/*
Theme Name: BlackHatNews
Theme URI: https://blackhatnews.tokyo
Author: TokyoBlackHatNews
Description: 等幅日本語タイポグラフィで振り切った、セキュリティエンジニア・開発者向け AdSense 最適化ニューステーマ。ターミナル的硬質感と編集的階層を両立。
Version: 1.10.1
Requires at least: 6.0
Requires PHP: 8.0
Text Domain: blackhatnews
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
*/

/* ==========================================================================
   Cascade Layers — reset < tokens < base < components < wp-overrides < utilities
   wp-overrides レイヤに WP Global Styles / Jetpack 対応を集約することで
   !important の乱用を避け、必要最小限の優先度で上書き可能にする。
   ========================================================================== */

@layer reset, tokens, base, components, wp-overrides, utilities;

/* ==========================================================================
   CSS Custom Properties (Tokens) — Hacker Terminal palette (A案) + モノスペース
   ========================================================================== */

@layer tokens {
:root {
    /* Base palette — Hacker Terminal (GitHub Dark から脱却し、漆黒 + 真緑 + 赤に振る) */
    --color-bg: #05070a;
    --color-bg-secondary: #0c1117;
    --color-bg-card: #11161e;
    --color-bg-elevated: #141a24;
    --color-border: #1f2a37;
    --color-border-strong: #2a3645;
    --color-text: #e6ecf3;
    --color-text-secondary: #8b95a7;
    --color-text-muted: #5a6578;
    /* Brand accent: terminal green (GitHub の #39d353 より彩度高) */
    --color-accent: #00ff9c;
    --color-accent-hover: #4dffb5;
    --color-accent-strong: #00cc7d;
    --color-on-accent: #05070a;
    /* Semantic */
    --color-danger: #ff3b3b;
    --color-danger-hover: #ff6b6b;
    --color-success: #3fb950;
    --color-warning: #ffb300;
    --color-info: #6ea8fe;
    --color-on-danger: #ffffff;
    /* Fonts — 全面モノスペース。M PLUS 1 Code は日本語等幅、JetBrains Mono は ASCII 等幅。
       本文も見出しもすべて等幅で、ターミナル的な硬質感を維持する。*/
    --font-sans: "JetBrains Mono", "M PLUS 1 Code", "Noto Sans Mono CJK JP", "SF Mono", Menlo, "Hiragino Kaku Gothic ProN", "MS Gothic", monospace;
    --font-mono: "JetBrains Mono", "M PLUS 1 Code", "SF Mono", Menlo, "Courier New", monospace;
    --font-display: "JetBrains Mono", "M PLUS 1 Code", "SF Mono", Menlo, monospace;
    /* Layout */
    --max-width: 1200px;
    --sidebar-width: 340px;
    --radius: 6px;
    --radius-sm: 3px;
    --radius-lg: 10px;
    --radius-pill: 9999px;
    /* Spacing scale (4/8/16/24/32/48/64) */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
    --space-3xl: 64px;
    /* Alias: 後方互換。将来的に --space-lg に統合予定 */
    --gap: var(--space-lg);
    --ad-slot-min-height: 100px;
    --article-padding: 32px;
    /* Typography scale */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-md: 1.0625rem;
    --text-lg: 1.25rem;
    --text-xl: 1.5rem;
    --text-2xl: 1.875rem;
    --text-3xl: 2.25rem;
    --text-hero: clamp(1.25rem, 0.75rem + 1vw, 2rem); /* hero-card-title — 等幅日本語は全角1em幅で場所を取るため控えめに */
    --text-display: clamp(1.75rem, 1.1rem + 1.4vw, 2.75rem); /* article-title */
    /* Line heights — 等幅日本語は行送りを少し詰める (1.75→1.8)。本文の可読帯を保ちつつ情報密度を上げる */
    --leading-tight: 1.25;
    --leading-snug: 1.5;
    --leading-normal: 1.75;
    --leading-relaxed: 1.85;
    /* Accent tints (terminal green) */
    --color-accent-bg: rgba(0, 255, 156, 0.12);
    --color-accent-bg-hover: rgba(0, 255, 156, 0.08);
    --color-accent-bg-subtle: rgba(0, 255, 156, 0.05);
    --color-accent-glow: rgba(0, 255, 156, 0.22);
    --color-accent-border: rgba(0, 255, 156, 0.35);
    /* Danger */
    --color-danger-bg: rgba(255, 59, 59, 0.14);
    --color-danger-border: rgba(255, 59, 59, 0.4);
    --color-danger-glow: rgba(255, 59, 59, 0.25);
    /* Warning */
    --color-warning-bg: rgba(255, 179, 0, 0.14);
    --color-warning-border: rgba(255, 179, 0, 0.35);
    /* Success */
    --color-success-bg: rgba(63, 185, 80, 0.14);
    --color-success-bg-hover: rgba(63, 185, 80, 0.08);
    --color-success-border: rgba(63, 185, 80, 0.35);
    /* Info */
    --color-info-bg: rgba(110, 168, 254, 0.14);
    --color-info-border: rgba(110, 168, 254, 0.35);
    /* Overlays */
    --overlay-subtle: rgba(255, 255, 255, 0.03);
    --overlay-light: rgba(255, 255, 255, 0.06);
    --overlay-medium: rgba(255, 255, 255, 0.10);
    /* Ring / Glow — ダークテーマではシャドウが見えにくいので、内側ring + 外側glow で深度表現 */
    --ring-subtle: inset 0 0 0 1px rgba(255, 255, 255, 0.03);
    --ring-accent: inset 0 0 0 1px rgba(0, 255, 156, 0.35);
    --glow-accent: 0 0 24px -4px rgba(0, 255, 156, 0.3);
    --glow-accent-strong: 0 0 40px -8px rgba(0, 255, 156, 0.5);
    --glow-danger: 0 0 24px -4px rgba(255, 59, 59, 0.35);
    /* Legacy shadow tokens (後方互換、徐々に glow に置き換え) */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.45);
    --shadow-md: 0 6px 16px rgba(0, 0, 0, 0.55);
    --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.7);
    /* Motion */
    --ease-out: cubic-bezier(0.2, 0.8, 0.2, 1);
    --duration-fast: 0.15s;
    --duration-base: 0.22s;
    --duration-slow: 0.4s;
    /* Touch target */
    --touch-min: 44px;
    /* Scanline — ターミナル CRT 風の極薄ストライプ */
    --scanline: repeating-linear-gradient(
        0deg,
        rgba(0, 255, 156, 0) 0px,
        rgba(0, 255, 156, 0) 2px,
        rgba(0, 255, 156, 0.012) 3px,
        rgba(0, 255, 156, 0.012) 4px
    );
}
}

