:root{--bg: #f6f7f9;--panel: #ffffff;--border: #e3e6ea;--text: #1f2933;--muted: #6b7280;--accent: #2563eb;--accent-weak: #eef2ff;--positive: #047857;--negative: #b91c1c;--radius: 10px;font-family:system-ui,-apple-system,Segoe UI,Hiragino Kaku Gothic ProN,Noto Sans JP,Meiryo,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);line-height:1.6}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.app-header{display:flex;align-items:center;gap:1.5rem;padding:.75rem 1.5rem;background:var(--panel);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:10}.app-header__brand{font-weight:700;color:var(--text)}.app-header__nav{display:flex;gap:1rem;flex:1}.app-header__nav a{color:var(--muted)}.app-header__nav a.active{color:var(--text);font-weight:600}.auth-status{display:flex;align-items:center;gap:.75rem;font-size:.85rem;color:var(--muted)}.app-main{max-width:1100px;margin:0 auto;padding:1.5rem}h1{font-size:1.4rem;margin:0 0 1rem}h2{font-size:1.1rem;margin:1.5rem 0 .75rem}.kpi-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:1rem;margin-bottom:1.5rem}.kpi{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:1rem}.kpi__label{font-size:.8rem;color:var(--muted)}.kpi__value{font-size:1.35rem;font-weight:700}.panel{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:1.25rem;margin-bottom:1.25rem}table{width:100%;border-collapse:collapse;font-size:.9rem}th,td{text-align:left;padding:.55rem .6rem;border-bottom:1px solid var(--border)}th{color:var(--muted);font-weight:600;font-size:.8rem}td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}.positive{color:var(--positive)}.negative{color:var(--negative)}.badge{display:inline-block;padding:.1rem .5rem;border-radius:999px;font-size:.75rem;background:var(--accent-weak);color:var(--accent)}.btn{display:inline-flex;align-items:center;gap:.35rem;padding:.45rem .9rem;border-radius:8px;border:1px solid var(--accent);background:var(--accent);color:#fff;font-size:.85rem;cursor:pointer}.btn:hover{text-decoration:none;filter:brightness(.96)}.btn--ghost{background:transparent;color:var(--accent)}.btn--secondary{background:var(--panel);color:var(--text);border-color:var(--border)}form.stack{display:grid;gap:.6rem;max-width:520px}label{display:grid;gap:.25rem;font-size:.85rem;color:var(--muted)}input,select,textarea{padding:.45rem .55rem;border:1px solid var(--border);border-radius:8px;font:inherit;background:#fff}.row{display:flex;gap:.75rem;flex-wrap:wrap}.row>*{flex:1}.muted{color:var(--muted)}.error{color:var(--negative);font-size:.85rem}.center{min-height:60vh;display:grid;place-items:center;text-align:center}