/*
Theme Name: SMS Manual
Theme URI: https://www.sms-soushin.com/
Author: SMS送信.com
Author URI: https://www.sms-soushin.com/
Description: SMS送信.com マニュアルサイト専用テーマ。シンプルで見やすいサポートドキュメントデザイン。
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.7
Requires PHP: 8.0
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: sms-manual
Tags: documentation, support, manual, clean, business
*/

/* ========================================
   CSS カスタムプロパティ（変数）
======================================== */
:root {
    --color-primary:      #1A73C8;
    --color-primary-dark: #1558A0;
    --color-primary-light:#E8F1FB;
    --color-accent:       #00A0E9;
    --color-success:      #34A853;
    --color-warning:      #FBBC04;
    --color-danger:       #EA4335;

    --color-text:         #1F2D3D;
    --color-text-sub:     #5A6472;
    --color-text-muted:   #8A95A0;
    --color-border:       #DDE3EB;
    --color-bg:           #F4F6F9;
    --color-bg-white:     #FFFFFF;
    --color-bg-dark:      #1F2D3D;

    --font-sans: 'Noto Sans JP', 'Hiragino Sans', 'Hiragino Kaku Gothic ProN', 'Yu Gothic', 'Meiryo', sans-serif;
    --font-size-base: 15px;
    --line-height-base: 1.8;

    --radius-sm:  4px;
    --radius-md:  8px;
    --radius-lg:  12px;
    --radius-xl:  16px;

    --shadow-sm:  0 1px 3px rgba(0,0,0,.08);
    --shadow-md:  0 4px 12px rgba(0,0,0,.10);
    --shadow-lg:  0 8px 24px rgba(0,0,0,.12);

    --transition: 0.2s ease;

    --header-height: 64px;
    --container-max: 1160px;
    --sidebar-width: 260px;
}

/* ========================================
   リセット & ベース
======================================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-sans);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
}

a { color: var(--color-primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-primary-dark); text-decoration: underline; }

img { max-width: 100%; height: auto; display: block; }

ul, ol { list-style: none; }

/* ========================================
   レイアウト
======================================== */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

.site-wrap {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.site-main { flex: 1; }

/* ========================================
   ヘッダー
======================================== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--color-bg-white);
    border-bottom: 1px solid var(--color-border);
    height: var(--header-height);
    box-shadow: var(--shadow-sm);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    gap: 24px;
}

.site-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
    text-decoration: none;
}

.site-logo__icon {
    width: 36px;
    height: 36px;
    background: var(--color-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    font-size: 16px;
    letter-spacing: -0.5px;
}

.site-logo__text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.site-logo__name {
    font-size: 15px;
    font-weight: 700;
    color: var(--color-text);
}

.site-logo__sub {
    font-size: 11px;
    color: var(--color-text-sub);
    font-weight: 400;
}

/* ヘッダー検索 */
.header-search {
    flex: 1;
    max-width: 480px;
}

.header-search form {
    position: relative;
    display: flex;
    align-items: center;
}

.header-search input[type="search"] {
    width: 100%;
    height: 40px;
    padding: 0 44px 0 16px;
    border: 1px solid var(--color-border);
    border-radius: 20px;
    font-size: 14px;
    font-family: var(--font-sans);
    color: var(--color-text);
    background: var(--color-bg);
    outline: none;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.header-search input[type="search"]:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(26,115,200,.15);
    background: #fff;
}

.header-search button {
    position: absolute;
    right: 12px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-text-sub);
    padding: 0;
    display: flex;
    align-items: center;
}

.header-search button:hover { color: var(--color-primary); }

/* ヘッダーナビ */
.header-nav { flex-shrink: 0; }

.header-nav ul {
    display: flex;
    align-items: center;
    gap: 4px;
}

.header-nav a {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border-radius: var(--radius-md);
    font-size: 13px;
    font-weight: 500;
    color: var(--color-text-sub);
    transition: background var(--transition), color var(--transition);
    text-decoration: none;
}

.header-nav a:hover,
.header-nav .current-menu-item > a {
    background: var(--color-primary-light);
    color: var(--color-primary);
    text-decoration: none;
}