/* ==========================================================================
   Reset & Base — 等幅モノスペースに全面刷新
   ========================================================================== */

@layer reset {
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    padding: 0;
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.85;
    letter-spacing: 0;
    color: var(--color-text);
    background: var(--color-bg);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    /* 等幅フォントでは palt は不要。font-feature は最小構成 */
    font-feature-settings: "kern" 0;
    text-spacing-trim: space-all;
    font-variant-ligatures: none; /* JetBrains Mono のリガチャは CVE-XXXX-NNN 等で紛らわしいので OFF */
}

a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color var(--duration-fast) var(--ease-out);
}

a:hover {
    color: var(--color-accent-hover);
}

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

h1, h2, h3, h4, h5, h6 {
    margin-top: 0;
    line-height: var(--leading-tight);
    font-weight: 700;
    font-family: var(--font-display);
    color: var(--color-text);
    letter-spacing: 0;
}

::selection {
    background: var(--color-accent-glow);
    color: var(--color-text);
}
}

/* ==========================================================================
   Components layer (@layer components)
   Accessibility, Layout, Header, Ad, Hero, Post Cards, Article, Widget, Footer...
   wp-overrides レイヤ(後述)が最終層として WordPress 各種 default CSS を抑える。
   ========================================================================== */

@layer components {

/* ==========================================================================
   Accessibility
   ========================================================================== */

.skip-link {
    position: absolute;
    top: -100%;
    left: 16px;
    z-index: 999;
    padding: 8px 16px;
    background: var(--color-accent);
    color: var(--color-on-accent);
    border-radius: var(--radius);
    font-size: var(--text-sm);
    font-weight: 600;
}

.skip-link:focus-visible {
    top: 8px;
    color: var(--color-on-accent);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
    box-shadow: 0 0 0 4px var(--color-accent-glow);
    transition: outline-offset 0.1s ease, box-shadow 0.1s ease;
}

.post-card-link:focus-visible {
    outline-offset: -2px;
    border-radius: var(--radius);
}

/* ==========================================================================
   Layout
   ========================================================================== */

.site-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 16px;
}

.site-content {
    display: flex;
    gap: var(--gap);
    padding-top: var(--gap);
}

.content-area {
    flex: 1;
    min-width: 0;
}

.widget-area {
    width: var(--sidebar-width);
    flex-shrink: 0;
}

/* ==========================================================================
   Header
   ========================================================================== */

.site-header {
    background-color: var(--color-bg-secondary);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.header-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 56px;
}

.site-branding {
    display: flex;
    align-items: center;
    gap: 8px;
}

.site-title {
    font-family: var(--font-display);
    font-size: var(--text-lg);
    font-weight: 700;
    margin: 0;
    letter-spacing: -0.02em;
    line-height: 1;
}

.site-title-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--color-text);
}

.site-title-link:hover {
    color: var(--color-accent);
}

.site-logo {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    display: block;
}

.site-title-text {
    font-weight: 800;
}

.site-description {
    display: none;
}

/* Navigation */

.main-navigation ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 4px;
}

.main-navigation li a {
    display: block;
    padding: 10px 16px;
    color: var(--color-text-secondary);
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: 500;
    letter-spacing: 0.02em;
    border-radius: var(--radius);
    transition: color 0.2s, background-color 0.2s;
}

.main-navigation li a:hover,
.main-navigation li.current-menu-item a {
    color: var(--color-text);
    background-color: var(--overlay-light);
}

/* Nav Menu Wrap — デスクトップ: inline, モバイル: dropdown */

.nav-menu-wrap {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* Header Utility List (Podcast, Contact, Privacy) */

.header-utility-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    align-items: center;
    gap: 2px;
}

.header-utility-list li a {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 10px 14px;
    min-height: var(--touch-min);
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    font-weight: 500;
    border-radius: var(--radius);
    transition: color 0.2s, background-color 0.2s;
    white-space: nowrap;
}

.header-utility-list li a:hover {
    color: var(--color-text);
    background-color: var(--color-accent-bg-hover);
}

.header-utility-list li a svg {
    flex-shrink: 0;
    opacity: 0.7;
}

/* Header Search */

.header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.header-search-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: var(--touch-min);
    height: var(--touch-min);
    background: none;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: color 0.2s, border-color 0.2s;
}

.header-search-toggle:hover {
    color: var(--color-text);
    border-color: var(--color-text-secondary);
}

.header-search-bar {
    background: var(--color-bg-secondary);
    border-bottom: 1px solid var(--color-border);
    padding: 0;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.3s ease, opacity 0.2s ease, padding 0.3s ease;
}

.header-search-bar.is-open {
    max-height: 80px;
    opacity: 1;
    padding: 12px 0;
}

.header-search-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 16px;
}

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

.header-search-input {
    flex: 1;
    padding: 10px 16px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    color: var(--color-text);
    font-size: var(--text-base);
    font-family: var(--font-sans);
    outline: none;
}

.header-search-input:focus {
    border-color: var(--color-accent);
}

.header-search-input::placeholder {
    color: var(--color-text-secondary);
}

.header-search-submit {
    padding: 10px 20px;
    background: var(--color-accent);
    color: var(--color-on-accent);
    border: none;
    border-radius: var(--radius);
    font-size: var(--text-base);
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
}

.header-search-submit:hover {
    background: var(--color-accent-hover);
}

/* Reading Time */

/* Copy Link Button */

.copy-link-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    min-height: var(--touch-min);
    background: none;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    cursor: pointer;
    transition: color 0.2s, border-color 0.2s;
    font-family: var(--font-sans);
    margin-left: auto;
}

.copy-link-btn:hover {
    color: var(--color-accent);
    border-color: var(--color-accent);
}

.copy-link-btn.is-copied {
    color: var(--color-success);
    border-color: var(--color-success);
}

.reading-time {
    color: var(--color-text-secondary);
}

.reading-time::before {
    content: "";
    display: inline-block;
    width: 3px;
    height: 3px;
    background: var(--color-text-secondary);
    border-radius: 50%;
    vertical-align: middle;
    margin-right: 10px;
}

.menu-toggle {
    display: none;
    background: none;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    color: var(--color-text);
    padding: 10px 14px;
    min-height: var(--touch-min);
    font-size: var(--text-sm);
    cursor: pointer;
}

/* ==========================================================================
   Ad Slots - Site Kit / AdSense 最適化
   ========================================================================== */

.ad-slot {
    min-height: var(--ad-slot-min-height);
    margin: var(--gap) 0;
    text-align: center;
    overflow: hidden;
}

