/* ============================================================
   Premium Document Templates — 詳細ページ共通スタイル
   各テーマで上書きする CSS Variables: --bg-base / --bg-darker /
   --bg-section / --bg-card / --bg-card-hover / --text-* /
   --border-* / --theme-primary / --theme-light / --theme-accent /
   --theme-accent-light / --accent-gold / --accent-gold-bright
   ============================================================ */

.premium-detail {
  --ff: "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Yu Gothic UI", sans-serif;
  --r-sm: 4px; --r-md: 8px; --r-lg: 16px;
  font-family: var(--ff);
  background: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.65;
}
.premium-detail * { box-sizing: border-box; }
.premium-detail img { max-width: 100%; display: block; }
.premium-detail a { color: inherit; text-decoration: none; transition: opacity .2s; }
.premium-detail a:hover { opacity: .85; }
.premium-detail .pcontainer { max-width: 1240px; margin: 0 auto; padding: 0 32px; }
@media (max-width: 768px) { .premium-detail .pcontainer { padding: 0 20px; } }

/* ====== Hero ====== */
.premium-detail .p-hero {
  position: relative; width: 100%; height: 80vh;
  min-height: 600px; max-height: 820px;
  overflow: hidden; display: flex; align-items: center;
}
.premium-detail .p-hero img {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: 1;
}
.premium-detail .p-hero::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(90deg, var(--p-hero-gradient-strong) 0%, var(--p-hero-gradient-mid) 45%, var(--p-hero-gradient-weak) 100%);
  z-index: 2;
}
.premium-detail .p-hero-content { position: relative; z-index: 3; max-width: 720px; padding: 0 32px; }
.premium-detail .p-beta-badge {
  display: inline-block;
  background: rgba(201,168,118,.12);
  color: var(--accent-gold);
  border: 1px solid var(--accent-gold);
  padding: 4px 14px; border-radius: 999px;
  font-size: .72rem; font-weight: 600; letter-spacing: .15em;
  margin-bottom: 20px;
}
.premium-detail .p-hero-eyebrow {
  color: var(--theme-accent);
  font-size: .85rem; font-weight: 600;
  letter-spacing: .25em; text-transform: uppercase;
  margin-bottom: 20px;
}
.premium-detail .p-hero h1 {
  font-size: clamp(2.8rem, 5.5vw, 4.2rem);
  font-weight: 700; line-height: 1.1; letter-spacing: -.02em;
  margin: 0 0 24px;
  color: var(--text-primary);
  font-feature-settings: "palt";
}
.premium-detail .p-hero h1 .gold { color: var(--accent-gold); }
.premium-detail .p-hero-sub {
  font-size: clamp(1rem, 1.4vw, 1.2rem);
  color: var(--text-secondary);
  margin-bottom: 40px; line-height: 1.7;
}
.premium-detail .pbtn-primary {
  display: inline-block; background: var(--accent-gold); color: #1a1a1a;
  padding: 16px 40px; border-radius: var(--r-md);
  font-weight: 600; font-size: 1rem;
  transition: transform .2s, box-shadow .2s;
  box-shadow: 0 8px 24px rgba(201,168,118,.3);
}
.premium-detail .pbtn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 32px rgba(201,168,118,.5); opacity: 1; }
.premium-detail .pbtn-secondary {
  display: inline-block; border: 1px solid var(--accent-gold); color: var(--accent-gold);
  padding: 14px 36px; border-radius: var(--r-md);
  font-weight: 600; font-size: .95rem;
  transition: background .2s; margin-left: 12px;
}
.premium-detail .pbtn-secondary:hover { background: rgba(201,168,118,.1); opacity: 1; }

/* ====== Breadcrumb ====== */
.premium-detail .p-breadcrumb {
  background: var(--bg-darker); padding: 16px 0;
  border-bottom: 1px solid var(--border-soft);
  font-size: .85rem; color: var(--text-muted);
}
.premium-detail .p-breadcrumb a { color: var(--text-secondary); }
.premium-detail .p-breadcrumb a:hover { color: var(--accent-gold); opacity: 1; }
.premium-detail .p-breadcrumb .sep { margin: 0 12px; opacity: .5; }
.premium-detail .p-breadcrumb .current { color: var(--accent-gold); }

/* ====== Sections ====== */
.premium-detail .p-section { padding: 96px 0; }
@media (max-width: 768px) { .premium-detail .p-section { padding: 56px 0; } }
.premium-detail .p-section-header { text-align: center; margin-bottom: 64px; }
.premium-detail .p-eyebrow {
  color: var(--theme-accent);
  font-size: .75rem; font-weight: 600;
  letter-spacing: .25em; text-transform: uppercase;
  margin-bottom: 16px; display: block;
}
.premium-detail .p-section-title {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 700; line-height: 1.3; margin: 0 0 12px;
  color: var(--text-primary);
  text-shadow: 0 1px 2px rgba(0,0,0,.15);
  font-feature-settings: "palt";
}
.premium-detail .p-section-lead {
  color: var(--text-secondary); font-size: 1.05rem;
  max-width: 720px; margin: 0 auto; line-height: 1.8;
}

