:root {
  --bg-color: #ffffff;
  --text-color: #121212;
  --border-color: #141414;
  --bg: var(--bg-color);
  --surface: #f5f5f5;
  --surface-2: #ededed;
  --text: var(--text-color);
  --text-dim: #6e6e6e;
  --accent: var(--text-color);
  --accent-text: var(--bg-color);
  --accent-dark: #000000;
  --amber: #b58900;
  --success: #1a7a3a;
  --danger: #c0392b;
  --radius: 14px;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: "Helvetica Neue", Helvetica, Arial, sans-serif;
  --border-subtle: #d9d9d9;
}

[data-theme="dark"] {
  --bg-color: #1f1f1f;
  --text-color: #f2f2f2;
  --border-color: #f2f2f2;
  --bg: var(--bg-color);
  --surface: #2a2a2a;
  --surface-2: #343434;
  --text: var(--text-color);
  --text-dim: #a8a8a8;
  --accent: var(--text-color);
  --accent-text: var(--bg-color);
  --accent-dark: #ffffff;
  --amber: #f2b84b;
  --success: #6fcf97;
  --danger: #e2574c;
  --border-subtle: #3a3a3a;
}

* { box-sizing: border-box; }
html { text-size-adjust: none; -webkit-text-size-adjust: none; }
button { touch-action: manipulation; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  min-height: 100vh;
  transition: background-color 0.25s ease, color 0.25s ease;
}

.navbar {
  width: 100%;
  padding: 20px 50px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: fixed;
  top: 0;
  left: 0;
  background: var(--bg);
  z-index: 100;
  transition: background-color 0.25s ease;
}
.nav-title-link { color: var(--text-color); text-decoration: none; }
.nav-title { font-family: var(--font-display); font-weight: 700; font-size: 22px; letter-spacing: -0.02em; }
.nav-right { display: flex; align-items: center; gap: 16px; }

.theme-toggle { position: relative; display: inline-flex; align-items: center; cursor: pointer; }
.theme-toggle input { position: absolute; opacity: 0; width: 0; height: 0; }
.toggle-track {
  width: 42px; height: 22px;
  border: 2px solid var(--border-color);
  border-radius: 50px;
  position: relative;
  transition: border-color 0.25s ease;
}
.toggle-thumb {
  position: absolute; top: 2px; left: 2px; width: 14px; height: 14px;
  background-color: var(--text-color); border-radius: 50%;
  transition: transform 0.25s ease, background-color 0.25s ease;
}
.theme-toggle input:checked + .toggle-track .toggle-thumb { transform: translateX(20px); }

.app { max-width: 640px; margin: 0 auto; padding: 100px 40px 70px; }
.tagline {
  text-align:center;
  color:var(--text-dim);
  font-size:16px;
  margin:0 0 16px;
  font-weight:500;
}

.screen { display: none; }
.screen.active { display: block; }

.card {
  background: var(--surface);
  border: 2px solid var(--border-color);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 20px;
  box-shadow: 6px 6px 0 var(--border-color);
  transition: background-color 0.25s ease, border-color 0.25s ease;
  overflow: visible;
}

label {
  display: block; font-size: 13px; color: var(--text-dim);
  font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em;
}
.field {
  display:flex;
  flex-direction:column;
  gap:10px;
  margin-bottom:16px;
}

.artist-row { display: flex; gap: 8px; margin-bottom: 10px; align-items: center; }
.artist-combo { position: relative; flex: 1; display: flex; align-items: center; }
.artist-combo.has-avatar .artist-input { padding-left: 44px; }
.artist-combo:not(.has-avatar) .artist-input { padding-left: 36px; }
.artist-avatar {
  position: absolute; left: 8px; width: 30px; height: 30px; border-radius: 50%;
  object-fit: cover; border: 2px solid var(--border-color); display: none;
}
.artist-combo.has-avatar .artist-avatar { display: block; }
.search-icon {
  position: absolute; left: 16px; color: var(--text-dim); font-size: 16px;
  pointer-events: none; font-weight: 700;
}
.artist-combo.has-avatar .search-icon { display: none; }

