body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #f5f7fb;
  color: #1e293b;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 20px;
  background: #0f172a;
  color: #fff;
}

.topbar h1 {
  margin: 0;
  font-size: 20px;
}

.topbar a {
  color: #93c5fd;
  text-decoration: none;
  margin-left: 12px;
}

.container {
  max-width: 1200px;
  margin: 20px auto;
  padding: 0 16px;
}

.card {
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  padding: 16px;
  margin-bottom: 18px;
}

.login-card {
  max-width: 440px;
  margin: 50px auto;
}

label {
  display: block;
  margin-top: 10px;
  font-weight: 600;
}

input {
  width: 100%;
  box-sizing: border-box;
  padding: 10px;
  margin-top: 6px;
}

button {
  margin-top: 14px;
  padding: 10px 14px;
  border: 0;
  border-radius: 6px;
  background: #2563eb;
  color: #fff;
  cursor: pointer;
}

.button {
  display: inline-block;
  margin-top: 14px;
  padding: 10px 14px;
  border-radius: 6px;
  background: #2563eb;
  color: #fff;
  text-decoration: none;
  font-weight: 600;
}

.button:hover {
  background: #1d4ed8;
}

.error {
  color: #b91c1c;
  font-weight: 600;
}

.tabs {
  margin-bottom: 10px;
}

.tab {
  display: inline-block;
  padding: 8px 12px;
  border-radius: 6px;
  background: #e2e8f0;
  color: #0f172a;
  text-decoration: none;
  margin-right: 8px;
}

.tab.active {
  background: #2563eb;
  color: #fff;
}

.log-view {
  background: #0b1020;
  color: #d1fae5;
  border-radius: 8px;
  padding: 12px;
  overflow: auto;
  max-height: 520px;
  font-size: 12px;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

th, td {
  border: 1px solid #cbd5e1;
  padding: 8px;
  text-align: left;
}

th {
  background: #e2e8f0;
}