/* ハンバーガーメニュー */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    color: var(--color-text);
}

/* ========================================
   パンくずリスト
======================================== */
.breadcrumb-wrap {
    background: var(--color-bg-white);
    border-bottom: 1px solid var(--color-border);
    padding: 10px 0;
}

.breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 4px;
    font-size: 13px;
    color: var(--color-text-sub);
}

.breadcrumb a { color: var(--color-text-sub); }
.breadcrumb a:hover { color: var(--color-primary); }

.breadcrumb__sep {
    color: var(--color-border);
    margin: 0 2px;
}

.breadcrumb__current { color: var(--color-text); font-weight: 500; }

/* ========================================
   トップページ Hero
======================================== */
.hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, #0D47A1 100%);
    color: #fff;
    padding: 56px 0 48px;
    text-align: center;
}

.hero__label {
    display: inline-block;
    background: rgba(255,255,255,.2);
    border-radius: 20px;
    padding: 4px 16px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.05em;
    margin-bottom: 16px;
    text-transform: uppercase;
}

.hero__title {
    font-size: clamp(22px, 4vw, 32px);
    font-weight: 700;
    margin-bottom: 12px;
    line-height: 1.4;
}

.hero__desc {
    font-size: 15px;
    opacity: .85;
    max-width: 520px;
    margin: 0 auto 32px;
}

.hero-search {
    max-width: 560px;
    margin: 0 auto;
}

.hero-search form {
    display: flex;
    background: #fff;
    border-radius: 28px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.hero-search input[type="search"] {
    flex: 1;
    height: 52px;
    padding: 0 20px;
    border: none;
    outline: none;
    font-size: 15px;
    font-family: var(--font-sans);
    color: var(--color-text);
}

.hero-search button {
    height: 52px;
    padding: 0 24px;
    background: var(--color-primary);
    color: #fff;
    border: none;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    font-family: var(--font-sans);
    transition: background var(--transition);
    white-space: nowrap;
}

.hero-search button:hover { background: var(--color-primary-dark); }

/* ========================================
   カテゴリータブ
======================================== */
.category-tabs {
    background: var(--color-bg-white);
    border-bottom: 1px solid var(--color-border);
    padding: 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}

.category-tabs::-webkit-scrollbar { display: none; }

.category-tabs__inner {
    display: flex;
    align-items: center;
    gap: 0;
    padding: 0 24px;
    min-width: max-content;
}

.category-tab {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 14px 20px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-sub);
    border-bottom: 3px solid transparent;
    cursor: pointer;
    white-space: nowrap;
    transition: color var(--transition), border-color var(--transition);
    text-decoration: none;
}

.category-tab:hover,
.category-tab.is-active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
    text-decoration: none;
}

/* ========================================
   セクション共通
======================================== */
.section {
    padding: 48px 0;
}

.section--gray { background: var(--color-bg); }
.section--white { background: var(--color-bg-white); }

.section__header {
    margin-bottom: 32px;
}

.section__title {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-text);
    display: flex;
    align-items: center;
    gap: 10px;
}

.section__title::before {
    content: '';
    display: block;
    width: 4px;
    height: 20px;
    background: var(--color-primary);
    border-radius: 2px;
    flex-shrink: 0;
}

.section__title-icon {
    font-size: 20px;
}

.section__desc {
    font-size: 14px;
    color: var(--color-text-sub);
    margin-top: 8px;
}

.section__more {
    text-align: right;
    margin-top: 24px;
}

/* ========================================
   カードグリッド（MoneyForward風）
======================================== */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 20px;
}

.card-grid--3col {
    grid-template-columns: repeat(3, 1fr);
}

.card-grid--2col {
    grid-template-columns: repeat(2, 1fr);
}

/* カテゴリーカード */
.category-card {
    background: var(--color-bg-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 24px;
    transition: box-shadow var(--transition), transform var(--transition);
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.category-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.category-card__head {
    display: flex;
    align-items: flex-start;
    gap: 14px;
}

.category-card__icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    flex-shrink: 0;
}

