/*
Theme Name: Schizo
Theme URI: https://example.com/schizo
Author: Schizo Team
Author URI: https://example.com
Description: 温かみのあるオレンジとゴールドをベースにしたモダンなWordPressテーマ。グラスモーフィズム、グラデーション、3D演出、フローティング設定パネルなどの洗練されたUI/UXを搭載。
Version: 1.1.2
Requires at least: 6.0
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: schizo
Tags: blue, modern, responsive, glassmorphism, gradient, one-column, two-columns, custom-menu, featured-images, threaded-comments, translation-ready
*/

/* ========================================
   CSS Custom Properties (Design Tokens)
   ======================================== */
:root {
  /* Primary Colors */
  --color-deep-navy: #1f0b00;
  --color-dark-blue: #3a1500;
  --color-royal-blue: #702600;
  --color-ocean-blue: #ad3d00;
  --color-sky-blue: #e85900;
  --color-light-blue: #ff781f;
  --color-ice-blue: #ff9d5c;
  --color-pale-blue: #ffc49e;
  --color-frost: #ffe9dc;

  /* Accent Colors */
  --color-accent: #ff6600;
  --color-accent-warm: #ff2a00;
  --color-accent-glow: rgba(255, 102, 0, 0.4);
  --color-neon-cyan: #ffcc00; /* Warm Gold */
  --color-neon-purple: #ff6600; /* Bright Orange */
  --color-neon-magenta: #ff3300; /* Red Orange */
  --neon-glow-cyan: 0 0 8px #ffcc00, 0 0 20px #ffcc00, 0 0 40px rgba(255, 204, 0, 0.5);
  --neon-glow-purple: 0 0 8px #ff6600, 0 0 20px #ff6600, 0 0 40px rgba(255, 102, 0, 0.5);
  --neon-glow-magenta: 0 0 8px #ff3300, 0 0 20px #ff3300, 0 0 40px rgba(255, 51, 0, 0.5);

  /* Neutrals */
  --color-white: #ffffff;
  --color-text: #fff3e8;
  --color-text-muted: #d9b8a3;
  --color-text-dark: #331500;
  --color-border: rgba(255, 150, 50, 0.15);

  /* Glassmorphism */
  --glass-bg: rgba(58, 21, 0, 0.65);
  --glass-bg-light: rgba(112, 38, 0, 0.45);
  --glass-border: rgba(255, 150, 50, 0.15);
  --glass-shadow: 0 8px 32px rgba(255, 100, 0, 0.15);

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #3a1500 0%, #ad3d00 50%, #e85900 100%);
  --gradient-hero: linear-gradient(160deg, #1f0b00 0%, #3a1500 30%, #ad3d00 60%, #ff781f 100%);
  --gradient-card: linear-gradient(145deg, rgba(112, 38, 0, 0.6), rgba(58, 21, 0, 0.8));
  --gradient-accent: linear-gradient(135deg, #ff9900, #ff3300);
  --gradient-button: linear-gradient(135deg, #e85900, #ff9900);
  --gradient-footer: linear-gradient(180deg, #1f0b00, #0a0300);

  /* Typography */
  --font-body: 'Noto Sans JP', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-heading: 'Inter', 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.15);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 20px rgba(255, 102, 0, 0.3);

  /* Container */
  --container-max: 1200px;
  --container-narrow: 800px;
}

/* ========================================
   Global Reset & Base
   ======================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background: var(--gradient-primary);
  background-attachment: fixed;
  color: var(--color-text);
  line-height: 1.9; /* Improved from 1.8 for readability */
  letter-spacing: 0.03em; /* Slightly wider for Japanese text */
  min-height: 100vh;
  overflow-x: hidden;
}

a {
  color: var(--color-light-blue);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

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

ul,
ol {
  list-style: none;
}

/* ========================================
   Typography
   ======================================== */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-white);
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
}

h2 {
  font-size: clamp(1.5rem, 3.5vw, 2.25rem);
}

h3 {
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
}

h4 {
  font-size: 1.25rem;
}

p {
  margin-bottom: var(--space-md);
  color: var(--color-text);
}

/* ========================================
   Container & Layout
   ======================================== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.container--narrow {
  max-width: var(--container-narrow);
}

.site-content {
  min-height: 60vh;
  padding: var(--space-3xl) 0;
}

.content-area {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: var(--space-3xl);
  align-items: start;
}

.content-area.no-sidebar {
  grid-template-columns: 1fr;
  max-width: var(--container-narrow);
  margin: 0 auto;
}

/* ========================================
   Header & Navigation
   ======================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 2100; /* Higher than menu overlay */
  padding: var(--space-md) 0;
  transition: all var(--transition-base);
  background: transparent;
}

/* Header controls (Search only now) */
.header-controls {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-left: auto;
}

.control-btn {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid var(--glass-border);
  color: var(--color-text);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 4px;
}

.control-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  color: var(--color-white);
}

.control-btn.active {
  background: var(--gradient-accent);
  color: var(--color-white);
  border-color: transparent;
}

.site-header.scrolled {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: var(--shadow-md);
  padding: var(--space-sm) 0;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between; /* Space Branding and Controls */
  width: 100%;
}

.site-branding {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.site-title {
  font-size: 1.25rem;
  font-weight: 800;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.03em;
}

.site-title a {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-decoration: none;
}

.site-description {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  display: none;
}

/* Main Navigation Bar (Below Hero) */
.main-nav-bar {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--glass-border);
  border-top: 1px solid var(--glass-border);
  position: relative;
  z-index: 90;
  padding: 0;
  margin-bottom: 0;
}

.main-nav-bar .container {
  display: flex;
  justify-content: center;
}

/* Primary Navigation */
.main-navigation ul {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.main-navigation li {
  position: relative;
}

.main-navigation a {
  display: block;
  padding: var(--space-md) var(--space-lg);
  color: var(--color-text);
  font-size: 1.15rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  position: relative;
}

.main-navigation a::after {
  content: '';
  position: absolute;
  bottom: 8px;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 60%;
  height: 2px;
  background: var(--gradient-accent);
  border-radius: var(--radius-full);
  transition: transform var(--transition-base);
}

.main-navigation a:hover::after,
.main-navigation .current-menu-item a::after {
  transform: translateX(-50%) scaleX(1);
}

.main-navigation a:hover {
  color: var(--color-white);
  background: rgba(255, 255, 255, 0.05);
}

/* Sub-menu */
.main-navigation ul ul {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: var(--space-sm);
  flex-direction: column;
  gap: 0;
  box-shadow: var(--shadow-lg);
  animation: fadeInDown 0.3s ease;
}

.main-navigation li:hover>ul {
  display: flex;
}

.main-navigation ul ul a {
  padding: var(--space-sm) var(--space-md);
  font-size: 0.85rem;
}

.main-navigation ul ul a::after {
  display: none;
}

/* Sub-menu Toggle (Desktop - Hidden) */
.sub-menu-toggle {
  display: none;
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
  flex-direction: column;
  gap: 5px;
  z-index: 1001;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

.menu-overlay {
  display: none !important; /* Disabled since full-screen navigation darkens background natively */
}

/* ========================================
   Hero Section
   ======================================== */
.hero-section {
  position: relative;
  min-height: 75vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: var(--gradient-hero);
  background-size: cover;
  background-position: center center;
  background-blend-mode: overlay;
  overflow: hidden;
  padding: var(--space-4xl) var(--space-xl);
}

/* ダダイズム背景画像上のテキスト可読性オーバーレイ */
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg,
      rgba(10, 22, 40, 0.72) 0%,
      rgba(15, 32, 53, 0.60) 40%,
      rgba(30, 58, 95, 0.55) 70%,
      rgba(10, 22, 40, 0.80) 100%);
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 700px;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 900;
  margin-bottom: var(--space-lg);
  line-height: 1.2;
  letter-spacing: -0.04em;
  text-align: center; /* タイトルを確実に中央揃えにする */
  word-break: normal;
  overflow-wrap: break-word;
}

.hero-title .gradient-text {
  color: #00fff9; /* 見やすい明るい水色の単色に変更 */
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.4); /* 背景に埋もれないよう軽い影を付ける */
  display: inline;
}

.hero-description {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-2xl);
  line-height: 1.8;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-2xl);
  background: var(--gradient-button);
  color: var(--color-white);
  font-weight: 600;
  font-size: 1rem;
  border-radius: var(--radius-full);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  box-shadow: 0 4px 20px rgba(37, 99, 168, 0.4);
  text-decoration: none;
}

.hero-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(37, 99, 168, 0.6);
  color: var(--color-white);
}

.hero-scroll-indicator {
  position: absolute;
  bottom: var(--space-2xl);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-text-muted);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  animation: bounce 2s ease-in-out infinite;
}

