-display-section{margin-top:var(--space-l)}.transcript-display-section h3{margin:0 0 var(--space-m) 0;font-size:1.1rem;color:var(--aws-gray-700);font-weight:600}.transcript-display-area{background:#fff;border:1px solid var(--aws-gray-200);border-radius:var(--border-radius-m);padding:var(--space-l);max-height:400px;overflow-y:auto;line-height:1.8;color:var(--aws-gray-800)}.transcript-display-area p{margin:0 0 var(--space-m) 0}.transcript-display-area strong{color:var(--aws-gray-600);font-weight:600}.alert-warning{background:#fef3c7;border:1px solid #FCD34D;color:var(--aws-warning)}@media (max-width: 768px){.playback-modal{max-width:100%;max-height:100vh;border-radius:0}.audio-controls{flex-wrap:wrap}.audio-time-info{order:3;width:100%;justify-content:center;margin-top:var(--space-s)}.audio-progress-container{order:2;width:100%}.btn-play-pause{width:48px;height:48px;font-size:1rem}.transcript-display-area{max-height:300px;padding:var(--space-m)}}@media (max-width: 480px){.audio-player-section{padding:var(--space-m)}.audio-controls{gap:var(--space-s)}.btn-play-pause{width:44px;height:44px}.transcript-display-area{font-size:.9rem}}.documents-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-l);padding:var(--space-l);background:#fff;border-radius:var(--border-radius-l);box-shadow:var(--shadow-s);border:1px solid var(--aws-gray-200)}.documents-header h2{margin:0;font-size:1.5rem;font-weight:700;color:var(--aws-blue)}.sort-controls{display:flex;align-items:center;gap:var(--space-s)}.sort-controls label{font-weight:600;color:var(--aws-gray-700);font-size:.9rem}.sort-select{padding:var(--space-s) var(--space-m);border:1px solid var(--aws-gray-300);border-radius:var(--border-radius-s);background:#fff;color:var(--aws-gray-800);font-family:var(--font-family-primary);font-size:.9rem;cursor:pointer;transition:all var(--transition-fast);min-width:140px}.sort-select:focus{outline:none;border-color:var(--aws-orange);box-shadow:0 0 0 3px #ff99001a}.sort-select:hover{border-color:var(--aws-gray-400)}.load-more-container{display:flex;justify-content:center;align-items:center;padding:var(--space-xl);margin-top:var(--space-l)}.loading-more{display:flex;align-items:center;gap:var(--space-s);color:var(--aws-gray-600);font-weight:500}.loading-more .spinner{width:20px;height:20px}.load-more-info{text-align:center;color:var(--aws-gray-500);font-size:.9rem;line-height:1.5}.load-more-info small{color:var(--aws-gray-400);font-size:.8rem;font-style:italic}@media (max-width: 768px){.documents-header{flex-direction:column;align-items:flex-start;gap:var(--space-m);padding:var(--space-m)}.documents-header h2{font-size:1.25rem}.sort-controls{width:100%;justify-content:space-between}.sort-select{min-width:120px}.load-more-container{padding:var(--space-l)}.load-more-info{font-size:.85rem}}@media (max-width: 480px){.documents-header{padding:var(--space-s)}.documents-header h2{font-size:1.1rem}.sort-controls{flex-direction:column;align-items:flex-start;gap:var(--space-xs)}.sort-controls label{font-size:.85rem}.sort-select{width:100%;min-width:auto;font-size:.85rem}.loading-more{font-size:.9rem}.load-more-info{font-size:.8rem}}@keyframes documentSlideIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.document-card.newly-loaded{animation:documentSlideIn .4s ease-out}.documents-grid{transition:all var(--transition-normal)}.sort-select:focus-visible{outline:2px solid var(--aws-orange);outline-offset:2px}.search-result-actions{display:flex;gap:var(--space-s);margin-top:var(--space-m);flex-wrap:wrap}.search-result-actions .btn{flex:1;min-width:120px;justify-content:center}.summary-title{margin:0 0 var(--space-m) 0;font-size:1.25rem;font-weight:700;color:var(--aws-blue);line-height:1.4}.summary-content{color:var(--aws-gray-700);line-height:1.6}.summary-content p{margin:0 0 var(--space-m) 0}.summary-content ul{margin:0 0 var(--space-m) 0;padding-left:var(--space-l)}.summary-content li{margin-bottom:var(--space-s)}.modal-body{padding:var(--space-l);overflow-y:auto;max-height:calc(90vh - 200px)}.modal-footer{display:flex;gap:var(--space-m);justify-content:flex-end;padding:var(--space-l);border-top:1px solid var(--aws-gray-200);background:var(--aws-gray-50);border-radius:0 0 var(--border-radius-l) var(--border-radius-l)}.modal-footer .btn{margin:0}@media (max-width: 768px){.search-result-actions{flex-direction:column}.search-result-actions .btn{width:100%;min-width:unset}.modal-body{max-height:calc(90vh - 180px)}.modal-footer{flex-direction:column-reverse}.modal-footer .btn{width:100%;justify-content:center}}