main { 
  display:flex;
  gap:2rem;
  flex-direction:column;
  margin:2rem auto;
}

/* ステップバー */
.steps {
    display: flex;
    align-items: center;
    justify-content: center; /* 左カラム内で中央寄せ */
    margin-bottom: 2rem;
}
.step {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: #ccc;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}
.step.active {
    background: #005D48;
}
.bar {
    flex: 1;
    height: 4px;
    background: #ccc;
    margin: 0 5px;
}
.step.active + .bar {
    background: #005D48;
}

/* レイアウト */
.reservation-body {
    display: flex;
    gap: 2rem;
    align-items: flex-start; 
    flex-wrap: no-wrap;
    padding-bottom:50px;
}
.left {
  flex: 55 1 55%;  /* grow 55, shrink 1, basis 55% */
}
.right {
  flex: 45 1 45%;  /* grow 45, shrink 1, basis 45% */
}

/* 左フォーム */
label {
    display: block;
    margin-bottom: 1rem;
    font-weight: 500;
}
input {
    width: 100%;
    padding: 0.6rem 1rem;
    border-radius: 25px;
    border: 1px solid #ccc;
    margin-top: 0.3rem;
    font-size: 1rem;
    box-sizing: border-box;
    transition: border 0.2s;
    background:#fff;
}
input:focus {
    border-color: #005D48;
    outline: none;
}

/* ボタン */
.button-container {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}
main button , a.btn {
    flex:1;
    padding: 0.8rem 2rem;
    border-radius: 30px;
    font-size: 1rem;
    cursor: pointer;
    border: none;
    transition: opacity 0.2s;
}

button.primary {
    background: #005D48;
    color: #fff;
}
button.primary:hover {
    opacity: 0.8;
}
a.gray {
    color: #333;
    border: 1px solid #ddd;
    transition:0.2s;
    display:inline-block;
    text-align:center;
    text-decoration:none;
}
a.gray:hover {
    background:#ddd;
    transition:0.2s;
}

/* 右側イベント情報 */
.right {
    min-width: 250px;
    background: #fff;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}
.right h3 {
    margin-top: 0;
    margin-bottom: 1rem;
}
/* エラー表示 */
.error {
    color: red;
    margin-bottom: 1rem;
}


/* スマホ向けレスポンシブ */
@media (max-width: 768px) {
  .reservation-body {
    flex-direction: column;
    gap: 1.5rem;
  }
  .left,
  .right {
    flex: 1 1 100%;
  }
  .right {
    min-width: auto;
    padding: 1.5rem;
  }
  .steps {
    flex-wrap: wrap;
  }
}