:root {
  color-scheme: dark;
  --accent: var(--amber);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text-primary);
  background: var(--bg-base);
}

button, .button {
  display: inline-block;
  padding: var(--space-3) var(--space-4);
  color: var(--text-primary);
  background: var(--bg-raised);
  border: 1px solid var(--border-default);
  border-radius: 4px;
  font: inherit;
  text-decoration: none;
  cursor: pointer;
}

[hidden] { display: none !important; }

button:hover, button:focus-visible, .button:hover, .button:focus-visible {
  border-color: var(--accent);
  outline: 1px solid var(--accent);
  outline-offset: 1px;
}

.primary {
  color: var(--text-inverse);
  background: var(--accent);
  border-color: var(--accent);
}

.eyebrow, .identity, small {
  color: var(--text-tertiary);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  color: var(--accent);
  font-size: clamp(3rem, 9vw, 7rem);
}

.wordmark { color: inherit; text-decoration: none; }
.wordmark:hover h1, .wordmark:focus-visible h1 { text-decoration: underline; }
.wordmark:focus-visible { outline: 1px solid var(--accent); outline-offset: 3px; }

h2 { margin: var(--space-2) 0; }

.gate {
  display: grid;
  place-items: start;
  align-content: center;
  gap: var(--space-4);
  width: min(720px, calc(100% - 2 * var(--space-6)));
  min-height: 100vh;
  margin: auto;
}

.gate p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 1.3rem;
}

.gate small {
  max-width: 560px;
  line-height: 1.6;
  text-transform: none;
}

.masthead {
  border-bottom: 1px solid var(--border-default);
}
.masthead-inner {
  display: flex;
  justify-content: space-between;
  align-items: end;
  width: 100%;
  max-width: 1800px;
  margin: 0 auto;
  padding: var(--space-5) var(--space-6);
}

.masthead h1 { font-size: 2.8rem; }
.masthead form, .header-actions { display: flex; align-items: center; gap: var(--space-3); }

.runtime-strip {
  border-bottom: 1px solid var(--border-default);
}
.runtime-strip-inner {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-5);
  width: 100%;
  max-width: 1800px;
  margin: 0 auto;
  padding: var(--space-2) var(--space-6);
  color: var(--text-tertiary);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.runtime-strip strong { color: var(--text-secondary); font-weight: 500; }

.workspace {
  display: grid;
  grid-template-columns: minmax(280px, 440px) minmax(360px, 1fr);
  gap: var(--space-7);
  width: 100%;
  max-width: 1800px;
  margin: 0 auto;
  padding: var(--space-7) var(--space-6);
}
.welcome { max-width: 720px; }
.welcome p { color: var(--text-secondary); line-height: 1.6; }

.intake-card, .catalog-card, .status-card {
  padding: var(--space-6);
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: 6px;
}

.upload-form { display: grid; gap: var(--space-4); margin-top: var(--space-5); }
.upload-form label { display: grid; gap: var(--space-2); color: var(--text-secondary); }
.upload-form input, .upload-form select {
  width: 100%;
  padding: var(--space-3);
  color: var(--text-primary);
  background: var(--bg-base);
  border: 1px solid var(--border-default);
  border-radius: 4px;
  font: inherit;
}
.upload-form input:focus, .upload-form select:focus {
  border-color: var(--accent);
  outline: 1px solid var(--accent);
}
.upload-options summary { color: var(--text-secondary); cursor: pointer; }
.upload-options label { margin-top: var(--space-3); }
.upload-form progress { width: 100%; accent-color: var(--accent); }
.upload-status { min-height: 1.4em; color: var(--text-secondary); }

.session-list { display: grid; margin-top: var(--space-5); }
.catalog-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: var(--space-4);
}
.manage-link { font-size: 0.86rem; }
.catalog-tabs { display: flex; align-items: center; gap: var(--space-3); }
.catalog-tabs a { color: var(--text-secondary); }
.catalog-tabs a[aria-current="page"] { color: var(--accent); }
.catalog-exit { margin-left: var(--space-3); }
.management-toolbar {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: var(--space-4);
  margin-top: var(--space-4);
}
.management-guide {
  max-width: 620px;
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.88rem;
}
.bulk-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
  justify-content: end;
}
.bulk-actions #catalog-status { color: var(--text-secondary); font-size: 0.88rem; }
.danger-action { color: var(--neg); }
.session-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4) 0;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-default);
  text-decoration: none;
}
.session-row:first-child { border-top: 1px solid var(--border-default); }
.session-identity { flex: 1; min-width: 0; color: inherit; text-decoration: none; }
.session-identity > span { display: grid; gap: var(--space-1); }
.session-identity:hover strong { color: var(--accent); }
.session-row small { text-transform: none; }
.management-row { display: grid; grid-template-columns: minmax(0, 1fr) auto auto; }
.session-management-controls {
  display: flex;
  align-items: end;
  gap: var(--space-3);
}
.session-select { width: 1rem; height: 1rem; accent-color: var(--accent); }
.session-selection {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  min-height: 2.5rem;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.session-kind-control { display: grid; gap: var(--space-1); }
.session-kind-control > span {
  color: var(--text-tertiary);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.session-kind {
  padding: var(--space-2);
  color: var(--text-primary);
  background: var(--bg-raised);
  border: 1px solid var(--border-default);
  border-radius: 4px;
  font: inherit;
}
.empty { color: var(--text-secondary); }