.category-card__icon--blue   { background: #E8F1FB; }
.category-card__icon--green  { background: #E8F5E9; }
.category-card__icon--orange { background: #FFF3E0; }
.category-card__icon--purple { background: #F3E5F5; }
.category-card__icon--teal   { background: #E0F2F1; }
.category-card__icon--red    { background: #FDECEA; }

.category-card__meta { flex: 1; }

.category-card__title {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 4px;
    line-height: 1.4;
}

.category-card__count {
    font-size: 12px;
    color: var(--color-text-muted);
}

.category-card__links {
    display: flex;
    flex-direction: column;
    gap: 6px;
    border-top: 1px solid var(--color-border);
    padding-top: 16px;
}

.category-card__link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 500;
    color: var(--color-text-sub);
    transition: background var(--transition), color var(--transition);
    text-decoration: none;
}

.category-card__link:hover {
    background: var(--color-primary-light);
    color: var(--color-primary);
    text-decoration: none;
}

.category-card__link-arrow {
    font-size: 12px;
    opacity: .5;
}

/* ========================================
   記事リスト
======================================== */
.article-list {
    display: flex;
    flex-direction: column;
    gap: 1px;
    background: var(--color-border);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.article-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    background: var(--color-bg-white);
    transition: background var(--transition);
    text-decoration: none;
}

.article-item:hover { background: var(--color-primary-light); text-decoration: none; }

.article-item__badge {
    flex-shrink: 0;
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
}

.badge--new   { background: #E8F5E9; color: #2E7D32; }
.badge--update{ background: #E3F2FD; color: #1565C0; }
.badge--guide { background: #F3E5F5; color: #6A1B9A; }

.article-item__title {
    flex: 1;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
    line-height: 1.6;
}

.article-item:hover .article-item__title { color: var(--color-primary); }

.article-item__meta {
    flex-shrink: 0;
    font-size: 12px;
    color: var(--color-text-muted);
}

.article-item__arrow {
    flex-shrink: 0;
    color: var(--color-border);
    font-size: 13px;
    transition: color var(--transition);
}

.article-item:hover .article-item__arrow { color: var(--color-primary); }

/* ========================================
   お知らせ・インフォボックス
======================================== */
.info-boxes {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 40px;
}

.info-box {
    background: var(--color-bg-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.info-box__head {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 20px;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    font-size: 14px;
    font-weight: 700;
    color: var(--color-text);
}

.info-box__head-icon { font-size: 16px; }

.info-box__body { padding: 4px 0; }

.info-box__item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 20px;
    border-bottom: 1px solid var(--color-border);
    text-decoration: none;
    transition: background var(--transition);
}

.info-box__item:last-child { border-bottom: none; }
.info-box__item:hover { background: var(--color-primary-light); }

.info-box__date {
    flex-shrink: 0;
    font-size: 12px;
    color: var(--color-text-muted);
    padding-top: 2px;
    min-width: 80px;
}

.info-box__text {
    font-size: 13px;
    color: var(--color-text);
    line-height: 1.6;
}

.info-box__item:hover .info-box__text { color: var(--color-primary); }

/* ========================================
   記事詳細ページ
======================================== */
.content-layout {
    display: grid;
    grid-template-columns: 1fr var(--sidebar-width);
    gap: 32px;
    align-items: start;
    padding: 40px 0;
}

.article-wrap {
    background: var(--color-bg-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.article-header {
    padding: 32px 40px 24px;
    border-bottom: 1px solid var(--color-border);
}

.article-category {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    background: var(--color-primary-light);
    color: var(--color-primary);
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 12px;
    text-decoration: none;
}

.article-title {
    font-size: clamp(18px, 3vw, 24px);
    font-weight: 700;
    color: var(--color-text);
    line-height: 1.4;
    margin-bottom: 16px;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 13px;
    color: var(--color-text-muted);
    flex-wrap: wrap;
}

.article-meta__item { display: flex; align-items: center; gap: 4px; }

.article-body {
    padding: 40px;
    line-height: 1.9;
}

/* 記事本文スタイル */
.article-body h2 {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-text);
    border-left: 4px solid var(--color-primary);
    padding: 8px 16px;
    background: var(--color-primary-light);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    margin: 40px 0 20px;
}

