*,*:before,*:after{box-sizing:border-box}:root{--color-bg: #f8fafc;--color-surface: #ffffff;--color-border: #e2e8f0;--color-text: #1e293b;--color-text-muted: #64748b;--color-primary: #3b82f6;--color-primary-hover: #2563eb;--color-success: #10b981;--color-success-bg: #ecfdf5;--color-danger: #ef4444;--color-danger-hover: #dc2626;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1);--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;font-size:14px;line-height:1.5;color:var(--color-text);background:var(--color-bg)}.app{max-width:1600px;margin:0 auto;padding:24px}header{margin-bottom:32px}header h1{margin:0 0 8px;font-size:28px;font-weight:700;color:var(--color-text)}.subtitle{margin:0;color:var(--color-text-muted);font-size:16px}section{margin-bottom:32px}section h2{margin:0 0 16px;font-size:18px;font-weight:600}.mortgage-inputs{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow-sm)}.inputs-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px;margin-bottom:20px}.input-group{display:flex;flex-direction:column;gap:6px}.input-group label{font-size:13px;font-weight:500;color:var(--color-text-muted)}.input-wrapper{display:flex;align-items:center;background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-sm);overflow:hidden}.input-wrapper:focus-within{border-color:var(--color-primary);box-shadow:0 0 0 3px #3b82f61a}.input-prefix,.input-suffix{padding:8px 12px;color:var(--color-text-muted);background:var(--color-surface);font-size:14px;white-space:nowrap}.input-wrapper input{flex:1;padding:8px 12px;border:none;background:transparent;font-size:14px;min-width:0}.input-wrapper input:focus{outline:none}.input-group>input{padding:8px 12px;border:1px solid var(--color-border);border-radius:var(--radius-sm);font-size:14px;background:var(--color-bg)}.input-group>input:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #3b82f61a}.quick-stats{display:flex;gap:32px;padding-top:16px;border-top:1px solid var(--color-border);font-size:15px;color:var(--color-text-muted)}.quick-stats strong{color:var(--color-text)}.scenarios-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.scenarios-header h2{margin:0}.scenarios-actions{display:flex;gap:12px}.btn-add,.btn-reset{padding:8px 16px;border-radius:var(--radius-sm);font-size:14px;font-weight:500;cursor:pointer;transition:all .15s ease}.btn-add{background:var(--color-primary);color:#fff;border:none}.btn-add:hover{background:var(--color-primary-hover)}.btn-reset{background:var(--color-surface);color:var(--color-text-muted);border:1px solid var(--color-border)}.btn-reset:hover{background:var(--color-bg);color:var(--color-text)}.scenarios-grid{display:flex;gap:24px;overflow-x:auto;padding-bottom:16px}.scenario-column{flex:0 0 420px;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:20px;box-shadow:var(--shadow-sm)}.scenario-header{display:flex;align-items:center;gap:12px;margin-bottom:16px}.scenario-name{flex:1;font-size:16px;font-weight:600;padding:6px 10px;border:1px solid transparent;border-radius:var(--radius-sm);background:transparent}.scenario-name:hover{background:var(--color-bg)}.scenario-name:focus{outline:none;border-color:var(--color-primary);background:var(--color-surface)}.btn-remove{width:28px;height:28px;padding:0;border:none;border-radius:var(--radius-sm);background:transparent;color:var(--color-text-muted);font-size:20px;line-height:1;cursor:pointer;transition:all .15s ease}.btn-remove:hover{background:#fef2f2;color:var(--color-danger)}.summary-card{background:var(--color-bg);border-radius:var(--radius-md);padding:16px;margin-bottom:16px}.summary-card h3{display:none}.summary-stats{display:grid;grid-template-columns:1fr 1fr;gap:12px}.stat{display:flex;flex-direction:column;gap:2px}.stat-label{font-size:12px;color:var(--color-text-muted)}.stat-value{font-size:15px;font-weight:600;color:var(--color-text)}.stat.savings{background:var(--color-success-bg);padding:8px;border-radius:var(--radius-sm);margin:-4px}.stat.savings .stat-value{color:var(--color-success)}.scenario-controls{margin-bottom:16px;padding-bottom:16px;border-bottom:1px solid var(--color-border)}.lump-sum-section{margin-top:16px}.lump-sum-header{display:flex;justify-content:space-between;align-items:center;font-size:13px;font-weight:500;color:var(--color-text-muted);margin-bottom:8px}.btn-small{padding:4px 10px;font-size:12px;font-weight:500;border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-surface);color:var(--color-text);cursor:pointer;transition:all .15s ease}.btn-small:hover{background:var(--color-bg);border-color:var(--color-primary);color:var(--color-primary)}.lump-sum-editor{display:flex;gap:8px;margin-bottom:8px;align-items:flex-end}.lump-sum-field{display:flex;flex-direction:column;gap:4px;flex:1}.lump-sum-field label{font-size:11px;color:var(--color-text-muted)}.lump-sum-field input{padding:6px 10px;border:1px solid var(--color-border);border-radius:var(--radius-sm);font-size:13px;width:100%}.lump-sum-field input:focus{outline:none;border-color:var(--color-primary)}.lump-sum-actions{display:flex;gap:4px}.lump-sum-list{list-style:none;margin:0;padding:0}.lump-sum-list li{display:flex;justify-content:space-between;align-items:center;padding:6px 10px;background:var(--color-bg);border-radius:var(--radius-sm);margin-bottom:4px;font-size:13px}.btn-tiny{width:20px;height:20px;padding:0;border:none;border-radius:50%;background:transparent;color:var(--color-text-muted);font-size:14px;cursor:pointer;transition:all .15s ease}.btn-tiny:hover{background:#fef2f2;color:var(--color-danger)}.schedule-table-container{overflow-x:auto}.schedule-table{width:100%;border-collapse:collapse;font-size:13px}.schedule-table th,.schedule-table td{padding:8px 10px;text-align:right;white-space:nowrap}.schedule-table th:first-child,.schedule-table td:first-child{text-align:center;width:40px}.schedule-table th:nth-child(2),.schedule-table td:nth-child(2){text-align:left}.schedule-table thead th{font-size:11px;font-weight:600;color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.5px;border-bottom:1px solid var(--color-border);background:var(--color-bg);position:sticky;top:0}.schedule-table tbody tr:hover{background:var(--color-bg)}.schedule-table tbody tr.has-extra{background:var(--color-success-bg)}.schedule-table tbody tr.has-extra:hover{background:#d1fae5}.btn-show-more{width:100%;margin-top:12px;padding:10px;border:1px dashed var(--color-border);border-radius:var(--radius-sm);background:transparent;color:var(--color-text-muted);font-size:13px;cursor:pointer;transition:all .15s ease}.btn-show-more:hover{background:var(--color-bg);border-color:var(--color-primary);color:var(--color-primary)}@media(max-width:768px){.app{padding:16px}.scenarios-grid{flex-direction:column}.scenario-column{flex:1 1 auto}.quick-stats{flex-direction:column;gap:8px}.scenarios-header{flex-direction:column;gap:12px;align-items:stretch}.scenarios-actions{justify-content:stretch}.scenarios-actions button{flex:1}}