/* A4 The Mix: career timeline beatmatched with a two-deck mixer. Owned by Agent 5. */

.mix {
  --mix-a: var(--accent);
  --mix-b: var(--accent-2);
  --mix-pos: 0;           /* 0 to 1 within the current pair, set by js/mix.js */
  --mix-play: 0;          /* 0 to 1 across the whole set */
}

.mix__intro { max-width: var(--measure); margin-block: 0 var(--space-6); }
.mix__intro p { margin: 0 0 var(--space-2); color: var(--text-muted); }
.mix__intro a { color: var(--accent-2); }

.mix__layout {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: minmax(0, 1fr);
  align-items: start;
}

/* ---------- Timeline ---------- */
.mix__list {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
  min-width: 0;
}

/* The "cable" that runs down the set */
.mix__list::before {
  content: "";
  position: absolute;
  inset-block: 0.5rem 0.5rem;
  inset-inline-start: 0.6rem;
  width: 2px;
  background: linear-gradient(var(--mix-a), var(--accent-3), var(--mix-b));
  opacity: .5;
  border-radius: 2px;
}

.mix__entry {
  position: relative;
  padding-inline-start: 2.25rem;
  scroll-margin-top: 6rem;
}
.mix__entry::before {
  /* The cue dot on the cable */
  content: "";
  position: absolute;
  inset-inline-start: 0.1rem;
  top: 1.6rem;
  width: 1.05rem;
  height: 1.05rem;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--line);
  box-sizing: border-box;
}

.mix__card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: var(--space-5);
  max-width: var(--measure);
  overflow-wrap: break-word;
  min-width: 0;
}

.mix__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2) var(--space-3);
  margin: 0 0 var(--space-3);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: .02em;
  color: var(--text-muted);
}
.mix__badge {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.15rem 0.6rem;
  color: var(--text);
}
.mix__bpm { color: var(--accent-3); }
.mix__live {
  display: none;
  align-items: center;
  gap: 0.4rem;
  border-radius: 999px;
  padding: 0.15rem 0.6rem;
  background: var(--accent);
  color: var(--on-accent);
  font-weight: 600;
}
.mix__live::before {
  content: "";
  width: 0.5rem; height: 0.5rem;
  border-radius: 50%;
  background: currentColor;
}

.mix__role {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 1.05rem + 0.8vw, 1.6rem);
  line-height: 1.2;
  margin: 0 0 var(--space-2);
  color: var(--text);
}
.mix__where {
  margin: 0 0 var(--space-4);
  color: var(--text-muted);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1) var(--space-2);
  align-items: baseline;
}
.mix__label { font-weight: 600; color: var(--text); }
.mix__sep { color: var(--line); }

.mix__points {
  margin: 0;
  padding-inline-start: 1.15rem;
  display: grid;
  gap: var(--space-2);
}
.mix__points li { padding-inline-start: 0.2rem; }
.mix__points li::marker { color: var(--accent-3); }

.mix__transition {
  max-width: var(--measure);
  margin: var(--space-4) 0 var(--space-6);
  padding: var(--space-3) var(--space-4);
  border-inline-start: 3px dashed var(--accent-3);
  color: var(--text-muted);
  font-style: italic;
}
.mix__transition-tag {
  display: inline-block;
  margin-inline-end: var(--space-2);
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--accent-3);
}
.mix__transition a { color: var(--accent-2); font-style: normal; }
.mix__transition--out { margin-bottom: 0; }

/* Active entry */
.mix__entry.is-playing .mix__card {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent), var(--shadow);
}
.mix__entry.is-playing::before {
  background: var(--accent);
  border-color: var(--accent);
}
.mix__entry.is-playing .mix__live { display: inline-flex; }
.mix__entry.is-cued::before { border-color: var(--accent-2); }

