:root{--bg:#f4f6f8;--ink:#17212b;--muted:#64748b;--nav:#0f172a;--accent:#d9232e;--line:#d9e0e7;--card:#fff}
*{box-sizing:border-box}body{margin:0;font-family:Segoe UI,Arial,sans-serif;background:var(--bg);color:var(--ink)}
.topbar{background:#fff;border-bottom:1px solid var(--line);padding:18px 28px;display:flex;justify-content:space-between;align-items:center}.brand{font-size:24px;font-weight:800}.brand span{font-weight:500}.tag,.muted,small{color:var(--muted)}
.nav{background:var(--nav);padding:0 22px;display:flex;gap:4px;flex-wrap:wrap}.nav a{color:#e2e8f0;text-decoration:none;padding:13px 14px}.nav a:hover{background:#1e293b}.container{max-width:1450px;margin:auto;padding:24px}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:18px}.card,.panel,.login-card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:18px}.kpi{font-size:34px;font-weight:800}.grid2{display:grid;grid-template-columns:1fr 1fr;gap:18px}.narrow{max-width:760px}.title-row{display:flex;justify-content:space-between;align-items:center}
table{width:100%;border-collapse:collapse;font-size:14px}th,td{text-align:left;padding:10px;border-bottom:1px solid var(--line);vertical-align:top}th{font-size:12px;text-transform:uppercase;color:var(--muted)}
input,select,textarea{width:100%;padding:10px;border:1px solid #cbd5e1;border-radius:7px;background:#fff}input[type=checkbox]{width:auto}label{font-weight:600;display:block;margin-bottom:5px}form p{margin:14px 0}
.btn,button{border:0;border-radius:7px;padding:9px 13px;cursor:pointer;text-decoration:none;display:inline-block;background:#e2e8f0;color:#111827}.primary{background:var(--nav);color:white}.danger{background:var(--accent);color:#fff}.flash{padding:12px 14px;border-radius:8px;margin-bottom:14px;background:#e8f5e9}.flash.error{background:#fde8e8}.inline{display:inline}.linkbtn{background:none;padding:0;color:#b91c1c}.login-card{max-width:430px;margin:70px auto}code{font-family:Consolas,monospace}
@media(max-width:900px){.cards,.grid2{grid-template-columns:1fr}.container{padding:14px}}