:root{--bg:#f4f6f8;--card:#fff;--text:#1f2a37;--primary:#153d5b;--accent:#2d7c54;--border:#d6dde5;}
*{box-sizing:border-box} body{margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:var(--text)}
a{color:var(--primary);text-decoration:none}.btn,button{background:var(--primary);color:#fff;border:none;padding:10px 14px;border-radius:8px;cursor:pointer;display:inline-block}.btn{line-height:1}.topbar{display:flex;justify-content:space-between;align-items:center;padding:14px 18px;background:var(--primary);color:#fff}.topbar a{color:#fff}.nav{display:flex;gap:10px;flex-wrap:wrap;padding:10px 18px;background:#e9eff4;border-bottom:1px solid var(--border)}.nav a{padding:8px 10px;border-radius:8px;background:#fff;border:1px solid var(--border)}.container{padding:18px;max-width:1400px;margin:0 auto}.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:18px;margin-bottom:18px;box-shadow:0 1px 2px rgba(0,0,0,.04)}.card.inner{margin:0}.narrow{max-width:500px;margin:40px auto}.grid{display:grid;gap:16px}.grid.one{grid-template-columns:1fr}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.grid.two-wide{grid-template-columns:2fr 1.1fr}.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.inline-form{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:12px}label{display:flex;flex-direction:column;gap:6px;font-weight:600}input,select,textarea{padding:10px 12px;border:1px solid var(--border);border-radius:8px;font:inherit;width:100%}textarea{min-height:80px}table{width:100%;border-collapse:collapse;font-size:14px}th,td{padding:9px 10px;border:1px solid var(--border);text-align:left;vertical-align:top}th{background:var(--primary);color:#fff}.flash{padding:12px 14px;border-radius:10px;margin-bottom:14px}.flash.success{background:#dff3e7;color:#165c35}.flash.error{background:#fde3e3;color:#8a1f1f}.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-bottom:18px}.stat{background:#fff;border:1px solid var(--border);border-radius:12px;padding:18px;text-align:center}.stat b{display:block;font-size:28px;color:var(--primary)}.stat span{color:#566}.inactive{opacity:.55}@media (max-width: 900px){.grid.two,.grid.two-wide,.grid.three,.stats{grid-template-columns:1fr}.topbar{flex-direction:column;align-items:flex-start;gap:8px}}