/* contact-style.css をベースに、セミナー申し込み用に拡張 */

form {
    margin-top: 120px;
    margin-bottom: 300px;
}

.form-content {
    margin: 0 auto;
    margin-top: 120px;
    width: 700px;
    text-align: center;
    padding-bottom: 40px;
    margin-bottom: 100px;
}

/* ── セクション見出し ── */
.form-section-title {
    text-align: left;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 2px;
    color: #888;
    text-transform: uppercase;
    margin: 40px 0 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid #e0e0e0;
}

.form-section-title:first-of-type {
    margin-top: 10px;
}

/* ── フォームグループ ── */
.form-group {
    margin-bottom: 28px;
    display: flex;
    flex-direction: column;
}

.form-group .title {
    text-align: left;
    font-weight: 600;
    font-size: 15px;
    margin-bottom: 10px;
}

.required {
    color: #e03131;
    margin-left: 2px;
}

/* ── テキスト入力 ── */
.form-control {
    border: 1px solid #ddd;
    border-radius: 6px;
    box-sizing: border-box;
    height: 50px;
    width: 100%;
    background: var(--background-color);
    font-size: 15px;
    padding: 10px;
    font-family: "Inter";
    transition: border-color 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: #000;
}

.form-group textarea.form-control {
    height: 110px;
    resize: vertical;
}

/* ── ラジオ・チェックボックス ── */
.check_label {
    display: flex;
    align-items: center;
    text-align: left;
    padding: 10px 12px;
    border: 1px solid #e8e8e8;
    border-radius: 6px;
    margin-bottom: 6px;
    cursor: pointer;
    font-size: 14px;
    transition: background 0.15s, border-color 0.15s;
}

.check_label:hover {
    background: #f8f8f8;
    border-color: #ccc;
}

.form-check-input {
    display: none;
}

/* ラジオ */
.radio-icon {
    width: 18px;
    height: 18px;
    border: 2px solid #ccc;
    border-radius: 50%;
    margin-right: 10px;
    flex-shrink: 0;
    display: inline-block;
    position: relative;
    transition: border-color 0.15s;
}

.radio:checked + .radio-icon {
    border-color: #000;
}

.radio:checked + .radio-icon::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 8px;
    height: 8px;
    background: #000;
    border-radius: 50%;
}

.radio:checked ~ .check_label,
input[type="radio"]:checked + .radio-icon {
    border-color: #000;
}

/* チェックボックス */
.checkbox-icon {
    width: 18px;
    height: 18px;
    border: 2px solid #ccc;
    border-radius: 3px;
    margin-right: 10px;
    flex-shrink: 0;
    display: inline-block;
    position: relative;
    transition: border-color 0.15s, background 0.15s;
}

.checkbox:checked + .checkbox-icon {
    border-color: #000;
    background: #000;
}

.checkbox:checked + .checkbox-icon::after {
    content: '';
    position: absolute;
    top: 1px;
    left: 4px;
    width: 5px;
    height: 9px;
    border-right: 2px solid #fff;
    border-bottom: 2px solid #fff;
    transform: rotate(45deg);
}

/* ── 送信ボタン ── */
.btn {
    border: none;
    width: 220px;
    background-color: var(--base-color);
    height: 52px;
    color: var(--background-color);
    font-size: 16px;
    font-weight: 600;
    font-family: "Inter";
    border-radius: 50px;
    margin-top: 60px;
    cursor: pointer;
    transition: opacity 0.2s, transform 0.2s;
}

.btn:hover {
    opacity: 0.75;
    transform: translateY(-2px);
}

/* ── 送信完了 ── */
.submit {
    display: none;
    margin-top: 150px;
    margin-bottom: 150px;
}

.submit .title {
    display: flex;
    width: fit-content;
    margin: 0 auto;
}

.submit .title h2 {
    font-size: 30px;
}

.submit .title i {
    font-size: 30px;
    margin: auto 0;
    margin-right: 20px;
}

.submit p {
    margin-bottom: 50px;
    line-height: 1.8;
}

.submit .button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: var(--base-color);
    height: 50px;
    color: var(--background-color);
    padding: 0 40px;
    font-size: 16px;
    font-weight: 400;
    border-radius: 50px;
    margin-top: 50px;
}

/* ── プライバシーポリシーリンク ── */
.form-group a {
    color: var(--base-deep-color);
    text-decoration: underline;
}

/* ── Responsive ── */
@media screen and (max-width: 959px) {
    .form-content {
        width: 580px;
    }
}

@media screen and (max-width: 649px) {
    .form-content {
        width: 100%;
    }
    .form-section-title {
        font-size: 12px;
    }
}