/* ヘッダーのスタイル */
.header {
    background-color: #fff;
    color: #333;
    padding: 15px 0;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    margin: 0 auto;
    padding: 0 40px;
}

.logo-container {
    display: flex;
    align-items: center;
    white-space: nowrap;
    flex-shrink: 0;
}

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: #333;
    font-weight: bold;
    white-space: nowrap;
}

.logo-image {
    height: 50px;
    width: auto;
    margin-right: 10px;
    opacity: 1 !important;
    transform: translateY(0) !important;
}

.company-name {
    font-size: 1.2rem;
    font-weight: bold;
    white-space: nowrap;
}

.nav {
    margin-left: auto;
    padding-left: 40px;
}

/* ナビゲーション基本スタイル */
.nav__items {
    display: flex;
    list-style: none;
    align-items: center;
    margin: 0;
    padding: 0;
    gap: 20px;
    flex-wrap: nowrap;
}

.nav__items li a {
    text-decoration: none;
    color: #333;
    font-weight: 700;
    font-size: 0.9rem;
    transition: color 0.3s ease;
    white-space: nowrap;
    padding: 10px 20px;
}

.nav__items li a:hover {
    color: #007BFF;
}

.contact-button {
    margin-left: 15px;
}

.btn-contact {
    background-color: #333;
    color: #fff !important;
    padding: 8px 25px;
    border-radius: 5px;
    font-size: 0.9rem;
    transition: background-color 0.3s ease;
}

.btn-contact:hover {
    background-color: #000;
}

.coming-soon {
    cursor: not-allowed;
    opacity: 0.7;
}

/* レスポンシブ対応 - デスクトップからタブレット */
@media (max-width: 1670px) {
    .nav__items {
        gap: 18px;
    }

    .nav__items li a {
        font-size: 0.87rem;
        padding: 8px 14px;
    }
}

@media (max-width: 1580px) {
    .header-container {
        padding: 0 30px;
    }

    .nav {
        padding-left: 30px;
    }

    .nav__items {
        gap: 15px;
    }

    .nav__items li a {
        font-size: 0.85rem;
        padding: 8px 12px;
    }

    .btn-contact {
        padding: 8px 18px;
    }
}

@media (max-width: 1200px) {
    .header-container {
        padding: 0 25px;
    }

    .nav {
        padding-left: 25px;
    }

    .nav__items {
        gap: 12px;
    }

    .nav__items li a {
        font-size: 0.8rem;
        padding: 8px 10px;
    }

    .btn-contact {
        padding: 8px 15px;
    }
}

@media (max-width: 1000px) {
    .header-container {
        padding: 0 20px;
    }

    .nav {
        padding-left: 20px;
    }

    .nav__items {
        gap: 8px;
    }

    .nav__items li a {
        font-size: 0.75rem;
        padding: 6px 8px;
    }

    .btn-contact {
        padding: 6px 12px;
    }

    .company-name {
        font-size: 0.8rem;
    }
}

/* モバイルナビゲーション */
@media (max-width: 768px) {
    /* デスクトップナビゲーションを非表示 */
    .nav {
        display: none;
    }

    /* モバイルメニューのナビゲーション */
    .mobile-nav .nav__items {
        flex-direction: column;
        padding: 80px 30px;
        /* gap: 20px; */
        align-items: flex-start;
    }

    .mobile-nav .nav__items li {
        width: 60%;
    }

    .mobile-nav .nav__items li a {
        font-size: 0.9rem;
        padding: 8px 16px;
        display: block;
    }

    .mobile-nav .contact-button {
        margin: 20px 0 0 0;
        width: 100%;
    }

    .mobile-nav .contact-button .btn-contact {
        display: block;
        text-align: center;
        width: 100%;
    }

    .menu-icon {
        position: fixed;
        bottom: 20px;
        left: 20px;
        width: 30px;
        height: 30px;
        cursor: pointer;
        z-index: 1001;
        display: block;
    }
}

/* モバイルメニューの表示制御 */
.mobile-menu-container {
    display: none;
}

@media (max-width: 768px) {
    .mobile-menu-container {
        display: block;
    }

    .menu-icon {
        position: fixed;
        bottom: 20px;
        left: 20px;
        width: 30px;
        height: 30px;
        cursor: pointer;
        z-index: 1001;
    }