.artist-suggestions, .song-suggestions {
  position: absolute; top: calc(100% + 6px); left: 0; right: 0;
  background: var(--surface); border: 2px solid var(--border-color); border-radius: 12px;
  max-height: 260px; overflow-y: auto; z-index: 20; list-style: none; margin: 0; padding: 6px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}
[data-theme="dark"] .artist-suggestions, [data-theme="dark"] .song-suggestions { box-shadow: 0 8px 24px rgba(0,0,0,0.4); }
.artist-suggestions[hidden], .song-suggestions[hidden] { display: none; }

.suggestion-item {
  display: flex; align-items: center; gap: 12px; padding: 10px 12px; border-radius: 10px;
  cursor: pointer; font-size: 14px; background: var(--surface); border: 2px solid transparent;
  margin-bottom: 6px; transition: border-color 0.15s, background 0.15s;
}
.suggestion-item:last-child { margin-bottom: 0; }
.suggestion-artwork {
  width: 42px; height: 42px; border-radius: 50%; object-fit: cover; flex-shrink: 0;
  border: 2px solid var(--border-subtle); background: var(--surface-2);
}
.suggestion-item.song .suggestion-artwork { border-radius: 8px; }
.art-fallback { display: flex; align-items: center; justify-content: center; color: var(--text-dim); font-weight: 700; font-size: 13px; }
.suggestion-meta { flex: 1; min-width: 0; }
.suggestion-name {
  font-weight: 700; font-family: var(--font-display); font-size: 14px; letter-spacing: 0.02em;
  text-transform: uppercase; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.suggestion-item.song .suggestion-name { text-transform: none; }
.suggestion-genre {
  display: block; color: var(--text-dim); font-size: 11px; margin-top: 1px;
  text-transform: uppercase; letter-spacing: 0.05em; font-weight: 600;
}
.suggestion-play {
  flex-shrink: 0; background: #ffe066; color: #121212; border: 2px solid #121212;
  border-radius: 50px; padding: 4px 12px; font-size: 11px; font-weight: 800;
  letter-spacing: 0.05em; font-family: var(--font-display);
}
[data-theme="dark"] .suggestion-play { background: #ffe066; color: #121212; border-color: #f2f2f2; }

input[type=text], input[type=number] {
  width: 100%; background: var(--surface-2); border: 2px solid var(--border-color); color: var(--text);
  border-radius: 50px; padding: 12px 16px; font-size: 16px; font-family: var(--font-body);
  transition: border-color 0.2s, background 0.2s;
}
input[type=text]:focus, input[type=number]:focus { outline: none; border-color: var(--text-color); background: var(--surface); }

.stepper {
  display: flex; align-items: center; border: 2px solid var(--border-color);
  border-radius: 50px; background: var(--surface-2); overflow: hidden;
}
.stepper input[type=number] {
  border: none; background: transparent; border-radius: 0; text-align: center;
  width: 100%; -moz-appearance: textfield;
}
.stepper input[type=number]::-webkit-outer-spin-button,
.stepper input[type=number]::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.stepper-btn {
  width: 44px; height: 44px; flex-shrink: 0; border: none; background: transparent;
  color: var(--text); font-size: 18px; font-weight: 700; cursor: pointer; font-family: var(--font-display);
}
.stepper-btn:active { background: var(--border-subtle); }

.icon-btn {
  background: var(--surface-2); border: 2px solid var(--border-color); color: var(--text-dim);
  border-radius: 50px; width: 44px; height: 44px; flex-shrink: 0; cursor: pointer; font-size: 18px;
  line-height: 1; display: flex; align-items: center; justify-content: center; transition: all 0.2s;
}

.add-artist {
  background: none; border: 2px dashed var(--border-color); color: var(--text-dim);
  border-radius: 50px; padding: 10px 14px; font-size: 14px; cursor: pointer; width: 100%;
  font-weight: 600; transition: all 0.2s;
}
.add-artist:disabled { opacity: 0.6; cursor: default; }
.add-artist:disabled:hover { color: var(--text-dim); border-color: var(--border-color); }

