/*
===============================================
Shinka AI - Header Component
ヘッダーコンポーネント
===============================================
*/

/* ========================================
   サイトヘッダー
   ======================================== */

   .c-site-header {
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    background-color: transparent;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    border-bottom: none;
    transition: all var(--transition-base);
}

.c-site-header--scrolled {
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

/* ========================================
   ヘッダーコンテナ
   ======================================== */

.c-site-header__container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-xl);
    max-width: var(--container-width);
    margin: 0 auto;
    padding-top: 30px;
}

/* ========================================
   ロゴ
   ======================================== */

.c-site-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 24px;
    font-weight: 700;
    color: #4795E7;
    text-decoration: none;
    letter-spacing: 2px;
    transition: opacity var(--transition-base);
}

.c-site-logo:hover {
    opacity: 0.8;
    color: #4795E7;
}

.c-site-logo a {
    color: #4795E7;
    text-decoration: none;
}

.c-site-logo a:hover {
    color: #4795E7;
    opacity: 0.8;
}

.c-site-logo__image {
    height: 48px;
    width: auto;
}

/* カスタムロゴのラッパー */
.custom-logo-link {
    display: flex;
    align-items: center;
    color: #4795E7;
    text-decoration: none;
    transition: opacity var(--transition-base);
}

.custom-logo-link:hover {
    opacity: 0.8;
    color: #4795E7;
}

.custom-logo {
    height: 48px;
    width: auto;
}

/* ========================================
   ナビゲーション
   ======================================== */

.c-main-nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.c-main-nav__menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    list-style: none;
    padding: 0;
    margin: 0;
}

.c-main-nav__item {
    position: relative;
}

.c-main-nav__link {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: var(--spacing-sm) 0;
    font-size: 15px;
    font-weight: 500;
    color: #000000;
    text-decoration: none;
    transition: color var(--transition-base);
}

/* メニューアイテムのグラデーション効果 */
.c-main-nav__menu .c-main-nav__item:nth-child(1) .c-main-nav__link,
.c-main-nav__menu .menu-item:nth-child(1) a {
    color: #4795E7;
}

.c-main-nav__menu .c-main-nav__item:nth-child(2) .c-main-nav__link,
.c-main-nav__menu .menu-item:nth-child(2) a {
    color: #5A8FE8;
}

.c-main-nav__menu .c-main-nav__item:nth-child(3) .c-main-nav__link,
.c-main-nav__menu .menu-item:nth-child(3) a {
    color: #6B89E9;
}

.c-main-nav__menu .c-main-nav__item:nth-child(4) .c-main-nav__link,
.c-main-nav__menu .menu-item:nth-child(4) a {
    color: #7C83EA;
}

.c-main-nav__menu .c-main-nav__item:nth-child(5) .c-main-nav__link,
.c-main-nav__menu .menu-item:nth-child(5) a {
    color: #8D7DEB;
}

.c-main-nav__menu .c-main-nav__item:nth-child(6) .c-main-nav__link,
.c-main-nav__menu .menu-item:nth-child(6) a {
    color: #9E77EC;
}

.c-main-nav__menu .c-main-nav__item:nth-child(7) .c-main-nav__link,
.c-main-nav__menu .menu-item:nth-child(7) a {
    color: #AF71ED;
}

.c-main-nav__menu .c-main-nav__item:nth-child(8) .c-main-nav__link,
.c-main-nav__menu .menu-item:nth-child(8) a {
    color: #C06B7A;
}

.c-main-nav__menu .c-main-nav__item:nth-child(9) .c-main-nav__link,
.c-main-nav__menu .menu-item:nth-child(9) a {
    color: #CA6779;
}

.c-main-nav__link:hover {
    color: #FF6B6B;
}

/* ドロップダウンインジケーター */
.menu-item-has-children > a::after {
    content: '';
    display: inline-block;
    width: 8px;
    height: 6px;
    margin-left: 4px;
    vertical-align: middle;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 8 6'%3E%3Cpath d='M1 1L4 4L7 1' stroke='%234795E7' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
}

/* ========================================
   ドロップダウンメニュー
   ======================================== */

.c-main-nav__item--has-dropdown,
.menu-item-has-children {
    position: relative;
}

.c-main-nav__dropdown,
.sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    background-color: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.05);
    border-radius: var(--border-radius-md);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    list-style: none;
    padding: var(--spacing-sm) 0;
    margin: var(--spacing-xs) 0 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-base);
}

.c-main-nav__item--has-dropdown:hover .c-main-nav__dropdown,
.menu-item-has-children:hover .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.c-main-nav__dropdown-item,
.sub-menu li {
    padding: 0;
}

.c-main-nav__dropdown-link,
.sub-menu a {
    display: block;
    padding: var(--spacing-sm) var(--spacing-lg);
    color: #000000;
    text-decoration: none;
    font-size: 14px;
    transition: all var(--transition-base);
}

.c-main-nav__dropdown-link:hover,
.sub-menu a:hover {
    background-color: rgba(255, 107, 107, 0.05);
    color: #FF6B6B;
}

/* ========================================
   ヘッダーアクション
   ======================================== */

.c-header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

/* お問い合わせボタン（#CA6779） */
.c-header-actions .c-button--primary {
    background: #CA6779;
    border: none;
    border-radius: 50px;
    padding: 12px 28px;
    font-size: 14px;
    font-weight: 600;
    color: white;
    box-shadow: 0 4px 12px rgba(202, 103, 121, 0.3);
}

