:root{--color-primary: #D4AF37;--color-primary-light: #E5C766;--color-primary-dark: #B8942D;--color-primary-glow: rgba(212, 175, 55, .3);--color-bg-primary: #0A0E1A;--color-bg-secondary: #0F172A;--color-bg-tertiary: #1E293B;--color-bg-card: rgba(30, 58, 95, .4);--color-bg-input: rgba(15, 23, 42, .8);--color-text-primary: #F8FAFC;--color-text-secondary: #94A3B8;--color-text-muted: #64748B;--color-accent-blue: #3B82F6;--color-accent-green: #10B981;--color-accent-red: #EF4444;--color-accent-purple: #8B5CF6;--color-border: rgba(212, 175, 55, .2);--color-border-hover: rgba(212, 175, 55, .4);--shadow-sm: 0 2px 8px rgba(0, 0, 0, .3);--shadow-md: 0 4px 20px rgba(0, 0, 0, .4);--shadow-lg: 0 8px 40px rgba(0, 0, 0, .5);--shadow-glow: 0 0 30px var(--color-primary-glow);--font-sans: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;--font-serif: "Playfair Display", Georgia, serif;--space-xs: .25rem;--space-sm: .5rem;--space-md: 1rem;--space-lg: 1.5rem;--space-xl: 2rem;--space-2xl: 3rem;--radius-sm: 6px;--radius-md: 12px;--radius-lg: 16px;--radius-full: 9999px;--transition-fast: .15s ease;--transition-normal: .25s ease;--transition-slow: .4s ease}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth}body{font-family:var(--font-sans);background:var(--color-bg-primary);color:var(--color-text-primary);line-height:1.6;min-height:100vh;overflow:hidden}body:before{content:"";position:fixed;top:0;left:0;right:0;bottom:0;background:radial-gradient(circle at 20% 20%,rgba(212,175,55,.05) 0%,transparent 50%),radial-gradient(circle at 80% 80%,rgba(59,130,246,.03) 0%,transparent 50%),linear-gradient(180deg,var(--color-bg-primary) 0%,var(--color-bg-secondary) 100%);z-index:-1}.app-container{display:flex;flex-direction:column;height:100vh;max-height:100vh}.header{display:flex;justify-content:space-between;align-items:center;padding:var(--space-md) var(--space-xl);background:var(--color-bg-secondary);border-bottom:1px solid var(--color-border);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.header-brand{display:flex;align-items:center;gap:var(--space-lg)}.logo{display:flex;align-items:center;gap:var(--space-sm)}.logo-icon{font-size:1.75rem;filter:drop-shadow(0 0 10px var(--color-primary-glow))}.logo-text{font-family:var(--font-serif);font-size:1.5rem;font-weight:700;background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-primary-light) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.tagline{color:var(--color-text-secondary);font-size:.875rem;padding-left:var(--space-lg);border-left:1px solid var(--color-border)}.header-status{display:flex;align-items:center;gap:var(--space-sm);color:var(--color-text-secondary);font-size:.875rem}.status-indicator{width:8px;height:8px;border-radius:var(--radius-full);background:var(--color-text-muted)}.status-indicator.online{background:var(--color-accent-green);box-shadow:0 0 10px var(--color-accent-green);animation:pulse 2s infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.main-content{display:flex;flex:1;overflow:hidden}.case-sidebar{width:320px;background:var(--color-bg-secondary);border-right:1px solid var(--color-border);padding:var(--space-lg);overflow-y:auto;display:flex;flex-direction:column;gap:var(--space-lg)}.sidebar-title{font-size:1rem;font-weight:600;color:var(--color-primary);padding-bottom:var(--space-md);border-bottom:1px solid var(--color-border)}.param-group{display:flex;flex-direction:column;gap:var(--space-xs)}.param-group label{font-size:.8125rem;color:var(--color-text-secondary);font-weight:500}.param-group select,.param-group input{background:var(--color-bg-input);border:1px solid var(--color-border);border-radius:var(--radius-sm);padding:var(--space-sm) var(--space-md);color:var(--color-text-primary);font-size:.875rem;font-family:var(--font-sans);transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}.param-group select:focus,.param-group input:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-primary-glow)}.param-group select option{background:var(--color-bg-secondary);color:var(--color-text-primary)}.quick-actions{margin-top:auto;padding-top:var(--space-lg);border-top:1px solid var(--color-border)}.quick-actions h3{font-size:.875rem;color:var(--color-primary);margin-bottom:var(--space-md)}.quick-btn{width:100%;background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-sm);padding:var(--space-sm) var(--space-md);color:var(--color-text-primary);font-size:.8125rem;font-family:var(--font-sans);text-align:left;cursor:pointer;margin-bottom:var(--space-sm);transition:all var(--transition-fast)}.quick-btn:hover{background:#d4af371a;border-color:var(--color-primary);transform:translate(4px)}.document-upload{padding-top:var(--space-lg);border-top:1px solid var(--color-border)}.document-upload h3{font-size:.875rem;color:var(--color-primary);margin-bottom:var(--space-md)}.upload-zone{border:2px dashed var(--color-border);border-radius:var(--radius-md);padding:var(--space-lg);text-align:center;cursor:pointer;transition:all