body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #0b0b0b;
  color: #eaeaea;
}

a {
  color: #4ea3ff;
  text-decoration: none;
}

header {
  padding: 15px 30px;
  background: #000;
  border-bottom: 1px solid #222;
}

header a {
  margin-right: 20px;
  font-weight: 600;
}

.container {
  padding: 30px;
}

h1 {
  margin-top: 0;
}

input {
  padding: 10px;
  width: 300px;
  max-width: 100%;
  background: #111;
  border: 1px solid #333;
  color: #fff;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
}

th, td {
  padding: 12px;
  border-bottom: 1px solid #222;
  text-align: left;
}

.green { color: #3ddc84; }
.red { color: #ff5c5c; }

.cards {
  display: flex;
  gap: 20px;
  margin-top: 20px;
}

.card {
  background: #111;
  padding: 15px;
  flex: 1;
  border-radius: 6px;
}