.hero-scroll-indicator::after {
  content: '';
  width: 1px;
  height: 30px;
  background: linear-gradient(to bottom, var(--color-text-muted), transparent);
}


/* ========================================
   Post Cards
   ======================================== */
.posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: var(--space-xl);
}

.category-section {
  margin-bottom: var(--space-4xl);
}

.category-section:last-of-type {
  margin-bottom: var(--space-2xl);
}

.section-footer {
  margin-top: var(--space-2xl);
  text-align: center;
}

.view-all-link {
  display: inline-flex;
  align-items: center;
  padding: var(--space-sm) var(--space-2xl);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  color: var(--color-light-blue);
  font-weight: 600;
  font-size: 0.9rem;
  transition: all var(--transition-base);
}

.view-all-link:hover {
  background: var(--gradient-button);
  color: var(--color-white);
  border-color: transparent;
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(37, 99, 168, 0.3);
}

.post-card {
  background: var(--gradient-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
  position: relative;
}

.post-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-accent);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.post-card:hover {
  transform: translateY(-8px) scale(1.01); /* Subtle lift and scale */
  box-shadow: 
    0 20px 40px rgba(0, 0, 0, 0.3),
    0 0 20px rgba(255, 102, 0, 0.15);
  border-color: rgba(255, 150, 50, 0.3);
}

.post-card:hover::before {
  opacity: 1;
}

.post-card__thumbnail {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
}

.post-card__thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.post-card:hover .post-card__thumbnail img {
  transform: scale(1.05);
}

.post-card__thumbnail-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 50%, rgba(10, 22, 40, 0.8));
}

.post-card__body {
  padding: var(--space-xl);
}

.post-card__meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.post-card__category {
  display: inline-flex;
  padding: var(--space-xs) var(--space-sm);
  background: rgba(74, 144, 217, 0.15);
  color: var(--color-light-blue);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  position: relative;
  z-index: 2;
  /* カード全体のリンクより手前にする */
}

.post-card__category:hover {
  background: rgba(74, 144, 217, 0.3);
  color: var(--color-white);
}

.post-card__title {
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
  line-height: 1.4;
}

.post-card__title a {
  color: var(--color-white);
  transition: color var(--transition-fast);
}

/* 記事カード全体をクリッカブルにする（aタグをカードいっぱいに広げる） */
.post-card__title a::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
}

.post-card__title a:hover {
  color: var(--color-light-blue);
}

.post-card__excerpt {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-lg);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-card__readmore {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-light-blue);
  font-size: 0.85rem;
  font-weight: 600;
  transition: all var(--transition-fast);
  position: relative;
  z-index: 2;
  /* カード全体リンクより手前にする */
  gap: var(--space-sm);
  color: var(--color-light-blue);
  font-size: 0.85rem;
  font-weight: 600;
  transition: all var(--transition-fast);
}

.post-card__readmore::after {
  content: '→';
  transition: transform var(--transition-fast);
}

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

.post-card__readmore:hover::after {
  transform: translateX(4px);
}

/* Single Post without thumbnail */
.post-card--no-thumb .post-card__body {
  padding-top: var(--space-2xl);
}

/* ========================================
   Section Titles
   ======================================== */
.section-title {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 800;
  margin-bottom: var(--space-sm);
  position: relative;
}

.section-subtitle {
  color: var(--color-text-muted);
  font-size: 1rem;
  margin-bottom: var(--space-3xl);
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section-header::after {
  display: none; /* セクションの下線を削除 */
}

/* ========================================
   Single Post / Page
   ======================================== */
.single-post-header {
  text-align: center;
  padding: var(--space-4xl) var(--space-xl) var(--space-2xl);
  margin-top: 80px;
  background: linear-gradient(to bottom, transparent, rgba(0, 0, 0, 0.45));
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--glass-border);
}

.back-to-home-link {
  display: inline-flex;
  align-items: center;
  margin-bottom: var(--space-lg);
  color: var(--color-light-blue);
  font-size: 0.95rem;
  font-weight: 600;
  padding: var(--space-xs) var(--space-md);
  background: rgba(74, 144, 217, 0.1);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

.back-to-home-link:hover {
  background: rgba(74, 144, 217, 0.25);
  color: var(--color-white);
  transform: translateX(-4px);
}

.single-post-header .post-card__category {
  margin-bottom: var(--space-md);
}

.single-post-header h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: var(--space-lg);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.single-post-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xl);
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.single-post-meta .meta-item {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.post-thumbnail-full {
  max-width: 900px;
  margin: 0 auto var(--space-3xl);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.post-thumbnail-full img {
  width: 100%;
  height: auto;
}

/* Entry Content */
.entry-content {
  max-width: var(--container-narrow);
  margin: var(--space-3xl) auto;
  padding: var(--space-2xl) var(--space-xl);
  font-size: 1.05rem;
  line-height: 2;
  transition: all 0.5s ease;
  background: rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 15px 50px rgba(0, 0, 0, 0.5);
}

/* Vertical Writing Mode refined */
.entry-content.is-vertical {
  writing-mode: vertical-rl;
  -webkit-writing-mode: vertical-rl;
  height: auto !important; /* Allow vertical expansion for "Vertical Scroll" style */
  min-height: 70vh;
  width: fit-content !important;
  max-width: 92vw !important;
  overflow-x: auto;
  overflow-y: visible !important;
  padding: 3rem 4rem 6rem 3rem !important; /* Bottom padding increased for vertical scrolling space */
  margin: var(--space-2xl) auto !important;
  border: 1px solid var(--glass-border);
  background: rgba(0, 0, 0, 0.25);
  border-radius: var(--radius-lg);
  display: block !important;
  box-sizing: border-box;
}

body.is-vertical-active .container {
  max-width: 95vw !important;
}

.is-vertical-active .content-area.no-sidebar {
  max-width: 100% !important;
}

.entry-content.is-vertical p,
.entry-content.is-vertical h2,
.entry-content.is-vertical h3,
.entry-content.is-vertical ul,
.entry-content.is-vertical ol {
  margin: 0 0 0 var(--space-2xl); /* Margin between vertical columns */
  height: 100%;
}

.entry-content.is-vertical h2,
.entry-content.is-vertical h3 {
  font-family: "Noto Serif JP", serif;
  border-left: none;
  border-bottom: 2px solid var(--color-light-blue);
  padding-left: 0;
  padding-bottom: var(--space-xs);
}

/* Scrollbar styling for horizontal scroll in vertical mode */
.entry-content.is-vertical::-webkit-scrollbar {
  height: 8px;
}
.entry-content.is-vertical::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.05);
}
.entry-content.is-vertical::-webkit-scrollbar-thumb {
  background: var(--gradient-accent);
  border-radius: var(--radius-full);
}

.entry-content h2 {
  margin-top: var(--space-3xl);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-sm);
  /* border-bottom を削除 */
}

.entry-content h3 {
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-md);
}

.entry-content p {
  margin-bottom: var(--space-lg);
}

.entry-content ul,
.entry-content ol {
  margin: var(--space-lg) 0;
  padding-left: var(--space-xl);
}

.entry-content ul {
  list-style: disc;
}

.entry-content ol {
  list-style: decimal;
}

.entry-content li {
  margin-bottom: var(--space-sm);
}

.entry-content blockquote {
  margin: var(--space-2xl) 0;
  padding: var(--space-xl) var(--space-2xl);
  background: var(--glass-bg);
  border-left: 4px solid var(--color-sky-blue);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-style: italic;
  color: var(--color-ice-blue);
}

.entry-content pre {
  margin: var(--space-2xl) 0;
  padding: var(--space-xl);
  background: rgba(10, 22, 40, 0.8);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  overflow-x: auto;
  font-size: 0.9rem;
  line-height: 1.6;
}

.entry-content code {
  padding: 2px 6px;
  background: rgba(74, 144, 217, 0.15);
  border-radius: 4px;
  font-size: 0.9em;
  color: var(--color-light-blue);
}

.entry-content pre code {
  padding: 0;
  background: none;
  border-radius: 0;
  color: var(--color-text);
}

.entry-content a {
  color: var(--color-light-blue);
  border-bottom: 1px solid rgba(100, 181, 246, 0.3);
  transition: all var(--transition-fast);
}

.entry-content a:hover {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.entry-content img {
  border-radius: var(--radius-md);
  margin: var(--space-2xl) auto;
  box-shadow: var(--shadow-md);
}

.entry-content table {
  width: 100%;
  margin: var(--space-2xl) 0;
  border-collapse: collapse;
}

.entry-content th,
.entry-content td {
  padding: var(--space-md);
  border: 1px solid var(--glass-border);
  text-align: left;
}

