/* ============================================
   築秋雄 Official Website - style.css
   Redesigned 2026
   ============================================ */

/* ---------- CSS Variables ---------- */
:root {
  --bg-primary:    #0e0e18;
  --bg-secondary:  #17172a;
  --bg-card:       #1c1c30;
  --border:        #2e2e48;
  --accent:        #c8a84b;
  --accent-light:  #e8c86a;
  --text-primary:  #e8e8ee;
  --text-secondary:#9898b8;
  --text-muted:    #5a5a7a;
  --nav-height:    64px;
  --max-width:     900px;
  --radius:        8px;
  --font-body:     'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Noto Sans JP', Meiryo, sans-serif;
  --font-heading:  'Hiragino Mincho ProN', 'Noto Serif JP', 'Yu Mincho', Georgia, serif;
}

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

html { scroll-behavior: smooth; }

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.8;
  min-height: 100vh;
}

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

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

h1, h2, h3 {
  font-family: var(--font-heading);
  font-weight: normal;
  line-height: 1.4;
}

ul { list-style: none; }

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-height);
  background: rgba(14, 14, 24, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  display: flex;
  align-items: center;
  padding: 0 24px;
}

.nav-inner {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  color: var(--accent);
  letter-spacing: 0.1em;
  white-space: nowrap;
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}
.nav-logo:hover { color: var(--accent-light); }
.nav-logo-sub {
  font-family: var(--font-body);
  font-size: 0.55rem;
  letter-spacing: 0.18em;
  color: var(--text-muted);
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.82rem;
  padding: 6px 10px;
  border-radius: 4px;
  transition: color 0.2s, background 0.2s;
  white-space: nowrap;
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--accent);
  background: rgba(200, 168, 75, 0.1);
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--text-secondary);
  font-size: 1.5rem;
}

/* ---------- Layout ---------- */
.page-wrapper {
  padding-top: var(--nav-height);
  min-height: 100vh;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 48px 24px 80px;
}

/* ---------- Page Header ---------- */
.page-header {
  border-bottom: 1px solid var(--border);
  padding-bottom: 20px;
  margin-bottom: 40px;
}

.page-header h1 {
  font-size: 1.6rem;
  color: var(--accent);
  letter-spacing: 0.08em;
}

/* ---------- Home Hero ---------- */
.hero {
  padding: 60px 0 40px;
  text-align: center;
}

.hero-title {
  font-size: clamp(2rem, 5vw, 3rem);
  color: var(--accent);
  letter-spacing: 0.15em;
  margin-bottom: 8px;
}

.hero-subtitle {
  font-size: 0.9rem;
  color: var(--text-muted);
  letter-spacing: 0.2em;
}

.hero-divider {
  width: 60px;
  height: 1px;
  background: var(--accent);
  margin: 24px auto;
  opacity: 0.6;
}

/* ---------- Cards / Sections ---------- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 32px;
  margin-bottom: 24px;
  transition: border-color 0.2s;
}
.card:hover { border-color: rgba(200, 168, 75, 0.4); }

.card-title {
  font-size: 1rem;
  color: var(--accent);
  letter-spacing: 0.05em;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}

/* ---------- News / Home Updates ---------- */
.news-list { display: flex; flex-direction: column; gap: 12px; }

.news-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}
.news-item:last-child { border-bottom: none; }

.news-date {
  font-size: 0.78rem;
  color: var(--text-muted);
  white-space: nowrap;
  min-width: 90px;
  padding-top: 2px;
}

.news-text { font-size: 0.9rem; }

/* ---------- Video Grid (Home) ---------- */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 0;
}

.video-card {
  display: block;
  text-decoration: none;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border);
  transition: border-color 0.2s, transform 0.2s;
}

.video-card:hover {
  border-color: rgba(200,168,75,0.5);
  transform: translateY(-2px);
}

.video-thumb {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #000;
}

.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  opacity: 0.85;
  transition: opacity 0.2s;
}

