/*
Theme Name: originalTheme
Theme URI: https://blog.raatoinfo.com
Author: raato
Author URI: https://raatoinfo.com
Description: らあとの個人開発ブログ — シンプルにゲーム感を残したビルドインパブリックブログテーマ
Version: 1.0.0
License: GNU General Public License v2 or later
Text Domain: originaltheme
*/

/* ============================================================
   CSS Variables
   ============================================================ */
:root {
  --color-bg:          #fafafa;
  --color-bg-dark:     #0d0d1a;
  --color-bg-dark-2:   #111827;
  --color-text:        #1a1a2e;
  --color-text-muted:  #6b7280;
  --color-accent:      #6c47ff;
  --color-accent-2:    #00d4aa;
  --color-border:      #e5e7eb;
  --color-code-bg:     #1e1e2e;
  --color-code-text:   #cdd6f4;

  --font-body:    'Noto Sans JP', 'Inter', sans-serif;
  --font-heading: 'Inter', 'Noto Sans JP', sans-serif;
  --font-mono:    'JetBrains Mono', 'Fira Code', 'Courier New', monospace;

  --container-max:  1100px;
  --sidebar-width:  280px;
  --gap:            1.5rem;
  --radius:         4px;
  --pixel-shadow:   4px 4px 0 rgba(108, 71, 255, 0.4);
  --pixel-shadow-dark: 4px 4px 0 #0d0d1a;
}

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

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.2s;
}
a:hover { color: var(--color-accent-2); }

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-text);
}
h1 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h2 { font-size: clamp(1.4rem, 3vw, 2rem); }
h3 { font-size: clamp(1.15rem, 2.5vw, 1.5rem); }
h4 { font-size: 1.1rem; }

p { margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }

code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: #f0eeff;
  padding: 0.15em 0.4em;
  border-radius: 3px;
  color: var(--color-accent);
}

pre {
  background: var(--color-code-bg);
  color: var(--color-code-text);
  padding: 1.5rem;
  border-radius: var(--radius);
  overflow-x: auto;
  margin-bottom: 1.5rem;
  border-left: 4px solid var(--color-accent);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.65;
}
pre code { background: none; color: inherit; padding: 0; font-size: inherit; }

blockquote {
  border-left: 4px solid var(--color-accent);
  padding: 1rem 1.5rem;
  margin: 1.5rem 0;
  background: #f5f3ff;
  border-radius: 0 var(--radius) var(--radius) 0;
  font-style: italic;
  color: var(--color-text-muted);
}

hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 2rem 0;
}

/* ============================================================
   Layout
   ============================================================ */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.site-main { padding: 3rem 0; }

.content-area {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: start;
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.4rem;
  background: var(--color-accent);
  color: #fff;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.875rem;
  font-family: var(--font-heading);
  box-shadow: var(--pixel-shadow-dark);
  transition: transform 0.15s, box-shadow 0.15s;
  cursor: pointer;
  border: none;
}
.btn:hover {
  color: #fff;
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 #0d0d1a;
}
.btn:active {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 #0d0d1a;
}

.btn--outline {
  background: transparent;
  border: 2px solid var(--color-accent);
  color: var(--color-accent);
  box-shadow: var(--pixel-shadow);
}
.btn--outline:hover {
  background: var(--color-accent);
  color: #fff;
}

/* ============================================================
   Section Titles
   ============================================================ */
.section-title {
  font-size: 1.2rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--color-text);
  letter-spacing: -0.01em;
}
.section-title::after {
  content: '';
  flex: 1;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent), transparent);
  border-radius: 1px;
}

/* ============================================================
   Site Header
   ============================================================ */
.site-header {
  background: var(--color-bg-dark);
  border-bottom: 3px solid var(--color-accent);
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 58px;
}

.site-logo a {
  color: #fff;
  font-weight: 800;
  font-size: 0.95rem;
  line-height: 1.2;
  letter-spacing: -0.02em;
  display: block;
}
.site-logo a:hover { color: var(--color-accent-2); }
.site-logo__tagline {
  font-size: 0.6rem;
  color: #4b5563;
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
}

