/**
 * Layout CSS - ヘッダー・フッター・メインレイアウト
 *
 * @package Morikawa_Modern
 */

/* ========================================
   ヘッダー
======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 15px 20px;
    background-color: rgba(12, 83, 156, 0.85);
    backdrop-filter: blur(10px);
    z-index: var(--z-header);
    transition: background-color 0.2s ease;
}

.header.is-scrolled {
    background-color: rgba(12, 83, 156, 0.95);
}

@media (max-width: 767px) {
    .header {
        padding: 10px 15px;
    }
}

.header__inner {
    max-width: var(--container-max);
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 40px;
}

@media (max-width: 767px) {
    .header__inner {
        gap: 0;
    }
}

/* ロゴ */
.header__logo a {
    display: block;
    line-height: 1;
}

.header__logo img {
    width: 180px;
    height: auto;
}

@media (max-width: 767px) {
    .header__logo img {
        width: 140px;
    }
}

/* PCナビゲーション */
.header__nav {
    margin-left: auto;
}

@media (max-width: 1023px) {
    .header__nav {
        display: none;
    }
}

.nav-list {
    display: flex;
    gap: 25px;
}

.nav-list__item {
    position: relative;
}

.nav-list__item > a {
    display: block;
    padding: 10px 0;
    color: var(--color-text-white);
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: opacity var(--transition-fast);
}

.nav-list__item > a:hover {
    opacity: 0.8;
    color: var(--color-text-white);
}

/* サブメニュー */
.nav-list__item.has-children > a::after {
    content: "";
    display: inline-block;
    width: 6px;
    height: 6px;
    margin-left: 6px;
    border-right: 1px solid currentColor;
    border-bottom: 1px solid currentColor;
    transform: translateY(-2px) rotate(45deg);
    transition: transform var(--transition-fast);
}

.nav-list__item.has-children:hover > a::after {
    transform: translateY(2px) rotate(-135deg);
}

.nav-list__sub {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    min-width: 220px;
    padding-top: 10px;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-fast), visibility var(--transition-fast);
}

.nav-list__item.has-children:hover .nav-list__sub {
    opacity: 1;
    visibility: visible;
}

.nav-list__sub li {
    background-color: var(--color-bg);
}

.nav-list__sub li a {
    display: block;
    padding: 12px 15px;
    color: var(--color-text);
    font-size: var(--font-size-sm);
    border-bottom: 1px solid var(--color-border);
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.nav-list__sub li a:hover {
    background-color: var(--color-primary);
    color: var(--color-text-white);
}

.nav-list__sub li:last-child a {
    border-bottom: none;
}

/* ヘッダーCTA */
.header__cta {
    display: flex;
    align-items: center;
    gap: 20px;
}

@media (max-width: 1023px) {
    .header__cta {
        display: none;
    }
}

.header__tel {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--color-text-white);
    font-size: var(--font-size-lg);
    font-weight: 700;
}

.header__tel:hover {
    color: var(--color-text-white);
    opacity: 0.8;
}

.header__contact {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    font-size: var(--font-size-sm);
}

/* モバイルヘッダー */
.header__mobile {
    display: none;
    margin-left: auto;
    align-items: center;
    gap: 5px;
}

@media (max-width: 1023px) {
    .header__mobile {
        display: flex;
    }
}

.header__mobile-icon {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    color: var(--color-text-white);
}

.header__mobile-icon:hover {
    color: var(--color-text-white);
    opacity: 0.8;
}

/* ハンバーガーメニュー */
.hamburger {
    position: relative;
    width: 44px;
    height: 44px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 6px;
}

.hamburger__line {
    display: block;
    width: 22px;
    height: 2px;
    background-color: var(--color-text-white);
    transition: transform var(--transition-base), opacity var(--transition-base);
}

.hamburger.is-active .hamburger__line:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.hamburger.is-active .hamburger__line:nth-child(2) {
    opacity: 0;
}

.hamburger.is-active .hamburger__line:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* ========================================
   モバイルナビゲーション
======================================== */
.mobile-nav {
    position: fixed;
    top: 0;
    right: -320px;
    width: 320px;
    max-width: 85vw;
    height: 100vh;
    background-color: var(--color-bg);
    z-index: var(--z-mobile-nav);
    overflow-y: auto;
    transition: right var(--transition-base);
}

.mobile-nav.is-open {
    right: 0;
}

.mobile-nav__overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: var(--z-overlay);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), visibility var(--transition-base);
}

.mobile-nav__overlay.is-visible {
    opacity: 1;
    visibility: visible;
}

.mobile-nav__inner {
    padding: 30px 20px;
}

.mobile-nav__logo {
    text-align: center;
    margin-bottom: 20px;
}

.mobile-nav__logo img {
    max-width: 140px;
}

.mobile-nav__cta {
    text-align: center;
    margin-bottom: 25px;
    padding-bottom: 25px;
    border-bottom: 1px solid var(--color-border);
}