.mode-row, .diff-row { display: flex; gap: 10px; }
.mode-btn, .diff-btn {
  flex: 1; background: var(--surface-2); border: 2px solid var(--border-color); color: var(--text-dim);
  border-radius: 50px; padding: 12px 8px; font-size: 14px; font-weight: 700; cursor: pointer;
  text-align: center; transition: all 0.15s; font-family: var(--font-body);
  box-shadow: 3px 3px 0 var(--border-color);
}
.difficulty-desc {
  display:flex;          
  align-items:center;
  justify-content:center;
  text-align:center;
  font-size:12px;
  color:var(--text-dim);
  min-height:32px;       
  margin:0;            
  line-height:1.4;
}
.mode-btn.active, .diff-btn.active {
  background: var(--text-color); border-color: var(--border-color); color: var(--bg-color);
  box-shadow: 1px 1px 0 var(--border-color); transform: translate(2px, 2px);
}

.primary-btn {
  width: 100%; background: var(--text-color); color: var(--bg-color); border: 2px solid var(--border-color);
  border-radius: 50px; padding: 14px 20px; font-size: 16px; font-weight: 700; cursor: pointer;
  font-family: var(--font-display); display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  box-shadow: 4px 4px 0 var(--border-color); transition: transform 0.12s, box-shadow 0.12s;
}
.primary-btn:active { transform: translate(2px, 2px); box-shadow: 1px 1px 0 var(--border-color); }
.primary-btn:disabled {
  background: var(--surface-2); color: var(--text-dim); border-color: var(--border-subtle);
  cursor: default; box-shadow: none; transform: none;
}

.secondary-btn {
  background: transparent; color: var(--text-color); border: 2px solid var(--border-color);
  border-radius: 50px; padding: 10px 18px; font-size: 14px; font-weight: 700; cursor: pointer;
  box-shadow: 3px 3px 0 var(--border-color); transition: transform 0.12s, box-shadow 0.12s, background 0.15s, color 0.15s;
}
.secondary-btn:active { transform: translate(2px, 2px); box-shadow: 1px 1px 0 var(--border-color); }

.back-btn {
  background: transparent; color: var(--text-color); border: 2px solid var(--border-color);
  border-radius: 50px; padding: 6px 14px; font-size: 13px; font-weight: 700; cursor: pointer;
  box-shadow: 2px 2px 0 var(--border-color); transition: transform 0.12s, box-shadow 0.12s, background 0.15s, color 0.15s;
}
.back-btn:active { transform: translate(1px, 1px); box-shadow: 1px 1px 0 var(--border-color); }

.error-text { color: var(--danger); font-size: 13px; margin-top: 8px; display: none; font-weight: 600; }
#retry-btn { margin-top: 10px; }
.status-text { color: var(--text-dim); font-size: 13px; margin-top: 14px; display: none; font-weight: 500; }
.status-text.show, .error-text.show { display: block; }

.game-header-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 18px; flex-wrap: wrap; }
.game-top { display: flex; gap: 10px; align-items: center; }
.pill {
  background: var(--surface); border: 2px solid var(--border-color); border-radius: 50px;
  padding: 6px 14px; font-size: 13px; color: var(--text-dim); font-weight: 600;
}
.pill b { color: var(--text); }

.disc-wrap { display: flex; justify-content: center; margin: 10px 0 22px; }
.disc {
  width: 150px; height: 150px; border-radius: 50%;
  background:
    radial-gradient(circle at center, var(--surface) 0 22px, transparent 23px),
    repeating-radial-gradient(circle at center, var(--surface-2) 0 3px, var(--surface) 3px 6px);
  display: flex; align-items: center; justify-content: center; cursor: pointer;
  border: 3px solid var(--border-color); position: relative;
  box-shadow: 5px 5px 0 var(--border-color);
  transition: transform 0.15s, box-shadow 0.15s;
}
.disc:active { transform: translate(2px, 2px); box-shadow: 2px 2px 0 var(--border-color); }
.disc:disabled { opacity: 0.6; cursor: default; transform: none; box-shadow: 5px 5px 0 var(--border-color); }
.disc.spinning { animation: spin 2.6s linear infinite; }
@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
.disc-play {
  width: 44px; height: 44px; border-radius: 50%; background: var(--text-color);
  display: flex; align-items: center; justify-content: center; color: var(--bg-color);
}
.disc-play svg { width: 16px; height: 16px; margin-left: 2px; }

