:root{--color-bg:#f4f5f7;--color-surface:#fff;--color-border:#d9dce1;--color-text:#1f2430;--color-text-muted:#616774;--color-primary:#1a5fb4;--color-primary-hover:#164b8f;--color-danger:#c0392b;--color-danger-bg:#fdecea;--radius:8px;font-family:-apple-system,BlinkMacSystemFont,Hiragino Sans,Hiragino Kaku Gothic ProN,Yu Gothic,Meiryo,sans-serif}*{box-sizing:border-box}body{background:var(--color-bg);color:var(--color-text);margin:0}h1,h2,h3{margin:0 0 .5em;font-weight:700}button{cursor:pointer;font-family:inherit}input,select,textarea{font-family:inherit;font-size:1rem}.app-shell{max-width:1080px;margin:0 auto;padding:0 1.5rem 3rem}.app-nav{background:var(--color-surface);border-bottom:1px solid var(--color-border);align-items:center;gap:1.5rem;margin-bottom:1.5rem;padding:1rem 1.5rem;display:flex}.app-nav .brand{color:var(--color-primary);margin-right:auto;font-size:1.1rem;font-weight:700}.app-nav a{color:var(--color-text-muted);border-bottom:2px solid #0000;padding:.4rem .2rem;text-decoration:none}.app-nav a.active{color:var(--color-primary);border-bottom-color:var(--color-primary);font-weight:600}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);padding:1.25rem}.btn{background:var(--color-primary);color:#fff;border-radius:var(--radius);border:none;align-items:center;gap:.4rem;padding:.55rem 1.1rem;font-size:.95rem;font-weight:600;display:inline-flex}.btn:hover{background:var(--color-primary-hover)}.btn:disabled{cursor:not-allowed;background:#a9b3c1}.btn-secondary{background:var(--color-surface);color:var(--color-text);border:1px solid var(--color-border)}.btn-secondary:hover{background:var(--color-bg)}.btn-danger{background:var(--color-danger-bg);color:var(--color-danger);border:1px solid #f1c4bd}.field{flex-direction:column;gap:.3rem;margin-bottom:.9rem;display:flex}.field label{color:var(--color-text-muted);font-size:.85rem;font-weight:600}.field input[type=text],.field input[type=tel],.field input[type=number],.field select,.field textarea{border:1px solid var(--color-border);border-radius:var(--radius);background:var(--color-surface);padding:.5rem .6rem}.error-banner{background:var(--color-danger-bg);color:var(--color-danger);border-radius:var(--radius);border:1px solid #f1c4bd;margin-bottom:1rem;padding:.75rem 1rem;font-size:.9rem}.checkbox-group{flex-wrap:wrap;gap:.6rem 1rem;display:flex}.checkbox-group label{color:var(--color-text);align-items:center;gap:.3rem;font-size:.9rem;font-weight:400;display:flex}table{border-collapse:collapse;width:100%;font-size:.9rem}th,td{text-align:left;border-bottom:1px solid var(--color-border);padding:.55rem .6rem}th{color:var(--color-text-muted);white-space:nowrap;font-weight:600}.stat-grid{grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:1rem;margin-bottom:1.5rem;display:grid}.stat-tile{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);text-align:center;padding:1rem}.stat-tile .value{color:var(--color-primary);font-size:1.8rem;font-weight:700}.stat-tile .label{color:var(--color-text-muted);margin-top:.2rem;font-size:.8rem}.tag{background:var(--color-bg);border:1px solid var(--color-border);border-radius:999px;margin:.1rem .2rem .1rem 0;padding:.15rem .6rem;font-size:.78rem;display:inline-block}