.mobile-nav__tel {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin-bottom: 15px;
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-primary);
}

.mobile-nav__cta .btn {
    width: 100%;
}

.mobile-nav__list > li {
    border-bottom: 1px dotted var(--color-border);
}

.mobile-nav__list > li > a {
    display: block;
    padding: 15px 0;
    font-size: 1rem;
}

.mobile-nav__list .has-children > a {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.accordion-icon {
    position: relative;
    width: 20px;
    height: 20px;
}

.accordion-icon::before,
.accordion-icon::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 12px;
    height: 2px;
    background-color: var(--color-text);
    transition: transform var(--transition-fast);
}

.accordion-icon::before {
    transform: translate(-50%, -50%);
}

.accordion-icon::after {
    transform: translate(-50%, -50%) rotate(90deg);
}

.mobile-nav__list .has-children.is-open .accordion-icon::after {
    transform: translate(-50%, -50%) rotate(0);
}

.mobile-nav__sub {
    display: none;
    padding-left: 15px;
}

.mobile-nav__sub li a {
    display: block;
    padding: 10px 0;
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

/* ========================================
   メインコンテンツ
======================================== */
.main {
    min-height: 100vh;
}

.main--sub {
    padding-top: var(--header-height);
}

@media (max-width: 767px) {
    .main--sub {
        padding-top: var(--header-height-sp);
    }
}

/* ========================================
   フッター
======================================== */
.footer {
    background-color: var(--color-bg-gray);
}

.footer .container {
    padding-top: 60px;
    padding-bottom: 40px;
}

@media (max-width: 767px) {
    .footer .container {
        padding-top: 40px;
        padding-bottom: 30px;
    }
}

.footer__inner {
    display: grid;
    grid-template-columns: auto 1fr 1fr;
    gap: 50px;
    margin-bottom: 40px;
}

@media (max-width: 767px) {
    .footer__inner {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
    }
}

.footer__logo img {
    max-width: 180px;
}

@media (max-width: 767px) {
    .footer__logo {
        display: flex;
        justify-content: center;
    }

    .footer__logo img {
        max-width: 140px;
    }
}

.footer__info {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

@media (max-width: 767px) {
    .footer__info {
        text-align: left;
    }
}

.footer__address h4 {
    font-size: 1rem;
    margin-bottom: 5px;
}

.footer__address p {
    font-size: var(--font-size-sm);
    line-height: 1.6;
}

.footer__nav {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

@media (max-width: 767px) {
    .footer__nav {
        text-align: left;
    }
}

.footer__nav-group h4 {
    font-size: 1rem;
    margin-bottom: 10px;
}

.footer__nav-group h4 a:hover {
    text-decoration: underline;
}

.footer__nav-group ul {
    padding-left: 15px;
}

.footer__nav-group ul li {
    margin-bottom: 5px;
}

.footer__nav-group ul li a {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

.footer__nav-group ul li a:hover {
    text-decoration: underline;
    color: var(--color-primary);
}

.footer__nav-links ul {
    display: flex;
    flex-wrap: wrap;
    gap: 15px 20px;
}

@media (max-width: 767px) {
    .footer__nav-links ul {
        flex-direction: column;
        gap: 10px;
    }
}

.footer__nav-links ul li a {
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.footer__nav-links ul li a:hover {
    text-decoration: underline;
}

/* コピーライト */
.footer__copyright {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--color-border);
    font-size: var(--font-size-sm);
}

.footer__copyright p {
    margin-bottom: 10px;
}

.footer__credit {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    font-size: 0.75rem;
}

.footer__credit img {
    vertical-align: middle;
}

/* ========================================
   ページトップボタン
======================================== */
.page-top {
    position: fixed;
    bottom: 30px;
    right: 20px;
    width: 44px;
    height: 44px;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: var(--color-primary);
    color: var(--color-text-white);
    z-index: var(--z-page-top);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), visibility var(--transition-base), background-color var(--transition-fast);
}

.page-top.is-visible {
    opacity: 1;
    visibility: visible;
}

.page-top:hover {
    background-color: var(--color-primary-dark);
    color: var(--color-text-white);
}

/* ========================================
   パンくずリスト
======================================== */
.breadcrumb {
    padding: 20px 0;
}

@media (max-width: 767px) {
    .breadcrumb {
        padding: 15px 0;
    }
}

.breadcrumb__list {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    font-size: var(--font-size-sm);
}

.breadcrumb__item {
    display: flex;
    align-items: center;
}

.breadcrumb__item:not(:last-child)::after {
    content: ">";
    margin-left: 8px;
    color: var(--color-text-light);
}

.breadcrumb__item a {
    color: var(--color-primary);
}

.breadcrumb__item a:hover {
    text-decoration: underline;
}