/* ============================================================
   AQAI PLAYER — dark edition
   background #0E1F1A (near-black green)  ·  3D object/accent mint #9AF7B4
   text & controls white
   TRACKS are loaded live from /api/tracks instead of being hardcoded.
   Open with  #sync  in the URL to reveal the Sync Studio.
   ============================================================ */
@font-face{font-family:'Brice';src:url('assets/fonts/Brice-Light.woff2') format('woff2');font-weight:300;font-style:normal;font-display:swap}
@font-face{font-family:'Brice';src:url('assets/fonts/Brice-Regular.woff2') format('woff2');font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:'Brice';src:url('assets/fonts/Brice-Semi-Bold.woff2') format('woff2');font-weight:600;font-style:normal;font-display:swap}
@font-face{font-family:'Brice';src:url('assets/fonts/Brice-Bold.woff2') format('woff2');font-weight:700;font-style:normal;font-display:swap}
@font-face{font-family:'Brice';src:url('assets/fonts/Brice-Black.woff2') format('woff2');font-weight:900;font-style:normal;font-display:swap}
@font-face{font-family:'Brice Condensed';src:url('assets/fonts/Brice-Regular-Condensed.woff2') format('woff2');font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:'Brice Condensed';src:url('assets/fonts/Brice-Semi-Bold-Condensed.woff2') format('woff2');font-weight:600;font-style:normal;font-display:swap}
@font-face{font-family:'Brice Condensed';src:url('assets/fonts/Brice-Bold-Condensed.woff2') format('woff2');font-weight:700;font-style:normal;font-display:swap}
@font-face{font-family:'Brice Condensed';src:url('assets/fonts/Brice-Black-Condensed.woff2') format('woff2');font-weight:900;font-style:normal;font-display:swap}
@font-face{font-family:'Brice Expanded';src:url('assets/fonts/Brice-Black-Expanded.woff2') format('woff2');font-weight:900;font-style:normal;font-display:swap}
:root{
  --bg:         #0E1F1A;
  --bg-dark:    #0B1915;
  --bg-soft:    #16332A;
  --object:     #9AF7B4;
  --object-deep:#7FE39C;
  --active-green: #7CFF9E;
  --lyric-active: #127F86;
  --lyric-yellow: #FFE066;
  --gate-blue: #5AC8FA;
  --fg:         #FFFFFF;
  --fg-soft:    rgba(255,255,255,.6);
  --fg-faint:   rgba(255,255,255,.32);
  --line:       rgba(255,255,255,.18);
  --wash:       rgba(255,255,255,.08);
  --nav-bg:     rgba(14,31,26,.88);
  --hover-gradient: var(--lyric-active);
  --font-display:'Brice', sans-serif;
  --font-body:  'Brice', sans-serif;
  --font-title: 'Brice Condensed', sans-serif;
  --nav-h:      56.64px;
}
*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{height:100%;overscroll-behavior:none}
body{
  color:var(--fg);
  font-family:var(--font-body);
  touch-action:manipulation;
  overflow:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:-1;
  background:#000000;
}
body::after{
  content:"";position:fixed;left:0;right:0;bottom:0;z-index:60;
  height:10px;background:var(--artist-color, var(--active-green));pointer-events:none;
}
button{font-family:inherit;color:inherit;background:none;border:0;cursor:pointer}
button:focus-visible{outline:2px solid var(--fg);outline-offset:3px;border-radius:8px}
/* belt-and-suspenders: every clickable/interactive control shows a hand
   cursor, even non-<button> ones (the seek bar, range inputs, ...) */
button,[role="button"],[role="slider"],input[type="range"],a,.nav-btn,label{cursor:pointer}
textarea,input{font-family:var(--font-body);color:var(--fg)}
img.logo{display:block;user-select:none;-webkit-user-drag:none;filter:brightness(0) invert(1)}
body.theme-light img.logo{filter:brightness(0)}

/* ---------- entry gate (autoplay policy) ---------- */
/* while the gate is up, hide the rest of the Home screen's chrome so
   only its #stage (the panorama sphere) shows through the transparent
   gate behind the logo - otherwise the player controls, top bar and
   bottom nav would all be visible (and clickable) underneath it too */
body.gate-active .home-top,
body.gate-active #lyrics,
body.gate-active #wave-canvas,
body.gate-active .player,
body.gate-active nav,
/* intro sphere shows raw: drop the artist-color tint and the bottom
   readability scrim so no overlay sits on top of it (shader vignette /
   scanlines / darkening are disabled via the uGate uniform in app.js) */
body.gate-active #artist-color-overlay,
body.gate-active #bg-gradient{display:none}
/* the bottom accent bar is also part of that same chrome - no artist is
   loaded yet on the gate screen, so it'd otherwise show as a flat green
   strip with no purpose */
body.gate-active::after{display:none}
/* transparent - the panorama sphere from #stage (the same one the music
   screen uses) shows straight through, so the gate gets its background
   video, mouse-look, vignette and CRT lines for free instead of a
   separate copy of any of that (see loadPanoFile in app.js's boot code) */
#gate{
  position:fixed;inset:0;z-index:60;
  display:flex;align-items:center;justify-content:center;
  background:transparent;
  transition:opacity .6s ease, visibility .6s;
  padding:24px;
  overflow:hidden;
}
#gate.hidden{opacity:0;visibility:hidden}
/* logo/button/hint sit statically - only the logo itself tilts with the
   mouse (see #gate-logo-tilt below), not the button/hint text */
/* only the logo is in normal flow, so #gate's flex-centering puts it dead
   center (both axes); the button + hint float below it, offset 80px lower */
#gate-content{
  position:relative;z-index:2;
  display:flex;flex-direction:column;align-items:center;
}
.gate-actions{
  position:absolute;top:calc(100% + 80px);left:50%;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:34px;
  white-space:nowrap;
}
/* tilts in 3D with the mouse, same mechanism as the lyrics carousel */
#gate-logo-tilt{
  position:relative;perspective:800px;transform-style:preserve-3d;
  /* fully opaque, no blend - the logo is solid black and the screen-blended
     reflection layer turns its front face into a full mirror of the sphere */
}
/* extruded 3D logo: stacked copies of the same silhouette a few px
   apart in depth (see app.js, which builds the .logo3d-layer stack),
   spinning slowly around its own Y axis independent of the mouse tilt */
.logo3d{
  /* every .logo3d-layer child is position:absolute (so they can stack
     exactly on top of each other at different depths) - without an
     explicit size here the whole thing collapses to 0x0, since
     absolutely-positioned children can't establish their parent's size */
  width:50vw;aspect-ratio:8/3;
  position:relative;transform-style:preserve-3d;
  animation:logo3dSpin 10.8s linear infinite; /* 20% heavier/slower spin */
  font-family:var(--font-display);font-weight:900;letter-spacing:-.02em;
  font-size:min(108px,28.8vw);line-height:1;white-space:nowrap;
}
@keyframes logo3dSpin{ to { transform:rotateY(360deg); } }
/* every face (front/back end caps + side walls) is a canvas-rendered
   bitmap <img> - gradient + specular sheen (+ bevel on the end caps)
   baked in, see renderLogoFace() in app.js - rather than a live CSS/SVG
   gradient, which silently paints as a flat color once nested inside
   this transform-style:preserve-3d stack */
.logo3d-layer{
  position:absolute;inset:0;
  display:flex;align-items:center;justify-content:center;
}
/* front and back faces (end caps) - not the side/depth walls in between -
   at reduced opacity */
.logo3d-front,.logo3d-back{opacity:1}
/* (opacity + overlay blend for the intro logo are on #gate-logo-tilt, its
   wrapper, so #gate-logo3d keeps preserve-3d and its 50px extrusion shows) */
/* sphere-control toggle: lit in the artist colour while the user is
   steering the sphere with the mouse (auto music-reactive drift otherwise) */
/* fullscreen toggle, pinned top-left: shows the "enter fullscreen" icon by
   default, swaps to "exit fullscreen" (compress) once .on - see the
   fullscreenchange listener in app.js */
#btn-fullscreen{position:fixed;top:10px;left:10px;z-index:3}
#btn-fullscreen.on{background:var(--artist-color, var(--active-green));color:#000000;border-color:var(--artist-color, var(--active-green))}
#btn-fullscreen .fs-icon-on{display:none}
#btn-fullscreen.on .fs-icon-off{display:none}
#btn-fullscreen.on .fs-icon-on{display:block}
.gate-btn{
  font-family:var(--font-display);font-weight:600;font-size:13px;letter-spacing:.2em;
  color:var(--bg);background:var(--object);
  padding:19px 46px;border-radius:999px;
  box-shadow:0 20px 68px rgba(0,0,0,.315);
  animation:pulse 2.4s ease-in-out infinite, gateBtnColorCycle 4s ease-in-out infinite;
  transition:background .2s,transform .1s;
}
.gate-btn:hover{background:var(--object-deep)}
.gate-btn:active{background:var(--active-green)}
/* shown while the library manifest is still loading - disabled, dimmer,
   no color-cycle (that would read as "ready", which it isn't yet) */
.gate-btn.loading{
  opacity:.55;cursor:default;pointer-events:none;
  animation:pulse 1.1s ease-in-out infinite;
}
@keyframes pulse{0%,100%{transform:scale(1)}50%{transform:scale(1.05)}}
/* white -> yellow -> green -> blue -> green -> yellow -> white, then a
   short pause (still white) before looping */
@keyframes gateBtnColorCycle{
  0%{background-color:#FFFFFF}
  13.33%{background-color:var(--lyric-yellow)}
  26.67%{background-color:var(--active-green)}
  40%{background-color:var(--gate-blue)}
  53.33%{background-color:var(--active-green)}
  66.67%{background-color:var(--lyric-yellow)}
  80%,100%{background-color:#FFFFFF}
}
/* karaoke word fade: dark artist -> artist -> yellow -> white */
@keyframes wordFadeBlueGreenWhite{
  0%{color:color-mix(in srgb, var(--artist-color, var(--active-green)) 49%, black)}
  55%{color:var(--artist-color, var(--active-green))}
  80%{color:var(--lyric-yellow)}
  100%{color:var(--fg)}
}
/* karaoke word activation: no fade - the word snaps straight to white the
   instant it becomes active (still scheduled via animation-delay, same
   as the fade above, just a constant color instead of a gradient) */
@keyframes wordActiveWhite{
  0%,100%{color:var(--fg)}
}
.gate-hint{font-size:11px;color:var(--fg-soft);letter-spacing:.16em;text-transform:uppercase}
/* same white->yellow->green->blue->green->yellow->white->pause cycle as
   the button, just on text color, slower, and staggered per letter (see
   app.js, which sets --i on each .gate-hint-letter) so it sweeps left
   to right instead of changing all at once */
.gate-hint-letter{
  display:inline-block;
  animation:gateTextColorCycle 9s ease-in-out infinite;
  animation-delay:calc(var(--i) * .1s);
}
@keyframes gateTextColorCycle{
  0%{color:#FFFFFF}
  13.33%{color:var(--lyric-yellow)}
  26.67%{color:var(--active-green)}
  40%{color:var(--gate-blue)}
  53.33%{color:var(--active-green)}
  66.67%{color:var(--lyric-yellow)}
  80%,100%{color:#FFFFFF}
}

