/* Genre Evolution — page styles, moved verbatim from metal_timeline_family_tree.html.
 * Shared styling (nav, badges, palette, focus) lives in hmt_theme.css. */

*{margin:0;padding:0;box-sizing:border-box}
body{background:#08080f;color:#ccc;font-family:'Segoe UI',Arial,sans-serif;overflow:hidden}

header{display:flex;align-items:center;justify-content:space-between;
  padding:8px 22px;background:linear-gradient(180deg,#1a0000 0%,#0d0d0d 100%);
  border-bottom:1px solid #3a0000;position:fixed;top:0;left:0;right:0;z-index:20;gap:16px}
.hdr-c{text-align:center;flex:1}
.hdr-c h1{font-size:1.1rem;letter-spacing:.3em;text-transform:uppercase;
  color:#cc0000;text-shadow:0 0 22px rgba(180,0,0,.55)}
.hdr-c p{font-size:.57rem;letter-spacing:.18em;color:#555;margin-top:2px;text-transform:uppercase}
.hmt-nav{display:flex;align-items:center;gap:8px;flex-shrink:0}
.hmt-nav-link{color:#aaa;text-decoration:none;font-size:.58rem;text-transform:uppercase;
  letter-spacing:.1em;padding:4px 9px;border:1px solid #444;border-radius:3px;
  transition:color .2s,border-color .2s;white-space:nowrap}
.hmt-nav-link:hover{color:#cc0000;border-color:#cc0000}

#legend{display:flex;flex-wrap:wrap;gap:3px 8px;padding:5px 20px;
  background:#0c0c18;border-bottom:1px solid #252535;
  position:fixed;top:46px;left:0;right:0;z-index:19;align-items:center}
.li{display:flex;align-items:center;gap:4px;font-size:11px;color:#bbb;
  cursor:pointer;border-radius:3px;padding:2px 7px 2px 4px;
  border:1px solid transparent;transition:opacity .18s,border-color .18s;
  user-select:none;white-space:nowrap}
.li:hover{border-color:rgba(255,255,255,.16)}
.ld{width:10px;height:10px;border-radius:50%;flex-shrink:0}
#legend-toggle{cursor:pointer;font-size:10px;color:#777;text-transform:uppercase;
  letter-spacing:.08em;padding:2px 9px;border:1px solid #3a3a3a;border-radius:3px;
  background:transparent;transition:color .18s,border-color .18s;white-space:nowrap;flex-shrink:0}
#legend-toggle:hover{color:#ccc;border-color:#888}

#ruler{position:fixed;left:0;right:0;height:32px;background:#0c0c18;
  border-bottom:1px solid #252535;overflow:hidden;z-index:18;pointer-events:none}
#ruler-svg{display:block;width:100%;height:32px}

#stage{position:fixed;left:0;right:0;bottom:0;overflow:hidden;cursor:grab}
#stage:active{cursor:grabbing}
#chart-svg{display:block}

#backdrop{position:fixed;inset:0;background:rgba(0,0,0,.65);
  opacity:0;transition:opacity .25s;pointer-events:none;z-index:99}
#panel{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);
  width:530px;max-width:92vw;background:#fff;color:#222;
  border:1px solid #8B0000;border-radius:8px;padding:26px 28px;
  opacity:0;transition:opacity .25s;pointer-events:none;
  max-height:82vh;overflow-y:auto;z-index:100;font-size:15px;line-height:1.65;
  box-shadow:0 12px 50px rgba(0,0,0,.6)}
#panel h3{font-size:18px;margin-bottom:6px}
#panel .sub{color:#555;font-size:13px;margin-bottom:8px}
#panel .origin-label{color:#8B0000;font-size:11px;font-weight:bold;
  text-transform:uppercase;letter-spacing:.5px;margin-top:10px;margin-bottom:4px}
#panel .origin-text{color:#444;font-size:13px;line-height:1.6;font-style:italic;
  border-left:2px solid #8B0000;padding-left:8px}
#panel .more-btn{color:#8B0000;cursor:pointer;text-decoration:underline;font-size:13px;margin-left:4px}
#hint{position:fixed;bottom:14px;left:16px;color:#383838;font-size:10px;
  letter-spacing:.06em;text-transform:uppercase;pointer-events:none}

/* ── Radar chart in popup panels ───────── */
.radar-wrap{margin-top:14px;padding-top:12px;border-top:1px solid #eee;text-align:center}
.radar-nums{display:flex;justify-content:space-around;margin-top:5px}
.radar-num{display:flex;flex-direction:column;align-items:center;font-family:Arial;flex:1}
.radar-num .rn-lbl{font-size:8.5px;color:#aaa;text-transform:uppercase;letter-spacing:.04em}
.radar-num .rn-val{font-size:14px;font-weight:bold;line-height:1.3}

/* ── Content warning badges ───────── */
.content-badges{display:flex;gap:6px;flex-wrap:wrap}
.content-badges--large{margin:8px 0 4px}
.content-badges--small{margin:6px 0 4px;justify-content:center}
.radar-total{text-align:center;font-size:11px;color:#777;margin-top:7px;font-weight:600;letter-spacing:.04em}

/* ── Album cover popup mode ──────────── */
.album-mode{
  width:530px!important;height:530px!important;
  padding:0!important;overflow:hidden!important;
  background:#000!important;border:none!important;
  border-radius:4px!important;max-height:none!important;
  box-shadow:0 20px 60px rgba(0,0,0,.75)!important}