/**
 * Footer Mobile Optimization
 *
 * フッターのモバイル専用スタイル
 * プロフェッショナル・可読性重視・タッチ最適化
 */

/* ==========================================================================
   Footer Main - Mobile Base
   ========================================================================== */
@media (max-width: 768px) {
    .site-footer {
        position: relative;
        background: linear-gradient(180deg, #1a1a1a 0%, #0a0a0a 100%);
        color: rgba(255, 255, 255, 0.9);
    }

    .footer-main {
        padding: 48px 0 32px;
    }

    /* 背景装飾を簡素化 */
    .footer-main::before {
        opacity: 0.5;
    }

    .decoration-circle,
    .decoration-circle-1,
    .decoration-circle-2 {
        display: none;
    }
}

@media (max-width: 480px) {
    .footer-main {
        padding: 40px 0 24px;
    }
}

/* ==========================================================================
   Footer Grid - Mobile
   ========================================================================== */
@media (max-width: 768px) {
    .footer-grid {
        display: grid;
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .footer-widgets-grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }
}

@media (max-width: 480px) {
    .footer-grid {
        gap: 24px;
    }

    .footer-widgets-grid {
        gap: 24px;
    }
}

/* ==========================================================================
   Footer Widget - Mobile
   ========================================================================== */
@media (max-width: 768px) {
    .footer-widget {
        animation: none;
    }

    .footer-title {
        font-size: 1.15rem;
        font-weight: 700;
        color: white;
        margin-bottom: 16px;
        padding-bottom: 12px;
        position: relative;
    }

    .footer-title::after {
        width: 40px;
        height: 2px;
        animation: none;
    }

    /* フッター情報ウィジェット */
    .footer-info .footer-title {
        font-size: 1.35rem;
        margin-bottom: 16px;
    }

    .footer-description {
        font-size: 0.9rem;
        line-height: 1.75;
        color: rgba(255, 255, 255, 0.7);
        margin-bottom: 20px;
    }
}

@media (max-width: 480px) {
    .footer-title {
        font-size: 1.05rem;
        margin-bottom: 14px;
        padding-bottom: 10px;
    }

    .footer-info .footer-title {
        font-size: 1.2rem;
    }

    .footer-description {
        font-size: 0.875rem;
    }
}

/* ==========================================================================
   Footer Location - Mobile
   ========================================================================== */
@media (max-width: 768px) {
    .footer-location {
        margin: 16px 0;
        padding: 14px 0;
    }

    .footer-address {
        font-size: 0.9rem;
        gap: 8px;
        margin-bottom: 6px;
    }

    .footer-address i {
        font-size: 14px;
        min-width: 18px;
    }

    .footer-full-address {
        padding-left: 26px;
        font-size: 0.85rem;
        line-height: 1.6;
    }
}

/* ==========================================================================
   Footer Menu - Mobile
   ========================================================================== */
@media (max-width: 768px) {
    .footer-menu {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 8px 16px;
        list-style: none;
        padding: 0;
        margin: 0;
    }

    .footer-menu li {
        margin-bottom: 0;
    }

    .footer-menu a {
        display: flex;
        align-items: center;
        gap: 8px;
        color: rgba(255, 255, 255, 0.7);
        text-decoration: none;
        font-size: 0.9rem;
        padding: 10px 0;
        min-height: 44px;
        transition: color 0.2s ease;
        -webkit-tap-highlight-color: transparent;
    }

    .footer-menu a::before {
        content: '';
        width: 5px;
        height: 5px;
        background: #00867b;
        border-radius: 50%;
        flex-shrink: 0;
    }

    .footer-menu a:hover,
    .footer-menu a:active {
        color: white;
        transform: none;
    }

    .footer-menu a:focus {
        outline: 2px solid #00867b;
        outline-offset: 2px;
    }
}

@media (max-width: 480px) {
    .footer-menu {
        grid-template-columns: 1fr;
        gap: 4px;
    }

    .footer-menu a {
        font-size: 0.875rem;
        padding: 8px 0;
    }
}

/* ==========================================================================
   Footer Contact - Mobile
   ========================================================================== */
@media (max-width: 768px) {
    .footer-contact {
        display: flex;
        flex-direction: column;
        gap: 12px;
    }

