* { box-sizing: border-box; font-family: 'Segoe UI', Arial, sans-serif; }
body { margin: 0; background: #f4f6f8; color: #1f2933; }
.layout { display: flex; min-height: 100vh; }
.sidebar { width: 220px; background: #1f3b57; color: #fff; padding: 20px 0; }
.sidebar .brand { padding: 0 20px 20px; font-weight: 600; font-size: 15px; border-bottom: 1px solid #3a5878; }
.sidebar ul { list-style: none; padding: 0; margin: 0; }
.sidebar li a { display: block; padding: 12px 20px; color: #cfe0ee; text-decoration: none; }
.sidebar li a:hover { background: #2c517a; color: #fff; }
.badge { font-size: 10px; background: #e07a2c; padding: 2px 6px; border-radius: 3px; margin-left: 6px; }
.content { flex: 1; padding: 24px 32px; }
table { width: 100%; border-collapse: collapse; background: #fff; }
th, td { padding: 8px 10px; border-bottom: 1px solid #e2e8f0; text-align: left; font-size: 14px; }
th { background: #eef2f5; }
.card { background: #fff; padding: 20px; border-radius: 6px; box-shadow: 0 1px 3px rgba(0,0,0,.08); margin-bottom: 20px; }
input, select, button { padding: 8px; font-size: 14px; border: 1px solid #ccd6e0; border-radius: 4px; }
button { background: #1f3b57; color: #fff; border: none; cursor: pointer; }
button:hover { background: #2c517a; }
.status-current { color: #1a7f37; } .status-npa { color: #c0341d; }
.status-writteoff { color: #7d7d7d; }
.review-flag { background: #fff3cd; }
form .row { margin-bottom: 12px; }
label { display: block; margin-bottom: 4px; font-weight: 600; font-size: 13px; }
.error { color: #c0341d; font-size: 13px; }