.article-body h3 {
    font-size: 17px;
    font-weight: 700;
    color: var(--color-text);
    padding-bottom: 8px;
    border-bottom: 2px solid var(--color-border);
    margin: 32px 0 16px;
}

.article-body h4 {
    font-size: 15px;
    font-weight: 700;
    color: var(--color-text);
    margin: 24px 0 12px;
}

.article-body p {
    margin-bottom: 16px;
    color: var(--color-text);
}

.article-body ul,
.article-body ol {
    margin: 16px 0;
    padding-left: 24px;
}

.article-body ul { list-style: disc; }
.article-body ol { list-style: decimal; }

.article-body li {
    margin-bottom: 8px;
    color: var(--color-text);
}

.article-body a {
    color: var(--color-primary);
    text-decoration: underline;
}

.article-body strong { font-weight: 700; }
.article-body em { font-style: italic; }

.article-body img {
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    margin: 20px auto;
    box-shadow: var(--shadow-sm);
}

.article-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    font-size: 14px;
}

.article-body th {
    background: var(--color-bg);
    padding: 10px 14px;
    text-align: left;
    font-weight: 600;
    border: 1px solid var(--color-border);
    color: var(--color-text);
}

.article-body td {
    padding: 10px 14px;
    border: 1px solid var(--color-border);
    color: var(--color-text);
    vertical-align: top;
}

.article-body tr:nth-child(even) td { background: var(--color-bg); }

.article-body blockquote {
    border-left: 4px solid var(--color-primary);
    padding: 12px 20px;
    background: var(--color-primary-light);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    margin: 20px 0;
    color: var(--color-text-sub);
}

.article-body code {
    background: #F1F3F5;
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Courier New', Courier, monospace;
    font-size: 13px;
    color: #C7254E;
}

.article-body pre {
    background: #1F2D3D;
    color: #E8EDF3;
    padding: 20px 24px;
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin: 20px 0;
    font-size: 13px;
    line-height: 1.7;
}

.article-body pre code {
    background: none;
    color: inherit;
    padding: 0;
    font-size: inherit;
}

/* ノート・警告ボックス */
.article-body .note,
.article-body .wp-block-info {
    background: #E8F4FD;
    border-left: 4px solid var(--color-accent);
    padding: 14px 18px;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    margin: 20px 0;
    font-size: 14px;
}

.article-body .warning {
    background: #FFF8E1;
    border-left: 4px solid var(--color-warning);
    padding: 14px 18px;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    margin: 20px 0;
    font-size: 14px;
}

/* 手順ステップ */
.steps { counter-reset: step; margin: 24px 0; }

.step {
    display: flex;
    gap: 16px;
    margin-bottom: 20px;
}

.step__num {
    counter-increment: step;
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    background: var(--color-primary);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 700;
    margin-top: 2px;
}

.step__body { flex: 1; }
.step__title { font-weight: 700; margin-bottom: 8px; }

/* フィードバック */
.article-feedback {
    padding: 24px 40px;
    border-top: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    background: var(--color-bg);
}

.article-feedback__label { font-size: 14px; font-weight: 600; color: var(--color-text); }

.feedback-btns { display: flex; gap: 8px; }

.btn-feedback {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 18px;
    border: 1px solid var(--color-border);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
    font-family: var(--font-sans);
    background: #fff;
    cursor: pointer;
    color: var(--color-text-sub);
    transition: all var(--transition);
}

.btn-feedback:hover { border-color: var(--color-primary); color: var(--color-primary); }
.btn-feedback.is-yes:hover { background: #E8F5E9; border-color: #34A853; color: #2E7D32; }
.btn-feedback.is-no:hover  { background: #FDECEA; border-color: #EA4335; color: #C62828; }

/* ページナビ */
.article-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 24px;
}

.article-nav__item {
    background: var(--color-bg-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 16px 20px;
    text-decoration: none;
    transition: box-shadow var(--transition), border-color var(--transition);
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.article-nav__item:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-sm);
    text-decoration: none;
}

