/* Mobile-first, modern UI for GitHub Pages */
:root{
  --bg:#0b0d12;
  --panel:#111521;
  --card:#141a28;
  --text:#eef3ff;
  --muted:#9aa6bf;
  --border:rgba(255,255,255,.08);
  --accent:#6ee7ff;
  --accent2:#9bffb6;
  --shadow: 0 18px 50px rgba(0,0,0,.45);
  --radius:16px;
  --radius2:22px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  background:
    radial-gradient(1200px 700px at 20% -10%, rgba(110,231,255,.10), transparent 60%),
    radial-gradient(900px 600px at 100% 10%, rgba(155,255,182,.08), transparent 55%),
    var(--bg);
  color:var(--text);
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.mono{font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;}
.muted{color:var(--muted)}
.hidden{display:none !important}

.topbar{
  position:sticky; top:0; z-index:50;
  display:flex; gap:10px; align-items:center;
  padding: calc(10px + env(safe-area-inset-top)) 12px 10px 12px;
  background: rgba(11,13,18,.85);
  backdrop-filter: blur(14px);
  border-bottom:1px solid var(--border);
}

.iconbtn{
  width:44px; height:44px;
  border-radius:14px;
  border:1px solid var(--border);
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
  color:var(--text);
  display:grid; place-items:center;
  font-size:18px;
}

.pill{
  border:1px solid var(--border);
  background: rgba(255,255,255,.04);
  color:var(--text);
  height:44px;
  padding:0 12px;
  border-radius:999px;
  font-size:14px;
}

.brand{flex:1; min-width:0}
.brand-title{font-weight:800; letter-spacing:.2px; line-height:1.05}
.brand-subtitle{
  font-size:12px; color:var(--muted);
  white-space:nowrap; overflow:hidden; text-overflow:ellipsis;
  margin-top:2px;
}

.main{
  height: calc(100% - 126px); /* approx: topbar + player */
  padding-bottom: env(safe-area-inset-bottom);
}

.viewer{
  height: 100%;
  overflow:auto;
  padding: 18px 14px 120px 14px; /* leave room for player */
  scroll-behavior:auto;
  -webkit-overflow-scrolling: touch;
  font-size: 20px;
  line-height: 1.55;
  outline: none;
}

/* Hide scrollbars but keep scrollable */
.viewer::-webkit-scrollbar{width:0;height:0}
.viewer{scrollbar-width:none}

.song-titleline{
  font-weight: 850;
  font-size: 1.25em;
  margin-bottom: 10px;
}

.songtext{
  margin:0;
  white-space: pre-wrap;
  word-break: break-word;
}

.line{
  margin: 6px 0;
}

.chord{
  display:inline-block;
  padding: 0 8px;
  margin: 0 2px;
  border-radius: 10px;
  font-weight: 900;
  color: #061018;
  background: linear-gradient(180deg, rgba(110,231,255,.95), rgba(110,231,255,.65));
  box-shadow: 0 8px 24px rgba(110,231,255,.10);
}

/* Player bar */
.player{
  position:fixed; left:0; right:0; bottom:0; z-index:60;
  padding: 10px 12px calc(12px + env(safe-area-inset-bottom)) 12px;
  background: rgba(11,13,18,.88);
  backdrop-filter: blur(16px);
  border-top:1px solid var(--border);
}

.player-row{
  display:flex; align-items:center; gap:10px;
}

.player-row-2{ margin-top:10px; gap:12px; }

.playerbtn{
  width:52px; height:52px;
  border-radius:18px;
  border:1px solid var(--border);
  background: linear-gradient(180deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
  color:var(--text);
  font-size:18px;
  display:grid; place-items:center;
}

.playerbtn.primary{
  width:58px; height:58px;
  border-color: rgba(110,231,255,.35);
  background: radial-gradient(120% 120% at 30% 10%, rgba(110,231,255,.28), rgba(255,255,255,.02));
}

