/*
Theme Name: OptiCode Lab
Author: Admin
Description: だれもが使える、最適化されたサイトを構築するための技術研究所テーマ
Version: 1.0.0
*/

@charset "UTF-8";

/* =========================================
    1. Variables & Reset
    ========================================= */
/* --- 変数定義 --- */
:root {
    --vscode-blue: #4DA3FF;
    --vscode-yellow: #FFD166;
    --bg-white: #ffffff;
    --bg-light: #f8f9fa;
    --bg-dark: #0f172a;
    --text-main: #1e1e1e;
    --text-gray: #6a737d;
    --border-color: #e1e4e8;
    --container-width: 1100px;
    --header-height: 70px;
    /* SQL Editor Colors */
    --sql-bg: #1e1e1e;
    --sql-keyword: #569cd6;
    --sql-string: #ce9178;
    --sql-func: #dcdcaa;
    --sql-comment: #6a9955;
    --sql-line: #858585;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Noto Sans JP', sans-serif;
    color: var(--text-main);
    background-color: var(--bg-white);
    line-height: 1.7;
    background-image: radial-gradient(var(--border-color) 1px, transparent 1px);
    background-size: 24px 24px;
    scroll-behavior: smooth; /* スムーズスクロール */
}

/* Screen Reader Only Class (H1を隠すためのクラス) */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

a {
    text-decoration: none;
    color: inherit;
    transition: 0.3s;
}

ul {
    list-style: none;
}

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

.container {
    max-width: var(--container-width);
    margin: 0 auto;
}

.mono {
    font-family: 'JetBrains Mono', monospace;
}

/* =========================================
    2. Header (Global)
    ========================================= */
.site-header {
    background: var(--bg-white);
    opacity: 0.9;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    height: var(--header-height);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: var(--header-height);
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    font-family: 'JetBrains Mono', monospace;
}

.logo-text span.blue { color: var(--vscode-blue); }
.logo-text span.yellow { color: var(--vscode-yellow); }
.logo-text span.gray { color: var(--text-gray); opacity: 0.4; }

.site-desc {
    font-size: 10px;
    color: var(--text-gray);
    display: block;
    margin-top: -4px;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 24px;
    font-size: 14px;
    font-weight: 700;
    list-style: none;
    font-family: 'JetBrains Mono', monospace;
}

.nav-list a:hover {
    color: var(--vscode-blue);
}

.nav-hamburger {
    display: none;
    text-align: center;
}

 .nav-sp {
    display: none;
 }

.icon-x {
    width: 1.25rem;
    height: 1.25rem;
    display: block;
}

.btn-contact a {
    background: var(--vscode-blue);
    color: #fff !important;
    padding: 8px 20px;
    border-radius: 6px;
}

.btn-contact a:hover {
    opacity: 0.7;
}

/* サイト全体の横スクロールを防止 */
html, body {
    overflow-x: clip;
}

/* ハンバーガーメニュー */
.menu-trigger {
    display: none; /* デスクトップでは隠す */
    position: relative;
    width: 30px;
    height: 24px;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 200;
}

.menu-trigger span {
    display: block;
    position: absolute;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--text-main);
    transition: all 0.4s;
}

.menu-trigger span:nth-child(1) { top: 0; }
.menu-trigger span:nth-child(2) { top: 11px; }
.menu-trigger span:nth-child(3) { bottom: 0; }

/* 展開時の「×」アニメーション */
.is-active .menu-trigger span:nth-child(1) {
    transform: translateY(11px) rotate(-45deg);
}
.is-active .menu-trigger span:nth-child(2) {
    opacity: 0;
}
.is-active .menu-trigger span:nth-child(3) {
    transform: translateY(-11px) rotate(45deg);
}

/* --- キービジュアル --- */
.hero-banner {
    position: relative;
    background: var(--bg-dark);
    border-radius: 20px;
    overflow: hidden;
    aspect-ratio: 16 / 7;
    display: flex;
    align-items: center;
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
}

.hero-img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.5;
    transition: 0.3s;
}

.hero-banner:hover .hero-img {
    transform: scale(1.05);
}

.hero-content {
    position: relative;
    z-index: 1;
    padding: 0 60px;
    color: #fff;
    max-width: 800px;
}