/* ---------- app shell ---------- */
#app{position:fixed;inset:0;display:flex;flex-direction:column}
.view{
  position:absolute;inset:0;bottom:calc(var(--nav-h) + env(safe-area-inset-bottom));
  display:none;flex-direction:column;
}
.view.active{display:flex}

/* ============================ HOME ============================ */
#view-home{overflow:hidden}
#stage{position:fixed;inset:0;z-index:0}
/* the 3D environments' screen treatment: instead of the sphere's shader-
   retired: the vertical-grid/VCR overlay is gone - the 3D scenes render
   clean with no scanline treatment */
#grid-overlay{display:none}
/* a plain 10% black wash over every 3D scene (and the intro tunnel) -
   sits above the WebGL stage, below all UI */
#dim-overlay{
  position:fixed;inset:0;z-index:1;pointer-events:none;display:none;
  background:#000000;opacity:.1;
}
body.scene-3d #dim-overlay,
body.gate-active #dim-overlay{display:block}
/* SPHERE: a corner vignette over the video (transparent through the
   middle, sinking to 50% black at the corners) plus a subtle repeating
   1px horizontal VCR-scanline texture on top */
#sphere-vignette{
  position:fixed;inset:0;z-index:1;pointer-events:none;display:none;
  background-image:
    repeating-linear-gradient(to bottom,
      rgba(0,0,0,.15) 0px, rgba(0,0,0,.15) 1px, transparent 1px, transparent 3px),
    radial-gradient(circle at center,
      transparent 0%, transparent 40%, rgba(0,0,0,.5) 100%);
}
body.scene-sphere #sphere-vignette{display:block}
/* retired: the PRISM edge fade is gone - beams keep full brightness out
   to the frame edges */
#prism-fade{display:none}
/* Polaroid road sky: the WebGL canvas clears transparent there, revealing
   this gradient - a little brighter near the horizon, darker up top */
body.scene-road #stage{background:linear-gradient(to top, #302864 0%, #17133e 55%, #0c071d 100%)}
/* Aveluna sky: dark blue low, fading to black at the top */
body.scene-mist #stage{background:linear-gradient(to top, #101a3e 0%, #060a1c 55%, #000000 100%)}
/* ROADS sky: a slight vertical gradient in the back - faintly lighter
   near the horizon, near-black up top */
/* ROADS runs its own fixed blue palette regardless of artist, so its
   horizon gradient stays fixed blue too instead of following
   --artist-color (which would clash with the scene's own blue tones) */
body.scene-beams #stage{background:linear-gradient(to top,
  #123064 0%, #000000 60%)}
/* NATURE horizon: black up top sinking into a modest dark blue (was the
   artist color) - a taller gradient slowly drifting its visible window up
   and down so the horizon itself reads as moving with the scene */
body.scene-check #stage{
  background-image:linear-gradient(to top, #16324f 0%, #000000 60%);
  background-size:100% 200%;
  animation:natureHorizonDrift 30s ease-in-out infinite;
}
@keyframes natureHorizonDrift{
  0%, 100%{background-position:0% 0%}
  50%{background-position:0% 100%}
}
/* BLOCKS background: black sinking into a dark red/blue gradient, the
   same drifting-window trick as NATURE so it visibly moves with the scene */
body.scene-maze #stage{
  background-image:linear-gradient(to top, #2a0a12 0%, #0a1030 50%, #000000 100%);
  background-size:100% 200%;
  animation:mazeGradientDrift 30s ease-in-out infinite;
}
@keyframes mazeGradientDrift{
  0%, 100%{background-position:0% 0%}
  50%{background-position:0% 100%}
}
/* EYES: radial gradient from the middle - artist color (20% dark) at the
   center, fading out to dark grey at the edges */
body.scene-eyes #stage{background:radial-gradient(circle at center,
  color-mix(in srgb, var(--artist-color, #7CFF9E) 80%, black) 0%, #101010 100%)}
/* PRISM: replaces the old 3D background blooms - a moving gradient at
   3.75% visible (50% darker again, was 7.5%), plus a fixed radial
   vignette on top that sinks to almost black toward the corners. Two
   layers, so background-position needs a value per layer - only the
   drifting linear one moves, the vignette stays centered */
body.scene-prism #stage{
  background-image:
    radial-gradient(circle at center, transparent 0%, transparent 40%, rgba(0,0,0,0.92) 100%),
    linear-gradient(to top,
      color-mix(in srgb, var(--artist-color, #7CFF9E) 3.75%, transparent) 0%, transparent 60%);
  background-size:100% 100%, 100% 200%;
  animation:prismGradientDrift 30s ease-in-out infinite;
}
@keyframes prismGradientDrift{
  0%, 100%{background-position:center, 0% 0%}
  50%{background-position:center, 0% 100%}
}
/* RINGS: dark background, black up top sinking into the artist color as
   the primary color at the bottom (55% mix - still dark, not full bright) */
body.scene-rings #stage{background:linear-gradient(to top,
  color-mix(in srgb, var(--artist-color, #7CFF9E) 55%, black) 0%, #000000 60%)}
/* HANDS: a horizon behind the sphere tunnel - artist color low, fading to
   black higher up */
body.scene-hands #stage{background:linear-gradient(to top,
  color-mix(in srgb, var(--artist-color, #7CFF9E) 18%, black) 0%, #000000 69%)}
/* full-screen tint in the current track's artist color, sitting right on
   top of the 3D sphere/background video (z-index:0) but below every
   other overlay/UI layer (z-index:1+) - color set per-track in
   renderMeta() via the --artist-color custom property */
/* radial fade instead of a flat tint - center keeps the original .25
   darkness, fading out toward the edges to 40% less dark (.15) since
   alpha is baked into each gradient stop, opacity itself is no longer
   used (it would darken the whole element uniformly, undoing the fade) */
/* gradient.mp4 overlay: a subtle moving color-grade wash on top of every
   3D scene, always on regardless of which background is active - sits
   right above #stage (z-index:0), below the artist-color tint and all
   other UI (z-index:1+) */
#gradient-overlay{
  position:fixed;inset:0;z-index:1;pointer-events:none;
  width:100%;height:100%;object-fit:cover;
  /* .15 base, +15% then +25% more strength on top of that */
  opacity:.216;
  /* reads as a genuine color-grade wash over the scene, not just a
     translucent video sitting on top of it */
  mix-blend-mode:color;
}
#artist-color-overlay{
  position:fixed;inset:0;z-index:1;pointer-events:none;
  background:radial-gradient(circle at 50% 50%,
    color-mix(in srgb, var(--artist-color, var(--active-green)) 18%, transparent) 0%,
    color-mix(in srgb, var(--artist-color, var(--active-green)) 10%, transparent) 100%);
  mix-blend-mode:multiply;
}
/* readability scrim behind the whole bottom UI cluster (title/artist,
   transport, duration/volume, side buttons) - sits in front of the 3D
   sphere (#stage, z-index:0) but behind all that UI content (z-index:2+);
   top is pinned dynamically to just under the artist photo, in
   positionBgGradient() */
#bg-gradient{
  position:fixed;left:0;right:0;bottom:0;z-index:1;pointer-events:none;
  /* tinted scrim: the artist's color darkened 40%, fading in toward the
     bottom (was plain black) - still dark enough to keep the UI readable */
  background:linear-gradient(to bottom,
    transparent 0%,
    color-mix(in srgb, color-mix(in srgb, var(--artist-color, var(--active-green)) 60%, #000000) 55%, transparent) 100%);
}
#stage canvas{display:block;width:100%;height:100%}

