.tool-heading {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.tool-heading h3 {
  margin: 3px 0 0;
  font-size: 1rem;
}

.tool-heading > span {
  color: var(--muted);
  font-size: 0.72rem;
}

.tool-heading > span[data-state="error"] {
  color: var(--danger);
}

.source-dock {
  margin-top: 18px;
}

.source-dock .source-tools {
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
}

.source-mode-tabs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 7px;
  margin-bottom: 14px;
  padding: 5px;
  border: 1px solid #ffffff14;
  border-radius: 13px;
  background: #090c10;
}

.source-mode-tab {
  min-height: 40px;
  padding: 0 12px;
  border-color: transparent;
  background: transparent;
  color: var(--muted);
  font-size: 0.78rem;
}

.source-mode-tab[aria-selected="true"] {
  border-color: #55e6a54d;
  background: #55e6a514;
  color: var(--accent);
}

.source-mode-panel {
  min-width: 0;
}

.source-mode-panel .provider-box,
.source-mode-panel .epg-import,
.source-mode-panel .playlist-tools,
.source-mode-panel .paste-box,
.source-mode-panel .file-button {
  margin: 0;
}

.source-mode-panel[data-source-panel="playlist"] {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(260px, 0.85fr);
  gap: 12px 16px;
  align-items: start;
}

.source-mode-panel[data-source-panel="playlist"] .paste-box {
  grid-column: 1;
}

.source-mode-panel[data-source-panel="playlist"] .playlist-tools {
  grid-column: 2;
  grid-row: 1 / span 2;
}

.source-mode-panel[data-source-panel="epg"] .epg-import {
  margin: 0;
}

.source-mode-panel[hidden] {
  display: none;
}

.tools-panel {
  margin-top: 18px;
  padding: 0;
  overflow: hidden;
}

.tools-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 17px 18px;
  cursor: pointer;
  list-style: none;
}

.tools-summary::-webkit-details-marker {
  display: none;
}

.tools-summary h2 {
  margin: 3px 0 0;
  font-size: 1rem;
}

.tools-summary > span {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 700;
}

.tools-summary > span::after {
  content: "⌄";
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border: 1px solid #ffffff1a;
  border-radius: 9px;
  background: #171c22;
  color: var(--text);
  font-size: 1rem;
}

.tools-panel[open] .tools-summary {
  border-bottom: 1px solid #ffffff14;
}

.tools-panel[open] .tools-summary > span::after {
  content: "⌃";
}

.tools-content {
  padding: 16px 18px 18px;
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  align-items: start;
}

.tool-section,
.tools-panel .diagnostics-panel,
.tools-panel .epg-panel {
  min-width: 0;
  margin: 0;
  padding: 14px;
  border: 1px solid #ffffff1a;
  border-radius: 13px;
  background: #0d1115;
}

.tools-panel .diagnostics-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.tools-panel .epg-grid {
  grid-template-columns: 1fr;
}

.library-panel {
  margin-top: 18px;
}

.library-panel .library-heading h3 {
  font-size: 1rem;
}

.library-panel .library-entries {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 14px;
}

.channel-details,
.player-metadata-grid,
.player-metadata-grid > div,
.player-metadata-grid dd {
  min-width: 0;
  max-width: 100%;
}

.player-metadata-grid dd {
  white-space: normal;
}

.playlist-entries {
  scrollbar-width: thin;
  scrollbar-color: #39434d transparent;
  scrollbar-gutter: stable;
}

.playlist-entries::-webkit-scrollbar {
  width: 9px;
}

.playlist-entries::-webkit-scrollbar-track {
  background: transparent;
}

.playlist-entries::-webkit-scrollbar-thumb {
  border: 2px solid transparent;
  border-radius: 99px;
  background: #39434d;
  background-clip: padding-box;
}

.playlist-entries::-webkit-scrollbar-button {
  display: none;
  width: 0;
  height: 0;
}

@media (min-width: 841px) {
  .hero {
    max-width: none;
    margin-bottom: 20px;
  }

  .hero h1 {
    max-width: 760px;
    font-size: clamp(2.7rem, 6vw, 4.9rem);
  }

  .workspace {
    grid-template-columns: minmax(0, 1.65fr) minmax(320px, 0.75fr);
    align-items: start;
  }

  .player-panel {
    min-height: 0;
  }

  .player-panel .media-shell {
    min-height: clamp(380px, 52vh, 560px);
  }

  .source-panel {
    height: clamp(620px, 78vh, 820px);
    max-height: none;
    overflow: hidden;
  }

  .source-panel .playlist-empty,
  .source-panel .playlist-entries {
    flex: 1;
  }

  .source-panel .playlist-entries {
    max-height: none;
  }
}

@media (max-width: 900px) {
  .source-mode-panel[data-source-panel="playlist"] {
    grid-template-columns: 1fr;
  }

  .source-mode-panel[data-source-panel="playlist"] .playlist-tools {
    grid-column: 1;
    grid-row: auto;
  }
}

@media (max-width: 620px) {
  .source-mode-tabs {
    grid-template-columns: 1fr;
  }

  .tools-grid,
  .library-panel .library-entries {
    grid-template-columns: 1fr;
  }

  .tools-panel .diagnostics-grid {
    grid-template-columns: 1fr;
  }
}