/* Desktop nav */
.site-nav__list {
  display: none;
  gap: 1.75rem;
  align-items: center;
}
.site-nav__list a {
  color: #9ca3af;
  font-size: 0.85rem;
  font-weight: 500;
  position: relative;
  padding-bottom: 2px;
  transition: color 0.2s;
}
.site-nav__list a::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0;
  width: 0; height: 2px;
  background: var(--color-accent);
  transition: width 0.2s;
}
.site-nav__list a:hover { color: #fff; }
.site-nav__list a:hover::after { width: 100%; }

/* Hamburger */
.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: #fff;
  transition: all 0.25s;
}
.nav-toggle.is-active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-active span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-toggle.is-active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile nav drawer */
.site-nav--mobile {
  display: none;
  background: #0a0a16;
  border-top: 1px solid #1f2937;
  padding: 1rem 1.25rem;
}
.site-nav--mobile.is-active { display: block; }
.site-nav--mobile ul {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.site-nav--mobile a {
  color: #9ca3af;
  font-size: 0.9rem;
  display: block;
  padding: 0.2rem 0;
  transition: color 0.2s;
}
.site-nav--mobile a:hover { color: #fff; }

/* ============================================================
   Hero (Front Page)
   ============================================================ */
.hero {
  background: var(--color-bg-dark);
  color: #fff;
  padding: 5rem 0 4rem;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 15% 50%, rgba(108,71,255,0.18) 0%, transparent 55%),
    radial-gradient(ellipse at 85% 50%, rgba(0,212,170,0.10) 0%, transparent 55%);
  pointer-events: none;
}
/* Pixel grid overlay */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(108,71,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(108,71,255,0.03) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
}
.hero__inner { position: relative; z-index: 1; }

.hero__label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-accent-2);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.hero__label::before { content: '▶ '; color: var(--color-accent); }

.hero__title {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 1.25rem;
  color: #fff;
  letter-spacing: -0.03em;
}
.hero__title span { color: var(--color-accent); }

.hero__desc {
  font-size: clamp(0.9rem, 2vw, 1.05rem);
  color: #9ca3af;
  max-width: 540px;
  margin-bottom: 2rem;
  line-height: 1.8;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
}

.hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: #4b5563;
  border-top: 1px solid #1f2937;
  padding-top: 1.5rem;
}
.hero__stat span:first-child { color: var(--color-accent-2); margin-right: 0.4rem; }

/* ============================================================
   Projects / Progress Bars
   ============================================================ */
.projects-section {
  padding: 3.5rem 0;
  background: #fff;
  border-bottom: 1px solid var(--color-border);
}

.project-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.project-card {
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius);
  padding: 1.1rem 1.25rem;
  background: #fafafa;
  transition: transform 0.2s, box-shadow 0.2s;
}
.project-card:hover {
  transform: translateX(4px);
  box-shadow: var(--pixel-shadow);
}

.project-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.7rem;
}

.project-card__name {
  font-weight: 700;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.project-card__status {
  font-size: 0.65rem;
  font-family: var(--font-mono);
  padding: 0.2rem 0.55rem;
  background: var(--color-bg-dark);
  color: var(--color-accent-2);
  border-radius: 2px;
  letter-spacing: 0.06em;
  box-shadow: 2px 2px 0 var(--color-accent);
}

.project-card__progress-wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.project-card__bar {
  flex: 1;
  height: 12px;
  background: #1a1a2e;
  border: 2px solid #2d2d4e;
  border-radius: 2px;
  overflow: hidden;
}

.project-card__bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-2));
  border-radius: 1px;
  position: relative;
  transition: width 1.2s ease;
}
.project-card__bar-fill::after {
  content: '';
  position: absolute;
  top: 0; right: 0; bottom: 0;
  width: 3px;
  background: rgba(255,255,255,0.6);
  animation: bar-shimmer 1.8s ease-in-out infinite;
}
@keyframes bar-shimmer {
  0%, 100% { opacity: 0.4; }
  50%       { opacity: 1; }
}

.project-card__percent {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-accent);
  min-width: 36px;
  text-align: right;
}

/* ============================================================
   Post Cards (index / archive / front page)
   ============================================================ */
.posts-section { padding: 3.5rem 0; }

.post-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.post-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.4rem 1.5rem;
  display: grid;
  gap: 0.6rem;
  transition: transform 0.2s, box-shadow 0.2s;
}
.post-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 28px rgba(108,71,255,0.1);
}

