:root{--bg:#f5f6f8;--card:#fff;--text:#18191c;--muted:#6b7280;--accent:#111827;--border:#e5e7eb}*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Arial,sans-serif;background:var(--bg);color:var(--text)}a{text-decoration:none;color:inherit}.shell{display:grid;grid-template-columns:230px 1fr;min-height:100vh}.side{background:#111827;color:#fff;padding:24px 16px}.brand{font-weight:800;font-size:20px;margin-bottom:28px}.brand small{display:block;color:#9ca3af;font-size:11px;font-weight:600;letter-spacing:.08em}.nav a{display:block;padding:10px 12px;border-radius:9px;margin:4px 0;color:#d1d5db}.nav a:hover,.nav a.active{background:#1f2937;color:#fff}.main{padding:28px;max-width:1500px}.top{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px}.title h1{margin:0;font-size:28px}.title p{margin:4px 0 0;color:var(--muted)}.grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:18px}.metric{font-size:28px;font-weight:800}.label{color:var(--muted);font-size:13px}.btn{display:inline-block;padding:10px 14px;border-radius:9px;border:1px solid var(--border);background:#fff;cursor:pointer}.btn.primary{background:#111827;color:white;border-color:#111827}.btn.green{background:#047857;color:white;border-color:#047857}.btn.red{background:#b91c1c;color:white;border-color:#b91c1c}.actions{display:flex;gap:8px;flex-wrap:wrap}.tablewrap{overflow:auto;background:white;border:1px solid var(--border);border-radius:14px}table{width:100%;border-collapse:collapse}th,td{padding:11px 12px;border-bottom:1px solid var(--border);text-align:left;font-size:14px}th{background:#f9fafb}.field{margin-bottom:14px}.field label{display:block;font-size:13px;font-weight:700;margin-bottom:5px}.field input,.field textarea,.field select{width:100%;padding:10px 11px;border:1px solid #d1d5db;border-radius:8px;background:#fff}.flash{padding:12px 14px;border-radius:9px;margin-bottom:14px}.flash.success{background:#ecfdf5;color:#065f46}.flash.error{background:#fef2f2;color:#991b1b}.flash.info{background:#eff6ff;color:#1e40af}.badge{display:inline-block;border-radius:999px;padding:4px 8px;background:#f3f4f6;font-size:12px}.login{max-width:430px;margin:10vh auto;background:#fff;padding:28px;border-radius:16px;border:1px solid var(--border)}@media(max-width:900px){.shell{grid-template-columns:1fr}.side{display:none}.main{padding:16px}.grid{grid-template-columns:1fr 1fr}}@media(max-width:540px){.grid{grid-template-columns:1fr}.top{align-items:flex-start;gap:10px;flex-direction:column}}