/* ── boreal_01 / styles.css ── edition page ── */

/* ── hero ── */
.hero {
  position: relative;
  width: 100%;
  height: 100svh;
  min-height: 500px;
  overflow: hidden;
  background: var(--bg);
}

/* Stack fades in on load, then steps back — individual layers animate */
.hero-stack {
  position: absolute;
  inset: 0;
  animation: stack-appear 0.5s ease both;
}

@keyframes stack-appear {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* ─────────────────────────────────────────────────
   All layers: identical sizing + position.
   cover + same background-position = aligned.
───────────────────────────────────────────────── */
.hero-layer {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
}

@media (max-width: 768px) {
  .hero-layer { background-position: left center; }
}

.hero-layer[data-layer="0"] { background-image: url('../boreal_hero/00_base.jpg'); }
.hero-layer[data-layer="1"] { background-image: url('../boreal_hero/01_fill_black.png'); }
.hero-layer[data-layer="2"] { background-image: url('../boreal_hero/02_diskshade.png'); }
.hero-layer[data-layer="3"] { background-image: url('../boreal_hero/03_shade orange.png'); }
.hero-layer[data-layer="4"] { background-image: url('../boreal_hero/04_shade white.png'); }
.hero-layer[data-layer="5"] { background-image: url('../boreal_hero/05_glow green.png'); }
.hero-layer[data-layer="6"] { background-image: url('../boreal_hero/06_glow blue.png'); }
.hero-layer[data-layer="7"] { background-image: url('../boreal_hero/07_glow orange.png'); }
.hero-layer[data-layer="8"] { background-image: url('../boreal_hero/08_white stroke.png'); }
.hero-layer[data-layer="9"] { background-image: url('../boreal_hero/09_retouch.png'); }

/* ─────────────────────────────────────────────────
   LAYER ANIMATIONS

   Rules:
   • Layer 0 (base): always opacity 1, no animation.
   • Layers 1–4, 8–9: opacity-only — no transform.
   • Layers 5–7 (glows): opacity + float — emphasized.
   • All use unique periods + negative delays so they
     start mid-cycle and never sync up identically.
───────────────────────────────────────────────── */

/* Base: always present */
.hero-layer[data-layer="0"] {
  opacity: 1;
}

/* ── fill_black ── */
@keyframes breathe-1 {
  0%, 100% { opacity: 0.45; transform: translateY(0px) scale(1); }
  50%       { opacity: 0.95; transform: translateY(-14px) scale(1.02); }
}
.hero-layer[data-layer="1"] {
  will-change: opacity, transform;
  animation: breathe-1 7300ms -2100ms ease-in-out infinite;
}

/* ── diskshade ── */
@keyframes breathe-2 {
  0%, 100% { opacity: 0.45; }
  50%       { opacity: 0.88; }
}
.hero-layer[data-layer="2"] {
  animation: breathe-2 8700ms -4300ms ease-in-out infinite;
}

/* ── shade orange ── */
@keyframes breathe-3 {
  0%, 100% { opacity: 0.22; }
  50%       { opacity: 0.82; }
}
.hero-layer[data-layer="3"] {
  animation: breathe-3 9100ms -1700ms ease-in-out infinite;
}

/* ── shade white ── */
@keyframes breathe-4 {
  0%, 100% { opacity: 0.14; transform: translateY(0px) scale(1); }
  50%       { opacity: 0.70; transform: translateY(-18px) scale(1.03); }
}
.hero-layer[data-layer="4"] {
  will-change: opacity, transform;
  animation: breathe-4 6700ms -3300ms ease-in-out infinite;
}

/* ─────────────────────────────────────────────────
   GLOWS — screen blend mode so they mix like actual
   coloured light on top of the scene. Opacity swings
   from near-off to full, float adds physical life.
───────────────────────────────────────────────── */
.hero-layer[data-layer="5"],
.hero-layer[data-layer="6"],
.hero-layer[data-layer="7"] {
  will-change: opacity, transform;
  mix-blend-mode: screen;
  filter: saturate(3.5) brightness(1.6);
}

/* ── glow green ── */
@keyframes glow-5 {
  0%, 100% { opacity: 0.08; transform: translateY(0px)   scale(1); }
  50%       { opacity: 0.55; transform: translateY(-22px) scale(1.04); }
}
.hero-layer[data-layer="5"] {
  animation: glow-5 5200ms -2600ms ease-in-out infinite;
}

