/* VOID STRIKER 公式サイト 共通スタイル。外部フォント・CDN・画像は使用しない。 */

:root {
  --c-bg: #05050f;
  --c-bg2: #0a0b1e;
  --c-panel: #0d0f26;
  --c-panel-border: rgba(64, 240, 255, 0.28);
  --c-cyan: #40f0ff;
  --c-pink: #ff3080;
  --c-gold: #ffd040;
  --c-danger: #ff2040;
  --c-purple: #c060ff;
  --c-green: #40ff80;
  --c-orange: #ffa030;
  --c-text: #e0f8ff;
  --c-hud: #9fb0d0;
  --font: 'Courier New', monospace;
}

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

html[lang='en'] [data-lang='ja'],
html[lang='ja'] [data-lang='en'] {
  display: none !important;
}

/* ---- index.html: ゲーム下のフッターナビのみ ---- */

.site-footer {
  position: relative;
  z-index: 5;
  width: 100%;
  padding: 14px 12px 22px;
  text-align: center;
  font-family: var(--font);
  color: var(--c-hud);
  background: var(--c-bg);
  border-top: 1px solid var(--c-panel-border);
}

.site-footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px 4px;
  margin-bottom: 8px;
}

.site-footer-nav a {
  display: inline-block;
  padding: 6px 10px;
  color: var(--c-cyan);
  text-decoration: none;
  font-size: 12px;
  letter-spacing: 0.06em;
  border: 1px solid rgba(64, 240, 255, 0.35);
  border-radius: 3px;
  background: rgba(64, 240, 255, 0.05);
}

.site-footer-nav a:hover,
.site-footer-nav a:focus-visible {
  background: rgba(64, 240, 255, 0.18);
  color: #ffffff;
}

.site-footer-copy {
  font-size: 11px;
  color: #5c6a8a;
}

.site-footer-copy a {
  color: var(--c-hud);
}

/* ---- index.html: タイトル画面限定のフッター誘導ボタン ---- */

#site-nav-btn {
  display: none;
  position: fixed;
  right: 12px;
  bottom: 12px;
  z-index: 50;
  padding: 8px 12px;
  font-family: var(--font);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--c-cyan);
  background: rgba(5, 5, 15, 0.85);
  border: 1px solid rgba(64, 240, 255, 0.4);
  border-radius: 4px;
  cursor: pointer;
}

#site-nav-btn:hover,
#site-nav-btn:focus-visible {
  background: rgba(64, 240, 255, 0.18);
  color: #ffffff;
}

body.show-site-nav #site-nav-btn {
  display: block;
}

/* ---- コンテンツページ共通レイアウト（body.content-page にのみ適用） ---- */

body.content-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: var(--font);
  color: var(--c-text);
  background:
    radial-gradient(ellipse at top, rgba(64, 240, 255, 0.06) 0%, transparent 55%),
    radial-gradient(ellipse at center, var(--c-bg2) 0%, var(--c-bg) 70%, #000000 100%);
  line-height: 1.85;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(5, 5, 15, 0.92);
  border-bottom: 1px solid var(--c-panel-border);
  backdrop-filter: blur(2px);
}

.site-header-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 12px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--c-cyan);
  text-decoration: none;
  font-weight: bold;
  letter-spacing: 0.08em;
  font-size: 16px;
  text-shadow: 0 0 8px rgba(64, 240, 255, 0.7);
  white-space: nowrap;
}

.site-logo svg {
  flex-shrink: 0;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.site-nav a {
  color: var(--c-hud);
  text-decoration: none;
  font-size: 12px;
  letter-spacing: 0.06em;
  padding: 6px 10px;
  border: 1px solid transparent;
  border-radius: 3px;
}

.lang-toggle {
  color: var(--c-hud);
  font-family: var(--font);
  font-size: 12px;
  letter-spacing: 0.06em;
  padding: 6px 10px;
  border: 1px solid rgba(64, 240, 255, 0.35);
  border-radius: 3px;
  background: rgba(64, 240, 255, 0.05);
  cursor: pointer;
}