/* ---------- Mixer: brushed metal and glass console ---------- */
.mix__mixer {
  position: relative;
  border: 1px solid var(--glass-border, var(--line));
  border-radius: var(--radius);
  padding: var(--space-4);
  min-width: 0;
  /* Solid strong glass behind all text so contrast holds; hairline brushing on top */
  background:
    repeating-linear-gradient(90deg, rgb(255 255 255 / .018) 0 1px, transparent 1px 3px),
    linear-gradient(180deg, rgb(255 255 255 / .07), transparent 40%),
    var(--glass-fill-strong, var(--surface));
  box-shadow: var(--glass-highlight, none), var(--glass-shadow, var(--shadow));
}
@supports ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .mix__mixer {
    -webkit-backdrop-filter: blur(var(--glass-blur, 18px)) saturate(1.3);
    backdrop-filter: blur(var(--glass-blur, 18px)) saturate(1.3);
  }
}
@supports (color: oklch(0 0 0)) {
  .mix__mixer {
    background:
      repeating-linear-gradient(90deg, rgb(255 255 255 / .018) 0 1px, transparent 1px 3px),
      linear-gradient(180deg in oklch, oklch(1 0 0 / .08), oklch(0.6 0.08 var(--track-hue, 200) / .05) 45%, transparent),
      var(--glass-fill-strong, var(--surface));
  }
}
.mix__mixer-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin: calc(var(--space-2) * -1) calc(var(--space-2) * -1) var(--space-3);
  padding: var(--space-2);
  border-radius: var(--radius-sm);
  /* Specular bezel strip */
  background: linear-gradient(180deg, rgb(255 255 255 / .06), rgb(0 0 0 / .18));
  box-shadow: inset 0 1px 0 rgb(255 255 255 / .16), inset 0 -1px 0 rgb(0 0 0 / .4);
}
.mix__mixer-title {
  margin: 0;
  padding-inline-start: var(--space-2);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.mix__spin-btn {
  min-height: 2.75rem;
  padding: 0 var(--space-4);
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--text);
  font: inherit;
  font-size: 0.875rem;
  cursor: pointer;
  box-shadow: inset 0 1px 0 rgb(255 255 255 / .12);
}
.mix__spin-btn:hover { border-color: var(--accent-2); }
.mix__spin-btn:focus-visible,
.mix__range:focus-visible,
.mix__intro a:focus-visible,
.mix__transition a:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 3px;
}
.mix__spin-btn[hidden] { display: none; }

.mix__decks {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: start;
  gap: var(--space-3);
}
.mix__deck { min-width: 0; text-align: center; }

/* Platter */
.mix__platter-wrap {
  position: relative;
  width: 100%;
  max-width: 9.5rem;
  aspect-ratio: 1;
  margin-inline: auto;
  border-radius: 50%;
  transition: box-shadow var(--dur-slow) var(--ease-out);
}
.mix__platter { display: block; width: 100%; height: 100%; overflow: visible; }
.mix__platter-base { fill: var(--bg-deep); stroke: var(--line); stroke-width: 1; }
.mix__vinyl { fill: var(--vinyl); }
.mix__groove { fill: none; stroke: var(--vinyl-groove); stroke-width: .8; }
.mix__deck--a .mix__label-disc { fill: var(--mix-a); }
.mix__deck--b .mix__label-disc { fill: var(--mix-b); }
.mix__label-text { fill: var(--on-accent); font: 700 11px var(--font-display); }
.mix__label-num { fill: var(--on-accent); font: 600 7px var(--font-mono); }
.mix__notch { fill: var(--text-muted); opacity: .7; }
.mix__spindle { fill: var(--text); }
.mix__disc { transform-origin: 50px 50px; transform-box: view-box; }

/* Houdini grooves when the paint API is available. SVG grooves remain the fallback. */
@supports (background: paint(grooves)) {
  .mix--paint .mix__platter-wrap {
    background-color: var(--vinyl);
    background-image: paint(grooves);
    border: 3px solid var(--line);
    box-sizing: border-box;
    --groove-color: var(--vinyl-groove);
    --groove-gap: 3;
    --sheen-angle: 35;
    --sheen-color: rgb(255 255 255 / .22);
  }
  .mix--paint .mix__deck--b .mix__platter-wrap { --sheen-angle: 215; }
  .mix--paint :is(.mix__platter-base, .mix__vinyl, .mix__groove) { display: none; }
}

/* Deck glow follows the ambient track tint */
.mix__deck.is-dominant .mix__platter-wrap {
  box-shadow: 0 0 1.75rem -0.25rem var(--tint-strong, var(--accent-2));
}

/* Per deck mini waveform */
.mix__deck-wave {
  height: 1rem;
  margin: var(--space-2) auto 0;
  max-width: 9.5rem;
  border-radius: 3px;
  background: repeating-linear-gradient(90deg, var(--vinyl-groove) 0 2px, transparent 2px 4px);
  --wave-bars: 34;
  --wave-progress: 0;
}
.mix__deck--a .mix__deck-wave { --wave-color: var(--mix-a); }
.mix__deck--b .mix__deck-wave { --wave-color: var(--mix-b); }
@supports (background: paint(waveform)) {
  .mix--paint .mix__deck-wave { background: paint(waveform); }
}

