/* Kognixr Audio Companion — shared styles for every book page. */
:root{
  --bg:#fbfaf8; --card:#ffffff; --ink:#18181b; --muted:#5f5f66; --line:#e4e2de;
  --accent:#a3262c; --accent-ink:#ffffff; --accent-soft:#f8ecec; --focus:#1d4ed8;
  --radius:14px; --bar-h:0px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark){
  :root{ --bg:#121214; --card:#1c1c1f; --ink:#f2f2f3; --muted:#a6a6ad; --line:#2e2e33;
         --accent:#e0575d; --accent-ink:#121214; --accent-soft:#2b1c1d; --focus:#93b4ff; color-scheme: dark; }
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);
  font:17px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  padding-bottom:calc(var(--bar-h) + 24px)}
a{color:inherit}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px;border-radius:6px}
.kx-skip{position:absolute;left:-9999px;top:0}
.kx-skip:focus{left:16px;top:12px;background:var(--card);padding:8px 12px;z-index:100}
.kx-wrap{max-width:760px;margin:0 auto;padding:0 16px}
.kx-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* Header */
.kx-top{padding:18px 0 0}
.kx-brand{font-weight:800;letter-spacing:.18em;font-size:.8rem;text-transform:uppercase;text-decoration:none;color:var(--muted)}
.kx-hero{padding:18px 0 8px}
.kx-hero h1{font-size:clamp(1.7rem,6vw,2.4rem);line-height:1.12;margin:0}
.kx-kicker{display:block;margin-top:6px;font-size:.85rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--accent)}
.kx-lead{margin:14px 0 4px;font-size:1.05rem}
.kx-count{margin:0;color:var(--muted)}
.kx-actions{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0 6px}
.kx-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:50px;padding:12px 18px;border-radius:12px;
  font:inherit;font-weight:700;text-decoration:none;cursor:pointer;border:2px solid var(--ink);background:var(--card);color:var(--ink)}
.kx-btn-primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.kx-actions .kx-btn{flex:1 1 220px}
.kx-btn svg{width:20px;height:20px;flex:none}
.kx-hint{font-size:.92rem;color:var(--muted);margin:12px 0 0}

/* Search */
.kx-search{margin:22px 0 8px}
.kx-search label{display:block;font-weight:700;margin-bottom:6px}
.kx-search input{width:100%;min-height:50px;padding:12px 14px;border:2px solid var(--line);border-radius:12px;font:inherit;background:var(--card);color:var(--ink)}
.kx-search input:focus{border-color:var(--focus)}
.kx-results{min-height:1.4em;margin:6px 0 0;color:var(--muted);font-size:.92rem}

/* Lists */
.kx-level{margin:26px 0 0}
.kx-level>h2{font-size:1.35rem;margin:0 0 10px;padding-bottom:6px;border-bottom:2px solid var(--ink)}
.kx-module{margin:16px 0 0}
.kx-module>h3{font-size:1.05rem;margin:0 0 8px;color:var(--muted)}
.kx-unit{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);margin:0 0 8px}
.kx-unit>summary{cursor:pointer;list-style:none;display:flex;align-items:center;gap:10px;min-height:54px;padding:12px 14px;font-weight:700}
.kx-unit>summary::-webkit-details-marker{display:none}
.kx-unit>summary::after{content:"";margin-left:auto;width:10px;height:10px;border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);transform:rotate(45deg);transition:none;flex:none}
.kx-unit[open]>summary::after{transform:rotate(-135deg)}
.kx-n{font-weight:400;color:var(--muted);font-size:.9rem;white-space:nowrap}
.kx-tracks{list-style:none;margin:0;padding:0 8px 8px}
.kx-row{display:flex;align-items:stretch;border-top:1px solid var(--line)}
.kx-track{flex:1;display:flex;align-items:center;gap:12px;padding:10px 6px;min-height:56px;text-decoration:none;color:inherit;border-radius:10px}
.kx-track:hover{background:var(--accent-soft)}
.kx-ico{flex:none;width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:var(--accent-soft);color:var(--accent)}
.kx-ico svg{width:14px;height:14px}
.kx-tt{flex:1;min-width:0}
.kx-tnum{display:block;font-weight:800;font-size:.9rem;color:var(--accent)}
.kx-tname{display:block}
.kx-dur{color:var(--muted);font-size:.88rem;font-variant-numeric:tabular-nums;white-space:nowrap}
.kx-dl{display:flex;align-items:center;justify-content:center;gap:4px;min-width:56px;padding:0 6px;color:var(--muted);text-decoration:none;font-size:.82rem;border-radius:10px}
.kx-dl:hover{background:var(--accent-soft);color:var(--ink)}
.kx-dl svg{width:18px;height:18px}
.kx-row.is-current .kx-track{background:var(--accent-soft)}
.kx-row.is-current .kx-ico{background:var(--accent);color:var(--accent-ink)}
.kx-row[hidden],.kx-unit[hidden],.kx-module[hidden],.kx-level[hidden]{display:none}

