body {
  margin: 0;
  background: #f4f6fb;
  color: #111827;
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
}

.container {
  max-width: 960px;
  margin: 32px auto;
  padding: 0 16px 40px;
}

h1 {
  margin: 0 0 8px;
}

h2 {
  margin: 0 0 12px;
  font-size: 1.05rem;
}

.subtitle {
  margin: 0 0 20px;
  color: #4b5563;
}

.card {
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 14px;
}

label {
  display: block;
  margin: 10px 0 6px;
  font-weight: 600;
}

input {
  width: 100%;
  box-sizing: border-box;
  border: 1px solid #d1d5db;
  border-radius: 8px;
  padding: 10px 12px;
}

button {
  margin-top: 14px;
  border: 0;
  border-radius: 8px;
  background: #0f766e;
  color: #fff;
  padding: 10px 14px;
  cursor: pointer;
}

button[disabled] {
  opacity: 0.6;
  cursor: default;
}

ul {
  margin: 8px 0 0;
  padding-left: 20px;
}

.table-wrap {
  overflow: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  border: 1px solid #e5e7eb;
  padding: 8px;
  font-size: 0.9rem;
  text-align: left;
  vertical-align: top;
}