* { box-sizing: border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  margin: 0;
  background: #f5f6f8;
  color: #1f2328;
}
header {
  background: #1f2328;
  color: #fff;
  padding: 12px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
header h1 { margin: 0; font-size: 18px; font-weight: 500; }
header a, header button {
  color: #fff;
  background: transparent;
  border: 1px solid #4b5563;
  padding: 6px 12px;
  border-radius: 4px;
  cursor: pointer;
  text-decoration: none;
  font-size: 14px;
}
header button:hover, header a:hover { background: #2d333b; }
main { max-width: 1200px; margin: 24px auto; padding: 0 24px; }
.card {
  background: #fff;
  border: 1px solid #d0d7de;
  border-radius: 6px;
  padding: 16px;
  margin-bottom: 16px;
}
.toolbar { display: flex; gap: 8px; align-items: center; margin-bottom: 12px; flex-wrap: wrap; }
.toolbar select, .toolbar input, .toolbar button {
  padding: 6px 10px;
  border: 1px solid #d0d7de;
  border-radius: 4px;
  font-size: 14px;
  background: #fff;
}
button.primary {
  background: #1f883d; color: #fff; border-color: #1a7f37;
  padding: 8px 14px; border-radius: 6px; cursor: pointer; font-weight: 500;
}
button.primary:hover { background: #1a7f37; }
button.danger {
  background: #cf222e; color: #fff; border-color: #a40e26;
  padding: 8px 14px; border-radius: 6px; cursor: pointer; font-weight: 500;
}
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid #eaeef2; font-size: 14px; }
th { background: #f6f8fa; font-weight: 600; }
tr:hover td { background: #f9fafb; cursor: pointer; }
.badge {
  display: inline-block; padding: 2px 8px; border-radius: 12px;
  font-size: 12px; font-weight: 500;
}
.badge.new { background: #ddf4ff; color: #0969da; }
.badge.contacted { background: #fff8c5; color: #9a6700; }
.badge.negotiating { background: #fbefff; color: #8250df; }
.badge.won { background: #dafbe1; color: #1a7f37; }
.badge.lost { background: #ffebe9; color: #cf222e; }
.field { margin-bottom: 12px; }
.field label { display: block; font-size: 12px; color: #57606a; margin-bottom: 4px; font-weight: 500; }
.field .value { font-size: 14px; }
.field input, .field select, .field textarea {
  width: 100%; padding: 6px 10px;
  border: 1px solid #d0d7de; border-radius: 4px; font-size: 14px;
  font-family: inherit;
}
.field textarea { min-height: 80px; resize: vertical; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.error { color: #cf222e; font-size: 13px; margin-top: 8px; }
.muted { color: #57606a; font-size: 13px; }
.actions { display: flex; gap: 8px; margin-top: 16px; }
.login-wrap {
  max-width: 360px; margin: 80px auto; padding: 0 16px;
}
.login-wrap h1 { text-align: center; }