/* AdSense プログラムポリシー準拠: 広告はコンテンツと明確に区別 */
.ad-slot .ad-label {
    display: block;
    text-align: left;
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    margin-bottom: 2px;
    padding: 0 2px;
}

.ad-slot-header {
    margin: 12px 0;
}

.ad-slot-after-article {
    margin-top: 32px;
    padding: 16px 0;
    border-top: 1px solid var(--color-border);
}

.ad-slot-sidebar {
    margin-bottom: var(--gap);
    min-height: 250px;
}

/* ==========================================================================
   Hero Card (Home first item) — ニュースサイトのリードストーリー
   ========================================================================== */

.hero-card {
    margin: var(--space-lg) 0 var(--space-2xl);
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    box-shadow: var(--ring-subtle);
    transition: border-color var(--duration-base) var(--ease-out),
                transform var(--duration-base) var(--ease-out),
                box-shadow var(--duration-base) var(--ease-out);
    position: relative;
    isolation: isolate;
}

/* ターミナル CRT 風スキャンライン — 極薄で ambient、reduced-motion で無効化される */
.hero-card::before {
    content: "";
    position: absolute;
    inset: 0;
    background: var(--scanline);
    pointer-events: none;
    z-index: 1;
    opacity: 0.8;
}

.hero-card:hover {
    border-color: var(--color-accent-border);
    transform: translateY(-4px);
    box-shadow: var(--glow-accent), var(--ring-accent);
}

.hero-card-link {
    display: grid;
    /* text 側を広げる: 1.25fr→1.1fr */
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    color: inherit;
    align-items: stretch;
    /* 5 行タイトル + meta + excerpt + padding を収容 */
    min-height: clamp(280px, 26vw, 360px);
    position: relative;
    z-index: 2;
}

.hero-card-link:hover {
    color: inherit;
}

.hero-card-media {
    position: relative;
    background: var(--color-bg-secondary);
    overflow: hidden;
    /* grid の stretch に任せて aspect-ratio を撤去 — 画像は親の高さを埋める */
}

.hero-card-media img,
.hero-card-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform var(--duration-slow) var(--ease-out);
}

.hero-card:hover .hero-card-image {
    transform: scale(1.04);
}

.hero-card-placeholder {
    width: 100%;
    height: 100%;
    background:
        linear-gradient(135deg, var(--color-bg-secondary) 0%, var(--color-bg) 100%),
        var(--scanline);
}

/* ASCII プロンプトマーカー — hero body 左上に "> _" を配置し、ターミナルっぽさを強調 */
.hero-card-body {
    padding: var(--space-lg) var(--space-xl);
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: var(--space-sm);
    position: relative;
    min-width: 0; /* grid cell の overflow 抑止 */
}

.hero-card-body::before {
    content: ">_";
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    color: var(--color-accent);
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    font-weight: 700;
    opacity: 0.5;
    letter-spacing: 0.1em;
}

.hero-card-meta {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--text-xs);
    color: var(--color-text-secondary);
    flex-wrap: wrap;
    font-family: var(--font-mono);
}

.hero-card-meta time.is-new {
    color: var(--color-danger);
    font-weight: 700;
}

.hero-card-title {
    font-family: var(--font-display);
    font-size: var(--text-hero);
    font-weight: 700;
    line-height: 1.4;
    letter-spacing: 0;
    margin: 0;
    color: var(--color-text);
    display: -webkit-box;
    -webkit-line-clamp: 5;
    -webkit-box-orient: vertical;
    overflow: hidden;
    overflow-wrap: anywhere;
    word-break: normal;
    transition: color var(--duration-fast) var(--ease-out);
}

.hero-card:hover .hero-card-title {
    color: var(--color-accent);
}

.hero-card-excerpt {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    line-height: 1.75;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    overflow-wrap: anywhere;
    word-break: normal;
}

/* ==========================================================================
   Stream Strip — Breaking / Trending 2 カラム
   ========================================================================== */

.stream-strip {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-md);
    margin: 0 0 var(--space-2xl);
}

.stream-strip-col {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--space-md) var(--space-md) var(--space-xs);
}

.stream-strip-col--breaking {
    border-top: 2px solid var(--color-danger);
    box-shadow: inset 0 1px 0 rgba(255, 59, 59, 0.08);
}

.stream-strip-col--trending {
    border-top: 2px solid var(--color-accent);
    box-shadow: inset 0 1px 0 rgba(0, 255, 156, 0.06);
}

.stream-strip-title {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin: 0 0 var(--space-sm);
    color: var(--color-text);
}

.stream-strip-dot {
    width: 8px;
    height: 8px;
    background: var(--color-danger);
    border-radius: 50%;
    box-shadow: 0 0 0 3px rgba(248, 81, 73, 0.25);
    animation: bhn-pulse 2s ease-in-out infinite;
}

@keyframes bhn-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@media (prefers-reduced-motion: reduce) {
    .stream-strip-dot { animation: none; }
}

.stream-strip-spark {
    color: var(--color-accent);
    font-size: 10px;
}

.stream-strip-hint {
    margin-left: auto;
    font-size: var(--text-xs);
    font-weight: 500;
    letter-spacing: 0.04em;
    text-transform: none;
    color: var(--color-text-secondary);
}

.stream-list {
    list-style: none;
    margin: 0;
    padding: 0;
    counter-reset: stream;
}

.stream-list-item {
    border-top: 1px solid var(--color-border);
}

.stream-list-item:first-child {
    border-top: none;
}

.stream-list-link {
    display: flex;
    align-items: baseline;
    gap: var(--space-sm);
    padding: 10px 0;
    color: var(--color-text);
    font-size: var(--text-sm);
    line-height: 1.5;
    transition: color var(--duration-fast) var(--ease-out);
}

.stream-list-link:hover {
    color: var(--color-accent);
}

.stream-list-time {
    flex-shrink: 0;
    color: var(--color-text-secondary);
    font-size: var(--text-xs);
    font-variant-numeric: tabular-nums;
    min-width: 54px;
}

.stream-list-rank {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    background: var(--color-accent-bg);
    color: var(--color-accent);
    border-radius: var(--radius-sm);
    font-size: var(--text-xs);
    font-weight: 800;
    font-variant-numeric: tabular-nums;
}

.stream-list--ranked .stream-list-item:nth-child(1) .stream-list-rank {
    background: var(--color-accent);
    color: var(--color-on-accent);
}