var(--transition-fast);background:var(--color-bg-input)}.upload-zone:hover,.upload-zone.drag-over{border-color:var(--color-primary);background:#d4af370d}.upload-zone.drag-over{transform:scale(1.02);box-shadow:var(--shadow-glow)}.upload-content{display:flex;flex-direction:column;align-items:center;gap:var(--space-xs)}.upload-icon{font-size:2rem;opacity:.7}.upload-text{font-size:.8125rem;color:var(--color-text-secondary);line-height:1.4}.upload-formats{font-size:.6875rem;color:var(--color-text-muted);background:var(--color-bg-tertiary);padding:var(--space-xs) var(--space-sm);border-radius:var(--radius-sm);margin-top:var(--space-xs)}.uploaded-file{display:flex;align-items:center;gap:var(--space-sm);background:#d4af371a;border:1px solid var(--color-primary);border-radius:var(--radius-sm);padding:var(--space-sm) var(--space-md);margin-top:var(--space-sm)}.file-icon{font-size:1.25rem}.file-name{flex:1;font-size:.8125rem;color:var(--color-text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.file-remove{background:transparent;border:none;color:var(--color-text-muted);cursor:pointer;padding:var(--space-xs);font-size:1rem;transition:color var(--transition-fast)}.file-remove:hover{color:var(--color-accent-red)}.chat-area{flex:1;display:flex;flex-direction:column;background:var(--color-bg-primary);overflow:hidden}.chat-messages{flex:1;overflow-y:auto;padding:var(--space-xl);display:flex;flex-direction:column;gap:var(--space-lg)}.message{display:flex;gap:var(--space-md);max-width:85%;animation:fadeInUp .3s ease}@keyframes fadeInUp{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.assistant-message{align-self:flex-start}.user-message{align-self:flex-end;flex-direction:row-reverse}.message-avatar{width:40px;height:40px;border-radius:var(--radius-md);background:var(--color-bg-card);border:1px solid var(--color-border);display:flex;align-items:center;justify-content:center;font-size:1.25rem;flex-shrink:0}.user-message .message-avatar{background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-primary-dark) 100%);border:none}.message-content{background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-md) var(--space-lg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.user-message .message-content{background:linear-gradient(135deg,#d4af3726,#d4af370d);border-color:var(--color-primary)}.message-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--space-sm)}.message-sender{font-weight:600;font-size:.875rem;color:var(--color-primary)}.user-message .message-sender{color:var(--color-primary-light)}.message-time{font-size:.75rem;color:var(--color-text-muted)}.message-text{font-size:.9375rem;line-height:1.7}.message-text p{margin-bottom:var(--space-sm)}.message-text p:last-child{margin-bottom:0}.message-text ul{margin:var(--space-sm) 0;padding-left:var(--space-lg)}.message-text li{margin-bottom:var(--space-xs)}.message-text strong{color:var(--color-primary)}.message-text .hint{background:#d4af371a;padding:var(--space-sm) var(--space-md);border-radius:var(--radius-sm);border-left:3px solid var(--color-primary);margin-top:var(--space-md)}.message.loading .message-text:after{content:"";display:inline-block;width:20px;height:20px;border:2px solid var(--color-border);border-top-color:var(--color-primary);border-radius:50%;animation:spin 1s linear infinite;margin-left:var(--space-sm);vertical-align:middle}@keyframes spin{to{transform:rotate(360deg)}}.chat-input-area{padding:var(--space-lg) var(--space-xl);background:var(--color-bg-secondary);border-top:1px solid var(--color-border)}.input-wrapper{background:var(--color-bg-input);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-md);transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}.input-wrapper:focus-within{border-color:var(--color-primary);box-shadow:var(--shadow-glow)}#userInput{width:100%;background:transparent;border:none;color:var(--color-text-primary);font-size:.9375rem;font-family:var(--font-sans);resize:none;line-height:1.6}#userInput::placeholder{color:var(--color-text-muted)}#userInput:focus{outline:none}.input-actions{display:flex;justify-content:space-between;align-items:center;margin-top:var(--space-sm);padding-top:var(--space-sm);border-top:1px solid var(--color-border)}.char-counter{font-size:.75rem;color:var(--color-text-muted)}.send-btn{display:flex;align-items:center;gap:var(--space-sm);background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-primary-dark) 100%);border:none;border-radius:var(--radius-md);padding:var(--space-sm) var(--space-lg);color:var(--color-bg-primary);font-weight:600;font-size:.875rem;cursor:pointer;transition:all var(--transition-fast)}.send-btn:disabled{opacity:.5;cursor:not-allowed}.send-btn:not(:disabled):hover{transform:translateY(-2px);box-shadow:0 4px 20px var(--color-primary-glow)}.send-btn .btn-icon{transition:transform var(--transition-fast)}.send-btn:not(:disabled):hover .btn-icon{transform:translate(4px)}.disclaimer{text-align:center;font-size:.75rem;color:var(--color-text-muted);margin-top:var(--space-md)}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:var(--color-bg-primary)}::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--color-primary)}@media (max-width: 1024px){.case-sidebar{width:280px}}@media (max-width: 768px){.case-sidebar{display:none}.chat-messages,.chat-input-area{padding:var(--space-md)}.message{max-width:95%}}