:root {
  --bg: #f5f6f8;
  --surface: #ffffff;
  --surface-muted: #eef1f4;
  --border: #d9dee5;
  --text: #1f2933;
  --muted: #637083;
  --accent: #2563eb;
  --accent-strong: #1d4ed8;
  --success-bg: #e8f7ee;
  --success-text: #17643a;
  --error-bg: #fdecec;
  --error-text: #9f1d1d;
  --warning-bg: #fff5db;
  --warning-text: #7a5500;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 15px;
  letter-spacing: 0;
}

.sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  width: 240px;
  border-right: 1px solid var(--border);
  background: #101820;
  color: #ffffff;
  padding: 20px 14px;
}

.brand {
  padding: 0 10px 18px;
  font-size: 18px;
  font-weight: 700;
}

.source-nav {
  display: grid;
  gap: 4px;
}

.source-link {
  display: block;
  border-radius: 6px;
  padding: 10px;
  color: #d8dee7;
  text-decoration: none;
}

.source-link:hover,
.source-link.active {
  background: #263241;
  color: #ffffff;
}

.content {
  margin-left: 240px;
  padding: 28px;
}

.page-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  max-width: 1080px;
  margin-bottom: 18px;
}

h1,
h2 {
  margin: 0;
}

h1 {
  font-size: 28px;
  line-height: 1.2;
}

h2 {
  font-size: 18px;
}

p {
  margin: 8px 0 0;
  color: var(--muted);
}

.panel,
.album-view {
  max-width: 1080px;
  margin-bottom: 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  padding: 18px;
}

.form-row {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) 150px auto auto auto;
  gap: 12px;
  align-items: end;
  margin-top: 14px;
}

.field {
  display: grid;
  gap: 6px;
}

.field span {
  color: var(--muted);
  font-size: 13px;
}

input {
  width: 100%;
  height: 40px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #ffffff;
  color: var(--text);
  padding: 0 10px;
  font: inherit;
}

select {
  width: 100%;
  height: 40px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #ffffff;
  color: var(--text);
  padding: 0 10px;
  font: inherit;
}

input:focus,
select:focus {
  border-color: var(--accent);
  outline: 2px solid rgba(37, 99, 235, 0.16);
}

button {
  height: 40px;
  border: 0;
  border-radius: 6px;
  background: var(--accent);
  color: #ffffff;
  padding: 0 14px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

button:hover {
  background: var(--accent-strong);
}

.status-slot {
  margin-top: 12px;
}

.status {
  border-radius: 6px;
  padding: 10px 12px;
}

.status.success {
  background: var(--success-bg);
  color: var(--success-text);
}

.status.error {
  background: var(--error-bg);
  color: var(--error-text);
}

.status.warning {
  display: inline-block;
  margin-top: 12px;
  background: var(--warning-bg);
  color: var(--warning-text);
}

.loading {
  display: none;
  color: var(--muted);
}

.htmx-request .loading,
.loading.htmx-request {
  display: inline;
}

.result {
  max-width: 1080px;
}

.album-header {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 20px;
  align-items: end;
}

.cover {
  width: 180px;
  aspect-ratio: 1;
  overflow: hidden;
  border-radius: 8px;
  background: var(--surface-muted);
}

.cover img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.cover-placeholder {
  display: grid;
  width: 100%;
  height: 100%;
  place-items: center;
  color: var(--muted);
}

.eyebrow,
.muted,
.album-version,
.meta-line {
  color: var(--muted);
}

.eyebrow {
  margin-bottom: 6px;
  font-size: 13px;
  text-transform: uppercase;
}

.album-meta h2 {
  font-size: 30px;
  line-height: 1.15;
}

.album-version {
  margin-top: 4px;
}

.meta-line {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.meta-line span:not(:last-child)::after {
  content: "·";
  padding-left: 8px;
}

.track-list {
  margin-top: 22px;
  border-top: 1px solid var(--border);
}

.track-row {
  display: grid;
  grid-template-columns: 46px 33px minmax(180px, 1.5fr) minmax(160px, 1fr) 110px 100px;
  gap: 10px;
  align-items: center;
  min-height: 44px;
  border-bottom: 1px solid var(--border);
}

.track-head {
  min-height: 38px;
  color: var(--muted);
  font-size: 13px;
}

.track-title {
  font-weight: 600;
}

.track-version {
  color: #8b96a6;
  font-size: 13px;
  font-weight: 400;
}

.track-version::before {
  content: " (";
}

.track-version::after {
  content: ")";
}

.track-artists,
.track-duration,
.track-number {
  color: var(--muted);
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  border-radius: 999px;
  padding: 0 9px;
  font-size: 12px;
  font-weight: 600;
}

.badge.ok {
  background: var(--success-bg);
  color: var(--success-text);
}

.badge.muted {
  background: var(--surface-muted);
  color: var(--muted);
}

.track-play-button {
  display: inline-grid;
  place-items: center;
  border-radius: 999px;
  padding: 0;
}

.track-play-button {
  width: 22px;
  height: 22px;
  padding: 0;
  background: transparent;
  color: var(--muted);
  font-size: 11px;
}

.track-play-cell {
  display: grid;
  width: 33px;
  place-items: center;
}

.track-play-button:hover {
  background: var(--surface-muted);
  color: var(--text);
}

.player-bar {
  position: sticky;
  bottom: 0;
  display: grid;
  grid-template-columns: minmax(180px, 1fr) minmax(280px, 2fr);
  gap: 14px;
  align-items: center;
  margin-top: 18px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  padding: 12px;
  box-shadow: 0 8px 24px rgba(31, 41, 51, 0.08);
}

.player-title {
  font-weight: 700;
}

.player-bar audio {
  width: 100%;
  accent-color: var(--accent);
}

.player-time {
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-size: 12px;
}

@media (max-width: 760px) {
  .sidebar {
    position: static;
    width: auto;
    border-right: 0;
  }

  .content {
    margin-left: 0;
    padding: 18px;
  }

  .form-row,
  .album-header,
  .player-bar {
    grid-template-columns: 1fr;
  }

  .track-row {
    grid-template-columns: 34px 33px minmax(0, 1fr) 52px;
    gap: 8px;
  }

  .track-row > :nth-child(4),
  .track-row > :nth-child(6) {
    display: none;
  }

  .track-head {
    display: none;
  }

  .cover {
    width: min(100%, 220px);
  }
}