.hero-label {
    color: var(--vscode-blue);
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.1em;
    margin-bottom: 8px;
    display: block;
}

.hero-title {
    font-family: 'Noto Sans JP', sans-serif;
    font-size: clamp(1.8rem, 5vw, 3rem);
    line-height: 1.2;
    margin-bottom: 20px;
}

.hero-title::before {
    content: "";
}

.hero-title span {
    color: var(--vscode-yellow);
}

.hero-btn {
    background: var(--vscode-blue);
    color: #fff;
    padding: 12px 32px;
    border-radius: 8px;
    font-weight: 700;
    display: inline-block;
}

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

/* --- セクション共通 --- */
section {
    padding-top: 40px;
}

/* 最初の要素のみ余白を少なく */
section:nth-child(1) {
    padding-top: 20px;
}

/* 最後の要素のみ余白を空ける */
section:last-child {
    padding-bottom: 100px;
}

h2.comment-text {
    font-size: 1.5rem;
    font-family: 'JetBrains Mono', monospace;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 40px;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 10px;
}

.view-all {
    font-size: 12px;
    font-weight: 700;
    color: var(--vscode-blue);
}

.view-all:hover {
    text-decoration: underline;
}

h2.comment-text::before {
    content: "\002F\002F  ";
    color: var(--vscode-blue);
}

/* --- カードレイアウト --- */
.post-grid {
    display: grid;
    gap: 30px;
}

.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    transition: 0.3s;
}

.card a {
    display: block;
    height: 100%;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.05);
}

.card-img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
}

.card-body {
    padding: 20px;
}

.card-tag {
    background: #f1f8ff;
    color: var(--vscode-blue);
    font-size: 11px;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 4px;
}

.card-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 10px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-date {
    font-size: 11px;
    color: var(--text-gray);
    font-family: 'JetBrains Mono', monospace;
}

/* Blog */
#blog {
    margin-top: 40px;
    padding-bottom: 40px;
    background: var(--bg-light);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

/* --- Works (Big Cards) --- */
.works-card .card-img {
    aspect-ratio: 16 / 9;
}

.works-card .card-title {
    font-size: 1.4rem;
}

/* --- About --- */

#about {
    margin-top: 40px;
    padding-bottom: 40px;
    background: var(--bg-dark);
    color: #fff;
}

#about .wp-block-group__inner-container {
    margin: 0 auto;
}

.about-section {
    color: #fff;
    padding: 60px;
    display: flex;
    align-items: center;
    gap: 60px;
}

#about .wp-block-columns {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 60px;
    max-width: 56rem;
}

#about .wp-block-column:nth-child(1) {
    display: flex;
    align-items: center;
}

#about figure {
    position: relative;
    flex-shrink: 0;
}

#about figure::after {
    content: "";
    position: absolute;
    inset: 10px -10px -10px 10px;
    border: 2px solid var(--vscode-blue);
    border-radius: 20px;
    z-index: 0;
    max-width: 240px;
}

#about img {
    width: 240px;
    height: 240px;
    border-radius: 20px;
    object-fit: cover;
    position: relative;
    z-index: 1;
    background: #1e293b;
}

#about h2 {
font-family: 'JetBrains Mono', monospace;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 20px;
}

#about h2::before {
    content: "\002F\002F  ";
    color: var(--vscode-blue);
}

#about h3 {
    color: var(--vscode-yellow);
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 15px;
}

#about p {
    color: var(--text-gray);
    margin-bottom: 30px;
}

#about a {
    border: 1px solid var(--text-gray);
    border-radius: 0.25rem;
    padding: 0.25rem 1rem;
    color: #fff;
    display: inline-block;
    margin-right: 10px;
}

#about a:hover {
    background-color: var(--text-gray);
}

/* --- Contact --- */
#contact {
    text-align: center;
    padding-top: 100px;;
}

#contact h2 {
    font-size: 3rem;
    margin-bottom: 20px;
}

#contact h2::before {
    content: "";
}

.contact-btn {
    background: var(--vscode-blue);
    color: #fff;
    padding: 16px 48px;
    border-radius: 12px;
    font-size: 1.2rem;
    font-weight: 700;
    display: inline-block;
    box-shadow: 0 10px 20px rgba(77, 163, 255, 0.3);
}

