body {
  font-family: system-ui, "Yu Gothic", "Meiryo", sans-serif;
  max-width: 960px;
  margin: 1rem auto;
  padding: 0 1rem;
  line-height: 1.7;
  color: #222;
}
header h1 { margin: 0.5rem 0 1rem; }
form label { display: inline-block; margin: 0 1rem 0.5rem 0; }
form button { padding: 0.4rem 1rem; }

nav#senjutsu-tabs {
  display: flex;
  gap: 0.25rem;
  border-bottom: 2px solid #666;
  margin: 1rem 0 0;
}
nav#senjutsu-tabs button {
  padding: 0.4rem 1rem;
  background: #eee;
  border: 1px solid #ccc;
  border-bottom: none;
  cursor: pointer;
}
nav#senjutsu-tabs button[aria-selected="true"] {
  background: #fff;
  border-bottom: 2px solid #fff;
  margin-bottom: -2px;
  font-weight: bold;
}
nav#senjutsu-tabs button[disabled] {
  color: #999;
  cursor: not-allowed;
}

section#senjutsu-content { padding: 1rem 0; }

footer#disclaimer {
  border-top: 1px solid #ccc;
  margin-top: 2rem;
  padding: 1rem 0;
  color: #666;
  font-size: 0.9rem;
}

table { border-collapse: collapse; width: 100%; margin: 0.5rem 0; }
th, td { border: 1px solid #ccc; padding: 0.3rem 0.5rem; font-size: 0.9rem; }

.jintaizu {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.25rem;
  max-width: 360px;
  text-align: center;
  margin: 0.5rem 0;
}
.jintaizu div {
  padding: 0.3rem;
  border: 1px solid #ccc;
  min-height: 3em;
}
.yousen p { white-space: pre-wrap; margin: 0.5rem 0; }

.nenun-scroll { max-height: 60vh; overflow: auto; }