:root{--color-primary: #6366f1;--color-primary-dark: #4f46e5;--color-primary-light: #818cf8;--color-primary-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);--color-secondary: #e5e7eb;--color-secondary-dark: #d1d5db;--color-accent: #8b5cf6;--color-success: #10b981;--color-success-bg: #d1fae5;--color-warning: #f59e0b;--color-warning-bg: #fef3c7;--color-danger: #ef4444;--color-danger-dark: #dc2626;--color-danger-bg: #fee2e2;--color-error: #ef4444;--color-text: #0f172a;--color-text-secondary: #475569;--color-text-muted: #94a3b8;--color-text-light: #cbd5e1;--color-text-inverse: #ffffff;--color-bg: #f8fafc;--color-bg-secondary: #f1f5f9;--color-surface: #ffffff;--color-surface-elevated: #ffffff;--color-border: #e2e8f0;--color-border-light: #f1f5f9;--space-xs: .25rem;--space-sm: .5rem;--space-md: 1rem;--space-lg: 1.5rem;--space-xl: 2rem;--space-2xl: 3rem;--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--radius-2xl: 1.5rem;--radius-full: 9999px;--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", sans-serif;--font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -1px rgb(0 0 0 / .06);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -2px rgb(0 0 0 / .05);--shadow-xl: 0 20px 25px -5px rgb(0 0 0 / .1), 0 10px 10px -5px rgb(0 0 0 / .04);--shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / .25);--transition-fast: .15s cubic-bezier(.4, 0, .2, 1);--transition-base: .2s cubic-bezier(.4, 0, .2, 1);--transition-slow: .3s cubic-bezier(.4, 0, .2, 1)}@media(prefers-color-scheme:dark){:root{--color-text: #f1f5f9;--color-text-secondary: #94a3b8;--color-text-muted: #64748b;--color-text-light: #475569;--color-bg: #0f172a;--color-bg-secondary: #1e293b;--color-surface: #1e293b;--color-surface-elevated: #334155;--color-border: #334155;--color-border-light: #1e293b;--color-secondary: #334155;--color-secondary-dark: #475569;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .3);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .4), 0 2px 4px -1px rgb(0 0 0 / .3);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .4), 0 4px 6px -2px rgb(0 0 0 / .3);--shadow-xl: 0 20px 25px -5px rgb(0 0 0 / .5), 0 10px 10px -5px rgb(0 0 0 / .3)}}*{box-sizing:border-box}html{font-family:var(--font-sans);line-height:1.5;font-weight:400;color-scheme:light dark;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{margin:0;min-width:320px;min-height:100vh;background:linear-gradient(to bottom,var(--color-bg) 0%,var(--color-bg-secondary) 100%);color:var(--color-text);transition:background var(--transition-slow)}#root{width:100%;min-height:100vh}h1,h2,h3,h4,h5,h6{margin:0;font-weight:600;line-height:1.25}h1{font-size:2rem}h2{font-size:1.5rem}h3{font-size:1.25rem}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}.app{min-height:100vh;display:flex;flex-direction:column}.app-header{padding:var(--space-xl) var(--space-xl) var(--space-lg);background:var(--color-primary-gradient);color:var(--color-text-inverse);box-shadow:var(--shadow-lg);position:relative;overflow:hidden}.app-header__content{max-width:1920px;margin:0 auto;width:100%;position:relative;z-index:1}.app-header__title{text-align:center;margin-bottom:var(--space-lg)}.app-header__upload{max-width:600px;margin:0 auto}.app-header__actions{display:flex;justify-content:center;gap:var(--space-md);margin-top:var(--space-sm);flex-wrap:wrap}.app-header:before{content:"";position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:radial-gradient(circle,rgba(255,255,255,.1) 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var(--space-md);gap:var(--space-lg)}.results-section{padding:var(--space-lg)}}.results-section__hint{color:var(--color-text-muted);font-style:italic;text-align:center;padding:var(--space-2xl);background:var(--color-bg);border-radius:var(--radius-lg);border:2px dashed var(--color-border)}.loading-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--space-2xl);text-align:center;background:var(--color-bg);border-radius:var(--radius-lg)}.loading-state__spinner{width:64px;height:64px;border:5px solid var(--color-border);border-top-color:var(--color-primary);border-right-color:var(--color-accent);border-radius:50%;animation:spin 1s cubic-bezier(.68,-.55,.265,1.55) infinite;margin-bottom:var(--space-lg);box-shadow:0 4px 12px #6366f133}.loading-state p{color:var(--color-text);font-weight:600;font-size:1.1rem;margin-top:var(--space-md)}.reasoning-log{margin-top:var(--space-lg);width:100%;max-width:600px;text-align:left}.reasoning-log h3{font-size:.875rem;color:var(--color-text-muted);margin:0 0 var(--space-sm);text-transform:uppercase;letter-spacing:.05em}.reasoning-log__content{background-color:var(--color-bg);border-radius:var(--radius-md);padding:var(--space-md);max-height:200px;overflow-y:auto;font-family:Monaco,Consolas,monospace;font-size:.8rem;line-height:1.5}.reasoning-log__content p{margin:0 0 var(--space-xs);color:var(--color-text)}.error-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--space-2xl);text-align:center;background:linear-gradient(135deg,#ef44440d,#ef444405);border-radius:var(--radius-xl);border:2px solid var(--color-danger-bg)}.error-state__icon{font-size:4rem;margin-bottom:var(--space-lg);animation:shake .5s