.stage-row { display: flex; justify-content: center; gap: 8px; margin-bottom: 26px; flex-wrap: wrap; }
.stage-dot {
  padding: 6px 14px; border-radius: 50px; font-size: 13px; font-weight: 700;
  background: var(--surface); color: var(--text-dim); border: 2px solid var(--border-color);
}
.stage-dot.current { background: var(--text-color); color: var(--bg-color); border-color: var(--border-color); }
.stage-dot.done { background: var(--success); border-color: var(--success); color: #fff; }
[data-theme="light"] .stage-dot.done { background: #e8f5e9; color: var(--success); }

.guess-row { display: flex; gap: 8px; margin-bottom: 14px; }
.guess-combo { position: relative; flex: 1; }
.guess-row button {
  background: var(--text-color); color: var(--bg-color); border: 2px solid var(--border-color);
  border-radius: 50px; padding: 0 22px; font-weight: 700; cursor: pointer; font-family: var(--font-display);
  white-space: nowrap; box-shadow: 3px 3px 0 var(--border-color); transition: transform 0.12s, box-shadow 0.12s;
}
.guess-row button:active { transform: translate(2px, 2px); box-shadow: 1px 1px 0 var(--border-color); }

.round-actions { display: flex; justify-content: center; gap: 12px; margin-top: 6px; flex-wrap: wrap; }

.feedback {
  text-align: center; border-radius: 12px; padding: 16px; margin-top: 16px; font-size: 15px;
  display: none; border: 2px solid var(--border-color);
}
.feedback.correct { background: rgba(111,207,151,0.12); color: var(--success); border-color: var(--success); display: block; }
.feedback.wrong { background: rgba(226,87,76,0.08); color: var(--danger); border-color: var(--danger); display: block; }
[data-theme="light"] .feedback.wrong { background: #fdecea; }
[data-theme="light"] .feedback.correct { background: #e8f5e9; }
.feedback b { display: block; font-size: 16px; margin-bottom: 4px; font-family: var(--font-display); }
.reveal-cover { width: 64px; height: 64px; border-radius: 10px; object-fit: cover; display: block; margin: 0 auto 10px; border: 2px solid var(--border-color); }

.volume-row { display: flex; align-items: center; gap: 10px; margin-top: 22px; justify-content: center; }
.volume-row span { font-size: 12px; color: var(--text-dim); font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; }
input[type=range] { accent-color: var(--text-color); width: 120px; }

.results-list { list-style: none; padding: 0; margin: 0; }
.results-list li { display: flex; justify-content: space-between; gap: 10px; padding: 12px 0; border-bottom: 1px solid var(--border-subtle); font-size: 14px; }
.results-list li:last-child { border-bottom: none; }
.results-list .rtitle { color: var(--text); font-weight: 600; }
.results-list .rartist { color: var(--text-dim); font-size: 12px; margin-top: 2px; }
.results-list .rpts { font-weight: 700; font-family: var(--font-display); }
.rpts.zero { color: var(--text-dim); }
.rpts.won { color: var(--success); }
.final-score { text-align: center; margin-bottom: 24px; }
.final-score .big { font-family: var(--font-display); font-size: 44px; font-weight: 700; color: var(--text-color); }
.final-score .of { color: var(--text-dim); font-size: 14px; margin-top: 2px; }

.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.45); display: flex;
  align-items: center; justify-content: center; z-index: 200; padding: 20px;
}
.modal-overlay.hidden { display: none; }
.modal-card {
  background: var(--bg); border: 3px solid var(--border-color); border-radius: 16px; padding: 24px;
  max-width: 420px; width: 100%; box-shadow: 8px 8px 0 var(--border-color);
}
.modal-card h3 { margin: 0 0 8px; font-family: var(--font-display); font-size: 20px; color: var(--text); }
.modal-card p { margin: 0 0 20px; color: var(--text-dim); font-size: 14px; line-height: 1.5; }
.modal-actions { display: flex; gap: 12px; justify-content: flex-end; }
.modal-actions .primary-btn, .modal-actions .secondary-btn { width: auto; min-width: 90px; padding: 10px 18px; font-size: 14px; }

