:root {
  --fg: #222;
  --bg: #fafaf7;
  --accent: #e58a2d;
  --border: #d8d3c7;
  --error: #c14a3a;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, "Hiragino Sans", "Noto Sans JP", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--fg);
  background: var(--bg);
}

.container {
  max-width: 640px;
  margin: 0 auto;
  padding: 24px 16px 64px;
}

h1 { font-size: 1.5rem; margin: 0 0 16px; }
h2 { font-size: 1.2rem; margin: 24px 0 12px; }

form { display: flex; flex-direction: column; gap: 16px; }
label { display: flex; flex-direction: column; gap: 6px; font-weight: 600; }
input[type="text"], input[type="password"], select, textarea {
  font-size: 1rem;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
}

button {
  font-size: 1rem;
  padding: 12px 16px;
  border: none;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
}
button:hover { opacity: 0.9; }

.error { color: var(--error); }
.muted { color: #777; font-size: 0.9rem; }
.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  margin: 12px 0;
}
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 8px; border-bottom: 1px solid var(--border); }