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

.link-arrow::after {
    content: " \2192";
}
#contact p {
    margin-bottom: 20px;
}

/* =========================================
    3. Archive Specific Styles
    ========================================= */

/* Breadcrumb */
.breadcrumb { padding: 20px 0 0; font-size: 12px; color: var(--text-gray); }
.breadcrumb-list { display: flex; flex-wrap: wrap; }
.breadcrumb-item + .breadcrumb-item::before { content: ">"; margin: 0 10px; color: var(--text-gray); font-size: 10px; }
.breadcrumb-item a:hover { color: var(--vscode-blue); }
.breadcrumb-item.current { color: var(--text-main); font-weight: 700; }

/* Archive Header */
.archive-header {
    padding: 40px 0;
    background: var(--bg-light);
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 50px;
}
.archive-title { color: var(--vscode-blue); font-size: 2.5rem; margin-bottom: 15px; letter-spacing: -0.02em; font-family: 'JetBrains Mono', monospace; }
.archive-category .archive-title::before { content: "\002F"; color: var(--text-gray); opacity: 0.4; margin-right: 5px; font-weight: 400; }
.archive-description { color: var(--text-gray); font-size: 0.95rem; max-width: 700px; }
.archive-tag .archive-title::before { content: "\0040"; color: var(--text-gray); opacity: 0.4; margin-right: 5px; font-weight: 400; }
.archive-title.category-title { color: var(--vscode-yellow);}
/* Layout Grid */
.archive-container {
    display: grid;
    grid-template-columns: 1fr 320px; /* Main : Sidebar */
    gap: 60px;
    margin-bottom: 100px;
}

/* --- Main Content: Post List --- */
.archive-list { display: flex; flex-direction: column; gap: 40px; }

.horizontal-card {
    display: flex; gap: 24px;
    background: var(--bg-white);
    border: 1px solid transparent; /* ボーダーのちらつき防止 */
    border-radius: 8px;
    padding: 0;
    transition: transform 0.3s, box-shadow 0.3s;
}

.card-thumb {
    flex-shrink: 0; width: 260px; aspect-ratio: 16 / 9;
    border-radius: 8px; overflow: hidden; border: 1px solid var(--border-color);
}
.card-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.horizontal-card:hover .card-thumb img { transform: scale(1.05); }

.horizontal-card .card-body { flex-grow: 1; padding: 5px 0; display: flex; flex-direction: column; }

.tag-wrap { margin-bottom: 10px; }
.card-tag {
    background: #f1f8ff; color: var(--vscode-blue);
    font-size: 11px; font-weight: 700; padding: 3px 8px;
    border-radius: 4px; display: inline-block; margin-right: 5px;
}

.horizontal-card .card-title { font-size: 1.4rem; font-weight: 700; margin-bottom: 10px; line-height: 1.4; min-height: 2.8em; }
.horizontal-card .card-excerpt { font-size: 0.9rem; color: var(--text-gray); margin-bottom: auto; line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; min-height: 4.8em; }
.horizontal-card .card-meta { margin-top: 15px; font-size: 12px; color: var(--text-gray); display: flex; align-items: center; gap: 10px; }

/* Pagination */
.pagination { display: flex; justify-content: center; gap: 8px; margin-top: 60px; }
.page-numbers {
    width: 40px; height: 40px; display: flex; align-items: center; justify-content: center;
    border: 1px solid var(--border-color); border-radius: 6px; font-size: 14px;
    transition: 0.3s;
}
.page-numbers:hover, .page-numbers.current {
    background: var(--vscode-blue); color: #fff; border-color: var(--vscode-blue);
}

/* --- Sidebar --- */
.sidebar { display: flex; flex-direction: column; gap: 50px; }

.widget-title {
    font-size: 14px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em;
    margin-bottom: 20px; padding-bottom: 8px; border-bottom: 2px solid var(--text-main);
    display: flex; align-items: center;
}
.widget-title::before { content: ""; width: 8px; height: 8px; background: var(--vscode-blue); margin-right: 10px; }