.entry-content th {
  background: var(--glass-bg);
  font-weight: 600;
  color: var(--color-white);
}

/* ========================================
   Sidebar
   ======================================== */
.sidebar {
  position: static;
}

.widget {
  background: var(--gradient-card);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  margin-bottom: var(--space-xl);
  transition: border-color var(--transition-base);
}

.widget:hover {
  border-color: rgba(74, 144, 217, 0.2);
}

.widget-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-sm);
  /* border-bottom を削除 */
  position: relative;
  color: var(--color-white);
}

/* .widget-title::after の青い線を削除 */

.widget ul li {
  padding: var(--space-sm) 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

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

.widget ul li a {
  color: var(--color-text);
  font-size: 0.9rem;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.widget ul li a::before {
  content: '›';
  color: var(--color-sky-blue);
  font-weight: bold;
  transition: transform var(--transition-fast);
}

.widget ul li a:hover {
  color: var(--color-light-blue);
  padding-left: var(--space-sm);
}

.widget ul li a:hover::before {
  transform: translateX(2px);
}

/* Search Widget */
.search-form {
  display: flex;
  gap: 0;
}

.search-form .search-field {
  flex: 1;
  padding: var(--space-sm) var(--space-md);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  border-right: none;
  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
  color: var(--color-text);
  font-size: 0.9rem;
  outline: none;
  transition: border-color var(--transition-fast);
}

.search-form .search-field:focus {
  border-color: var(--color-sky-blue);
}

.search-form .search-submit {
  padding: var(--space-sm) var(--space-md);
  background: var(--gradient-button);
  border: none;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--color-white);
  cursor: pointer;
  font-weight: 600;
  transition: opacity var(--transition-fast);
}

.search-form .search-submit:hover {
  opacity: 0.85;
}

/* ========================================
   Comments
   ======================================== */
.comments-area {
  max-width: var(--container-narrow);
  margin: var(--space-3xl) auto;
  padding: 0 var(--space-xl);
}

.comments-title {
  font-size: 1.5rem;
  margin-bottom: var(--space-2xl);
}

.comment-list {
  list-style: none;
}

.comment {
  background: var(--gradient-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  margin-bottom: var(--space-lg);
}

.comment .children {
  margin-top: var(--space-lg);
  padding-left: var(--space-xl);
  border-left: 2px solid var(--glass-border);
}

.comment-meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.comment-author img {
  border-radius: var(--radius-full);
  border: 2px solid var(--glass-border);
}

.comment-author .fn {
  font-weight: 600;
  color: var(--color-white);
}

.comment-metadata {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.comment-content p {
  font-size: 0.95rem;
}

.comment-reply-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-md);
  background: rgba(74, 144, 217, 0.1);
  border: 1px solid rgba(74, 144, 217, 0.2);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-light-blue);
  margin-top: var(--space-sm);
  transition: all 0.3s ease;
}

.comment-reply-link:hover {
  background: var(--color-sky-blue);
  border-color: var(--color-sky-blue);
  color: var(--color-white);
  transform: translateX(5px);
  box-shadow: 0 4px 12px rgba(74, 144, 217, 0.3);
}

/* Comment Form */
.comment-respond {
  background: var(--gradient-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  margin-top: var(--space-2xl);
}

.comment-respond .comment-reply-title {
  font-size: 1.25rem;
  margin-bottom: var(--space-lg);
}

.comment-form p {
  margin-bottom: var(--space-md);
}

.comment-form label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
  color: var(--color-text-muted);
}

.comment-form input[type="text"],
.comment-form input[type="email"],
.comment-form input[type="url"],
.comment-form textarea {
  width: 100%;
  padding: var(--space-md);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  outline: none;
  transition: border-color var(--transition-fast);
}

.comment-form input:focus,
.comment-form textarea:focus {
  border-color: var(--color-sky-blue);
  box-shadow: 0 0 15px rgba(74, 144, 217, 0.4), inset 0 0 5px rgba(74, 144, 217, 0.2);
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-2px);
}

.comment-form textarea {
  min-height: 150px;
  resize: vertical;
}

.comment-form .form-submit .submit {
  padding: var(--space-md) var(--space-2xl);
  background: var(--gradient-button);
  border: none;
  border-radius: var(--radius-full);
  color: var(--color-white);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  box-shadow: 0 4px 15px rgba(37, 99, 168, 0.3);
  position: relative;
  overflow: hidden;
}

.comment-form .form-submit .submit:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 12px 30px rgba(74, 144, 217, 0.5);
  letter-spacing: 1px;
}

.comment-form .form-submit .submit:active {
  transform: translateY(-1px) scale(0.98);
}

.comment-form .form-submit .submit::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(45deg, transparent, rgba(255,255,255,0.1), transparent);
  transform: rotate(45deg);
  transition: all 0.6s ease;
  pointer-events: none;
}

.comment-form .form-submit .submit:hover::after {
  left: 100%;
}

/* ========================================
   Pagination
   ======================================== */
.pagination,
.post-navigation {
  margin-top: var(--space-3xl);
}

.pagination .nav-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.pagination .page-numbers {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  height: 44px;
  padding: var(--space-sm) var(--space-md);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-weight: 500;
  transition: all var(--transition-fast);
}

.pagination .page-numbers:hover,
.pagination .page-numbers.current {
  background: var(--gradient-button);
  border-color: var(--color-sky-blue);
  color: var(--color-white);
}

/* Post Navigation (single) */
.post-navigation .nav-links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
}

.post-navigation .nav-previous,
.post-navigation .nav-next {
  background: var(--gradient-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all var(--transition-base);
}

.post-navigation .nav-previous:hover,
.post-navigation .nav-next:hover {
  border-color: rgba(74, 144, 217, 0.3);
  transform: translateY(-2px);
}

.post-navigation .nav-next {
  text-align: right;
}

.post-navigation .meta-nav {
  display: block;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.post-navigation .post-title {
  color: var(--color-white);
  font-weight: 600;
}

/* ========================================
   Footer
   ======================================== */
.site-footer {
  background: var(--gradient-footer);
  border-top: 1px solid var(--glass-border);
  padding: var(--space-4xl) 0 var(--space-xl);
  margin-top: var(--space-4xl);
}

.footer-widgets {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3xl);
  margin-bottom: var(--space-3xl);
}

.footer-widgets .widget {
  background: transparent;
  border: none;
  padding: 0;
  backdrop-filter: none;
}

/* ========================================
   Sidebar Widget Centering
   ======================================== */
#secondary .widget {
  text-align: center;
}

#secondary .widget img {
  display: block;
  margin-left: auto;
  margin-right: auto;
}

#secondary .widget-title {
  text-align: center;
}

#secondary .textwidget,
#secondary .widget_custom_html .textwidget {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.footer-widgets .widget:hover {
  border-color: transparent;
}

.footer-widgets .widget-title {
  border-bottom-color: rgba(255, 255, 255, 0.1);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-xl);
  border-top: 1px solid var(--glass-border);
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.footer-bottom a {
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.footer-bottom a:hover {
  color: var(--color-light-blue);
}

.back-to-top {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-md);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  font-size: 0.8rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.back-to-top:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-white);
}

/* ========================================
   404 Page
   ======================================== */
.error-404 {
  text-align: center;
  padding: var(--space-4xl) var(--space-xl);
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.error-404 .error-code {
  font-size: clamp(6rem, 15vw, 12rem);
  font-weight: 900;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: var(--space-lg);
  opacity: 0.8;
}

.error-404 h1 {
  font-size: 1.75rem;
  margin-bottom: var(--space-md);
}

.error-404 p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-2xl);
}

/* ========================================
   Animations
   ======================================== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {

  0%,
  100% {
    transform: scale(1);
    opacity: 0.5;
  }

  50% {
    transform: scale(1.1);
    opacity: 1;
  }
}

@keyframes bounce {

  0%,
  100% {
    transform: translateX(-50%) translateY(0);
  }

  50% {
    transform: translateX(-50%) translateY(8px);
  }
}

.reveal-up,
.reveal-left {
  /* opacity: 0; */
  /* transform: translateY(30px); */
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.reveal-left {
  transform: translateX(-30px);
}

.reveal-up.is-visible,
.reveal-left.is-visible,
.fade-in-up.visible {
  opacity: 1;
  transform: translate(0, 0);
}

/* Below Posts Widget Area */
.below-posts-area {
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-2xl);
  padding: var(--space-2xl);
  background: var(--gradient-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-2xl);
  backdrop-filter: blur(10px);
  text-align: center; /* 全体を中央寄せ */
  max-width: var(--container-max-width, 1200px); /* コンテナの最大幅を考慮 */
  margin-left: auto;
  margin-right: auto;
}