.mix__deck-name {
  margin: var(--space-2) 0 0;
  font-size: 0.8rem;
  line-height: 1.3;
  color: var(--text);
  overflow-wrap: anywhere;
}
.mix__deck--a .mix__deck-name { view-transition-name: mix-deck-a; }
.mix__deck--b .mix__deck-name { view-transition-name: mix-deck-b; }
.mix__deck-letter {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-muted);
}
/* Dominant deck gets an underline as well as colour and glow */
.mix__deck.is-dominant [data-deck-text] {
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}
.mix__deck--a.is-dominant [data-deck-text] { text-decoration-color: var(--mix-a); }
.mix__deck--b.is-dominant [data-deck-text] { text-decoration-color: var(--mix-b); }

/* Channel strip: EQ knobs and LED meters */
.mix__channels {
  display: flex;
  gap: var(--space-2);
  align-items: stretch;
  padding: var(--space-2);
  border-radius: var(--radius-sm);
  background: rgb(0 0 0 / .25);
  box-shadow: inset 0 1px 2px rgb(0 0 0 / .6), 0 1px 0 rgb(255 255 255 / .06);
}
.mix__eq { display: flex; flex-direction: column; justify-content: space-between; gap: var(--space-2); }
.mix__knob { display: flex; flex-direction: column; align-items: center; gap: 2px; }
.mix__knob-cap {
  position: relative;
  width: 1.45rem;
  aspect-ratio: 1;
  border-radius: 50%;
  background:
    radial-gradient(circle at 35% 30%, rgb(255 255 255 / .55), transparent 45%),
    conic-gradient(from 20deg,
      color-mix(in srgb, var(--text) 45%, var(--bg)),
      var(--text),
      color-mix(in srgb, var(--text) 35%, var(--bg)),
      color-mix(in srgb, var(--text) 80%, var(--bg)),
      color-mix(in srgb, var(--text) 40%, var(--bg)),
      var(--text),
      color-mix(in srgb, var(--text) 45%, var(--bg)));
  box-shadow:
    inset 0 1px 1px rgb(255 255 255 / .7),
    inset 0 -2px 3px rgb(0 0 0 / .45),
    0 2px 4px rgb(0 0 0 / .6),
    0 0 0 2px var(--bg-deep);
  rotate: var(--knob, 0deg);
}
.mix__knob-cap::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 2px;
  width: 2px;
  height: 40%;
  translate: -50% 0;
  border-radius: 1px;
  background: var(--bg-deep);
}
.mix__knob--hi { --knob: -40deg; }
.mix__knob--mid { --knob: 15deg; }
.mix__knob--low { --knob: 50deg; }
.mix__eq--b .mix__knob--hi { --knob: 30deg; }
.mix__eq--b .mix__knob--low { --knob: -25deg; }
.mix__knob-name {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: .06em;
  color: var(--text-muted);
}

.mix__levels { display: flex; gap: 0.3rem; align-items: stretch; }
.mix__level {
  position: relative;
  width: 0.5rem;
  min-height: 6.5rem;
  border-radius: 2px;
  overflow: hidden;
  background: rgb(255 255 255 / .08);
  /* LED segments */
  -webkit-mask: repeating-linear-gradient(to top, #000 0 4px, transparent 4px 6px);
  mask: repeating-linear-gradient(to top, #000 0 4px, transparent 4px 6px);
}
.mix__level span {
  position: absolute;
  inset: 0;
  transform-origin: bottom;
  background: linear-gradient(to top, #3fd17a, #f2c84b 70%, #ff5a4a);
}
@supports (color: oklch(0 0 0)) {
  .mix__level { background: oklch(0.32 0.03 var(--track-hue, 200)); }
  .mix__level span {
    background: linear-gradient(to top in oklch, oklch(0.78 0.17 150), oklch(0.86 0.16 95) 68%, oklch(0.68 0.21 28));
  }
}
.mix__level--a span { transform: scaleY(calc(1 - var(--mix-pos) * .85)); }
.mix__level--b span { transform: scaleY(calc(.15 + var(--mix-pos) * .85)); }

