/* R13: structural engineering-only player controls. Owner V03 artistic canon remains authority. */
.r13-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(260px,330px);gap:20px;align-items:start;padding-bottom:76px}
.r13-view{min-width:0;outline-offset:4px}
.r13-view > :first-child{margin-top:0}
.r13-view .wrap{width:100%;max-width:100%}
.r13-player{position:sticky;top:12px;z-index:3;background:#171922;border:1px solid #a98a5e;border-radius:10px;padding:20px;min-width:0;box-shadow:0 14px 42px rgba(0,0,0,.23)}
.r13-player strong{display:block;color:#ebdcc0;font-size:15px;line-height:1.5}
.r13-player p{font-size:13px;line-height:1.6;color:#dfd8cc}
.r13-player .eyebrow{color:#dec18f}
.r13-player-buttons{display:flex;justify-content:space-between;gap:8px;margin-block:16px}
.r13-player-buttons button{border:1px solid #b59a6c;background:#272322;color:#eee0cd;min-height:48px;min-width:46px;flex:1;font-size:15px;border-radius:6px}
.r13-player-buttons button:disabled{opacity:.45;cursor:not-allowed}
.r13-player-buttons button:focus-visible{outline:3px solid #f1c883;outline-offset:3px}
.r13-view:focus-visible{outline:3px solid #f1c883;outline-offset:4px}
.r13-player audio{display:none}
.r13-layout .legal{width:auto;max-width:none}
.r13-layout .section{width:auto;max-width:none}
.site-header nav [aria-disabled="true"]{opacity:.53;cursor:not-allowed;min-height:44px;display:inline-flex;align-items:center}
.r13-view .cards{grid-template-columns:repeat(auto-fit,minmax(min(200px,100%),1fr))}
@media(max-width:860px){.r13-layout{grid-template-columns:minmax(0,1fr);padding-bottom:20px}.r13-player{position:sticky;bottom:0;top:auto;max-width:100%;padding:14px;box-shadow:0 -9px 30px rgba(0,0,0,.4)}.r13-player p:last-child{display:none}.r13-player-buttons{margin:8px 0}}
@media(max-width:390px){.r13-player{padding:10px}.r13-player-buttons button{min-width:44px}.r13-layout{gap:8px}}
@media(prefers-reduced-motion:reduce){.r13-player{scroll-behavior:auto}}

/* CSE mobile cascade correction: retain intended one-column cards below550px. */
@media(max-width:550px){.r13-view .cards{grid-template-columns:minmax(0,1fr)}}


/* R16 functional controls: existing visual canon retained. */
.r13-player [data-r16-art]{display:block;width:min(96px,30vw);height:auto;border-radius:5px;margin-bottom:8px}
.r13-player .r16-private-label{display:block;font-size:12px;line-height:1.4;color:#dfd8cc}
.r13-player .r16-transport{display:flex;flex-wrap:wrap;gap:8px;margin-block:12px}
.r13-player button,.r16-release-listen button{min-height:44px;border:1px solid #b59a6c;background:#272322;color:#eee0cd;border-radius:6px;padding:8px 12px;font:inherit;cursor:pointer}
.r13-player button:disabled{opacity:.45;cursor:not-allowed}
.r13-player button:focus-visible,.r13-player input:focus-visible,.r16-release-listen button:focus-visible{outline:3px solid #f1c883;outline-offset:3px}
.r13-player label{display:block;font-size:13px;margin-block:8px}
.r13-player input[type=range]{width:100%;min-height:44px;margin:0;accent-color:#dec18f}
.r13-player [data-r16-clock]{display:block;font-variant-numeric:tabular-nums;font-size:13px}
.r13-player [data-r16-state]{min-height:1.5em;margin-block:6px}
.r16-release-listen{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-block:12px}
.r16-release-listen img{width:96px;height:96px;object-fit:cover;border-radius:5px}
@media(max-width:860px){.r13-player [data-r16-art]{display:none}.r13-player .r16-transport{margin-block:6px}.r13-player [data-r16-state]{display:block}.r13-player .r16-private-label{display:block}.r13-player label{margin-block:0}}

@media(max-width:860px){body{padding-bottom:330px}.r13-layout{padding-bottom:24px}.r13-player{position:fixed;left:12px;right:12px;bottom:8px;top:auto;z-index:20;max-height:45vh;overflow:auto}.r13-player .r16-transport{display:flex}.r13-player strong{font-size:14px}.r13-player label{display:grid;grid-template-columns:auto minmax(100px,1fr);align-items:center;gap:8px}}

