/* ============================================================
   layout.css
   ヘッダー / フッター / 共通ナビ / 博多にわかお面
   よかぺんらい - yokapenrai.com
   ============================================================ */

/* ----------------------------
   サイトヘッダー
---------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--purple-deep);
  border-bottom: 2px solid var(--gold-bright);
  padding: 0 var(--content-padding);
}

.site-header-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}

/* ロゴ */
.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.wat-arun-logo {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
}

.site-logo-text {
  font-family: var(--font-thai);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--gold-bright);
  letter-spacing: 0.04em;
}

.site-logo-text span {
  color: #fff;
  font-weight: 300;
}

/* ナビ */
.site-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
}

.site-nav a {
  font-family: var(--font-sans);
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.75);
  text-decoration: none;
  letter-spacing: 0.05em;
  transition: color 0.2s;
}

.site-nav a:hover {
  color: var(--gold-line);
}

@media (max-width: 600px) {
  .site-nav { display: none; }
}

/* ----------------------------
   サイトフッター
---------------------------- */
.site-footer {
  background: var(--purple-deep);
  color: rgba(255, 255, 255, 0.6);
  text-align: center;
  padding: 2rem var(--content-padding);
  font-size: 0.8rem;
  border-top: 2px solid var(--gold-bright);
  white-space: nowrap;
}

.footer-tagline {
  font-family: var(--font-thai);
  color: var(--gold-warm);
  font-size: 1rem;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}

/* ----------------------------
   博多にわかのお面（隠し要素・よぺろぐ入口）
---------------------------- */
.niwaka-wrap {
  text-align: center;
  padding: 1.2rem var(--content-padding) 1.5rem;
  background: var(--purple-deep);
}

.niwaka-mask {
  display: inline-block;
  width: 48px;
  height: 32px;
  opacity: 0.18;
  cursor: pointer;
  transition: opacity 0.4s, transform 0.4s;
  text-decoration: none;
}

.niwaka-mask:hover {
  opacity: 0.85;
  transform: scale(1.08);
}

.niwaka-label {
  display: block;
  margin-top: 0.3rem;
  font-size: 0.65rem;
  color: var(--gold-warm);
  letter-spacing: 0.1em;
  font-family: var(--font-thai);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
  white-space: nowrap;
}

.niwaka-mask:hover + .niwaka-label {
  opacity: 1;
}