/* ─────────────────────────────────────────────────────────────────────────────
   TRACK PAGE — /tracks/<slug>
   Mirrors the homepage design system (tokens, nav, footer). Nothing new is
   invented here; the values are lifted from index.html so the pages match.
   ───────────────────────────────────────────────────────────────────────── */

:root {
  --black: #000000;
  --near-black: #050505;
  --cyan: #00c8e8;
  --cyan-dim: rgba(0,200,232,0.5);
  --cyan-glow: rgba(0,200,232,0.12);
  --red: #e83020;
  --white: #f2f2f2;
  --grey: rgba(242,242,242,0.45);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body.track-page {
  background: var(--black);
  color: var(--white);
  font-family: 'IBM Plex Mono', monospace;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}
body.track-page::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  background: repeating-linear-gradient(0deg, transparent, transparent 3px, rgba(0,0,0,0.05) 3px, rgba(0,0,0,0.05) 4px);
}

/* ── NAV ── */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(0,0,0,0.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0,200,232,0.16);
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
}
.site-nav .nav-home { padding: 0; display: flex; align-items: center; }
.site-nav .nav-logo {
  height: 24px;
  margin-right: 1rem;
  filter: drop-shadow(0 0 6px var(--cyan-dim));
}
.site-nav a {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 0.95rem;
  letter-spacing: 0.14em;
  color: var(--grey);
  text-decoration: none;
  padding: 1rem 1.2rem;
  transition: all 0.2s;
  border-bottom: 2px solid transparent;
}
.site-nav a:hover { color: var(--cyan); border-bottom-color: var(--cyan); }
.site-nav .nav-home:hover { border-bottom-color: transparent; }

/* ── PAGE SHELL ── */
main.song {
  flex: 1;
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  padding: 3rem 1.5rem 6rem;
}

/* ── BREADCRUMB ── */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.62rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 2.5rem;
}
.breadcrumb a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}
.breadcrumb a:hover { border-bottom-color: var(--cyan); }
.breadcrumb .crumb-sep { color: var(--cyan-dim); }
.breadcrumb [aria-current="page"] { color: rgba(242,242,242,0.55); }

/* ── HERO ── */
.song-hero { margin-bottom: 3.5rem; }
.song-num {
  font-size: 0.62rem;
  letter-spacing: 0.5em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 0.9rem;
}
.song-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(2.6rem, 8vw, 4.2rem);
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--white);
  text-shadow: 0 0 40px var(--cyan-dim);
  margin-bottom: 1.5rem;
}
.song-dur {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  color: var(--cyan);
  vertical-align: middle;
  margin-left: 0.7rem;
  white-space: nowrap;
}
.song-embed {
  border: 1px solid rgba(0,200,232,0.16);
  box-shadow: 0 0 40px rgba(0,200,232,0.1);
  display: block;
}
.song-embed-note {
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--grey);
  margin-top: 0.9rem;
}
.song-embed-note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}
.song-embed-note a:hover { border-bottom-color: var(--cyan); }

/* ── LYRICS BLOCK ── */
.song-lyrics {
  padding-top: 2.5rem;
  border-top: 1px solid rgba(255,255,255,0.07);
  font-size: 0.92rem;
  line-height: 1.75;
}

/* ── PREV / NEXT ── */
.prev-next {
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.07);
}
.pn-link {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  text-decoration: none;
  max-width: 46%;
  transition: opacity 0.2s;
}
.pn-link:hover { opacity: 0.75; }
.pn-next { text-align: right; align-items: flex-end; }
.pn-label {
  font-size: 0.58rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--cyan-dim);
}
.pn-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.15rem;
  letter-spacing: 0.08em;
  color: var(--white);
}
.pn-spacer { display: block; }

/* ── BACK LINK ── */
.back-to-album { margin-top: 2.5rem; text-align: center; }
.back-to-album a {
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--grey);
  text-decoration: none;
  transition: color 0.2s;
}
.back-to-album a:hover { color: var(--cyan); }

/* ── FOOTER ── */
footer {
  text-align: center;
  padding: 4rem 1.5rem;
  border-top: 1px solid rgba(255,255,255,0.05);
  position: relative;
  overflow: hidden;
}
.footer-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/band-portrait.jpeg');
  background-size: cover;
  background-position: center;
  opacity: 0.08;
  filter: grayscale(1);
}
.footer-content { position: relative; z-index: 2; }
.footer-logo-img {
  width: 70px;
  margin: 0 auto 1rem;
  display: block;
  filter: drop-shadow(0 0 15px var(--cyan-dim));
}
.footer-mark {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.3rem;
  letter-spacing: 0.22em;
  color: var(--cyan);
  text-shadow: 0 0 20px var(--cyan-dim);
  margin-bottom: 1rem;
}
footer p {
  font-size: 0.62rem;
  letter-spacing: 0.22em;
  color: rgba(255,255,255,0.25);
  text-transform: uppercase;
  margin: 0.4rem auto 0;
}

/* ── RESPONSIVE ── */
@media (max-width: 760px) {
  .site-nav { padding: 0.3rem; flex-wrap: wrap; }
  .site-nav .nav-logo { height: 20px; margin-right: 0.5rem; }
  .site-nav a { padding: 0.75rem 0.6rem; font-size: 0.78rem; }
  main.song { padding-top: 2rem; }
  .prev-next { flex-direction: column; }
  .pn-link { max-width: 100%; }
  .pn-next { text-align: left; align-items: flex-start; }
  .pn-spacer { display: none; }
}