:root {
  color-scheme: light only;
  --bg: #fdf8f5;
  --text-main: #2a1f1a;
  --text-sub: #7a6560;
  --accent-pink: #e8829a;
  --tag-event-bg: #fce8ee;
  --tag-event-text: #d4607a;
  --tag-news-bg: #e8f0fd;
  --tag-news-text: #5b7fc4;
  --tag-release-bg: #fef3d8;
  --tag-release-text: #c48a2a;
  --border: #ecddd7;
}

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

html, body {
  background-color: #fdf8f5;
  color: #2a1f1a;
}

body {
  font-family: 'Noto Serif JP', serif;
  min-height: 100vh;
}

@media (prefers-color-scheme: dark) {
  html, body { background-color: #fdf8f5 !important; color: #2a1f1a !important; }
  .site-nav  { background-color: rgba(253,248,245,0.96) !important; }
  .hero      { background: linear-gradient(135deg, #f5d5df 0%, #dde6f7 50%, #fae8d0 100%) !important; }
  .post-nav-item, .info-box { background-color: #ffffff !important; }
  .news-card { background-color: transparent !important; }
  footer     { background-color: #fdf8f5 !important; }
  * { color: inherit !important; }
}

/* ===== NAV ===== */
.site-nav {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 100;
  background-color: rgba(253, 248, 245, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid #ecddd7;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem 0 0.5rem;
  height: 64px;
}

.nav-logo {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1rem;
  letter-spacing: 0.08em;
  color: #2a1f1a;
  text-decoration: none;
}

.nav-logo:hover { color: #e8829a; }

.nav-logo-img {
  height: 28px;
  width: auto;
  display: block;
  filter: brightness(0) saturate(100%) invert(27%) sepia(20%) saturate(800%) hue-rotate(280deg) brightness(80%);
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 1.5rem;
}

.nav-links a {
  font-family: 'Cormorant Garamond', serif;
  font-size: 0.82rem;
  letter-spacing: 0.15em;
  color: #7a6560;
  text-decoration: none;
  transition: color 0.2s;
}

.nav-links a:hover { color: #e8829a; }

/* ===== HERO ===== */
.hero {
  margin-top: 64px;
  height: 160px;
  background: linear-gradient(135deg, #f5d5df 0%, #dde6f7 50%, #fae8d0 100%);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  padding: 0 1.5rem 1.5rem;
}

.hero-stars span {
  position: absolute;
  border-radius: 50%;
  background: rgba(255,255,255,0.8);
  animation: twinkle 3s ease-in-out infinite;
}
.hero-stars span:nth-child(1){width:3px;height:3px;top:20%;left:10%;animation-delay:0s}
.hero-stars span:nth-child(2){width:2px;height:2px;top:40%;left:28%;animation-delay:.5s}
.hero-stars span:nth-child(3){width:4px;height:4px;top:15%;left:62%;animation-delay:1s}
.hero-stars span:nth-child(4){width:2px;height:2px;top:60%;left:80%;animation-delay:1.5s}
.hero-stars span:nth-child(5){width:3px;height:3px;top:30%;left:90%;animation-delay:.8s}

@keyframes twinkle {
  0%,100%{opacity:.3;transform:scale(1)}
  50%{opacity:1;transform:scale(1.5)}
}

.hero-label { position: relative; z-index: 1; }

.hero-label-sub {
  font-family: 'Cormorant Garamond', serif;
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: #e8829a;
  margin-bottom: 0.3rem;
}

.hero-label h1 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 2.6rem;
  font-weight: 300;
  letter-spacing: 0.25em;
  color: #2a1f1a;
}

/* ===== CONTAINER ===== */
.container {
  max-width: 680px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 6rem;
}

/* ===== NEWS LIST ===== */
.news-list-page {
  max-width: 780px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 6rem;
}

.news-filter {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.filter-btn {
  padding: 0.3rem 1rem;
  border-radius: 99px;
  border: 1px solid #ecddd7;
  background: white;
  font-family: 'Noto Serif JP', serif;
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  color: #7a6560;
  cursor: pointer;
  transition: all 0.2s;
}

.filter-btn:hover,
.filter-btn.active {
  background: #e8829a;
  border-color: #e8829a;
  color: white;
}

.news-card {
  display: grid;
  grid-template-columns: 110px 80px 1fr;
  gap: 1rem;
  align-items: start;
  padding: 1.4rem 0;
  border-bottom: 1px solid #ecddd7;
  text-decoration: none;
  color: #2a1f1a;
  transition: color 0.2s;
}

.news-card:hover { color: #e8829a; }

.news-card-date {
  font-family: 'Cormorant Garamond', serif;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  color: #7a6560;
  padding-top: 2px;
}

.news-card-title {
  font-size: 0.9rem;
  line-height: 1.7;
}

/* ===== BREADCRUMB ===== */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: #7a6560;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  animation: fadeUp 0.5s ease both;
}

