@charset "utf-8";

/* ===== 基本設定 ===== */
body.event_form {
    font-family: "Helvetica", "Arial", sans-serif;
    background: #f5f7fa;
    color: #333;
    margin: 0;
    padding: 0;
}

.conteinar {
    max-width: 900px;
    margin: 0 auto;
    background: #fff;
    padding: 2rem;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    border-radius: 10px;
}

/* ===== 見出し・説明文 ===== */
.head h1 {
    font-size: 1.9rem;
    margin-bottom: 1rem;
    border-left: 6px solid #4a90e2;
    padding-left: 12px;
}

.st_day {
    font-size: 1rem;
    margin-bottom: 1rem;
}

.f_txt {
    background: #f0f4ff;
    padding: 1rem;
    border-radius: 6px;
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 2rem;
}

/* ===== 入力フォーム ===== */
.form-group {
    margin-bottom: 1.6rem;
}

.form-group label {
    font-weight: bold;
    display: block;
    margin-bottom: 0.4rem;
}

.form-group .required,
.form-group .required2 {
    color: red;
    font-weight: bold;
    margin-left: 5px;
}

.description,
.description2 {
    font-size: 0.8rem;
    font-weight: normal;
    margin-left: 5px;
    color: #666;
}

/* 入力欄 */
.form-group input[type=text],
.form-group input[type=email],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.7rem;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-size: 1rem;
    box-sizing: border-box;
}

textarea {
    resize: vertical;
}

/* ラジオボタン */
.radio-group label {
    margin-right: 1.5rem;
    font-size: 1rem;
}

/* ===== ボタン ===== */
button,
input[type=submit] {
    background: #4a90e2;
    color: #fff;
    padding: 0.8rem 1.8rem;
    font-size: 1.1rem;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: 0.2s;
}
button:hover {
    background: #357ac8;
}
button:disabled {
    background: #ccc;
}

/* 戻るボタン */
.bk_box {
    text-align: center;
    margin-top: 2rem;
}

.bk_box a {
    color: #4a90e2;
    font-size: 1rem;
}

/* ===== モーダル共通 ===== */
#confirmModal, #privacyModal {
    display: none;
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0,0,0,0.6);
    z-index: 1000;
    overflow-y: auto;
}

#confirmModal > div,
#privacyModal > div {
    background: white;
    max-width: 600px;
    margin: 40px auto;
    padding: 1.5rem;
    border-radius: 8px;
    position: relative;
}

/* ===== PC（デスクトップ）デザイン ===== */
@media (min-width: 1025px) {
    .conteinar {
        padding: 3rem;
    }

    .head h1 {
        font-size: 2.1rem;
    }

    .form-group label {
        font-size: 1.05rem;
    }
}

/* ===== タブレット（768px〜1024px） ===== */
@media (max-width: 1024px) and (min-width: 768px) {
    .conteinar {
        padding: 2rem;
    }

    .head h1 {
        font-size: 1.8rem;
    }

    .form-group input,
    .form-group select {
        font-size: 1rem;
    }
}

/* ===== スマホ（0〜767px） ===== */
@media (max-width: 767px) {
    .conteinar {
        padding: 1.2rem;
        margin: 0 10px;
    }

    .head h1 {
        font-size: 1.4rem;
        line-height: 1.5;
    }

    .st_day {
        font-size: 0.9rem;
        margin-bottom: 1rem;
    }

    .f_txt {
        font-size: 0.85rem;
        padding: 0.8rem;
    }

    .form-group label {
        font-size: 0.95rem;
    }

    .description,
    .description2 {
        display: block;
        margin-left: 0;
        margin-top: 3px;
    }

    button {
        width: 100%;
        display: block;
        margin: 0.6rem auto;
    }

    /* モーダルの余白調整 */
    #confirmModal > div,
    #privacyModal > div {
        margin: 20px auto;
        width: 90%;
        max-height: 85vh;
        overflow-y: auto;
    }
}