.kx-foot{margin:34px 0 0;color:var(--muted);font-size:.9rem}
.kx-foot a{color:var(--muted)}
.kx-noscript{background:var(--accent-soft);padding:12px 14px;border-radius:12px;margin:16px 0}

/* Player bar */
.kx-player{position:fixed;left:0;right:0;bottom:0;z-index:50;background:var(--card);border-top:1px solid var(--line);
  box-shadow:0 -6px 24px rgba(0,0,0,.08);padding:10px 0 calc(10px + env(safe-area-inset-bottom))}
.kx-player[hidden]{display:none}
.kx-pin{max-width:760px;margin:0 auto;padding:0 16px}
.kx-now{display:flex;align-items:baseline;gap:8px;min-width:0}
.kx-now-num{font-weight:800;color:var(--accent);white-space:nowrap}
.kx-now-title{font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.kx-seek{display:flex;align-items:center;gap:10px;margin:6px 0 4px;font-size:.85rem;color:var(--muted);font-variant-numeric:tabular-nums}
.kx-seek input{flex:1;min-width:0}
input[type=range]{accent-color:var(--accent);height:28px;margin:0}
.kx-ctrls{display:flex;align-items:center;justify-content:space-between;gap:8px;flex-wrap:wrap}
.kx-main{display:flex;align-items:center;gap:8px}
.kx-cbtn{display:flex;flex-direction:column;align-items:center;justify-content:center;min-width:56px;min-height:52px;padding:4px 8px;border-radius:12px;
  border:1px solid var(--line);background:var(--card);color:var(--ink);font:inherit;font-size:.72rem;font-weight:700;cursor:pointer}
.kx-cbtn svg{width:20px;height:20px}
.kx-play{min-width:74px;background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.kx-play svg{width:24px;height:24px}
.kx-speed{display:flex;gap:4px;flex-wrap:wrap}
.kx-speed button{min-width:44px;min-height:40px;border-radius:10px;border:1px solid var(--line);background:var(--card);color:var(--ink);font:inherit;font-size:.85rem;font-weight:700;cursor:pointer}
.kx-speed button[aria-pressed=true]{background:var(--ink);color:var(--card);border-color:var(--ink)}
.kx-rate{display:none}
.kx-rate b{font-size:1rem;line-height:20px}
.kx-vol{display:flex;align-items:center;gap:6px;font-size:.8rem;color:var(--muted)}
.kx-vol input{width:110px}
.kx-vol[hidden]{display:none}
.kx-msg{margin:6px 0 0;font-size:.9rem;color:var(--accent);font-weight:700}
.kx-msg:empty{display:none}
@media (max-width:560px){
  body{font-size:16px}
  .kx-ctrls{justify-content:center}
  .kx-speed{display:none}
  .kx-rate{display:flex}
  .kx-vol{display:none}
}
@media (prefers-reduced-motion: reduce){*{scroll-behavior:auto!important}}