/* ========================================
   SaraChan Theme - Common Styles
   全ページ共通のスタイル
======================================== */

/* CSS変数（共通） */
:root {
    --color-bg: #f8fdf9;
    --color-bg-soft: #f0f9f4;
    --color-bg-card: #ffffff;

    --color-green-lightest: #f0f9f2;
    --color-green-light: #e8f5e9;
    --color-green-soft: #a8d5ba;
    --color-green-main: #7bc89c;
    --color-green-accent: #5db87d;
    --color-green-dark: #4a9968;

    --color-aqua-light: #e0f7fa;
    --color-aqua-soft: #a7dce8;
    --color-aqua-main: #6cc4db;
    --color-aqua-accent: #4db6d4;

    --color-pink-soft: #f8e8f0;
    --color-pink-main: #e8a0c0;

    --color-text-main: #3d5a47;
    --color-text-soft: #5a7d66;
    --color-text-muted: #8ba898;

    --color-white: #ffffff;
    --color-border: #d4e8dc;

    --font-display: 'Quicksand', 'M PLUS Rounded 1c', sans-serif;
    --font-body: 'M PLUS Rounded 1c', sans-serif;

    --shadow-soft: 0 4px 20px rgba(93, 184, 125, 0.08);
    --shadow-card: 0 8px 30px rgba(93, 184, 125, 0.12);
    --shadow-hover: 0 20px 60px rgba(93, 184, 125, 0.2);
}

/* リセット */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-body);
    background-color: var(--color-bg);
    color: var(--color-text-main);
    line-height: 1.8;
    overflow-x: hidden;
}

/* ========================================
   ヘッダー（共通ベース: 不透明状態）
======================================== */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 12px 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: 0 4px 30px rgba(93, 184, 125, 0.1);
}

.header-inner {
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    z-index: 1;
}

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    transition: all 0.4s;
}

.logo img {
    height: 32px;
    width: auto;
    transition: all 0.4s;
}

/* ナビゲーション */
#mainNav {
    display: flex;
    gap: 6px;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 12px 20px;
    color: var(--color-text-main);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: 30px;
    transition: all 0.4s;
    position: relative;
    overflow: hidden;
}

.nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-green-main), var(--color-aqua-main));
    opacity: 0;
    transform: scale(0);
    border-radius: 30px;
    transition: all 0.4s;
    z-index: -1;
}

.nav-link:hover::before {
    opacity: 1;
    transform: scale(1);
}

.nav-link:hover {
    color: var(--color-white);
}

/* ドロップダウン矢印 */
.nav-link .arrow {
    font-size: 0.6em;
    transition: transform 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    display: inline-block;
}

.nav-item:hover .arrow {
    transform: rotate(180deg);
}

/* ドロップダウンメニュー */
.dropdown {
    position: absolute;
    top: calc(100% + 15px);
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    min-width: 220px;
    background: var(--color-white);
    border-radius: 20px;
    padding: 16px 0;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-hover);
    border: 1px solid var(--color-border);
}

.dropdown::before {
    content: '';
    position: absolute;
    top: -8px;
    left: 50%;
    transform: translateX(-50%);
    border-left: 10px solid transparent;
    border-right: 10px solid transparent;
    border-bottom: 10px solid var(--color-white);
}

.nav-item:hover .dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.dropdown-link {
    display: block;
    padding: 12px 24px;
    color: var(--color-text-main);
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.3s;
}

.dropdown-link:hover {
    background: linear-gradient(90deg, var(--color-green-light), transparent);
    color: var(--color-green-accent);
    padding-left: 32px;
}

/* モバイルメニューボタン */
.mobile-menu-btn {
    display: none;
    width: 48px;
    height: 48px;
    background: var(--color-green-light);
    border: none;
    border-radius: 12px;
    cursor: pointer;
    position: relative;
}

.mobile-menu-btn span {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 22px;
    height: 2px;
    background: var(--color-green-accent);
    border-radius: 2px;
    transition: all 0.4s;
}

.mobile-menu-btn span:nth-child(1) { top: 16px; }
.mobile-menu-btn span:nth-child(2) { top: 23px; }
.mobile-menu-btn span:nth-child(3) { top: 30px; }