.stream-list-title {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Section heading above post list — 新聞 rule line + ASCII マーカー */
.posts-list-heading {
    font-family: var(--font-display);
    font-size: var(--text-base);
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin: var(--space-lg) 0 var(--space-md);
    padding-bottom: var(--space-sm);
    border-bottom: 2px solid var(--color-accent);
    color: var(--color-text);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.posts-list-heading::before {
    content: "//";
    color: var(--color-accent);
    font-weight: 700;
    opacity: 0.8;
}

/* ==========================================================================
   Headlines Feed (Archive/Home) — セキュリティプロ向け流し読み設計
   ========================================================================== */

.post-card {
    border-bottom: 1px solid var(--color-border);
    position: relative;
    transition: background-color var(--duration-fast) var(--ease-out);
}

.post-card:last-child {
    border-bottom: none;
}

/* 左端にアクセントライン (hover 時に width 0→3px で slide-in) */
.post-card::before {
    content: "";
    position: absolute;
    left: -16px;
    top: 0;
    bottom: 0;
    width: 0;
    background: var(--color-accent);
    transition: width var(--duration-base) var(--ease-out);
}

.post-card:hover {
    background-color: var(--overlay-subtle);
}

.post-card:hover::before {
    width: 3px;
}

.post-card:hover .post-card-thumbnail {
    border-color: var(--color-accent);
}

.post-card:hover .post-card-title {
    color: var(--color-accent);
}

.post-card-link {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 16px 0;
    color: inherit;
}

.post-card-link:hover {
    color: inherit;
}

.post-card-thumbnail {
    width: 100px;
    min-width: 100px;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    border-radius: var(--radius-sm);
    background-color: var(--color-bg-secondary);
    flex-shrink: 0;
}

.post-card-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.post-card-placeholder {
    width: 100%;
    height: 100%;
}

.post-card-body {
    flex: 1;
    min-width: 0;
    padding: 0;
}

.post-card-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 4px;
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--color-text-secondary);
    flex-wrap: wrap;
    overflow: hidden;
}

.post-card-meta time {
    white-space: nowrap;
    flex-shrink: 0;
    font-variant-numeric: tabular-nums;
}

.post-card-meta time.is-new {
    color: var(--color-danger);
    font-weight: 700;
}

.post-card-category {
    display: inline-block;
    padding: 1px 7px;
    background-color: var(--color-accent-bg);
    color: var(--color-accent);
    border: 1px solid var(--color-accent-border);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: 0.04em;
    flex-shrink: 1;
    max-width: 180px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.post-card-category::before {
    content: "#";
    opacity: 0.7;
    margin-right: 1px;
}

.post-card-title {
    font-family: var(--font-display);
    font-size: var(--text-md);
    font-weight: 700;
    margin: 0 0 4px;
    line-height: var(--leading-snug);
    letter-spacing: 0;
    transition: color var(--duration-fast) var(--ease-out);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.post-card-excerpt {
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    line-height: 1.7;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Source indicator */
.post-card-source {
    color: var(--color-text-secondary);
    font-style: italic;
    opacity: 0.8;
}

/* Category color variants — all AA-compliant with 1px border */
.post-card-category--danger {
    background-color: var(--color-danger-bg);
    color: var(--color-danger);
    border-color: var(--color-danger-border);
}

.post-card-category--warning {
    background-color: var(--color-warning-bg);
    color: var(--color-warning);
    border-color: var(--color-warning-border);
}

.post-card-category--success {
    background-color: var(--color-success-bg);
    color: var(--color-success);
    border-color: var(--color-success-border);
}

.post-card-category--info {
    background-color: var(--color-info-bg);
    color: var(--color-info);
    border-color: var(--color-info-border);
}

/* NEW badge — DOM element (was ::after) */
.post-card-badge {
    display: inline-flex;
    align-items: center;
    padding: 1px 7px;
    background: var(--color-danger);
    color: var(--color-on-danger);
    border-radius: var(--radius-sm);
    font-size: var(--text-xs);
    font-weight: 800;
    letter-spacing: 0.08em;
    line-height: 1.4;
    text-transform: uppercase;
}

/* Featured post (first item) — やや大きく。ヒーローテンプレ化されたページでは .post-card:first-child は通常扱い */
.posts-list--with-hero .post-card:first-child .post-card-thumbnail {
    width: 100px;
    min-width: 100px;
}

.post-card:first-child:not(.posts-list--with-hero .post-card:first-child) .post-card-link {
    padding: 16px 0 18px;
}

.post-card:first-child:not(.posts-list--with-hero .post-card:first-child) .post-card-thumbnail {
    width: 160px;
    min-width: 160px;
}

.post-card:first-child:not(.posts-list--with-hero .post-card:first-child) .post-card-title {
    font-size: var(--text-lg);
    -webkit-line-clamp: 3;
}

.post-card:first-child:not(.posts-list--with-hero .post-card:first-child) .post-card-excerpt {
    -webkit-line-clamp: 2;
}

/* ==========================================================================
   Archive / Search Header
   ========================================================================== */

.archive-title {
    font-size: var(--text-xl);
    margin-bottom: var(--gap);
}

.search-result-count {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    font-weight: 400;
}

/* ==========================================================================
   Single Article
   ========================================================================== */

.single-article {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.article-header {
    padding: var(--article-padding) var(--article-padding) 0;
}

.article-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 16px;
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

.article-title {
    font-family: var(--font-display);
    font-size: var(--text-display);
    line-height: 1.3;
    letter-spacing: -0.01em;
    font-weight: 700;
    margin: 0 0 16px;
}

.article-featured-image {
    margin: 0 0 var(--space-lg);
    overflow: hidden;
    aspect-ratio: 16 / 9;
    background: var(--color-bg-secondary);
    border-bottom: 1px solid var(--color-border);
}

.article-featured-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.article-content {
    padding: 0 var(--article-padding) var(--article-padding);
    font-size: var(--text-md);
    line-height: 1.95;
    letter-spacing: 0;
    font-feature-settings: "kern" 0;
    word-break: normal;
    overflow-wrap: anywhere;
    line-break: strict;
}

.article-content p {
    margin: 0 0 1.5em;
}

.article-content h2 {
    font-size: var(--text-xl);
    margin: 1.5em 0 0.6em;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--color-accent);
}

.article-content a {
    text-decoration: underline;
    text-decoration-color: var(--color-accent);
    text-decoration-thickness: 1px;
    text-underline-offset: 3px;
}

.article-content a:hover {
    text-decoration-color: var(--color-accent-hover);
}

/* CVE chip */
.article-content a.cve-chip {
    display: inline-block;
    padding: 0 6px;
    background: var(--color-warning-bg);
    color: var(--color-warning);
    border: 1px solid var(--color-warning-border);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.85em;
    font-weight: 700;
    letter-spacing: 0.02em;
    text-decoration: none;
    transition: background-color var(--duration-fast) var(--ease-out);
    white-space: nowrap;
}