[data-theme="dark"] .card { box-shadow: 6px 6px 0 var(--border-color), 0 0 0 1px rgba(0,0,0,0.4); }
[data-theme="dark"] .disc { box-shadow: 5px 5px 0 var(--border-color), 0 0 0 1px rgba(0,0,0,0.4); }
[data-theme="dark"] .primary-btn,
[data-theme="dark"] .secondary-btn,
[data-theme="dark"] .mode-btn,
[data-theme="dark"] .diff-btn,
[data-theme="dark"] .back-btn,
[data-theme="dark"] .guess-row button {
  box-shadow: 3px 3px 0 var(--border-color), 0 0 0 1px rgba(0,0,0,0.35);
}
[data-theme="dark"] .modal-card { box-shadow: 8px 8px 0 var(--border-color), 0 0 0 1px rgba(0,0,0,0.4); }

@media only screen and (max-width: 1200px) {
  .app { padding-left: 30px; padding-right: 30px; }
}
@media only screen and (max-width: 1000px) {
  .app { max-width: 540px; }
  .navbar { padding: 20px 30px; }
}
@media only screen and (max-width: 800px) {
  .navbar { padding: 16px 20px; }
  .app { padding-top: 76px; max-width: 520px; }
  .disc { width: 130px; height: 130px; }
  .card { padding: 22px; }
}
@media only screen and (max-width: 600px) {
  .app { padding: 76px 16px 50px; max-width: 100%; }
  .card { padding: 18px; }
  .disc { width: 110px; height: 110px; }
  .game-header-row { flex-direction: row; flex-wrap: wrap; gap: 8px; }
  .game-top { justify-content: space-between; width: 100%; }
  .pill { flex: 1; text-align: center; justify-content: center; font-size: 12px; padding: 5px 12px; }
  .stage-row { gap: 6px; }
  .stage-dot { padding: 5px 10px; font-size: 12px; }
  .volume-row { flex-wrap: wrap; }
}
@media only screen and (max-width: 480px) {
  .mode-row, .diff-row { flex-direction: column; }
  .guess-row { flex-direction: column; }
  .guess-row button { width: 100%; padding: 12px; justify-content: center; }
  .modal-card { padding: 20px; }
  .nav-title { font-size: 19px; }
}
@media only screen and (max-width: 380px) {
  .pill { font-size: 11px; padding: 4px 10px; }
}
.suggestion-item.active { background: var(--surface-2); border-color: var(--border-color); }

@media (hover: hover) and (pointer: fine) {
  .suggestion-item:hover { background: var(--surface-2); border-color: var(--border-color); }
  .suggestion-item:hover .suggestion-play { background: #ffd43b; }
  .stepper-btn:hover { background: var(--surface); }
  .icon-btn:hover { color: var(--danger); border-color: var(--danger); }
  .add-artist:hover { color: var(--text); border-color: var(--text-color); border-style: solid; }
  .mode-btn:hover:not(.active), .diff-btn:hover:not(.active) { transform: translate(-1px, -1px); box-shadow: 4px 4px 0 var(--border-color); }
  .primary-btn:hover { transform: translate(-1px, -1px); box-shadow: 5px 5px 0 var(--border-color); }
  .secondary-btn:hover { transform: translate(-1px, -1px); box-shadow: 4px 4px 0 var(--border-color); background: var(--text-color); color: var(--bg-color); }
  .back-btn:hover { background: var(--text-color); color: var(--bg-color); transform: translate(-1px, -1px); box-shadow: 3px 3px 0 var(--border-color); }
  .disc:hover { transform: translate(-2px, -2px); box-shadow: 7px 7px 0 var(--border-color); }
  .guess-row button:hover { transform: translate(-1px, -1px); box-shadow: 4px 4px 0 var(--border-color); }
  [data-theme="dark"] .disc:hover { box-shadow: 7px 7px 0 var(--border-color), 0 0 0 1px rgba(0,0,0,0.4); }
  .nav-title-link:hover { text-decoration: underline; }
}