/* 1. Search */
.search-form { display: flex; border: 1px solid var(--border-color); border-radius: 6px; overflow: hidden; }
.search-form input { font-family: 'JetBrains Mono', monospace; border: none; padding: 12px; flex-grow: 1; outline: none; font-size: 14px; }
.search-form button { font-family: 'JetBrains Mono', monospace;  background: var(--vscode-blue); color: #fff; border: none; padding: 0 15px; cursor: pointer; font-weight: 700; margin: 0; }
.search-form button:hover { opacity: 0.7; }

/* 2. Popular Posts */
.mini-post-list { display: flex; flex-direction: column; gap: 15px; }
.mini-post-item { display: flex; gap: 12px; align-items: flex-start; }
.mini-post-thumb { width: 70px; height: 70px; border-radius: 6px; object-fit: cover; flex-shrink: 0; border: 1px solid var(--border-color); }
.mini-post-title { font-size: 13px; font-weight: 700; line-height: 1.5; }
.mini-post-item:hover .mini-post-title { color: var(--vscode-blue); }

/* 3. Categories */
.category-list li { display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid var(--border-color); }
.category-list a { padding: 12px 0; font-size: 14px; width: 85%; }
.category-list a:hover { color: var(--vscode-blue); padding-left: 5px; } /* 微妙な動き */
.cat-count { background: var(--bg-light); padding: 2px 8px; border-radius: 10px; font-size: 11px; color: var(--text-gray); }

/* 4. Profile */
.profile-widget { text-align: center; background: var(--bg-white); border: 1px solid var(--border-color); padding: 30px 20px; border-radius: 12px; }
.profile-icon { display: inline; width: 120px; height: 120px; border-radius: 50%; margin-bottom: 15px; border: 2px solid var(--border-color); padding: 2px; }
.profile-name { font-weight: 700; font-size: 1.1rem; margin-bottom: 5px; }
.profile-desc { font-size: 13px; color: var(--text-gray); line-height: 1.6; margin-bottom: 20px; }
.profile-link { font-size: 12px; color: var(--vscode-blue); font-weight: 700; letter-spacing: 0.05em; }
.profile-link:hover { text-decoration: underline; }

/* 5. Contact Button */
.sidebar-contact-btn {
    display: flex; justify-content: center; align-items: center; gap: 10px;
    width: 100%; padding: 16px; background: var(--vscode-blue);
    color: #fff; border-radius: 8px; font-weight: 700; font-size: 14px;
    box-shadow: 0 4px 15px rgba(77, 163, 255, 0.3); transition: 0.3s;
}
.sidebar-contact-btn:hover { opacity: 0.7; }

/* =========================================
    4. single
    ========================================= */
.single-layout main {
    min-width: 0;
}
.single-layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 60px;
    margin-bottom: 100px;
}
.post-header { margin-bottom: 40px; }
.post-category { 
    color: var(--vscode-yellow); font-weight: 700; font-size: 1.4rem; 
    margin-top: 10px; display: inline-block;
}

.post-title { font-size: 2.2rem; line-height: 1.3; margin-bottom: 20px; letter-spacing: -0.02em; font-weight: 700; }
.post-title::before { content: "# "; color: var(--text-gray); opacity: 0.4; font-family: 'JetBrains Mono'; font-weight: 400; margin-right: 0.2em; }

.post-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 20px; font-size: 13px; color: var(--text-gray); }
.post-meta time span { font-weight: 700; color: var(--text-main); margin-right: 5px; }

.post-thumbnail { 
    margin-bottom: 50px; border-radius: 12px; overflow: hidden; 
    border: 1px solid var(--border-color);
}
.post-thumbnail img { height: auto; width: 100%; }

/* --- Post Content Styling (Markdown Like) --- */
.post-content { font-size: 16px; color: var(--text-main); }

/* Scroll Offset Fix */
.post-content h2, .post-content h3, .post-content h4 {
    scroll-margin-top: calc(var(--header-height) - 30px);
}

/* Headings */
.post-content h2 { 
    font-size: 1.6rem; margin: 60px 0 20px; padding-bottom: 10px; 
    border-bottom: 2px solid var(--border-color); font-weight: 700;
}
.post-content h2::before { content: "## "; color: var(--vscode-blue); font-family: 'JetBrains Mono'; font-weight: 400; margin-right: 0.3em; }