.article-content a.cve-chip:hover {
    background: rgba(210, 153, 34, 0.25);
    text-decoration: none;
}

.article-content h3 {
    font-size: var(--text-lg);
    margin: 1.5em 0 0.6em;
}

.article-content h4 {
    font-size: var(--text-md);
    margin: 1.5em 0 0.5em;
}

.article-content h5 {
    font-size: var(--text-base);
    margin: 1.5em 0 0.5em;
}

.article-content h6 {
    font-size: var(--text-sm);
    margin: 1.5em 0 0.5em;
    color: var(--color-text-secondary);
}

.article-content ul,
.article-content ol {
    margin: 0 0 1.5em;
    padding-left: 1.6em;
}

.article-content li {
    margin-bottom: 0.4em;
}

.article-content blockquote {
    margin: 1.5em 0;
    padding: 16px 20px;
    border-left: 4px solid var(--color-accent);
    background: var(--color-accent-bg);
    border-radius: 0 var(--radius) var(--radius) 0;
    color: var(--color-text);
}

.article-content pre,
.article-content code {
    font-family: var(--font-mono);
    font-size: 0.875em;
}

.article-content pre {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 16px;
    overflow-x: auto;
    margin: 1.5em 0;
}

.article-content code {
    background: var(--overlay-light);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
}

.article-content pre code {
    background: none;
    padding: 0;
}

.article-content img {
    border-radius: var(--radius);
    margin: 1.5em auto;
}

.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5em 0;
    font-size: var(--text-base);
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.article-content th,
.article-content td {
    padding: 10px 14px;
    border: 1px solid var(--color-border);
    text-align: left;
}

.article-content th {
    background: var(--color-bg-secondary);
    font-weight: 600;
}

.article-source {
    margin-top: 32px;
    padding-top: 16px;
    border-top: 1px solid var(--color-border);
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

/* Tags */

.article-tags {
    padding: 16px var(--article-padding) 24px;
    border-top: 1px solid var(--color-border);
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.article-tags a {
    display: inline-block;
    padding: 4px 12px;
    background: var(--overlay-subtle);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-pill);
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    transition: color 0.2s, border-color 0.2s, background-color 0.2s;
}

.article-tags a:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    background: var(--color-accent-bg-hover);
}

/* ==========================================================================
   Related Posts
   ========================================================================== */

.related-posts {
    margin-top: var(--gap);
}

.related-posts-title {
    font-size: var(--text-md);
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--color-border);
}

.related-posts-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.related-post-card {
    display: flex;
    flex-direction: column;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: border-color 0.15s ease, background-color 0.15s ease;
}

.related-post-card:hover {
    border-color: var(--color-accent);
    background-color: var(--overlay-subtle);
}

.related-post-card .post-card-thumbnail {
    width: 100%;
    min-width: unset;
    aspect-ratio: 16 / 10;
    max-height: 120px;
    border-radius: 0;
}

.related-post-card .post-card-body {
    flex: 1;
    padding: 10px 12px 12px;
}

.related-post-card .post-card-title {
    font-size: var(--text-sm);
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ==========================================================================
   Breadcrumbs
   ========================================================================== */

.breadcrumbs {
    padding: 12px 0;
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

.breadcrumbs a {
    color: var(--color-text-secondary);
}

.breadcrumbs a:hover {
    color: var(--color-accent);
}

.breadcrumbs .separator {
    margin: 0 6px;
    opacity: 0.5;
}

/* ==========================================================================
   Sidebar / Widgets
   ========================================================================== */

.widget {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: var(--gap);
    box-shadow: var(--shadow-sm);
}

.widget-title {
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: 700;
    margin: 0 0 16px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--color-accent);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text);
}

.widget-title::before {
    content: "//";
    color: var(--color-accent);
    margin-right: 8px;
    opacity: 0.8;
}

.widget ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.widget li {
    padding: 10px 0;
    border-bottom: 1px solid var(--color-border);
    font-size: var(--text-sm);
}

.widget li:last-child {
    border-bottom: none;
}

.widget li a {
    color: var(--color-text-secondary);
    display: block;
}

.widget li a:hover {
    color: var(--color-accent);
}

/* BHN Popular Widget */

.bhn-popular-list {
    list-style: none;
    margin: 0;
    padding: 0;
    counter-reset: bhn-pop;
}

.bhn-popular-item {
    border-top: 1px solid var(--color-border);
}

.bhn-popular-item:first-child {
    border-top: none;
}

.bhn-popular-link {
    display: grid;
    grid-template-columns: auto 64px 1fr;
    gap: var(--space-sm);
    align-items: center;
    padding: 10px 0;
    color: var(--color-text);
    transition: color var(--duration-fast) var(--ease-out);
}

.bhn-popular-link:hover {
    color: var(--color-accent);
}

.bhn-popular-rank {
    width: 22px;
    height: 22px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--color-accent-bg);
    color: var(--color-accent);
    border-radius: var(--radius-sm);
    font-size: var(--text-xs);
    font-weight: 800;
    font-variant-numeric: tabular-nums;
}

.bhn-popular-item:nth-child(1) .bhn-popular-rank {
    background: var(--color-accent);
    color: var(--color-on-accent);
}

.bhn-popular-thumb {
    width: 64px;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    border-radius: var(--radius-sm);
    background: var(--color-bg-secondary);
    display: block;
}

.bhn-popular-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.bhn-popular-title {
    font-size: var(--text-sm);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* BHN Category Cloud */

.bhn-cat-cloud {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.bhn-cat-cloud li {
    border: none !important;
    padding: 0 !important;
}

.bhn-cat-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    background: var(--color-accent-bg);
    color: var(--color-accent) !important;
    border: 1px solid var(--color-accent-border);
    border-radius: var(--radius-pill);
    font-size: var(--text-xs);
    font-weight: 600;
    transition: transform var(--duration-fast) var(--ease-out), background-color var(--duration-fast) var(--ease-out);
}

.bhn-cat-chip:hover {
    transform: translateY(-1px);
}

.bhn-cat-chip.post-card-category--danger {
    background: var(--color-danger-bg);
    color: var(--color-danger) !important;
    border-color: var(--color-danger-border);
}

.bhn-cat-chip.post-card-category--warning {
    background: var(--color-warning-bg);
    color: var(--color-warning) !important;
    border-color: var(--color-warning-border);
}

.bhn-cat-chip.post-card-category--success {
    background: var(--color-success-bg);
    color: var(--color-success) !important;
    border-color: var(--color-success-border);
}