.below-posts-area .widget {
  margin-bottom: var(--space-3xl);
  background: transparent;
  border: none;
  backdrop-filter: none;
  padding: 0;
  width: 100%; /* 幅を確保 */
}

.below-posts-area .widget:last-child {
  margin-bottom: 0;
}

.below-posts-area .widget-title {
  text-align: center;
  margin-bottom: var(--space-xl);
  font-size: 1.5rem;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.below-posts-area .textwidget {
  line-height: 1.8;
  color: var(--color-white);
  text-align: center; /* 文章を中央寄せ */
  max-width: 800px; /* 読みやすい幅に制限 */
  margin: 0 auto; /* 制限した幅の中で中央寄せ */
}

/* ========================================
   Accessibility
   ======================================== */
.screen-reader-text {
  border: 0;
  clip: rect(1px, 1px, 1px, 1px);
  clip-path: inset(50%);
  height: 1px;
  margin: -1px;
  overflow: hidden;
  padding: 0;
  position: absolute;
  width: 1px;
  word-wrap: normal !important;
}

.screen-reader-text:focus {
  background-color: var(--color-white);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
  clip: auto !important;
  clip-path: none;
  color: var(--color-text-dark);
  display: block;
  font-size: 0.9rem;
  font-weight: 700;
  height: auto;
  left: 5px;
  line-height: normal;
  padding: var(--space-md) var(--space-xl);
  text-decoration: none;
  top: 5px;
  width: auto;
  z-index: 100000;
}

/* ========================================
   WordPress Defaults
   ======================================== */
.alignleft {
  float: left;
  margin-right: var(--space-xl);
  margin-bottom: var(--space-md);
}

.alignright {
  float: right;
  margin-left: var(--space-xl);
  margin-bottom: var(--space-md);
}

.aligncenter {
  display: block;
  margin: var(--space-xl) auto;
}

.wp-caption {
  max-width: 100%;
}

.wp-caption-text {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  text-align: center;
  margin-top: var(--space-sm);
}

/* Footer Navigation */
.footer-navigation {
  margin-top: 0;
  margin-bottom: var(--space-3xl);
}

.footer-menu-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--space-lg) var(--space-2xl);
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-menu-list a {
  color: var(--color-white);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  transition: color var(--transition-fast);
  padding: var(--space-xs) 0;
}

.footer-menu-list a:hover {
  color: var(--color-sky-blue);
  text-shadow: 0 0 10px rgba(100, 181, 246, 0.4);
}

@media (max-width: 768px) {
  .footer-menu-list {
    flex-direction: column;
    gap: var(--space-md);
  }
}

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--space-md);
  margin: var(--space-2xl) 0;
}

.gallery-item img {
  border-radius: var(--radius-sm);
}

.sticky .post-card {
  border-color: var(--color-sky-blue);
  box-shadow: var(--shadow-glow);
}

/* ========================================
   Contact Form / Page
   ======================================== */
.contact-page-wrapper {
  padding: calc(var(--space-2xl) + 60px) var(--space-md) var(--space-xl);
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-wrap {
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
}

.contact-header {
  margin-bottom: var(--space-xl);
}

.contact-title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  margin-bottom: var(--space-sm);
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.contact-header-sub {
  color: var(--color-text-muted);
  font-size: 1.1rem;
  margin-bottom: 0;
}

.contact-intro {
  margin-bottom: var(--space-3xl);
  text-align: center;
}

.contact-form {
  background: var(--gradient-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl) var(--space-2xl);
  box-shadow: var(--shadow-lg);
  text-align: left;
}

.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: var(--space-sm);
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--color-text);
  font-size: 1rem;
}

.form-required {
  font-size: 0.75rem;
  background: rgba(255, 60, 100, 0.2);
  color: #ff5277;
  padding: 3px 8px;
  border-radius: 6px;
}

.form-input {
  width: 100%;
  padding: var(--space-md);
  background: rgba(10, 22, 40, 0.5);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--color-white);
  font-family: inherit;
  font-size: 1rem;
  transition: all var(--transition-base);
  text-align: left;
}

/* input.form-input の固定高さ(150px)は削除し、標準に戻す */
input.form-input {
  height: auto;
}

.form-input:focus {
  outline: none;
  background: rgba(15, 32, 53, 0.8);
  border-color: var(--color-sky-blue);
  box-shadow: 0 0 0 3px rgba(74, 144, 217, 0.2);
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
  border-radius: var(--radius-md);
}

.form-error {
  display: block;
  color: #ff5277;
  font-size: 0.85rem;
  margin-top: var(--space-xs);
  min-height: 1.2rem;
  text-align: left;
}

/* Checkbox */
.form-group--check {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  margin-top: var(--space-md);
}

.form-check-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  cursor: pointer;
  user-select: none;
}

.form-check {
  position: absolute;
  opacity: 0;
  cursor: pointer;
}

.form-check-custom {
  width: 20px;
  height: 20px;
  border: 2px solid var(--color-text-muted);
  border-radius: 4px;
  position: relative;
  transition: all var(--transition-fast);
}

.form-check:checked~.form-check-custom {
  background-color: var(--color-sky-blue);
  border-color: var(--color-sky-blue);
}

.form-check:checked~.form-check-custom::after {
  content: '';
  position: absolute;
  left: 5px;
  top: 1px;
  width: 5px;
  height: 10px;
  border: solid white;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.form-submit {
  text-align: center;
  margin-top: var(--space-2xl);
}

.contact-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  padding: var(--space-lg) var(--space-4xl);
  background: var(--gradient-button);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-full);
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-base);
  box-shadow: 0 4px 20px rgba(37, 99, 168, 0.4);
  position: relative;
}

.contact-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(37, 99, 168, 0.6);
}

.contact-btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.contact-btn__loading {
  display: none;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: #fff;
  animation: spin 1s ease-in-out infinite;
  position: absolute;
  right: 1.5rem;
}

.contact-btn.is-loading .contact-btn__text {
  opacity: 0.8;
}

.contact-btn.is-loading .contact-btn__icon {
  display: none;
}

.contact-btn.is-loading .contact-btn__loading {
  display: block;
}

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

.contact-result {
  margin-top: var(--space-xl);
  padding: var(--space-md);
  border-radius: var(--radius-sm);
  text-align: center;
  font-weight: 600;
  display: none;
}

.contact-result.success {
  display: block;
  background: rgba(0, 212, 100, 0.1);
  color: #00d464;
  border: 1px solid rgba(0, 212, 100, 0.3);
}

.contact-result.error {
  display: block;
  background: rgba(255, 60, 100, 0.1);
  color: #ff5277;
  border: 1px solid rgba(255, 60, 100, 0.3);
}

/* ========================================
   Responsive Design
   ======================================== */
/* ========================================
   Responsive: Tablet (≤1024px)
   ======================================== */
@media (max-width: 1024px) {
  .content-area {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

  .sidebar {
    position: static;
    width: 100%;
  }

  /* サイドバーをウィジェット横並びに */
  .sidebar>.widget {
    display: inline-block;
    width: calc(50% - var(--space-md));
    vertical-align: top;
    margin-bottom: var(--space-xl);
  }

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

  .post-navigation .nav-links {
    grid-template-columns: 1fr;
  }

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

  .single-post-meta {
    gap: var(--space-md);
    flex-wrap: wrap;
    justify-content: center;
  }
}

/* ========================================
   Responsive: Mobile (≤768px)
   ======================================== */
@media (max-width: 768px) {

  .header-inner {
    justify-content: flex-end;
  }

  /* ---- Navigation ---- */
  .menu-toggle {
    display: flex;
  }

  .main-navigation {
    position: fixed;
    top: 0;
    right: -100%;
    width: 85%;
    max-width: 380px;
    height: 100vh;
    background: var(--color-deep-navy);
    padding: 80px var(--space-xl) var(--space-xl);
    transition: right var(--transition-base);
    z-index: 999;
    overflow-y: auto;
    border-left: 1px solid var(--glass-border);
    box-shadow: -8px 0 32px rgba(0, 0, 0, 0.4);
  }

  .main-navigation.toggled {
    right: 0;
  }

  .main-navigation ul {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .main-navigation>ul>li>a {
    padding: var(--space-lg) var(--space-md);
    font-size: 1.25rem;
    font-weight: 600;
    border-bottom: 1px solid var(--glass-border);
  }

  .main-navigation ul ul {
    position: static;
    border: none;
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-sm);
    box-shadow: none;
    padding: 0;
    margin-top: var(--space-xs);
  }

  .main-navigation ul ul a {
    padding-left: var(--space-xl);
    padding-top: var(--space-md);
    padding-bottom: var(--space-md);
    font-size: 1.1rem;
  }

