:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;color:#ffffffde;font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:#242424;font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;font-weight:400;line-height:1.5}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial}}body{place-items:center;min-width:320px;min-height:100vh;margin:0;display:flex}h1{font-size:3.2em;line-height:1.1}@media (prefers-color-scheme:light){:root{color:#213547;background-color:#fff}}.App{text-align:center;max-width:800px;margin:0 auto;padding:2rem}.subtitle{color:#888;margin-top:-1rem;margin-bottom:2rem}.container{flex-direction:column;gap:2rem;display:flex}.input-section{background-color:#ffffff0d;border-radius:12px;flex-direction:column;gap:1.5rem;padding:1.5rem;display:flex;box-shadow:0 4px 20px #0003}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes slideIn{0%{opacity:0;transform:translate(-10px)}to{opacity:1;transform:translate(0)}}.fade-in{animation:.5s ease-out forwards fadeIn}.bill-item{background-color:#ffffff1a;border-radius:4px;justify-content:space-between;align-items:center;padding:.8rem 1rem;animation:.3s ease-out forwards slideIn;display:flex}.bill-input-form .input-group{justify-content:center;gap:.5rem;display:flex}.bill-input-form input{color:#fff;background-color:#ffffff0d;border:1px solid #fff3;border-radius:8px;flex:1;max-width:300px;padding:.8rem 1rem;font-size:1rem;transition:border-color .2s}.bill-input-form input:focus{border-color:#646cff;outline:none}.bill-input-form button{color:#fff;cursor:pointer;background-color:#646cff;border:none;border-radius:8px;padding:.8rem 1.5rem;font-weight:600;transition:all .2s}.bill-input-form button:hover{background-color:#535bf2;transform:translateY(-1px)}.error-message{color:#ff4d4f;margin-top:.5rem;font-size:.9rem}.bill-list-container{text-align:left}.bill-list{flex-direction:column;gap:.5rem;margin:1rem 0;padding:0;list-style:none;display:flex}.remove-btn{color:#ff4d4f;cursor:pointer;background-color:#0000;border:1px solid #ff4d4f80;border-radius:4px;padding:.4rem .8rem;transition:all .2s}.remove-btn:hover{color:#fff;background-color:#ff4d4f}.bill-list-footer{text-align:right;border-top:1px solid #ffffff1a;margin-top:1rem;padding-top:1rem;font-size:1.1rem}.empty-list{text-align:center;color:#666;border:2px dashed #ffffff1a;border-radius:8px;padding:2rem;font-style:italic}.calculate-button{color:#fff;cursor:pointer;background-color:#4caf50;border:none;border-radius:12px;margin-top:1rem;padding:1.2rem 2rem;font-size:1.1rem;font-weight:700;transition:all .2s;box-shadow:0 4px 15px #4caf504d}.calculate-button:hover:not(:disabled){background-color:#45a049;transform:translateY(-2px);box-shadow:0 6px 20px #4caf5066}.calculate-button:active:not(:disabled){transform:translateY(0)}.calculate-button.loading{cursor:not-allowed;box-shadow:none;background-color:#888;transform:none}.results-section{text-align:left;background-color:#ffffff0d;border-radius:12px;margin-top:1rem;padding:1.5rem;scroll-margin-top:2rem}.summary-stat{color:#e8f5e9;background-color:#4caf501a;border-left:5px solid #4caf50;border-radius:8px;margin-bottom:2rem;padding:1.2rem;font-size:1.25rem}.allocations-grid{grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1.5rem;margin-bottom:2rem;display:grid}.car-card{background-color:#ffffff14;border:1px solid #ffffff1a;border-radius:16px;padding:1.5rem;transition:transform .2s;box-shadow:0 8px 16px #0003}.car-card:hover{border-color:#646cff66;transform:translateY(-5px)}.car-card-header{border-bottom:1px solid #ffffff1a;justify-content:space-between;align-items:center;margin-bottom:1.5rem;padding-bottom:1rem;display:flex}.car-card-header h3{color:#646cff;margin:0;font-size:1.25rem}.tier-badge{color:#fff;background-color:#646cff;border-radius:20px;padding:.4rem .8rem;font-size:.85rem;font-weight:700}.tier-badge.no-tier{background-color:#444}.car-card-body .total-amount{margin-bottom:1.5rem;font-size:1.1rem}.bill-list-mini h4{color:#888;text-transform:uppercase;letter-spacing:.1em;margin:0 0 .8rem;font-size:.85rem}.bill-list-mini ul{margin:0;padding:0;list-style:none}.bill-list-mini li{border-bottom:1px solid #ffffff0d;justify-content:space-between;padding:.5rem 0;font-size:1rem;display:flex}.bill-list-mini li:after{content:"THB";color:#666;font-size:.8rem}.unused-bills{background-color:#ff98000d;border:1px dashed #ff98004d;border-radius:12px;padding:1.5rem}.unused-bills h3{color:#ff9800;margin:0 0 .5rem}.unused-bills p{color:#aaa;margin:0 0 1rem;font-size:.9rem}.unused-bills ul{flex-wrap:wrap;gap:.8rem;margin:0 0 1.5rem;padding:0;list-style:none;display:flex}.unused-bills li{color:#ffb74d;background-color:#ff98001a;border-radius:20px;padding:.4rem .8rem;font-size:.9rem}.unused-total{text-align:right;color:#888;font-size:1rem}@media (width<=600px){.App{padding:1rem}.bill-input-form .input-group{flex-direction:column}.bill-input-form input{max-width:none}.calculate-button{width:100%}.allocations-grid{grid-template-columns:1fr}.subtitle{margin-bottom:1.5rem;font-size:.9rem}}