/* Talca — liminal palette: turquoise-teal against indigo night */

:root {
  --void:   #0A0C13;
  --dusk:   #141826;
  --edge:   #262c40;
  --accent: #2EC4B6;   /* turquoise-teal; 9:1 on --void, AAA for small text */
  --vapor:  #7FD3E8;
  --bone:   #E9E5DB;
  --ash:    #8B889A;

  --display: "Syne", system-ui, sans-serif;
  --body:    "Space Grotesk", system-ui, sans-serif;
  --mono:    "Space Mono", ui-monospace, monospace;

  --gutter: clamp(1.25rem, 5vw, 5rem);
  --rule: 1px solid var(--edge);
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--void);
  color: var(--bone);
  font-family: var(--body);
  font-size: clamp(1rem, 0.95rem + 0.2vw, 1.0625rem);
  line-height: 1.65;
  overflow-x: hidden;
}

a { color: inherit; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

img, iframe { max-width: 100%; }

/* ---------- shared chrome ---------- */

.masthead {
  position: relative;
  z-index: 3;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.75rem var(--gutter);
}

.masthead a { text-decoration: none; }

.wordmark {
  font-family: var(--display);
  font-weight: 800;
  font-size: 1.125rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
}

.masthead nav {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ash);
  transition: color 0.25s;
}

.masthead nav:hover { color: var(--bone); }

/* the Λ mark — borrowed from SΛNTHESIZE, used as a threshold glyph */
.lambda {
  color: var(--accent);
  font-family: var(--display);
  font-weight: 800;
}

/* ---------- hero ---------- */

.hero {
  position: relative;
  min-height: min(88vh, 780px);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 0 var(--gutter) clamp(3rem, 8vw, 6rem);
  isolation: isolate;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background-image: var(--bg);
  background-size: cover;
  background-position: center;
}

/* same slow drift as the full-page covers; overscan + clipping so no edge shows */
.hero--drift { overflow: hidden; }

.hero--drift::before {
  inset: -8%;
  animation: cover-drift 42s ease-in-out infinite alternate;
}

/* legibility scrim — keeps type readable over any future artwork or video */
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(
    to top,
    var(--void) 4%,
    rgba(10, 12, 19, 0.72) 38%,
    rgba(10, 12, 19, 0.30) 100%
  );
}

.hero-eyebrow {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 1.25rem;
}

.hero h1 {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(3.5rem, 15vw, 11rem);
  line-height: 0.84;
  letter-spacing: -0.03em;
  margin: 0;
  text-transform: uppercase;
}

/* song titles run long — sized so the longest single word (SΛNTHESIZE, INCREDIBLE)
   fits the gutter without breaking mid-word */
.hero--song h1 {
  font-size: clamp(2.25rem, 8.5vw, 7rem);
  line-height: 0.92;
}

/* ---------- full-page cover art ---------- */

/* The cover sits fixed behind the whole document and drifts slowly as a background
   layer; content blocks above it become translucent panels so it stays visible. */
/* Two stacked layers: a blurred, over-scaled copy that fills the viewport edge to
   edge, and the real cover on top. That lets a cover be shown at less than `cover`
   zoom — a tall portrait can be pulled back to show more of the frame — without
   leaving empty bars beside it. */
.cover-layer {
  position: fixed;
  inset: 0;
  z-index: -2;
  overflow: hidden;
}

.cover-layer::before {
  content: "";
  position: absolute;
  inset: -12%;
  background: var(--page-bg) center / cover;
  filter: blur(44px) saturate(0.8) brightness(0.62);
  transform: scale(1.15);
}

/* the sharp cover is a real <img> so its box equals the rendered image — that is what
   makes edge-feathering possible in pulled-back mode below */
.cover-layer img {
  position: absolute;
  inset: -8%;
  width: 116%;
  height: 116%;
  max-width: none;   /* the global img{max-width:100%} would cancel the overscan */
  object-fit: cover;
  object-position: var(--page-bg-pos, center);
  animation: cover-drift 42s ease-in-out infinite alternate;
}

