/* ============================================
   custom-mobile-nav.css
   保存場所: /wp-content/themes/matsukawa/css/custom-mobile-nav.css
============================================ */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* ============================================
   ヘッダー・ナビゲーション共通スタイル
============================================ */
.matsukawa-header {
    background-color: #fff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-size: 24px;
    font-weight: bold;
    color: #2c3e50;
    text-decoration: none;
}

.logo:hover {
    color: #3498db;
}

/* ============================================
   デスクトップナビゲーション
============================================ */
.desktop-nav {
    display: flex;
    flex: 1;
    justify-content: center;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-menu li {
    display: inline;
}

.nav-menu a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    padding: 8px 0;
    border-bottom: 2px solid transparent;
    transition: all 0.3s ease;
    display: block;
}

.nav-menu a:hover,
.nav-menu a:focus {
    color: #3498db;
    border-bottom-color: #3498db;
}

.phone-contact {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #e74c3c;
    font-weight: bold;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

.phone-contact:hover {
    color: #c0392b;
}

/* ============================================
   ハンバーガーメニュー（スマホ用）
============================================ */
.hamburger-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    z-index: 1001;
}

.hamburger-btn span {
    width: 25px;
    height: 3px;
    background-color: #333;
    border-radius: 2px;
    transition: all 0.3s ease;
    display: block;
}

.hamburger-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.hamburger-btn.active span:nth-child(2) {
    opacity: 0;
}

.hamburger-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* ============================================
   モバイルメニュー
============================================ */
.mobile-menu {
    display: none;
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #fff;
    z-index: 999;
    overflow-y: auto;
    animation: slideIn 0.3s ease;
}

.mobile-menu.active {
    display: block;
}

@keyframes slideIn {
    from {
        transform: translateX(-100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.mobile-menu ul {
    list-style: none;
    padding: 20px 0;
    margin: 0;
}

.mobile-menu li {
    border-bottom: 1px solid #ecf0f1;
    display: list-item;
}

.mobile-menu a {
    display: block;
    padding: 15px 20px;
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: background-color 0.2s ease;
}

.mobile-menu a:active,
.mobile-menu a:hover {
    background-color: #ecf0f1;
}

.mobile-menu-phone {
    padding: 20px;
    background-color: #fff3cd;
    border-top: 2px solid #ffc107;
    margin-top: 10px;
}

.mobile-menu-phone a {
    color: #e74c3c;
    font-size: 16px;
    padding: 10px 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

/* ============================================
   ページトップボタン
============================================ */
.page-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    background-color: #3498db;
    border-radius: 50%;
    display: none;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 900;
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
    border: none;
    padding: 0;
}

.page-top.show {
    display: flex;
}

.page-top:hover {
    background-color: #2980b9;
    transform: scale(1.1);
}

.page-top i {
    color: #fff;
    font-size: 20px;
}

/* ============================================
   メディアクエリ（レスポンシブ）
============================================ */

/* タブレット＆スマホ */
@media (max-width: 768px) {
    .hamburger-btn {
        display: flex;
    }

    .desktop-nav {
        display: none;
    }

    .phone-contact {
        display: none;
    }

    .header-container {
        padding: 10px 15px;
    }

    .logo {
        font-size: 18px;
    }

    .nav-menu {
        gap: 15px;
        flex-direction: column;
    }
}

/* 小さなスマホ */
@media (max-width: 480px) {
    .header-container {
        padding: 8px 10px;
    }

    .logo {
        font-size: 16px;
    }

    .mobile-menu {
        top: 50px;
    }

    .page-top {
        width: 45px;
        height: 45px;
        bottom: 15px;
        right: 15px;
    }

    .page-top i {
        font-size: 18px;
    }
}

/* アクセシビリティ */
@media (prefers-reduced-motion: reduce) {
    .hamburger-btn span,
    .page-top,
    .mobile-menu {
        transition: none;
    }
}