/* Piliano — feuille de style unique */
:root{
  --bg:#0e1116;
  --bg-2:#151a22;
  --bg-3:#1c232e;
  --line:#2a3441;
  --fg:#e8edf4;
  --fg-dim:#93a1b3;
  --accent:#4c8dff;
  --accent-2:#7aa2ff;
  --ok:#2fd07a;
  --warn:#ffb020;
  --err:#ff5c6c;
  --radius:10px;
  --h-top:52px;
  --h-bottom:64px;
  --kbd-h:150px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--fg);
  font:14px/1.45 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  overflow:hidden;
  -webkit-font-smoothing:antialiased;
}
.mono{font-family:ui-monospace,"Cascadia Mono",Consolas,monospace}
.dim{color:var(--fg-dim)}
.small{font-size:12px}
.grow{flex:1}
.row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.row.end{justify-content:flex-end}
.hidden{display:none !important}

/* ---------- Barre du haut ---------- */
#topbar{
  height:var(--h-top);
  display:flex;align-items:center;gap:14px;padding:0 14px;
  background:var(--bg-2);border-bottom:1px solid var(--line);
}
.brand{font-weight:700;letter-spacing:.3px;display:flex;align-items:center;gap:7px}
.brand .logo{font-size:19px}
.song-title{flex:1;text-align:center;color:var(--fg-dim);font-size:13px;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-actions{display:flex;gap:8px;align-items:center}

/* ---------- Boutons ---------- */
.btn{
  background:var(--bg-3);color:var(--fg);border:1px solid var(--line);
  border-radius:8px;padding:6px 12px;font:inherit;font-size:13px;cursor:pointer;
  transition:background .12s,border-color .12s,transform .06s;
}
.btn:hover{background:#26303d;border-color:#3a4757}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}
.btn-primary:hover{background:var(--accent-2);border-color:var(--accent-2)}
.btn-icon{padding:6px 9px}
.btn-play{font-size:16px;padding:4px 16px;background:var(--accent);border-color:var(--accent);color:#fff}
.btn-play:hover{background:var(--accent-2)}
.btn[disabled]{opacity:.4;cursor:not-allowed}

.badge{font-size:11px;padding:2px 8px;border-radius:20px;border:1px solid var(--line);white-space:nowrap}
.badge-off{color:var(--fg-dim);background:var(--bg-3)}
.badge-on{color:#052; background:var(--ok);border-color:var(--ok);font-weight:600}

/* ---------- Scène ---------- */
#stage{
  position:relative;
  height:calc(100% - var(--h-top) - var(--h-bottom));
  display:flex;flex-direction:column;
}
#scoreArea{position:relative;flex:1;min-height:0;background:
  radial-gradient(120% 100% at 50% 0%, #131a24 0%, var(--bg) 70%)}
#scoreCanvas{width:100%;height:100%;display:block}
#keyboardArea{height:var(--kbd-h);border-top:1px solid var(--line);background:var(--bg-2)}
#keyboardCanvas{width:100%;height:100%;display:block}

.overlay-hint{
  position:absolute;inset:0;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:10px;text-align:center;
  background:rgba(14,17,22,.75);backdrop-filter:blur(2px);
}
.overlay-hint h2{margin:0;font-size:20px;font-weight:600}
.overlay-hint p{margin:0;color:var(--fg-dim)}

/* ---------- Transport ---------- */
#transport{
  height:var(--h-bottom);display:flex;align-items:center;gap:12px;
  padding:0 12px;background:var(--bg-2);border-top:1px solid var(--line);
  overflow-x:auto;
}
#transport .group{display:flex;align-items:center;gap:6px;flex:0 0 auto}
#transport .group.grow{flex:1 1 130px;min-width:120px}
.seg-label{font-size:10px;color:var(--fg-dim);text-transform:uppercase;letter-spacing:.4px}
.seg{display:flex;border:1px solid var(--line);border-radius:8px;overflow:hidden;background:var(--bg-3)}
.seg button{
  background:transparent;border:0;border-right:1px solid var(--line);
  color:var(--fg-dim);padding:6px 9px;font:inherit;font-size:12px;cursor:pointer;
}
.seg button:last-child{border-right:0}
.seg button:hover{background:#26303d;color:var(--fg)}
.seg button.active{background:var(--accent);color:#fff;font-weight:600}
#seek{width:100%;accent-color:var(--accent)}
.stats{font-size:12px;color:var(--fg-dim);white-space:nowrap}