/* Pulled back: the image is sized to itself and centred, so more of the frame shows.
   Its own edges are feathered into the blurred copy behind rather than cutting a
   hard vertical seam across the page. */
.page--fit .cover-layer img {
  inset: 0;
  margin: auto;
  width: auto;
  height: var(--cover-height, 118%);
  max-width: none;
  -webkit-mask-image: linear-gradient(to right, transparent, #000 12%, #000 88%, transparent);
  mask-image: linear-gradient(to right, transparent, #000 12%, #000 88%, transparent);
}

/* gentler drift for covers where a face has to stay in frame for the whole cycle */
.page--calm .cover-layer img {
  animation-name: cover-drift-calm;
  animation-duration: 60s;
}

@keyframes cover-drift-calm {
  from { transform: translate3d(0, 0, 0) scale(1.015); }
  to   { transform: translate3d(0, -1%, 0) scale(1.04); }
}

/* overscan (inset above) keeps the edges off-screen through the whole drift */
@keyframes cover-drift {
  from { transform: translate3d(0, 0, 0) scale(1.03); }
  to   { transform: translate3d(0, -3.5%, 0) scale(1.11); }
}

.page--cover::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background: linear-gradient(to bottom, rgba(10, 12, 19, 0.28), rgba(10, 12, 19, 0.52));
}

/* the hero shows the cover unobstructed — the page layer already provides it */
.page--cover .hero::before { display: none; }

/* the masthead sits above the hero, so it carries its own scrim */
.page--cover .masthead {
  background: linear-gradient(to bottom, rgba(10, 12, 19, 0.72), rgba(10, 12, 19, 0));
}

/* covers vary wildly in brightness (VDA is near-white), so the hero scrim has to hold
   bone text over a light image at the bottom and the masthead at the top */
.page--cover .hero::after {
  background: linear-gradient(
    to top,
    rgba(10, 12, 19, 0.92) 2%,
    rgba(10, 12, 19, 0.66) 26%,
    rgba(10, 12, 19, 0.12) 62%,
    rgba(10, 12, 19, 0) 80%
  );
}

/* One continuous panel for everything below the hero. Blurring each block separately
   made every boundary a tonal step — visible banding down the page. A single
   backdrop-filter surface has no internal seams, and its top edge fades in from the
   hero rather than starting on a hard line. */
/* Two layers, because a backdrop-filter cannot be feathered directly: its effect
   starts hard at the element edge, putting a sharp/blurred line across the page.
   The tint lives on .sheet and runs continuously out of the hero scrim, while the
   blur lives on a masked pseudo-element that fades in over 200px. */
.page--cover .sheet {
  position: relative;
  isolation: isolate;
  /* starts at exactly the hero scrim's closing opacity (0.92) so the two meet with
     no step, then eases to the panel tint */
  background: linear-gradient(
    to bottom,
    rgba(10, 12, 19, 0.92) 0,
    rgba(10, 12, 19, 0.62) 240px
  );
}

.page--cover .sheet::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  -webkit-mask-image: linear-gradient(to bottom, transparent 0, #000 200px);
  mask-image: linear-gradient(to bottom, transparent 0, #000 200px);
}

/* the rules between blocks are a design device, but at full strength they read as
   seams once everything shares one surface */
.page--cover .sheet .song-body,
.page--cover .sheet .video,
.page--cover .sheet .pager,
.page--cover .sheet .pager > * + * {
  border-color: rgba(38, 44, 64, 0.45);
}

.page--cover .pager > * { background: transparent; }
.page--cover .pager a:hover { background: rgba(38, 44, 64, 0.5); }

.hero-sub {
  max-width: 46ch;
  margin: 1.75rem 0 0;
  color: var(--ash);
  font-size: clamp(1.0625rem, 1rem + 0.4vw, 1.375rem);
  line-height: 1.5;
}

/* ---------- threshold list (the signature) ---------- */

.thresholds {
  border-top: var(--rule);
}

.threshold {
  position: relative;
  display: grid;
  grid-template-columns: 4.5rem 1fr auto;
  align-items: center;
  gap: clamp(1rem, 4vw, 3rem);
  padding: clamp(1.5rem, 3.5vw, 2.5rem) var(--gutter);
  border-bottom: var(--rule);
  text-decoration: none;
  isolation: isolate;
  transition: padding-left 0.4s cubic-bezier(0.2, 0.7, 0.3, 1);
}

