/* ============================================
   合同会社パピヨン - Layout Styles
   ============================================
   ヘッダー、フッター、セクション構造
   ============================================ */

/* -----------------------------------------
   Header
   ----------------------------------------- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: var(--spacing-lg) 0;
    background-color: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    border-bottom: 1px solid var(--color-border-light);
    transition: all var(--transition-slow);
}

.site-header.is-scrolled {
    padding: var(--spacing-sm) 0;
    box-shadow: var(--shadow-sm);
}

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* ロゴエリア */
.header__logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex-shrink: 0;
}

.header__logo-mark {
    position: relative;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.header__logo-mark::before {
    content: '';
    position: absolute;
    inset: 0;
    background-color: var(--color-primary);
    opacity: 0.1;
    transform: rotate(45deg);
    transition: transform var(--transition-slow);
}

.header__logo-mark::after {
    content: '';
    position: absolute;
    inset: 8px;
    border: 1px solid rgba(15, 35, 80, 0.3);
    transform: rotate(45deg);
    transition: transform var(--transition-slow);
}

.header__logo:hover .header__logo-mark::before,
.header__logo:hover .header__logo-mark::after {
    transform: rotate(0deg);
}

.header__logo-icon {
    width: 20px;
    height: 20px;
    color: var(--color-primary);
    position: relative;
    z-index: 1;
}

.header__logo-text {
    display: flex;
    flex-direction: column;
}

.header__company-name {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary-dark);
    letter-spacing: 0.05em;
}

.header__tagline {
    font-size: 0.625rem;
    color: var(--color-gray);
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

/* ナビゲーション */
.header__nav {
    display: none;
}

@media (min-width: 1024px) {
    .header__nav {
        display: block;
    }
}

.header__nav-list {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.header__nav-link {
    position: relative;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-muted);
    padding: var(--spacing-xs) 0;
    transition: color var(--transition-fast);
}

.header__nav-link::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 1px;
    background-color: var(--color-accent);
    transition: width var(--transition-base);
}

.header__nav-link:hover,
.header__nav-link:focus {
    color: var(--color-primary);
}

.header__nav-link:hover::after,
.header__nav-link:focus::after {
    width: 100%;
}

/* ヘッダーアクション */
.header__actions {
    display: none;
    align-items: center;
    gap: var(--spacing-lg);
}

@media (min-width: 1024px) {
    .header__actions {
        display: flex;
    }
}

.header__phone {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    color: var(--color-primary-dark);
}

.header__phone-label {
    font-size: 0.625rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    color: var(--color-accent);
}

.header__phone-number {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-family: var(--font-serif);
    font-size: 1.125rem;
    font-weight: 700;
    line-height: 1;
    color: var(--color-primary-dark);
    transition: opacity var(--transition-fast);
}

.header__phone-number:hover {
    opacity: 0.7;
}

.header__cta {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: var(--color-primary);
    color: #ffffff;
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-fast);
}

.header__cta:hover,
.header__cta:focus {
    background-color: var(--color-primary-dark);
    color: #ffffff;
    box-shadow: var(--shadow-lg);
}

/* モバイルメニューボタン */
.header__menu-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border: none;
    background-color: transparent;
    border-radius: var(--radius-full);
    color: var(--color-primary-dark);
    transition: all var(--transition-fast);
    cursor: pointer;
    position: relative;
    z-index: 10001;
}

.header__menu-btn:hover,
.header__menu-btn:focus {
    background-color: var(--color-border-light);
    outline: none;
}

.header__menu-btn svg {
    width: 24px;
    height: 24px;
    transition: opacity 0.2s ease, transform 0.3s ease;
}

.header__menu-btn::before,
.header__menu-btn::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 2px;
    background-color: var(--color-primary-dark);
    border-radius: 1px;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.2s ease;
    opacity: 0;
}

/* メニューが開いている時は×アイコンに変更 */
.header__menu-btn.is-active svg {
    opacity: 0;
}

.header__menu-btn.is-active::before {
    opacity: 1;
    transform: rotate(45deg);
}

.header__menu-btn.is-active::after {
    opacity: 1;
    transform: rotate(-45deg);
}

@media (min-width: 1024px) {
    .header__menu-btn {
        display: none;
    }
}

/* モバイルナビゲーション */
.mobile-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 9999;
    /* 濃いオーバーレイで背景を完全に覆う */
    background-color: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    /* メニュー開いている間は背景のスクロールを完全に無効化 */
    overflow: hidden;
}

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

.mobile-nav__panel {
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    max-width: 85vw;
    min-width: 280px;
    height: 100%;
    background-color: #ffffff;
    padding: 0;
    transform: translateX(100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow-y: auto;
    overflow-x: hidden;
    /* メニューパネルを最前面に */
    z-index: 10000;
    /* 影でメニューが前面にあることを明確に */
    box-shadow: -4px 0 24px rgba(0, 0, 0, 0.3);
    display: flex;
    flex-direction: column;
}

.mobile-nav.is-open .mobile-nav__panel {
    transform: translateX(0);
}

.mobile-nav__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--color-border-light);
    background-color: #ffffff;
    position: sticky;
    top: 0;
    z-index: 10;
    flex-shrink: 0;
}

.mobile-nav__header-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-family: var(--font-serif);
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-primary-dark);
    text-decoration: none;
}

.mobile-nav__header-logo-icon {
    width: 24px;
    height: 24px;
    color: var(--color-primary);
    flex-shrink: 0;
}