/* Whole set waveform: SVG by default, Houdini paint when supported */
.mix__wave-wrap {
  position: relative;
  height: 3.5rem;
  margin-block: var(--space-4) var(--space-3);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--bg-deep);
  box-shadow: inset 0 2px 6px rgb(0 0 0 / .6);
  overflow: hidden;
}
.mix__wave { display: block; width: 100%; height: 100%; }
.mix__wave-base rect { fill: var(--vinyl-groove); }
.mix__wave-played rect { fill: var(--accent); }
.mix__wave-mark { stroke: var(--line); stroke-width: 1; vector-effect: non-scaling-stroke; }
.mix__wave-head { stroke: var(--text); stroke-width: 2; vector-effect: non-scaling-stroke; }
.mix__wave-paint { display: none; position: absolute; inset: 0; }
@supports (background: paint(waveform)) {
  .mix--paint .mix__wave { display: none; }
  .mix--paint .mix__wave-paint {
    display: block;
    background: paint(waveform);
    --wave-color: var(--accent);
    --wave-seed: 7;
    --wave-bars: 96;
    --wave-progress: 0;
  }
}

/* Crossfader */
.mix__fader-label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text);
  margin-bottom: var(--space-2);
}
.mix__fader-row {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.mix__fader-end {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.85rem;
  width: 1.25rem;
  text-align: center;
}
.mix__fader-end:first-child { color: var(--mix-a); }
.mix__fader-end:last-child { color: var(--mix-b); }
.mix__fader-hint {
  margin: var(--space-2) 0 0;
  font-size: 0.8rem;
  color: var(--text-muted);
}
.mix__fader-track { position: relative; flex: 1; min-width: 0; }

.mix__range {
  -webkit-appearance: none;
  appearance: none;
  display: block;
  width: 100%;
  height: 2.75rem;
  margin: 0;
  background: transparent;
  cursor: pointer;
}
.mix__range::-webkit-slider-runnable-track {
  height: 0.5rem;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--mix-a), var(--line) 50%, var(--mix-b));
  box-shadow: inset 0 1px 2px rgb(0 0 0 / .7);
}
.mix__range::-moz-range-track {
  height: 0.5rem;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--mix-a), var(--line) 50%, var(--mix-b));
}
@supports (color: oklch(0 0 0)) {
  .mix__range::-webkit-slider-runnable-track { background: linear-gradient(90deg in oklch, var(--mix-a), var(--mix-b)); }
  .mix__range::-moz-range-track { background: linear-gradient(90deg in oklch, var(--mix-a), var(--mix-b)); }
}
.mix__range::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 1.5rem;
  height: 2.5rem;
  margin-top: -1rem;
  border-radius: 4px;
  border: 0;
  background: var(--text);
  box-shadow: 0 2px 6px rgb(0 0 0 / .5);
}
.mix__range::-moz-range-thumb {
  width: 1.5rem;
  height: 2.5rem;
  border-radius: 4px;
  border: 0;
  background: var(--text);
}
/* With JS, a metal cap springs to the thumb position and the native thumb becomes a hit area */
.mix--enhanced .mix__range::-webkit-slider-thumb { opacity: 0; }
.mix--enhanced .mix__range::-moz-range-thumb { opacity: 0; }
.mix__fader-cap { display: none; }
.mix--enhanced .mix__fader-cap {
  display: block;
  position: absolute;
  top: 50%;
  left: 0;
  width: 1.5rem;
  height: 2.5rem;
  margin-top: -1.25rem;
  border-radius: 5px;
  pointer-events: none;
  transform: translateX(var(--fader-x, 0px));
  background:
    linear-gradient(90deg, transparent 44%, var(--bg-deep) 44% 56%, transparent 56%),
    repeating-linear-gradient(180deg, rgb(0 0 0 / .14) 0 1px, transparent 1px 3px),
    linear-gradient(180deg, var(--text), color-mix(in srgb, var(--text) 55%, var(--bg)));
  box-shadow:
    inset 0 1px 0 rgb(255 255 255 / .9),
    inset 0 -2px 2px rgb(0 0 0 / .35),
    0 3px 8px rgb(0 0 0 / .6);
}
.mix__range:focus-visible + .mix__fader-cap { box-shadow: 0 0 0 3px var(--focus-ring), 0 3px 8px rgb(0 0 0 / .6); }