.home-top{
  position:relative;z-index:2;
  display:flex;align-items:center;justify-content:center;
  margin-top:calc(env(safe-area-inset-top) + 16px);
  padding:0 20px;
}
/* solid wordmark in the current track's artist color (--artist-color,
   set per-track in renderMeta(); falls back to the default green),
   vertically aligned with the audio visualizer (top is set dynamically
   in JS by positionLogo(), which runs alongside positionWaveCanvas());
   sits above #wave-canvas in stacking order (z-index) so the canvas can
   be clipped to leave a gap under it, per drawWaveCanvas() */
.home-top .logo-text{
  font-family:var(--font-display);font-weight:900;font-size:47.817px;
  letter-spacing:-.02em;
  position:absolute;left:50%;transform:translate(-50%, -50%);
  z-index:3;
  animation:logoGreenArtistCycle 4s ease-in-out infinite;
}
/* artist color <-> a 20%-brighter version of it, looping */
@keyframes logoGreenArtistCycle{
  0%,100%{color:var(--artist-color, var(--active-green))}
  50%{color:color-mix(in srgb, var(--artist-color, var(--active-green)) 80%, white)}
}
.pano-btns{
  position:absolute;left:14px;top:14px;
  display:flex;align-items:center;gap:6px;z-index:2;
}
.pano-btns .util-btn svg{width:12.8px;height:12.8px}
/* background-video navigator: next to the scene navigator, same layout */
.util-btn{
  width:30.4px;height:30.4px;border-radius:11.2px;position:relative;
  display:flex;align-items:center;justify-content:center;
  color:var(--artist-color, var(--active-green));border:1px solid var(--artist-color, var(--active-green));
  outline:4px solid transparent;outline-offset:-2px;
  background:rgba(255,255,255,.06);backdrop-filter:blur(8px);
  font-family:var(--font-display);font-weight:900;font-size:15px;
  transition:background-color .3s ease,color .3s ease,border-color .3s ease,border-width .1s ease,box-shadow .3s ease;
  box-shadow:0 0 3px rgba(255,255,255,0);
}
.util-btn::before{
  content:"";position:absolute;inset:0;z-index:0;border-radius:inherit;
  background:var(--hover-gradient);opacity:0;transition:opacity .5s ease;
  pointer-events:none;
}
/* hover: no scaling - background/icon/text fade to solid white + black
   over .2s, and fade back on hover-out (the .danger/remove button keeps
   its own distinct red hover treatment below instead) */
.util-btn:not(.danger):hover{
  background:#ffffff;color:#000000;border-color:#ffffff;
  box-shadow:0 0 3px rgba(255,255,255,.2);
}
/* .danger (delete/remove buttons) - a distinct red warning treatment
   instead of the default white, reused anywhere a destructive action
   button appears (pano remove, delete song, ...) */
.util-btn.danger:hover{color:#000000;outline-color:#FF5C5C;border-color:#FF5C5C}
.util-btn.danger:hover::before{opacity:1;background:#FF5C5C}
.util-btn.danger:active{background:#FF5C5C;border-color:#FF5C5C}
.util-btn:active{background:var(--artist-color, var(--active-green));color:#000000;border-color:var(--artist-color, var(--active-green))}
.util-btn svg{width:14.4px;height:14.4px;position:relative;z-index:1}
.util-btn.spinning{pointer-events:none;opacity:.6}
.util-btn.spinning svg{animation:aqaiSpin 1s linear infinite}
@keyframes aqaiSpin{to{transform:rotate(360deg)}}
.util-btn-wide{width:auto;flex:0 0 auto;gap:4.8px;padding:0 9.6px}
.util-btn-wide span{position:relative;z-index:1;line-height:1;top:1.6px;
  font-family:var(--font-title);font-weight:700;font-size:12.8px;
  letter-spacing:.04em;text-transform:uppercase;white-space:nowrap;
}

/* music-reactive line visualizer - flat 2D canvas sitting between the
   logo and the lyrics viewer (not part of the 3D sphere); top/height are
   set in JS by positionWaveCanvas() since they depend on the live
   layout of both neighbors */
/* extends 10px past the viewport edge on both sides, so the line runs a
   little further left/right than the rest of the row content - width is
   explicit (not left+right auto-stretch) since <canvas> is a replaced
   element and doesn't stretch from left/right offsets the way a <div> does */
#wave-canvas{position:absolute;left:-10px;width:calc(100% + 20px);z-index:2;pointer-events:none;display:block}

/* lyrics — 3-row carousel: the real previous/next lines sit 4px above and
   below the active line, all at the same size; only color/opacity marks
   which one is active */
/* 10% of the viewport reserved on each side (so the viewer is always
   exactly 80% wide, whatever the screen size) and centered on both
   axes - top:50%/translateY(-50%) for vertical, left/right:10% (instead
   of a fixed-px padding) for horizontal */
#lyrics{
  position:absolute;left:10%;right:10%;top:50%;transform:translateY(calc(-50% - 80px)) scale(1.5);
  z-index:2;pointer-events:none;
  text-align:center;
  height:calc(clamp(18px,calc(14vw - 10px),70px) * 4.6);overflow:hidden;
  /* very soft, light drop shadow lifting the karaoke text off the 3D scenes */
  filter:drop-shadow(0 6px 36.4px rgba(0,0,0,.42));
}
#lyric-rows{position:relative;width:100%;height:100%}
.lyric-row{
  position:absolute;left:50%;top:50%;width:100%;max-width:100%;
  white-space:nowrap;
  font-family:var(--font-title);font-weight:700;text-transform:uppercase;
  font-size:clamp(18px,calc(14vw - 10px),70px);line-height:calc(1.4em - 20px);
  transition:transform .3s ease-in-out;
}
.lyric-row .w{
  display:inline-block;margin:0 .12em;
  /* inactive rows read as solid, muted color instead of see-through text -
     darker/duller mixes instead of low opacity */
  color:color-mix(in srgb, var(--artist-color, var(--active-green)) 32%, black);opacity:1;
  transition:transform .3s ease;
}
.lyric-row.near .w{color:color-mix(in srgb, var(--artist-color, var(--active-green)) 48%, black)}
.lyric-row.active-row .w{color:color-mix(in srgb, var(--artist-color, var(--active-green)) 70%, black);opacity:1}
@media (max-width:640px){
  #lyrics{transform:translateY(calc(-50% - 110px)) scale(1.5)}
}