.breadcrumb a {
  color: #7a6560;
  text-decoration: none;
}

.breadcrumb a:hover { color: #e8829a; }

/* ===== ARTICLE ===== */
.article { animation: fadeUp 0.6s ease 0.1s both; }

.article-meta {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 1rem;
}

.article-date {
  font-family: 'Cormorant Garamond', serif;
  font-size: 0.88rem;
  letter-spacing: 0.12em;
  color: #7a6560;
}

.tag {
  display: inline-block;
  padding: 0.18rem 0.8rem;
  border-radius: 99px;
  font-size: 0.72rem;
  letter-spacing: 0.05em;
}

.tag-event   { background-color: #fce8ee; color: #d4607a; }
.tag-news    { background-color: #e8f0fd; color: #5b7fc4; }
.tag-release { background-color: #fef3d8; color: #c48a2a; }
.tag-info    { background-color: #e8f4f8; color: #4080a0; }

.article-title {
  font-size: 1.4rem;
  font-weight: 700;
  line-height: 1.7;
  letter-spacing: 0.04em;
  color: #2a1f1a;
  margin-bottom: 1.8rem;
}

.article-divider {
  width: 100%;
  height: 1px;
  background: linear-gradient(to right, #e8829a, transparent);
  margin-bottom: 1.8rem;
}

.article-body {
  line-height: 2;
  font-size: 0.93rem;
  letter-spacing: 0.04em;
  color: #2a1f1a;
}

.article-body p + p { margin-top: 1.2em; }

/* ===== INFO BOX ===== */
.info-box {
  margin: 1.8rem 0;
  border: 1px solid #ecddd7;
  border-radius: 12px;
  overflow: hidden;
  background-color: #ffffff;
}

.info-box-header {
  background: linear-gradient(135deg, #fce8ee, #fff5f8);
  padding: 0.7rem 1.2rem;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  color: #d4607a;
  font-family: 'Cormorant Garamond', serif;
  border-bottom: 1px solid #ecddd7;
}

.info-box-body { padding: 0.4rem 1.2rem; }

.info-row {
  display: grid;
  grid-template-columns: 5.5em 1fr;
  gap: 0 1rem;
  padding: 0.65rem 0;
  border-bottom: 1px solid #f5ede9;
}

.info-row:last-child { border-bottom: none; }

.info-label {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: #7a6560;
  padding-top: 0.1em;
}

.info-value {
  font-size: 0.88rem;
  color: #2a1f1a;
}

/* ===== SHARE ===== */
.share-section {
  margin-top: 2.5rem;
  padding-top: 1.8rem;
  border-top: 1px solid #ecddd7;
}

.share-label {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: #7a6560;
  font-family: 'Cormorant Garamond', serif;
  margin-bottom: 0.8rem;
}

.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1.2rem;
  background-color: #e8829a;
  color: #ffffff;
  border-radius: 99px;
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-decoration: none;
  transition: background-color 0.2s;
}

.share-btn:hover { background-color: #d4607a; }

/* ===== POST NAV ===== */
.post-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
  margin-top: 3rem;
  animation: fadeUp 0.6s ease 0.2s both;
}

.post-nav-item {
  display: flex;
  flex-direction: column;
  padding: 1rem;
  border: 1px solid #ecddd7;
  border-radius: 12px;
  text-decoration: none;
  background-color: #ffffff;
  transition: all 0.2s;
  gap: 0.4rem;
}

.post-nav-item:hover {
  border-color: #e8829a;
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(232,130,154,0.12);
}

.post-nav-item.next { align-items: flex-end; text-align: right; }

.post-nav-dir {
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: #e8829a;
  font-family: 'Cormorant Garamond', serif;
}

.post-nav-title {
  font-size: 0.78rem;
  line-height: 1.5;
  color: #2a1f1a;
}

/* ===== BACK ===== */
.back-link {
  display: flex;
  justify-content: center;
  margin-top: 2.5rem;
}

.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.76rem;
  letter-spacing: 0.15em;
  color: #7a6560;
  font-family: 'Cormorant Garamond', serif;
  text-decoration: none;
  border-bottom: 1px solid #ecddd7;
  padding-bottom: 0.2rem;
  transition: all 0.2s;
}

.back-btn:hover { color: #e8829a; border-color: #e8829a; }

/* ===== FOOTER ===== */
footer {
  text-align: center;
  padding: 2rem;
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: #7a6560;
  font-family: 'Cormorant Garamond', serif;
  border-top: 1px solid #ecddd7;
  background-color: #fdf8f5;
}

/* ===== ANIMATION ===== */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 600px) {
  .nav-links { gap: 0.9rem; }
  .nav-links a { font-size: 0.68rem; }
  .hero { height: 130px; }
  .hero-label h1 { font-size: 2rem; }
  .article-title { font-size: 1.15rem; }
  .post-nav { grid-template-columns: 1fr; }
  .post-nav-item.next { align-items: flex-start; text-align: left; }
  .news-card {
    grid-template-columns: 1fr;
    gap: 0.4rem;
  }
}