*,:after,:before{box-sizing:border-box;margin:0;padding:0}:root{--color-primary:#1e40af;--color-primary-bg:#dbeafe;--color-text:#111827;--color-text-muted:#6b7280;--color-border:#e5e7eb;--color-bg:#f9fafb;--color-white:#fff;--color-error:#dc2626;--color-error-bg:#fee2e2;--color-success:#16a34a;--color-success-bg:#dcfce7;--radius-sm:4px;--radius-md:8px;--radius-lg:12px;--shadow-sm:0 1px 3px rgba(0,0,0,.08);--shadow-md:0 4px 12px rgba(0,0,0,.1)}body,html{height:100%;font-family:Hiragino Kaku Gothic ProN,Hiragino Sans,Meiryo,sans-serif;font-size:14px;color:var(--color-text);background-color:var(--color-bg);line-height:1.6;-webkit-font-smoothing:antialiased}.case-card{background:var(--color-white);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:16px;margin-bottom:12px;box-shadow:var(--shadow-sm);transition:box-shadow .15s ease;cursor:pointer}.case-card:hover{box-shadow:var(--shadow-md)}.case-status-badge{display:inline-block;background-color:var(--color-primary-bg);color:var(--color-primary);padding:4px 8px;border-radius:var(--radius-sm);font-size:12px;font-weight:600}.case-title{font-size:16px;font-weight:700;color:var(--color-text);margin-top:8px}.form-group{margin-bottom:16px}.form-label{display:block;font-size:13px;font-weight:600;color:var(--color-text);margin-bottom:6px}.form-input{width:100%;padding:10px 14px;border:1px solid var(--color-border);border-radius:var(--radius-md);font-size:14px;color:var(--color-text);background:var(--color-white);transition:border-color .15s ease,box-shadow .15s ease;outline:none;-webkit-appearance:none;-moz-appearance:none;appearance:none}.form-input:focus{border-color:var(--color-primary);box-shadow:0 0 0 3px rgba(30,64,175,.12)}.form-input.error{border-color:var(--color-error)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px 20px;border:none;border-radius:var(--radius-md);font-size:14px;font-weight:600;cursor:pointer;transition:background .15s ease,opacity .15s ease;text-decoration:none;white-space:nowrap}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-primary{background:var(--color-primary);color:var(--color-white);width:100%}.btn-primary:hover:not(:disabled){background:#1e3a8a}.alert{padding:12px 16px;border-radius:var(--radius-md);font-size:13px;margin-bottom:16px}.alert-error{background:var(--color-error-bg);color:var(--color-error);border:1px solid #fca5a5}@media (max-width:768px){.case-title{font-size:14px}.form-input{font-size:16px}}