:root {
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #10131a;
  color: #edf1f7;
}

* { box-sizing: border-box; }
body { margin: 0; min-width: 0; background: radial-gradient(circle at top, #20283a, #10131a 52%); }
button, input, select, textarea { font: inherit; }
button { min-height: 42px; border: 1px solid #43516b; border-radius: 9px; padding: 0.6rem 0.9rem; color: #edf1f7; background: #252d3d; cursor: pointer; }
button:hover { border-color: #78a9ff; }
button.primary { border-color: #6d9eff; background: #3568c8; }
.app { width: min(960px, 100%); margin: 0 auto; padding: 1.25rem; }
.app-header { display: flex; align-items: end; justify-content: space-between; gap: 1rem; margin-bottom: 1rem; }
.site-nav-link { display: inline-block; margin-bottom: 0.45rem; color: #9cb9ef; font-size: 0.85rem; text-decoration: none; }
.site-nav-link:hover { text-decoration: underline; }
.brand-link { color: #9cb9ef; text-decoration: none; }
.brand-link:hover { text-decoration: underline; }
.test-release-badge { display: inline-block; margin-left: 0.35rem; vertical-align: middle; border: 1px solid #526789; border-radius: 999px; padding: 0.22rem 0.5rem; color: #c6d8ff; font-size: 0.42em; font-weight: 650; letter-spacing: 0.06em; text-transform: uppercase; }
.release-note { margin: 0.35rem 0 0; color: #8f9caf; font-size: 0.82rem; }
.eyebrow { margin: 0 0 0.3rem; color: #9cb9ef; font-size: 0.78rem; letter-spacing: 0.12em; text-transform: uppercase; }
h1, h2, p { margin-top: 0; }
h1 { margin-bottom: 0.35rem; font-size: clamp(1.65rem, 5vw, 2.4rem); }
h2 { margin-bottom: 0.8rem; font-size: 1.05rem; }
.subtitle, .section-heading p { margin-bottom: 0; color: #aeb9ca; }
.transport-buttons, .action-row { display: flex; flex-wrap: wrap; gap: 0.55rem; align-items: center; }
.transport-buttons .inline-control { display: flex; align-items: center; gap: 0.45rem; white-space: nowrap; }
.transport-buttons .inline-control select { width: auto; min-width: 120px; }
.transport-panel { padding: 0.7rem 0.9rem; }
.transport-buttons { width: 100%; }
.transport-buttons .playback-settings { margin-left: auto; }
.playback-settings summary { display: inline-block; cursor: pointer; border: 1px solid #43516b; border-radius: 8px; padding: 0.55rem 0.75rem; color: #d9e1ee; background: #252d3d; list-style: none; }
.playback-settings summary::-webkit-details-marker { display: none; }
.playback-settings summary::after { content: " ▾"; color: #aeb9ca; }
.playback-settings[open] summary::after { content: " ▴"; }
.playback-settings[open] { flex-basis: 100%; }
.playback-settings-body { margin-top: 0.7rem; border-top: 1px solid #2e394d; padding-top: 0.7rem; }
.settings-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0.7rem; }
.settings-grid label { min-width: 0; }
.compact-panel { margin-top: 0.7rem; border-top: 1px solid #2e394d; padding-top: 0.7rem; }
.compact-panel h2 { margin-bottom: 0.55rem; font-size: 0.9rem; }
.transport-status { display: flex; justify-content: space-between; gap: 1rem; margin-top: 0.55rem; border-top: 1px solid #2e394d; padding-top: 0.55rem; color: #aeb9ca; font-variant-numeric: tabular-nums; }
.transport-status output { overflow-wrap: anywhere; }
.transport-status output:first-child { color: #d9e1ee; font-weight: 650; }
.panel { margin: 0.9rem 0; padding: 1rem; border: 1px solid #2e394d; border-radius: 14px; background: rgba(25, 31, 43, 0.88); box-shadow: 0 12px 28px rgba(0, 0, 0, 0.16); }
.section-heading { display: flex; justify-content: space-between; align-items: start; gap: 1rem; }
.example-actions { display: flex; flex-wrap: wrap; align-items: end; gap: 0.55rem; }
.example-actions label { min-width: 180px; }
textarea { display: block; width: 100%; min-height: 245px; margin: 0.9rem 0; resize: vertical; border: 1px solid #43516b; border-radius: 9px; padding: 0.85rem; color: #edf1f7; background: #0c1017; font-family: "SFMono-Regular", Consolas, monospace; line-height: 1.45; }
#songWriterIdea { min-height: 4.5rem; margin-bottom: 0; }
.song-writer-primary { display: grid; grid-template-columns: minmax(150px, 0.7fr) minmax(260px, 2fr); gap: 0.9rem; align-items: start; }
.song-writer-panel details { margin-top: 0.9rem; border-top: 1px solid #2e394d; padding-top: 0.8rem; }
.song-writer-panel summary { color: #9cb9ef; cursor: pointer; font-weight: 650; }
.song-writer-summary { min-height: 1.25rem; margin: 0.7rem 0 0; color: #aeb9ca; font-variant-numeric: tabular-nums; }
textarea:focus, input:focus, select:focus, button:focus-visible { outline: 2px solid #78a9ff; outline-offset: 2px; }
.status { min-height: 1.25rem; color: #a8d6b4; }
.error { margin-top: 0.8rem; border-left: 3px solid #ff7d7d; padding: 0.7rem 0.8rem; color: #ffb5b5; background: rgba(130, 35, 45, 0.2); }
.song-info { padding: 0.7rem 0.9rem; }
.song-info h2 { display: inline; margin: 0 0.8rem 0 0; font-size: 0.9rem; }
.song-info dl { display: inline-flex; flex-wrap: wrap; gap: 0.35rem 1rem; margin: 0; vertical-align: baseline; }
.song-info dl div { display: inline-flex; gap: 0.3rem; align-items: baseline; padding: 0; background: transparent; }
dt { font-size: 0.75rem; }
dd { margin: 0; font-size: 0.88rem; }
dt { color: #aeb9ca; font-size: 0.8rem; }
dd { margin: 0.25rem 0 0; overflow-wrap: anywhere; font-weight: 650; }
.control-grid, .mix-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.9rem; }
.mix-grid { grid-template-columns: repeat(4, 1fr); }
label { display: grid; gap: 0.42rem; color: #d9e1ee; }
label > span { color: #aeb9ca; font-size: 0.85rem; }
input[type="number"], select { width: 100%; min-height: 42px; border: 1px solid #43516b; border-radius: 8px; padding: 0.55rem; color: #edf1f7; background: #111722; }
input[type="range"] { width: 100%; accent-color: #78a9ff; }
.mix-grid label > span { display: flex; justify-content: space-between; }
@media (max-width: 680px) {
  .app { padding: 0.8rem; }
  .app-header { align-items: start; flex-direction: column; }
  .transport-buttons { width: 100%; }
  .transport-buttons button { flex: 1; }
  .transport-buttons .playback-settings { margin-left: 0; }
  .settings-grid { grid-template-columns: 1fr 1fr; }
  .section-heading { flex-direction: column; }
  .example-actions, .example-actions label, .section-heading button { width: 100%; }
  .song-writer-primary { grid-template-columns: 1fr; }
  .song-info dl, .control-grid, .mix-grid { grid-template-columns: 1fr 1fr; }
  .song-info h2 { display: block; margin-bottom: 0.4rem; }
  .song-info dl { display: flex; }
}
@media (max-width: 400px) {
  .song-info dl, .control-grid, .mix-grid, .settings-grid { grid-template-columns: 1fr; }
}