:root {
  --bg: #0b0d12;
  --card: #161922;
  --ink: #eef1f7;
  --muted: #9aa3b5;
  --line: #2a3040;
  --accent: #aa5bff;
  --accent-2: #3ea6ff;
  --ok: #3dcb8a;
  --err: #ff6b7a;
  --yt: #ff4d4d;
  --radius: 14px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "Segoe UI", system-ui, sans-serif;
  background:
    radial-gradient(900px 400px at 10% -10%, rgba(170, 91, 255, 0.18), transparent 50%),
    radial-gradient(700px 400px at 100% 0%, rgba(62, 166, 255, 0.12), transparent 45%),
    var(--bg);
  color: var(--ink);
  min-height: 100vh;
}

.wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 40px 20px 80px;
}

h1 { margin: 0 0 8px; font-size: 1.7rem; }
h2 { margin: 0 0 16px; font-size: 1.15rem; }
h3 { margin: 22px 0 6px; font-size: 1rem; }
header p, .muted { color: var(--muted); }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  margin-top: 22px;
}

.result-card {
  margin-top: 28px;
}

.library-card {
  border-color: rgba(62, 166, 255, 0.45);
  box-shadow: inset 4px 0 0 var(--accent-2);
}

.suggest-card {
  border-color: rgba(255, 77, 77, 0.4);
  box-shadow: inset 4px 0 0 var(--yt);
  background: #1a1418;
}

.eyebrow {
  margin: 0 0 6px;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.library-card .eyebrow { color: var(--accent-2); }
.suggest-card .eyebrow { color: var(--yt); }

label {
  display: block;
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 12px;
}

input, select {
  width: 100%;
  margin-top: 6px;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #0f1218;
  color: var(--ink);
  font: inherit;
}

input:focus, select:focus {
  outline: 2px solid rgba(170, 91, 255, 0.45);
  border-color: var(--accent);
}

.hint {
  display: block;
  margin-top: 4px;
  font-size: 0.75rem;
  color: var(--muted);
}

details summary {
  cursor: pointer;
  color: var(--muted);
  margin: 4px 0 8px;
}

button.tiny {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--line);
  padding: 6px 10px;
  font-size: 0.8rem;
  flex-shrink: 0;
}

.track-row {
  display: flex;
  gap: 12px;
  justify-content: space-between;
  align-items: flex-start;
}
.between { justify-content: space-between; align-items: center; }

button {
  border: 0;
  border-radius: 10px;
  padding: 10px 16px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
}

button.ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--line);
}

button.play {
  background: var(--yt);
  color: #fff;
  padding: 8px 12px;
  font-size: 0.85rem;
  flex-shrink: 0;
}

button:disabled { opacity: 0.55; cursor: wait; }

.status { margin-top: 12px; font-size: 0.9rem; }
.status.ok { color: var(--ok); }
.status.err { color: var(--err); }

.hidden { display: none !important; }

#tracks,
#suggestions {
  list-style: none;
  padding: 0;
  margin: 16px 0 0;
}

#tracks li,
#suggestions li {
  border-top: 1px solid var(--line);
  padding: 12px 0;
}

#tracks strong,
#suggestions strong { display: block; }

#tracks span,
#suggestions span { color: var(--muted); font-size: 0.85rem; }

#suggestions em {
  display: block;
  margin-top: 4px;
  color: var(--ink);
  font-style: normal;
  font-size: 0.85rem;
  opacity: 0.85;
}

.suggest-row {
  display: flex;
  gap: 12px;
  justify-content: space-between;
  align-items: flex-start;
}

.player {
  margin-top: 10px;
  border-radius: 10px;
  overflow: hidden;
  background: #000;
  aspect-ratio: 16 / 9;
}

.player iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

.player-msg {
  padding: 18px;
  color: var(--muted);
  font-size: 0.85rem;
}

.nav {
  display: flex;
  gap: 10px;
  margin-top: 16px;
}
.nav a {
  color: var(--muted);
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 0.85rem;
}
.nav a[aria-current="page"] {
  color: #fff;
  border-color: var(--accent);
  background: rgba(170, 91, 255, 0.18);
}
.check-list {
  list-style: none;
  padding: 0;
  margin: 16px 0;
}
.check-list li {
  border-top: 1px solid var(--line);
  padding: 8px 0;
}
.check {
  display: flex;
  gap: 10px;
  align-items: center;
  color: var(--ink);
  margin-bottom: 12px;
}
.check input[type="checkbox"] {
  width: auto;
  margin: 0;
  accent-color: var(--accent);
}
.check span { color: var(--muted); font-size: 0.85rem; }
.check strong { flex: 1; }

.pl-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.pl-row strong { display: block; }
.pl-row .muted { font-size: 0.85rem; }
.pl-row button { width: auto; white-space: nowrap; }