:root{
  --bg:#061419;
  --bg-2:#0a1f27;
  --panel:#0d2731;
  --panel-2:#123543;
  --line:rgba(94,234,255,.14);
  --text:#e8fbff;
  --muted:#8fb2bd;
  --turq:#2ee6d6;
  --sky:#5ec8ff;
  --grad:linear-gradient(120deg,#2ee6d6,#5ec8ff);
  --radius:16px;
  --player-h:84px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:
    radial-gradient(900px 500px at 85% -10%, rgba(94,200,255,.18), transparent 60%),
    radial-gradient(700px 500px at 0% 100%, rgba(46,230,214,.12), transparent 60%),
    var(--bg);
  color:var(--text);
  font-family:"Segoe UI",system-ui,-apple-system,Roboto,Helvetica,Arial,sans-serif;
  min-height:100vh;
}
a{color:inherit;text-decoration:none}
h1,h2,h3{margin:0 0 .4em;letter-spacing:-.02em}
h1{font-size:2rem}
p{color:var(--muted);line-height:1.6}

/* Layout */
.app{display:grid;grid-template-columns:248px 1fr;min-height:100vh;padding-bottom:var(--player-h)}
.sidebar{
  border-right:1px solid var(--line);
  padding:22px 18px;position:sticky;top:0;height:calc(100vh - var(--player-h));overflow-y:auto;
  display:flex;flex-direction:column;gap:26px;background:rgba(6,20,25,.6);
}
.brand{display:flex;align-items:center;gap:10px;font-size:1.5rem;font-weight:800;letter-spacing:-.04em}
.brand span{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.nav{display:flex;flex-direction:column;gap:4px}
.nav a{padding:10px 12px;border-radius:10px;color:var(--muted);font-weight:600;font-size:.95rem}
.nav a:hover{background:var(--panel);color:var(--text)}
.nav a.active{background:var(--panel-2);color:var(--text);box-shadow:inset 0 0 0 1px var(--line)}
.nav a.admin-link{color:var(--turq)}
.me{margin-top:auto;border-top:1px solid var(--line);padding-top:14px;font-size:.9rem}
.me-name{font-weight:700}
.me-role{color:var(--muted);font-size:.8rem;margin-bottom:8px}
.logout{color:var(--sky);font-size:.85rem}
.content{padding:32px 34px 60px;max-width:1100px}

/* Cards & bits */
.hero{
  border-radius:var(--radius);overflow:hidden;position:relative;margin-bottom:28px;
  background:#08202b url("../img/hero.jpg") center/cover no-repeat;padding:38px 32px;
}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(6,20,25,.85),rgba(6,20,25,.15))}
.hero>*{position:relative;z-index:1}
.hero p{max-width:52ch;color:#cbe8f2}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:20px;margin-bottom:18px}
.grid{display:grid;gap:14px;grid-template-columns:repeat(auto-fill,minmax(190px,1fr))}
.pill{display:inline-block;padding:3px 10px;border-radius:999px;font-size:.72rem;font-weight:700;background:var(--panel-2);color:var(--sky)}
.pill.ok{color:#062a26;background:var(--turq)}
.badge{color:var(--turq)}
.muted{color:var(--muted)}
.row{display:flex;align-items:center;gap:12px}
.between{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}

/* Track card */
.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:12px;transition:.18s}
.card:hover{transform:translateY(-3px);border-color:rgba(94,234,255,.4)}
.card img{width:100%;aspect-ratio:1;object-fit:cover;border-radius:10px;display:block}
.card .t{font-weight:700;margin-top:10px;font-size:.95rem}
.card .a{color:var(--muted);font-size:.82rem}
.card-play{margin-top:10px;width:100%}

/* Table */
table{width:100%;border-collapse:collapse;font-size:.9rem}
th,td{text-align:left;padding:10px 8px;border-bottom:1px solid var(--line)}
th{color:var(--muted);font-weight:600;font-size:.78rem;text-transform:uppercase;letter-spacing:.06em}
tr.playing td{color:var(--turq)}