.post-content h3 { font-size: 1.3rem; margin: 40px 0 15px; font-weight: 700; }
.post-content h3::before { content: "### "; color: var(--vscode-yellow); font-family: 'JetBrains Mono'; font-weight: 400; margin-right: 0.3em; }

.post-content h4 { font-size: 1.1rem; margin: 30px 0 10px; font-weight: 700; }

.post-content p { margin-bottom: 1.8em; }

/* Inline Link Style */
.post-content p a:not([class]) {
    color: var(--vscode-blue); text-decoration: underline; text-underline-offset: 3px;
    text-decoration-color: rgba(77, 163, 255, 0.4); font-weight: 700; transition: all 0.2s;
}
.post-content p a:not([class]):hover,
.post-content li a:not([class]):hover {
    text-decoration-color: var(--vscode-blue); background: rgba(77, 163, 255, 0.1); border-radius: 2px;
}

/* Markdown List Styles (-) */
.post-content ul { margin-bottom: 1.8em; padding-left: 0.5em; list-style: none; }
.post-content ul li { position: relative; padding-left: 1.5em; margin-bottom: 0.5em; }
.post-content ul li::before { 
    content: "-"; position: absolute; left: 0; 
    color: var(--vscode-blue); font-family: 'JetBrains Mono'; font-weight: 700;
}

/* Ordered List Styles */
.post-content ol { margin-bottom: 1.8em; padding-left: 1.5em; counter-reset: opti-counter; list-style: none; }
.post-content ol li { position: relative; padding-left: 2em; margin-bottom: 1em; counter-increment: opti-counter; }
.post-content ol li::before {
    content: counter(opti-counter) ".";
    position: absolute; left: 0; top: 0;
    color: var(--vscode-blue); font-family: 'JetBrains Mono'; font-weight: 700;
    font-size: 0.9em;
}

/* Figure / Image with Caption */
.post-content figure { margin: 40px 0; }
.post-content figure img { border-radius: 8px; border: 1px solid var(--border-color); }
.post-content figcaption {
    margin-top: 12px; text-align: center; font-size: 13px; color: var(--text-gray);
    font-family: 'JetBrains Mono', monospace; display: flex; align-items: center; justify-content: center; gap: 8px;
}
.post-content figcaption::before { content: "["; color: var(--vscode-blue); }
.post-content figcaption::after { content: "]"; color: var(--vscode-blue); }

/* Code Blocks (Adjusted for Highlight.js) */
.post-content code { 
    /* Inline code */
    background: var(--bg-light); padding: 2px 6px; 
    border-radius: 4px; font-family: 'JetBrains Mono'; font-size: 0.9em;
    color: #d946ef;
}

.post-content pre {
    /* Wrapper for code block */
    margin-bottom: 30px;
    border-radius: 8px;
    overflow: hidden; /* Important for rounding corners with highlight.js */
}

/* Highlight.js applies background to <code> inside <pre>, so we adjust styling here */
.post-content pre code.hljs {
    padding: 20px;
    font-family: 'JetBrains Mono';
    font-size: 14px;
    line-height: 1.6;
    background: #1e1e1e; /* VS Code Dark background */
}

/* Blockquote */
.post-content blockquote {
    border-left: 4px solid var(--vscode-blue); background: var(--bg-light);
    padding: 20px; margin: 0 0 30px; color: var(--text-gray); font-style: italic;
}

/* Table */
.post-content table {
    width: 100%; border-collapse: collapse; margin-bottom: 30px; font-size: 0.95em;
}
.post-content th, .post-content td { border: 1px solid var(--border-color); padding: 12px; }
.post-content th { background: var(--bg-light); font-weight: 700; text-align: left; }

/* Form Styles (Contact Form 7 などを想定) */
.post-content input[type="text"],
.post-content input[type="email"],
.post-content textarea {
    width: 100%;
    padding: 15px;
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-family: inherit;
    font-size: 16px;
    background: var(--bg-light);
    transition: 0.3s;
}
.post-content input:focus,
.post-content textarea:focus {
    outline: none;
    border-color: var(--vscode-blue);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(77, 163, 255, 0.1);
}
.post-content label {
    display: block;
    margin-bottom: 8px;
    font-weight: 700;
    font-size: 14px;
}
.post-content span.required {
    color: #ef4444;
    margin-left: 4px;
}
.post-content button, 
.post-content input[type="submit"] {
    display: inline-block; background: var(--vscode-blue); color: #fff;
    padding: 12px 40px; border-radius: 6px; font-weight: 700; text-decoration: none;
    border: none; cursor: pointer; transition: 0.3s; font-size: 16px;
}
.post-content button:hover,
.post-content input[type="submit"]:hover { opacity: 0.7; }