/* ---------- Modales ---------- */
.modal{position:fixed;inset:0;background:rgba(6,9,13,.72);display:flex;
  align-items:center;justify-content:center;z-index:40;padding:20px}
.modal-box{background:var(--bg-2);border:1px solid var(--line);border-radius:14px;
  width:min(560px,100%);max-height:88vh;display:flex;flex-direction:column;
  box-shadow:0 20px 60px rgba(0,0,0,.55)}
.modal-box.wide{width:min(1000px,100%)}
.modal-head{display:flex;align-items:center;gap:10px;padding:14px 16px;border-bottom:1px solid var(--line)}
.modal-head h2{margin:0;font-size:16px}
.modal-foot{padding:12px 16px;border-top:1px solid var(--line);display:flex;align-items:center;gap:12px}
.input{background:var(--bg-3);border:1px solid var(--line);color:var(--fg);
  border-radius:8px;padding:6px 10px;font:inherit;font-size:13px;min-width:0}
.input:focus{outline:2px solid var(--accent);outline-offset:-1px}

.settings{padding:6px 16px 16px;overflow:auto}
.setting{padding:14px 0;border-bottom:1px solid var(--line)}
.setting:last-child{border-bottom:0}
.setting-head{display:flex;align-items:center;gap:10px;margin-bottom:4px}
.setting h3{margin:0;font-size:13px;font-weight:600}
.setting p{margin:0 0 8px}
.check{display:flex;align-items:center;gap:8px;font-size:13px;margin:6px 0;cursor:pointer}
.check input{accent-color:var(--accent);width:15px;height:15px}
.slider-label{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--fg-dim);margin-top:6px}
.slider-label input{accent-color:var(--accent)}
.meter{height:6px;background:var(--bg-3);border-radius:4px;overflow:hidden;margin:8px 0 4px}
.meter>div{height:100%;width:0;background:var(--ok);transition:width .06s linear}

/* ---------- Bibliothèque ---------- */
.tabs{display:flex;gap:4px;padding:10px 16px 0}
.tabs button{background:transparent;border:0;border-bottom:2px solid transparent;
  color:var(--fg-dim);padding:6px 10px;font:inherit;font-size:13px;cursor:pointer}
.tabs button.active{color:var(--fg);border-bottom-color:var(--accent);font-weight:600}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));
  gap:12px;padding:14px 16px;overflow:auto}
.card{background:var(--bg-3);border:1px solid var(--line);border-radius:12px;
  padding:12px;cursor:pointer;position:relative;transition:border-color .12s,transform .08s}
.card:hover{border-color:var(--accent);transform:translateY(-2px)}
.card h4{margin:0 0 2px;font-size:14px;line-height:1.3}
.card .meta{color:var(--fg-dim);font-size:12px}
.card .tags{display:flex;gap:6px;margin-top:8px;flex-wrap:wrap}
.tag{font-size:11px;padding:2px 7px;border-radius:20px;background:#232d3a;color:var(--fg-dim)}
.tag.lvl1{background:#123a2a;color:#6ee7a8}
.tag.lvl2{background:#3a3312;color:#ffd479}
.tag.lvl3{background:#3a1720;color:#ff9aa6}
.card-actions{position:absolute;top:8px;right:8px;display:flex;gap:4px;opacity:0;transition:opacity .12s}
.card:hover .card-actions{opacity:1}
.icon-btn{background:rgba(0,0,0,.35);border:1px solid var(--line);color:var(--fg-dim);
  border-radius:6px;width:24px;height:24px;font-size:12px;cursor:pointer;line-height:1}
.icon-btn:hover{color:var(--fg);border-color:var(--accent)}
.icon-btn.on{color:var(--warn)}
.empty{padding:40px;text-align:center;color:var(--fg-dim);grid-column:1/-1}

/* ---------- Import ---------- */
.dropzone{margin:16px;padding:32px;border:2px dashed var(--line);border-radius:12px;
  text-align:center;cursor:pointer;transition:border-color .12s,background .12s}
.dropzone:hover,.dropzone.over{border-color:var(--accent);background:rgba(76,141,255,.06)}
.dz-icon{font-size:34px;margin-bottom:6px}
.dropzone p{margin:2px 0}
.import-result{padding:0 16px 16px;display:flex;flex-direction:column;gap:8px}
.import-result label{width:100px;font-size:13px;color:var(--fg-dim)}

.drop-overlay{position:fixed;inset:0;z-index:60;background:rgba(76,141,255,.14);
  border:3px dashed var(--accent);display:flex;align-items:center;justify-content:center;
  font-size:20px;font-weight:600;pointer-events:none}

.toast{position:fixed;bottom:80px;left:50%;transform:translateX(-50%);
  background:var(--bg-3);border:1px solid var(--line);border-radius:10px;
  padding:10px 16px;z-index:70;box-shadow:0 8px 30px rgba(0,0,0,.5);font-size:13px}
.toast.err{border-color:var(--err);color:#ffc2c8}
.toast.ok{border-color:var(--ok)}

@media (max-width:820px){
  :root{--kbd-h:110px;--h-bottom:100px}
  #transport{flex-wrap:wrap;height:auto;padding:8px 10px;gap:10px}
  .song-title{display:none}
}