:root{--primary: #1e3a8a;--primary-light: #3b82f6;--accent: #f97316;--accent-hover: #ea580c;--bg-main: #f8fafc;--bg-card: #ffffff;--text-main: #1e293b;--text-muted: #64748b;--border: #e2e8f0;--shadow: 0 4px 6px -1px rgb(0 0 0 / .1);--radius: 12px;font-family:Inter,Noto Sans JP,sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-main);color:var(--text-main);min-height:100vh;display:flex;flex-direction:column}header{background-color:var(--primary);color:#fff;padding:1.5rem;text-align:center;box-shadow:var(--shadow)}main{flex:1;max-width:1200px;margin:2rem auto;padding:0 1rem;display:grid;grid-template-columns:1fr 1fr;gap:2rem;width:100%}@media (max-width: 968px){main{grid-template-columns:1fr}}.card{background:var(--bg-card);border-radius:var(--radius);padding:2rem;border:1px solid var(--border);box-shadow:var(--shadow)}.card-title{font-size:1.25rem;font-weight:600;margin-bottom:1.5rem;color:var(--primary);display:flex;align-items:center;gap:.5rem}.card-title:before{content:"";width:4px;height:1.2rem;background:var(--accent);border-radius:2px}.form-group{margin-bottom:1.5rem}label{display:block;font-size:.875rem;font-weight:500;margin-bottom:.5rem;color:var(--text-muted)}input[type=number],select{width:100%;padding:.75rem;border:1px solid var(--border);border-radius:8px;font-size:1rem}.radio-group{display:flex;gap:1.5rem;padding:.5rem 0}.checkbox-group{display:flex;align-items:center;gap:.75rem;padding:1rem;background:var(--bg-main);border-radius:8px;cursor:pointer}button.btn-primary{width:100%;padding:1rem;background-color:var(--accent);color:#fff;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:background .2s}button.btn-primary:hover{background-color:var(--accent-hover)}.results-container{display:none}.results-container.visible{display:block}table{width:100%;border-collapse:collapse;margin-top:1rem}th,td{padding:1rem;text-align:left;border-bottom:1px solid var(--border)}th{font-size:.875rem;color:var(--text-muted)}.amount{text-align:right;font-family:JetBrains Mono,monospace}.row-highlight{background-color:#f1f5f9}.row-total{background-color:var(--primary);color:#fff;font-weight:700}.badge{display:inline-block;padding:.25rem .5rem;border-radius:4px;font-size:.75rem;background:#e0f2fe;color:#0369a1;margin-bottom:1rem}footer{text-align:center;padding:2rem;color:var(--text-muted);font-size:.875rem}