.wp-block-search__label { width: auto; }
.wp-block-table thead { border: 1px solid var(--border-color); }


/* --- Standard Modules --- */

/* Table of Contents */
.opti-toc {
    background-color: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: 8px; padding: 25px; margin: 0 0 40px 0;
}
.opti-toc__title {
    font-size: 14px; font-weight: 700; margin-bottom: 15px;
    font-family: 'JetBrains Mono', monospace; display: flex; align-items: center; color: var(--text-main);
}
.opti-toc__title::before { content: ":: "; color: var(--vscode-blue); margin-right: 5px; }

.opti-toc__list { list-style: none !important; padding: 0 !important; margin: 0 !important; }
.opti-toc__list li { list-style: none !important; padding-left: 0 !important; margin-bottom: 8px !important; font-size: 14px; }
.opti-toc__list li::before { content: none !important; }
.opti-toc__list > li > a { font-weight: 700; text-decoration: none; }
.opti-toc__list > li > a:hover { opacity: 0.8; }
.opti-toc__list ul { list-style: none !important; padding-left: 20px !important; margin: 5px 0 !important; }
.opti-toc__list ul li { margin-bottom: 5px !important; font-size: 13px; }
.opti-toc__list ul li::before { content: "-" !important; position: static !important; margin-right: 5px; color: var(--text-gray); }

/* Link Card */
.opti-link-card {
    display: flex; gap: 20px; align-items: center; border: 1px solid var(--border-color);
    border-radius: 8px; padding: 15px; margin: 30px 0; background: #fff; text-decoration: none;
    transition: 0.3s;
}
.opti-link-card:hover { border-color: var(--vscode-blue); transform: translateY(-2px); }
.opti-link-card__thumb {
    width: 120px; aspect-ratio: 16/9; object-fit: cover;
    border-radius: 4px; background: var(--bg-light); flex-shrink: 0;
}
.opti-link-card__body { flex-grow: 1; }
.opti-link-card__title { font-weight: 700; font-size: 1rem; margin-bottom: 5px; color: var(--text-main); }
.opti-link-card__meta { font-size: 12px; color: var(--text-gray); display: flex; align-items: center; gap: 5px; }
.opti-link-card__meta::before { content: "🔗"; font-size: 10px; }

/* Button */
.opti-btn {
    display: inline-block; background: var(--vscode-blue); color: #fff !important;
    padding: 12px 30px; border-radius: 6px; font-weight: 700; text-decoration: none;
    margin: 20px 0; transition: 0.3s;
}
.opti-btn:hover { opacity: 0.7; }

/* --- Post Footer Elements --- */
.post-tags { margin: 60px 0 40px; padding-top: 20px; border-top: 1px solid var(--border-color); }
.card-tag {
    background: #f1f8ff; color: var(--vscode-blue); font-size: 12px; font-weight: 700;
    padding: 4px 12px; border-radius: 4px; display: inline-block; margin-right: 8px; text-decoration: none;
}
.card-tag::before { content: "@"; opacity: 0.6; margin-right: 2px; }

.related-section {
    margin-top: 60px; padding: 25px; background-color: var(--bg-light);
    border-radius: 12px; border: 1px solid var(--border-color);
}
.related-title { font-size: 1.1rem; margin-bottom: 20px; display: flex; align-items: center; }
.related-title::before {
    content: "SEE ALSO"; font-family: 'JetBrains Mono'; font-size: 12px;
    background: var(--vscode-yellow); color: var(--bg-dark);
    padding: 2px 8px; margin-right: 15px; border-radius: 4px; font-weight: 700;
}
.related-list { display: flex; flex-direction: column; gap: 12px; }
.related-item { display: flex; align-items: baseline; gap: 10px; font-size: 15px; font-weight: 700; }
.related-item::before { content: "\2192"; color: var(--vscode-blue); font-family: 'JetBrains Mono'; }
.related-item a:hover { color: var(--vscode-blue); text-decoration: underline; }