ease-in-out}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-10px)}75%{transform:translate(10px)}}.error-state__message{color:var(--color-error);font-weight:600;font-size:1.1rem;margin:0 0 var(--space-xl);max-width:500px;line-height:1.6}.summary-banner{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-lg);padding:var(--space-xl);background:var(--color-primary-gradient);border-radius:var(--radius-xl);margin-bottom:var(--space-xl);color:var(--color-text-inverse);box-shadow:var(--shadow-xl);position:relative;overflow:hidden;animation:slideInUp .5s ease-out}@keyframes slideInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.summary-banner:before{content:"";position:absolute;top:-50%;right:-50%;width:100%;height:200%;background:radial-gradient(circle,rgba(255,255,255,.15) 0%,transparent 70%);animation:float 8s ease-in-out infinite}@keyframes float{0%,to{transform:translate(0)}50%{transform:translate(-20px,-20px)}}.summary-banner__item{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;position:relative;z-index:1;padding:var(--space-md);border-radius:var(--radius-lg);transition:all var(--transition-base)}.summary-banner__item:hover{background:#ffffff1a;transform:translateY(-2px)}.summary-banner__value{font-size:2.5rem;font-weight:800;line-height:1;margin-bottom:var(--space-xs);text-shadow:0 2px 4px rgba(0,0,0,.1)}.summary-banner__label{font-size:.75rem;opacity:.95;text-transform:uppercase;letter-spacing:.1em;font-weight:600}.summary-banner__item--flagged .summary-banner__value{color:#fecaca}.summary-banner__item--valid .summary-banner__value{color:#86efac}@media(max-width:600px){.summary-banner{grid-template-columns:repeat(2,1fr)}}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#000000bf;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;z-index:1000;padding:var(--space-xl);animation:fadeIn .3s cubic-bezier(.4,0,.2,1)}.modal-content{max-width:900px;max-height:90vh;overflow-y:auto;border-radius:var(--radius-2xl);box-shadow:var(--shadow-2xl);animation:slideIn .4s cubic-bezier(.34,1.56,.64,1);background:var(--color-surface);border:1px solid var(--color-border)}.modal-content::-webkit-scrollbar{width:8px}.modal-content::-webkit-scrollbar-track{background:var(--color-bg);border-radius:var(--radius-full)}.modal-content::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:var(--radius-full);transition:background var(--transition-base)}.modal-content::-webkit-scrollbar-thumb:hover{background:var(--color-text-muted)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideIn{0%{opacity:0;transform:scale(.9) translateY(-30px)}to{opacity:1;transform:scale(1) translateY(0)}}.file-upload{width:100%}.file-upload--disabled{opacity:.6;pointer-events:none}.file-upload__error{background-color:var(--color-error);color:var(--color-text-inverse);padding:var(--space-sm) 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.2s}.reasoning-panel__header:hover{background-color:#64748b1a}.reasoning-panel__header:focus{outline:2px solid var(--color-primary);outline-offset:-2px}.reasoning-panel__icon{font-size:1.25rem}.reasoning-panel__title{font-weight:600;flex:1}.reasoning-panel__status{font-size:.75rem;padding:var(--space-xs) var(--space-sm);border-radius:var(--radius-sm);background-color:var(--color-bg);color:var(--color-text-muted)}.reasoning-panel__status--active{display:flex;align-items:center;gap:var(--space-xs);background-color:#2563eb1a;color:var(--color-primary)}.reasoning-panel__pulse{width:8px;height:8px;border-radius:50%;background-color:var(--color-primary);animation:pulse 1.5s ease-in-out infinite}@keyframes 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var(--color-border)}.session-summary__title{margin:0;font-size:1.25rem;font-weight:600;color:var(--color-text)}.session-summary__time{font-size:.875rem;color:var(--color-text-muted)}.session-summary__stats{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-md);margin-bottom:var(--space-lg)}.session-summary__stat{display:flex;flex-direction:column;align-items:center;padding:var(--space-md);background-color:var(--color-bg);border-radius:var(--radius-md);text-align:center;position:relative}.session-summary__stat-value{font-size:2rem;font-weight:700;line-height:1;margin-bottom:var(--space-xs)}.session-summary__stat-label{font-size:.75rem;text-transform:uppercase;letter-spacing:.05em;color:var(--color-text-muted)}.session-summary__stat-percent{position:absolute;top:var(--space-xs);right:var(--space-xs);font-size:.7rem;padding:2px 6px;border-radius:var(--radius-sm);background-color:#16a34a1a;color:var(--color-success)}.session-summary__stat--total .session-summary__stat-value{color:var(--color-primary)}.session-summary__stat--valid .session-summary__stat-value{color:var(--color-success)}.session-summary__stat--flagged .session-summary__stat-value{color:var(--color-error)}.session-summary__stat--escalated .session-summary__stat-value{color:var(--color-warning)}.session-summary__progress{margin-bottom:var(--space-lg)}.session-summary__progress-bar{display:flex;height:12px;border-radius:var(--radius-full);overflow:hidden;background-color:var(--color-bg)}.session-summary__progress-segment{transition:width .5s 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