.post-card__meta {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.cat-badge {
  font-size: 0.65rem;
  font-family: var(--font-mono);
  padding: 0.2rem 0.55rem;
  background: var(--color-accent);
  color: #fff;
  border-radius: 2px;
  box-shadow: 2px 2px 0 #0d0d1a;
  letter-spacing: 0.04em;
}
.cat-badge:hover { background: var(--color-accent-2); color: #fff; }

.post-date {
  font-size: 0.72rem;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
}

.post-card__title {
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.4;
}
.post-card__title a { color: var(--color-text); }
.post-card__title a:hover { color: var(--color-accent); }

.post-card__excerpt {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-card__footer {
  display: flex;
  justify-content: flex-end;
  margin-top: 0.25rem;
}

.read-more {
  font-size: 0.78rem;
  font-family: var(--font-mono);
  color: var(--color-accent);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}
.read-more::after { content: '→'; transition: transform 0.2s; }
.post-card:hover .read-more::after { transform: translateX(4px); }

/* ============================================================
   Single Post
   ============================================================ */
.single-wrap {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: start;
}

.entry-header {
  padding-bottom: 1.75rem;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 2rem;
}

.entry-categories {
  display: flex;
  gap: 0.4rem;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}

.entry-title {
  font-size: clamp(1.5rem, 4vw, 2.1rem);
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.entry-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
}
.entry-meta span { display: flex; align-items: center; gap: 0.3rem; }

/* Entry content styles */
.entry-content {
  line-height: 1.9;
  font-size: 1rem;
}
.entry-content h2 {
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color-accent);
}
.entry-content h3 {
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  color: var(--color-accent);
}
.entry-content h4 {
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}
.entry-content p  { margin-bottom: 1.4rem; }
.entry-content ul { list-style: disc;    padding-left: 1.5rem; margin-bottom: 1.4rem; }
.entry-content ol { list-style: decimal; padding-left: 1.5rem; margin-bottom: 1.4rem; }
.entry-content li { margin-bottom: 0.45rem; }
.entry-content img {
  border-radius: var(--radius);
  margin: 1.75rem 0;
  box-shadow: 0 4px 16px rgba(0,0,0,0.08);
}
.entry-content table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
}
.entry-content th,
.entry-content td {
  padding: 0.6rem 0.8rem;
  border: 1px solid var(--color-border);
  text-align: left;
}
.entry-content th {
  background: #f5f3ff;
  font-weight: 700;
}
.entry-content tr:nth-child(even) td { background: #fafafa; }

/* Tags */
.entry-tags {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}
.entry-tags .label {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
}
.tag-link {
  font-size: 0.72rem;
  padding: 0.2rem 0.6rem;
  border: 1px solid var(--color-border);
  border-radius: 2px;
  color: var(--color-text-muted);
  transition: all 0.2s;
}
.tag-link:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* Post navigation */
.post-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
}
.post-nav__item {
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: border-color 0.2s, box-shadow 0.2s;
}
.post-nav__item:hover {
  border-color: var(--color-accent);
  box-shadow: var(--pixel-shadow);
}
.post-nav__label {
  font-size: 0.65rem;
  font-family: var(--font-mono);
  color: var(--color-text-muted);
  margin-bottom: 0.35rem;
  display: block;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.post-nav__title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.4;
}
.post-nav__item--next { text-align: right; }

/* Author bio */
.author-bio {
  margin-top: 2.5rem;
  padding: 1.5rem;
  background: #f5f3ff;
  border-radius: var(--radius);
  border: 1px solid #e0d9ff;
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}
.author-bio__avatar {
  width: 64px;
  height: 64px;
  border-radius: var(--radius);
  flex-shrink: 0;
  border: 2px solid var(--color-accent);
  box-shadow: 3px 3px 0 var(--color-bg-dark);
}
.author-bio__name {
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 0.3rem;
}
.author-bio__desc {
  font-size: 0.83rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* ============================================================
   Sidebar
   ============================================================ */
.sidebar { display: flex; flex-direction: column; gap: 1.75rem; }

.widget {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.25rem;
}
.widget-title {
  font-size: 0.75rem;
  font-weight: 800;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color-accent);
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text);
}
.widget ul li {
  padding: 0.4rem 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.875rem;
}
.widget ul li:last-child { border-bottom: none; }
.widget ul a { color: var(--color-text); }
.widget ul a:hover { color: var(--color-accent); }