.playerbtn.ghost{
  width:auto; padding:0 14px; font-size:14px;
}

.speedbox{
  flex:1;
  display:flex; align-items:center; gap:10px;
  border:1px solid var(--border);
  border-radius:18px;
  padding:8px 10px;
  background: rgba(255,255,255,.03);
  min-width: 0;
}
.mini{
  width:40px; height:40px;
  border-radius:14px;
  border:1px solid var(--border);
  background: rgba(255,255,255,.04);
  color:var(--text);
  font-size:18px;
}
.speedread{
  flex:1; min-width:0;
  display:flex; align-items:baseline; justify-content:center; gap:6px;
}
.speednum{font-weight:900; font-size:18px}
.speedunit{font-size:12px; color:var(--muted)}

.progress{
  flex:1;
  height: 10px;
  border-radius: 999px;
  accent-color: var(--accent);
}

.modepill{
  display:flex;
  border:1px solid var(--border);
  border-radius: 999px;
  overflow:hidden;
}
.seg{
  border:0;
  padding:10px 12px;
  background: transparent;
  color: var(--muted);
  font-weight: 700;
}
.seg.active{
  color: var(--text);
  background: rgba(110,231,255,.12);
}

/* Sheets */
.sheet{
  position:fixed; inset:0; z-index:80;
  background: rgba(0,0,0,.55);
  display:flex; align-items:flex-end; justify-content:center;
  padding: 14px;
}
.sheet-card{
  width:min(720px, 100%);
  max-height: 88vh;
  background: rgba(17,21,33,.96);
  border:1px solid var(--border);
  border-radius: var(--radius2);
  overflow:hidden;
  box-shadow: var(--shadow);
}
.sheet-head{
  display:flex; align-items:center; justify-content:space-between;
  padding: 12px 12px;
  border-bottom:1px solid var(--border);
}
.sheet-title{font-weight:900}
.sheet-body{
  padding: 12px;
  overflow:auto;
  max-height: calc(88vh - 120px);
}
.sheet-foot{
  padding: 10px 12px;
  border-top:1px solid var(--border);
  font-size:12px;
}

.input, select{
  width:100%;
  border:1px solid var(--border);
  background: rgba(0,0,0,.25);
  color: var(--text);
  border-radius: 14px;
  padding: 12px 12px;
  font-size: 15px;
  outline: none;
}
.input.small{width:140px}
.songlist{
  margin-top:12px;
  display:flex;
  flex-direction:column;
  gap:10px;
}
.songitem{
  padding:12px;
  border-radius: 16px;
  border:1px solid var(--border);
  background: rgba(255,255,255,.03);
  color: var(--text);
}
.songitem .t{font-weight:850}
.songitem .a{color:var(--muted); font-size:13px; margin-top:2px}
.songitem:active{transform: scale(.99)}

.settings{display:flex; flex-direction:column; gap:12px}
.card{
  border:1px solid var(--border);
  background: rgba(255,255,255,.03);
  border-radius: var(--radius);
  padding: 12px;
}
.label{font-weight:800}
.hint{color:var(--muted); font-size:12px; margin-top:4px}
.row{display:flex; gap:10px; align-items:center}
.row.wrap{flex-wrap:wrap}
.row.between{justify-content:space-between}
.field{display:flex; flex-direction:column; gap:6px; color:var(--muted); font-size:12px}
.field.grow{flex:1}
.btn{
  border:1px solid var(--border);
  background: rgba(255,255,255,.04);
  color: var(--text);
  border-radius: 14px;
  padding: 12px 12px;
  font-weight: 800;
}

/* Switch */
.switch{position:relative; display:inline-block; width:52px; height:30px}
.switch input{display:none}
.slider{
  position:absolute; cursor:pointer; inset:0;
  background: rgba(255,255,255,.12);
  border:1px solid var(--border);
  border-radius: 999px;
  transition: .2s;
}
.slider:before{
  content:"";
  position:absolute; height:24px; width:24px; left:3px; top:2px;
  background: rgba(255,255,255,.92);
  border-radius: 999px;
  transition: .2s;
}
.switch input:checked + .slider{
  background: rgba(110,231,255,.22);
  border-color: rgba(110,231,255,.35);
}
.switch input:checked + .slider:before{ transform: translateX(22px); }

.toast{
  position:fixed; left:50%; transform:translateX(-50%);
  bottom: 140px;
  padding: 10px 12px;
  border-radius: 999px;
  background: rgba(20,26,40,.92);
  border:1px solid var(--border);
  box-shadow: var(--shadow);
  font-size: 13px;
}