.mobile-menu-btn.active {
    background: var(--color-green-light) !important;
}
.mobile-menu-btn.active span {
    background: var(--color-green-accent) !important;
}
.mobile-menu-btn.active span:nth-child(1) {
    top: 23px;
    transform: translateX(-50%) rotate(45deg);
}
.mobile-menu-btn.active span:nth-child(2) { opacity: 0; }
.mobile-menu-btn.active span:nth-child(3) {
    top: 23px;
    transform: translateX(-50%) rotate(-45deg);
}

/* ========================================
   検索ボタン・モーダル
======================================== */
.search-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.3s;
}

.search-btn:hover {
    opacity: 0.7;
}

.search-btn svg {
    width: 20px;
    height: 20px;
    fill: none;
    stroke: var(--color-text-main);
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.search-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(8px);
    z-index: 10000;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 20vh;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
}

.search-overlay.active {
    opacity: 1;
    visibility: visible;
}

.search-box {
    background: #fff;
    border-radius: 16px;
    padding: 32px;
    width: 90%;
    max-width: 600px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    transform: translateY(-20px);
    transition: transform 0.3s;
}

.search-overlay.active .search-box {
    transform: translateY(0);
}

.search-box input {
    width: 100%;
    padding: 16px 20px;
    font-size: 1.1rem;
    border: 2px solid var(--color-aqua-soft);
    border-radius: 12px;
    outline: none;
    font-family: inherit;
    box-sizing: border-box;
}

.search-box input:focus {
    border-color: var(--color-pink-main);
}

.search-close {
    position: absolute;
    top: 20px;
    right: 20px;
    background: none;
    border: none;
    color: #fff;
    font-size: 2rem;
    cursor: pointer;
}

/* ========================================
   記事ヘッダー・パンくずリスト
======================================== */
.article-header {
    padding: 120px 32px 60px;
    background: linear-gradient(135deg, var(--color-green-light) 0%, var(--color-aqua-light) 100%);
}

.article-header-inner {
    max-width: 900px;
    margin: 0 auto;
}

.article-breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin-bottom: 20px;
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.article-breadcrumb a {
    color: var(--color-text-muted);
    text-decoration: none;
    transition: color 0.3s;
}

.article-breadcrumb a:hover {
    color: var(--color-green-accent);
}

.article-breadcrumb span {
    color: var(--color-text-muted);
}

/* ========================================
   フッター
======================================== */
.site-footer {
    background: linear-gradient(135deg, var(--color-green-light) 0%, var(--color-aqua-light) 100%);
    padding: 50px 32px;
    text-align: center;
}

.footer-content {
    max-width: 1300px;
    margin: 0 auto;
}

.footer-logo {
    margin-bottom: 16px;
    height: 40px;
    width: auto;
}

.footer-logo img {
    height: 40px;
    width: auto;
}

.footer-nav {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.footer-nav a {
    color: var(--color-text-soft);
    text-decoration: none;
    font-size: 0.85rem;
    transition: opacity 0.3s;
}

.footer-nav a:hover {
    opacity: 0.7;
}

.footer-copyright {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    line-height: 1.8;
}

.footer-legal {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    line-height: 1.8;
}

.footer-legal:first-of-type {
    margin-top: 8px;
}

/* ========================================
   スクロールトップボタン
======================================== */
.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-green-main), var(--color-aqua-main));
    color: white;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    box-shadow: 0 8px 25px rgba(93, 184, 125, 0.4);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px) scale(0.8);
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    z-index: 999;
    overflow: hidden;
}

.scroll-top::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.scroll-top:hover::before {
    width: 150%;
    height: 150%;
}

.scroll-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.scroll-top:hover {
    transform: translateY(-5px) scale(1.1);
    box-shadow: 0 15px 40px rgba(93, 184, 125, 0.5);
}

.scroll-top:active {
    transform: translateY(-2px) scale(1.05);
}

.scroll-top .arrow {
    transition: transform 0.3s;
    position: relative;
    z-index: 1;
}

.scroll-top:hover .arrow {
    animation: bounceUp 0.6s ease infinite;
}

@keyframes bounceUp {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-4px); }
}

.scroll-top-progress {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}

.scroll-top-progress circle {
    fill: none;
    stroke-width: 3;
}


.scroll-top-arrow {
    position: relative;
    z-index: 1;
}

/* ========================================
   ユーティリティクラス
======================================== */

