:root{
  --bg:#0d0f14; --panel:#151922; --panel2:#1c2130; --border:#2a3145;
  --txt:#e8ecf5; --muted:#8b93a7; --accent:#7c5cff; --accent2:#00d4ff;
  --ok:#2ecc71; --warn:#f1c40f; --err:#ff5c7a;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;height:100%}
body{
  background:radial-gradient(1200px 600px at 20% -10%,#1a1440 0%,var(--bg) 55%);
  color:var(--txt); font:15px/1.5 "Segoe UI",system-ui,-apple-system,sans-serif;
}
code{background:#0a0c12;border:1px solid var(--border);padding:1px 6px;border-radius:5px;font-size:13px}
.hidden{display:none !important}
.spacer{flex:1}
.error{color:var(--err);font-size:14px;margin-top:8px}
.hint{color:var(--muted);font-size:13px}
.meta{color:var(--muted);font-size:14px}
.sub{color:var(--muted);font-size:14px;margin:4px 0 14px}

/* login */
.center-box{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}
.login-card{width:100%;max-width:380px;text-align:center}
.login-card h1{margin:0 0 4px;font-size:28px}
.login-card form{text-align:left}

/* layout */
.topbar{
  display:flex;align-items:center;gap:14px;padding:12px 20px;
  background:rgba(13,15,20,.85);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--border);position:sticky;top:0;z-index:5
}
.brand{font-size:17px}
.project-pick{display:flex;align-items:center;gap:8px}
.project-pick .lbl{color:var(--muted);font-size:13px}
.badge{background:var(--panel2);border:1px solid var(--border);padding:4px 10px;border-radius:20px;font-size:13px}

.tabs{display:flex;gap:4px;padding:10px 20px 0;border-bottom:1px solid var(--border);overflow-x:auto}
.tab{
  background:none;border:1px solid transparent;border-bottom:none;color:var(--muted);
  padding:9px 16px;border-radius:8px 8px 0 0;cursor:pointer;font-size:14px;white-space:nowrap
}
.tab:hover{color:var(--txt);background:var(--panel)}
.tab.active{background:var(--panel);color:var(--txt);border-color:var(--border)}

main{padding:20px;max-width:1200px;margin:0 auto}
.tabpage{animation:fade .18s ease}
@keyframes fade{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}

.toolbar{display:flex;align-items:center;gap:12px;margin-bottom:16px;flex-wrap:wrap}

/* cards */
.card{
  background:var(--panel);border:1px solid var(--border);border-radius:12px;
  padding:18px 20px;margin-bottom:16px
}
.card h2{margin:0 0 12px;font-size:17px}
.card h3{margin:0 0 8px;font-size:15px}
.login-card{background:var(--panel);border:1px solid var(--border);border-radius:16px;padding:28px}

/* forms */
label{display:block;color:var(--muted);font-size:13px;margin:10px 0 5px}
input,select,textarea{
  width:100%;background:#0a0c12;border:1px solid var(--border);color:var(--txt);
  padding:9px 11px;border-radius:8px;font-size:14px;font-family:inherit
}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent)}
textarea{resize:vertical;font-family:ui-monospace,Consolas,monospace}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.span2{grid-column:span 2}
.align-end{display:flex;align-items:flex-end}
.row{display:flex;gap:10px;align-items:center;margin-top:12px}
.row.end{justify-content:flex-end}

/* buttons */
.btn{
  background:var(--panel2);border:1px solid var(--border);color:var(--txt);
  padding:9px 15px;border-radius:8px;cursor:pointer;font-size:14px;font-family:inherit
}
.btn:hover{border-color:var(--accent);background:#232a3d}
.btn.primary{background:linear-gradient(135deg,var(--accent),#5b3df0);border-color:transparent;font-weight:600}
.btn.primary:hover{filter:brightness(1.12)}
.btn.ghost{background:transparent}
.btn.danger{background:#3a1520;border-color:#5c2233;color:#ff8fa3}
.btn.sm{padding:4px 10px;font-size:13px}
.btn.full{width:100%;margin-top:16px}
.btn:disabled{opacity:.5;cursor:not-allowed}

/* DJ list */
.dj-list{display:flex;flex-direction:column;gap:12px}
.dj-card{background:var(--panel);border:1px solid var(--border);border-radius:12px;overflow:hidden}
.dj-head{
  display:flex;align-items:center;gap:12px;padding:12px 16px;cursor:pointer;
  user-select:none
}
.dj-head:hover{background:var(--panel2)}
.dj-avatar{width:42px;height:42px;border-radius:8px;object-fit:cover;background:#0a0c12;border:1px solid var(--border)}
.dj-name{font-weight:600;flex:1}
.dj-count{color:var(--muted);font-size:13px}
.dj-caret{color:var(--muted);transition:transform .15s}
.dj-card.open .dj-caret{transform:rotate(90deg)}
.dj-body{display:none;border-top:1px solid var(--border);padding:8px 12px;max-height:420px;overflow-y:auto}
.dj-card.open .dj-body{display:block}

.song-row{
  display:flex;align-items:center;gap:10px;padding:7px 8px;border-radius:7px;font-size:14px
}
.song-row:hover{background:var(--panel2)}
.song-id{color:var(--muted);font-family:ui-monospace,Consolas,monospace;font-size:12px;min-width:110px}
.song-name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.song-name.empty{color:var(--warn);font-style:italic}
.empty-msg{color:var(--muted);padding:14px;text-align:center;font-size:14px}

/* table */
.table{width:100%;border-collapse:collapse;font-size:14px}
.table th{
  text-align:left;color:var(--muted);font-weight:500;font-size:12px;
  text-transform:uppercase;letter-spacing:.5px;padding:8px 10px;border-bottom:1px solid var(--border)
}
.table td{padding:9px 10px;border-bottom:1px solid #1e2433;vertical-align:top}
.table tr:hover td{background:var(--panel2)}
.table .actions{text-align:right;white-space:nowrap}

/* chips */
.chips{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.chip{
  background:var(--panel2);border:1px solid var(--border);border-radius:20px;
  padding:5px 12px;font-size:13px;display:flex;align-items:center;gap:8px
}
.chip button{background:none;border:none;color:var(--err);cursor:pointer;font-size:15px;line-height:1}

/* result box */
.result{margin-top:14px;padding:12px 14px;border-radius:9px;font-size:14px;background:#0f1520;border:1px solid var(--border)}
.result.ok{border-color:#1e5c3a;background:#0e1f16}
.result.warn{border-color:#5c4a1e;background:#1f1a0e}
.result b{color:var(--accent2)}

/* modal */
.modal{position:fixed;inset:0;background:rgba(0,0,0,.65);display:flex;align-items:center;justify-content:center;z-index:50;padding:20px}
.modal-card{width:100%;max-width:460px;margin:0}
.modal-card h3{margin:0 0 6px}

/* toast */
.toast{
  position:fixed;bottom:24px;left:50%;transform:translateX(-50%);
  background:var(--panel2);border:1px solid var(--border);color:var(--txt);
  padding:11px 20px;border-radius:10px;z-index:99;font-size:14px;
  box-shadow:0 8px 30px rgba(0,0,0,.5);max-width:90vw;text-align:center
}
.toast.ok{border-color:#1e5c3a}
.toast.err{border-color:#5c2233;color:#ff8fa3}

@media(max-width:720px){
  .grid2{grid-template-columns:1fr}
  .span2{grid-column:span 1}
  main{padding:14px}
  .topbar{flex-wrap:wrap;gap:8px}
}