.bhn-cat-chip.post-card-category--info {
    background: var(--color-info-bg);
    color: var(--color-info) !important;
    border-color: var(--color-info-border);
}

.bhn-cat-count {
    opacity: 0.75;
    font-variant-numeric: tabular-nums;
    font-size: 0.85em;
}

/* WordPress/Jetpack デフォルトウィジェットのダークテーマ統合 (wp-overrides layer) */
@layer wp-overrides {
.widget iframe,
.widget embed,
.widget img {
    max-width: 100%;
}

.widget .textwidget,
.widget .wp-block-group,
.widget .wp-block-columns {
    color: var(--color-text);
    background: transparent;
}

.widget .wp-block-group *,
.widget .wp-block-columns * {
    color: inherit;
    background-color: transparent;
}

/* Search Widget — Block Editor (wp-block-search) */

.wp-block-search__input {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    color: var(--color-text);
    border-radius: var(--radius) 0 0 var(--radius);
    padding: 8px 14px;
    font-family: var(--font-sans);
    font-size: var(--text-sm);
}

.wp-block-search__input:focus {
    border-color: var(--color-accent);
    outline: none;
}

.wp-block-search__button {
    background: var(--color-accent);
    color: var(--color-on-accent);
    border: none;
    border-radius: 0 var(--radius) var(--radius) 0;
    padding: 8px 16px;
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: 600;
    cursor: pointer;
}

.wp-block-search__button:hover {
    background: var(--color-accent-hover);
}

.wp-block-search__label {
    color: var(--color-text);
    font-family: var(--font-display);
    font-weight: 700;
    letter-spacing: 0.04em;
}
}

/* Search Widget — Classic */

.search-form {
    display: flex;
}

.search-field {
    flex: 1;
    padding: 8px 14px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-right: none;
    border-radius: var(--radius) 0 0 var(--radius);
    color: var(--color-text);
    font-size: var(--text-sm);
    outline: none;
}

.search-field:focus {
    border-color: var(--color-accent);
    border-right: none;
    box-shadow: inset 0 0 0 1px var(--color-accent);
    position: relative;
    z-index: 1;
}

.search-submit {
    padding: 8px 16px;
    background: var(--color-accent);
    color: var(--color-on-accent);
    border: none;
    border-radius: 0 var(--radius) var(--radius) 0;
    cursor: pointer;
    font-size: var(--text-sm);
    font-weight: 600;
    transition: background-color 0.2s;
}

.search-submit:hover {
    background: var(--color-accent-hover);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
    margin-top: var(--space-2xl);
    padding: var(--space-xl) 0 var(--space-lg);
    border-top: 1px solid var(--color-border);
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    background: var(--color-bg-secondary);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
}

.footer-brand-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--color-text);
}

.footer-site-name {
    font-weight: 800;
    font-size: var(--text-base);
}

.footer-tagline {
    margin: var(--space-sm) 0 0;
    font-size: var(--text-xs);
    line-height: 1.7;
    color: var(--color-text-secondary);
}

.footer-col-title {
    font-family: var(--font-display);
    font-size: var(--text-xs);
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin: 0 0 var(--space-sm);
}

.footer-col-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.footer-col-list a {
    display: inline-block;
    padding: 6px 0;
    color: var(--color-text);
    font-size: var(--text-sm);
    transition: color var(--duration-fast) var(--ease-out);
}

.footer-col-list a:hover {
    color: var(--color-accent);
}

.footer-bottom {
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border);
    text-align: center;
    color: var(--color-text-muted);
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    letter-spacing: 0.04em;
}

.footer-bottom p {
    margin: 0;
}

/* ==========================================================================
   Pagination / Infinite Scroll
   ========================================================================== */

.pagination {
    padding: 32px 0;
    text-align: center;
}

.pagination .nav-links {
    display: flex;
    justify-content: center;
    gap: 8px;
}

.pagination .page-numbers {
    display: inline-flex;
    align-items: center;
    padding: 10px 16px;
    min-height: var(--touch-min);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    transition: color 0.2s, border-color 0.2s;
}

.pagination .page-numbers:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.pagination .page-numbers.current,
.pagination .page-numbers.current:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-on-accent);
    cursor: default;
}

/* ==========================================================================
   Contact Form
   ========================================================================== */

.contact-form-section {
    padding: 0 var(--article-padding) var(--article-padding);
}

.bhn-contact-form {
    max-width: 640px;
}

/* Honeypot — スクリーンリーダー・ブラウザから完全に隠す。display:none だと Bot に検出される */
.bhn-hp {
    position: absolute !important;
    left: -9999px !important;
    top: auto !important;
    width: 1px !important;
    height: 1px !important;
    overflow: hidden !important;
    opacity: 0 !important;
    pointer-events: none !important;
}

.form-field {
    margin-bottom: 20px;
}

.form-field label {
    display: block;
    margin-bottom: 6px;
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-text);
}

.form-field .required {
    color: var(--color-danger);
}

.form-field input[type="text"],
.form-field input[type="email"],
.form-field textarea {
    width: 100%;
    padding: 10px 14px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    color: var(--color-text);
    font-size: var(--text-base);
    font-family: var(--font-sans);
    outline: none;
    transition: border-color 0.2s;
}

.form-field input:focus,
.form-field textarea:focus {
    border-color: var(--color-accent);
}

.form-field textarea {
    resize: vertical;
    min-height: 160px;
}

.contact-submit-btn {
    display: inline-block;
    padding: 12px 32px;
    background: var(--color-accent);
    color: var(--color-on-accent);
    border: none;
    border-radius: var(--radius);
    font-size: var(--text-base);
    font-weight: 600;
    font-family: var(--font-sans);
    cursor: pointer;
    transition: background-color 0.2s;
}

.contact-submit-btn:hover {
    background: var(--color-accent-hover);
}

.contact-success {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 20px;
    background: var(--color-success-bg-hover);
    border: 1px solid var(--color-success-border);
    border-radius: var(--radius);
    color: var(--color-success);
}

.contact-success p {
    margin: 0;
    font-size: 1rem;
    line-height: 1.5;
}

.contact-success svg {
    flex-shrink: 0;
    margin-top: 2px;
}

@media (max-width: 640px) {
    .contact-form-section {
        padding: 0 var(--article-padding) 24px;
    }
}

} /* end @layer components */

/* ==========================================================================
   Jetpack Sharedaddy — wp-overrides layer (他レイヤより後なので !important 不要)
   ========================================================================== */

@layer wp-overrides {
.sharedaddy,
.sharedaddy * {
    color: var(--color-text);
}