/* Profile widget */
.widget-profile { text-align: center; padding: 1.5rem 1.25rem; }
.widget-profile__avatar {
  width: 80px;
  height: 80px;
  border-radius: var(--radius);
  margin: 0 auto 1rem;
  border: 3px solid var(--color-accent);
  box-shadow: var(--pixel-shadow-dark);
  object-fit: cover;
}
.widget-profile__name {
  font-weight: 800;
  font-size: 1rem;
  margin-bottom: 0.4rem;
}
.widget-profile__bio {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  line-height: 1.65;
  margin-bottom: 1rem;
}
.widget-profile__links {
  display: flex;
  justify-content: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}
.widget-profile__links a {
  font-size: 0.7rem;
  font-family: var(--font-mono);
  padding: 0.3rem 0.7rem;
  border: 1px solid var(--color-accent);
  border-radius: 2px;
  color: var(--color-accent);
  transition: all 0.2s;
  box-shadow: 2px 2px 0 var(--color-bg-dark);
}
.widget-profile__links a:hover {
  background: var(--color-accent);
  color: #fff;
}

/* Search widget */
.search-form {
  display: flex;
  gap: 0.5rem;
}
.search-field {
  flex: 1;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-family: var(--font-body);
  outline: none;
  transition: border-color 0.2s;
}
.search-field:focus { border-color: var(--color-accent); }
.search-submit {
  padding: 0.5rem 0.75rem;
  background: var(--color-accent);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 0.875rem;
  box-shadow: 2px 2px 0 #0d0d1a;
  transition: transform 0.15s;
}
.search-submit:hover { transform: translate(-1px, -1px); }

/* ============================================================
   Archive Header
   ============================================================ */
.archive-header {
  padding: 2rem 0 1.75rem;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 2rem;
}
.archive-label {
  font-size: 0.68rem;
  font-family: var(--font-mono);
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}
.archive-title { font-size: clamp(1.4rem, 3vw, 2rem); font-weight: 900; }
.archive-desc  {
  margin-top: 0.5rem;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* ============================================================
   Pagination
   ============================================================ */
.pagination {
  margin-top: 2.5rem;
  display: flex;
  justify-content: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}
.page-numbers {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-text);
  transition: all 0.2s;
}
.page-numbers:hover,
.page-numbers.current {
  border-color: var(--color-accent);
  background: var(--color-accent);
  color: #fff;
  box-shadow: 2px 2px 0 #0d0d1a;
}
.page-numbers.dots { border: none; cursor: default; }
.page-numbers.dots:hover { background: none; box-shadow: none; color: var(--color-text-muted); }

/* ============================================================
   Static Page (page.php)
   ============================================================ */
.page-header {
  padding-bottom: 1.75rem;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 2rem;
}
.page-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 900;
  letter-spacing: -0.02em;
}

/* ============================================================
   Site Footer
   ============================================================ */
.site-footer {
  background: var(--color-bg-dark);
  color: #9ca3af;
  padding: 3.5rem 0 1.5rem;
  margin-top: 5rem;
  border-top: 3px solid var(--color-accent);
}
.site-footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  margin-bottom: 2.5rem;
}
.site-footer__brand-name {
  font-weight: 800;
  color: #fff;
  font-size: 0.95rem;
  margin-bottom: 0.6rem;
  letter-spacing: -0.01em;
}
.site-footer__brand-desc {
  font-size: 0.8rem;
  line-height: 1.7;
  color: #4b5563;
  max-width: 260px;
}
.site-footer__nav-title {
  font-size: 0.68rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent-2);
  margin-bottom: 0.75rem;
}
.site-footer__nav ul { display: flex; flex-direction: column; gap: 0.5rem; }
.site-footer__nav a {
  font-size: 0.83rem;
  color: #6b7280;
  transition: color 0.2s;
}
.site-footer__nav a:hover { color: #fff; }
.site-footer__bottom {
  border-top: 1px solid #1f2937;
  padding-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  align-items: center;
  text-align: center;
}
.site-footer__copy {
  font-size: 0.72rem;
  font-family: var(--font-mono);
  color: #374151;
}
.site-footer__made {
  font-size: 0.7rem;
  font-family: var(--font-mono);
  color: #374151;
}
.site-footer__made span { color: var(--color-accent); }