/* 404ページ */
.error-page {
    text-align: center;
    padding: 80px 20px;
}

.error-code {
    font-size: 6rem;
    color: var(--color-green-soft);
    margin-bottom: 20px;
}

.error-message {
    font-size: 1.2rem;
    color: var(--color-text-soft);
    margin-bottom: 30px;
}

/* 共通ボタン */
.btn-primary {
    display: inline-block;
    padding: 14px 32px;
    background: linear-gradient(135deg, var(--color-green-accent), var(--color-aqua-accent));
    color: #fff;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

/* 空状態 */
.empty-state {
    text-align: center;
    padding: 80px 20px;
}

.empty-state-title {
    font-size: 1.2rem;
    color: var(--color-text-muted);
    margin-bottom: 20px;
}

.empty-state-text {
    color: var(--color-text-muted);
}

.no-posts-message {
    text-align: center;
    padding: 60px 20px;
    color: var(--color-text-muted);
}

/* 検索結果カウント */
.search-result-count {
    color: var(--color-text-muted);
    margin-top: 8px;
}

/* アーカイブ説明 */
.archive-description {
    color: var(--color-text-soft);
    font-size: 0.95rem;
    margin-top: 12px;
}

/* ページコンテナ（固定ページ用） */
.article-container--page {
    display: block;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

.article-container--page .article-main {
    max-width: 100%;
}

/* サイドバーウィジェット */
.widget-title-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.widget-title--plain {
    border: none;
    padding: 0;
    margin: 0;
}

.widget-profile-content {
    text-align: center;
}

.widget-profile-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    margin-bottom: 12px;
}

.widget-profile-name {
    font-size: 1rem;
    margin-bottom: 4px;
}

.widget-profile-role {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

/* ========================================
   ページネーション
======================================== */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin-top: 60px;
}

/* WordPress pagination (paginate_links output) */
.pagination .page-numbers {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    text-decoration: none;
    background: var(--color-white);
    border: 2px solid var(--color-border);
    color: var(--color-text-main);
}

.pagination .page-numbers:hover,
.pagination .page-numbers.current {
    background: linear-gradient(135deg, var(--color-green-main), var(--color-aqua-main));
    border-color: transparent;
    color: var(--color-white);
    transform: scale(1.1);
}

.pagination .page-numbers.prev,
.pagination .page-numbers.next {
    background: var(--color-green-light);
    border: none;
    color: var(--color-green-accent);
}

.pagination .page-numbers.prev:hover,
.pagination .page-numbers.next:hover {
    background: var(--color-green-main);
    color: var(--color-white);
    transform: scale(1.1);
}

.pagination .page-numbers.dots {
    background: transparent;
    border: none;
    color: var(--color-text-muted);
    font-size: 1.2rem;
    cursor: default;
    width: auto;
    height: auto;
}

.pagination .page-numbers.dots:hover {
    background: transparent;
    color: var(--color-text-muted);
    transform: none;
}

/* ========================================
   レスポンシブ - 共通要素
======================================== */

/* デスクトップではモバイル検索を非表示 */
.mobile-nav-search {
    display: none;
}

/* タブレット (1100px以下) */
@media (max-width: 1100px) {
    /* 検索ボタンをモバイルで非表示（メニュー内に移動） */
    .search-btn {
        display: none !important;
    }

    /* ハンバーガーメニューを右端に */
    .header-inner {
        display: flex;
        align-items: center;
    }
    .logo { order: 1; }
    .mobile-menu-btn {
        order: 3;
        margin-left: auto;
        position: relative;
        z-index: 1001;
    }

    /* モバイル検索フォーム（メニュー内） */
    .mobile-nav-search {
        display: block;
        width: 100%;
        max-width: 300px;
        margin-bottom: 20px;
    }

    .mobile-nav-search form {
        display: flex;
        align-items: center;
        gap: 10px;
        background: var(--color-bg-soft, #f5f5f5);
        border: 2px solid var(--color-green-accent, #7bc89c);
        border-radius: 30px;
        padding: 10px 18px;
        transition: all 0.3s;
    }

    .mobile-nav-search form:focus-within {
        border-color: var(--color-green-dark, #5db87d);
        box-shadow: 0 0 0 4px rgba(123, 200, 156, 0.15);
    }

