:root {
  --bg: #0f0f12;
  --fg: #e8e8ea;
  --muted: #8a8a93;
  --accent: #5eead4;
  --accent-bg: #0b3d36;
  --card: #1a1a20;
  --border: #2a2a33;
  --error: #f87171;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, system-ui, Segoe UI, Roboto, sans-serif;
  background: var(--bg); color: var(--fg);
  min-height: 100vh; display: flex; flex-direction: column;
}
.hidden { display: none !important; }
.muted { color: var(--muted); }

#login-view {
  flex: 1; display: flex; align-items: center; justify-content: center; padding: 1rem;
}
.login-card {
  width: 100%; max-width: 360px;
  background: var(--card); border: 1px solid var(--border); border-radius: 12px;
  padding: 2rem;
}
.login-card h1 { font-size: 1.4rem; margin-bottom: 0.25rem; }
.login-card p { margin-bottom: 1.5rem; font-size: 0.9rem; }
.login-card form { display: flex; flex-direction: column; gap: 1rem; }
.login-card label { display: flex; flex-direction: column; gap: 0.3rem; font-size: 0.85rem; }
.login-card input {
  padding: 0.7rem 0.85rem; background: var(--bg); color: var(--fg);
  border: 1px solid var(--border); border-radius: 8px; font-size: 1rem;
  font-family: inherit;
}
.login-card input:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
.login-card button[type="submit"] {
  margin-top: 0.5rem; padding: 0.75rem; border: none; border-radius: 8px;
  background: var(--accent); color: var(--bg); font-weight: 600; font-size: 0.95rem;
  cursor: pointer; transition: opacity 0.15s;
}
.login-card button[type="submit"]:hover { opacity: 0.9; }
.login-card button[type="submit"]:disabled { opacity: 0.5; cursor: not-allowed; }
.error { color: var(--error); font-size: 0.85rem; min-height: 1.2em; }

#player-view { display: flex; flex-direction: column; min-height: 100vh; }
header {
  padding: 1rem 1.5rem; border-bottom: 1px solid var(--border);
  display: flex; justify-content: space-between; align-items: center;
}
header h1 { font-size: 1.2rem; font-weight: 600; }
#header-right { display: flex; gap: 1rem; align-items: center; }
#now-playing { color: var(--accent); font-size: 0.9rem; }
.link-btn {
  background: transparent; border: 1px solid var(--border); color: var(--muted);
  padding: 0.3rem 0.75rem; border-radius: 6px; font-size: 0.85rem; cursor: pointer;
}
.link-btn:hover { color: var(--fg); border-color: var(--muted); }

main { flex: 1; padding: 1rem 1.5rem; max-width: 720px; margin: 0 auto; width: 100%; }
#tracks { list-style: none; display: flex; flex-direction: column; gap: 0.5rem; }
#tracks li {
  display: flex; align-items: center; gap: 1rem;
  padding: 0.75rem 1rem; background: var(--card); border: 1px solid var(--border);
  border-radius: 10px; transition: background 0.15s;
}
#tracks li:hover { background: #22222a; }
#tracks li.empty {
  justify-content: center; color: var(--muted); padding: 2rem; text-align: center;
}
#tracks li.empty code { background: #2a2a33; padding: 2px 6px; border-radius: 4px; }
button.play {
  width: 40px; height: 40px; border-radius: 50%; border: none;
  background: var(--accent); color: var(--bg); cursor: pointer; font-size: 1rem;
}
.meta .title { font-weight: 500; }
.meta .sub { font-size: 0.85rem; color: var(--muted); margin-top: 2px; }
audio { width: 100%; margin-top: 1.5rem; }

footer {
  padding: 0.75rem 1.5rem; border-top: 1px solid var(--border);
  color: var(--muted); font-size: 0.85rem;
  display: flex; justify-content: space-between;
}