:root{--color-bg: #0f0f0f;--color-surface: #1a1a1a;--color-surface-hover: #232323;--color-border: #2a2a2a;--color-border-light: #3a3a3a;--color-text: #ffffff;--color-text-muted: #a0a0a0;--color-text-dim: #707070;--color-primary: #6366f1;--color-primary-hover: #4f46e5;--color-primary-light: rgba(99, 102, 241, .1);--color-success: #10b981;--color-success-light: rgba(16, 185, 129, .1);--color-danger: #ef4444;--color-danger-light: rgba(239, 68, 68, .1);--color-accent: #06b6d4;--border-radius: 12px;--border-radius-sm: 8px;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .3);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .4);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .5);--transition: all .2s cubic-bezier(.4, 0, .2, 1)}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--color-bg);color:var(--color-text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;line-height:1.6}#root{max-width:1400px;margin:0 auto;padding:1.5rem}.app-root{display:flex;flex-direction:column;gap:2rem;min-height:100vh}.app-header{display:flex;align-items:center;justify-content:center;gap:1rem;padding:2rem 0 1rem}.logo-icon{color:var(--color-primary);animation:float 3s ease-in-out infinite}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-5px)}}.app-header h1{font-size:2rem;font-weight:700;background:linear-gradient(135deg,var(--color-text) 0%,var(--color-text-muted) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:-.02em}.panel{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--border-radius);padding:1.5rem;box-shadow:var(--shadow-md);transition:var(--transition)}.controls{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1.5rem}.add-person{display:flex;gap:.75rem;align-items:center;flex:1;min-width:280px}.add-person input{flex:1;padding:.75rem 1rem;border-radius:var(--border-radius-sm);border:1px solid var(--color-border);background:var(--color-bg);color:var(--color-text);font-size:.95rem;transition:var(--transition);outline:none}.add-person input:focus{border-color:var(--color-primary);background:var(--color-surface);box-shadow:0 0 0 3px var(--color-primary-light)}.add-person input::placeholder{color:var(--color-text-dim)}.btn-primary{display:flex;align-items:center;gap:.5rem;padding:.75rem 1.5rem;border-radius:var(--border-radius-sm);border:none;background:var(--color-primary);color:#fff;font-size:.95rem;font-weight:500;cursor:pointer;transition:var(--transition);white-space:nowrap}.btn-primary:hover{background:var(--color-primary-hover);transform:translateY(-1px);box-shadow:var(--shadow-md)}.btn-primary:active{transform:translateY(0)}.summary{display:flex;gap:2rem;align-items:center;flex-wrap:wrap}.currency-select{padding:.5rem 1rem;border-radius:var(--border-radius-sm);border:1px solid var(--color-border);background:var(--color-surface);color:var(--color-text);font-size:.95rem;font-weight:500;cursor:pointer;transition:var(--transition);outline:none}.currency-select:hover{border-color:var(--color-primary);background:var(--color-surface-hover)}.currency-select:focus{border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-primary-light)}.stat{display:flex;align-items:center;gap:.5rem;padding:.5rem 1rem;background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--border-radius-sm);font-weight:600;font-size:1rem}.stat svg{color:var(--color-primary)}.people-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.5rem;margin-top:1.5rem}.person-column{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--border-radius);overflow:hidden;transition:var(--transition);display:flex;flex-direction:column;height:fit-content}.person-column:hover{border-color:var(--color-border-light);box-shadow:var(--shadow-lg);transform:translateY(-2px)}.person-header{display:flex;align-items:center;justify-content:space-between;padding:1.25rem;background:linear-gradient(135deg,var(--color-surface-hover) 0%,var(--color-surface) 100%);border-bottom:1px solid var(--color-border);cursor:pointer;transition:var(--transition);gap:.75rem;min-height:64px}.person-header:hover{background:linear-gradient(135deg,var(--color-border) 0%,var(--color-surface-hover) 100%)}.person-header h2,.person-header h3{font-size:1.25rem;font-weight:600;color:var(--color-text);margin:0;flex:1;letter-spacing:-.01em;cursor:pointer;padding:.3rem .5rem;border-radius:var(--border-radius-sm);transition:var(--transition)}.person-header h3:hover{background:var(--color-bg)}.person-header input,.name-edit{flex:1;padding:.5rem .75rem;border-radius:var(--border-radius-sm);border:1px solid var(--color-primary);background:var(--color-bg);color:var(--color-text);font-size:1.125rem;font-weight:600;outline:none;box-shadow:0 0 0 3px var(--color-primary-light)}.icon-btn,button.icon{display:flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:var(--border-radius-sm);border:1px solid