/* --- Header & Base --- */
.page-header {
    position: relative;
    padding: 120px 0 60px;
    background-color: var(--color-white);
    color: var(--color-primary);
    overflow: hidden;
}
.page-header__bg {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background-size: cover; background-position: center; z-index: 1;
}
.page-header .container { position: relative; z-index: 2; }
.page-header__title {
    font-size: clamp(40px, 8vw, 80px);
    font-weight: 700; margin-bottom: 40px;
}
.page-header__title span {
    display: block; font-family: var(--font-en); font-size: 16px;
    color: var(--color-accent); letter-spacing: 0.5em; margin-bottom: 20px;
}

/* --- Form Steps Indicator --- */
.form-steps {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin: 0 auto;
    padding: 20px 0!important;
}
.form-steps__item {
    font-size: 14px;
    font-weight: 700;
    color: #ccc;
    display: flex;
    align-items: center;
    gap: 10px;
}
.form-steps__item span {
    width: 28px; height: 28px;
    border: 1px solid #ccc;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 13px;
}
.form-steps__item.is-active { color: var(--color-primary); }
.form-steps__item.is-active span {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-white);
}

/* --- Form Design --- */
.contact-form-section { padding-bottom: 120px; background-color: var(--color-bg); }
.container--narrow { max-width: 800px; margin: 0 auto; padding: 0; }
.form-wrapper { background-color: var(--color-white); padding: 80px; box-shadow: 0 40px 100px rgba(0,0,0,0.03); }
.form-item { margin-bottom: 2em; }
.form-label { display: block; font-weight: 700; font-size: 15px; margin-bottom: 0.5em; color: var(--color-primary); }
.form-required {
    display: inline-block; background-color: var(--color-accent); color: var(--color-white);
    font-size: 10px; padding: 2px 8px; margin-left: 10px; border-radius: 2px;
}
.form-optional {
    display: inline-block; background-color: #eee; color: #666;
    font-size: 10px; padding: 2px 8px; margin-left: 10px; border-radius: 2px;
}
.form-input, .form-select, .form-textarea {
    width: 100%; padding: 15px 20px; background-color: #F9F9FB; border: 1px solid #E5E7EB;
    font-family: var(--font-jp); font-size: 16px; outline: none; transition: 0.3s;
}

/* 入力フィールドの幅調整 */
.form-input--age { width: 100px !important; }
.form-input--zip { width: 140px !important; }
.form-input--tel { width: 220px !important; }

.form-input::placeholder,
.form-select::placeholder,
.form-textarea::placeholder {
    color: #ccc;
    opacity: 1;
}

.form-input:focus, .form-select:focus, .form-textarea:focus { border-color: var(--color-accent); background-color: var(--color-white); }
.form-textarea { height: 200px; resize: vertical; }

/* --- Confirmation View --- */
.confirm-list { border-top: 1px solid #eee; }
.confirm-item {
    display: flex; padding: 30px 0; border-bottom: 1px solid #eee;
}
.confirm-item dt { width: 200px; font-weight: 700; color: var(--color-primary); font-size: 14px; }
.confirm-item dd { flex: 1; color: var(--color-text); line-height: 1.8; }

.confirm-btns { display: flex; justify-content: center; gap: 20px; }
.button--back {
    padding: 18px 40px; border: 1px solid #ddd; background: #fff;
    font-weight: 700; cursor: pointer; transition: 0.3s;
}
.button--back:hover { background: #f5f5f5; }

/* Validation */
.is-invalid { border-color: var(--color-accent) !important; }
.form-privacy { margin-top: 30px; margin-bottom: 20px; text-align: center; font-size: 14px; color: var(--color-text-light); }
.form-privacy a { color: var(--color-accent); text-decoration: underline; }

/* --- Thanks Section --- */
.thanks-section {
    padding: 100px 0 160px;
    background: var(--color-bg);
    min-height: 60vh;
}
.thanks-title {
    font-size: clamp(24px, 4vw, 32px);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 24px;
}
.thanks-text {
    font-size: 16px;
    line-height: 2.2;
    color: var(--color-text-light);
}

/* --- Responsive --- */
@media (max-width: 640px) {
		.page-header {
				padding: 90px 0 40px;
		}
		.page-header__title {
				margin-bottom: 20px;
		}
		.page-header__title span {
				margin-bottom: 10px;
		}
    .form-steps { gap: 20px; }
    .form-wrapper { padding: 40px 20px; }
    .confirm-item { flex-direction: column; gap: 10px; }
    .confirm-item dt { width: 100%; }
    .confirm-btns { flex-direction: column-reverse; }
	
    .thanks-section { padding: 60px 20px 100px; }
}