/* ── glow blue ── */
@keyframes glow-6 {
  0%, 100% { opacity: 0.10; transform: translateY(0px)   scale(1); }
  50%       { opacity: 0.50; transform: translateY(-17px) scale(1.03); }
}
.hero-layer[data-layer="6"] {
  animation: glow-6 6800ms -1700ms ease-in-out infinite;
}

/* ── glow orange — fastest, most volatile ── */
@keyframes glow-7 {
  0%, 100% { opacity: 0.06; transform: translateY(0px); }
  50%       { opacity: 0.52; transform: translateY(-13px); }
}
.hero-layer[data-layer="7"] {
  animation: glow-7 4000ms -1000ms ease-in-out infinite;
}

/* ── white stroke ── */
@keyframes breathe-8 {
  0%, 100% { opacity: 0.10; }
  50%       { opacity: 0.95; }
}
.hero-layer[data-layer="8"] {
  animation: breathe-8 11300ms -5600ms ease-in-out infinite;
}

/* ── retouch ── */
@keyframes breathe-9 {
  0%, 100% { opacity: 0.20; }
  50%       { opacity: 1.00; }
}
.hero-layer[data-layer="9"] {
  animation: breathe-9 8300ms -4100ms ease-in-out infinite;
}

/* ── reduced motion: freeze all at mid-opacity, no movement ── */
@media (prefers-reduced-motion: reduce) {
  .hero-layer[data-layer="1"] { opacity: 0.78; animation: none; }
  .hero-layer[data-layer="2"] { opacity: 0.67; animation: none; }
  .hero-layer[data-layer="3"] { opacity: 0.52; animation: none; }
  .hero-layer[data-layer="4"] { opacity: 0.42; animation: none; }
  .hero-layer[data-layer="5"] { opacity: 0.54; animation: none; transform: none; }
  .hero-layer[data-layer="6"] { opacity: 0.55; animation: none; transform: none; }
  .hero-layer[data-layer="7"] { opacity: 0.52; animation: none; transform: none; }
  .hero-layer[data-layer="8"] { opacity: 0.76; animation: none; }
  .hero-layer[data-layer="9"] { opacity: 0.88; animation: none; }
  .hero-title    { opacity: 0.90; animation: none; }
  .hero-subtitle { opacity: 0.80; animation: none; }
  .hero-layer[data-layer="1"] { opacity: 0.78; animation: none; transform: none; }
  .hero-layer[data-layer="4"] { opacity: 0.42; animation: none; transform: none; }
  .hero-gradient-bottom { opacity: 1.00; animation: none; }
  .hero-scroll-hint     { animation: none; transform: translateX(-50%); }
}

/* ── text overlay ── */
.hero-text-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  padding-bottom: clamp(88px, 16vh, 200px);
  z-index: 30;
  pointer-events: none;
  gap: 14px;
}

@media (max-width: 768px) {
  .hero-text-overlay {
    align-items: flex-start;
    padding-left: var(--gutter);
  }
}

.hero-title {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: clamp(2.4rem, 9vw, 6rem);
  color: var(--white);
  letter-spacing: -0.03em;
  line-height: 1;
  text-align: center;
  animation: title-breathe 13300ms -6650ms ease-in-out infinite;
}

.hero-subtitle {
  font-family: var(--font-mono);
  font-weight: 300;
  font-size: clamp(0.8rem, 2.4vw, 2rem);
  color: var(--white);
  letter-spacing: 0.45em;
  padding-left: 0.45em; /* balance trailing letter-spacing so flex centering is optical */
  text-transform: lowercase;
  text-align: center;
  animation: subtitle-drift 10700ms -3900ms ease-in-out infinite;
}

@media (max-width: 768px) {
  .hero-title, .hero-subtitle { text-align: left; }
}

@keyframes title-breathe {
  0%, 100% { opacity: 0.68; }
  50%       { opacity: 1.00; }
}

@keyframes subtitle-drift {
  0%, 100% { opacity: 0.55; }
  50%       { opacity: 1.00; }
}

/* ── hero overlays ── */
.hero-gradient-bottom {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 70%;
  background: linear-gradient(rgba(13,13,13,0), var(--bg));
  pointer-events: none;
  z-index: 20;
  animation: gradient-breathe 19000ms -7300ms ease-in-out infinite;
}