.c-header-actions .c-button--primary:hover {
    background: #B85A6B;
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(202, 103, 121, 0.4);
}

/* 言語切替 */
.c-header-lang-switch {
    font-size: 14px;
    font-weight: 500;
    color: #ffffff;
    background-color: #CA6779;
    padding: 8px 12px;
    border-radius: 50%;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: 0 2px 8px rgba(202, 103, 121, 0.3);
}

.c-header-lang-switch:hover {
    background-color: #B85A6B;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(202, 103, 121, 0.4);
}

/* ========================================
   モバイルメニュートグル
   ======================================== */

.c-mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    padding: 0;
    background: none;
    border: none;
    cursor: pointer;
}

/* ========================================
   モバイルメニュー閉じるボタン
   ======================================== */

.c-mobile-menu-close {
    display: none;
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 40px;
    height: 80px;
    padding: 0;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 10;
    align-items: center;
    justify-content: center;
}

.c-mobile-menu-close__icon {
    font-size: 32px;
    line-height: 1;
    color: #ffffff;
    font-weight: 300;
    transition: opacity var(--transition-base);
}

.c-mobile-menu-close:hover .c-mobile-menu-close__icon {
    opacity: 0.7;
}

.c-mobile-menu-toggle__line {
    width: 24px;
    height: 2px;
    background-color: #000000;
    transition: all var(--transition-base);
}

.c-mobile-menu-toggle__line:not(:last-child) {
    margin-bottom: 6px;
}

/* メニューが開いている状態 */
.c-mobile-menu-toggle--active .c-mobile-menu-toggle__line:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.c-mobile-menu-toggle--active .c-mobile-menu-toggle__line:nth-child(2) {
    opacity: 0;
}

.c-mobile-menu-toggle--active .c-mobile-menu-toggle__line:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* ========================================
   レスポンシブ
   ======================================== */

@media (max-width: 1200px) {
    .c-site-header__container {
        padding: var(--spacing-sm) var(--spacing-lg);
    }
    
    .c-main-nav__menu {
        gap: var(--spacing-lg);
    }
}

@media (max-width: 1024px) {
    .c-main-nav__menu {
        gap: var(--spacing-md);
    }
    
    .c-main-nav__link {
        font-size: 14px;
    }
}

@media (max-width: 767px) {
    .c-site-header__container {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .c-mobile-menu-toggle {
        display: flex;
    }
    
    .c-main-nav {
        position: fixed;
        top: 0;
        right: 0;
        width: 100vw;
        height: 100vh;
        background-color: rgba(0, 0, 0, 0.8);
        box-shadow: -2px 0 10px rgba(0, 0, 0, 0.1);
        transform: translateX(100%);
        transition: transform var(--transition-base);
        overflow-y: auto;
        z-index: var(--z-modal);
        flex-direction: column;
        align-items: flex-start;
        padding: var(--spacing-2xl) var(--spacing-lg);
    }
    
    .c-main-nav--open {
        transform: translateX(0);
        padding-top: 80px;
    }
    
    .c-main-nav--open .c-mobile-menu-close {
        display: flex;
    }
    
    .c-main-nav__menu {
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
        width: 100%;
        padding: 0;
    }
    
    .c-main-nav__item {
        width: 100%;
        border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    }
    
    .c-main-nav__link {
        padding: var(--spacing-lg) var(--spacing-xl);
        width: 100%;
        font-size: 18px;
    }
    
    .menu-item a {
        font-size: 18px;
    }
    
    .c-main-nav__dropdown,
    .sub-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: none;
        border-top: 1px solid rgba(0, 0, 0, 0.05);
        border-radius: 0;
        margin: 0;
        padding: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height var(--transition-base);
        background-color: transparent;
    }
    
    .c-main-nav__item--has-dropdown.is-open .c-main-nav__dropdown,
    .menu-item-has-children.is-open .sub-menu {
        max-height: 500px;
    }
    
    .c-main-nav__dropdown-link,
    .sub-menu a {
        padding: var(--spacing-md) var(--spacing-xl);
        font-size: 16px;
    }
    
    .c-header-actions {
        flex-direction: column;
        width: 100%;
        padding: var(--spacing-lg);
        gap: var(--spacing-sm);
    }
    
    .c-header-actions .c-button {
        width: 100%;
        justify-content: center;
    }
    
    .c-header-lang-switch {
        width: 100%;
        text-align: center;
        padding: var(--spacing-sm);
    }
}

/* モバイルメニューオーバーレイ */
.c-mobile-menu-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: var(--z-modal-backdrop);
}

@media (max-width: 767px) {
    .c-mobile-menu-overlay--active {
        display: block;
    }
    
    /* モバイルメニューが開いている時の横スクロール防止 */
    body.no-scroll,
    html.no-scroll {
        overflow-x: hidden;
        overflow-y: hidden;
        position: fixed;
        width: 100%;
        height: 100%;
    }
    
    /* サイトラッパーの横スクロール防止 */
    .c-site-wrapper {
        overflow-x: hidden;
        max-width: 100vw;
    }
    
    /* ページ全体の横スクロール防止 */
    html {
        overflow-x: hidden;
        max-width: 100%;
    }
    
    body {
        overflow-x: hidden;
        max-width: 100%;
    }
}