/* ============================================================
   404
   ============================================================ */
.error-404 {
  text-align: center;
  padding: 6rem 1rem;
  max-width: 480px;
  margin: 0 auto;
}
.error-404__code {
  font-size: clamp(5rem, 15vw, 9rem);
  font-weight: 900;
  font-family: var(--font-mono);
  line-height: 1;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1rem;
}
.error-404__title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}
.error-404__desc {
  color: var(--color-text-muted);
  margin-bottom: 2rem;
  font-size: 0.9rem;
  line-height: 1.7;
}

/* ============================================================
   Utilities
   ============================================================ */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap;
}
.text-center { text-align: center; }

/* ============================================================
   About Page
   ============================================================ */

/* Hero */
.about-hero {
  background: var(--color-bg-dark);
  padding: 5rem 0 4rem;
  position: relative;
  overflow: hidden;
  border-bottom: 3px solid var(--color-accent);
}
.about-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 60%, rgba(108,71,255,0.2) 0%, transparent 55%),
    radial-gradient(ellipse at 80% 30%, rgba(0,212,170,0.12) 0%, transparent 50%);
  pointer-events: none;
}
.about-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(108,71,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(108,71,255,0.04) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
}
.about-hero__inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}
.about-hero__profile {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}
.about-hero__avatar {
  width: 88px;
  height: 88px;
  border-radius: var(--radius);
  border: 3px solid var(--color-accent);
  box-shadow: 5px 5px 0 rgba(108,71,255,0.4);
  object-fit: cover;
  flex-shrink: 0;
  background: #1a1a2e;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
}
.about-hero__id {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}
.about-hero__label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--color-accent-2);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.about-hero__label::before { content: '▶ '; color: var(--color-accent); }
.about-hero__name {
  font-size: clamp(1.75rem, 5vw, 2.75rem);
  font-weight: 900;
  color: #fff;
  letter-spacing: -0.03em;
  line-height: 1;
}
.about-hero__role {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: #6b7280;
  letter-spacing: 0.04em;
}
.about-hero__bio {
  font-size: clamp(0.95rem, 2vw, 1.1rem);
  color: #9ca3af;
  max-width: 560px;
  line-height: 1.85;
}
.about-hero__bio strong { color: var(--color-accent-2); font-weight: 700; }
.about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.about-hero__sns {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  align-items: center;
}
.about-sns-link {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.3rem 0.75rem;
  border: 1px solid #374151;
  border-radius: 2px;
  color: #6b7280;
  transition: all 0.2s;
  box-shadow: 2px 2px 0 #0a0a16;
}
.about-sns-link:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0 #0a0a16;
}

/* About body sections */
.about-body { padding: 0 0 5rem; }

.about-section {
  padding: 3.5rem 0;
  border-bottom: 1px solid var(--color-border);
}
.about-section:last-child { border-bottom: none; }

/* Phase card */
.about-phase-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: 1.5rem;
}
.phase-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  background: #fff;
  position: relative;
  overflow: hidden;
}
.phase-card--active {
  border-color: var(--color-accent);
  box-shadow: var(--pixel-shadow);
}
.phase-card--active::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-2));
}
.phase-card__tag {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  padding: 0.2rem 0.6rem;
  border-radius: 2px;
  margin-bottom: 0.75rem;
  display: inline-block;
}
.phase-card--active .phase-card__tag {
  background: var(--color-bg-dark);
  color: var(--color-accent-2);
  box-shadow: 2px 2px 0 var(--color-accent);
}
.phase-card--next .phase-card__tag {
  background: #f3f4f6;
  color: var(--color-text-muted);
}
.phase-card__title {
  font-size: 1rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}
.phase-card__desc {
  font-size: 0.83rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}
.phase-card__cond {
  margin-top: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--color-accent);
  display: flex;
  align-items: center;
  gap: 0.3rem;
}
.phase-card--next .phase-card__cond { color: var(--color-text-muted); }

