:root{font-family:Inter,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}}:root{--primary-color: #2563eb;--primary-hover: #1d4ed8;--bg-color: #f8fafc;--card-bg: #ffffff;--text-main: #0f172a;--text-muted: #64748b;--border-color: #e2e8f0;--success-color: #10b981;--font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace}body.dark-mode{--primary-color: #3b82f6;--primary-hover: #60a5fa;--bg-color: #0f172a;--card-bg: #1e293b;--text-main: #f8fafc;--text-muted: #94a3b8;--border-color: #334155}body{background-color:var(--bg-color);color:var(--text-main);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;margin:0;padding:0;transition:background-color .3s ease,color .3s ease}.app-container{max-width:1200px;margin:0 auto;padding:2rem}header{margin-bottom:2rem}.header-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:.5rem}header h1{font-size:2.5rem;color:var(--primary-color);margin:0}header p{color:var(--text-muted);font-size:1.1rem;margin:0}.theme-toggle{background:var(--card-bg);border:1px solid var(--border-color);color:var(--text-main);padding:.5rem 1rem;border-radius:20px;cursor:pointer;font-weight:600;transition:all .2s ease}.theme-toggle:hover{background:var(--border-color)}.controls-panel{background-color:var(--card-bg);border-radius:12px;box-shadow:0 4px 6px -1px #0000001a;padding:2rem;margin-bottom:2rem;border:1px solid var(--border-color);transition:all .3s ease}.manual-estimator{display:flex;flex-direction:column;gap:1.5rem}.estimator-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1.5rem}.control-group{display:flex;flex-direction:column;gap:.5rem}.control-group label{font-weight:600;color:var(--text-main);font-size:.95rem}.control-group input[type=range]{width:100%;cursor:pointer}.control-group select,.location-toggle select{padding:.75rem;border-radius:8px;border:1px solid var(--border-color);background-color:var(--bg-color);color:var(--text-main);font-size:1rem}.divider{display:flex;align-items:center;text-align:center;color:var(--text-muted);margin:1rem 0}.divider:before,.divider:after{content:"";flex:1;border-bottom:1px solid var(--border-color)}.divider span{padding:0 1rem;font-weight:700}.upload-section{text-align:center}.upload-section input[type=file]{display:none}.upload-btn{background-color:var(--primary-color);color:#fff;padding:.75rem 1.5rem;border-radius:8px;font-weight:600;cursor:pointer;display:inline-block;transition:background-color .3s ease;margin-top:1rem}.upload-btn:hover{background-color:var(--primary-hover)}.csv-active-state{display:flex;flex-direction:column;align-items:center;gap:1.5rem;text-align:center}.csv-info h3{margin:0 0 .5rem;color:var(--success-color)}.csv-info p{margin:.25rem 0;color:var(--text-muted)}.location-toggle{display:flex;align-items:center;gap:1rem}.location-toggle label{font-weight:600}.btn-secondary{background-color:transparent;color:var(--text-muted);border:1px solid var(--border-color);padding:.5rem 1rem;border-radius:6px;cursor:pointer;transition:all .2s}.btn-secondary:hover{background-color:var(--border-color);color:var(--text-main)}.results-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:1.5rem}.plan-card{background-color:var(--card-bg);border-radius:12px;padding:1.5rem;box-shadow:0 4px 6px -1px #0000001a;position:relative;display:flex;flex-direction:column;border:1px solid var(--border-color);transition:transform .2s ease,border-color .2s ease}.plan-card:hover{transform:translateY(-2px)}.plan-card.cheapest{border:2px solid var(--success-color)}.cheapest-badge{position:absolute;top:-12px;right:20px;background-color:var(--success-color);color:#fff;padding:4px 12px;border-radius:20px;font-size:.875rem;font-weight:700}.provider-name{font-size:.875rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;margin-bottom:.25rem}.plan-name{font-size:1.25rem;font-weight:700;margin-bottom:1rem}.cost-highlight{font-size:2.5rem;font-weight:800;color:var(--primary-color);margin-bottom:.5rem;font-family:var(--font-mono)}.cost-highlight span{font-size:1rem;color:var(--text-muted);font-weight:400;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}.breakdown{margin-top:1.5rem;flex-grow:1}.breakdown-title{font-size:.875rem;text-transform:uppercase;color:var(--text-muted);border-bottom:1px solid var(--border-color);padding-bottom:.5rem;margin-bottom:1rem}.bands-container{margin-bottom:1rem;background:#00000005;padding:.75rem;border-radius:8px}.dark-mode .bands-container{background:#ffffff05}.breakdown-row{display:flex;justify-content:space-between;margin-bottom:.5rem;font-size:.875rem}.band-row{flex-direction:column;margin-bottom:.75rem}.band-row:last-child{margin-bottom:0}.band-name{font-weight:600;color:var(--text-main);margin-bottom:.2rem}.band-details{display:flex;justify-content:space-between;color:var(--text-muted);font-family:var(--font-mono)}.total-usage{font-weight:600;border-bottom:1px dashed var(--border-color);padding-bottom:.5rem;margin-bottom:.75rem}.breakdown-row>span:last-child{font-family:var(--font-mono)}.highlight-credit{color:var(--success-color);font-weight:600}.breakdown-row.total{font-weight:800;font-size:1.1rem;margin-top:1rem;padding-top:1rem;border-top:1px solid var(--border-color)}.plan-link{margin-top:1.5rem;text-align:center;display:block;padding:.75rem;background-color:var(--bg-color);color:var(--primary-color);text-decoration:none;border-radius:8px;font-weight:600;transition:all .2s;border:1px solid var(--border-color)}.plan-link:hover{background-color:var(--primary-color);color:#fff;border-color:var(--primary-color)}.loading{text-align:center;font-size:1.2rem;color:var(--text-muted);padding:3rem}.error-message{background-color:#fee2e2;color:#991b1b;padding:1rem;border-radius:8px;text-align:center;margin-bottom:2rem}.dark-mode .error-message{background-color:#7f1d1d;color:#fecaca}@media (max-width: 768px){.header-top{flex-direction:column;gap:1rem}header h1{font-size:2rem}}