/* full lyrics overlay */
/* a floating vertical card over the Home screen: sits 40px below the
   logo and stops above the player/title, positioned in JS via
   positionLyricsFull() since it depends on the logo/player's live layout */
/* full-screen 50% black scrim behind the card - dims the whole app
   while the lyrics overview is open */
#lyrics-full-backdrop{
  position:fixed;inset:0;z-index:55;display:none;
  background:rgba(0,0,0,.5);
}
#lyrics-full-backdrop.open{display:block}
/* width is no longer a fixed percentage - set per-track in JS by
   buildFullLyrics() to fit the longest lyric line plus 20% breathing
   room on each side, so the card can overlap/exceed the screen when a
   line is wide instead of shrinking every line down to a fixed box */
#lyrics-full{
  position:fixed;left:50%;transform:translateX(-50%);z-index:56;
  display:none;flex-direction:column;
  background:#ffffff;border:1px solid var(--line);border-radius:20px;
  overflow:hidden;
  box-shadow:0 20px 60px rgba(0,0,0,.5);
}
#lyrics-full.open{display:flex}
.lf-close{
  position:absolute;right:13px;top:13px;z-index:2;
  width:30.4px;height:30.4px;border-radius:11.2px;
  display:flex;align-items:center;justify-content:center;
  color:#000000;border:1.5px solid #aaaaaa;
  outline:4px solid transparent;outline-offset:-2px;
  background:#ffffff;backdrop-filter:blur(8px);
  transition:transform .1s,color .5s ease,outline-color .5s ease;
}
.lf-close::before{
  content:"";position:absolute;inset:0;z-index:0;border-radius:inherit;
  background:var(--hover-gradient);opacity:0;transition:opacity .5s ease;
  pointer-events:none;
}
/* hover: solid black button with a white X icon */
.lf-close:hover{color:#ffffff;background:#000000;border-color:#000000;outline-color:transparent}
.lf-close:hover::before{opacity:0}
.lf-close:active{background:var(--artist-color, var(--active-green));color:#000000;border-color:var(--artist-color, var(--active-green))}
.lf-close svg{width:14.4px;height:14.4px;position:relative;z-index:1}
.lf-meta{
  padding:40px 22px 0 40px;text-align:left;
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
}
.lf-title{font-family:var(--font-title);font-weight:700;font-size:31.2px;text-transform:uppercase;color:color-mix(in srgb, var(--artist-color, var(--active-green)) 75%, black)}
.lf-by{font-family:var(--font-title);font-weight:400;font-size:21.84px;text-transform:uppercase;color:#666666}
.lf-sub{font-family:var(--font-title);font-weight:400;font-size:31.2px;text-transform:uppercase;color:color-mix(in srgb, var(--artist-color, var(--active-green)) 75%, black)}
/* rename-in-place on the overlay itself - same pattern as .title-edit-input
   on the main player (see beginEditTitle()/commitEditTitle()), sized to
   match .lf-title/.lf-sub instead of the smaller .meta pill text */
.lf-edit-input{
  display:none;
  font-family:var(--font-title);font-weight:700;font-size:31.2px;text-transform:uppercase;
  min-width:0;width:min(50vw,360px);
  color:#000000;
  background:transparent;border:none;border-bottom:1.5px solid var(--artist-color, var(--active-green));outline:none;
  padding:0;
}
.lf-meta.editing-title #lf-title{display:none}
.lf-meta.editing-title #lf-title-input{display:inline-block}
.lf-meta.editing-title #lf-btn-edit-title{display:none}
.lf-meta.editing-artist #lf-folder{display:none}
.lf-meta.editing-artist #lf-folder-input{display:inline-block}
.lf-meta.editing-artist #lf-btn-edit-artist{display:none}
/* owner-only cluster (rename pencils + delete) - hidden entirely unless
   the server says this request is local AND the gate password wasn't the
   restricted one (see EDITABLE/updateEditControlsVisibility() in app.js) */
.lf-edit-btns{display:flex;align-items:center;gap:6px;margin-left:auto;position:relative}
.lf-edit-btns .util-btn{width:26px;height:26px;border-radius:9px}
.lf-edit-btns .util-btn svg{width:13px;height:13px}
/* persistent pressed state (aria-pressed, not just :active/:hover) for
   toggles like #lf-btn-edit-lyrics */
.lf-edit-btns .util-btn[aria-pressed="true"]{
  background:var(--artist-color, var(--active-green));color:#000000;
  border-color:var(--artist-color, var(--active-green));
}
/* same persistent pressed look for the meta row's own flag toggle */
#btn-flag-lyrics[aria-pressed="true"]{
  background:var(--artist-color, var(--active-green));color:#000000;
  border-color:var(--artist-color, var(--active-green));
}
/* a dashed outline on every sentence while lyrics-edit mode is on, so
   click-to-edit reads as an active affordance instead of a hidden one */
#lyrics-full.lf-editing-lyrics .lyric-row{
  outline:1px dashed color-mix(in srgb, var(--artist-color, var(--active-green)) 55%, transparent);
  outline-offset:4px;border-radius:4px;
}
/* the "move to another artist" popover - a simple flyout list of every
   other artist, one button each */
.lf-artist-picker{
  display:none;position:absolute;top:calc(100% + 8px);right:0;z-index:20;
  min-width:160px;max-height:240px;overflow-y:auto;padding:6px;
  background:rgba(20,20,20,.92);backdrop-filter:blur(10px);
  border:1px solid var(--artist-color, var(--active-green));border-radius:10px;
  box-shadow:0 8px 24px rgba(0,0,0,.4);
}
.lf-artist-picker.open{display:flex;flex-direction:column;gap:2px}
.lf-artist-picker button{
  all:unset;cursor:pointer;padding:7px 10px;border-radius:6px;
  font-family:var(--font-display);font-size:12px;color:#fff;white-space:nowrap;
}
.lf-artist-picker button:hover{background:var(--artist-color, var(--active-green));color:#000}
#lf-list{
  flex:1;overflow-y:auto;padding:20px 8px 20px 38px; /* text nudged 2px left */
  /* 20px top padding keeps the first line (tight line-height) from being
     clipped at the scroll edge, and starts it ~20px below the title;
     40px of space at the bottom of the card */
  margin:0 0 40px 0;
  -webkit-overflow-scrolling:touch;
  text-align:left;
  display:flex;flex-direction:column;gap:12.5px; /* half the previous 25px cellspace between sentences */
}
/* scrollbar: a 15px thumb, horizontally centred under the close button
   (button at right:13px, width 30.4px → centre 28.2px in from the card
   edge; a 20.7px transparent right border with padding-box clip keeps the
   15px thumb centred on that same point). Hidden until the user hovers the
   list or scrolls. */
#lf-list::-webkit-scrollbar{width:35.7px}
#lf-list::-webkit-scrollbar-track{background:transparent}
#lf-list::-webkit-scrollbar-thumb{
  background:transparent;border-radius:7.5px;
  border:none;border-right:20.7px solid transparent;background-clip:padding-box;
  transition:background .2s ease;
}
#lf-list:hover::-webkit-scrollbar-thumb,
#lf-list.scrolling::-webkit-scrollbar-thumb{background:#d9d9d9}
.lf-row{
  font-family:var(--font-title);font-weight:400;text-transform:none;white-space:normal;
  /* the old single-line-only line-height (calc(0.3375em - 1.25px), well
     under the font's own glyph height) made a wrapped second line overlap
     the first once white-space allowed wrapping - 1.3em gives a wrapped row
     room to breathe while still reading tight on the common single-line case;
     5px shaved back off on top of that */
  font-size:clamp(16.5px,4.4vw,24.2px);line-height:calc(1.3em - 5px);
  padding:1px 0;
  color:#000000;
  transition:color .25s ease;
}
.lf-row .w{
  display:inline-block;margin:0 .12em;
  color:inherit;
}
.lf-row.current{color:var(--lyric-active)}
/* editable lyrics (local-only, see EDITABLE in app.js): rows get a subtle
   hover affordance, click-to-edit swaps the row's text for a plain input
   sized/styled to match (see beginEditLyricRow()/commitEditLyricRow()) */
#lf-list.editable .lf-row{cursor:pointer;border-radius:6px;transition:background-color .15s ease,color .25s ease}
#lf-list.editable .lf-row:hover{background:rgba(0,0,0,.06)}
.lf-row-edit-input{
  font:inherit;color:inherit;text-transform:inherit;
  width:100%;background:transparent;border:none;border-bottom:1.5px solid var(--artist-color, var(--active-green));outline:none;
  padding:1px 0;
}
.lf-gap{height:22px}