/* the song's visual floods the row from the left on hover */
.threshold::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image: var(--bg);
  background-size: cover;
  background-position: center 62%;
  opacity: 0;
  clip-path: inset(0 100% 0 0);
  transition: opacity 0.45s, clip-path 0.55s cubic-bezier(0.2, 0.7, 0.3, 1);
}

.threshold::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(to right, rgba(10, 12, 19, 0.15), rgba(10, 12, 19, 0.78));
  opacity: 0;
  transition: opacity 0.45s;
}

.threshold:hover,
.threshold:focus-visible {
  padding-left: calc(var(--gutter) + 1rem);
}

.threshold:hover::before,
.threshold:focus-visible::before {
  opacity: 0.85;
  clip-path: inset(0 0 0 0);
}

.threshold:hover::after,
.threshold:focus-visible::after { opacity: 1; }

/* release index — a real sequence: 01 is the first release, 07 the newest */
.threshold-index {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--ash);
  transition: color 0.3s;
}

.threshold:hover .threshold-index { color: var(--accent); }

.threshold-title {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(1.75rem, 5.5vw, 3.75rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  margin: 0;
}

.threshold-feat {
  display: block;
  font-family: var(--body);
  font-weight: 400;
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ash);
  margin-top: 0.5rem;
}

.threshold-meta {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ash);
  text-align: right;
  white-space: nowrap;
}

.threshold-meta .release { display: block; }

.threshold-meta .go {
  display: block;
  margin-top: 0.4rem;
  color: var(--accent);
  opacity: 0;
  transform: translateX(-0.5rem);
  transition: opacity 0.3s, transform 0.3s;
}

.threshold:hover .go,
.threshold:focus-visible .go {
  opacity: 1;
  transform: translateX(0);
}

/* ---------- sections ---------- */

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: clamp(4rem, 9vw, 7rem) var(--gutter) clamp(1.5rem, 3vw, 2rem);
}

.section-head h2 {
  font-family: var(--mono);
  font-weight: 400;
  font-size: 0.75rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ash);
  margin: 0;
}

.section-head .count {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--edge);
}

/* ---------- song page ---------- */

.song-body {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: clamp(2rem, 6vw, 5rem);
  padding: clamp(3rem, 7vw, 5.5rem) var(--gutter);
  border-bottom: var(--rule);
}

.song-body h2 {
  font-family: var(--mono);
  font-weight: 400;
  font-size: 0.75rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ash);
  margin: 0 0 1.25rem;
}

.song-note {
  font-size: clamp(1.0625rem, 1rem + 0.5vw, 1.375rem);
  line-height: 1.6;
  margin: 0 0 1.25rem;
}

.song-note:last-child { margin-bottom: 0; }

.facts {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.8125rem;
}

.facts div {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 0;
  border-bottom: var(--rule);
}

.facts dt {
  color: var(--ash);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-size: 0.6875rem;
}

.facts dd { margin: 0; text-align: right; }

/* ---------- video ---------- */

.video {
  padding: clamp(3rem, 7vw, 5.5rem) var(--gutter);
  border-bottom: var(--rule);
}

.video h2 {
  font-family: var(--mono);
  font-weight: 400;
  font-size: 0.75rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ash);
  margin: 0 0 1.5rem;
}

.video-frame {
  position: relative;
  aspect-ratio: 16 / 9;
  border: var(--rule);
  background: var(--dusk);
  overflow: hidden;
}

/* Instagram reel embeds are portrait and don't self-size, so they get their own
   frame rather than the 16:9 one used for YouTube */
.video-frame--reel {
  aspect-ratio: auto;
  height: var(--reel-h, 640px);
  max-width: 400px;
  margin-inline: auto;
  border: 0;             /* the embed brings its own chrome — don't double-frame it */
  background: transparent;
}

