/* frontend/css/common.css */
body {
  font-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", sans-serif;
  background: #f4f7fa;
  color: #222;
  margin: 0;
  padding: 24px;
}
.card {
  background: #fff;
  border-radius: 10px;
  padding: 24px;
  max-width: 480px;
  margin: 40px auto;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
}
h1 { color: #14324f; font-size: 20px; }
input, button, textarea, select {
  font-size: 15px;
  padding: 10px;
  width: 100%;
  box-sizing: border-box;
  margin-bottom: 12px;
  border: 1px solid #ccc;
  border-radius: 6px;
}
button {
  background: #14324f;
  color: #fff;
  border: none;
  cursor: pointer;
  font-weight: bold;
}
button:hover { background: #1d476e; }
.error { color: #c0392b; font-size: 13px; }
.warning { background: #fff6e5; border-left: 4px solid #e0a300; padding: 10px 14px; font-size: 13px; margin-bottom: 12px; }