:root{--bg:#f5f6f8;--card:#fff;--text:#1f2937;--muted:#6b7280;--accent:#b88418;--dark:#111827;--border:#e5e7eb}
*{box-sizing:border-box}body{margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:var(--text)}
a{color:var(--accent)}.app-shell{display:flex;min-height:100vh}.sidebar{width:245px;background:var(--dark);color:#fff;padding:22px 16px;position:fixed;inset:0 auto 0 0}.brand{font-weight:800;font-size:20px;letter-spacing:.4px;margin-bottom:28px}.brand span{display:block;font-size:11px;color:#d6b25f;letter-spacing:2px;margin-top:4px}.sidebar nav a{display:block;color:#d1d5db;text-decoration:none;padding:12px 13px;border-radius:8px;margin:5px 0}.sidebar nav a:hover{background:#1f2937;color:#fff}.main{margin-left:245px;width:calc(100% - 245px)}.topbar{background:#fff;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;padding:17px 24px}.topbar h1{margin:0;font-size:24px}.userbox{font-size:13px;color:var(--muted)}.userbox a{margin-left:12px}.content{padding:24px}.grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:20px;box-shadow:0 2px 8px rgba(0,0,0,.03)}.stat{font-size:30px;font-weight:800;margin-top:8px}.muted{color:var(--muted)}table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--border)}th,td{text-align:left;padding:12px;border-bottom:1px solid var(--border);font-size:14px}th{background:#f9fafb}.btn{display:inline-block;border:0;background:var(--accent);color:#fff;text-decoration:none;padding:10px 16px;border-radius:7px;cursor:pointer}.btn-secondary{background:#4b5563}.btn-danger{background:#b91c1c}.actions{display:flex;gap:8px;align-items:center}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.field label{display:block;font-weight:700;font-size:13px;margin-bottom:6px}.field input,.field select,.field textarea{width:100%;padding:11px;border:1px solid #d1d5db;border-radius:7px;background:#fff}.field textarea{min-height:100px}.alert{padding:12px 14px;border-radius:8px;margin-bottom:15px}.alert-success{background:#dcfce7;color:#166534}.alert-danger{background:#fee2e2;color:#991b1b}.alert-warning{background:#fef3c7;color:#92400e}.login-wrap{min-height:100vh;display:grid;place-items:center;background:#111827}.login-card{width:min(420px,92vw);background:#fff;border-radius:14px;padding:28px}.login-card h1{margin-top:0}.spacer{height:18px}
@media(max-width:900px){.sidebar{position:static;width:100%}.app-shell{display:block}.main{margin:0;width:100%}.grid{grid-template-columns:repeat(2,1fr)}.form-grid{grid-template-columns:1fr}}
@media(max-width:600px){.grid{grid-template-columns:1fr}.topbar{align-items:flex-start;gap:12px;flex-direction:column}.content{padding:14px}}
.badge{display:inline-block;padding:4px 8px;border-radius:999px;font-size:12px;font-weight:700}.badge.success{background:#dcfce7;color:#166534}.badge.danger{background:#fee2e2;color:#991b1b}.btn-secondary{background:#475569}.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:16px}.stat{background:#fff;border:1px solid #e5e7eb;border-radius:12px;padding:18px}.stat span{display:block;color:#64748b;font-size:13px}.stat strong{display:block;font-size:25px;margin-top:6px}