.video-frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* Age-restricted videos cannot be embedded by YouTube — the player renders as a grey
   error notice. These get a poster that links out instead, so it reads as intentional. */
.video-external {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  gap: 0.9rem;
  text-align: center;
  text-decoration: none;
  color: var(--bone);
  background: var(--poster) center / cover;
  isolation: isolate;
}

.video-external::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: rgba(10, 12, 19, 0.62);
  transition: background 0.3s;
}

.video-external:hover::before { background: rgba(10, 12, 19, 0.44); }

.video-external .play {
  justify-self: center;
  width: 4.25rem;
  height: 4.25rem;
  display: grid;
  place-content: center;
  border: 1px solid var(--accent);
  border-radius: 50%;
  color: var(--accent);
  font-size: 1.05rem;
  padding-left: 0.28em;   /* optically centre the triangle */
  transition: background 0.3s, color 0.3s;
}

.video-external:hover .play {
  background: var(--accent);
  color: var(--void);
}

.video-external .label {
  font-family: var(--mono);
  font-size: 0.8125rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.video-external .note {
  font-family: var(--mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ash);
}

.video-pending {
  display: grid;
  place-content: center;
  gap: 0.75rem;
  text-align: center;
  height: 100%;
  background-image: var(--bg);
  background-size: cover;
  background-position: center;
  color: var(--ash);
  font-family: var(--mono);
  font-size: 0.8125rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.video-pending .lambda { font-size: 2rem; }

/* ---------- links ---------- */

.platforms {
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem;
  padding: 0 var(--gutter) clamp(1rem, 2vw, 1.5rem);
  list-style: none;
  margin: 0;
}

/* two link groups run back to back on song pages — the full section gap between them
   left a dead band of empty space */
.platforms + .section-head {
  padding-top: clamp(1.75rem, 3.5vw, 2.5rem);
}

.platforms a {
  position: relative;
  display: inline-block;
  padding: 0.6rem 1.15rem;
  border: 1px solid rgba(46, 196, 182, 0.24);
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--bone);
  background-image: linear-gradient(135deg, #2A2036 0%, #1A1E30 52%, #14243033 100%);
  isolation: isolate;
  transition: color 0.3s, border-color 0.3s, transform 0.3s;
}

/* accent gradient cross-fades in on hover — gradients can't transition, so layer two */
.platforms a::before {
  content: "";
  position: absolute;
  inset: -1px;
  z-index: -1;
  border-radius: inherit;
  background-image: linear-gradient(135deg, #40E0D0 0%, var(--accent) 52%, #12857E 100%);
  opacity: 0;
  transition: opacity 0.3s;
}

.platforms a:hover,
.platforms a:focus-visible {
  color: var(--void);
  border-color: transparent;
  transform: translateY(-2px);
}

.platforms a:hover::before,
.platforms a:focus-visible::before { opacity: 1; }

/* ---------- prev / next ---------- */

.pager {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-bottom: var(--rule);
}

/* target children generically — an end-of-list slot is a <span>, not an <a> */
.pager > * {
  padding: clamp(1.75rem, 4vw, 2.75rem) var(--gutter);
  text-decoration: none;
  transition: background 0.25s;
}

.pager a:hover { background: var(--dusk); }

.pager > * + * {
  border-left: var(--rule);
  text-align: right;
}

.pager span {
  display: block;
  font-family: var(--mono);
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ash);
  margin-bottom: 0.5rem;
}

.pager strong {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(1.125rem, 3vw, 1.625rem);
  text-transform: uppercase;
  letter-spacing: -0.01em;
}

.pager .empty { color: var(--edge); }

/* ---------- footer ---------- */

footer {
  padding: clamp(3rem, 7vw, 5rem) var(--gutter);
  font-family: var(--mono);
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ash);
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
}

/* ---------- responsive ---------- */

@media (max-width: 800px) {
  .song-body { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .threshold {
    grid-template-columns: 1fr auto;
    row-gap: 0.5rem;
  }
  .threshold-index { grid-column: 1 / -1; }
  .threshold-meta .go { display: none; }
  .pager { grid-template-columns: 1fr; }
  .pager > * + * { border-left: 0; border-top: var(--rule); text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}