    .footer-phone,
    .footer-email {
        display: flex;
        align-items: center;
        gap: 10px;
        padding: 12px 14px;
        background: rgba(255, 255, 255, 0.04);
        border: 1px solid rgba(255, 255, 255, 0.1);
        border-radius: 10px;
        color: rgba(255, 255, 255, 0.8);
        text-decoration: none;
        font-size: 0.9rem;
        min-height: 48px;
        transition: all 0.2s ease;
        -webkit-tap-highlight-color: transparent;
    }

    .footer-phone i,
    .footer-email i {
        width: 18px;
        text-align: center;
        color: #00867b;
        font-size: 0.95rem;
    }

    .footer-phone:hover,
    .footer-phone:active,
    .footer-email:hover,
    .footer-email:active {
        background: rgba(255, 255, 255, 0.08);
        border-color: rgba(0, 134, 123, 0.3);
        color: white;
        transform: none;
    }

    .footer-phone:focus,
    .footer-email:focus {
        outline: 2px solid #00867b;
        outline-offset: 2px;
    }
}

@media (max-width: 480px) {
    .footer-phone,
    .footer-email {
        padding: 10px 12px;
        font-size: 0.875rem;
    }
}

/* ==========================================================================
   Footer CTA Button - Mobile
   ========================================================================== */
@media (max-width: 768px) {
    .footer-cta-button {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 100%;
        min-height: 52px;
        padding: 14px 24px;
        background: linear-gradient(135deg, #00867b, #10b981);
        color: white;
        text-decoration: none;
        border-radius: 10px;
        font-weight: 600;
        font-size: 1rem;
        gap: 10px;
        margin-top: 8px;
        box-shadow: 0 4px 16px rgba(0, 134, 123, 0.4);
        transition: all 0.2s ease;
        -webkit-tap-highlight-color: transparent;
    }

    .footer-cta-button::before {
        display: none;
    }

    .footer-cta-button:hover,
    .footer-cta-button:active {
        transform: none;
        box-shadow: 0 4px 16px rgba(0, 134, 123, 0.5);
    }

    .footer-cta-button:focus {
        outline: 2px solid white;
        outline-offset: 2px;
    }

    .footer-cta-button i {
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .footer-cta-button {
        padding: 12px 20px;
        font-size: 0.95rem;
    }
}

/* ==========================================================================
   Footer Social Links - Mobile
   ========================================================================== */
@media (max-width: 768px) {
    .footer-social {
        margin-top: 24px;
    }

    .social-links {
        display: flex;
        justify-content: flex-start;
        gap: 10px;
        list-style: none;
        padding: 0;
        margin: 0;
    }

    .social-links li {
        margin: 0;
    }

    .social-links a {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 44px;
        height: 44px;
        min-width: 44px;
        min-height: 44px;
        background: rgba(255, 255, 255, 0.06);
        border: 1px solid rgba(255, 255, 255, 0.1);
        border-radius: 50%;
        color: rgba(255, 255, 255, 0.7);
        font-size: 1rem;
        transition: all 0.2s ease;
        -webkit-tap-highlight-color: transparent;
    }

    .social-links a::before {
        display: none;
    }

    .social-links a:hover,
    .social-links a:active {
        background: #00867b;
        border-color: #00867b;
        color: white;
        transform: none;
        box-shadow: none;
    }

    .social-links a:focus {
        outline: 2px solid #00867b;
        outline-offset: 2px;
    }
}

@media (max-width: 480px) {
    .footer-social {
        margin-top: 20px;
    }

    .social-links {
        justify-content: center;
    }
}

/* ==========================================================================
   Footer Bottom - Mobile
   ========================================================================== */
@media (max-width: 768px) {
    .footer-bottom {
        padding: 20px 0;
        background: rgba(0, 0, 0, 0.3);
        border-top: 1px solid rgba(255, 255, 255, 0.05);
    }

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

    .copyright {
        font-size: 0.8rem;
        color: rgba(255, 255, 255, 0.5);
        line-height: 1.6;
        margin: 0;
    }

    .footer-bottom-links {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 10px;
    }

    .footer-bottom-links a {
        color: rgba(255, 255, 255, 0.6);
        text-decoration: none;
        font-size: 0.85rem;
        padding: 6px 0;
        min-height: 36px;
        display: flex;
        align-items: center;
        transition: color 0.2s ease;
        -webkit-tap-highlight-color: transparent;
    }