.mobile-nav__close {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary-dark);
    background-color: transparent;
    border: none;
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
    cursor: pointer;
    flex-shrink: 0;
}

.mobile-nav__close:hover,
.mobile-nav__close:focus {
    background-color: var(--color-border-light);
    outline: none;
}

.mobile-nav__close svg {
    width: 24px;
    height: 24px;
}

.mobile-nav__list {
    padding: var(--spacing-sm) 0;
    margin: 0;
    list-style: none;
    flex: 1;
    overflow-y: auto;
}

.mobile-nav__item {
    border-bottom: 1px solid var(--color-border-light);
}

.mobile-nav__item:last-child {
    border-bottom: none;
}

.mobile-nav__link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    font-family: var(--font-serif);
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-primary-dark);
    text-decoration: none;
    transition: all var(--transition-fast);
    /* タッチターゲットを十分に大きく */
    min-height: 48px;
}

.mobile-nav__link:hover,
.mobile-nav__link:focus {
    color: var(--color-accent);
    background-color: var(--color-cream);
    outline: none;
}

.mobile-nav__link::after {
    content: '';
    width: 6px;
    height: 6px;
    border-right: 2px solid var(--color-text-light);
    border-bottom: 2px solid var(--color-text-light);
    transform: rotate(-45deg);
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.mobile-nav__link:hover::after,
.mobile-nav__link:focus::after {
    border-color: var(--color-accent);
    transform: rotate(-45deg) translateX(2px);
}

.mobile-nav__actions {
    position: sticky;
    bottom: 0;
    display: flex;
    flex-direction: row;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: #ffffff;
    border-top: 1px solid var(--color-border-light);
    /* メニュー内のアクションを最前面に */
    z-index: 10;
    flex-shrink: 0;
}

.mobile-nav__phone-btn,
.mobile-nav__cta-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md) var(--spacing-lg);
    font-family: var(--font-serif);
    font-size: 0.9375rem;
    font-weight: 700;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    text-decoration: none;
    flex: 1;
    /* タッチターゲットを十分に大きく */
    min-height: 48px;
}

.mobile-nav__phone-btn {
    background-color: var(--color-cream);
    color: var(--color-primary-dark);
    border: 2px solid rgba(182, 142, 85, 0.3);
    font-weight: 700;
    letter-spacing: 0.05em;
}

.mobile-nav__phone-btn:hover,
.mobile-nav__phone-btn:focus {
    background-color: #fef3c7;
    border-color: var(--color-accent);
    outline: none;
}

.mobile-nav__phone-btn svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    display: none;
}

.mobile-nav__cta-btn {
    background-color: var(--color-primary);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(15, 35, 80, 0.2);
}

.mobile-nav__cta-btn:hover,
.mobile-nav__cta-btn:focus {
    background-color: var(--color-primary-dark);
    box-shadow: 0 6px 16px rgba(15, 35, 80, 0.3);
    transform: translateY(-1px);
    outline: none;
}

.mobile-nav__cta-btn svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    display: none;
}

/* -----------------------------------------
   Section Common
   ----------------------------------------- */
.section {
    padding: var(--spacing-4xl) 0;
}

.section--cream {
    background-color: var(--color-cream);
}

.section--dark {
    background-color: var(--color-primary);
    color: #ffffff;
}

.section--gray {
    background-color: #f2f2f2;
}

.section__header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section__label {
    display: block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

.section__title {
    margin-bottom: var(--spacing-md);
}

.section__divider {
    width: 48px;
    height: 2px;
    background-color: rgba(15, 35, 80, 0.3);
    margin: 0 auto;
}

.section--dark .section__divider {
    background-color: rgba(255, 255, 255, 0.3);
}

/* -----------------------------------------
   Footer
   ----------------------------------------- */
.site-footer {
    background-color: var(--color-primary-dark);
    color: #ffffff;
    padding: var(--spacing-4xl) 0 var(--spacing-xl);
}

.footer__inner {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3xl);
}

@media (min-width: 768px) {
    .footer__inner {
        flex-direction: row;
        justify-content: space-between;
    }
}

.footer__main {
    max-width: 400px;
}

.footer__logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.footer__logo-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.footer__logo-icon svg {
    width: 20px;
    height: 20px;
    color: var(--color-accent);
}

.footer__company-name {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 700;
}

.footer__description {
    font-size: 0.875rem;
    line-height: 2;
    color: rgba(255, 255, 255, 0.6);
}

.footer__description .protected-email {
    color: #ffffff;
    text-decoration: underline;
    transition: opacity var(--transition-fast);
}

.footer__description .protected-email:hover {
    opacity: 0.8;
}

.footer__nav {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-2xl);
}

.footer__nav-section h3 {
    font-family: var(--font-serif);
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: var(--spacing-lg);
}

.footer__nav-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.footer__nav-link {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
    transition: color var(--transition-fast);
}

.footer__nav-link:hover {
    color: #ffffff;
}

.footer__bottom {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    padding-top: var(--spacing-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: var(--spacing-3xl);
}

@media (min-width: 768px) {
    .footer__bottom {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
}

.footer__copyright {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.5);
}

.footer__legal {
    display: flex;
    gap: var(--spacing-lg);
}

.footer__legal-link {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.5);
    transition: color var(--transition-fast);
}

.footer__legal-link:hover {
    color: rgba(255, 255, 255, 0.8);
}