.article-nav__dir {
    font-size: 11px;
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.article-nav__title {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text);
    line-height: 1.5;
}

.article-nav__item:hover .article-nav__title { color: var(--color-primary); }

.article-nav__item--prev { text-align: left; }
.article-nav__item--next { text-align: right; }

/* ========================================
   サイドバー
======================================== */
.sidebar {
    position: sticky;
    top: calc(var(--header-height) + 24px);
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.sidebar-widget {
    background: var(--color-bg-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.sidebar-widget__title {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 18px;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    font-size: 13px;
    font-weight: 700;
    color: var(--color-text);
}

.sidebar-widget__body { padding: 8px 0; }

.sidebar-menu__item a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 18px;
    font-size: 13px;
    color: var(--color-text-sub);
    text-decoration: none;
    transition: background var(--transition), color var(--transition);
    gap: 8px;
}

.sidebar-menu__item a:hover,
.sidebar-menu__item.current-cat a,
.sidebar-menu__item.current-menu-item a {
    background: var(--color-primary-light);
    color: var(--color-primary);
    text-decoration: none;
}

.sidebar-menu__count {
    font-size: 11px;
    background: var(--color-border);
    color: var(--color-text-muted);
    padding: 2px 7px;
    border-radius: 10px;
    flex-shrink: 0;
}

/* 目次 */
.toc {
    padding: 16px 18px;
}

.toc__title {
    font-size: 13px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.toc__list {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.toc__list a {
    font-size: 12px;
    color: var(--color-text-sub);
    display: block;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    text-decoration: none;
    transition: background var(--transition), color var(--transition);
    line-height: 1.5;
}

.toc__list a:hover { background: var(--color-primary-light); color: var(--color-primary); }

.toc__list--h3 { padding-left: 12px; }

/* ========================================
   検索結果
======================================== */
.search-header {
    background: var(--color-bg-white);
    border-bottom: 1px solid var(--color-border);
    padding: 24px 0;
}

.search-header__title {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 4px;
}

.search-header__count { font-size: 14px; color: var(--color-text-sub); }

.search-results {
    padding: 32px 0;
}

.search-result-item {
    background: var(--color-bg-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 20px 24px;
    margin-bottom: 16px;
    text-decoration: none;
    display: block;
    transition: box-shadow var(--transition), border-color var(--transition);
}

.search-result-item:hover {
    box-shadow: var(--shadow-sm);
    border-color: var(--color-primary);
    text-decoration: none;
}

.search-result-item__title {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 8px;
}

.search-result-item:hover .search-result-item__title { text-decoration: underline; }

.search-result-item__excerpt {
    font-size: 13px;
    color: var(--color-text-sub);
    line-height: 1.7;
    margin-bottom: 8px;
}

.search-result-item__meta {
    display: flex;
    gap: 12px;
    font-size: 12px;
    color: var(--color-text-muted);
}

/* ========================================
   ページネーション
======================================== */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 6px;
    padding: 32px 0;
}

.pagination a,
.pagination span {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    border: 1px solid var(--color-border);
    background: var(--color-bg-white);
    color: var(--color-text-sub);
    text-decoration: none;
    transition: all var(--transition);
}

.pagination a:hover { border-color: var(--color-primary); color: var(--color-primary); text-decoration: none; }
.pagination .current { background: var(--color-primary); border-color: var(--color-primary); color: #fff; }

/* ========================================
   フッター
======================================== */
.site-footer {
    background: var(--color-bg-dark);
    color: rgba(255,255,255,.8);
    padding: 48px 0 0;
    margin-top: auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr repeat(3, auto);
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,.1);
}

.footer-brand {}

.footer-brand__logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
    text-decoration: none;
}

.footer-brand__icon {
    width: 36px;
    height: 36px;
    background: var(--color-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    font-size: 16px;
}

.footer-brand__name {
    font-size: 15px;
    font-weight: 700;
    color: #fff;
}

.footer-brand__desc {
    font-size: 13px;
    color: rgba(255,255,255,.5);
    line-height: 1.7;
    max-width: 260px;
}

