/* ── Design Tokens ─────────────────────────────────────────────────────────── */
:root {
  --bg:         #000080;
  --surface:    #c0c0c0;
  --elevated:   #d4d0c8;
  --border-lt:  #ffffff;
  --border-dk:  #808080;
  --border-dkk: #404040;
  --accent:     #000080;
  --accent-txt: #ffffff;
  --text:       #000000;
  --muted:      #444444;
  --link:       #0000ee;
  --visited:    #551a8b;
  --win-title:  #000080;
  --win-title-t:#ffffff;
}

/* ── Reset ─────────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; }

body {
  background-color: #008080;
  background-image:
    repeating-linear-gradient(
      45deg,
      transparent,
      transparent 2px,
      rgba(0,0,0,0.04) 2px,
      rgba(0,0,0,0.04) 4px
    );
  color: var(--text);
  font-family: "MS Sans Serif", "Tahoma", "Arial", sans-serif;
  font-size: 13px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.hidden { display: none !important; }

/* ── Win95 button mixin ────────────────────────────────────────────────────── */
.btn, button, input[type="button"] {
  font-family: "MS Sans Serif", "Tahoma", "Arial", sans-serif;
  font-size: 13px;
  background: var(--elevated);
  color: var(--text);
  border: none;
  border-top:    2px solid var(--border-lt);
  border-left:   2px solid var(--border-lt);
  border-right:  2px solid var(--border-dkk);
  border-bottom: 2px solid var(--border-dkk);
  padding: 4px 14px;
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
  white-space: nowrap;
}

button:hover {
  background: #d8d4cc;
}

button:active {
  border-top:    2px solid var(--border-dkk);
  border-left:   2px solid var(--border-dkk);
  border-right:  2px solid var(--border-lt);
  border-bottom: 2px solid var(--border-lt);
  transform: translateY(1px);
}

button:disabled {
  color: var(--border-dk);
  cursor: default;
}

/* ── Header / Taskbar ──────────────────────────────────────────────────────── */
#app-header {
  background: var(--elevated);
  border-bottom: 2px solid var(--border-dkk);
  display: flex;
  flex-direction: column;
}

#logo {
  padding: 4px 10px;
  font-size: 13px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0;
  text-transform: none;
  background: linear-gradient(to right, var(--win-title), #1084d0);
  color: var(--win-title-t);
  display: flex;
  align-items: center;
  gap: 6px;
}

#logo::before {
  content: "🎵";
  font-size: 14px;
}

/* Context banner */
#context-banner {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 10px;
  background: var(--elevated);
  border-bottom: 2px solid var(--border-dk);
  position: relative;
  overflow: visible;
}

#banner-bg { display: none; }

#banner-art {
  width: 40px;
  height: 40px;
  object-fit: cover;
  border-top:    2px solid var(--border-dkk);
  border-left:   2px solid var(--border-dkk);
  border-right:  2px solid var(--border-lt);
  border-bottom: 2px solid var(--border-lt);
  flex-shrink: 0;
  background: var(--surface);
}

#banner-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 1px;
}

#banner-album {
  font-weight: 700;
  font-size: 13px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

#banner-artist {
  font-size: 12px;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

#banner-back-btn {
  font-size: 12px;
  padding: 3px 10px;
}

/* ── Panel / Window helper ─────────────────────────────────────────────────── */
.panel {
  background: var(--surface);
  border-top:    2px solid var(--border-lt);
  border-left:   2px solid var(--border-lt);
  border-right:  2px solid var(--border-dkk);
  border-bottom: 2px solid var(--border-dkk);
  padding: 12px;
}

.panel-title {
  background: linear-gradient(to right, var(--win-title), #1084d0);
  color: var(--win-title-t);
  font-weight: 700;
  font-size: 13px;
  padding: 3px 6px;
  margin: -12px -12px 12px -12px;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ── Main ──────────────────────────────────────────────────────────────────── */
main {
  flex: 1;
  padding: 16px;
  max-width: 1100px;
  margin: 0 auto;
  width: 100%;
}

/* ── Search View ───────────────────────────────────────────────────────────── */
#search-hero {
  background: var(--surface);
  border-top:    2px solid var(--border-lt);
  border-left:   2px solid var(--border-lt);
  border-right:  2px solid var(--border-dkk);
  border-bottom: 2px solid var(--border-dkk);
  margin-bottom: 14px;
  padding: 0;
}

#search-hero::before {
  content: "Album Ranker v1.0";
  display: block;
  background: linear-gradient(to right, var(--win-title), #1084d0);
  color: var(--win-title-t);
  font-weight: 700;
  padding: 3px 8px;
  font-size: 13px;
}

