/**
 * Navメニューブロック スタイル
 */

/* Base Navigation */
.fg-nav-menu {
    position: relative;
}

.fg-nav-menu__wrapper {
    display: block;
}

/* Menu List */
.fg-nav-menu__list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
}

/* Horizontal Layout */
.fg-nav-menu--horizontal .fg-nav-menu__list {
    flex-direction: row;
    gap: 2rem;
}

/* Vertical Layout */
.fg-nav-menu--vertical .fg-nav-menu__list {
    flex-direction: column;
    gap: 0;
}

.fg-nav-menu--vertical .fg-nav-menu__item {
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

.fg-nav-menu--vertical .fg-nav-menu__item:last-child {
    border-bottom: none;
}

/* Menu Items */
.fg-nav-menu__item {
    position: relative;
}

.fg-nav-menu__link {
    display: flex;
    align-items: center;
    padding: 0.5rem 0;
    color: inherit;
    text-decoration: none;
    transition: opacity 0.3s ease;
    gap: 0.5rem;
    width: 100%;
}

/* 縦並びの開閉式の場合、リンクをクリック可能にする */
.fg-nav-menu--vertical.fg-nav-menu--dropdown .fg-nav-menu__item--dropdown .fg-nav-menu__link {
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.fg-nav-menu--vertical.fg-nav-menu--dropdown .fg-nav-menu__item--dropdown .fg-nav-menu__link:hover {
    background-color: rgba(0, 0, 0, 0.02);
}

/* 縦並びの開閉式のアイテムにアニメーション */
.fg-nav-menu--vertical.fg-nav-menu--dropdown .fg-nav-menu__item--dropdown {
    transition: background-color 0.2s ease;
}

.fg-nav-menu--vertical.fg-nav-menu--dropdown .fg-nav-menu__item--dropdown.fg-nav-menu__item--expanded {
    background-color: rgba(0, 0, 0, 0.01);
}

.fg-nav-menu__link:hover {
    opacity: 0.7;
}

/* 開閉式のリンクにホバーエフェクト */
.fg-nav-menu--dropdown .fg-nav-menu__item--dropdown .fg-nav-menu__link {
    transition: opacity 0.2s ease, color 0.2s ease, background-color 0.2s ease;
}

/* アイコン */
.fg-nav-menu__icon,
.fg-nav-menu__submenu-icon {
    flex-shrink: 0;
    line-height: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-right: 0.5rem;
    vertical-align: middle;
}

.fg-nav-menu__text {
    flex: 1;
    min-width: 0;
}

/* ドロップダウントグル */
.fg-nav-menu__toggle {
    flex-shrink: 0;
    margin-left: auto;
    line-height: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    vertical-align: middle;
    font-size: 1.2em;
    font-weight: 300;
    width: 1.2em;
    height: 1.2em;
    position: relative;
    cursor: pointer;
    color: inherit;
}

.fg-nav-menu__toggle-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1), 
                transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    line-height: 1;
    display: inline-block;
    font-size: 1em;
    color: inherit;
}

.fg-nav-menu__toggle-icon--plus {
    opacity: 1;
    transform: translate(-50%, -50%) rotate(0deg) scale(1);
}

.fg-nav-menu__toggle-icon--minus {
    opacity: 0;
    transform: translate(-50%, -50%) rotate(180deg) scale(0.8);
}

.fg-nav-menu__item--dropdown.fg-nav-menu__item--expanded .fg-nav-menu__link .fg-nav-menu__toggle .fg-nav-menu__toggle-icon--plus {
    opacity: 0;
    transform: translate(-50%, -50%) rotate(-180deg) scale(0.8);
}

.fg-nav-menu__item--dropdown.fg-nav-menu__item--expanded .fg-nav-menu__link .fg-nav-menu__toggle .fg-nav-menu__toggle-icon--minus {
    opacity: 1;
    transform: translate(-50%, -50%) rotate(0deg) scale(1);
}

