/* ============================================================
   SIGNAL-VOID RECORDS // MEDIA FORMAT NAV STRIP
   Replaces book cover strips on all 6 landing pages.
   Each era shows its own format type across all 6 books.
   Append to: assets/book-ham-evolution.css
   ============================================================ */

.svr-index {
  padding: 3rem 0 2rem;
  text-align: center;
}

.svr-index-eyebrow {
  font-family: 'Share Tech Mono', 'VT323', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  opacity: 0.45;
  margin-bottom: 0.4rem;
}

.svr-index-title {
  font-family: 'Share Tech Mono', 'VT323', monospace;
  font-size: 0.85rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 0.25rem;
}

.svr-index-format {
  font-family: 'Share Tech Mono', 'VT323', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  opacity: 0.55;
  margin-bottom: 2.5rem;
}

/* Scrollable strip */
.svr-strip {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  padding-bottom: 0.75rem;
}

.svr-strip-inner {
  display: flex;
  gap: 1rem;
  padding: 0 1.5rem;
  min-width: max-content;
  justify-content: center;
}

/* Individual item */
.svr-item {
  flex: 0 0 auto;
  width: 170px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-decoration: none;
  opacity: 0.55;
  transition: opacity 0.25s ease, transform 0.25s ease;
  position: relative;
}

.svr-item:hover {
  opacity: 0.85;
  transform: translateY(-4px);
}

.svr-item.active {
  opacity: 1;
  transform: none;
  pointer-events: none;
}

.svr-item img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 3px;
  border: 1px solid transparent;
  transition: box-shadow 0.25s ease;
}

.svr-item-label {
  margin-top: 0.45rem;
  font-family: 'Share Tech Mono', 'VT323', monospace;
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-align: center;
  line-height: 1.5;
  color: rgba(255,255,255,0.5);
}

.svr-item.active .svr-item-label {
  color: rgba(255,255,255,0.9);
}

.svr-item-status {
  font-size: 0.55rem;
  letter-spacing: 0.08em;
  opacity: 0.5;
  display: block;
}

.svr-item.active .svr-item-status {
  opacity: 1;
}

/* Scrollbar */
.svr-strip::-webkit-scrollbar { height: 2px; }
.svr-strip::-webkit-scrollbar-track { background: transparent; }

/* ── B1 // VINYL LP // amber phosphor ── */
body.book1-page .svr-index-title,
body.book1-page .svr-index-format { color: rgba(255, 160, 30, 0.85); }
body.book1-page .svr-item.active img {
  border-color: rgba(255, 160, 30, 0.7);
  box-shadow: 0 0 18px 3px rgba(255, 160, 30, 0.35);
}
body.book1-page .svr-item.active .svr-item-status { color: rgba(255, 160, 30, 0.9); }
body.book1-page .svr-strip::-webkit-scrollbar-thumb { background: rgba(255, 160, 30, 0.3); }

/* ── B2 // CASSETTE // teal BBS ── */
body.book2-page .svr-index-title,
body.book2-page .svr-index-format { color: rgba(0, 230, 220, 0.85); }
body.book2-page .svr-item.active img {
  border-color: rgba(0, 230, 220, 0.7);
  box-shadow: 0 0 18px 3px rgba(0, 230, 220, 0.3);
}
body.book2-page .svr-item.active .svr-item-status { color: rgba(0, 230, 220, 0.9); }
body.book2-page .svr-strip::-webkit-scrollbar-thumb { background: rgba(0, 230, 220, 0.3); }

/* ── B3 // COMPACT DISC // deep cyan ── */
body.book3-page .svr-index-title,
body.book3-page .svr-index-format { color: rgba(0, 200, 255, 0.85); }
body.book3-page .svr-item.active img {
  border-color: rgba(0, 200, 255, 0.7);
  box-shadow: 0 0 18px 3px rgba(0, 200, 255, 0.3);
}
body.book3-page .svr-item.active .svr-item-status { color: rgba(0, 200, 255, 0.9); }
body.book3-page .svr-strip::-webkit-scrollbar-thumb { background: rgba(0, 200, 255, 0.3); }

/* ── B4 // USB DRIVE // Signal Empire red ── */
body.book4-page .svr-index-title,
body.book4-page .svr-index-format { color: rgba(255, 70, 40, 0.9); }
body.book4-page .svr-item.active img {
  border-color: rgba(255, 70, 40, 0.7);
  box-shadow: 0 0 18px 3px rgba(255, 70, 40, 0.35);
}
body.book4-page .svr-item.active .svr-item-status { color: rgba(255, 70, 40, 0.9); }
body.book4-page .svr-strip::-webkit-scrollbar-thumb { background: rgba(255, 70, 40, 0.3); }

/* ── B5 // MICROSD // hot pink uprising ── */
body.book5-page .svr-index-title,
body.book5-page .svr-index-format { color: rgba(255, 20, 160, 0.9); }
body.book5-page .svr-item.active img {
  border-color: rgba(255, 20, 160, 0.7);
  box-shadow: 0 0 18px 3px rgba(255, 20, 160, 0.3);
}
body.book5-page .svr-item.active .svr-item-status { color: rgba(255, 20, 160, 0.9); }
body.book5-page .svr-strip::-webkit-scrollbar-thumb { background: rgba(255, 20, 160, 0.3); }

/* ── B6 // HIMMELSPERLE // iridescent violet ── */
body.book6-page .svr-index-title,
body.book6-page .svr-index-format { color: rgba(170, 90, 255, 0.9); }
body.book6-page .svr-item.active img {
  border-color: rgba(170, 90, 255, 0.7);
  box-shadow: 0 0 22px 4px rgba(170, 90, 255, 0.4);
}
body.book6-page .svr-item.active .svr-item-status { color: rgba(170, 90, 255, 0.9); }
body.book6-page .svr-strip::-webkit-scrollbar-thumb { background: rgba(170, 90, 255, 0.3); }

/* ── Mobile ── */
@media (max-width: 700px) {
  .svr-strip-inner { justify-content: flex-start; }
  .svr-item { width: 140px; }
}