.post-nav { display: flex; justify-content: space-between; gap: 20px; margin-top: 40px; padding-top: 40px; border-top: 1px solid var(--border-color); }
.nav-link { 
    flex: 1; font-size: 14px; font-weight: 700; text-decoration: none; padding: 20px;
}
.nav-link.prev span::before { content: "\003C "; }
.nav-link span { display: block; font-size: 11px; color: var(--text-gray); margin-bottom: 8px; }
.nav-link.next { text-align: right; }
.nav-link.next span::after { content: " \003E"; }

/* =========================================
    4. page
    ========================================= */
.page-layout {
    max-width: 800px;
    margin: 60px auto 100px;
}
.page-title { font-size: 2.5rem; line-height: 1.3; margin-bottom: 20px; letter-spacing: -0.02em; font-weight: 700; text-align: center; }
.page-title::before { content: "# "; color: var(--text-gray); opacity: 0.4; font-family: 'JetBrains Mono'; font-weight: 400; }

/* =========================================
    3. 404 Page Specific Styles
    ========================================= */

.error-header { text-align: center; }

.error-code {
    font-size: 8rem;
    font-weight: 700;
    line-height: 1;
    color: var(--bg-dark);
    margin-bottom: 20px;
    letter-spacing: -5px;
    text-shadow: 4px 4px 0 var(--border-color);
}

.error-title {
    font-size: 1.5rem;
    margin-bottom: 20px;
    font-weight: 700;
}

.error-content { text-align: center; }

.error-message {
    color: var(--text-gray);
    margin-bottom: 40px;
}

/* 404 Search Box */
.error-search {
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
}
    

/* =========================================
    4. Footer (Global)
    ========================================= */
footer {
    background: var(--bg-light);
    border-top: 1px solid var(--border-color);
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 60px;
}

.footer-logo {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.footer-info p {
    font-size: 13px;
    color: var(--text-gray);
    max-width: 300px;
}
.footer-nav { 
    font-family: 'JetBrains Mono', monospace;
}
.footer-nav h4 {
    color: var(--vscode-blue);
    margin-bottom: 20px;
}

.footer-nav ul li {
    margin-bottom: 10px;
    font-size: 14px;
}

.copyright {
    text-align: center;
    font-size: 11px;
    color: var(--text-gray);
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
    font-family: 'JetBrains Mono', monospace;
}

/* =========================================
    Search Result Header (SQL Design)
    ========================================= */
.breadcrumb { padding: 20px 0 0; font-size: 12px; color: var(--text-gray); }
.breadcrumb-list { display: flex; flex-wrap: wrap; }
.breadcrumb-item + .breadcrumb-item::before { content: ">"; margin: 0 10px; color: var(--border-color); font-size: 10px; }
.breadcrumb-item a:hover { color: var(--vscode-blue); }

.archive-header {
    padding: 60px 0;
    background: var(--bg-light);
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 50px;
}

/* SQL Console Box */
.sql-console {
    background: var(--sql-bg);
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
    overflow: hidden;
    font-family: 'JetBrains Mono', monospace;
    border: 1px solid #333;
}

.sql-header {
    background: #252526;
    padding: 8px 15px;
    display: flex;
    align-items: center;
    gap: 8px;
    border-bottom: 1px solid #333;
}

.sql-dots { display: flex; gap: 6px; }
.sql-dot { width: 10px; height: 10px; border-radius: 50%; background: #5f5f5f; }
.sql-tab { color: #ccc; font-size: 12px; margin-left: 10px; }

.sql-body {
    padding: 20px;
    color: #d4d4d4;
    font-size: 1.1rem;
    line-height: 1.6;
    position: relative;
}

.sql-body::before {
    content: "1\A 2\A 3\A 4";
    white-space: pre;
    position: absolute; left: 15px; top: 20px;
    color: var(--sql-line); text-align: right; opacity: 0.5; font-size: 0.9em; line-height: 1.8;
}

