:root{--bg-primary:#0a0a0f;--bg-secondary:#12121a;--bg-tertiary:#1a1a25;--bg-card:#16161f;--bg-elevated:#1e1e2a;--accent-primary:#6366f1;--accent-primary-hover:#818cf8;--accent-success:#22c55e;--accent-warning:#f59e0b;--accent-error:#ef4444;--accent-info:#3b82f6;--text-primary:#f8fafc;--text-secondary:#94a3b8;--text-muted:#64748b;--border-subtle:#2e2e3a;--border-default:#3f3f4f;--gradient-primary:linear-gradient(135deg,#6366f1,#8b5cf6);--gradient-success:linear-gradient(135deg,#22c55e,#10b981);--gradient-card:linear-gradient(180deg,rgba(99,102,241,.1),transparent);--shadow-sm:0 1px 2px rgba(0,0,0,.3);--shadow-md:0 4px 6px rgba(0,0,0,.4);--shadow-lg:0 10px 25px rgba(0,0,0,.5);--shadow-glow:0 0 20px rgba(99,102,241,.3);--font-sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;--font-mono:"JetBrains Mono","Fira Code",monospace;--space-xs:0.25rem;--space-sm:0.5rem;--space-md:1rem;--space-lg:1.5rem;--space-xl:2rem;--space-2xl:3rem;--radius-sm:0.375rem;--radius-md:0.5rem;--radius-lg:0.75rem;--radius-xl:1rem;--radius-full:9999px;--transition-fast:150ms ease;--transition-normal:250ms ease;--transition-slow:350ms ease}*,:after,:before{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth}body{font-family:var(--font-sans);background-color:var(--bg-primary);line-height:1.6;min-height:100vh;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body,h1,h2,h3,h4,h5,h6{color:var(--text-primary)}h1,h2,h3,h4,h5,h6{font-weight:600;line-height:1.3}h1{font-size:2.5rem}h2{font-size:2rem}h3{font-size:1.5rem}h4{font-size:1.25rem}p{color:var(--text-secondary)}a{color:var(--accent-primary);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--accent-primary-hover)}.container{max-width:1400px;margin:0 auto;padding:0 var(--space-lg)}.card{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);padding:var(--space-lg);transition:all var(--transition-normal)}.card:hover{border-color:var(--border-default);box-shadow:var(--shadow-md)}.card-elevated{background:var(--bg-elevated);box-shadow:var(--shadow-lg)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-sm);padding:var(--space-sm) var(--space-lg);font-size:.9375rem;font-weight:500;border-radius:var(--radius-md);border:none;cursor:pointer;transition:all var(--transition-fast)}.btn-primary{background:var(--gradient-primary);color:#fff}.btn-primary:hover{box-shadow:var(--shadow-glow);transform:translateY(-1px)}.btn-primary:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}.btn-secondary{background:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border-default)}.btn-secondary:hover{background:var(--bg-elevated)}.input{width:100%;padding:var(--space-md);font-size:1rem;color:var(--text-primary);background:var(--bg-tertiary);border:1px solid var(--border-subtle);border-radius:var(--radius-md);transition:all var(--transition-fast)}.input:focus{outline:none;border-color:var(--accent-primary);box-shadow:0 0 0 3px rgba(99,102,241,.2)}.input::placeholder{color:var(--text-muted)}.status-success{color:var(--accent-success)}.status-error{color:var(--accent-error)}.status-warning{color:var(--accent-warning)}.status-info{color:var(--accent-info)}.spinner{display:inline-block;width:1.5rem;height:1.5rem;border:2px solid var(--border-subtle);border-top-color:var(--accent-primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(1turn)}}.chart-container{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);padding:var(--space-lg);margin-bottom:var(--space-lg)}.chart-title{font-size:1rem;font-weight:600;color:var(--text-primary);margin-bottom:var(--space-md)}.dashboard-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(400px,1fr));grid-gap:var(--space-lg);gap:var(--space-lg)}.upload-zone{border:2px dashed var(--border-default);border-radius:var(--radius-lg);padding:var(--space-2xl);text-align:center;cursor:pointer;transition:all var(--transition-normal)}.upload-zone:hover{border-color:var(--accent-primary);background:rgba(99,102,241,.05)}.upload-zone.dragging{border-color:var(--accent-primary);background:rgba(99,102,241,.1);box-shadow:var(--shadow-glow)}.upload-zone.has-file{border-color:var(--accent-success);background:rgba(34,197,94,.05)}.error-card{background:rgba(239,68,68,.1);border:1px solid rgba(239,68,68,.3);border-radius:var(--radius-lg);padding:var(--space-lg)}.error-code{font-family:var(--font-mono);font-size:.875rem;color:var(--accent-error);margin-bottom:var(--space-sm)}.confidence-badge{display:inline-flex;align-items:center;gap:var(--space-xs);padding:var(--space-xs) var(--space-sm);font-size:.75rem;font-weight:600;border-radius:var(--radius-full);background:var(--bg-tertiary)}.confidence-high{background:rgba(34,197,94,.2);color:var(--accent-success)}.confidence-medium{background:rgba(245,158,11,.2);color:var(--accent-warning)}.confidence-low{background:rgba(239,68,68,.2);color:var(--accent-error)}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.fade-in{animation:fadeIn .3s ease-out}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.pulse{animation:pulse 1.5s ease-in-out infinite}