/* R19 / Owner-approved V03 palette-derived engineering states.
   No standalone artistic approval is claimed for the visual variants.
   Bind a semantic state on the existing player host; no media or route changes.
   All colors resolve to the existing V03 bridge palette. */
:root{
  --ah-state-border:var(--ah-gold,#e9bd80);
  --ah-state-ink:var(--text,#f4f0e7);
  --ah-state-subtle:var(--muted,#b7c1c2);
  --ah-state-error-ink:var(--ah-danger,#ffb3a9);
  --ah-state-focus:var(--ah-focus,#ffe2a5);
  --ah-state-paper:var(--surface,#0d171c);
}
.r13-player[data-ah-playback-state="loading"] [data-r16-state]{
  border-inline-start:3px solid var(--ah-state-border);
  padding-inline-start:10px;color:var(--ah-state-ink);
}
.r13-player[data-ah-playback-state="playing"] [data-r16-state]{
  border-inline-start:3px solid var(--ah-state-border);
  padding-inline-start:10px;color:var(--ah-state-ink);
}
.r13-player:is([data-ah-playback-state="error"],[data-ah-playback-state="resume-needed"]) [data-r16-state]{
  border-inline-start:3px solid var(--ah-state-error-ink);
  padding-inline-start:10px;color:var(--ah-state-error-ink);
  overflow-wrap:anywhere;
}
.r13-player:is([data-ah-playback-state="idle"],[data-ah-playback-state="paused"],[data-ah-playback-state="ended"],[data-ah-playback-state="disabled"]) [data-r16-state]{
  color:var(--ah-state-subtle);
}
/* Reusable, dormant until explicitly bound by source-governed components:
   empty, unavailable-media and error UI containers. */
.ah-canon-state{border:1px solid var(--line,#37505c);
  background:var(--ah-state-paper);color:var(--ah-state-ink);
  padding:clamp(16px,2vw,24px);min-width:0;overflow-wrap:anywhere}
.ah-canon-state[data-ah-state="empty"]{
  border-style:dashed;color:var(--ah-state-subtle)}
.ah-canon-state[data-ah-state="unavailable-media"]{
  border-inline-start:3px solid var(--ah-state-border)}
.ah-canon-state[data-ah-state="error"]{
  border-inline-start:3px solid var(--ah-state-error-ink)}
.ah-canon-state[data-ah-state="loading"]{
  border-inline-start:3px solid var(--ah-state-border)}
.ah-canon-state [aria-disabled="true"],.ah-canon-state [disabled]{
  cursor:not-allowed;opacity:.7}
.ah-canon-state :focus-visible,
.r13-player :focus-visible{outline:3px solid var(--ah-state-focus);
  outline-offset:3px}
@media(max-width:550px){
  .ah-canon-state{padding:16px}
}
@media(prefers-reduced-motion:reduce){
  .ah-canon-state,.ah-canon-state *{animation:none!important;transition:none!important}
}

/* R20: specific approved-private-R006 state; no public release semantics. */
.ah-canon-state[data-ah-state="private-ready"]{
 border-inline-start:3px solid var(--ah-state-border);
 color:var(--ah-state-ink);
}


/* R21: compact, bound status notes inside source-backed catalog cards.
   Generic full-width track-detail states remain unchanged and readable.
   Exact V03 color tokens reused; no new illustrated assets. */
.r13-view .card > [data-r14-source-status].ah-canon-state{
 display:block;
 min-height:0;
 padding:10px 12px;
 margin:14px 0 0;
 font-size:13px;
 line-height:1.5;
 border-inline-start-width:3px;
 overflow-wrap:anywhere;
}
.r13-view .card > [data-r14-source-status][data-ah-state="unavailable-media"]{
 color:var(--ah-state-subtle);
}
.r13-view .card > [data-r14-source-status][data-ah-state="private-ready"]{
 color:var(--ah-state-ink);
 border-inline-start-color:var(--ah-state-border);
}
@media(max-width:550px){
 .r13-view .card > [data-r14-source-status].ah-canon-state{
   margin-top:10px;
   padding:10px 12px;
 }
}
/* Mobile fixed player must not overlap system home-indicator safe area;
   maintain scroll clearance for keyboard/fragment-target content. */
@media(max-width:860px){
 body{padding-bottom:calc(330px + env(safe-area-inset-bottom, 0px))}
 html{scroll-padding-bottom:calc(330px + env(safe-area-inset-bottom, 0px))}
 .r13-player{bottom:max(8px, env(safe-area-inset-bottom, 0px))}
}