/* bottom player block */
.player{
  position:absolute;left:0;right:0;bottom:45px;z-index:3;
  padding:26px 20px 14px;
}

/* artist photo placeholder - profilepic.png doubles as the mask shape
   for the per-artist photos (artist_1.png etc) once those are wired up;
   for now it's just shown directly, centered above the title/artist row.
   z-index:0 (lower than .meta-row's 3) keeps it behind the song-title
   pill if the two ever overlap; top is set dynamically in JS by
   positionArtistPhoto() - 60px above the controls row */
.artist-photo-wrap{position:relative;z-index:0;width:167.0625px;margin:0 auto -5px;transform:translateY(-43px) scale(1.32)}
/* soft glow behind the photo, tinted the current track's artist colour */
.artist-photo-wrap::before{
  content:"";position:absolute;inset:-16%;z-index:0;
  border-radius:50%;pointer-events:none;
  background:radial-gradient(circle,
    color-mix(in srgb, var(--artist-color, var(--active-green)) 78%, transparent) 0%,
    transparent 68%);
  filter:blur(16px);
}
/* 2px stroke around the photo, from outside: the same profilepic.png
   silhouette, filled solid and sized 2px larger on every side, sitting
   just behind the photo so only a 2px rim of it shows around the edge */
.artist-photo-wrap::after{
  content:"";position:absolute;inset:-5px;z-index:0;pointer-events:none;
  background:var(--artist-color, var(--active-green));
  -webkit-mask-image:url('assets/profilepic.png');-webkit-mask-size:100% 100%;-webkit-mask-repeat:no-repeat;-webkit-mask-position:center;
  mask-image:url('assets/profilepic.png');mask-size:100% 100%;mask-repeat:no-repeat;mask-position:center;
}
.artist-photo{
  display:block;width:100%;height:auto;position:relative;z-index:1;
}
/* artist_N.png photos are plain rectangular RGB images (no alpha of
   their own) - clipped into profilepic.png's oval shape via mask so they
   read the same as the profilepic.png placeholder does on its own;
   profilepic.png is the exact same pixel dimensions as the artist_N.png
   files, hence the 100% 100% (no need for contain/cover math) */
.artist-photo.masked{
  -webkit-mask-image:url('assets/profilepic.png');
  -webkit-mask-size:100% 100%;
  -webkit-mask-repeat:no-repeat;
  -webkit-mask-position:center;
  mask-image:url('assets/profilepic.png');
  mask-size:100% 100%;
  mask-repeat:no-repeat;
  mask-position:center;
}
/* title/by/artist: taken out of the normal .player flow entirely and
   fixed in place instead, vertically centered (translateY(-50%)) on a
   Y set in JS by positionWaveCanvas() - together with the visualizer,
   both anchored 25px below the AQAI logo's own bottom edge */
.meta-row{
  position:fixed;left:0;right:0;top:0;z-index:3;
  transform:translateY(-50%);
  display:flex;align-items:center;justify-content:center;
  text-align:center;
}
/* pill in the artist's color behind the song/by/artist text, black text
   for contrast; scaled to 75% of its previous size overall, with
   trimmed left/right padding (10px/12px, was 22px each) */
.meta{
  position:relative;z-index:1;
  min-width:0;max-width:100%;
  display:flex;align-items:center;justify-content:center;gap:8px;
  border-radius:13px;
  padding:5.5px 12px 5.5px 10px; /* another 20px narrower (10px each side) */
  color:#000000;
  transform:scale(.8625); /* 115% of the former .75 */
  box-shadow:0 3px 8px rgba(0,0,0,.35);
  background:#eeeeee;
}
#video-export-panel{
  display:none;flex-direction:column;gap:6px;
  position:fixed;z-index:20;
  top:calc(env(safe-area-inset-top) + 14px);right:14px;
  width:min(260px,72vw);
  padding:10px 12px;border-radius:12px;
  background:rgba(10,10,10,.72);backdrop-filter:blur(10px);
  box-shadow:0 4px 16px rgba(0,0,0,.4);
}
#video-export-panel.show{display:flex}
.video-export-title{
  font-family:var(--font-title);font-weight:700;font-size:10px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--fg-soft);
}
.video-export-row{
  display:flex;align-items:center;gap:8px;
  font-family:var(--font-body);font-size:11px;color:var(--fg-soft);
}
.video-export-label{width:92px;flex:none}
.video-export-preview{
  flex:none;font-family:var(--font-body);font-weight:700;font-size:10px;
  color:var(--fg-soft);background:transparent;border:1px solid var(--fg-soft);
  border-radius:999px;padding:3px 8px;cursor:pointer;
}
.video-export-preview:hover{color:var(--artist-color, var(--active-green));border-color:var(--artist-color, var(--active-green))}
.video-export-bar{
  flex:1;height:5px;border-radius:3px;background:rgba(255,255,255,.14);overflow:hidden;
}
.video-export-fill{
  height:100%;width:0%;border-radius:3px;
  background:var(--artist-color, var(--active-green));
  transition:width .25s ease;
}
.video-export-link{
  flex:none;display:none;font-weight:700;color:var(--artist-color, var(--active-green));
  text-decoration:none;font-size:11px;
}
.video-export-row.done .video-export-link{display:inline}
.video-export-row.done .video-export-bar{display:none}
.video-export-row.error .video-export-label{color:#FF5C5C}
/* same artist-color <-> 20%-brighter cycle as the logo, just on
   background-color instead of text color */
@keyframes bgArtistBrightCycle{
  /* pill background 40% lighter (mixed with 40% white), still pulsing brighter */
  0%,100%{background-color:color-mix(in srgb, var(--artist-color, var(--active-green)) 60%, white)}
  50%{background-color:color-mix(in srgb, var(--artist-color, var(--active-green)) 45%, white)}
}
.meta > *{vertical-align:middle;position:relative;top:3px}
.meta .title{
  font-family:var(--font-title);font-weight:700;font-size:clamp(17.00595px,5.314359375vw,29.7604125px);
  word-spacing:.15em;min-width:0;text-transform:uppercase;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  color:color-mix(in srgb, var(--artist-color, var(--active-green)) 60%, black); /* artist colour, 40% darker */
}
.meta .by{
  flex:0 0 auto;font-family:var(--font-title);font-weight:400;font-size:clamp(8.83215px,2.7594vw,15.4536px);
  text-transform:uppercase;color:#000000;
}
.meta .sub{
  flex:0 0 auto;font-family:var(--font-title);font-weight:400;font-size:clamp(17.00595px,5.314359375vw,29.7604125px);
  word-spacing:.15em;text-transform:uppercase;
  white-space:nowrap;
  color:color-mix(in srgb, var(--artist-color, var(--active-green)) 60%, black); /* artist colour, 40% darker */
}
/* song title/artist: artist color -> white -> artist color, looping */
@keyframes metaGreenWhiteCycle{
  0%,100%{color:var(--artist-color, var(--active-green))}
  50%{color:var(--fg)}
}
/* rename-in-place: clicking a pencil swaps the static title/artist span
   for its input (same type styling so nothing visually jumps), typing
   and then blurring/Enter saves it - see beginEditTitle()/commitEditTitle()
   and beginEditArtist()/commitEditArtist() */
.title-edit-input{
  display:none;
  font-family:var(--font-title);font-weight:700;font-size:clamp(17.00595px,5.314359375vw,29.7604125px);letter-spacing:.02em;
  word-spacing:.15em;min-width:0;width:min(60vw,420px);
  color:#eeeeee;
  background:transparent;border:none;border-bottom:1.5px solid var(--artist-color, var(--active-green));outline:none;
  padding:0;
}
.meta.editing-title #m-title{display:none}
.meta.editing-title #m-title-input{display:inline-block}
.meta.editing-title #btn-edit-title{display:none}
.meta.editing-artist #m-folder{display:none}
.meta.editing-artist #m-folder-input{display:inline-block}
.meta.editing-artist #btn-edit-artist{display:none}
/* quick fade in on hover, slower 1s fade back to the original look on
   hover-out (the :hover rule's own faster transition wins while
   hovering; this slower one only applies once the pointer leaves) */
#btn-edit-title,#btn-edit-artist{transition:background-color 1s ease,color 1s ease,border-color 1s ease,box-shadow 1s ease}
#btn-edit-title:hover,#btn-edit-artist:hover{transition:background-color .3s ease,color .3s ease,border-color .3s ease,box-shadow .3s ease}
/* rename buttons are shown (edit song title / edit artist name) */
/* transport (left) · progress/volume (middle) · lyrics/download/share/etc
   (right), sitting together as one centered cluster with exactly 40px
   between each group (not spread to the row's full width) */
/* one continuous "single line" tier all the way from full width down to
   the 650px breakpoint below - controls-row stays a centered 80%-wide
   cluster throughout, and .bar-row (duration/volume) fluidly narrows
   with it via max-width:75% (a percentage of controls-row's own width,
   so it shrinks smoothly as the viewport does); there is no separate
   fixed-width tier in between anymore, only this and the 650px stack */
.controls-row{
  position:relative;top:25px;
  display:flex;align-items:center;justify-content:center;flex-wrap:wrap;
  gap:25px;min-height:44px;margin-bottom:14px;
  width:80%;margin-left:auto;margin-right:auto;
}
/* base .bar-row rule - MUST stay above the responsive overrides below
   (their equal-specificity .bar-row rules only win by coming later in
   the file; this one used to live far below them and silently clobbered
   every breakpoint's override) */
.bar-row{
  display:flex;align-items:center;justify-content:center;gap:10px;
  flex:1 1 auto;max-width:75%;min-width:0;
  /* only meaningful while it shares a row with .transport/.side-btns (not
     wrapped to its own line) - matches their -15px so all three stay
     vertically aligned; cancelled below once it wraps onto its own row */
  position:relative;top:-15px;
}
.transport{display:flex;align-items:center;gap:8px;position:relative;top:-15px}
.transport-center{display:flex;align-items:center;gap:8px}
.ctl.big-play{width:44px;height:44px;border-radius:15px}
.ctl.big-play svg{width:20px;height:20px}
/* now a direct sibling of .transport/.bar-row in .controls-row, so the
   40px gap from the volume slider comes for free via .controls-row's own
   gap - no extra margin needed */
.side-btns{display:flex;align-items:center;gap:10px;position:relative;top:-15px}
.mobile-more-btn{display:none;flex:0 0 auto}

