* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
  --bg: #0f1115;
  --surface: #191c23;
  --surface2: #22262f;
  --text: #e8eaf0;
  --muted: #8b92a3;
  --accent: #5b8cff;
  --danger: #ff5b6a;
  --radius: 12px;
}
html, body { height: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, "Segoe UI", "Malgun Gothic", sans-serif;
  padding-bottom: 130px;
}

/* ---- topbar ---- */
.topbar {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 16px;
  position: sticky; top: 0; z-index: 10;
  background: rgba(15,17,21,.92); backdrop-filter: blur(8px);
  border-bottom: 1px solid #232732;
}
.logo { font-weight: 700; font-size: 18px; white-space: nowrap; cursor: pointer; }
@media (max-width: 420px) { .topbar .logo { font-size: 15px; } }
#searchInput {
  flex: 1; min-width: 0;
  background: var(--surface2); border: 1px solid #2c313d; border-radius: 20px;
  color: var(--text); padding: 8px 14px; font-size: 15px; outline: none;
}
#searchInput:focus { border-color: var(--accent); }

/* ---- breadcrumb / toolbar ---- */
.breadcrumb {
  display: flex; flex-wrap: wrap; align-items: center; gap: 4px;
  padding: 12px 16px 0; font-size: 14px; color: var(--muted);
}
.breadcrumb a { color: var(--accent); text-decoration: none; padding: 4px 2px; }
.breadcrumb .sep { color: #3a4050; }
.breadcrumb .cur { color: var(--text); font-weight: 600; padding: 4px 2px; }

.toolbar { display: flex; gap: 8px; padding: 10px 16px; }
.btn {
  background: var(--surface2); color: var(--text);
  border: 1px solid #2c313d; border-radius: var(--radius);
  padding: 10px 16px; font-size: 15px; cursor: pointer;
}
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }
.btn.wide { width: 100%; }
.btn:active { opacity: .8; }

/* ---- upload progress ---- */
.upload-progress { padding: 4px 16px 8px; }
.upload-label { font-size: 13px; color: var(--muted); margin-bottom: 4px; }
.bar { height: 6px; background: var(--surface2); border-radius: 3px; overflow: hidden; }
.bar-fill { height: 100%; width: 0%; background: var(--accent); transition: width .15s; }

/* ---- list ---- */
.list { padding: 4px 10px; }
.row {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 10px; border-radius: var(--radius);
  cursor: pointer; user-select: none; -webkit-user-select: none;
}
.row:active, .row.playing { background: var(--surface); }
.row.playing .row-title { color: var(--accent); }
.row-icon { font-size: 22px; width: 30px; text-align: center; flex-shrink: 0; }
.row-main { flex: 1; min-width: 0; }
.row-title { font-size: 15px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.row-sub { font-size: 12.5px; color: var(--muted); margin-top: 2px; }
.row-menu {
  background: none; border: none; color: var(--muted);
  font-size: 20px; padding: 8px 10px; cursor: pointer; flex-shrink: 0;
}
.empty { text-align: center; color: var(--muted); padding: 60px 20px; font-size: 15px; }

/* ---- menu sheet ---- */
.sheet-backdrop {
  position: fixed; inset: 0; background: rgba(0,0,0,.5); z-index: 40;
}
.sheet {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 50;
  background: var(--surface); border-radius: 16px 16px 0 0;
  padding: 8px 8px calc(env(safe-area-inset-bottom, 0px) + 12px);
}
.sheet-title {
  padding: 12px 16px 8px; font-size: 14px; color: var(--muted);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.sheet button {
  display: block; width: 100%; text-align: left;
  background: none; border: none; color: var(--text);
  font-size: 16px; padding: 14px 16px; border-radius: 10px; cursor: pointer;
}
.sheet button:active { background: var(--surface2); }
.sheet button.danger { color: var(--danger); }

/* ---- lyrics ---- */
.lyrics-sheet { max-height: 78vh; display: flex; flex-direction: column; }
.lyrics-body {
  overflow-y: auto; padding: 4px 16px 8px;
  white-space: pre-wrap; word-break: break-word;
  font-size: 15px; line-height: 1.8;
}
.lyrics-empty { color: var(--muted); text-align: center; padding: 30px 16px; }
.lyrics-edit {
  width: calc(100% - 32px); margin: 0 16px; height: 45vh;
  background: var(--surface2); color: var(--text);
  border: 1px solid #2c313d; border-radius: 10px;
  padding: 12px; font-size: 15px; line-height: 1.7;
  font-family: inherit; resize: none; outline: none;
}
.lyrics-edit:focus { border-color: var(--accent); }
.sheet-actions { display: flex; gap: 8px; padding: 10px 16px 0; }
.sheet-actions .btn { flex: 1; text-align: center; }

/* ---- player ---- */
.player {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 30;
  background: #14171d; border-top: 1px solid #232732;
  padding: 10px 16px calc(env(safe-area-inset-bottom, 0px) + 10px);
  display: grid; grid-template-columns: 1fr auto; gap: 4px 12px; align-items: center;
}
.player-info { min-width: 0; }
.player-title { font-size: 14.5px; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.player-folder { font-size: 12px; color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.player-controls { display: flex; align-items: center; gap: 4px; }
.pbtn {
  background: none; border: none; color: var(--text);
  font-size: 20px; padding: 6px 10px; cursor: pointer;
}
.pbtn.big { font-size: 28px; }
.player-seek { grid-column: 1 / -1; display: flex; align-items: center; gap: 10px; }
.time { font-size: 11.5px; color: var(--muted); min-width: 34px; text-align: center; font-variant-numeric: tabular-nums; }
#seekBar { flex: 1; accent-color: var(--accent); height: 20px; }

/* ---- login ---- */
.login-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; padding: 20px; }
.login-card {
  width: 100%; max-width: 340px; background: var(--surface);
  border-radius: 16px; padding: 32px 24px; text-align: center;
  display: flex; flex-direction: column; gap: 14px;
}
.login-sub { color: var(--muted); font-size: 14px; margin-top: -8px; }
.login-card input {
  background: var(--surface2); border: 1px solid #2c313d; border-radius: var(--radius);
  color: var(--text); padding: 12px 14px; font-size: 16px; outline: none; text-align: center;
}
.login-card input:focus { border-color: var(--accent); }
.login-error { color: var(--danger); font-size: 14px; min-height: 18px; }