:root{--color-bg-primary: #0a0a0f;--color-bg-secondary: #12121a;--color-bg-tertiary: #1a1a24;--color-bg-elevated: #22222e;--color-glass-bg: rgba(255, 255, 255, .03);--color-glass-border: rgba(255, 255, 255, .08);--color-glass-hover: rgba(255, 255, 255, .06);--color-text-primary: #f4f4f5;--color-text-secondary: #a1a1aa;--color-text-muted: #71717a;--color-text-disabled: #52525b;--color-primary: #8b5cf6;--color-primary-hover: #7c3aed;--color-primary-glow: rgba(139, 92, 246, .3);--color-success: #22c55e;--color-success-hover: #16a34a;--color-success-glow: rgba(34, 197, 94, .3);--color-warning: #f59e0b;--color-warning-glow: rgba(245, 158, 11, .3);--color-error: #ef4444;--color-error-glow: rgba(239, 68, 68, .3);--color-info: #3b82f6;--color-info-glow: rgba(59, 130, 246, .3);--accent-primary: #8b5cf6;--accent-secondary: #6366f1;--gradient-primary: linear-gradient(135deg, #8b5cf6 0%, #6366f1 100%);--gradient-success: linear-gradient(135deg, #22c55e 0%, #10b981 100%);--gradient-glass: linear-gradient(135deg, rgba(255, 255, 255, .1) 0%, rgba(255, 255, 255, .02) 100%);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);--shadow-md: 0 4px 6px rgba(0, 0, 0, .3), 0 1px 3px rgba(0, 0, 0, .2);--shadow-lg: 0 10px 25px rgba(0, 0, 0, .4), 0 4px 10px rgba(0, 0, 0, .3);--shadow-glow-primary: 0 0 20px var(--color-primary-glow);--shadow-glow-success: 0 0 20px var(--color-success-glow);--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.25rem;--space-6: 1.5rem;--space-8: 2rem;--space-10: 2.5rem;--space-12: 3rem;--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--radius-2xl: 1.5rem;--radius-full: 9999px;--font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-size-xs: .75rem;--font-size-sm: .875rem;--font-size-base: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.25rem;--font-size-2xl: 1.5rem;--font-size-3xl: 1.875rem;--transition-fast: .15s ease;--transition-base: .2s ease;--transition-slow: .3s ease}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-family);font-size:var(--font-size-base);line-height:1.6;color:var(--color-text-primary);background:var(--color-bg-primary);min-height:100vh}body:before{content:"";position:fixed;inset:0;background:radial-gradient(ellipse at 20% 20%,rgba(139,92,246,.08) 0%,transparent 50%),radial-gradient(ellipse at 80% 80%,rgba(99,102,241,.06) 0%,transparent 50%),radial-gradient(ellipse at 50% 50%,rgba(34,197,94,.04) 0%,transparent 60%);pointer-events:none;z-index:-1}.app-container{min-height:100vh;display:flex;flex-direction:column}.header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-4) var(--space-8);background:var(--color-glass-bg);border-bottom:1px solid var(--color-glass-border);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);position:sticky;top:0;z-index:100}.header-left{display:flex;align-items:center;gap:var(--space-3)}.logo{font-size:var(--font-size-xl);font-weight:600;display:flex;align-items:center;gap:var(--space-2);background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.logo-icon{font-size:var(--font-size-2xl);-webkit-text-fill-color:initial}.version-badge{font-size:var(--font-size-xs);font-weight:500;padding:var(--space-1) var(--space-2);background:var(--color-primary);color:#fff;border-radius:var(--radius-full)}.header-right{display:flex;align-items:center;gap:var(--space-3)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);padding:var(--space-2) var(--space-4);font-family:inherit;font-size:var(--font-size-sm);font-weight:500;line-height:1.5;border:none;border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-base);white-space:nowrap}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--gradient-primary);color:#fff;box-shadow:var(--shadow-sm)}.btn-primary:hover:not(:disabled){transform:translateY(-1px);box-shadow:var(--shadow-glow-primary)}.btn-success{background:var(--gradient-success);color:#fff;box-shadow:var(--shadow-sm)}.btn-success:hover:not(:disabled){transform:translateY(-1px);box-shadow:var(--shadow-glow-success)}.btn-secondary{background:var(--color-bg-tertiary);color:var(--color-text-primary);border:1px solid var(--color-glass-border)}.btn-secondary:hover:not(:disabled){background:var(--color-bg-elevated);border-color:var(--color-text-muted)}.btn-ghost{background:transparent;color:var(--color-text-secondary)}.btn-ghost:hover:not(:disabled){background:var(--color-glass-hover);color:var(--color-text-primary)}.btn-large{padding:var(--space-3) var(--space-6);font-size:var(--font-size-base)}.btn-sm{padding:var(--space-1) var(--space-2);font-size:var(--font-size-xs)}.btn-icon{padding:var(--space-2)}.main-content{flex:1;padding:var(--space-8);max-width:1400px;margin:0 auto;width:100%}.upload-section{display:flex;align-items:center;justify-content:center;min-height:calc(100vh - 200px)}.upload-card{text-align:center;padding:var(--space-12);background:var(--color-glass-bg);border:2px dashed var(--color-glass-border);border-radius:var(--radius-2xl);max-width:500px;width:100%;transition:all