  .menu-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 998;
  }

  .menu-overlay.active {
    display: block;
  }

  /* ---- Hero ---- */
  .hero-section {
    min-height: 55vh;
    padding: calc(var(--space-4xl) + 40px) var(--space-lg) var(--space-3xl);
  }

  .hero-title {
    font-size: clamp(1.8rem, 8vw, 2.8rem);
    letter-spacing: -0.03em;
  }

  .hero-cta {
    width: 100%;
    justify-content: center;
    padding: var(--space-md) var(--space-xl);
  }

  .hero-scroll-indicator {
    display: none;
  }

  /* ---- Layout ---- */
  .container {
    padding: 0 var(--space-md);
  }

  .site-content {
    padding: var(--space-2xl) 0;
  }

  /* ---- Posts Grid: 1列 ---- */
  .posts-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .post-card__body {
    padding: var(--space-lg);
  }

  /* ---- Sidebar: 全幅ウィジェット ---- */
  .sidebar>.widget {
    display: block;
    width: 100%;
  }

  /* ---- Single Post ---- */
  .single-post-header {
    padding: calc(var(--space-3xl) + 60px) var(--space-md) var(--space-lg);
    margin-top: 0;
  }

  .single-post-header h1 {
    font-size: clamp(1.5rem, 5vw, 2rem);
  }

  .single-post-meta {
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.85rem;
  }

  .entry-content {
    padding: 0 var(--space-md);
    font-size: 1rem;
  }

  .entry-content h2 {
    font-size: 1.3rem;
    margin-top: var(--space-2xl);
  }

  .entry-content h3 {
    font-size: 1.15rem;
  }

  .entry-content blockquote {
    padding: var(--space-lg);
    margin: var(--space-xl) 0;
  }

  /* ---- SNS Share ---- */
  .sns-share {
    padding: var(--space-lg);
    margin: var(--space-2xl) 0 0;
  }

  .sns-share__buttons {
    gap: var(--space-xs);
  }

  .sns-btn {
    padding: 0.5rem 0.9rem;
    font-size: 0.78rem;
  }

  /* ---- Post Navigation ---- */
  .post-navigation .nav-links {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  /* ---- Footer ---- */
  .footer-widgets {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }

  .footer-bottom .back-to-top {
    order: -1;
  }
}

/* ========================================
   Responsive: Small Mobile (≤480px)
   ======================================== */
@media (max-width: 480px) {
  html {
    font-size: 14px;
  }

  /* ---- Hero ---- */
  .hero-section {
    min-height: 50vh;
  }

  .hero-title {
    font-size: clamp(1.6rem, 9vw, 2.2rem);
  }

  /* ---- Container ---- */
  .container {
    padding: 0 var(--space-md);
  }

  /* ---- Post Card ---- */
  .post-card__thumbnail {
    aspect-ratio: 16 / 8;
  }

  .post-card__title {
    font-size: 1.1rem;
  }

  /* ---- SNS Buttons ---- */
  .sns-share__buttons {
    gap: var(--space-xs);
  }

  .sns-btn {
    padding: 0.45rem 0.8rem;
    font-size: 0.74rem;
    gap: 0.3rem;
  }

  .sns-btn svg {
    width: 15px;
    height: 15px;
  }

  /* ---- Comments ---- */
  .comment-body {
    padding: var(--space-md);
  }

  /* ---- Page Header ---- */
  .page-header {
    padding: calc(var(--space-3xl) + 60px) var(--space-md) var(--space-lg);
  }
}

/* ========================================
   SNS Share Buttons
   ======================================== */
.sns-share {
  max-width: var(--container-narrow);
  margin: var(--space-3xl) auto 0;
  padding: var(--space-xl) var(--space-xl);
  background: var(--gradient-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
}

.sns-share__label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-md);
}

.sns-share__buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.sns-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.55rem 1.1rem;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  border: none;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), filter var(--transition-fast);
  color: #fff;
}

.sns-btn:hover {
  transform: translateY(-2px);
  filter: brightness(1.1);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
  color: #fff;
}

.sns-btn--x {
  background: #000;
}

.sns-btn--facebook {
  background: #1877f2;
}

.sns-btn--line {
  background: #06c755;
}

.sns-btn--hatena {
  background: #00a4de;
}

.sns-btn--copy {
  background: rgba(74, 144, 217, 0.25);
  border: 1px solid var(--glass-border);
  color: var(--color-light-blue);
}

.sns-btn--copy:hover {
  color: var(--color-white);
}

.sns-btn__hatena-b {
  font-size: 0.9rem;
  font-weight: 900;
  font-style: italic;
  line-height: 1;
}

.sns-btn--copy.copied {
  background: rgba(0, 212, 100, 0.25);
  border-color: rgba(0, 212, 100, 0.4);
  color: #00d464;
}

@media (max-width: 480px) {
  .sns-share__buttons {
    gap: var(--space-xs);
  }

  .sns-btn {
    padding: 0.5rem 0.9rem;
    font-size: 0.78rem;
  }
}

/* ========================================================
   BOLD DESIGN: Particle Canvas
   ======================================================== */
#aozora-particles {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* ========================================================
   BOLD DESIGN: Neon Cursor Trail
   ======================================================== */
#aozora-cursor,
#aozora-cursor-inner {
  position: fixed;
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  mix-blend-mode: screen;
  transform: translate(-50%, -50%);
  transition: width 0.2s ease, height 0.2s ease, opacity 0.2s ease;
}

#aozora-cursor {
  width: 36px;
  height: 36px;
  background: transparent;
  border: 2px solid var(--color-neon-cyan);
  box-shadow: var(--neon-glow-cyan);
  opacity: 0.7;
  transition: transform 0.12s ease, width 0.2s ease, height 0.2s ease;
}

#aozora-cursor-inner {
  width: 8px;
  height: 8px;
  background: var(--color-neon-cyan);
  box-shadow: var(--neon-glow-cyan);
  transition: transform 0.04s linear;
}

#aozora-cursor.hover-state {
  width: 60px;
  height: 60px;
  border-color: var(--color-neon-magenta);
  box-shadow: var(--neon-glow-magenta);
}

@media (pointer: coarse) {

  #aozora-cursor,
  #aozora-cursor-inner {
    display: none;
  }
}

/* ========================================================
   BOLD DESIGN: Floating Orbs
   ======================================================== */
.aozora-orbs {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.18;
  /* animation: orbFloat linear infinite; */
  animation: none !important;
}

.orb-1 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, #bf00ff, transparent 70%);
  top: -150px;
  left: -100px;
  animation-duration: 22s;
  animation-delay: 0s;
}

.orb-2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, #00fff9, transparent 70%);
  bottom: -100px;
  right: -80px;
  animation-duration: 18s;
  animation-delay: -6s;
}

.orb-3 {
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, #ff00c8, transparent 70%);
  top: 40%;
  left: 60%;
  animation-duration: 26s;
  animation-delay: -12s;
}

.orb-4 {
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, #4a90d9, transparent 70%);
  top: 20%;
  right: 5%;
  animation-duration: 20s;
  animation-delay: -4s;
}

@keyframes orbFloat {
  0% {
    transform: translateY(0px) scale(1);
  }

  25% {
    transform: translateY(-40px) scale(1.05);
  }

  50% {
    transform: translateY(-80px) scale(0.97);
  }

  75% {
    transform: translateY(-30px) scale(1.03);
  }

  100% {
    transform: translateY(0px) scale(1);
  }
}

/* ========================================================
   UIUX Enhancement: Noise Texture Overlay
   ======================================================== */
.noise-overlay {
  position: fixed;
  inset: 0;
  z-index: 1; /* Above background orbs, below content */
  pointer-events: none;
  opacity: 0.04; /* Very subtle */
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

/* ========================================================
   BOLD DESIGN: Scanlines Overlay (Static for readability)
   ======================================================== */
.scanlines {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: repeating-linear-gradient(to bottom,
      transparent 0px,
      transparent 3px,
      rgba(0, 0, 0, 0.03) 3px,
      rgba(0, 0, 0, 0.03) 4px);
  /* animation: scanlineMove 8s linear infinite; */
  animation: none !important;
}

@keyframes scanlineMove {
  0% {
    background-position: 0 0;
  }

  100% {
    background-position: 0 200px;
  }
}

/* ========================================================
   BOLD DESIGN: Glitch Title Effect
   ======================================================== */
.glitch {
  position: relative;
  display: inline-block;
}

.glitch::before,
.glitch::after {
  content: attr(data-glitch);
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.glitch::before {
  color: var(--color-neon-cyan);
  clip-path: polygon(0 20%, 100% 20%, 100% 40%, 0 40%);
  transform: translate(-4px, 0);
  animation: glitchTop 3s infinite linear alternate-reverse;
  opacity: 0.8;
}