/* narrower still: not enough room for transport + duration/volume side by
   side, so the duration/volume block (with Lyrics/download/share riding
   along with it) drops to its own row, sitting between the transport
   controls above and the bottom tab bar below, instead of squeezing
   everything onto one line */
@media (max-width:650px){
  .controls-row{flex-wrap:wrap;row-gap:12px}
  /* the duration/volume bar is what actually drops to its own row here;
     transport and the side buttons keep sharing the row above it,
     side-btns sitting right of the transport controls */
  .transport{order:1}
  .side-btns{order:2;margin-left:20px}
  .bar-row{order:3;flex-basis:100%;width:100%;max-width:100%;flex-wrap:wrap;justify-content:center;top:0}
  /* same size as the plain icon buttons (download/share) instead of the
     wider text pill, so all three side buttons match */
  #btn-fulllyrics{width:30.4px;padding:0}
  #btn-fulllyrics span{display:none}
  /* 80% of the full-size photo (167.0625px * 1.32 scale) */
  .artist-photo-wrap{transform:translateY(-43px) scale(1.056)}
}

/* true mobile: exactly 15px from the actual screen edge (not the wider
   80%-centered cluster used above), on both the transport row and the
   duration/volume row. Transport becomes three zones spanning the full
   width - shuffle pinned left, prev/play/next centred, the "..." button
   pinned right - and side-btns (Lyrics/download/share) hide behind that
   "..." button instead of sitting inline, only appearing (as their own
   centred row) once #btn-more toggles #side-btns' .open class. */
@media (max-width:480px){
  .player{padding-left:15px;padding-right:15px}
  .controls-row{width:100%;margin-left:0;margin-right:0}
  /* bleeds past .player's own 15px side padding, so the position/volume
     row alone reaches the true screen edge (transport row above keeps it) */
  .bar-row{width:calc(100% + 30px);margin:0 -15px;padding:0}
  .transport{width:100%;justify-content:space-between;gap:0}
  #c-random{transform:scale(.9)}
  .mobile-more-btn{display:flex}
  .side-btns{display:none;order:4;flex-basis:100%;width:100%;margin:10px 0 0;justify-content:center}
  .side-btns.open{display:flex}
}

#vu-meter{
  display:flex;align-items:flex-end;justify-content:center;gap:2px;
  height:20px;flex:0 0 auto;
  /* the flex row centers this against the 23px home icon by default;
     nudge down by half the height difference so their bottoms line up
     instead of their centers */
  position:relative;top:1.5px;
}
#vu-meter span{
  width:3px;min-height:0;border-radius:1.5px;
  background:#ffffff;
  transition:height .08s linear;
}
/* the Home tab is filled green while active, so its bars switch to
   black there for contrast - same convention as the tab's own icon */
.nav-btn.active #vu-meter span{background:#000000}
.ctl{
  flex:0 0 auto;width:33.6px;height:33.6px;border-radius:11.2px;position:relative;
  display:flex;align-items:center;justify-content:center;
  color:var(--artist-color, var(--active-green));border:1px solid var(--artist-color, var(--active-green));
  background:rgba(255,255,255,.06);backdrop-filter:blur(8px);
  outline:4px solid transparent;outline-offset:-2px;
  transition:background-color .3s ease,color .3s ease,border-color .3s ease,box-shadow .3s ease;
  box-shadow:0 0 3px rgba(255,255,255,0);
}
.ctl::before{
  content:"";position:absolute;inset:0;z-index:0;border-radius:inherit;
  background:var(--hover-gradient);opacity:0;transition:opacity .5s ease;
  pointer-events:none;
}
/* hover: no scaling - background/icon fade to solid white + black over
   .2s, and fade back on hover-out */
.ctl:hover{background:#ffffff;color:#000000;border-color:#ffffff;box-shadow:0 0 3px rgba(255,255,255,.2)}
.ctl:active{background:var(--artist-color, var(--active-green));color:#000000;border-color:var(--artist-color, var(--active-green))}
.ctl svg{width:15.2px;height:15.2px;position:relative;z-index:1}
.ctl.toggle.on{color:#000000;background:var(--artist-color, var(--active-green));border-color:var(--artist-color, var(--active-green));box-shadow:0 8px 22px rgba(0,0,0,.4)}
.ctl.toggle.on:hover{background:#ffffff;border-color:#ffffff;color:#000000;box-shadow:0 0 3px rgba(255,255,255,.2)}
.ctl.toggle.on:hover::before{opacity:0}