#search-hero > h1,
#search-hero > p,
#search-modes,
#search-box,
#search-status {
  margin-left: 12px;
  margin-right: 12px;
}

#search-modes {
  display: flex;
  gap: 16px;
  margin-bottom: 8px;
  font-size: 12px;
}

#search-modes label {
  display: flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
}

#search-modes input[type="radio"] {
  cursor: pointer;
  margin: 0;
}

#search-hero h1 {
  font-size: 16px;
  font-weight: 700;
  margin-top: 14px;
  margin-bottom: 4px;
  letter-spacing: 0;
}

#search-hero p {
  color: var(--muted);
  font-size: 12px;
  margin-bottom: 10px;
}

#search-box {
  display: flex;
  gap: 6px;
  max-width: 460px;
  margin-bottom: 8px;
}

#search-input {
  flex: 1;
  background: #ffffff;
  border-top:    2px solid var(--border-dkk);
  border-left:   2px solid var(--border-dkk);
  border-right:  2px solid var(--border-lt);
  border-bottom: 2px solid var(--border-lt);
  color: var(--text);
  padding: 4px 8px;
  font-family: "MS Sans Serif", "Tahoma", "Arial", sans-serif;
  font-size: 13px;
  outline: none;
}

#search-input::placeholder { color: #888; }

#search-status {
  font-size: 12px;
  color: var(--muted);
  min-height: 1.4em;
  margin-bottom: 10px;
}

/* Album grid */
#album-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 10px;
  padding-top: 2px;
}

.album-card {
  background: var(--surface);
  border-top:    2px solid var(--border-lt);
  border-left:   2px solid var(--border-lt);
  border-right:  2px solid var(--border-dkk);
  border-bottom: 2px solid var(--border-dkk);
  overflow: hidden;
  cursor: pointer;
}

.album-card:hover {
  background: #d0e8ff;
}

.album-card:active {
  border-top:    2px solid var(--border-dkk);
  border-left:   2px solid var(--border-dkk);
  border-right:  2px solid var(--border-lt);
  border-bottom: 2px solid var(--border-lt);
}

.album-card img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  display: block;
  background: #888;
  border-bottom: 1px solid var(--border-dk);
}

.album-card-info {
  padding: 6px 8px 8px;
}

.album-card-title {
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 2px;
}

.album-card-artist {
  font-size: 11px;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 1px;
}

.album-card-year {
  font-size: 11px;
  color: #666;
}

/* Artist grid */
.artist-card {
  background: var(--surface);
  border-top:    2px solid var(--border-lt);
  border-left:   2px solid var(--border-lt);
  border-right:  2px solid var(--border-dkk);
  border-bottom: 2px solid var(--border-dkk);
  padding: 0 0 8px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  text-align: center;
  overflow: hidden;
}

.artist-card:hover { background: #d0e8ff; }

.artist-card:active {
  border-top:    2px solid var(--border-dkk);
  border-left:   2px solid var(--border-dkk);
  border-right:  2px solid var(--border-lt);
  border-bottom: 2px solid var(--border-lt);
}

.artist-card-img {
  width: 100%;
  aspect-ratio: 1;
  background: var(--elevated);
  border-bottom: 1px solid var(--border-dk);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

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

.artist-card-placeholder {
  font-size: 28px;
  color: var(--muted);
}

.artist-card-name {
  font-size: 12px;
  font-weight: 700;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 120px;
  padding: 0 8px;
}

.artist-card-genre {
  font-size: 11px;
  color: var(--muted);
  padding: 0 8px;
}

#artist-back-btn {
  margin-top: 6px;
  font-size: 11px;
  padding: 2px 10px;
}

/* ── Album View ────────────────────────────────────────────────────────────── */
#album-detail {
  display: flex;
  gap: 16px;
  padding: 0;
  margin-bottom: 14px;
  align-items: flex-start;
}

#album-art-large {
  width: 180px;
  height: 180px;
  object-fit: cover;
  flex-shrink: 0;
  background: #888;
  border-top:    2px solid var(--border-dkk);
  border-left:   2px solid var(--border-dkk);
  border-right:  2px solid var(--border-lt);
  border-bottom: 2px solid var(--border-lt);
}

#album-meta {
  flex: 1;
  min-width: 0;
  background: var(--surface);
  border-top:    2px solid var(--border-lt);
  border-left:   2px solid var(--border-lt);
  border-right:  2px solid var(--border-dkk);
  border-bottom: 2px solid var(--border-dkk);
  padding: 0;
}