.glitch::after {
  color: var(--color-neon-magenta);
  clip-path: polygon(0 60%, 100% 60%, 100% 80%, 0 80%);
  transform: translate(4px, 0);
  animation: glitchBottom 2.5s infinite linear alternate-reverse;
  opacity: 0.8;
}

@keyframes glitchTop {
  0% {
    transform: translate(-4px, 0);
    clip-path: polygon(0 15%, 100% 15%, 100% 35%, 0 35%);
  }

  20% {
    transform: translate(3px, 0);
  }

  40% {
    transform: translate(-2px, 0);
    clip-path: polygon(0 10%, 100% 10%, 100% 45%, 0 45%);
  }

  60% {
    transform: translate(4px, -2px);
  }

  80% {
    transform: translate(0px, 0);
    clip-path: polygon(0 25%, 100% 25%, 100% 30%, 0 30%);
  }

  100% {
    transform: translate(-3px, 0);
  }
}

@keyframes glitchBottom {
  0% {
    transform: translate(4px, 0);
    clip-path: polygon(0 55%, 100% 55%, 100% 75%, 0 75%);
  }

  20% {
    transform: translate(-3px, 0);
  }

  40% {
    transform: translate(2px, 2px);
    clip-path: polygon(0 60%, 100% 60%, 100% 80%, 0 80%);
  }

  60% {
    transform: translate(-4px, 0);
  }

  80% {
    transform: translate(0px, 0);
    clip-path: polygon(0 65%, 100% 65%, 100% 70%, 0 70%);
  }

  100% {
    transform: translate(3px, 0);
  }
}

/* ========================================================
   BOLD DESIGN: Neon Hero Title
   ======================================================== */
.hero-title {
  text-shadow: var(--neon-glow-cyan);
  letter-spacing: -0.02em;
}

/* ========================================================
   BOLD DESIGN: Neon Hero Title
   ======================================================== */
.hero-title {
  letter-spacing: -0.02em;
}

.hero-title .gradient-text {
  background: linear-gradient(135deg, var(--color-neon-cyan), var(--color-neon-purple), var(--color-neon-magenta));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ========================================================
   BOLD DESIGN: 3D Card Tilt + Neon Hover
   ======================================================== */
.post-card {
  transform-style: preserve-3d;
  transition: transform 0.15s ease, box-shadow 0.3s ease, border-color 0.3s ease;
  will-change: transform;
}

.post-card:hover {
  box-shadow:
    var(--shadow-lg),
    0 0 20px rgba(0, 255, 249, 0.25),
    0 0 60px rgba(191, 0, 255, 0.15);
  border-color: rgba(0, 255, 249, 0.4);
}

.post-card::before {
  background: linear-gradient(135deg, var(--color-neon-cyan), var(--color-neon-magenta));
  opacity: 0;
  transition: opacity 0.3s ease;
  height: 2px;
}

.post-card:hover::before {
  opacity: 1;
}

/* ========================================================
   BOLD DESIGN: Scroll Reveal Animations
   ======================================================== */
.reveal-up {
  /* opacity: 0; */
  /* transform: translateY(50px); */
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  /* opacity: 0; */
  /* transform: translateX(-40px); */
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-left.is-visible {
  opacity: 1;
  transform: translateX(0);
}

/* Staggered children */
.reveal-up:nth-child(1) {
  transition-delay: 0.05s;
}

.reveal-up:nth-child(2) {
  transition-delay: 0.12s;
}

.reveal-up:nth-child(3) {
  transition-delay: 0.19s;
}

.reveal-up:nth-child(4) {
  transition-delay: 0.26s;
}

.reveal-up:nth-child(5) {
  transition-delay: 0.33s;
}

.reveal-up:nth-child(6) {
  transition-delay: 0.40s;
}

/* ========================================================
   BOLD DESIGN: Nav Hover Scan Effect
   ======================================================== */
.main-navigation a {
  position: relative;
  overflow: hidden;
}

.main-navigation a::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg,
      transparent 0%,
      rgba(0, 255, 249, 0.15) 50%,
      transparent 100%);
  transition: left 0.4s ease;
}

.main-navigation a:hover::before {
  left: 100%;
}

/* Neon underline on nav */
.main-navigation a::after {
  background: linear-gradient(90deg, var(--color-neon-cyan), var(--color-neon-magenta));
  box-shadow: 0 0 8px var(--color-neon-cyan);
}

/* ========================================================
   BOLD DESIGN: Section Title Neon Accent
   ======================================================== */
.section-header::after {
  background: linear-gradient(90deg, var(--color-neon-cyan), var(--color-neon-purple), var(--color-neon-magenta));
  box-shadow: 0 0 12px rgba(0, 255, 249, 0.5);
  height: 3px;
  width: 80px;
}

/* ========================================================
   BOLD DESIGN: Z-index layering for all global elements
   ======================================================== */
#page {
  position: relative;
  z-index: 2;
}

.site-header {
  z-index: 1001;
}

.aozora-orbs,
#aozora-particles {
  z-index: 0;
}

.scanlines {
  z-index: 1;
}

#aozora-cursor,
#aozora-cursor-inner {
  z-index: 9999;
}

/* Ensure content is readable above the global layers */
.hero-section,
.site-content,
.site-footer {
  position: relative;
  z-index: 2;
}

/* ========================================================
   BOLD DESIGN: Typing cursor blink on hero subtitle (Removed)
   ======================================================== */

/* ========================================================
   BOLD DESIGN: Neon button glow pulse
   ======================================================== */
.hero-cta,
.contact-btn {
  /* animation: glowPulse 3s ease-in-out infinite; */
  animation: none !important;
}

@keyframes glowPulse {

  0%,
  100% {
    box-shadow: 0 4px 20px rgba(37, 99, 168, 0.4);
  }

  50% {
    box-shadow: 0 4px 30px rgba(0, 255, 249, 0.5), 0 0 60px rgba(191, 0, 255, 0.2);
  }
}

/* ========================================================
   BOLD DESIGN: Glitch-style separator
   ======================================================== */
.glitch-divider {
  position: relative;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-neon-cyan), var(--color-neon-magenta), transparent);
  margin: var(--space-3xl) auto;
  animation: glitchLine 4s infinite;
  overflow: visible;
}

.glitch-divider::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 10%;
  width: 20%;
  height: 4px;
  background: var(--color-neon-cyan);
  box-shadow: var(--neon-glow-cyan);
  animation: glitchShift 4s infinite;
}

@keyframes glitchShift {
  0% {
    left: 10%;
    width: 20%;
  }

  30% {
    left: 50%;
    width: 5%;
  }

  60% {
    left: 70%;
    width: 15%;
  }

  100% {
    left: 10%;
    width: 20%;
  }
}

@keyframes glitchLine {

  0%,
  95%,
  100% {
    opacity: 1;
  }

  96% {
    opacity: 0.2;
    transform: scaleX(0.98) translateX(3px);
  }

  97% {
    opacity: 0.8;
    transform: scaleX(1);
  }

  98% {
    opacity: 0.3;
    transform: scaleX(1.01) translateX(-2px);
  }

  99% {
    opacity: 1;
    transform: scaleX(1);
  }
}

/* ========================================================
   UI/UX: Page Fade-In on Load
   ======================================================== */

body.page-loaded {
  opacity: 1;
}

/* ========================================================
   UI/UX: Reading Progress Bar
   ======================================================== */
#reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: linear-gradient(90deg, var(--color-neon-cyan), var(--color-neon-purple), var(--color-neon-magenta));
  z-index: 10000;
  box-shadow: 0 0 8px var(--color-neon-cyan);
  transition: width 0.1s linear;
  border-radius: 0 2px 2px 0;
}

/* ========================================================
   UI/UX: Scroll-Aware Header (hide on scroll down)
   ======================================================== */
.site-header {
  transform: translateY(0);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1),
    background 0.3s ease,
    padding 0.3s ease,
    box-shadow 0.3s ease;
}

.site-header.header-hidden {
  transform: translateY(-100%);
}

/* ========================================================
   UI/UX: Reading Time Badge
   ======================================================== */
.reading-time-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-md);
  background: rgba(255, 204, 0, 0.08);
  border: 1px solid rgba(255, 204, 0, 0.2);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  color: var(--color-neon-cyan);
  margin-top: var(--space-md);
  letter-spacing: 0.02em;
}

.reading-time-badge::before {
  content: '⏱';
  font-size: 0.9rem;
}

/* ========================================================
   UI/UX: Enhanced Back-to-Top with Progress Ring
   ======================================================== */
.back-to-top {
  position: fixed;
  bottom: var(--space-2xl);
  right: var(--space-2xl);
  width: 52px;
  height: 52px;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 204, 0, 0.3);
  border-radius: 50%;
  color: var(--color-neon-cyan);
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 100;
  opacity: 0;
  transform: translateY(20px) scale(0.8);
  transition: all var(--transition-base);
  box-shadow: 0 0 12px rgba(255, 204, 0, 0.2);
  text-decoration: none;
}