.bar-row .time{font-family:var(--font-title);font-size:11px;letter-spacing:.06em;color:var(--fg-soft);flex:0 0 auto;position:relative;top:1px}
#t-cur{left:-2px} /* current position text: net 2px left of centre */
#bar{
  position:relative;height:26px;flex:1 1 auto;display:flex;align-items:center;cursor:pointer;
  touch-action:none;min-width:0;
}
#bar::before{content:"";position:absolute;left:0;right:0;height:5px;border-radius:2.5px;background:#888888}
#bar-fill{
  position:absolute;left:0;height:5px;width:0%;border-radius:2.5px;
  background:var(--artist-color, var(--active-green));
}
#bar-knob{
  position:absolute;width:19.84px;height:19.84px;border-radius:50%;
  /* artist-colour outer circle with a small grey (matching the bar) centre dot */
  background:radial-gradient(circle,
    #000000 0, #000000 4px,
    var(--artist-color, var(--active-green)) 4px, var(--artist-color, var(--active-green)) 100%);
  left:0%;transform:translateX(-50%);
  border:2px solid var(--artist-color, var(--active-green));
  transition:transform .15s ease;
}
#bar:hover #bar-knob{transform:translateX(-50%) scale(1.15)}
/* same rounded-button chrome as .ctl (transport controls) - border,
   transparent fill, fade-to-white on hover, fade-to-artist-color on
   active - so the mute button matches every other round icon button */
.vol-btn{
  flex:0 0 auto;width:33.6px;height:33.6px;border-radius:11.2px;position:relative;
  display:flex;align-items:center;justify-content:center;
  color:var(--artist-color, var(--active-green));border:1px solid var(--artist-color, var(--active-green));background:transparent;
  outline:4px solid transparent;outline-offset:-2px;
  transition:background-color .3s ease,color .3s ease,border-color .3s ease,box-shadow .3s ease;
  box-shadow:0 0 3px rgba(255,255,255,0);
}
.vol-btn::before{
  content:"";position:absolute;inset:0;z-index:0;border-radius:inherit;
  background:var(--hover-gradient);opacity:0;transition:opacity .5s ease;
  pointer-events:none;
}
.vol-btn:hover{background:#ffffff;color:#000000;border-color:#ffffff;box-shadow:0 0 3px rgba(255,255,255,.2)}
.vol-btn:active{background:var(--artist-color, var(--active-green));color:#000000;border-color:var(--artist-color, var(--active-green))}
.vol-btn svg{width:15.2px;height:15.2px;position:relative;z-index:1}
/* .on = sound currently on (not muted) - same filled "engaged" look as
   .ctl.toggle.on (the play button while playing) */
.vol-btn.on{color:#000000;background:var(--artist-color, var(--active-green));border-color:var(--artist-color, var(--active-green));box-shadow:0 8px 22px rgba(0,0,0,.4)}
.vol-btn.on:hover{background:var(--artist-color, var(--active-green));border-color:var(--artist-color, var(--active-green));color:#000000}
.vol-btn.muted{color:var(--fg-faint);border-color:var(--fg-faint)}
#c-volume{
  --vol-pct:100%;
  flex:0 1 55px;width:55px;height:26px;
  -webkit-appearance:none;appearance:none;cursor:pointer;
  background:transparent;
  margin-left:7px; /* extra space from the duration text, on top of the row's own gap */
}
#c-volume::-webkit-slider-runnable-track{
  height:5px;border-radius:2.5px;
  background:linear-gradient(to right, var(--artist-color, var(--active-green)) var(--vol-pct), #888888 var(--vol-pct));
}
#c-volume::-moz-range-track{height:5px;background:#888888;border-radius:2.5px}
#c-volume::-moz-range-progress{height:5px;background:var(--artist-color, var(--active-green));border-radius:2.5px}
#c-volume::-webkit-slider-thumb{
  -webkit-appearance:none;margin-top:-7.42px;
  width:19.84px;height:19.84px;border-radius:50%;
  background:radial-gradient(circle,
    #000000 0, #000000 4px,
    var(--artist-color, var(--active-green)) 4px, var(--artist-color, var(--active-green)) 100%);
  border:2px solid var(--artist-color, var(--active-green));
  transition:transform .15s ease;
}
#c-volume:hover::-webkit-slider-thumb{transform:scale(1.15)}
#c-volume::-moz-range-thumb{
  width:19.84px;height:19.84px;border-radius:50%;
  background:radial-gradient(circle,
    #000000 0, #000000 4px,
    var(--artist-color, var(--active-green)) 4px, var(--artist-color, var(--active-green)) 100%);
  border:2px solid var(--artist-color, var(--active-green));
  transition:transform .15s ease;
}
#c-volume:hover::-moz-range-thumb{transform:scale(1.15)}

/* ============================ LIST ============================ */
#view-list{padding:calc(env(safe-area-inset-top) + 18px) 0 0;overflow:hidden}
.list-head{padding:0 22px 14px}
.list-head h2{font-family:var(--font-display);font-weight:600;font-size:14px;letter-spacing:.24em;text-transform:uppercase}
.list-head p{margin-top:4px;font-size:12px;color:var(--fg-soft)}
#list-search{
  width:100%;margin-top:12px;padding:11px 14px;border-radius:999px;
  border:1.5px solid var(--line);background:rgba(255,255,255,.08);
  font-size:13px;
}
#list-search::placeholder{color:var(--fg-faint)}
#tracklist{
  flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch;
  padding-bottom:70px; /* 20px + 50px extra requested space */
  scrollbar-width:none;-ms-overflow-style:none; /* scroll still works, just no visible scrollbar */
}
#tracklist::-webkit-scrollbar{display:none;width:0;height:0}
/* light black gradient stuck to the bottom of the list, fading the last
   rows out under the nav bar - purely decorative, doesn't block taps */
#tracklist-gradient{
  position:absolute;left:0;right:0;bottom:0;height:120px;z-index:1;
  pointer-events:none;
  background:linear-gradient(to bottom, rgba(0,0,0,0) 0%, rgba(0,0,0,.5) 100%);
}
/* --row-color is set inline per element in renderList() from that artist's
   own tr.artistColor, so each artist's section shows its own accent
   instead of one flat color across the whole list */
.group-header{
  padding:39px 22px 6px;font-family:var(--font-display);font-weight:600;
  font-size:30px;letter-spacing:.2em;text-transform:uppercase;color:var(--row-color, var(--fg-soft));
}
.track{
  width:100%;height:35px;display:flex;align-items:center;gap:14px;text-align:left;
  padding:0 22px;border-bottom:1.5px solid var(--line);box-sizing:border-box;
  transition:background .5s ease;
}
.track:active{background:rgba(124,255,158,.18)}
.track.playing{background:var(--wash)}
.track .idx{
  font-family:var(--font-display);font-size:11px;color:var(--fg-soft);
  width:24px;flex:0 0 auto;
  transition:color .5s ease;
  position:relative;top:2px;
}
.track.playing .idx{color:var(--row-color, var(--active-green))}
.track.playing .t-title{color:var(--row-color, var(--active-green))}
.track .t-meta{flex:1;min-width:0}
.track .t-title{
  font-family:var(--font-title);font-size:24.125px;font-weight:400;
  word-spacing:.15em;text-transform:uppercase;
  color:#eeeeee;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  transition:color .5s ease;
  position:relative;top:2px;
}
.track .t-len{font-size:11px;color:var(--fg-soft);flex:0 0 auto;transition:color .5s ease;position:relative;top:2px}
.track:hover{background:var(--row-color, var(--active-green))}
.track:hover .idx,.track:hover .t-title,.track:hover .t-len{color:#000000}
.eq{display:none;gap:2px;align-items:flex-end;height:14px;flex:0 0 auto}
.track.playing .eq{display:flex}
.eq i{width:3px;background:var(--row-color, var(--active-green));border-radius:2px;animation:eq .9s ease-in-out infinite}
.eq i:nth-child(2){animation-delay:.2s}.eq i:nth-child(3){animation-delay:.4s}
@keyframes eq{0%,100%{height:4px}50%{height:14px}}