.sql-code { padding-left: 30px; display: block; }

.kwd { color: var(--sql-keyword); font-weight: 700; }
.str { color: var(--sql-string); }
.func { color: var(--sql-func); }
.cmt { color: var(--sql-comment); font-size: 0.9em; display: block; margin-top: 5px; }

.cursor {
    display: inline-block; width: 8px; height: 1.2em; background: #fff;
    vertical-align: text-bottom; animation: blink 1s step-end infinite; margin-left: 2px;
}
@keyframes blink { 50% { opacity: 0; } }

/* Not Found Style for search.php */
.not-found {
    text-align: center;
    padding: 80px 40px;
    background: var(--bg-light);
    border-radius: 8px;
    border: 2px dashed var(--border-color);
    margin-bottom: 60px;
}

.not-found-icon {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--vscode-yellow);
    background: #2d2d2d;
    display: inline-block;
    padding: 8px 16px;
    border-radius: 4px;
    margin-bottom: 25px;
}

.not-found-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--text-main);
    letter-spacing: -0.02em;
}

.not-found-text {
    color: var(--text-gray);
    margin-bottom: 40px;
    line-height: 1.8;
}

/* =========================================
    5. Responsive Styles
    ========================================= */
@media (max-width: 992px) {
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
    .container { padding-right: 20px; padding-left: 20px; }
    .hero-banner { aspect-ratio: 16 / 9; }
    .hero-content { padding: 0 40px; }
    .about-section { flex-direction: column; padding: 40px; }
    .hidden { display: none; }
    .archive-container, .single-layout { grid-template-columns: 1fr; gap: 60px; }
    .sidebar { max-width: 600px; margin: 0 auto; width: 100%; }
}

@media (max-width: 768px) {
    .grid-3, .grid-2 { grid-template-columns: 1fr; }
    .nav-hamburger { display: block; font-size: 1.7rem; }
    .footer-grid { grid-template-columns: 1fr; }
    .hero-title { font-size: 1.2rem; }
    .contact-cta h2 { font-size: 2rem; }
    .logo-text { font-size: 1.3rem; }
    .hero-btn { padding: 5px 12px; }
    .about-links { justify-content: center; }
    #contact h2 { font-size: 1.3rem; }
    .menu-trigger {
        display: block; /* モバイルで表示 */
    }
    .post-title { font-size: 1.3rem; }

    .site-nav {
        position: fixed;
        top: 0;
        right: -100%; /* 初期状態は画面外 */
        width: 70%;
        height: 100vh;
        background: rgba(255, 255, 255, 0.98);
        padding-top: 100px;
        transition: all 0.5s;
        z-index: 150;
    }

    /* メニュー展開時 */
    .is-active .site-nav {
        right: 0;
        visibility: visible;
        opacity: 1;
    }

    .nav-list {
        flex-direction: column;
        gap: 40px !important;
    }

    .nav-list a {
        font-size: 1.5rem;
        font-family:'JetBrains Mono', monospace;
    }
    /* メニュー展開時に背面（body）を固定してスクロールさせない設定 */
    body.is-active {
        overflow: hidden;
    }
    .archive-header {
        padding: 20px 0;
        margin-bottom: 30px;
    }
    .archive-title {
        font-size: 1.4rem;
    }
    .horizontal-card {
        border-radius: 12px;
        border: 1px solid var(--border-color);
        overflow: hidden;
        flex-direction: column;
        gap: 0;
    }
    .horizontal-card .card-thumb {
        border-radius: 0;
        width: 100%; aspect-ratio: 16/9;
        border: none;
    }
    .horizontal-card .card-title {
        font-size: 1.1rem;
        min-height: auto;
    }
    .horizontal-card .card-excerpt{
        min-height: auto;
    }
    .horizontal-card .card-body {
        padding: 20px;
    }
    .post-content h2 {
        font-size: 1.2rem;
    }
    .post-content h3 {
        font-size: 1.1rem;
    }
    .page-title{
        font-size: 1.4rem;
    }
    #about .wp-block-columns {
        flex-direction: column;
        gap: 30px;
        grid-template-columns: none;
    }
    #about .wp-block-column:nth-child(1) {
        margin: 0 auto;
    }
    .archive-container main {
        max-width: 100%;
        overflow: hidden;
    }
}