#album-meta::before {
  content: "Album Info";
  display: block;
  background: linear-gradient(to right, var(--win-title), #1084d0);
  color: var(--win-title-t);
  font-weight: 700;
  padding: 3px 8px;
  font-size: 13px;
  margin-bottom: 10px;
}

#album-title,
#album-artist,
#album-sub,
#album-warning,
#start-ranking-btn {
  margin-left: 10px;
  margin-right: 10px;
}

#album-title {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0;
  margin-bottom: 4px;
}

#album-artist {
  font-size: 13px;
  font-weight: 400;
  color: var(--muted);
  margin-bottom: 4px;
}

#album-sub {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 10px;
}

#album-warning {
  background: #ffff99;
  border: 1px solid #999900;
  color: #444400;
  padding: 6px 10px;
  font-size: 12px;
  margin-bottom: 10px;
}

#start-ranking-btn {
  margin-bottom: 12px;
  font-weight: 700;
}

/* Tracklist section */
#tracklist-section {
  background: var(--surface);
  border-top:    2px solid var(--border-lt);
  border-left:   2px solid var(--border-lt);
  border-right:  2px solid var(--border-dkk);
  border-bottom: 2px solid var(--border-dkk);
  padding: 0;
}

#tracklist-section h3 {
  background: linear-gradient(to right, var(--win-title), #1084d0);
  color: var(--win-title-t);
  font-weight: 700;
  padding: 3px 8px;
  font-size: 13px;
  letter-spacing: 0;
  text-transform: none;
  border: none;
  margin: 0 0 0 0;
}

#tracklist {
  list-style: none;
  counter-reset: track;
  padding: 4px 0;
}

#tracklist li {
  counter-increment: track;
  display: flex;
  align-items: center;
  padding: 3px 10px;
  gap: 12px;
  font-size: 12px;
  border-bottom: 1px solid var(--border-dk);
}

#tracklist li:last-child { border-bottom: none; }

#tracklist li:hover { background: #000080; color: #fff; }
#tracklist li:hover .tl-dur { color: #ccc; }

#tracklist li::before {
  content: counter(track);
  color: var(--muted);
  font-size: 11px;
  min-width: 18px;
  text-align: right;
}

#tracklist li:hover::before { color: #ccc; }

.tl-name { flex: 1; }
.tl-dur  { color: var(--muted); font-size: 11px; font-variant-numeric: tabular-nums; }

/* ── Ranking View ──────────────────────────────────────────────────────────── */
#ranking-header {
  background: var(--surface);
  border-top:    2px solid var(--border-lt);
  border-left:   2px solid var(--border-lt);
  border-right:  2px solid var(--border-dkk);
  border-bottom: 2px solid var(--border-dkk);
  margin-bottom: 12px;
  padding: 0;
}

#ranking-header::before {
  content: "Head-to-Head Comparison";
  display: block;
  background: linear-gradient(to right, var(--win-title), #1084d0);
  color: var(--win-title-t);
  font-weight: 700;
  padding: 3px 8px;
  font-size: 13px;
}

#ranking-prompt {
  font-size: 13px;
  color: var(--text);
  text-transform: none;
  letter-spacing: 0;
  padding: 8px 12px 4px;
  font-weight: 700;
}

#progress-wrap {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 0 12px 10px;
}

#progress-text {
  font-size: 11px;
  color: var(--muted);
}

#progress-bar-track {
  width: 100%;
  height: 16px;
  background: #fff;
  border-top:    2px solid var(--border-dkk);
  border-left:   2px solid var(--border-dkk);
  border-right:  2px solid var(--border-lt);
  border-bottom: 2px solid var(--border-lt);
  overflow: hidden;
}

#progress-bar-fill {
  height: 100%;
  background: repeating-linear-gradient(
    90deg,
    #000080 0px,
    #000080 8px,
    #1084d0 8px,
    #1084d0 16px
  );
  width: 0%;
  transition: width 0.3s ease;
}

#comparison-area {
  display: flex;
  align-items: stretch;
  gap: 12px;
  max-width: 800px;
  margin: 0 auto;
}

.song-card {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 40px 20px;
  background: var(--surface);
  border-top:    2px solid var(--border-lt);
  border-left:   2px solid var(--border-lt);
  border-right:  2px solid var(--border-dkk);
  border-bottom: 2px solid var(--border-dkk);
  cursor: pointer;
  text-align: center;
  color: var(--text);
  font-family: "MS Sans Serif", "Tahoma", "Arial", sans-serif;
  user-select: none;
  -webkit-user-select: none;
  /* reset button defaults */
  border-radius: 0;
  transition: none;
}

.song-card:hover {
  background: #d0e8ff;
  transform: none;
  box-shadow: none;
}

