:root {
  --fg: #1a1a1a;
  --fg-muted: #5b6168;
  --bg: #fafafa;
  --bg-card: #fff;
  --border: #e1e4e8;
  --border-strong: #c9ced4;
  --accent: #5865f2;
  --accent-fg: #fff;
  --accent-hover: #4752c4;
  --danger: #c44;
  --slot-empty: #f1f3f5;
  --row-tap: #eef0fe;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.45;
}

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.25rem 1rem 2rem;
}

h1 {
  font-size: 1.6rem;
  margin: 0 0 0.75rem;
}

h2 {
  font-size: 1.15rem;
  margin: 0 0 0.5rem;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

a { color: var(--accent); }

.btn {
  display: inline-block;
  padding: 0.75rem 1.25rem;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  background: var(--bg-card);
  color: var(--fg);
  font-size: 1rem;
  text-decoration: none;
  cursor: pointer;
  font-family: inherit;
}

.btn:disabled,
.btn[aria-disabled="true"] {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-fg);
}
.btn-primary:hover { background: var(--accent-hover); }

/* Landing */
.landing {
  max-width: 36rem;
  text-align: center;
  padding-top: 4rem;
}
.landing p { color: var(--fg-muted); margin-bottom: 1.5rem; }

/* Vote page */
.vote-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 720px) {
  .vote-grid {
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
  }
}

.col { min-width: 0; }

.song-list, .slot-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-card);
  overflow: hidden;
}

.song-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 0.875rem;
  min-height: 56px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  user-select: none;
}
.song-row:last-child { border-bottom: none; }
.song-row:hover, .song-row:focus-visible { background: var(--row-tap); outline: none; }
.song-row.is-hidden { display: none; }

.song-id {
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  color: var(--fg-muted);
  min-width: 1.75rem;
}

.song-meta {
  flex: 1;
  min-width: 0;
}
.song-title { font-weight: 600; }
.song-artist { color: var(--fg-muted); font-size: 0.9rem; }

.song-links { display: flex; gap: 0.25rem; }
.song-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 6px;
  text-decoration: none;
  color: var(--fg-muted);
  font-size: 1rem;
}
.song-links a:hover { background: var(--bg); color: var(--fg); }

/* Slots */
.slot-list { display: flex; flex-direction: column; }

.slot {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 0.875rem;
  min-height: 56px;
  border-bottom: 1px solid var(--border);
  background: var(--slot-empty);
}
.slot:last-child { border-bottom: none; }
.slot.is-filled { background: var(--bg-card); }

.slot-rank {
  font-weight: 700;
  font-size: 1.1rem;
  min-width: 1.5rem;
  color: var(--fg-muted);
}

.slot-empty-label {
  color: var(--fg-muted);
  font-style: italic;
  flex: 1;
}

.slot-controls { display: flex; gap: 0.25rem; }
.slot-controls button {
  width: 36px;
  height: 36px;
  border: 1px solid var(--border-strong);
  background: var(--bg-card);
  border-radius: 6px;
  font-size: 1rem;
  cursor: pointer;
  font-family: inherit;
}
.slot-controls button:disabled { opacity: 0.4; cursor: not-allowed; }
.slot-controls .btn-remove { color: var(--danger); }

.submit-row {
  margin-top: 1rem;
  display: flex;
  justify-content: flex-end;
}

.help {
  color: var(--fg-muted);
  font-size: 0.9rem;
  margin: 0 0 1rem;
}

/* Results */
.results-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}
.results-table th, .results-table td {
  padding: 0.75rem 0.875rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.results-table tr:last-child td { border-bottom: none; }
.results-table th {
  background: var(--bg);
  color: var(--fg-muted);
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
}
.results-table td.rank {
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  width: 3rem;
}

.empty-note {
  color: var(--fg-muted);
  font-style: italic;
}

/* Logout link in the header of /vote */
.logout-form {
  display: flex;
  justify-content: flex-end;
  margin: 0 0 0.5rem;
}
.link-btn {
  background: none;
  border: 0;
  padding: 0;
  color: var(--accent);
  font: inherit;
  cursor: pointer;
  text-decoration: underline;
}
.link-btn:hover { color: var(--accent-hover); }