body { font-family: Arial, sans-serif; background: #f3f4f6; margin: 0; min-height: 100vh; display: flex; align-items: center; justify-content: center; color: #111827; }
.login-card { width: 100%; max-width: 440px; background: white; border: 1px solid #e5e7eb; border-radius: 16px; padding: 28px; box-shadow: 0 12px 32px rgba(0,0,0,0.08); }
h1 { margin: 0 0 8px; }
.muted { color: #6b7280; font-size: 14px; margin-bottom: 18px; line-height: 1.5; }
label { display: block; font-weight: bold; font-size: 13px; margin-bottom: 6px; }
input { width: 100%; padding: 12px; border: 1px solid #d1d5db; border-radius: 8px; box-sizing: border-box; margin-bottom: 14px; }
button { width: 100%; padding: 12px; background: #2563eb; color: white; border: none; border-radius: 8px; font-weight: bold; cursor: pointer; }
a { display: inline-block; margin-top: 14px; color: #2563eb; text-decoration: none; }
.error { background: #fee2e2; color: #991b1b; padding: 10px; border-radius: 8px; margin-bottom: 14px; }