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

.back-to-top:hover {
  background: rgba(255, 204, 0, 0.12);
  box-shadow: var(--neon-glow-cyan);
  color: var(--color-white);
  border-color: var(--color-neon-cyan);
}

/* SVG ring completely removed */

@media (max-width: 768px) {
  .back-to-top {
    bottom: var(--space-lg);
    right: var(--space-lg);
    width: 44px;
    height: 44px;
  }
}

/* ========================================================
   UI/UX: Toast Notifications (Moved to left to avoid blocking vertical start)
   ======================================================== */
#aozora-toast-container {
  position: fixed;
  bottom: 90px;
  left: var(--space-xl);
  right: auto;
  z-index: 9998;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  pointer-events: none;
}

.aozora-toast {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--color-white);
  font-size: 0.9rem;
  font-weight: 500;
  box-shadow: var(--shadow-lg), 0 0 20px rgba(255, 204, 0, 0.1);
  opacity: 0;
  transform: translateX(100%);
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: auto;
  min-width: 180px;
  max-width: 300px;
}

.aozora-toast.show {
  opacity: 1;
  transform: translateX(0);
}

.aozora-toast.toast-success {
  border-color: rgba(0, 212, 100, 0.4);
  box-shadow: var(--shadow-lg), 0 0 20px rgba(0, 212, 100, 0.15);
}

.aozora-toast.toast-error {
  border-color: rgba(255, 60, 100, 0.4);
}

.aozora-toast-icon {
  font-size: 1rem;
  flex-shrink: 0;
}

/* ========================================================
   UI/UX: Lazy Load Image Blur-Up Effect
   ======================================================== */
img[data-src] {
  filter: blur(10px);
  transition: filter 0.5s ease;
}

img.loaded {
  filter: blur(0);
}

/* ========================================================
   UI/UX: Improved Focus States (Accessibility)
   ======================================================== */
:focus-visible {
  outline: 2px solid var(--color-neon-cyan);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
  box-shadow: 0 0 0 4px rgba(255, 204, 0, 0.15);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--color-neon-cyan);
  outline-offset: 2px;
  box-shadow: 0 0 0 4px rgba(255, 204, 0, 0.15);
}

/* ========================================================
   UI/UX: Smooth Scroll Indicator for Long Articles
   ======================================================== */
.article-toc {
  background: var(--gradient-card);
  border: 1px solid var(--glass-border);
  border-left: 3px solid var(--color-neon-cyan);
  border-radius: var(--radius-md);
  padding: var(--space-lg) var(--space-xl);
  margin: var(--space-2xl) 0;
  font-size: 0.9rem;
}

.article-toc__title {
  font-weight: 700;
  color: var(--color-neon-cyan);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-md);
}

.article-toc ol {
  list-style: decimal;
  padding-left: var(--space-lg);
  margin: 0;
}

.article-toc li {
  margin-bottom: var(--space-xs);
  color: var(--color-text-muted);
}

.article-toc a {
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
  font-size: 0.88rem;
}

.article-toc a:hover {
  color: var(--color-neon-cyan);
}

/* ========================================================
   UI/UX: Smooth Anchor Offset (fixed header compensation)
   ======================================================== */
[id] {
  scroll-margin-top: 90px;
}

/* ========================================================
   UI/UX: Selection color
   ======================================================== */
::selection {
  background: rgba(255, 204, 0, 0.25);
  color: var(--color-white);
}

::-moz-selection {
  background: rgba(255, 204, 0, 0.25);
  color: var(--color-white);
}

/* ========================================================
   UI/UX: Scrollbar styling (Webkit)
   ======================================================== */
::-webkit-scrollbar {
  width: 6px;
}

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

::-webkit-scrollbar-thumb {
  background: linear-gradient(to bottom, var(--color-neon-cyan), var(--color-neon-purple));
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-neon-cyan);
  box-shadow: var(--neon-glow-cyan);
}

/* ========================================================
   UI/UX: Skip to content (keyboard accessibility)
   ======================================================== */
.screen-reader-text:focus {
  clip: auto;
  clip-path: none;
  height: auto;
  width: auto;
  overflow: visible;
  position: fixed;
  top: var(--space-md);
  left: var(--space-md);
  z-index: 100000;
  background: var(--color-neon-cyan);
  color: var(--color-deep-navy);
  font-weight: 700;
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-md);
  box-shadow: var(--neon-glow-cyan);
}

/* ========================================================
   Below Posts Area (記事一覧下 自己紹介エリア)
   ======================================================== */
.below-posts-area {
  margin-top: var(--space-3xl);
  padding: var(--space-3xl) 0;
  border-top: 1px solid var(--glass-border);
}

.below-posts-widget {
  background: var(--gradient-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl) var(--space-3xl);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-lg), 0 0 20px rgba(255, 204, 0, 0.06);
  border-left: 3px solid var(--color-neon-cyan);
  transition: box-shadow 0.3s ease, border-color 0.3s ease;
  text-align: center;
}

.below-posts-widget:hover {
  box-shadow: var(--shadow-lg), 0 0 30px rgba(255, 204, 0, 0.12);
  border-color: rgba(255, 204, 0, 0.4);
}

.below-posts-widget .widget-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-neon-cyan);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid rgba(255, 204, 0, 0.2);
}

.below-posts-widget img {
  display: block;
  margin-left: auto;
  margin-right: auto;
  border-radius: 50%;
  border: 2px solid rgba(255, 204, 0, 0.3);
  box-shadow: 0 0 16px rgba(255, 204, 0, 0.2);
  max-width: 120px;
  height: auto;
  margin-bottom: var(--space-lg);
}

.below-posts-widget p {
  color: var(--color-text-muted);
  line-height: 1.8;
  font-size: 0.95rem;
}

.below-posts-widget a {
  color: var(--color-neon-cyan);
  transition: color var(--transition-fast);
}

.below-posts-widget a:hover {
  color: var(--color-neon-magenta);
}

@media (min-width: 769px) {
  .below-posts-widget {
    display: flex;
    align-items: center;
    gap: var(--space-3xl);
    text-align: left;
  }

  .below-posts-widget img {
    margin-bottom: 0;
    flex-shrink: 0;
  }

  .below-posts-widget .textwidget {
    flex: 1;
  }
}

/* ========================================================
   RESPONSIVE DESIGN (Tablets & Mobile)
   ======================================================== */

/* Tablet (1024px and below) */
@media (max-width: 1024px) {
  .content-area {
    grid-template-columns: 1fr; /* 2カラムを1カラムに変更 */
  }
  
  .container {
    padding: 0 var(--space-lg);
  }
  
  .hero-section {
    min-height: 50vh;
  }
}

/* Mobile landscape and smaller (768px and below) */
@media (max-width: 768px) {
  body {
    overflow-x: hidden; /* 横スクロール・右側のはみ出し防止 */
    line-height: 1.85;
    letter-spacing: 0.03em;
  }

  .container {
    padding: 0 var(--space-md); /* スマホ画面全体に均等な左右の余白を確保 */
  }

  .hero-title {
    font-size: clamp(2rem, 8vw, 3rem);
  }
  
  .hero-description {
    font-size: 1.1rem;
    line-height: 1.7;
    letter-spacing: 0.02em;
  }

  .menu-toggle {
    display: flex; /* Burger button visible on mobile */
    order: 3;
    margin-left: var(--space-sm);
  }

  .site-branding {
    order: 1;
  }

  .header-controls {
    order: 2;
    margin-left: auto; /* Push controls and burger to the right */
  }

  .header-controls .label {
    display: none; /* Hide text, keep icons on mobile */
  }

  .control-btn {
    padding: var(--space-xs) var(--space-sm);
  }

  .main-nav-bar {
    position: static !important;
    border: none;
    padding: 0;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
  }

  /* Mobile menu overlay logic - Enhanced readability */
  .main-navigation {
    position: fixed !important;
    top: 70px !important;
    left: 0 !important;
    width: 100% !important;
    height: calc(100vh - 70px) !important;
    background: #0f0a05 !important; /* Solid dark background for readability */
    backdrop-filter: blur(10px) !important;
    -webkit-backdrop-filter: blur(10px) !important;
    display: none; /* Changed from flex + opacity for better control */
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding-top: 40px;
    z-index: 2000 !important; /* Extremely high z-index */
    overflow-y: auto;
    border-top: 1px solid var(--glass-border);
  }