.premium-detail .p-bg-section {
  background: var(--bg-section);
  border-top: 1px solid var(--border-soft);
  border-bottom: 1px solid var(--border-soft);
}

/* ====== Intro (Palette) ====== */
.premium-detail .p-intro-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 64px; align-items: center;
}
@media (max-width: 900px) { .premium-detail .p-intro-grid { grid-template-columns: 1fr; gap: 40px; } }
.premium-detail .p-intro-text h2 {
  font-size: clamp(1.6rem, 2.8vw, 2.2rem);
  font-weight: 700; margin: 0 0 24px; line-height: 1.3;
  color: var(--text-primary);
  text-shadow: 0 1px 2px rgba(0,0,0,.15);
  font-feature-settings: "palt";
}
.premium-detail .p-intro-text p { color: var(--text-secondary); margin: 0 0 16px; line-height: 1.8; }
.premium-detail .p-intro-image {
  border-radius: var(--r-lg); overflow: hidden;
  border: 1px solid var(--border-soft);
  box-shadow: 0 24px 56px rgba(0,0,0,.4);
}

/* ====== Slides Grid ====== */
.premium-detail .p-slides-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px;
}
.premium-detail .p-slide-tile {
  background: var(--bg-card); border: 1px solid var(--border-soft);
  border-radius: var(--r-md); overflow: hidden;
  transition: transform .25s, border-color .25s;
  aspect-ratio: 16/9; position: relative;
}
.premium-detail .p-slide-tile:hover { transform: scale(1.03); border-color: var(--accent-gold); }
.premium-detail .p-slide-tile img { width: 100%; height: 100%; object-fit: cover; }
.premium-detail .p-slide-tile-label {
  position: absolute; bottom: 0; left: 0; right: 0;
  background: linear-gradient(180deg, transparent 0%, rgba(0,0,0,.85) 100%);
  color: var(--text-primary);
  padding: 16px 12px 10px; font-size: .8rem; font-weight: 500;
}

/* ====== Scene Gallery ====== */
.premium-detail .p-scene-gallery {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
@media (max-width: 1100px) { .premium-detail .p-scene-gallery { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 768px)  { .premium-detail .p-scene-gallery { grid-template-columns: repeat(2, 1fr); } }
.premium-detail .p-scene-tile {
  aspect-ratio: 16/10;
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid var(--border-soft);
  position: relative;
  background: var(--bg-card);
  transition: transform .3s, border-color .3s;
}
.premium-detail .p-scene-tile:hover {
  transform: translateY(-3px);
  border-color: var(--accent-gold);
}
.premium-detail .p-scene-tile img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .4s ease;
}
.premium-detail .p-scene-tile:hover img { transform: scale(1.06); }
.premium-detail .p-scene-tile-cap {
  position: absolute; bottom: 0; left: 0; right: 0;
  background: linear-gradient(180deg, transparent 0%, rgba(0,0,0,.85) 100%);
  color: var(--text-primary);
  padding: 18px 12px 10px;
  font-size: .78rem; font-weight: 500;
  letter-spacing: .02em;
}

/* ====== Industry / Use Cases ====== */
.premium-detail .p-industry-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px;
}
@media (max-width: 768px) { .premium-detail .p-industry-grid { grid-template-columns: 1fr; } }
.premium-detail .p-industry-card {
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-left: 3px solid var(--theme-accent);
  border-radius: var(--r-md); padding: 28px;
}
.premium-detail .p-industry-card h3 {
  color: var(--accent-gold);
  font-size: 1.15rem; font-weight: 600; margin: 0 0 12px;
}
.premium-detail .p-industry-card p {
  color: var(--text-secondary); font-size: .95rem; line-height: 1.7; margin: 0;
}

/* ====== Training CTA ====== */
.premium-detail .p-training-cta { text-align: center; }
.premium-detail .p-training-cta .p-section-title { color: var(--accent-gold-bright); }
.premium-detail .p-training-cta .p-section-lead { margin-bottom: 40px; }

/* ====== Beta CTA Card ====== */
.premium-detail .p-beta-cta { text-align: center; }
.premium-detail .p-beta-card {
  max-width: 680px; margin: 0 auto;
  background: linear-gradient(135deg, var(--bg-card) 0%, var(--theme-primary) 100%);
  border: 1px solid var(--accent-gold);
  border-radius: var(--r-lg); padding: 56px 40px;
  box-shadow: 0 24px 56px rgba(0,0,0,.4);
}
.premium-detail .p-beta-card .p-eyebrow { color: var(--accent-gold); }
.premium-detail .p-beta-card h2 { margin: 0 0 16px; }
.premium-detail .p-beta-card p { color: var(--text-secondary); margin: 0 0 32px; }