/* ============================================================
   基本スタイル（ログイン画面）
   ============================================================ */

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

body {
  font-family: 'Helvetica Neue', Arial, 'Hiragino Sans', 'Meiryo', sans-serif;
  background: #f0f2f5;
  color: #333;
}

/* ログインページ */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

.login-wrap {
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 12px rgba(0,0,0,.1);
  padding: 40px 48px;
  width: 100%;
  max-width: 400px;
}

.login-title {
  font-size: 1.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 28px;
  color: #1a56a0;
}

.login-title span {
  display: block;
  font-size: 0.9rem;
  font-weight: 400;
  color: #666;
  margin-top: 4px;
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  margin-bottom: 6px;
  color: #555;
}

.form-group input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-size: 1rem;
  transition: border-color .2s;
}

.form-group input:focus {
  outline: none;
  border-color: #1a56a0;
}

.btn-login {
  width: 100%;
  padding: 12px;
  background: #1a56a0;
  color: #fff;
  border: none;
  border-radius: 4px;
  font-size: 1rem;
  cursor: pointer;
  margin-top: 8px;
  transition: background .2s;
}

.btn-login:hover {
  background: #154585;
}

.error-msg {
  background: #fff0f0;
  border: 1px solid #e88;
  border-radius: 4px;
  color: #c00;
  font-size: 0.875rem;
  padding: 10px 12px;
  margin-bottom: 18px;
}

/* アラート（成功・エラー） */
.alert {
  padding: 12px 16px;
  border-radius: 4px;
  margin-bottom: 20px;
  font-size: 0.9rem;
}
.alert-success {
  background: #e6f9ed;
  border: 1px solid #a3ddb6;
  color: #1a7a3c;
}
.alert-error {
  background: #fff0f0;
  border: 1px solid #e8a0a0;
  color: #c00;
}