* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: #f5f6f8;
  color: #333;
}

.login-box {
  max-width: 360px;
  margin: 80px auto;
  background: #fff;
  padding: 40px;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

h1 {
  font-size: 22px;
  margin-bottom: 24px;
  text-align: center;
}

input {
  width: 100%;
  padding: 12px;
  margin-bottom: 16px;
  border: 1px solid #ddd;
  border-radius: 8px;
  font-size: 15px;
}

button {
  width: 100%;
  padding: 12px;
  background: #1677ff;
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  cursor: pointer;
}

button:hover {
  background: #0958d9;
}

.error {
  color: #ff4d4f;
  margin-top: 12px;
  text-align: center;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
  background: #fff;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.header h1 {
  font-size: 18px;
  margin: 0;
}

.header button {
  width: auto;
  padding: 8px 16px;
  font-size: 14px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  padding: 24px;
}

.card {
  background: #fff;
  padding: 20px;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.label {
  color: #888;
  font-size: 14px;
  margin-bottom: 8px;
}

.value {
  font-size: 24px;
  font-weight: 600;
  color: #1677ff;
}

.section {
  background: #fff;
  margin: 0 24px 24px;
  padding: 20px;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.section h2 {
  font-size: 16px;
  margin-bottom: 16px;
}

.section input {
  width: 180px;
  display: inline-block;
  margin-right: 12px;
}

.section button {
  width: auto;
  display: inline-block;
  padding: 10px 20px;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 16px;
}

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

th {
  background: #f8f9fa;
  color: #666;
  font-weight: 500;
}