/* ========================================
   モバイルメニューシステム
   ======================================== */

/* モバイルメニュー本体 */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    z-index: var(--mobile-menu-z-index);
    display: flex;
    justify-content: flex-end;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s ease;
}

.mobile-menu:not([hidden]) {
    opacity: 1;
    visibility: visible;
}

.mobile-menu-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
}

.mobile-menu-content {
    position: relative;
    width: 320px;
    height: 100%;
    background: linear-gradient(180deg, var(--bg-cream) 0%, var(--bg-sage) 100%);
    padding: var(--space-xl);
    overflow-y: auto;
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.2);
    transform: translateX(100%);
    transition: transform 0.4s ease;
}

.mobile-menu:not([hidden]) .mobile-menu-content {
    transform: translateX(0);
}

/* ========================================
   モバイルメニューヘッダー
   ======================================== */
.mobile-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-2xl);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid rgba(143, 188, 143, 0.3);
}

.mobile-logo .custom-logo {
    max-height: 50px;
}

.mobile-site-title {
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--text);
    letter-spacing: 1px;
}

.mobile-menu-close {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.9);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.mobile-menu-close:hover {
    background: var(--primary);
    color: white;
    transform: rotate(90deg);
}

.close-icon {
    font-size: 1.5rem;
    font-weight: 300;
}

/* ========================================
   モバイルナビゲーション
   ======================================== */
.mobile-navigation {
    margin-bottom: var(--space-2xl);
}

.mobile-nav-menu {
    list-style: none;
    margin: 0;
    padding: 0;
}

.mobile-nav-menu li {
    margin-bottom: var(--space-sm);
}

.mobile-nav-menu a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) var(--space-lg);
    color: var(--text);
    text-decoration: none;
    background: rgba(255, 255, 255, 0.7);
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
    font-weight: 400;
    letter-spacing: 0.5px;
}

.mobile-nav-menu a:hover {
    background: rgba(255, 255, 255, 0.9);
    transform: translateX(5px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

/* ========================================
   サブメニュー
   ======================================== */
.mobile-sub-menu {
    list-style: none;
    margin: var(--space-sm) 0 0 0;
    padding: 0;
    background: rgba(255, 255, 255, 0.5);
    border-radius: var(--radius-md);
    overflow: hidden;
    max-height: 0;
    transition: max-height 0.3s ease;
}

.mobile-sub-menu.is-open {
    max-height: 300px;
}

.mobile-sub-menu a {
    padding: var(--space-sm) var(--space-lg);
    font-size: 0.9rem;
    background: transparent;
    border-radius: 0;
}

.submenu-toggle {
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-xs);
    color: var(--text-soft);
    transition: all 0.3s ease;
}

.submenu-icon {
    font-size: 1.2rem;
    transition: transform 0.3s ease;
}

.submenu-toggle[aria-expanded="true"] .submenu-icon {
    transform: rotate(45deg);
}

/* ========================================
   モバイルCTA
   ======================================== */
.mobile-cta {
    margin-bottom: var(--space-2xl);
}

.mobile-cta-btn {
    width: 100%;
    justify-content: center;
    padding: var(--space-lg);
    font-size: 1.1rem;
    font-weight: 600;
}

/* ========================================
   モバイルSNS
   ======================================== */
.mobile-social {
    text-align: center;
}

.mobile-social-title {
    font-size: 1rem;
    color: var(--text);
    margin-bottom: var(--space-lg);
    font-style: italic;
    font-weight: 300;
}

.mobile-social-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.mobile-social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    background: rgba(255, 255, 255, 0.8);
    color: var(--text);
    text-decoration: none;
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.mobile-social-link:hover {
    background: var(--primary);
    color: white;
    transform: scale(1.05);
}

/* ========================================
   モバイルメニューが開いている時のボディ
   ======================================== */
body.mobile-menu-open {
    overflow: hidden;
}

/* ========================================
   レスポンシブ対応
   ======================================== */
@media (max-width: 480px) {
    .mobile-menu-content {
        width: 100%;
        max-width: 300px;
        padding: var(--space-lg);
    }
}

@media (max-width: 360px) {
    .mobile-menu-content {
        width: 100%;
        max-width: 280px;
        padding: var(--space-md);
    }
}