@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap";:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media(prefers-color-scheme:light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}*{margin:0;padding:0;box-sizing:border-box}:root{--primary: #6366f1;--primary-dark: #4f46e5;--secondary: #a855f7;--accent: #ec4899;--bg-dark: #0f172a;--bg-medium: #1e293b;--bg-light: #334155;--text-primary: #f1f5f9;--text-secondary: #cbd5e1;--text-muted: #94a3b8;--success: #10b981;--error: #ef4444;--border: rgba(148, 163, 184, .1);--shadow: rgba(0, 0, 0, .3)}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:linear-gradient(135deg,var(--bg-dark) 0%,#1a1f35 100%);color:var(--text-primary);min-height:100vh;line-height:1.6}.app{min-height:100vh;display:flex;flex-direction:column}.app-header{background:linear-gradient(135deg,#6366f11a,#a855f71a);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--border);padding:2rem 2rem 1.5rem;position:sticky;top:0;z-index:100}.header-content{max-width:1400px;margin:0 auto}.app-title{font-size:2.5rem;font-weight:800;background:linear-gradient(135deg,var(--primary) 0%,var(--secondary) 50%,var(--accent) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;display:flex;align-items:center;gap:1rem;margin-bottom:.5rem}.title-icon{font-size:2.5rem;filter:drop-shadow(0 0 10px rgba(99,102,241,.5))}.title-badge{font-size:.75rem;font-weight:600;background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;padding:.25rem .75rem;border-radius:1rem;text-transform:uppercase;letter-spacing:.05em}.app-subtitle{color:var(--text-secondary);font-size:1.1rem;font-weight:400}.tab-nav{display:flex;gap:.5rem;padding:1rem 2rem;background:#1e293b80;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--border);max-width:1400px;margin:0 auto;width:100%}.tab-btn{flex:1;padding:1rem 1.5rem;background:transparent;color:var(--text-secondary);border:1px solid var(--border);border-radius:.75rem;font-size:1rem;font-weight:500;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;justify-content:center;gap:.5rem;font-family:Inter,sans-serif}.tab-btn:hover{background:#6366f11a;border-color:var(--primary);color:var(--text-primary);transform:translateY(-2px)}.tab-btn.active{background:linear-gradient(135deg,var(--primary),var(--secondary));border-color:transparent;color:#fff;box-shadow:0 4px 20px #6366f166}.tab-icon{font-size:1.25rem}.app-main{flex:1;padding:2rem}.content-wrapper{max-width:1400px;margin:0 auto;animation:fadeIn .5s ease}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.upload-container{background:#1e293b80;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--border);border-radius:1.5rem;padding:3rem;max-width:700px;margin:0 auto}.upload-container h2{font-size:2rem;margin-bottom:2rem;color:var(--text-primary)}.upload-form{display:flex;flex-direction:column;gap:1.5rem}.file-input-wrapper{position:relative}.file-input-wrapper input[type=file]{display:none}.file-label{display:block;padding:1.5rem;background:#33415580;border:2px dashed var(--border);border-radius:1rem;text-align:center;cursor:pointer;transition:all .3s ease;color:var(--text-secondary);font-weight:500}.file-label:hover{border-color:var(--primary);background:#6366f11a;color:var(--text-primary)}.upload-btn{padding:1.25rem 2rem;background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;border:none;border-radius:.75rem;font-size:1.1rem;font-weight:600;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;justify-content:center;gap:.5rem;box-shadow:0 4px 20px #6366f14d;font-family:Inter,sans-serif}.upload-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 30px #6366f180}.upload-btn:disabled{opacity:.5;cursor:not-allowed}.spinner{width:1rem;height:1rem;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.error-message{padding:1rem 1.5rem;background:#ef44441a;border:1px solid var(--error);border-radius:.75rem;color:#fca5a5;margin-top:1rem}.upload-hint{margin-top:1.5rem;padding:1rem;background:#6366f10d;border-left:3px solid var(--primary);border-radius:.5rem;color:var(--text-secondary);font-size:.9rem}.dashboard{animation:fadeIn .5s ease}.dashboard-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:2rem;flex-wrap:wrap;gap:1rem}.dashboard h2{font-size:2rem;margin-bottom:.5rem;color:var(--text-primary)}.dataset-info{color:var(--text-secondary);font-size:1rem}.pdf-btn{padding:.875rem 1.5rem;background:linear-gradient(135deg,var(--secondary),var(--accent));color:#fff;border:none;border-radius:.75rem;font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 15px #a855f74d;font-family:Inter,sans-serif}.pdf-btn:hover{transform:translateY(-2px);box-shadow:0 6px 25px #a855f780}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.5rem;margin-bottom:2rem}.stat-card{background:#1e293b80;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--border);border-radius:1.25rem;padding:1.5rem;display:flex;align-items:center;gap:1.25rem;transition:all .3s ease}.stat-card:hover{transform:translateY(-4px);border-color:var(--primary);box-shadow:0 8px 30px var(--shadow)}.stat-icon{font-size:2.5rem;filter:drop-shadow(0 0 10px rgba(99,102,241,.5))}.stat-content{flex:1}.stat-label{color:var(--text-secondary);font-size:.875rem;font-weight:500;text-transform:uppercase;letter-spacing:.05em;margin-bottom:.25rem}.stat-value{font-size:2rem;font-weight:700;background:linear-gradient(135deg,var(--primary),var(--secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.charts-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(450px,1fr));gap:2rem}.chart-container{background:#1e293b80;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--border);border-radius:1.25rem;padding:1.5rem}.chart-container h3{color:var(--text-primary);margin-bottom:1.5rem;font-size:1.25rem;font-weight:600}.chart-wrapper{height:350px}.no-data{text-align:center;padding:4rem 2rem;background:#1e293b80;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--border);border-radius:1.5rem}.no-data h2{margin-bottom:1rem;font-size:2rem}.no-data p{color:var(--text-secondary);font-size:1.1rem}.history-container{max-width:900px;margin:0 auto}.history-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem}.history-container h2{font-size:2rem;color:var(--text-primary)}.refresh-btn{padding:.75rem 1.25rem;background:#33415580;color:var(--text-secondary);border:1px solid var(--border);border-radius:.75rem;font-size:.9rem;font-weight:500;cursor:pointer;transition:all .3s ease;font-family:Inter,sans-serif}.refresh-btn:hover{background:#6366f11a;border-color:var(--primary);color:var(--text-primary)}.history-list{display:flex;flex-direction:column;gap:1rem;margin-bottom:1.5rem}.history-item{background:#1e293b80;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--border);border-radius:1rem;padding:1.5rem;display:flex;align-items:center;gap:1.5rem;cursor:pointer;transition:all .3s ease}.history-item:hover{transform:translate(8px);border-color:var(--primary);background:#6366f10d;box-shadow:0 4px 20px var(--shadow)}.history-number{width:3rem;height:3rem;background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;border-radius:.75rem;display:flex;align-items:center;justify-content:center;font-size:1.25rem;font-weight:700;flex-shrink:0}.history-details{flex:1}.history-filename{font-size:1.1rem;font-weight:600;color:var(--text-primary);margin-bottom:.25rem}.history-meta{color:var(--text-muted);font-size:.875rem;display:flex;gap:.5rem}.history-arrow{font-size:1.5rem;color:var(--text-muted);transition:all .3s ease}.history-item:hover .history-arrow{color:var(--primary);transform:translate(4px)}.history-note{padding:1rem;background:#6366f10d;border-left:3px solid var(--primary);border-radius:.5rem;color:var(--text-secondary);font-size:.9rem}.loading{text-align:center;padding:3rem;color:var(--text-secondary);font-size:1.1rem}.app-footer{background:#0f172acc;border-top:1px solid var(--border);padding:1.5rem 2rem;text-align:center;color:var(--text-muted);font-size:.9rem;margin-top:auto}@media(max-width:768px){.app-title{font-size:1.75rem}.tab-nav{flex-direction:column}.tab-btn{width:100%}.charts-grid,.stats-grid{grid-template-columns:1fr}.dashboard-header{flex-direction:column}.upload-container{padding:2rem 1.5rem}}