.lang-toggle:hover,
.lang-toggle:focus-visible {
  color: var(--c-cyan);
  border-color: rgba(64, 240, 255, 0.4);
  background: rgba(64, 240, 255, 0.18);
}

.site-nav a:hover,
.site-nav a:focus-visible,
.site-nav a[aria-current='page'] {
  color: var(--c-cyan);
  border-color: rgba(64, 240, 255, 0.4);
  background: rgba(64, 240, 255, 0.08);
}

.site-main {
  flex: 1 1 auto;
  width: 100%;
  max-width: 860px;
  margin: 0 auto;
  padding: 28px 20px 64px;
}

.site-main.wide {
  max-width: 980px;
}

.breadcrumb {
  font-size: 12px;
  color: var(--c-hud);
  margin-bottom: 16px;
}

.breadcrumb a {
  color: var(--c-hud);
}

.breadcrumb a:hover {
  color: var(--c-cyan);
}

.page-title {
  font-size: 26px;
  letter-spacing: 0.04em;
  color: #ffffff;
  text-shadow: 0 0 10px rgba(64, 240, 255, 0.55);
  margin-bottom: 6px;
}

.page-lede {
  color: var(--c-hud);
  font-size: 14px;
  margin-bottom: 20px;
}

.site-main h2 {
  font-size: 19px;
  color: var(--c-cyan);
  margin: 34px 0 12px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--c-panel-border);
  letter-spacing: 0.03em;
}

.site-main h3 {
  font-size: 15px;
  color: var(--c-gold);
  margin: 22px 0 8px;
  letter-spacing: 0.02em;
}

.site-main p {
  margin: 0 0 14px;
  font-size: 14.5px;
}

.site-main ul,
.site-main ol {
  margin: 0 0 16px 22px;
  font-size: 14.5px;
}

.site-main li {
  margin-bottom: 6px;
}

.site-main a {
  color: var(--c-cyan);
}

.site-main strong {
  color: #ffffff;
}

.site-main code {
  font-family: var(--font);
  background: rgba(64, 240, 255, 0.1);
  border: 1px solid rgba(64, 240, 255, 0.25);
  padding: 1px 5px;
  border-radius: 3px;
  color: var(--c-cyan);
  font-size: 0.92em;
}

.site-main blockquote {
  margin: 0 0 16px;
  padding: 10px 14px;
  border-left: 3px solid var(--c-pink);
  background: rgba(255, 48, 128, 0.06);
  color: var(--c-hud);
  font-size: 13.5px;
}

.site-main hr {
  border: none;
  border-top: 1px dashed var(--c-panel-border);
  margin: 30px 0;
}

table.data-table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 20px;
  font-size: 13px;
}

table.data-table caption {
  caption-side: top;
  text-align: left;
  color: var(--c-hud);
  font-size: 12px;
  margin-bottom: 6px;
}

table.data-table th,
table.data-table td {
  border: 1px solid var(--c-panel-border);
  padding: 7px 9px;
  text-align: left;
  vertical-align: top;
}

table.data-table th {
  background: rgba(64, 240, 255, 0.08);
  color: var(--c-cyan);
  white-space: nowrap;
}

table.data-table tr:nth-child(even) td {
  background: rgba(255, 255, 255, 0.02);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px;
  margin: 0 0 24px;
}

.card {
  background: var(--c-panel);
  border: 1px solid var(--c-panel-border);
  border-radius: 6px;
  padding: 16px;
}

.card h3 {
  margin-top: 0;
}

.card p {
  font-size: 13.5px;
  color: var(--c-hud);
  margin-bottom: 0;
}

.tag {
  display: inline-block;
  font-size: 10.5px;
  letter-spacing: 0.05em;
  padding: 2px 7px;
  border-radius: 10px;
  border: 1px solid currentColor;
  margin: 0 6px 6px 0;
}