    .mobile-nav-search svg {
        width: 18px;
        height: 18px;
        flex-shrink: 0;
        fill: none;
        stroke: var(--color-text-muted, #999);
        stroke-width: 2;
        stroke-linecap: round;
        stroke-linejoin: round;
    }

    .mobile-nav-search input {
        flex: 1;
        border: none;
        background: transparent;
        font-size: 0.95rem;
        color: var(--color-text-main, #333);
        outline: none;
        font-family: inherit;
    }

    .mobile-nav-search input::placeholder {
        color: var(--color-text-muted, #999);
    }

    #mainNav {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 10px;
        z-index: 999;
        padding: 80px 20px;
        overflow-y: auto;
    }

    #mainNav.active {
        display: flex;
    }

    .nav-item {
        width: 100%;
        max-width: 300px;
        text-align: center;
    }

    .nav-link {
        font-size: 1.1rem;
        padding: 14px 24px;
        justify-content: center;
        width: 100%;
    }

    .nav-link:hover::before {
        opacity: 0;
        transform: scale(0);
    }

    .nav-link:hover {
        color: var(--color-green-accent);
    }

    .dropdown {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: none;
        background: var(--color-bg-soft);
        margin-top: 8px;
        border-radius: 16px;
        display: none;
        min-width: 100%;
    }

    .dropdown::before {
        display: none;
    }

    .nav-item.open .dropdown {
        display: block;
    }

    .dropdown-link {
        text-align: center;
        padding: 10px 20px;
    }

    .dropdown-link:hover {
        padding-left: 20px;
    }

    .mobile-menu-btn {
        display: block;
    }
}

/* スマホ横向き (768px以下) */
@media (max-width: 768px) {
    .header-inner {
        padding: 0 16px;
    }

    .logo img {
        height: 26px;
    }

    /* 記事ヘッダー */
    .article-header {
        padding: 90px 16px 40px;
    }

    .article-breadcrumb {
        font-size: 0.8rem;
        gap: 6px;
        margin-bottom: 16px;
    }

    /* フッター */
    .site-footer {
        padding: 40px 16px;
    }

    .footer-logo,
    .footer-logo img {
        height: 32px;
    }

    .footer-copyright {
        font-size: 0.7rem;
    }

    /* スクロールトップ */
    .scroll-top {
        width: 50px;
        height: 50px;
        bottom: 20px;
        right: 20px;
        font-size: 1.2rem;
    }

    /* ページネーション */
    .pagination {
        margin-top: 40px;
        gap: 6px;
    }

    .pagination-btn,
    .pagination-arrow {
        width: 38px;
        height: 38px;
        font-size: 0.85rem;
    }

    .pagination .page-numbers {
        width: 38px;
        height: 38px;
        font-size: 0.85rem;
    }

    .pagination-ellipsis {
        font-size: 1rem;
        padding: 0 2px;
    }
}

/* スマホ (480px以下) */
@media (max-width: 480px) {
    .article-header {
        padding: 85px 14px 30px;
    }

    .article-breadcrumb {
        font-size: 0.75rem;
        gap: 4px;
    }

    .nav-link {
        font-size: 1rem;
        padding: 12px 20px;
    }

    /* ページネーション */
    .pagination-btn,
    .pagination-arrow {
        width: 34px;
        height: 34px;
        font-size: 0.8rem;
    }

    .pagination .page-numbers {
        width: 34px;
        height: 34px;
        font-size: 0.8rem;
    }

    .pagination-btn:nth-child(n+7):not(:last-child) {
        display: none;
    }
}

/* 超小型スマホ (360px以下) */
@media (max-width: 360px) {
    .header-inner {
        padding: 0 10px;
    }

    .logo img {
        height: 22px;
    }

    .article-header {
        padding: 80px 10px 24px;
    }

    .article-breadcrumb {
        font-size: 0.7rem;
    }

    /* ページネーション */
    .pagination {
        gap: 4px;
    }

    .pagination-btn,
    .pagination-arrow {
        width: 30px;
        height: 30px;
        font-size: 0.75rem;
    }

    .pagination .page-numbers {
        width: 30px;
        height: 30px;
        font-size: 0.75rem;
    }

    .pagination-btn:nth-child(n+6):not(:last-child) {
        display: none;
    }
}