@keyframes gradient-breathe {
  0%, 100% { opacity: 0.82; }
  50%       { opacity: 1.00; }
}

.hero-scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  font-family: var(--font-mono);
  font-size: 0.55rem;
  font-weight: 300;
  letter-spacing: 0.2em;
  color: var(--faint);
  z-index: 30;
  transition: opacity 0.4s;
  animation: scroll-bob 3700ms -1200ms ease-in-out infinite;
}

@keyframes scroll-bob {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(-6px); }
}

.hero-scroll-hint.is-hidden {
  opacity: 0;
  pointer-events: none;
  animation: none;
}

/* ── edition meta bar ── */
.edition-meta-bar {
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 300;
  letter-spacing: 0.16em;
  line-height: 2.2;
  color: var(--faint);
  text-transform: lowercase;
  padding: 40px var(--gutter);
  position: relative;
  z-index: 5;
}

/* ── meta bar link ── */
.meta-link {
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.2s;
}
.meta-link:hover { color: var(--white); }

/* ── content ── */
.edition-content {
  position: relative;
  z-index: 5;
  padding: 0 var(--gutter) 100px;
  max-width: var(--content-max);
  margin: 0 auto;
  width: 100%;
}

/* ── set section: 50/50 desktop, stacked mobile ── */
.set-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(24px, 4vw, 64px);
  align-items: start;
  padding: 48px 0;
  border-top: 1px solid var(--muted);
}

.set-section:first-child { border-top: none; }

.set-video {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
}

.set-video iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.set-info {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding-top: 4px;
}

.set-artist {
  font-family: var(--font-mono);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 500;
  letter-spacing: -0.03em;
  color: var(--white);
  line-height: 1.05;
}

.set-tags { display: flex; flex-wrap: wrap; gap: 6px; }

.set-bio {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 300;
  line-height: 1.8;
  color: var(--dim);
  max-width: 44ch;
}

.set-ig {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 300;
  letter-spacing: 0.06em;
  color: var(--faint);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: color 0.2s;
  width: fit-content;
}
.set-ig:hover { color: var(--white); }

/* ── accordion ── */
.tracklist {
  margin-top: 8px;
  border-top: 1px solid var(--muted);
}

.tracklist-toggle {
  width: 100%;
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 300;
  letter-spacing: 0.12em;
  color: var(--faint);
  text-transform: lowercase;
  transition: color 0.2s;
}
.tracklist-toggle:hover { color: var(--white); }

.tracklist-chevron {
  width: 14px; height: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.7rem;
  transition: transform 0.35s var(--ease-out-expo);
  flex-shrink: 0;
}
.tracklist-toggle[aria-expanded="true"] .tracklist-chevron {
  transform: rotate(45deg);
}

.tracklist-body {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height 0.45s var(--ease-out-expo), opacity 0.45s ease;
}
.tracklist-body.is-open { opacity: 1; }

.tracklist-item {
  display: grid;
  grid-template-columns: 28px 1fr auto;
  gap: 12px;
  align-items: baseline;
  padding: 7px 0;
  border-bottom: 1px solid rgba(245,243,240,0.06);
}

.track-num    { font-family: var(--font-mono); font-size: 0.55rem; font-weight: 300; color: var(--muted); letter-spacing: 0.08em; }
.track-title  { font-family: var(--font-mono); font-size: 0.62rem; font-weight: 300; color: var(--dim);   letter-spacing: 0.04em; }
.track-artist { font-family: var(--font-mono); font-size: 0.55rem; font-weight: 300; color: var(--faint); letter-spacing: 0.06em; text-align: right; white-space: nowrap; }

/* ── footer ── */
.edition-footer {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 32px var(--gutter) 60px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--muted);
  position: relative;
  z-index: 5;
  gap: 24px;
}

.footer-back {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  font-weight: 300;
  letter-spacing: 0.1em;
  color: var(--faint);
  text-decoration: none;
  text-transform: lowercase;
  transition: color 0.2s;
}
.footer-back:hover { color: var(--white); }

.footer-copy {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  font-weight: 300;
  letter-spacing: 0.1em;
  color: rgba(245,243,240,0.2);
  text-transform: lowercase;
}

@media (max-width: 900px) {
  .set-section { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 600px) {
  .edition-footer { flex-direction: column; align-items: flex-start; }
}