.sharedaddy {
    margin: var(--space-lg) var(--article-padding) 0;
    padding: var(--space-md) 0 0;
    border-top: 1px solid var(--color-border);
}

.sharedaddy h3.sd-title {
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-text-secondary);
    margin: 0 0 var(--space-sm);
}

.sharedaddy h3.sd-title::before {
    display: none;
}

.sharedaddy .sd-content ul {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 0;
    padding: 0;
}

.sharedaddy .sd-content ul li {
    margin: 0;
    padding: 0;
    background: transparent;
    border: none;
}

.sharedaddy .sd-content ul li a.sd-button {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    color: var(--color-text);
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    font-weight: 500;
    text-decoration: none;
    box-shadow: none;
    transition: border-color var(--duration-fast) var(--ease-out), transform var(--duration-fast) var(--ease-out);
    min-height: var(--touch-min);
}

.sharedaddy .sd-content ul li a.sd-button:hover {
    border-color: var(--color-accent);
    transform: translateY(-1px);
}

.sharedaddy .sd-content ul li .share-icon,
.sharedaddy .sd-social-icon-text .sd-content ul li[class*='share-'] a {
    background: transparent;
    color: var(--color-text-secondary);
}

/* Guard: AdSense 自動広告の白背景を抑制 */
ins.adsbygoogle-noablate {
    background: transparent;
}

/* Guard: Jetpack infinite-scroll body class の背景上書きを防止 */
body.infinity-success,
body.infinite-scroll,
body.neverending {
    background: var(--color-bg);
    background-color: var(--color-bg);
    color: var(--color-text);
}
}

@layer components {

/* Custom Infinite Scroll */

.infinite-scroll-trigger {
    padding: 32px 0;
    text-align: center;
}

.load-more-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 48px;
    background: var(--color-accent);
    border: none;
    border-radius: var(--radius);
    color: var(--color-on-accent);
    cursor: pointer;
    font-size: var(--text-base);
    font-weight: 600;
    font-family: var(--font-sans);
    min-height: var(--touch-min);
    transition: background-color 0.2s, box-shadow 0.2s;
    box-shadow: var(--shadow-sm);
}

.load-more-btn:hover {
    background: var(--color-accent-hover);
    box-shadow: var(--shadow-md);
}

/* hidden属性を確実に効かせる */
.infinite-scroll-trigger [hidden] {
    display: none !important;
}

.infinite-scroll-spinner {
    color: var(--color-text-secondary);
    display: flex;
    justify-content: center;
    padding: 8px 0;
}

.infinite-scroll-spinner svg {
    animation: bhn-spin 1s linear infinite;
}

@keyframes bhn-spin {
    to { transform: rotate(360deg); }
}

@media (prefers-reduced-motion: reduce) {
    .infinite-scroll-spinner svg {
        animation: none;
    }
}

.infinite-scroll-end {
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    margin: 0;
}

/* ==========================================================================
   404 Page
   ========================================================================== */

.error-404 {
    text-align: center;
    padding: 80px 20px;
}

.error-404 h1 {
    font-size: 4rem;
    color: var(--color-text-secondary);
    margin-bottom: 16px;
}

.error-404 p {
    color: var(--color-text-secondary);
    font-size: var(--text-md);
}

.error-404-actions {
    margin-top: 24px;
}

.btn-primary {
    display: inline-block;
    padding: 10px 24px;
    background: var(--color-accent);
    color: var(--color-on-accent);
    border-radius: var(--radius);
    font-weight: 600;
    transition: background-color 0.2s;
}

.btn-primary:hover {
    background: var(--color-accent-hover);
    color: var(--color-on-accent);
}

/* ==========================================================================
   No Results
   ========================================================================== */

.no-results {
    padding: 48px 0;
    text-align: center;
}

.no-results h2 {
    margin-bottom: 8px;
}

.no-results p {
    color: var(--color-text-secondary);
    margin-bottom: 24px;
}

.no-results .search-form {
    max-width: 480px;
    margin: 0 auto 32px;
}

.no-results-categories {
    margin-top: 32px;
}

.no-results-categories h3 {
    font-size: var(--text-base);
    color: var(--color-text-secondary);
    margin-bottom: 12px;
}

.category-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
}

.category-link {
    display: inline-block;
    padding: 6px 14px;
    background: var(--overlay-subtle);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-pill);
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    transition: color 0.2s, border-color 0.2s, background-color 0.2s;
}

.category-link:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    background: var(--color-accent-bg-hover);
}

/* ==========================================================================
   Responsive: Tablet
   ========================================================================== */

@media (max-width: 1024px) {
    .related-posts-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 960px) {
    .site-content {
        flex-direction: column;
    }

    .widget-area {
        width: 100%;
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: var(--gap);
    }

    .widget-area .ad-slot-sidebar {
        grid-column: 1 / -1;
    }
}

/* ==========================================================================
   Responsive: Tablet-Small (Nav collapse)
   ========================================================================== */

@media (max-width: 900px) {
    .hero-card-link {
        grid-template-columns: 1fr;
        min-height: auto;
    }
    .hero-card-media {
        aspect-ratio: 16 / 10;
    }
    .hero-card-body {
        padding: var(--space-lg) var(--space-md) var(--space-lg);
    }
    .hero-card-title {
        /* clamp が既に小さくなるので font-size 上書きは不要。モバイルは全文表示でも破綻しにくい */
        -webkit-line-clamp: 6;
    }
    .hero-card-body::before {
        /* モバイルでは右上 ">_" を非表示（スペース不足） */
        display: none;
    }
    .stream-strip {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu-wrap {
        position: absolute;
        top: 56px;
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--color-bg-secondary);
        border-bottom: 1px solid var(--color-border);
        padding: 0;
        gap: 0;
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        transition: max-height 0.3s ease, opacity 0.2s ease;
    }

    .main-navigation.toggled .nav-menu-wrap {
        max-height: 60vh;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        opacity: 1;
        padding: 8px;
    }

    .nav-menu-wrap ul {
        flex-direction: column;
        gap: 0;
    }

    .header-utility-list {
        flex-direction: column;
        align-items: stretch;
        border-top: 1px solid var(--color-border);
        margin-top: 4px;
        padding-top: 4px;
    }

    .header-utility-list li a {
        padding: 10px 14px;
        font-size: var(--text-sm);
    }

    .menu-toggle {
        display: block;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-lg);
    }

    .footer-brand-col {
        grid-column: 1 / -1;
        padding-bottom: var(--space-md);
        border-bottom: 1px solid var(--color-border);
    }
}

/* ==========================================================================
   Responsive: Mobile
   ========================================================================== */