var(--transition-base)}.upload-card:hover{border-color:var(--color-primary);background:var(--color-glass-hover)}.upload-card.dragover{border-color:var(--color-success);background:#22c55e1a;transform:scale(1.02)}.upload-icon{color:var(--color-primary);margin-bottom:var(--space-6);animation:float 3s ease-in-out infinite}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}.upload-card h2{font-size:var(--font-size-2xl);font-weight:600;margin-bottom:var(--space-3)}.upload-description{color:var(--color-text-secondary);margin-bottom:var(--space-6);line-height:1.8}.upload-dropzone{display:none;padding:var(--space-4);color:var(--color-success);font-weight:500}.upload-card.dragover .upload-dropzone{display:block}.annotation-section{display:flex;flex-direction:column;gap:var(--space-6)}.progress-container{background:var(--color-glass-bg);border:1px solid var(--color-glass-border);border-radius:var(--radius-lg);padding:var(--space-4)}.progress-info{display:flex;justify-content:space-between;margin-bottom:var(--space-2)}.progress-text{font-size:var(--font-size-sm);color:var(--color-text-secondary)}.progress-count{font-size:var(--font-size-sm);font-weight:600;color:var(--color-primary)}.progress-bar{height:8px;background:var(--color-bg-tertiary);border-radius:var(--radius-full);overflow:hidden}.progress-fill{height:100%;background:var(--gradient-primary);border-radius:var(--radius-full);transition:width var(--transition-slow);width:0%}.annotation-grid{display:grid;grid-template-columns:1fr 1fr;grid-template-rows:auto auto;gap:var(--space-6)}.panel{background:var(--color-glass-bg);border:1px solid var(--color-glass-border);border-radius:var(--radius-xl);overflow:hidden;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}.panel-header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-4) var(--space-5);background:var(--gradient-glass);border-bottom:1px solid var(--color-glass-border)}.panel-header h3{font-size:var(--font-size-base);font-weight:600;display:flex;align-items:center;gap:var(--space-2)}.panel-content{padding:var(--space-5)}.item-number{font-size:var(--font-size-sm);color:var(--color-text-muted);font-weight:500}.line-item-panel{grid-row:span 2}.line-item-details{display:flex;flex-direction:column;gap:var(--space-4)}.line-item-field{display:flex;flex-direction:column;gap:var(--space-1)}.field-label{font-size:var(--font-size-xs);font-weight:500;color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.05em}.field-value{font-size:var(--font-size-base);color:var(--color-text-primary);word-break:break-word}.field-value.highlight{font-size:var(--font-size-lg);font-weight:600;color:var(--color-primary)}.recommendation-content{min-height:120px}.recommendation-placeholder{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--space-3);padding:var(--space-6);color:var(--color-text-muted)}.recommendation-result{display:flex;flex-direction:column;gap:var(--space-4)}.recommendation-category{padding:var(--space-4);background:#8b5cf61a;border:1px solid rgba(139,92,246,.3);border-radius:var(--radius-lg)}.recommendation-code{font-size:var(--font-size-lg);font-weight:700;color:var(--color-primary);margin-bottom:var(--space-1)}.recommendation-name{font-size:var(--font-size-sm);color:var(--color-text-secondary)}.recommendation-confidence{display:flex;align-items:center;gap:var(--space-2);font-size:var(--font-size-sm);color:var(--color-text-muted)}.confidence-bar{flex:1;height:6px;background:var(--color-bg-tertiary);border-radius:var(--radius-full);overflow:hidden}.confidence-fill{height:100%;background:var(--color-success);border-radius:var(--radius-full);transition:width var(--transition-base)}.recommendation-reasoning{font-size:var(--font-size-sm);color:var(--color-text-secondary);font-style:italic}.recommendation-actions{display:flex;gap:var(--space-3);margin-top:var(--space-4)}.recommendation-error{padding:var(--space-4);background:#ef44441a;border:1px solid rgba(239,68,68,.3);border-radius:var(--radius-lg);color:var(--color-error);font-size:var(--font-size-sm)}.category-selector{display:flex;flex-direction:column;gap:var(--space-4)}.selector-group{display:flex;flex-direction:column;gap:var(--space-2)}.selector-group label{font-size:var(--font-size-sm);font-weight:500;color:var(--color-text-secondary)}.select-input{width:100%;padding:var(--space-3);font-family:inherit;font-size:var(--font-size-sm);color:var(--color-text-primary);background:var(--color-bg-tertiary);border:1px solid var(--color-glass-border);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast);appearance:none;background-image: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='%23a1a1aa' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right var(--space-3) center;padding-right:var(--space-10)}.select-input:hover:not(:disabled){border-color:var(--color-primary)}.select-input:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #8b5cf633}.select-input:disabled{opacity:.5;cursor:not-allowed}.select-input