/* Games list */
.about-games {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.875rem;
  margin-top: 1.5rem;
}
.about-game-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: #fff;
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius);
  transition: transform 0.2s, box-shadow 0.2s;
}
.about-game-card:hover {
  transform: translateX(4px);
  box-shadow: var(--pixel-shadow);
}
.about-game-card__icon {
  font-size: 1.75rem;
  width: 48px;
  height: 48px;
  background: var(--color-bg-dark);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  box-shadow: 3px 3px 0 rgba(108,71,255,0.35);
}
.about-game-card__body { flex: 1; min-width: 0; }
.about-game-card__name {
  font-weight: 800;
  font-size: 0.92rem;
  margin-bottom: 0.2rem;
}
.about-game-card__status {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--color-text-muted);
}
.about-game-card__link {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  padding: 0.2rem 0.55rem;
  border: 1px solid var(--color-accent);
  border-radius: 2px;
  color: var(--color-accent);
  box-shadow: 2px 2px 0 #0d0d1a;
  transition: all 0.15s;
  white-space: nowrap;
  flex-shrink: 0;
}
.about-game-card__link:hover {
  background: var(--color-accent);
  color: #fff;
}

/* Portfolio CTA */
.about-portfolio {
  text-align: center;
  padding: 4rem 1rem;
  background: var(--color-bg-dark);
  border-radius: var(--radius);
  position: relative;
  overflow: hidden;
  margin-top: 1.5rem;
}
.about-portfolio::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 50%, rgba(108,71,255,0.2) 0%, transparent 65%);
  pointer-events: none;
}
.about-portfolio__inner { position: relative; z-index: 1; }
.about-portfolio__label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--color-accent-2);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}
.about-portfolio__title {
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 900;
  color: #fff;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}
.about-portfolio__desc {
  font-size: 0.9rem;
  color: #6b7280;
  margin-bottom: 2rem;
  line-height: 1.75;
}
.btn--large {
  padding: 0.9rem 2rem;
  font-size: 1rem;
  box-shadow: 6px 6px 0 rgba(108,71,255,0.4);
}
.btn--large:hover {
  box-shadow: 8px 8px 0 rgba(108,71,255,0.4);
}

/* Blog purpose */
.about-purpose-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.875rem;
  margin-top: 1.5rem;
}
.about-purpose-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1rem 1.25rem;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}
.about-purpose-item__num {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 900;
  color: var(--color-accent);
  line-height: 1;
  flex-shrink: 0;
  padding-top: 0.1rem;
}
.about-purpose-item__title {
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 0.25rem;
}
.about-purpose-item__desc {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* ============================================================
   Tools Page
   ============================================================ */

/* Hero */
.tools-hero {
  background: var(--color-bg-dark);
  padding: 4rem 0 3.5rem;
  position: relative;
  overflow: hidden;
  border-bottom: 3px solid var(--color-accent);
}
.tools-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 10% 50%, rgba(108,71,255,0.2) 0%, transparent 55%),
    radial-gradient(ellipse at 90% 30%, rgba(0,212,170,0.1) 0%, transparent 50%);
  pointer-events: none;
}
.tools-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(108,71,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(108,71,255,0.04) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
}
.tools-hero__inner { position: relative; z-index: 1; }
.tools-hero__label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-accent-2);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.tools-hero__label::before { content: '▶ '; color: var(--color-accent); }
.tools-hero__title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 900;
  color: #fff;
  letter-spacing: -0.03em;
  margin-bottom: 0.75rem;
}
.tools-hero__title span { color: var(--color-accent); }
.tools-hero__desc {
  font-size: 0.95rem;
  color: #6b7280;
  max-width: 500px;
  line-height: 1.75;
}
.tools-hero__counts {
  margin-top: 1.75rem;
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}
.tools-hero__count-item {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}
.tools-hero__count-num {
  font-size: 1.75rem;
  font-weight: 900;
  font-family: var(--font-mono);
  color: var(--color-accent);
  line-height: 1;
}
.tools-hero__count-label {
  font-size: 0.68rem;
  font-family: var(--font-mono);
  color: #4b5563;
  letter-spacing: 0.06em;
}

/* Body */
.tools-body { padding: 3.5rem 0 5rem; }
.tools-category { margin-bottom: 3.5rem; }
.tools-category:last-child { margin-bottom: 0; }

.tools-category__header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--color-border);
  position: relative;
}
.tools-category__header::after {
  content: '';
  position: absolute;
  bottom: -1px; left: 0;
  width: 56px; height: 2px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-2));
}
.tools-category__emoji {
  width: 34px; height: 34px;
  background: var(--color-bg-dark);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
  box-shadow: 3px 3px 0 var(--color-accent);
}
.tools-category__title {
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: -0.01em;
}
.tools-category__count {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--color-text-muted);
  margin-left: auto;
  background: #f0eeff;
  padding: 0.15rem 0.5rem;
  border-radius: 2px;
}

