:root{--bg:#f5f7fb;--surface:#fff;--ink:#16202a;--muted:#6b7280;--line:#e5e7eb;--brand:#b42318;--brand2:#7a271a;--green:#067647;--amber:#b54708;--blue:#175cd3;--shadow:0 8px 30px rgba(16,24,40,.06)}*{box-sizing:border-box}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Arial,sans-serif;background:var(--bg);color:var(--ink)}a{color:inherit}.app-shell{min-height:100vh}.sidebar{position:fixed;inset:0 auto 0 0;width:270px;background:#111827;color:#fff;padding:20px 16px;display:flex;flex-direction:column;z-index:20}.brand{display:flex;gap:12px;align-items:center;padding:4px 6px 22px}.brand-mark{width:42px;height:42px;border-radius:12px;background:linear-gradient(145deg,#ef4444,#991b1b);display:grid;place-items:center;font-weight:900;box-shadow:0 8px 18px rgba(239,68,68,.25)}.brand strong{display:block;font-size:18px}.brand small,.sidebar-foot small{display:block;color:#9ca3af;margin-top:2px}.sidebar nav{display:grid;gap:5px}.sidebar nav a{padding:11px 12px;border-radius:10px;text-decoration:none;color:#d1d5db}.sidebar nav a:hover,.sidebar nav a.active{background:#1f2937;color:#fff}.sidebar-foot{margin-top:auto;border-top:1px solid #374151;padding:16px 8px 4px}.sidebar-foot a{display:inline-block;margin-top:10px;color:#fca5a5;font-size:13px}.main{margin-left:270px;min-height:100vh}.topbar{height:82px;background:rgba(255,255,255,.92);border-bottom:1px solid var(--line);display:flex;align-items:center;padding:0 28px;gap:14px;position:sticky;top:0;z-index:10;backdrop-filter:blur(8px)}.topbar h1{font-size:21px;margin:0}.topbar p{font-size:12px;color:var(--muted);margin:3px 0 0}.icon-btn{display:none;border:0;background:#f3f4f6;padding:9px 11px;border-radius:9px;font-size:18px}.content{padding:26px}.grid{display:grid;gap:18px}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.card{background:var(--surface);border:1px solid 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form{margin:0}.empty{text-align:center;padding:30px;color:var(--muted)}.bar-chart{display:flex;align-items:end;gap:8px;height:190px;padding:12px 0 0}.bar-col{flex:1;display:flex;flex-direction:column;align-items:center;gap:6px;min-width:32px}.bar{width:100%;max-width:42px;background:linear-gradient(#ef4444,#b42318);border-radius:6px 6px 2px 2px;min-height:2px}.bar-label{font-size:10px;color:var(--muted);transform:rotate(-35deg);white-space:nowrap;margin-top:10px}.login-page{min-height:100vh;display:grid;place-items:center;padding:24px;background:radial-gradient(circle at 10% 10%,#fee4e2,transparent 28%),linear-gradient(135deg,#f9fafb,#eef2f7)}.login-box{width:min(920px,100%);display:grid;grid-template-columns:1.15fr .85fr;background:#fff;border-radius:24px;overflow:hidden;box-shadow:0 30px 80px rgba(16,24,40,.13)}.login-hero{padding:54px;background:#111827;color:#fff;display:flex;flex-direction:column;justify-content:space-between;min-height:520px}.login-hero 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