option{background:var(--color-bg-secondary);color:var(--color-text-primary)}.selected-category{margin-top:var(--space-4);padding:var(--space-4);background:#22c55e1a;border:1px solid rgba(34,197,94,.3);border-radius:var(--radius-lg)}.category-badge{display:flex;flex-direction:column;gap:var(--space-1)}.category-code{font-size:var(--font-size-lg);font-weight:700;color:var(--color-success)}.category-name{font-size:var(--font-size-sm);color:var(--color-text-secondary)}.navigation-controls{display:flex;align-items:center;justify-content:space-between;padding:var(--space-4);background:var(--color-glass-bg);border:1px solid var(--color-glass-border);border-radius:var(--radius-lg)}.nav-center{display:flex;gap:var(--space-3)}.modal{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;z-index:1000;gap:1rem;margin-top:2rem}.modal-footer .btn{min-width:120px}.recent-sessions-container{margin-top:3rem;width:100%;max-width:800px;animation:fadeIn .8s ease-out .2s backwards}.section-title{font-size:1.25rem;font-weight:600;margin-bottom:1.5rem;color:var(--text-secondary);padding-left:.5rem}.session-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1.5rem}.session-card{background:#1e293b66;border:1px solid rgba(255,255,255,.05);border-radius:16px;padding:1.5rem;cursor:pointer;transition:all .3s ease;position:relative;overflow:hidden;display:flex;flex-direction:column;gap:.75rem}.session-card:before{content:"";position:absolute;top:0;left:0;right:0;height:100%;background:linear-gradient(180deg,rgba(255,255,255,.03) 0%,transparent 100%);pointer-events:none}.session-card:hover{transform:translateY(-4px);background:#1e293b99;border-color:#6366f14d;box-shadow:0 10px 30px -10px #00000080}.session-card-header{display:flex;justify-content:space-between;align-items:flex-start}.session-name{font-weight:600;font-size:1.1rem;color:var(--text-primary);margin-bottom:.25rem;word-break:break-all;display:-webkit-box;-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.session-date{font-size:.8rem;color:var(--text-tertiary)}.session-progress{margin-top:auto}.progress-info{display:flex;justify-content:space-between;font-size:.85rem;color:var(--text-secondary);margin-bottom:.5rem}.progress-track{height:6px;background:#ffffff0d;border-radius:3px;overflow:hidden}.progress-fill{height:100%;background:linear-gradient(90deg,var(--accent-primary) 0%,var(--accent-secondary) 100%);border-radius:3px;transition:width .3s ease}.session-actions{position:absolute;top:1rem;right:1rem;opacity:0;transition:opacity .2s ease}.session-card:hover .session-actions{opacity:1}.delete-session-btn{background:#ef44441a;color:var(--error-color);border:none;width:32px;height:32px;border-radius:8px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s ease}.delete-session-btn:hover{background:#ef444433;transform:scale(1.1)}.modal-backdrop{position:absolute;inset:0;background:#000000b3;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px)}.modal-content{position:relative;background:var(--color-bg-secondary);border:1px solid var(--color-glass-border);border-radius:var(--radius-xl);width:100%;max-width:480px;max-height:90vh;overflow-y:auto;box-shadow:var(--shadow-lg);animation:modalSlideIn var(--transition-base)}@keyframes modalSlideIn{0%{opacity:0;transform:translateY(-20px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-5);border-bottom:1px solid var(--color-glass-border)}.modal-header h2{font-size:var(--font-size-xl);font-weight:600}.modal-body{padding:var(--space-5)}.modal-footer{display:flex;justify-content:flex-end;gap:var(--space-3);padding:var(--space-5);border-top:1px solid var(--color-glass-border)}.form-group{margin-bottom:var(--space-5)}.form-group:last-child{margin-bottom:0}.form-group label{display:block;font-size:var(--font-size-sm);font-weight:500;color:var(--color-text-primary);margin-bottom:var(--space-2)}.text-input{width:100%;padding:var(--space-3);font-family:inherit;font-size:var(--font-size-sm);color:var(--color-text-primary);background:var(--color-bg-tertiary);border:1px solid var(--color-glass-border);border-radius:var(--radius-md);transition:all var(--transition-fast)}.text-input:hover{border-color:var(--color-text-muted)}.text-input:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #8b5cf633}.form-hint{font-size:var(--font-size-xs);color:var(--color-text-muted);margin-top:var(--space-2)}.loading-spinner{width:24px;height:24px;border:3px solid var(--color-bg-tertiary);border-top-color:var(--color-primary);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.hidden{display:none!important}@media(max-width:1024px){.annotation-grid{grid-template-columns:1fr;grid-template-rows:auto}.line-item-panel{grid-row:auto}}@media(max-width:768px){.main-content{padding:var(--space-4)}.header{padding:var(--space-3) var(--space-4)}.navigation-controls{flex-wrap:wrap;gap:var(--space-3)}.nav-center{order:3;width:100%;justify-content:center}}