/* Active State */
.fg-nav-menu__item--active .fg-nav-menu__link {
    font-weight: 600;
}

/* Submenu (Default - Hover) */
.fg-nav-menu__submenu {
    list-style: none;
    margin: 0;
    padding: 0;
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 200px;
    background: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 100;
}

/* 縦並びの場合、開閉式でない通常のサブメニューは常に表示 */
.fg-nav-menu--vertical:not(.fg-nav-menu--dropdown) .fg-nav-menu__submenu:not(.fg-nav-menu__submenu--dropdown) {
    position: static;
    box-shadow: none;
    opacity: 1;
    visibility: visible;
    transform: none;
    padding-left: 1rem;
    margin-top: 0.5rem;
}

/* 縦並びで開閉式の場合、サブメニューは非表示 */
.fg-nav-menu--vertical.fg-nav-menu--dropdown .fg-nav-menu__submenu:not(.fg-nav-menu__submenu--dropdown) {
    display: none !important;
}

.fg-nav-menu__item--has-children:hover > .fg-nav-menu__submenu:not(.fg-nav-menu__submenu--dropdown) {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* ドロップダウンが有効な場合、通常のホバー表示を無効化 */
.fg-nav-menu--dropdown .fg-nav-menu__submenu:not(.fg-nav-menu__submenu--dropdown) {
    display: none !important;
}

.fg-nav-menu__submenu .fg-nav-menu__item {
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

.fg-nav-menu__submenu .fg-nav-menu__item:last-child {
    border-bottom: none;
}

.fg-nav-menu__submenu .fg-nav-menu__link {
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Third Level */
.fg-nav-menu__submenu .fg-nav-menu__submenu {
    left: 100%;
    top: 0;
}

/* Dropdown Menu (Clickable) - 横並び用 */
.fg-nav-menu--horizontal.fg-nav-menu--dropdown .fg-nav-menu__submenu--dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 200px;
    background: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                visibility 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 100;
    max-height: 0;
    overflow: hidden;
    display: none !important;
}

/* 縦並びの開閉式（アコーディオン）スタイル */
.fg-nav-menu--vertical.fg-nav-menu--dropdown .fg-nav-menu__submenu--dropdown {
    position: static;
    box-shadow: none;
    transform: none;
    padding-left: 1.5rem;
    padding-top: 0;
    padding-bottom: 0;
    margin-top: 0;
    display: block !important;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), 
                padding-top 0.4s cubic-bezier(0.4, 0, 0.2, 1), 
                padding-bottom 0.4s cubic-bezier(0.4, 0, 0.2, 1),
                opacity 0.3s ease 0.1s;
}

/* 横並びのプルダウンメニューが展開された時 */
.fg-nav-menu--horizontal.fg-nav-menu--dropdown .fg-nav-menu__item--dropdown.fg-nav-menu__item--expanded .fg-nav-menu__submenu--dropdown {
    display: block !important;
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    max-height: 500px;
    overflow: visible;
    transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1) 0.1s,
                visibility 0.3s cubic-bezier(0.4, 0, 0.2, 1) 0.1s,
                transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 縦並びの開閉式が展開された時 */
.fg-nav-menu--vertical.fg-nav-menu--dropdown .fg-nav-menu__item--dropdown.fg-nav-menu__item--expanded .fg-nav-menu__submenu--dropdown {
    display: block !important;
    opacity: 1;
    visibility: visible;
    max-height: 2000px;
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
    margin-top: 0.5rem;
    overflow: visible;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), 
                padding-top 0.4s cubic-bezier(0.4, 0, 0.2, 1), 
                padding-bottom 0.4s cubic-bezier(0.4, 0, 0.2, 1),
                opacity 0.3s ease;
}

/* Alignment */
.fg-nav-menu--align-left .fg-nav-menu__list {
    justify-content: flex-start;
}

.fg-nav-menu--align-center .fg-nav-menu__list {
    justify-content: center;
}

.fg-nav-menu--align-right .fg-nav-menu__list {
    justify-content: flex-end;
}