.video-card:hover .video-thumb img { opacity: 1; }

.video-play {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

.video-play::after {
  content: '';
  width: 44px;
  height: 44px;
  background: rgba(0,0,0,0.55);
  border: 2px solid rgba(200,168,75,0.7);
  border-radius: 50%;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23c8a84b'%3E%3Cpath d='M8 5v14l11-7z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  background-size: 24px;
}

.video-caption {
  padding: 10px 12px;
  font-size: 0.78rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ---------- Feature Release (Home) ---------- */
.feature-release {
  display: flex;
  gap: 32px;
  align-items: flex-start;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 32px;
  margin-bottom: 32px;
}

.feature-release img {
  width: 140px;
  flex-shrink: 0;
  border-radius: 4px;
  border: 1px solid var(--border);
}

.feature-release-info { flex: 1; }

.feature-label {
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.feature-release-info h2 {
  font-size: 1.3rem;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.feature-release-info p {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* ---------- Section headings ---------- */
.section-heading {
  font-size: 0.72rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.section-heading::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* ---------- Discography ---------- */
.disc-item {
  display: flex;
  gap: 28px;
  align-items: flex-start;
  padding: 28px 0;
  border-bottom: 1px solid var(--border);
}
.disc-item:last-child { border-bottom: none; }

.disc-cover {
  width: 110px;
  flex-shrink: 0;
  border-radius: 4px;
  border: 1px solid var(--border);
}

.disc-info { flex: 1; }

.disc-label {
  font-size: 0.72rem;
  color: var(--accent);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.disc-title {
  font-size: 1.05rem;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.disc-meta {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.disc-tracklist {
  list-style: none;
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.9;
  padding-left: 0;
}

.disc-tracklist li {
  padding: 1px 0;
}

.disc-tracklist li::before {
  content: attr(data-num) '. ';
  color: var(--text-muted);
  font-size: 0.75rem;
}

/* ---------- Live Info ---------- */
.live-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 28px;
  margin-bottom: 20px;
  background: var(--bg-card);
  transition: border-color 0.2s;
}
.live-item:hover { border-color: rgba(200, 168, 75, 0.4); }

.live-date {
  font-size: 0.78rem;
  color: var(--accent);
  letter-spacing: 0.1em;
  margin-bottom: 6px;
}

.live-title {
  font-size: 1rem;
  color: var(--text-primary);
  margin-bottom: 8px;
  font-family: var(--font-heading);
}

.live-venue {
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.live-details {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.7;
  border-top: 1px solid var(--border);
  padding-top: 12px;
  margin-top: 12px;
}

.live-details p { margin-bottom: 4px; }

.live-note {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 10px;
  line-height: 1.7;
}

.archive-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}
.archive-links a {
  font-size: 0.78rem;
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 4px 10px;
  transition: color 0.2s, border-color 0.2s;
}
.archive-links a:hover {
  color: var(--accent);
  border-color: var(--accent);
}

/* ---------- Profile ---------- */
.profile-intro {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}

.profile-intro strong {
  display: block;
  font-size: 1.4rem;
  color: var(--text-primary);
  font-family: var(--font-heading);
  margin-bottom: 4px;
}

.profile-history {
  font-size: 0.88rem;
  line-height: 1.9;
  color: var(--text-secondary);
}

.profile-history p { margin-bottom: 10px; }

.profile-history .year {
  color: var(--accent);
  font-family: var(--font-heading);
  margin-right: 6px;
}

.karaoke-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-top: 32px;
  font-size: 0.85rem;
}

.karaoke-box h3 {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 10px;
}

.karaoke-box ul { color: var(--text-secondary); line-height: 2; }

/* ---------- Lyrics ---------- */
.lyrics-album-group { margin-bottom: 40px; }

.lyrics-album-title {
  font-size: 0.85rem;
  color: var(--accent);
  letter-spacing: 0.1em;
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

.lyrics-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 8px;
}

.lyrics-list li a {
  display: block;
  font-size: 0.88rem;
  color: var(--text-secondary);
  padding: 8px 12px;
  border-radius: 4px;
  border: 1px solid var(--border);
  transition: all 0.2s;
}
.lyrics-list li a:hover {
  color: var(--accent);
  background: rgba(200, 168, 75, 0.08);
  border-color: rgba(200, 168, 75, 0.3);
}