/* ---------- Motion (only when motion is OK) ---------- */
:root[data-motion="full"]:not([data-calm="on"]) .mix__mixer.is-spinning .mix__disc {
  animation: mix-spin 1.8s linear infinite;
}
:root[data-motion="full"]:not([data-calm="on"]) .mix__mixer.is-spinning .mix__deck--b .mix__disc { animation-duration: 1.75s; }
:root[data-motion="full"]:not([data-calm="on"]) .mix__card,
:root[data-motion="full"]:not([data-calm="on"]) .mix__entry::before {
  transition: border-color var(--dur) var(--ease-out), box-shadow var(--dur) var(--ease-out), background-color var(--dur) var(--ease-out);
}
:root[data-motion="full"]:not([data-calm="on"]) .mix--enhanced .mix__fader-cap {
  transition: transform var(--dur-slow) var(--spring, var(--ease-spring));
}
:root[data-motion="full"]:not([data-calm="on"]) .mix__level span {
  transition: transform var(--dur) var(--spring-soft, var(--ease-out));
}
@keyframes mix-spin { to { transform: rotate(360deg); } }

/* View transitions: the incoming record glides from Deck B onto Deck A */
::view-transition-group(mix-deck-a),
::view-transition-group(mix-deck-b) {
  animation-duration: 560ms;
  animation-timing-function: var(--spring, var(--ease-spring));
}
::view-transition-old(mix-deck-out) { animation: mix-vt-out 260ms var(--ease-out) both; }
@keyframes mix-vt-out { to { opacity: 0; transform: translateY(-0.5rem) scale(.9); } }

/* Scroll-driven entrances, scrubbed by the scroll position. JS reveal is the fallback. */
@supports (animation-timeline: view()) {
  :root[data-motion="full"]:not([data-calm="on"]) .mix__card {
    animation: mix-card-in linear both;
    animation-timeline: view();
    animation-range: entry 5% entry 80%;
  }
  :root[data-motion="full"]:not([data-calm="on"]) .mix__transition {
    animation: mix-line-in linear both;
    animation-timeline: view();
    animation-range: entry 10% entry 100%;
  }
}
@keyframes mix-card-in {
  from { opacity: 0; transform: translateY(2.5rem) scale(.97); }
  to { opacity: 1; transform: none; }
}
@keyframes mix-line-in {
  from { opacity: 0; transform: translateX(-2rem); }
  to { opacity: 1; transform: none; }
}

/* ---------- Wide screens: mixer sits beside the list ---------- */
@media (min-width: 60rem) {
  .mix__layout { grid-template-columns: minmax(0, 1fr) minmax(19rem, 23rem); gap: var(--space-7); }
  .mix__mixer { position: sticky; top: 6rem; }
}
@media (min-width: 60rem) and (max-height: 36rem) {
  .mix__mixer { position: static; }
}

/* ---------- Narrow screens: compact sticky crossfader bar ---------- */
@media (max-width: 59.99rem) {
  .mix__layout { gap: var(--space-4); }
  .mix__decks,
  .mix__wave-wrap,
  .mix__mixer-head,
  .mix__fader-hint { display: none; }
  .mix__mixer {
    position: sticky;
    bottom: var(--space-2);
    z-index: 5;
    padding: var(--space-2) var(--space-3) var(--space-3);
    border-color: var(--accent-3);
  }
  .mix__fader-label { font-size: 0.85rem; margin-bottom: 0; }
  .mix__entry { padding-inline-start: 1.75rem; }
  .mix__list::before { inset-inline-start: 0.4rem; }
  .mix__entry::before { inset-inline-start: -0.05rem; width: 0.95rem; height: 0.95rem; }
  .mix__card { padding: var(--space-4); }
}
/* Short or heavily zoomed viewports: do not pin anything, just leave it in the flow */
@media (max-width: 59.99rem) and (max-height: 30rem) {
  .mix__mixer { position: static; }
}

/* Calm mode: quieter mixer, no glow */
:root[data-calm="on"] .mix__entry.is-playing .mix__card { box-shadow: none; }
:root[data-calm="on"] .mix__mixer { box-shadow: var(--glass-highlight, none); }
:root[data-calm="on"] .mix__deck.is-dominant .mix__platter-wrap { box-shadow: none; }

/* High contrast: solid borders everywhere */
:root[data-contrast="high"] .mix__card,
:root[data-contrast="high"] .mix__mixer { border-width: 2px; }
:root[data-contrast="high"] .mix__entry.is-playing .mix__card { border-width: 3px; box-shadow: none; }