  .main-navigation.toggled {
    display: flex !important;
    opacity: 1 !important;
    pointer-events: auto !important;
  }

  .main-navigation ul {
    flex-direction: column;
    align-items: center;
    gap: 0; /* Use padding for spacing */
    width: 100%;
  }

  .main-navigation li {
    width: 100%;
    text-align: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  }

  .main-navigation a {
    font-size: 1.2rem;
    padding: var(--space-lg) var(--space-xl);
    width: 100%;
    display: block;
  }

  /* Sub-menu Accordion Styles - Fixed alignment */
  .menu-item-has-children {
    position: relative;
    display: block;
  }

  .sub-menu-toggle {
    display: flex !important;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.05);
    border: none;
    color: var(--color-light-blue);
    cursor: pointer;
    position: absolute;
    right: 15px;
    top: 5px; /* Adjust based on parent link padding */
    border-radius: 50%;
    z-index: 10;
  }

  .sub-menu-toggle::after {
    content: '';
    width: 8px;
    height: 8px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(45deg);
    margin-top: -4px;
    transition: transform 0.3s ease;
  }

  .sub-menu-open > .sub-menu-toggle::after {
    transform: rotate(-135deg);
    margin-top: 4px;
  }

  .main-navigation .sub-menu {
    display: none;
    width: 100%;
    position: static;
    background: rgba(0, 0, 0, 0.3);
    padding: 0;
    margin: 0;
    border-radius: 0;
    box-shadow: none;
    border: none;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  .sub-menu-open > .sub-menu {
    display: block;
  }

  .main-navigation .sub-menu a {
    font-size: 1rem;
    padding: var(--space-md) var(--space-xl);
    border-bottom: none;
    color: var(--color-text-muted);
  }

  .posts-grid {
    grid-template-columns: 1fr; /* 記事一覧を縦並びに */
  }

  .single-post-header {
    padding: 0; /* 親コンテナ側で余白を持つため固有のpaddingはリセット */
  }

  .single-post-header h1 {
    font-size: clamp(1.8rem, 5vw, 2.5rem);
  }

  .entry-content {
    font-size: 1.1rem;
    line-height: 1.9;
    letter-spacing: 0.03em;
    padding: 0; /* コンテナ側で余白を確保 */
  }
  
  .entry-content pre, 
  .entry-content blockquote {
    margin-left: 0;
    margin-right: 0;
  }
}

/* Small mobile (480px and below) */
@media (max-width: 480px) {
  .site-title {
    font-size: 1rem;
  }

  .control-btn .icon {
    font-size: 1.1rem;
  }

  .hero-cta {
    width: 100%;
    justify-content: center;
  }

  .post-card {
    padding: var(--space-md);
  }
}
/* ========================================================
   Visual Polish: Search Overlay
   ======================================================== */
.search-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(10, 5, 0, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.search-overlay__close {
  position: absolute;
  top: var(--space-xl);
  right: var(--space-xl);
  font-size: 3rem;
  color: var(--color-white);
  cursor: pointer;
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s ease;
}

.search-overlay__close:hover {
  transform: rotate(90deg) scale(1.1);
  color: var(--color-neon-cyan);
}

.search-overlay__content {
  text-align: center;
  width: 100%;
  max-width: 600px;
  transform: translateY(30px);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.search-overlay__title {
  font-size: 2rem;
  margin-bottom: var(--space-2xl);
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.search-overlay form {
  position: relative;
  margin-bottom: var(--space-xl);
}

.search-overlay input[type="search"] {
  width: 100%;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  padding: var(--space-lg) var(--space-xl);
  border-radius: var(--radius-lg);
  color: var(--color-white);
  font-size: 1.5rem;
  text-align: center;
  transition: all 0.3s ease;
}

.search-overlay input[type="search"]:focus {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--color-neon-cyan);
  box-shadow: var(--neon-glow-cyan);
  outline: none;
}

.search-overlay__hint {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  letter-spacing: 0.05em;
}

/* ========================================================
   Visual Polish: Refined Comments Section
   ======================================================== */
.comments-area {
  margin-top: var(--space-4xl);
  padding: var(--space-3xl);
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
}

.comments-title {
  font-size: 1.5rem;
  margin-bottom: var(--space-2xl);
  padding-bottom: var(--space-md);
  border-bottom: 2px solid var(--color-neon-cyan);
  display: inline-block;
}

.comment-list {
  margin-bottom: var(--space-3xl);
}

.comment-body {
  margin-bottom: var(--space-xl);
  padding: var(--space-xl);
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: transform 0.3s ease;
}

.comment-body:hover {
  transform: translateX(10px);
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--color-neon-cyan);
}

.comment-meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.comment-author {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.comment-author img {
  border-radius: 50%;
  border: 2px solid var(--color-neon-cyan);
}

.fn {
  font-weight: 700;
  color: var(--color-white);
}

.comment-metadata {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.comment-content {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--color-text);
}

.reply {
  margin-top: var(--space-md);
  text-align: right;
}

.comment-reply-link {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-neon-cyan);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: var(--space-xs) var(--space-md);
  border: 1px solid rgba(255, 204, 0, 0.3);
  border-radius: var(--radius-full);
  transition: all 0.3s ease;
}

.comment-reply-link:hover {
  background: var(--color-neon-cyan);
  color: var(--color-deep-navy);
  box-shadow: var(--neon-glow-cyan);
}

/* Comment Form Design */
#commentform {
  display: grid;
  gap: var(--space-md);
}

#commentform label {
  display: block;
  font-size: 0.85rem;
  margin-bottom: var(--space-xs);
  color: var(--color-text-muted);
}

#commentform input[type="text"],
#commentform input[type="email"],
#commentform textarea {
  width: 100%;
  padding: var(--space-md);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--color-white);
  transition: all 0.3s ease;
}

#commentform textarea {
  min-height: 150px;
}

#commentform input:focus,
#commentform textarea:focus {
  border-color: var(--color-neon-cyan);
  background: rgba(255, 255, 255, 0.1);
  outline: none;
}

.form-submit input[type="submit"] {
  background: var(--gradient-button);
  color: var(--color-white);
  border: none;
  padding: var(--space-md) var(--space-3xl);
  border-radius: var(--radius-full);
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(255, 102, 0, 0.3);
}

.form-submit input[type="submit"]:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(255, 102, 0, 0.5);
}

/* ========================================
   3D WebGL Background
   ======================================== */
.site-content {
  position: relative;
  /* overflowを隠してキャンバスが要素をはみ出さないようにする */
}

#webgl-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
}

/* ========================================
   3D Tilt Elements (VanillaTilt)
   ======================================== */
.post-card, .widget, .contact-btn {
  transform-style: preserve-3d;
  transform: perspective(1000px);
}

.post-card .post-info, .widget-title, .contact-btn__text {
  transform: translateZ(20px);
}
/* ========================================================
   Visual Polish: Floating Display Controls
   ======================================================== */
.floating-controls {
  position: fixed;
  bottom: var(--space-2xl);
  right: var(--space-2xl);
  z-index: 2101; /* Higher than back-to-top */
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  pointer-events: none;
}

.floating-control-btn {
  pointer-events: auto;
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  color: var(--color-white);
  padding: var(--space-md);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  gap: var(--space-md);
  cursor: pointer;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-lg), 0 0 20px rgba(0, 0, 0, 0.2);
  min-width: 160px;
  text-align: left;
}

.floating-control-btn .icon {
  font-size: 1.5rem;
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
}

.floating-control-btn .label {
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.floating-control-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--color-neon-cyan);
  transform: translateX(-5px);
  box-shadow: var(--shadow-lg), var(--neon-glow-cyan);
}

.floating-control-btn:hover .icon {
  background: var(--gradient-accent);
  color: var(--color-white);
  transform: scale(1.1);
}

.floating-control-btn.active {
  background: var(--gradient-accent);
  border-color: transparent;
  color: var(--color-white);
}

.floating-control-btn.active .icon {
  background: rgba(255, 255, 255, 0.2);
}

/* Adjust back-to-top to not overlap if they are both on the right */
.back-to-top {
  right: calc(var(--space-2xl) + 180px); /* Push left to avoid floating controls */
}

@media (max-width: 768px) {
  .floating-controls {
    bottom: var(--space-lg);
    right: var(--space-lg);
    gap: var(--space-sm);
  }

  .floating-control-btn {
    padding: var(--space-sm);
    min-width: auto;
  }

  .floating-control-btn .label {
    display: none; /* Icon only on mobile to save space */
  }

  .floating-control-btn .icon {
    width: 44px;
    height: 44px;
    font-size: 1.25rem;
  }

  .back-to-top {
    right: auto;
    left: var(--space-lg); /* Move to left on mobile */
  }
}