:root{
  /* Default (current) theme */
  --bg:#0d0f12; --panel:#12161c; --panel-2:#171c23; --text:#e7ecef; --muted:#9aa6b2;
  --accent:#ff6a00; --accent-2:#37e5ff; --line:#222a33; --ok:#57d156; --warn:#ffb020;
}

*{box-sizing:border-box}
html,body{height:100%}

body{
  margin:0;
  background:linear-gradient(180deg,#0b0e13 0%, #0d0f12 60%, #0b0e13 100%);
  color:var(--text);
  font:14px/1.45 system-ui,-apple-system,Segoe UI,Roboto,Inter,Helvetica,Arial
}

header{
  display:flex;align-items:center;justify-content:space-between;padding:12px 16px;
  background:rgba(18,22,28,.9);border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:10;backdrop-filter:blur(6px)
}
header h1{font-size:15px;letter-spacing:.08em;margin:0;text-transform:uppercase;color:#fff}
header h1 span{color:var(--accent)}
.brand-sub{color:var(--muted);font-size:12px;margin-left:8px}
.controls{display:flex;gap:8px;align-items:center;flex-wrap:wrap}

.btn{
  background:linear-gradient(180deg,#1b212a,#151a21);
  border:1px solid var(--line);color:#fff;padding:8px 12px;border-radius:8px;
  cursor:pointer;transition:.15s ease;font-weight:600;letter-spacing:.02em
}
.btn:hover{border-color:#2e3744;transform:translateY(-1px)}
.btn.accent{background:linear-gradient(180deg,var(--accent),#e05700);border-color:var(--accent)}
.btn.ghost{background:transparent}
.hint{color:var(--muted);font-size:12px}

.theme-select{
  background:var(--panel-2);
  border:1px solid var(--line);
  color:var(--text);
  border-radius:8px;
  padding:8px 10px;
  outline:none;
}

.layout{display:grid;grid-template-columns:280px 1fr;gap:0;height:calc(100vh - 54px)}
.sidebar{background:var(--panel);border-right:1px solid var(--line);display:flex;flex-direction:column}
.side-top{padding:12px;border-bottom:1px solid var(--line)}

.search{
  width:100%;background:var(--panel-2);color:var(--text);border:1px solid var(--line);
  border-radius:8px;padding:8px 10px;outline:none
}
.filelist{overflow:auto;padding:8px}

.date-item{
  display:flex;justify-content:space-between;align-items:center;
  padding:10px 10px;border-radius:8px;margin:4px 0;cursor:pointer;border:1px solid transparent
}
.date-item:hover{background:var(--panel-2);border-color:#202734}
.date-item.active{background:linear-gradient(180deg,#19202a,#12161c);border-color:#2a3340}
.date-item .name{font-weight:600}
.date-item .meta{color:var(--muted);font-size:12px}

.content{overflow:auto;padding:16px}
.card{
  background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:16px;margin-bottom:16px;
  box-shadow:0 0 0 1px rgba(255,255,255,0.01) inset,0 10px 30px rgba(0,0,0,.25)
}
.card h2{margin:0 0 6px;font-size:16px}
.sub{color:var(--muted);margin:0 0 12px}

.tracks{list-style:none;margin:0;padding:0}
.tracks li{
  display:grid;grid-template-columns:56px 1fr;gap:12px;align-items:center;
  padding:10px 12px;border-bottom:1px dashed #1f2730
}
.tracks li:last-child{border-bottom:none}
.idx{
  width:44px;height:28px;display:flex;align-items:center;justify-content:center;
  border-radius:6px;background:#151b22;color:var(--accent-2);font-weight:700;border:1px solid #202733
}
.line-title{font-weight:650}
.line-artist{color:var(--muted)}
.toolbar{display:flex;gap:8px;margin-top:10px;flex-wrap:wrap}
.empty{
  padding:32px;text-align:center;color:var(--muted);border:1px dashed var(--line);border-radius:12px;
  background:rgba(23,28,35,.4)
}
.dropzone{margin-top:10px;padding:14px;border:1px dashed #2a3340;border-radius:10px;color:var(--muted)}
.dropzone.drag{border-color:var(--accent);color:#fff;background:rgba(255,106,0,.05)}
footer{padding:10px;text-align:center;color:var(--muted);font-size:12px}
code.small{background:#0f141a;padding:2px 6px;border:1px solid #1f2730;border-radius:6px}
.status{color:var(--muted);font-size:12px}
.status.ok{color:var(--ok)}
.status.warn{color:var(--warn)}

.marquee{
  width:100%;overflow:hidden;white-space:nowrap;
  background:linear-gradient(180deg,#1b212a,#151a21);
  border-bottom:1px solid var(--line);color:#fff;font-weight:600;letter-spacing:.02em;padding:6px 0;
}
.marquee__inner{
  display:inline-block;padding-left:100%;will-change:transform;animation:marquee-scroll 20s linear infinite;
}
@keyframes marquee-scroll{ 0%{transform:translateX(0)} 100%{transform:translateX(-100%)} }
@media (prefers-reduced-motion: reduce){ .marquee__inner{animation:none;padding-left:0} }

.site-footer{
  text-align:center; padding:16px; font-size:14px; color:var(--muted);
}
.site-footer a{ color:var(--accent-2); text-decoration:none; }
.site-footer a:hover{ text-decoration:underline; }

.pager{
  display:flex; gap:6px; align-items:center; justify-content:center;
  padding:10px; border-top:1px dashed var(--line); color:var(--muted);
}
.pager button{
  background:var(--panel-2); color:var(--text);
  border:1px solid var(--line); border-radius:6px;
  padding:6px 10px; cursor:pointer; font-weight:600;
}
.pager button:hover{ border-color:var(--accent); }
.pager button[disabled]{ opacity:.5; cursor:default; }
.pager .active{
  background:linear-gradient(180deg, var(--accent), var(--accent));
  color:#000; border-color:var(--accent);
}
1~.pager{
  display:flex; gap:6px; align-items:center; justify-content:center;
  padding:10px; border-top:1px dashed var(--line); color:var(--muted);
}
.pager button{
  background:var(--panel-2); color:var(--text);
  border:1px solid var(--line); border-radius:6px;
  padding:6px 10px; cursor:pointer; font-weight:600;
}
.pager button:hover{ border-color:var(--accent); }
.pager button[disabled]{ opacity:.5; cursor:default; }
.pager .active{
  background:linear-gradient(180deg, var(--accent), var(--accent));
  color:#000; border-color:var(--accent);
}