/* ============================ INFO ============================ */
#view-info{padding:calc(env(safe-area-inset-top) + 18px) 22px 0;overflow-y:auto}
#view-info .logo{width:min(200px,56vw);height:auto;margin:26px auto 26px}
.info-block{max-width:560px;margin:0 auto 22px}
.info-block h3{font-family:var(--font-display);font-weight:600;font-size:11px;letter-spacing:.26em;text-transform:uppercase;margin-bottom:8px;
  display:inline-block;background:var(--object);color:var(--bg);padding:5px 10px;border-radius:6px}
.info-block p{font-size:14px;line-height:1.7}
.info-block p.dim{color:var(--fg-soft);font-size:12px}
#lyrics-audit-results{margin-top:10px}
#lyrics-audit-results ul{list-style:none;margin-top:6px;display:flex;flex-direction:column;gap:6px}
#lyrics-audit-results li{font-size:13px;line-height:1.5;padding:8px 10px;border:1px solid var(--line);border-radius:8px}

/* ============================ SYNC STUDIO ============================ */
#view-sync{padding:calc(env(safe-area-inset-top) + 18px) 22px 0;overflow-y:auto}
.sync-head h2{font-family:var(--font-display);font-weight:600;font-size:14px;letter-spacing:.24em;text-transform:uppercase}
.sync-head p{margin:6px 0 16px;font-size:12px;color:var(--fg-soft);line-height:1.6}
#sync-search{
  width:100%;margin-bottom:12px;padding:11px 14px;border-radius:999px;
  border:1.5px solid var(--line);background:rgba(255,255,255,.08);
  font-size:13px;
}
#sync-search::placeholder{color:var(--fg-faint)}
.sync-tracks{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px;max-height:160px;overflow-y:auto}
.sync-track{
  font-size:12px;font-weight:700;padding:10px 16px;border-radius:999px;
  border:1.5px solid var(--line);
  transition:background .2s,border-color .2s;
}
.sync-track:hover{border-color:var(--object)}
.sync-track:active{background:var(--artist-color, var(--active-green));color:#000000;border-color:var(--artist-color, var(--active-green))}
.sync-track.sel{background:var(--artist-color, var(--active-green));color:#000000;border-color:var(--artist-color, var(--active-green))}
#sync-lyrics{
  width:100%;min-height:140px;resize:vertical;
  background:rgba(255,255,255,.08);border:1.5px solid var(--line);border-radius:12px;
  padding:12px;font-size:14px;line-height:1.6;
}
#sync-lyrics::placeholder{color:var(--fg-faint)}
.sync-actions{display:flex;gap:8px;margin:14px 0 24px;flex-wrap:wrap}
.btn{
  font-family:var(--font-display);font-weight:600;font-size:11px;letter-spacing:.14em;
  padding:14px 22px;border-radius:999px;border:1.5px solid var(--fg);
  transition:background .2s,color .2s;
}
.btn:hover:not(:disabled){background:var(--fg);color:var(--bg)}
.btn:active:not(:disabled){background:var(--artist-color, var(--active-green));color:#000000;border-color:var(--artist-color, var(--active-green))}
.btn.primary{background:var(--object);color:var(--bg);border-color:var(--object)}
.btn.primary:hover:not(:disabled){background:var(--object-deep);color:var(--bg)}
.btn:disabled{opacity:.35}
/* tapping overlay */
#tap-ui{position:fixed;inset:0;z-index:55;display:none;flex-direction:column;background:var(--bg)}
#tap-ui.on{display:flex}
.tap-top{padding:calc(env(safe-area-inset-top) + 16px) 20px 0;display:flex;justify-content:space-between;align-items:center}
.tap-top .t{font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--fg-soft)}
.tap-words{flex:0 0 auto;text-align:center;padding:26px 20px 8px}
#tap-prev{font-size:13px;color:var(--fg-faint);min-height:20px}
#tap-word{font-family:var(--font-display);font-weight:900;font-size:clamp(30px,9vw,52px);margin:6px 0;color:var(--fg)}
#tap-next{font-size:14px;color:var(--fg-soft);min-height:22px}
#tap-count{font-size:11px;color:var(--fg-soft);margin-top:10px;letter-spacing:.14em}
#tap-zone{
  flex:1;margin:18px 20px calc(env(safe-area-inset-bottom) + 18px);
  border:2px dashed var(--fg-faint);border-radius:24px;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-display);font-weight:600;font-size:13px;letter-spacing:.22em;
  color:var(--fg-soft);user-select:none;touch-action:none;
}
#tap-zone:active{background:var(--wash);border-style:solid}
.tap-side{display:flex;gap:8px;padding:0 20px}
#sync-out{
  width:100%;min-height:120px;display:none;
  background:rgba(255,255,255,.08);border:1.5px solid var(--line);border-radius:12px;
  padding:12px;font-size:11px;font-family:monospace;margin-bottom:24px;
}

/* track-loading scrim: #track-loader covers everything below the top
   toolbar (its own top edge is set in JS to the toolbar's bottom edge);
   the two .track-loader-piece divs cover the toolbar's own left/right
   halves (pano/util buttons) while leaving a gap for the centred AQAI
   logo - all three positioned live in JS, see positionLoaderPieces() */
#track-loader,.track-loader-piece{
  position:fixed;left:0;right:0;bottom:0;z-index:45;
  background:rgba(0,0,0,.2);
  opacity:0;pointer-events:none;
  transition:opacity .15s ease;
}
#track-loader.show,.track-loader-piece.show{opacity:1;pointer-events:auto}

/* ============================ NAV — tab bar ============================ */
nav{
  position:fixed;left:50%;bottom:4px;z-index:50;
  transform:translateX(-50%);
  width:calc(100% - 8px);max-width:650px;
  height:calc(var(--nav-h) + env(safe-area-inset-bottom));
  padding:0 0 env(safe-area-inset-bottom);
  display:flex;gap:2px;
  background:transparent;
}
.nav-btn{
  flex:1;display:flex;align-items:center;justify-content:center;gap:7px;position:relative;
  background:color-mix(in srgb, color-mix(in srgb, var(--artist-color, var(--active-green)) 21%, black) 70%, white);
  border:none;
  border-radius:22px 22px 0 0;
  color:var(--artist-color, var(--active-green));
  opacity:.81;
  transition:transform .2s ease,color .1s ease,background .2s ease,opacity .2s ease;
}
.nav-btn.active{opacity:1}
/* hover: icon/text turn white and the tab lifts up - no stroke at all,
   here or at rest (the currently-active tab stays filled green instead,
   see .active below) */
.nav-btn:not(.active):hover{
  color:#ffffff;transform:translateY(-5px);
  /* tab background 20% brighter on hover (its rest colour mixed with 20% white) */
  background:color-mix(in srgb, color-mix(in srgb, color-mix(in srgb, var(--artist-color, var(--active-green)) 21%, black) 70%, white) 80%, white);
}
.nav-btn svg{width:23px;height:23px;position:relative;z-index:1}
.nav-btn-word{position:relative;z-index:1}
#vu-meter{position:relative;z-index:1}
.nav-btn:active{background:var(--artist-color, var(--active-green));color:#000000;border-color:var(--artist-color, var(--active-green))}
.nav-btn.active{background:var(--artist-color, var(--active-green));color:#000000;border-color:var(--artist-color, var(--active-green))}
.nav-btn.hidden{display:none}
.nav-btn-word{font-family:var(--font-display);font-weight:900;font-size:18.75px;letter-spacing:-.02em}

/* toast */
#toast{
  position:fixed;left:50%;bottom:calc(var(--nav-h) + env(safe-area-inset-bottom) + 16px);
  transform:translateX(-50%) translateY(10px);z-index:70;
  background:var(--object);color:var(--bg);
  font-size:12px;font-weight:400;letter-spacing:.06em;
  padding:10px 20px;border-radius:999px;
  opacity:0;pointer-events:none;transition:opacity .25s,transform .25s;
}
#toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

@media (prefers-reduced-motion:reduce){
  .gate-btn{animation:none}
  .eq i{animation:none;height:8px}
}