    .mobile-nav {
        position: fixed;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100vh;
        background-color: #fff;
        z-index: 1000;
        transition: transform 0.3s ease;
    }

    .mobile-nav.active {
        transform: translateX(100%);
    }

    .mobile-nav .nav__items {
        flex-direction: column;
        padding: 80px 20px;
        gap: 0px;
    }

    .mobile-nav .contact-button {
        margin: 20px 0 0 0;
    }

    .menu-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-color: rgba(0, 0, 0, 0.5);
        z-index: 999;
    }

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

/* メニューアイコンの基本スタイル */
.menu-icon {
    display: none;
    width: 28.9px;
    height: 45.2px;
    scale: 1.8;
    position: fixed;
    bottom: 20px;
    left: 20px;
    z-index: 25000;
    cursor: pointer;
    transform: none;
    opacity: 1 !important;
    transition: none;
    will-change: auto;
}

.menu-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transform: none;
    opacity: 1 !important;
    transition: none;
    will-change: auto;
}

/* オーバーレイ */
.menu-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    background-color: var(--overlay-color);
    z-index: 20000;
    opacity: 0;
    transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    backdrop-filter: blur(8px);
}

.menu-overlay.active {
    display: block;
    opacity: 1;
} 




/* スマホサイズでヘッダーを非表示 */
@media screen and (max-width: 767px) {
    .header {
        display: none;
    }
}

/* スマホサイズでメニューボタンを表示 */
@media screen and (max-width: 767px) {
    .menu-icon {
        display: block;
    }
    
    .nav {
        z-index: 9998;
    }
    
    .overlay {
        z-index: 9997;
    }
}

.mobile-menu-container {
    display: none;
}

@media (max-width: 767px) {
    .mobile-menu-container {
        display: block;
    }

    .mobile-nav {
        position: fixed;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100vh;
        background-color: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(10px);
        transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
        z-index: 10000;
        display: flex;
        justify-content: center;
        align-items: center;
    }

    .mobile-nav.active {
        transform: translateX(100%);
    }

    .mobile-nav .nav__items {
        flex-direction: column;
        align-items: center;
        width: 60%;
        padding: 2rem;
        list-style: none;
        margin: 0;
    }

    .mobile-nav .nav__items li {
        width: 100%;
        text-align: center;
        padding: 0.8rem 0;
        opacity: 0;
        transform: translateY(40px);
        transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
        position: relative;
        overflow: hidden;
        border: none;
    }

    .mobile-nav .nav__items li a {
        text-decoration: none;
        color: #333;
        font-weight: 600;
        font-size: 1rem;
        display: inline-block;
        padding: 0.5rem 1rem;
        letter-spacing: 0.15em;
        opacity: 0;
        transform: translateY(30px);
        transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
        position: relative;
    }

    .mobile-nav .nav__items li a::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 0;
        width: 100%;
        height: 1px;
        background: linear-gradient(90deg, 
            transparent 0%, 
            #333 20%, 
            #333 80%, 
            transparent 100%
        );
        transform: scaleX(0);
        transform-origin: center;
        transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .mobile-nav.active .nav__items li a::after {
        transform: scaleX(1);
        transition-delay: 0.2s;
    }

    /* メニューがアクティブになったときの各項目のディレイ */
    .mobile-nav.active .nav__items li:nth-child(1) { 
        transition-delay: 0.1s;
    }
    .mobile-nav.active .nav__items li:nth-child(2) { 
        transition-delay: 0.2s;
    }
    .mobile-nav.active .nav__items li:nth-child(3) { 
        transition-delay: 0.3s;
    }

    .mobile-nav.active .nav__items li:nth-child(1) a {
        transition-delay: 0.2s;
    }
    .mobile-nav.active .nav__items li:nth-child(2) a {
        transition-delay: 0.3s;
    }
    .mobile-nav.active .nav__items li:nth-child(3) a {
        transition-delay: 0.4s;
    }

    .mobile-nav.active .nav__items li {
        opacity: 1;
        transform: translateY(0);
    }

    .mobile-nav.active .nav__items li a {
        opacity: 1;
        transform: translateY(0);
    }

    .menu-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        width: 100%;
        height: 100%;
        background-color: rgba(0, 0, 0, 0.2);
        z-index: 9999;
        opacity: 0;
        transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1);
        backdrop-filter: blur(8px);
    }

    .menu-overlay.active {
        display: block;
        opacity: 1;
    }
}