.song-card:active {
  border-top:    2px solid var(--border-dkk);
  border-left:   2px solid var(--border-dkk);
  border-right:  2px solid var(--border-lt);
  border-bottom: 2px solid var(--border-lt);
  transform: translateY(1px);
}

.song-card.chosen {
  background: #000080;
  color: #ffffff;
  border-top:    2px solid var(--border-dkk);
  border-left:   2px solid var(--border-dkk);
  border-right:  2px solid var(--border-lt);
  border-bottom: 2px solid var(--border-lt);
  transform: translateY(1px);
}

.song-card.chosen .card-num,
.song-card.chosen .card-dur {
  color: #aac8ff;
}

.card-num {
  font-size: 11px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.card-title {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-dur {
  font-size: 11px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

#vs-divider {
  display: flex;
  align-items: center;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #ffffff;
  flex-shrink: 0;
  text-shadow: 1px 1px 0 #000;
}

/* ── Results View ──────────────────────────────────────────────────────────── */
#results-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  gap: 12px;
  flex-wrap: wrap;
  background: linear-gradient(to right, var(--win-title), #1084d0);
  padding: 4px 10px;
}

#results-header h2 {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0;
  color: #ffffff;
}

#results-actions {
  display: flex;
  gap: 6px;
}

#results-actions button {
  font-size: 12px;
  padding: 3px 10px;
}

#results-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0;
  background: var(--surface);
  border-top:    2px solid var(--border-lt);
  border-left:   2px solid var(--border-lt);
  border-right:  2px solid var(--border-dkk);
  border-bottom: 2px solid var(--border-dkk);
}

.result-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 4px 10px;
  border-bottom: 1px solid var(--border-dk);
  font-size: 13px;
  transition: none;
}

.result-item:last-child { border-bottom: none; }

.result-item:hover {
  background: #000080;
  color: #ffffff;
}

.result-item:hover .result-dur { color: #aac8ff; }
.result-item:hover .result-rank { color: #ffffff; }

.result-rank {
  font-size: 12px;
  font-weight: 700;
  color: var(--muted);
  min-width: 24px;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.result-item:nth-child(1) .result-rank { color: #886600; font-weight: 700; }
.result-item:nth-child(2) .result-rank { color: #606060; }
.result-item:nth-child(3) .result-rank { color: #7a4400; }

.result-title {
  flex: 1;
  font-size: 13px;
  font-weight: 400;
}

.result-dur {
  font-size: 11px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

/* ── Spotify Export ────────────────────────────────────────────────────────── */
#export-spotify-btn { color: #006400; font-weight: 700; }
#export-spotify-btn:disabled { color: var(--border-dk); }

#spotify-status {
  background: var(--surface);
  border-top:    2px solid var(--border-lt);
  border-left:   2px solid var(--border-lt);
  border-right:  2px solid var(--border-dkk);
  border-bottom: 2px solid var(--border-dkk);
  padding: 0;
  margin-bottom: 10px;
  font-size: 12px;
}

#spotify-status-title {
  background: linear-gradient(to right, var(--win-title), #1084d0);
  color: var(--win-title-t);
  font-weight: 700;
  padding: 3px 8px;
  font-size: 13px;
}

#spotify-status-body {
  padding: 8px 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

#spotify-progress-track {
  width: 100%;
  height: 16px;
  background: #fff;
  overflow: hidden;
  border-top:    2px solid var(--border-dkk);
  border-left:   2px solid var(--border-dkk);
  border-right:  2px solid var(--border-lt);
  border-bottom: 2px solid var(--border-lt);
}

#spotify-progress-fill {
  height: 100%;
  width: 0%;
  transition: width 0.3s ease;
  background: repeating-linear-gradient(
    90deg,
    #006400 0px, #006400 8px,
    #22a022 8px, #22a022 16px
  );
}

#spotify-playlist-link {
  color: var(--link);
  font-weight: 700;
  text-decoration: underline;
  cursor: pointer;
}

#spotify-playlist-link:hover { color: var(--accent); }

.spotify-error {
  background: #ffdddd;
  border: 1px solid #cc0000;
  color: #660000;
  padding: 6px 8px;
}

/* ── Mobile ────────────────────────────────────────────────────────────────── */
@media (max-width: 640px) {
  main { padding: 10px; }

  #album-detail {
    flex-direction: column;
    align-items: center;
  }

  #album-art-large { width: 140px; height: 140px; }

  #comparison-area {
    flex-direction: column;
    gap: 8px;
  }

  .song-card { padding: 28px 16px; }

  #vs-divider { align-self: center; }

  #results-header {
    flex-direction: column;
    align-items: flex-start;
  }
}