@media (max-width: 640px) {
    :root {
        --gap: 16px;
        --article-padding: 16px;
    }

    .header-inner {
        height: 50px;
    }

    .site-title {
        font-size: 1.1rem;
    }

    .nav-menu-wrap {
        top: 50px;
    }

    /* モバイル: 非広告ウィジェットはデフォルト折りたたみ(search_widget は開いたまま) */
    .widget-area .widget:not(.ad-slot-sidebar):not(.widget_search) details {
        overflow: hidden;
    }
    .widget-area .widget:not(.ad-slot-sidebar) {
        padding: 12px 16px;
    }
    .widget-area .widget details summary {
        cursor: pointer;
        list-style: none;
        display: flex;
        align-items: center;
        justify-content: space-between;
        font-weight: 700;
        color: var(--color-text);
        padding: 4px 0;
    }
    .widget-area .widget details summary::-webkit-details-marker {
        display: none;
    }
    .widget-area .widget details summary::after {
        content: "";
        width: 10px;
        height: 10px;
        border-right: 2px solid var(--color-text-secondary);
        border-bottom: 2px solid var(--color-text-secondary);
        transform: rotate(45deg);
        margin-left: 8px;
        transition: transform var(--duration-base) var(--ease-out);
    }
    .widget-area .widget details[open] summary::after {
        transform: rotate(-135deg);
    }

    .copy-link-btn {
        margin-left: 0;
        width: 100%;
        justify-content: center;
    }

    .widget-area {
        grid-template-columns: 1fr;
    }

    .post-card-thumbnail {
        width: 88px;
        min-width: 88px;
        aspect-ratio: 16 / 10;
    }

    .post-card-thumbnail img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

    .post-card:first-child .post-card-thumbnail {
        width: 96px;
        min-width: 96px;
        aspect-ratio: 16 / 10;
    }

    .post-card-title {
        font-size: var(--text-base);
        /* モバイルでは excerpt を隠しているのでタイトル全文を表示 */
        display: block;
        -webkit-line-clamp: unset;
        overflow: visible;
        overflow-wrap: anywhere;
        word-break: normal;
    }

    .post-card:first-child .post-card-title {
        font-size: var(--text-md);
    }

    .post-card-excerpt {
        display: none;
    }

    /* 関連記事カードも同様にタイトル省略を解除 */
    .related-post-card .post-card-title {
        -webkit-line-clamp: unset;
        display: block;
        overflow: visible;
        overflow-wrap: anywhere;
    }

    /* 速報・人気記事リストも 2 行制限を 3 行に緩める (モバイルで切れやすいため) */
    .stream-list-title {
        -webkit-line-clamp: 3;
    }

    .article-header {
        padding: var(--article-padding) var(--article-padding) 0;
    }

    .article-title {
        font-size: var(--text-xl);
    }

    .article-featured-image {
        margin: 0 var(--article-padding) 20px;
    }

    .article-content {
        padding: 0 var(--article-padding) 24px;
        font-size: 1rem;
    }

    .article-tags {
        padding: 12px var(--article-padding) 20px;
    }

    .related-posts-grid {
        grid-template-columns: 1fr;
    }

    .ad-slot {
        margin: 16px -16px;
        min-height: 80px;
    }

}

/* ==========================================================================
   Reduced Motion
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ==========================================================================
   Scrollbar (Webkit)
   ========================================================================== */

::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-text-secondary);
}

/* ==========================================================================
   Print
   ========================================================================== */

@media print {
    .site-header,
    .site-footer,
    .widget-area,
    .ad-slot,
    .breadcrumbs,
    .copy-link-btn,
    .related-posts,
    .pagination,
    .infinite-scroll-trigger,
    .share-buttons,
    .sharedaddy {
        display: none !important;
    }

    body {
        color: #000;
        background: #fff;
        font-size: 12pt;
        line-height: 1.6;
    }

    .site-content,
    .content-area,
    .single-article,
    .article-content {
        background: #fff;
        color: #000;
        max-width: 100%;
        padding: 0;
        margin: 0;
    }

    .article-title {
        page-break-after: avoid;
    }

    a {
        color: #000;
        text-decoration: underline;
    }

    img {
        max-width: 100% !important;
        page-break-inside: avoid;
    }
}

} /* end @layer components */

/* ==========================================================================
   Unlayered overrides — Jetpack Boost Critical CSS や他所の非レイヤ CSS に勝つ保険。
   重要な hero / post-card / token 宣言を @layer 外で重複宣言する。
   Critical CSS が stale な旧版を inline しても常にこのブロックが効く。
   ========================================================================== */

:root {
    --color-bg: #05070a;
    --color-bg-secondary: #0c1117;
    --color-bg-card: #11161e;
    --color-border: #1f2a37;
    --color-text: #e6ecf3;
    --color-text-secondary: #8b95a7;
    --color-accent: #00ff9c;
    --color-on-accent: #05070a;
    --color-danger: #ff3b3b;
    --text-hero: clamp(1.25rem, 0.75rem + 1vw, 2rem);
    --text-display: clamp(1.75rem, 1.1rem + 1.4vw, 2.75rem);
}

.hero-card-link {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    align-items: stretch;
    min-height: clamp(280px, 26vw, 360px);
}

.hero-card-body {
    min-width: 0;
}

.hero-card-title {
    font-family: "JetBrains Mono", "M PLUS 1 Code", "SF Mono", Menlo, monospace;
    font-size: var(--text-hero);
    font-weight: 700;
    line-height: 1.4;
    letter-spacing: 0;
    display: -webkit-box;
    -webkit-line-clamp: 5;
    -webkit-box-orient: vertical;
    overflow: hidden;
    overflow-wrap: anywhere;
    word-break: normal;
}

.hero-card-excerpt {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    overflow-wrap: anywhere;
}

.article-title {
    font-family: "JetBrains Mono", "M PLUS 1 Code", "SF Mono", Menlo, monospace;
    font-size: var(--text-display);
    line-height: 1.3;
    letter-spacing: -0.01em;
    font-weight: 700;
}

@media (max-width: 900px) {
    .hero-card-link {
        grid-template-columns: 1fr;
        min-height: auto;
    }
    .hero-card-title {
        -webkit-line-clamp: 6;
    }
}

@media (max-width: 640px) {
    .post-card-title {
        display: block;
        -webkit-line-clamp: unset;
        overflow: visible;
        overflow-wrap: anywhere;
    }
    .related-post-card .post-card-title {
        display: block;
        -webkit-line-clamp: unset;
        overflow: visible;
    }
    .stream-list-title {
        -webkit-line-clamp: 3;
    }
    .post-card-excerpt {
        display: none;
    }
}