var(--color-border);background:var(--color-bg);color:var(--color-text-muted);cursor:pointer;transition:var(--transition);flex-shrink:0;padding:0;line-height:1}.icon-btn:hover,button.icon:hover{background:var(--color-danger-light);border-color:var(--color-danger);color:var(--color-danger);transform:scale(1.05)}button.icon.save{background:var(--color-success-light);border-color:var(--color-success);color:var(--color-success)}button.icon.save:hover:not(:disabled){background:var(--color-success);color:#fff;border-color:var(--color-success)}button.icon.save:disabled{opacity:.3;cursor:not-allowed}.person-body{padding:1.25rem;display:flex;flex-direction:column;gap:1rem}.inline-add-item{display:flex;gap:.5rem;align-items:flex-start;padding:.75rem;background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--border-radius-sm);transition:var(--transition)}.inline-add-item:focus-within{border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-primary-light)}.inline-add-item input{padding:.5rem .75rem;border-radius:var(--border-radius-sm);border:1px solid var(--color-border);background:var(--color-surface);color:var(--color-text);font-size:.9rem;transition:var(--transition);outline:none;min-width:0}.inline-add-item input:focus{border-color:var(--color-primary);background:var(--color-surface-hover)}.inline-add-item input::placeholder{color:var(--color-text-dim)}.inline-add-item input[type=text],.inline-add-item input:first-child{flex:2;min-width:120px}.inline-add-item input[type=number]{flex:1;min-width:80px}.inline-add-item button{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:var(--border-radius-sm);border:none;background:var(--color-success);color:#fff;cursor:pointer;transition:var(--transition);flex-shrink:0}.inline-add-item button:hover{background:#059669;transform:scale(1.05);box-shadow:var(--shadow-md)}.inline-add-item 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.5rem;border-radius:var(--border-radius-sm);border:none;background:transparent;color:var(--color-text-muted);cursor:pointer;transition:var(--transition);flex-shrink:0;font-size:.85rem}.btn-remove:hover,button.small:hover{background:var(--color-danger-light);color:var(--color-danger);transform:scale(1.1)}.person-total{margin-top:.5rem;padding-top:.875rem;border-top:1px solid var(--color-border);font-weight:600;color:var(--color-text);display:flex;justify-content:space-between;align-items:center}.person-total span:last-child{font-size:1.25rem;color:var(--color-primary);font-variant-numeric:tabular-nums}.receipt{background:linear-gradient(135deg,#fafafa,#fff);color:#1a1a1a;border:2px solid var(--color-border);border-radius:var(--border-radius);padding:2rem;box-shadow:var(--shadow-lg);transition:var(--transition)}.receipt-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem;padding-bottom:1rem;border-bottom:2px dashed #d0d0d0}.receipt-header h2{margin:0;font-size:1.75rem;color:#1a1a1a;font-weight:700;display:flex;align-items:center;gap:.75rem}.receipt-actions{display:flex;gap:.5rem}.toggle-group{display:flex;gap:0;background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--border-radius-sm);padding:.25rem;margin-right:.5rem}.toggle-btn{display:flex;align-items:center;gap:.5rem;padding:.5rem 1rem;border-radius:calc(var(--border-radius-sm) - 2px);border:none;background:transparent;color:var(--color-text-muted);font-size:.9rem;font-weight:500;cursor:pointer;transition:var(--transition);white-space:nowrap}.toggle-btn:hover{color:var(--color-text)}.toggle-btn.active{background:var(--color-primary);color:#fff}.print-btn,.copy-btn,button.print{display:flex;align-items:center;gap:.5rem;padding:.75rem 1.25rem;border-radius:var(--border-radius-sm);border:1px solid 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#e0e0e0;border-radius:var(--border-radius-sm);transition:var(--transition)}.transaction-item:hover{background:#efefef;border-color:#d0d0d0}.transaction-from,.transaction-to{font-weight:600;color:#1a1a1a}.transaction-arrow{color:#666;margin:0 .5rem;font-weight:400}.transaction-amount,.amount{font-weight:700;color:var(--color-success);font-size:1.125rem;margin-left:auto;padding-left:1rem;font-variant-numeric:tabular-nums}@media print{body{background:#fff}#root{padding:0}.controls,.people-grid,.print-btn,.copy-btn,button.print{display:none!important}.receipt{border:2px solid #000;box-shadow:none;page-break-inside:avoid;background:#fff}.receipt-header{border-bottom:2px solid #000}.transaction-item{border:1px solid #000;background:#fff;page-break-inside:avoid}}@media (max-width: 768px){#root{padding:1rem}.app-header h1{font-size:1.5rem}.people-grid{grid-template-columns:1fr;gap:1rem}.controls{flex-direction:column;align-items:stretch}.add-person{min-width:100%}.summary{justify-content:space-between;gap:1rem}.stat{font-size:.9rem;padding:.4rem .75rem}.receipt{padding:1.5rem}.receipt-header{flex-direction:column;align-items:flex-start;gap:1rem}.receipt-actions{flex-wrap:wrap;width:100%}.toggle-group{order:-1;width:100%;margin-right:0;margin-bottom:.5rem}.toggle-btn{flex:1;justify-content:center}}@media (max-width: 480px){.inline-add-item{flex-wrap:wrap}.inline-add-item input[type=text]{width:100%;flex-basis:100%}.inline-add-item input[type=number]{flex:1}}: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}}