.state {
  padding: var(--space-1) var(--space-2);
  color: var(--accent);
  border: 1px solid color-mix(in srgb, var(--accent) 45%, transparent);
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.state-failed, .error-message { color: var(--neg); }
.status-workspace { display: block; }
.status-card { max-width: 980px; }
.status-line { display: flex; align-items: center; gap: var(--space-3); color: var(--text-secondary); }
.status-card p { color: var(--text-secondary); }
.lifecycle-banner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
  padding: var(--space-4);
  color: var(--text-secondary);
  background: var(--bg-raised);
  border: 1px solid var(--border-default);
  border-radius: 4px;
}
.lifecycle-banner strong { color: var(--text-primary); text-transform: capitalize; }
.lifecycle-banner.visibility-active { display: none; }
.session-actions { margin-top: var(--space-4); }
.quiet-link { color: var(--text-secondary); }
.quiet-link:hover, .quiet-link:focus-visible { color: var(--accent); }
.downloads { display: grid; gap: var(--space-7); margin-top: var(--space-7); }
.downloads h3 { margin: var(--space-1) 0; font-size: 1.25rem; }
.download-hero {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-5);
  padding: var(--space-5);
  background: color-mix(in srgb, var(--accent) 7%, var(--bg-raised));
  border: 1px solid color-mix(in srgb, var(--accent) 45%, var(--border-default));
  border-radius: 6px;
}
.download-hero p { margin: var(--space-2) 0 0; }
.individual-downloads { display: grid; gap: var(--space-3); }
.song-list { border-top: 1px solid var(--border-default); }
.song-download {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) minmax(360px, auto);
  align-items: center;
  column-gap: var(--space-5);
  row-gap: var(--space-2);
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--border-default);
}
.song-identity {
  display: grid;
  grid-template-columns: 2.5rem minmax(0, 1fr) auto;
  align-items: baseline;
  gap: var(--space-3);
}
.song-number { color: var(--text-tertiary); font-family: var(--font-mono); }
.song-identity small { letter-spacing: 0; text-transform: none; }
.song-actions { display: flex; align-items: start; justify-content: end; gap: var(--space-3); }
.song-actions .button, .song-actions button { white-space: nowrap; }
.practice-actions {
  display: grid;
  grid-template-columns: minmax(170px, 1fr) auto;
  gap: var(--space-2);
  min-width: 370px;
}
.practice-actions select {
  padding: var(--space-3);
  color: var(--text-primary);
  background: var(--bg-raised);
  border: 1px solid var(--border-default);
  border-radius: 4px;
  font: inherit;
}
.practice-actions select:focus { border-color: var(--accent); outline: 1px solid var(--accent); }
.practice-status {
  grid-column: 1 / -1;
  color: var(--text-secondary);
  font-size: 0.88rem;
}
.practice-status:empty { display: none; }

@media (max-width: 820px) {
  .masthead-inner { align-items: start; gap: var(--space-4); }
  .header-actions { align-items: end; flex-direction: column-reverse; }
  .workspace { grid-template-columns: 1fr; padding: var(--space-5); }
  .runtime-strip-inner { padding-inline: var(--space-5); }
  .download-hero { align-items: stretch; flex-direction: column; }
  .song-download { grid-template-columns: 1fr; gap: var(--space-3); }
  .song-actions { justify-content: start; flex-wrap: wrap; }
  .practice-actions { min-width: min(100%, 370px); }
  .catalog-heading { align-items: start; flex-direction: column; }
  .catalog-tabs { align-items: start; flex-wrap: wrap; }
  .catalog-exit { width: 100%; margin-left: 0; }
  .management-toolbar { align-items: stretch; flex-direction: column; }
  .bulk-actions { justify-content: start; }
  .management-row { grid-template-columns: minmax(0, 1fr) auto; }
  .management-row .state { display: none; }
  .session-management-controls { grid-column: 1 / -1; width: 100%; }
  .session-kind-control { flex: 1; }
  .session-kind { width: 100%; }
  .lifecycle-banner { align-items: stretch; flex-direction: column; }
}