:root{--bg: #f6f7f9;--panel: #ffffff;--border: #e3e6ea;--primary: #2f52c4;--primary-d: #23409c;--text: #16191d;--body: #454b53;--muted: #5c636b;--danger: #dc2626;--font-heading: "Zen Kaku Gothic New", "Noto Sans JP", system-ui, sans-serif;--font-body: "Noto Sans JP", system-ui, sans-serif}*{box-sizing:border-box}body{margin:0;font-family:var(--font-body);background:var(--bg);color:var(--body);-webkit-font-smoothing:antialiased}h1,h2,h3,h4{font-family:var(--font-heading);color:var(--text);font-weight:700}a{color:var(--primary);text-decoration:none}a:hover{color:var(--primary-d)}button{font:inherit;font-family:var(--font-heading);font-weight:700;cursor:pointer;border:none;border-radius:8px;padding:10px 20px;background:var(--primary);color:#fff}button:hover{background:var(--primary-d)}button.secondary{background:#e5e7eb;color:var(--text)}button.secondary:hover{background:#d5d9df}button.danger{background:var(--danger)}button.link{background:none;color:var(--primary);padding:4px 8px}button:disabled{opacity:.5;cursor:not-allowed}input,select{font:inherit;padding:8px 10px;border:1px solid var(--border);border-radius:8px;background:#fff;width:100%}label{display:block;font-size:13px;color:var(--muted);margin:10px 0 4px}.center-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}.card{background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:28px;box-shadow:0 2px 8px #0000000a}.card.narrow{width:100%;max-width:420px}.app{display:flex;min-height:100vh}.sidebar{width:220px;background:var(--text);color:#c3c9d1;padding:20px 14px;display:flex;flex-direction:column;gap:4px}.sidebar h1{font-size:17px;color:#fff;margin:4px 8px 18px}.sidebar a{color:#c3c9d1;padding:10px 12px;border-radius:8px;display:block}.sidebar a.active,.sidebar a:hover{background:var(--primary);color:#fff}.sidebar .spacer{flex:1}.sidebar .email{font-size:12px;color:#8b929b;padding:0 12px 8px}.main{flex:1;padding:28px 36px;overflow:auto}.main h2{margin:0 0 18px}.toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}table{width:100%;border-collapse:collapse;background:#fff;border-radius:10px;overflow:hidden}th,td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--border);font-size:14px}th{background:var(--bg);color:var(--text);font-family:var(--font-heading);font-weight:700}tr:last-child td{border-bottom:none}.right{text-align:right}.badge{padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600}.badge.draft{background:#f3f4f6;color:#4b5563}.badge.issued{background:#e6ebf9;color:var(--primary-d)}.badge.paid{background:#dcfce7;color:#15803d}.row{display:flex;gap:12px}.row>*{flex:1}.muted{color:var(--muted);font-size:13px}.error{color:var(--danger);font-size:13px;margin:8px 0}.success{color:#15803d;font-size:13px;margin:8px 0}.item-row{display:grid;grid-template-columns:1fr 80px 110px 90px 110px 36px;gap:8px;align-items:center;margin-bottom:8px}.item-row .label-head{font-size:12px;color:var(--muted)}.actions{display:flex;gap:8px}.spacer-y{height:16px}.kv{display:flex;justify-content:space-between;padding:6px 0;max-width:320px;margin-left:auto}.kv.total{font-size:18px;font-weight:700;border-top:1px solid var(--border);margin-top:6px;padding-top:10px}