body { font-family: Arial, sans-serif; margin: 0; padding: 0; background: #f5f6fa; color: #222; }
header { background: #2b2d42; color: #fff; padding: 12px 20px; display: flex; justify-content: space-between; align-items: center; }
header .brand { font-weight: 700; letter-spacing: 0.5px; }
nav a { color: #fff; margin-right: 14px; text-decoration: none; }
nav a:last-child { margin-right: 0; }
main { padding: 20px; max-width: 1100px; margin: 0 auto; }
h1 { margin-top: 0; }
table { width: 100%; border-collapse: collapse; background: #fff; box-shadow: 0 1px 3px rgba(0,0,0,0.08); }
table th, table td { padding: 10px; border-bottom: 1px solid #eee; text-align: left; }
table thead { background: #f0f0f5; }
.inline-form { display: flex; gap: 10px; margin-bottom: 15px; align-items: center; }
.inline-form input, .inline-form select { padding: 8px; }
.inline-form button { padding: 8px 12px; background: #2b2d42; color: #fff; border: none; cursor: pointer; }
.error { background: #ffe3e3; color: #b40000; padding: 10px; margin: 10px 0; border: 1px solid #f3b0b0; }
.login-body { display: flex; justify-content: center; align-items: center; height: 100vh; background: linear-gradient(135deg, #2b2d42, #8d99ae); }
.login-card { background: #fff; padding: 24px 28px; width: 320px; box-shadow: 0 2px 8px rgba(0,0,0,0.15); border-radius: 6px; }
.login-card h2 { margin-top: 0; }
.login-card label { display: block; margin: 8px 0 4px; }
.login-card input { width: 100%; padding: 8px; margin-bottom: 10px; }
.login-card button { width: 100%; padding: 10px; background: #2b2d42; color: #fff; border: none; cursor: pointer; }