/* Buttons & forms */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:0;border-radius:10px;padding:10px 16px;font-weight:700;font-size:.9rem;
  background:var(--grad);color:#04222a;cursor:pointer;
}
.btn:hover{filter:brightness(1.08)}
.btn.ghost{background:transparent;color:var(--text);box-shadow:inset 0 0 0 1px var(--line)}
.btn.sm{padding:6px 12px;font-size:.8rem}
.btn.danger{background:#ff6b81;color:#2a0710}
label{display:block;font-size:.82rem;color:var(--muted);margin:14px 0 6px;font-weight:600}
input[type=text],input[type=email],input[type=password],input[type=file],select{
  width:100%;padding:11px 13px;border-radius:10px;background:var(--bg-2);
  border:1px solid var(--line);color:var(--text);font-size:.95rem;
}
input:focus,select:focus{outline:2px solid rgba(46,230,214,.5);outline-offset:1px}
.note{background:var(--panel-2);border-left:3px solid var(--turq);padding:12px 14px;border-radius:8px;font-size:.88rem;color:#cfeaf2}
.error{background:rgba(255,107,129,.12);border-left:3px solid #ff6b81;padding:12px 14px;border-radius:8px;font-size:.88rem}
.bar{height:8px;border-radius:99px;background:var(--bg-2);overflow:hidden;margin-top:8px}
.bar i{display:block;height:100%;background:var(--grad)}

/* Auth pages */
.auth{min-height:100vh;display:grid;place-items:center;padding:30px}
.auth-card{width:100%;max-width:420px;background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:30px}
.auth .brand{justify-content:center;margin-bottom:6px}
.roles{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:6px}
.role{border:1px solid var(--line);border-radius:12px;padding:12px;cursor:pointer;background:var(--bg-2)}
.role input{margin-right:6px}
.role.sel{outline:2px solid var(--turq)}
.role b{display:block;font-size:.92rem}
.role small{color:var(--muted)}

/* Player */
.player{
  position:fixed;left:0;right:0;bottom:0;height:var(--player-h);z-index:50;
  display:grid;grid-template-columns:260px 1fr 130px;align-items:center;gap:16px;
  padding:0 18px;background:rgba(9,31,39,.96);backdrop-filter:blur(14px);
  border-top:1px solid var(--line);
}
.player-track{display:flex;align-items:center;gap:10px;min-width:0}
.player-track img{border-radius:8px;object-fit:cover}
.pl-title{font-weight:700;font-size:.9rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pl-artist{color:var(--muted);font-size:.78rem}
.player-controls{display:flex;flex-direction:column;gap:4px}
.buttons{display:flex;align-items:center;justify-content:center;gap:14px}
.icon{background:none;border:0;color:var(--muted);font-size:1rem;cursor:pointer}
.icon:hover{color:var(--text)}
.play{width:40px;height:40px;border-radius:50%;border:0;background:var(--grad);color:#04222a;font-size:1rem;cursor:pointer}
.seek{display:flex;align-items:center;gap:10px;font-size:.72rem;color:var(--muted)}
input[type=range]{-webkit-appearance:none;appearance:none;height:5px;border-radius:99px;background:#17414f;flex:1}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:13px;height:13px;border-radius:50%;background:var(--turq);cursor:pointer}
input[type=range]::-moz-range-thumb{width:13px;height:13px;border:0;border-radius:50%;background:var(--turq)}
.player-right{display:flex;justify-content:flex-end}
#pl-vol{max-width:110px}

@media (max-width:820px){
  .app{grid-template-columns:1fr}
  .sidebar{position:static;height:auto;flex-direction:row;flex-wrap:wrap;align-items:center;border-right:0;border-bottom:1px solid var(--line)}
  .nav{flex-direction:row;flex-wrap:wrap}
  .me{margin:0;border:0;padding:0}
  .content{padding:22px 18px 60px}
  .player{grid-template-columns:1fr auto;gap:10px}
  .player-right{display:none}
}