.footer-col__title {
    font-size: 12px;
    font-weight: 700;
    color: rgba(255,255,255,.4);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.footer-col ul { display: flex; flex-direction: column; gap: 10px; }

.footer-col a {
    font-size: 13px;
    color: rgba(255,255,255,.7);
    text-decoration: none;
    transition: color var(--transition);
}

.footer-col a:hover { color: #fff; text-decoration: none; }

.footer-bottom {
    padding: 20px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 12px;
    color: rgba(255,255,255,.4);
    gap: 16px;
    flex-wrap: wrap;
}

.footer-bottom a { color: rgba(255,255,255,.4); text-decoration: none; }
.footer-bottom a:hover { color: rgba(255,255,255,.7); }

/* ========================================
   ユーティリティ
======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 600;
    font-family: var(--font-sans);
    cursor: pointer;
    border: none;
    transition: all var(--transition);
    text-decoration: none;
}

.btn--primary { background: var(--color-primary); color: #fff; }
.btn--primary:hover { background: var(--color-primary-dark); color: #fff; text-decoration: none; }

.btn--outline {
    background: transparent;
    border: 1px solid var(--color-primary);
    color: var(--color-primary);
}
.btn--outline:hover { background: var(--color-primary-light); text-decoration: none; }

.btn--sm { padding: 6px 14px; font-size: 13px; }
.btn--lg { padding: 14px 28px; font-size: 16px; }

.text-muted { color: var(--color-text-muted); }
.text-center { text-align: center; }
.mt-8  { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mb-8  { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }

/* スクリーンリーダー専用 */
.sr-only {
    position: absolute;
    width: 1px; height: 1px;
    padding: 0; margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    border: 0;
}

/* ========================================
   レスポンシブ
======================================== */
@media (max-width: 1024px) {
    .card-grid--3col { grid-template-columns: repeat(2, 1fr); }
    .info-boxes { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .content-layout { grid-template-columns: 1fr; }
    .sidebar { position: static; }
}

@media (max-width: 768px) {
    :root { --font-size-base: 14px; }
    .container { padding: 0 16px; }
    .card-grid--3col,
    .card-grid--2col,
    .card-grid { grid-template-columns: 1fr; }
    .article-nav { grid-template-columns: 1fr; }
    .article-body { padding: 24px 20px; }
    .article-header { padding: 24px 20px 20px; }
    .header-search { display: none; }
    .header-nav { display: none; }
    .menu-toggle { display: block; }
    .hero { padding: 36px 0 32px; }
    .footer-grid { grid-template-columns: 1fr; gap: 24px; }
}

/* ========================================
   モバイルメニュー
======================================== */
.mobile-nav {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 2000;
    background: rgba(0,0,0,.5);
}

.mobile-nav.is-open { display: flex; }

.mobile-nav__panel {
    background: var(--color-bg-white);
    width: 280px;
    height: 100%;
    padding: 24px 0;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

.mobile-nav__close {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px 20px;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 8px;
}

.mobile-nav__title { font-size: 15px; font-weight: 700; }

.mobile-nav__close-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 20px;
    color: var(--color-text-sub);
    padding: 4px;
}

.mobile-nav__menu a {
    display: block;
    padding: 14px 24px;
    font-size: 14px;
    color: var(--color-text);
    border-bottom: 1px solid var(--color-border);
    text-decoration: none;
}

.mobile-nav__menu a:hover { background: var(--color-primary-light); color: var(--color-primary); }

.mobile-search {
    padding: 16px 20px;
    border-bottom: 1px solid var(--color-border);
}

.mobile-search form { display: flex; gap: 8px; }

.mobile-search input {
    flex: 1;
    height: 40px;
    padding: 0 14px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 14px;
    font-family: var(--font-sans);
    outline: none;
}

.mobile-search button {
    height: 40px;
    padding: 0 16px;
    background: var(--color-primary);
    color: #fff;
    border: none;
    border-radius: var(--radius-md);
    font-size: 13px;
    font-family: var(--font-sans);
    cursor: pointer;
}