/* ============================================
   13 - Footer
   ─────────────────────────────────────────────
   ヘッダーの濃紺ガラスと連動するダーク系フッター
   蒼×水色グラデをアクセントに使い
   Hero / Header と同じ配色軸でサイトを締める
   ============================================ */

/* ─────────────────────────────────────────────
   ベース
───────────────────────────────────────────── */
.footer {
    position: relative;
    background: rgba(0, 20, 210);
    color: white;
    overflow: hidden;
}

/* ─────────────────────────────────────────────
   上部グラデーションボーダーライン
───────────────────────────────────────────── */
.footer-top-border {
    height: 2px;
    background: rgba(255, 255, 255, 0.15);
}

/* ─────────────────────────────────────────────
   メインコンテンツ
───────────────────────────────────────────── */
.footer-main {
    position: relative;
    z-index: 1;
    padding: 72px 0 48px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.1fr 1.6fr 1fr;
    gap: 64px;
    align-items: start;
    margin-bottom: 64px;
}

/* ─────────────────────────────────────────────
   ロゴ・タグライン
───────────────────────────────────────────── */
.footer-logo-section {
    display: flex;
    flex-direction: column;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 18px;
    text-decoration: none;
}

.footer-logo-img {
    width: 44px;
    height: 44px;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.30);
    transition: opacity 0.25s ease, transform 0.25s ease;
}
.footer-logo:hover .footer-logo-img {
    opacity: 0.85;
    transform: scale(1.04);
}

/* logo-text: ロゴ画像にテキスト含まれるので非表示 */
.footer-logo .logo-text {
    display: none;
}

.footer-tagline {
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.75;
    max-width: 260px;
    margin-bottom: 28px;
}

/* SNS アイコン行 */
.footer-social {
    display: flex;
    gap: 12px;
    margin-top: auto;
}

.footer-social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: rgba(255, 255, 255, 0.7);
    transition: all 0.25s ease;
    text-decoration: none;
}
.footer-social-link:hover {
    background: rgba(255, 255, 255, 0.20);
    border-color: rgba(255, 255, 255, 0.45);
    color: white;
    transform: translateY(-2px);
}
.footer-social-link svg {
    width: 16px;
    height: 16px;
    fill: currentColor;
}

/* ─────────────────────────────────────────────
   ナビゲーション
───────────────────────────────────────────── */
.footer-nav {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.footer-nav-title {
    font-family: var(--font-body);
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 12px;
}

/* タイトル下の短いライン */
.footer-nav-title::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 24px; height: 1.5px;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 1px;
}

.footer-nav-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    list-style: none;
    padding: 0;
}

.footer-nav-list a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9375rem;
    font-weight: 400;
    text-decoration: none;
    transition: all 0.22s ease;
    position: relative;
}

/* ホバー時: 水色ドット + 右シフト */
.footer-nav-list a::before {
    content: '';
    width: 4px; height: 4px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.6);
    flex-shrink: 0;
    opacity: 0;
    transform: scale(0);
    transition: all 0.22s ease;
}
.footer-nav-list a:hover {
    color: white;
    padding-left: 4px;
}
.footer-nav-list a:hover::before {
    opacity: 1;
    transform: scale(1);
}

/* ─────────────────────────────────────────────
   お問い合わせ CTA
───────────────────────────────────────────── */
.footer-cta-section {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.footer-cta-label {
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 4px;
}

.footer-cta-text {
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
}

.footer-cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    background: white;
    color: var(--primary-blue-dark);
    font-weight: 700;
    font-size: 0.9375rem;
    font-family: var(--font-body);
    border-radius: 6px;
    text-decoration: none;
    transition: all 0.25s ease;
    align-self: flex-start;
    position: relative;
    overflow: hidden;
}
.footer-cta-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: #E8F0FF;
    opacity: 0;
    transition: opacity 0.25s;
}
.footer-cta-btn:hover::before { opacity: 1; }
.footer-cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.28);
}
.footer-cta-btn span,
.footer-cta-btn svg { position: relative; z-index: 1; }
.footer-cta-btn .btn-arrow { transition: transform 0.22s ease; }
.footer-cta-btn:hover .btn-arrow { transform: translateX(4px); }

/* ─────────────────────────────────────────────
   ボトムバー
───────────────────────────────────────────── */
.footer-bottom {
    position: relative;
    z-index: 1;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 0 28px;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.copyright {
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.45);
    letter-spacing: 0.02em;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 24px;
}

.footer-link {
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    transition: color 0.2s ease;
}
.footer-link:hover { color: rgba(255, 255, 255, 0.88); }

/* ─────────────────────────────────────────────
   Responsive
───────────────────────────────────────────── */
@media (max-width: 1024px) {
    .footer-content {
        grid-template-columns: 1fr 1.4fr;
        gap: 48px;
    }
    .footer-cta-section { display: none; } /* タブレットでは非表示 */
}

@media (max-width: 768px) {
    .footer-main { padding: 56px 0 40px; }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
        margin-bottom: 40px;
    }

    .footer-tagline { max-width: 100%; }

    .footer-nav { grid-template-columns: repeat(2, 1fr); gap: 32px; }

    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .footer-nav { grid-template-columns: 1fr; gap: 28px; }
}