    .footer-bottom-links a::after {
        display: none;
    }

    .footer-bottom-links a:hover,
    .footer-bottom-links a:active {
        color: white;
    }

    .footer-bottom-links a:focus {
        outline: 2px solid #00867b;
        outline-offset: 2px;
    }

    .footer-bottom-links .separator {
        display: none;
    }
}

@media (max-width: 480px) {
    .footer-bottom {
        padding: 16px 0;
    }

    .copyright {
        font-size: 0.75rem;
    }

    .footer-bottom-links a {
        font-size: 0.8rem;
    }
}

/* ==========================================================================
   Scroll to Top Button - Mobile
   ========================================================================== */
@media (max-width: 768px) {
    .scroll-to-top,
    .back-to-top {
        position: fixed;
        bottom: 20px;
        right: 20px;
        width: 48px;
        height: 48px;
        min-width: 48px;
        min-height: 48px;
        display: flex;
        align-items: center;
        justify-content: center;
        background: linear-gradient(135deg, #00867b, #10b981);
        color: white;
        border: none;
        border-radius: 50%;
        font-size: 1.1rem;
        cursor: pointer;
        opacity: 0;
        visibility: hidden;
        transform: translateY(20px);
        transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
        z-index: 9999;
        box-shadow: 0 4px 16px rgba(0, 134, 123, 0.4);
        -webkit-tap-highlight-color: transparent;
    }

    .scroll-to-top.visible,
    .scroll-to-top.show,
    .back-to-top.visible {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }

    .scroll-to-top::before,
    .back-to-top::before {
        display: none;
    }

    .scroll-to-top:hover,
    .scroll-to-top:active,
    .back-to-top:hover,
    .back-to-top:active {
        transform: translateY(0);
        box-shadow: 0 4px 16px rgba(0, 134, 123, 0.5);
    }

    .scroll-to-top:focus,
    .back-to-top:focus {
        outline: 2px solid white;
        outline-offset: 2px;
    }
}

@media (max-width: 480px) {
    .scroll-to-top,
    .back-to-top {
        bottom: 16px;
        right: 16px;
        width: 44px;
        height: 44px;
        min-width: 44px;
        min-height: 44px;
        font-size: 1rem;
    }
}

/* ==========================================================================
   Touch Device Optimizations
   ========================================================================== */
@media (hover: none) and (pointer: coarse) {
    .footer-menu a:hover,
    .footer-phone:hover,
    .footer-email:hover,
    .footer-cta-button:hover,
    .social-links a:hover,
    .footer-bottom-links a:hover,
    .scroll-to-top:hover,
    .back-to-top:hover {
        transform: none;
        box-shadow: inherit;
    }

    /* アクティブ状態のフィードバック */
    .footer-menu a:active,
    .footer-phone:active,
    .footer-email:active,
    .footer-cta-button:active,
    .social-links a:active,
    .footer-bottom-links a:active {
        opacity: 0.85;
    }
}

/* ==========================================================================
   Reduced Motion
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
    .footer-widget,
    .footer-title::after,
    .social-links a,
    .scroll-to-top,
    .back-to-top {
        animation: none !important;
        transition: none !important;
    }

    .decoration-circle {
        animation: none !important;
    }
}

/* ==========================================================================
   Accessibility
   ========================================================================== */
@media (max-width: 768px) {
    /* 十分なコントラスト */
    .footer-description,
    .footer-menu a,
    .footer-phone,
    .footer-email {
        color: rgba(255, 255, 255, 0.75);
    }

    /* フォーカスリング */
    .site-footer a:focus-visible,
    .site-footer button:focus-visible {
        outline: 3px solid #00867b;
        outline-offset: 3px;
    }
}

/* ==========================================================================
   Print Styles
   ========================================================================== */
@media print {
    .site-footer {
        background: white !important;
        color: black !important;
        padding: 20px 0;
    }

    .scroll-to-top,
    .back-to-top,
    .footer-social,
    .footer-cta-button,
    .decoration-circle {
        display: none !important;
    }

    .footer-menu a,
    .footer-bottom-links a {
        color: black !important;
    }
}