/* Grid */
.tools-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.875rem;
}

/* Tool card */
.tool-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.1rem 1.25rem;
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 0.6rem;
  position: relative;
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
  cursor: default;
}
.tool-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-2));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}
.tool-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 30px rgba(108,71,255,0.1), 4px 4px 0 rgba(108,71,255,0.2);
  border-color: rgba(108,71,255,0.25);
}
.tool-card:hover::before { transform: scaleX(1); }

.tool-card__header {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}
.tool-card__icon {
  width: 42px; height: 42px;
  background: var(--color-bg-dark);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
  box-shadow: 3px 3px 0 rgba(108,71,255,0.4);
  transition: transform 0.25s, box-shadow 0.25s;
}
.tool-card:hover .tool-card__icon {
  transform: rotate(-5deg) scale(1.05);
  box-shadow: 4px 4px 0 var(--color-accent);
}
.tool-card__name {
  font-size: 0.92rem;
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.01em;
  line-height: 1.25;
  margin-bottom: 0.2rem;
}
.tool-card__badge {
  font-size: 0.58rem;
  font-family: var(--font-mono);
  padding: 0.12rem 0.45rem;
  background: var(--color-bg-dark);
  color: var(--color-accent-2);
  border-radius: 2px;
  box-shadow: 1px 1px 0 var(--color-accent);
  letter-spacing: 0.04em;
  display: inline-block;
}
.tool-card__desc {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}
.tool-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.6rem;
  border-top: 1px dashed var(--color-border);
  gap: 0.5rem;
}
.tool-card__use {
  font-size: 0.67rem;
  font-family: var(--font-mono);
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 0.25rem;
  flex: 1;
  min-width: 0;
}
.tool-card__use::before {
  content: '›';
  color: var(--color-accent);
  font-size: 1rem;
  line-height: 1;
  flex-shrink: 0;
}
.tool-card__link {
  font-size: 0.65rem;
  font-family: var(--font-mono);
  color: var(--color-accent);
  font-weight: 700;
  padding: 0.2rem 0.55rem;
  border: 1px solid var(--color-accent);
  border-radius: 2px;
  transition: all 0.15s;
  box-shadow: 2px 2px 0 var(--color-bg-dark);
  white-space: nowrap;
  flex-shrink: 0;
}
.tool-card__link:hover {
  background: var(--color-accent);
  color: #fff;
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0 var(--color-bg-dark);
}

/* Affiliate note */
.tools-affiliate-note {
  margin-top: 3rem;
  padding: 1rem 1.25rem;
  background: #f5f3ff;
  border: 1px solid #e0d9ff;
  border-radius: var(--radius);
  border-left: 4px solid var(--color-accent);
  font-size: 0.78rem;
  color: var(--color-text-muted);
  line-height: 1.75;
}
.tools-affiliate-note strong {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--color-accent);
  letter-spacing: 0.06em;
  margin-bottom: 0.3rem;
}

/* ============================================================
   Responsive
   ============================================================ */
@media (min-width: 640px) {
  .project-list        { grid-template-columns: 1fr 1fr; }
  .post-list           { grid-template-columns: 1fr 1fr; }
  .tools-grid          { grid-template-columns: 1fr 1fr; }
  .about-phase-grid    { grid-template-columns: 1fr 1fr; }
  .about-games         { grid-template-columns: 1fr 1fr; }
  .about-purpose-list  { grid-template-columns: 1fr 1fr; }
  .about-hero__profile { gap: 2rem; }
}

@media (min-width: 768px) {
  .site-nav__list { display: flex; }
  .nav-toggle     { display: none; }

  .site-footer__grid  { grid-template-columns: 2fr 1fr 1fr; }
  .site-footer__bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }

  .about-hero__avatar { width: 108px; height: 108px; font-size: 3rem; }
}

@media (min-width: 1024px) {
  .container { padding: 0 2rem; }

  .content-area {
    grid-template-columns: 1fr var(--sidebar-width);
  }
  .post-list    { grid-template-columns: 1fr; }
  .project-list { grid-template-columns: repeat(3, 1fr); }
  .tools-grid   { grid-template-columns: repeat(3, 1fr); }
}