: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}}:root{--color-primary: #4f46e5;--color-primary-dark: #4338ca;--color-secondary: #64748b;--color-success: #10b981;--color-danger: #ef4444;--color-warning: #f59e0b;--color-bg: #ffffff;--color-bg-alt: #f8fafc;--color-border: #e2e8f0;--color-text: #1e293b;--color-text-muted: #64748b;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1);--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: .75rem}@media(prefers-color-scheme:dark){:root{--color-bg: #0f172a;--color-bg-alt: #1e293b;--color-border: #334155;--color-text: #f1f5f9;--color-text-muted: #94a3b8}}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Helvetica 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h3{margin-bottom:1rem;font-size:1.25rem}.motivation-message{font-size:1.125rem;line-height:1.7;margin-bottom:1.5rem}.savings-details{display:flex;gap:2rem;flex-wrap:wrap;font-size:.875rem}.savings-details strong{display:block;font-size:1.125rem;margin-top:.25rem}.settings-section{background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:1.5rem;margin-bottom:2rem;box-shadow:var(--shadow-sm)}.setting-group{margin-bottom:1.5rem}.setting-group:last-child{margin-bottom:0}.setting-group label{display:block;font-weight:500;margin-bottom:.5rem;font-size:.875rem}.setting-group small{display:block;color:var(--color-text-muted);font-size:.75rem;margin-top:.5rem}.button-group{display:flex;gap:.5rem;margin-bottom:.5rem}.button-group button{flex:1;padding:.75rem;background:var(--color-bg-alt);border:1px solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text);font-weight:500;cursor:pointer;transition:all .2s}.button-group 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p{margin-bottom:.5rem}.payoff-date{margin-top:1rem;padding:1rem;background:var(--color-bg-alt);border-radius:var(--radius-md);font-weight:600}form{display:flex;flex-direction:column;gap:1rem}.form-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem}.form-group{display:flex;flex-direction:column}.form-group label{font-weight:500;margin-bottom:.5rem;font-size:.875rem}.form-group input{padding:.75rem;border:1px solid var(--color-border);border-radius:var(--radius-md);font-size:1rem;background:var(--color-bg);color:var(--color-text);transition:border-color .2s}.form-group input:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #4f46e51a}.form-group small{display:block;color:var(--color-text-muted);font-size:.75rem;margin-top:.5rem}button{padding:.75rem 1.5rem;font-size:1rem;font-weight:500;border:none;border-radius:var(--radius-md);cursor:pointer;transition:all .2s}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--color-primary-dark)}.btn-secondary{background:var(--color-secondary);color:#fff}.btn-secondary:hover:not(:disabled){background:#475569}.btn-delete{background:transparent;color:var(--color-danger);padding:.5rem;font-size:1.25rem}.btn-delete:hover{background:#ef44441a}button:disabled{opacity:.5;cursor:not-allowed}.error{background:#fee2e2;color:#991b1b;padding:.75rem;border-radius:var(--radius-md);font-size:.875rem}.toast-error{position:fixed;bottom:2rem;right:2rem;background:var(--color-danger);color:#fff;padding:1rem 1.5rem;border-radius:var(--radius-md);box-shadow:var(--shadow-lg);max-width:400px;animation:slideIn .3s ease-out}@keyframes slideIn{0%{transform:translateY(100%);opacity:0}to{transform:translateY(0);opacity:1}}@media(max-width:768px){.container,.app-header{padding:1rem}.unlock-card{padding:1.5rem}.summary-section{grid-template-columns:1fr}.savings-details{flex-direction:column;gap:1rem}.section-header{flex-direction:column;align-items:flex-start;gap:1rem}.section-header button{width:100%}}