.tag-cyan {
  color: var(--c-cyan);
}
.tag-pink {
  color: var(--c-pink);
}
.tag-gold {
  color: var(--c-gold);
}
.tag-purple {
  color: var(--c-purple);
}
.tag-green {
  color: var(--c-green);
}
.tag-orange {
  color: var(--c-orange);
}

.stat-bar {
  display: inline-flex;
  gap: 2px;
  vertical-align: middle;
}

.stat-bar span {
  width: 9px;
  height: 12px;
  background: rgba(255, 255, 255, 0.12);
  display: inline-block;
}

.stat-bar span.on {
  background: var(--c-gold);
  box-shadow: 0 0 4px rgba(255, 208, 64, 0.8);
}

.kbd {
  display: inline-block;
  font-family: var(--font);
  font-size: 11.5px;
  padding: 1px 7px;
  border: 1px solid var(--c-hud);
  border-bottom-width: 2px;
  border-radius: 3px;
  color: var(--c-text);
  background: rgba(255, 255, 255, 0.04);
}

.divider-svg {
  display: block;
  width: 100%;
  height: 14px;
  margin: 26px 0;
  opacity: 0.6;
}

.notice-box {
  border: 1px solid rgba(255, 208, 64, 0.4);
  background: rgba(255, 208, 64, 0.06);
  color: var(--c-gold);
  padding: 12px 14px;
  border-radius: 5px;
  font-size: 13px;
  margin-bottom: 20px;
}

.notice-box.danger {
  border-color: rgba(255, 32, 64, 0.45);
  background: rgba(255, 32, 64, 0.07);
  color: #ff8fa0;
}

.post-meta {
  color: var(--c-hud);
  font-size: 12px;
  margin-bottom: 20px;
}

.post-list {
  list-style: none;
  margin: 0 0 20px;
}

.post-list li {
  border-bottom: 1px solid var(--c-panel-border);
  padding: 16px 0;
}

.post-list a {
  color: #ffffff;
  text-decoration: none;
  font-size: 16px;
}

.post-list a:hover {
  color: var(--c-cyan);
}

.post-list .post-excerpt {
  color: var(--c-hud);
  font-size: 13px;
  margin-top: 6px;
}

.guide-index-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
  margin: 0 0 26px;
}

.guide-index-grid a {
  display: block;
  padding: 14px 16px;
  background: var(--c-panel);
  border: 1px solid var(--c-panel-border);
  border-radius: 6px;
  text-decoration: none;
  color: var(--c-text);
}

.guide-index-grid a:hover {
  border-color: var(--c-cyan);
  box-shadow: 0 0 10px rgba(64, 240, 255, 0.25);
}

.guide-index-grid .g-title {
  color: var(--c-cyan);
  font-size: 14px;
  margin-bottom: 4px;
  display: block;
}

.guide-index-grid .g-desc {
  color: var(--c-hud);
  font-size: 12px;
  display: block;
}

.site-footer-page {
  border-top: 1px solid var(--c-panel-border);
  padding: 24px 20px 40px;
  text-align: center;
}

.site-footer-page nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 4px 6px;
  margin-bottom: 12px;
}

.site-footer-page nav a {
  color: var(--c-hud);
  text-decoration: none;
  font-size: 12px;
  padding: 4px 8px;
}

.site-footer-page nav a:hover {
  color: var(--c-cyan);
}

.site-footer-page p {
  color: #5c6a8a;
  font-size: 11px;
}

.site-footer-page a.gh-link {
  color: #5c6a8a;
}

@media (max-width: 640px) {
  .site-header-inner {
    flex-direction: column;
    align-items: flex-start;
  }
  .site-nav {
    width: 100%;
  }
  .site-nav a {
    padding: 6px 8px;
    font-size: 11.5px;
  }
  .lang-toggle {
    padding: 6px 8px;
    font-size: 11.5px;
  }
  .page-title {
    font-size: 21px;
  }
  .site-main {
    padding: 20px 14px 48px;
  }
  table.data-table {
    font-size: 11.5px;
  }
  table.data-table th,
  table.data-table td {
    padding: 5px 6px;
  }
}