/* ---------- Lyric Page ---------- */
.lyric-header {
  text-align: center;
  padding: 48px 0 36px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 48px;
}

.lyric-title {
  font-family: var(--font-heading);
  font-size: 2rem;
  color: var(--accent);
  letter-spacing: 0.15em;
  margin-bottom: 12px;
}

.lyric-album {
  font-size: 0.82rem;
  color: var(--text-secondary);
  letter-spacing: 0.1em;
}

.lyric-body {
  max-width: 640px;
  margin: 0 auto;
  font-size: 1rem;
  line-height: 2;
  color: var(--text-primary);
}

.lyric-verse {
  margin-bottom: 2em;
}

.lyric-verse p {
  margin: 0;
  line-height: 2;
}

.lyric-chorus {
  margin-bottom: 2em;
  padding-left: 1.5em;
  border-left: 3px solid rgba(200,168,75,0.4);
}

.lyric-chorus p {
  margin: 0;
  line-height: 2;
  color: var(--text-secondary);
}

.lyric-credit {
  margin-top: 3em;
  padding-top: 1.5em;
  border-top: 1px solid var(--border);
  font-size: 0.82rem;
  color: var(--text-secondary);
  text-align: right;
}

.lyric-nav {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.lyric-nav a {
  font-size: 0.85rem;
  color: var(--accent);
  text-decoration: none;
  padding: 8px 16px;
  border: 1px solid rgba(200,168,75,0.4);
  border-radius: 4px;
  transition: all 0.2s;
}

.lyric-nav a:hover {
  background: rgba(200,168,75,0.1);
  border-color: var(--accent);
}

/* ---------- Articles ---------- */
.article-group { margin-bottom: 40px; }

.article-group-title {
  font-size: 0.72rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.article-group-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.article-item {
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
}
.article-item:last-child { border-bottom: none; }

.article-source {
  font-size: 0.78rem;
  color: var(--accent);
  margin-bottom: 4px;
}

.article-title {
  font-size: 0.95rem;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.article-body {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ---------- Links Page ---------- */
.link-group { margin-bottom: 36px; }

.link-group-title {
  font-size: 0.72rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.link-group-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.link-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 10px;
}

.link-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 18px;
  background: var(--bg-card);
  transition: border-color 0.2s;
}
.link-card:hover { border-color: rgba(200, 168, 75, 0.4); }

.link-card-name {
  font-size: 0.9rem;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.link-card-meta {
  font-size: 0.76rem;
  color: var(--text-muted);
}

.link-card-desc {
  font-size: 0.78rem;
  color: var(--text-secondary);
  margin-top: 6px;
  line-height: 1.6;
}

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--border);
  padding: 32px 24px;
  text-align: center;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.footer-nav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 4px 16px;
  margin-bottom: 16px;
}

.footer-nav a {
  color: var(--text-muted);
  font-size: 0.78rem;
}
.footer-nav a:hover { color: var(--accent); }

/* ---------- Utility ---------- */
.tag {
  display: inline-block;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  padding: 2px 8px;
  border-radius: 2px;
  background: rgba(200, 168, 75, 0.15);
  color: var(--accent);
  border: 1px solid rgba(200, 168, 75, 0.3);
}

/* ---------- Responsive ---------- */
@media (max-width: 700px) {
  .nav-links { display: none; flex-direction: column; }
  .nav-links.open { display: flex; position: absolute; top: var(--nav-height); left: 0; right: 0; background: var(--bg-secondary); border-bottom: 1px solid var(--border); padding: 12px 16px; gap: 2px; }
  .nav-links.open a { padding: 10px 12px; font-size: 0.9rem; }
  .nav-toggle { display: block; }

  .container { padding: 32px 16px 60px; }

  .feature-release { flex-direction: column; gap: 20px; }
  .feature-release img { width: 100px; }

  .disc-item { flex-direction: column; gap: 16px; }
  .disc-cover { width: 90px; }

  .lyrics-list { grid-template-columns: 1fr 1fr; }
  .link-grid { grid-template-columns: 1fr; }
}