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

:root {
  --bg:          #000000;
  --surface:     #121212;
  --surface2:    #181818;
  --surface3:    #282828;
  --border:      #282828;
  --border2:     #404040;
  --text:        #ffffff;
  --muted:       #a7a7a7;
  --green:       #1db954;
  --green-dim:   rgba(29,185,84,0.12);
  --green-glow:  rgba(29,185,84,0.28);
  --red:         #e91429;
  --red-dim:     rgba(233,20,41,0.12);
  --yellow:      #e3a900;
  --yellow-dim:  rgba(227,169,0,0.12);
  --r:           8px;
  --r-sm:        5px;
}

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: 15px;
  overflow-x: hidden;
}

/* ─── Header ────────────────────────────────────────────────────────────── */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(0,0,0,0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  max-width: 600px;
  margin: 0 auto;
  padding: 13px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.logo-svg {
  display: block;
  flex-shrink: 0;
}
.logo-text {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 26px;
  letter-spacing: 3px;
  color: var(--text);
  line-height: 1;
}
.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}
.song-count {
  font-family: 'DM Mono', monospace;
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.5px;
}
.icon-btn {
  width: 32px; height: 32px;
  border-radius: 50%;
  border: 1px solid var(--border2);
  background: var(--surface3);
  color: var(--muted);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: border-color .2s, color .2s, background .2s;
}
.icon-btn svg { width: 14px; height: 14px; }
.icon-btn:hover { border-color: var(--green); color: var(--green); background: var(--surface3); }
.icon-btn.spinning svg { animation: spin .9s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }


/* ─── Home button ───────────────────────────────────────────────────────── */
.home-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
  color: var(--muted);
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.08em;
  padding: 5px 12px;
  border: 1px solid var(--border2);
  border-radius: 999px;
  background: var(--surface3);
  transition: border-color .2s, color .2s, background .2s;
  flex-shrink: 0;
}
.home-btn:hover { border-color: var(--green); color: var(--green); background: var(--green-dim); }
.home-btn svg { width: 12px; height: 12px; }

/* ─── Layout ────────────────────────────────────────────────────────────── */
.main {
  max-width: 600px;
  margin: 0 auto;
  padding: 28px 20px 40px;
}
.screen { display: none; }
.screen.active { display: block; }
.hidden { display: none !important; }

/* ─── Error / no songs state (replaces start screen) ───────────────────── */
.empty-state {
  text-align: center;
  padding: 80px 20px;
}
.empty-state h2 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 36px;
  letter-spacing: 2px;
  margin-bottom: 12px;
  color: var(--muted);
}
.empty-state p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
  max-width: 340px;
  margin: 0 auto 24px;
}
.warning-msg {
  display: inline-block;
  color: var(--red);
  font-size: 13px;
  padding: 10px 16px;
  background: var(--red-dim);
  border: 1px solid var(--red);
  border-radius: var(--r-sm);
}

/* ─── Clip steps ────────────────────────────────────────────────────────── */
.steps-row {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 5px;
  margin-bottom: 20px;
  padding: 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r);
}
.step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
}
.step-fill {
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: var(--surface3);
  transition: background .3s;
}
.step-dur {
  font-family: 'DM Mono', monospace;
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 0.3px;
}

/* Step states */
.step.active .step-fill {
  background: var(--green);
  animation: green-pulse 1.4s ease-in-out infinite;
}
.step.active .step-dur { color: var(--green); font-weight: 500; }
.step.skipped .step-fill { background: var(--red); }
.step.skipped .step-dur  { color: var(--red); }
.step.wrong .step-fill   { background: var(--red); }
.step.wrong .step-dur    { color: var(--red); }
.step.correct .step-fill { background: var(--green); }
.step.correct .step-dur  { color: var(--green); }
.step.artist .step-fill  { background: var(--yellow); }
.step.artist .step-dur   { color: var(--yellow); }

@keyframes green-pulse {
  0%,100% { opacity: 1; }
  50%     { opacity: 0.55; }
}

/* ─── Guess history ─────────────────────────────────────────────────────── */
.guess-history {
  display: flex;
  flex-direction: column;
  gap: 5px;
  margin-bottom: 12px;
}
.guess-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  border: 1px solid var(--border2);
  border-radius: var(--r-sm);
  font-size: 13px;
  animation: slide-in .2s ease;
}
.guess-item.wrong   { border-color: var(--red);    background: var(--red-dim); }
.guess-item.artist  { border-color: var(--yellow);  background: var(--yellow-dim); }
.guess-item.skipped { border-color: var(--border2); background: var(--surface2); }
.guess-item-icon            { font-size: 12px; }
.guess-item-title           { font-weight: 600; color: var(--text); }
.guess-item-artist          { font-size: 12px; margin-left: auto; color: var(--muted); }
.guess-item-artist.correct  { color: var(--green); font-weight: 600; }
@keyframes slide-in {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ─── Play zone / VU button ─────────────────────────────────────────────── */
.play-zone {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  margin-bottom: 28px;
}

.vu-btn {
  position: relative;
  width: 116px; height: 116px;
  border-radius: 50%;
  border: none;
  background: transparent;
  cursor: pointer;
  outline: none;
  transition: transform .15s;
}
.vu-btn:hover:not(:disabled)  { transform: scale(1.05); }
.vu-btn:active:not(:disabled) { transform: scale(0.97); }
.vu-btn:disabled { opacity: 0.4; cursor: not-allowed; }

.vu-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid var(--green);
  background: var(--green);
  transition: background .2s, box-shadow .2s;
  box-shadow: 0 0 20px var(--green-glow);
}
.vu-btn:not(:disabled):hover .vu-ring {
  background: #1ed760;
  border-color: #1ed760;
  box-shadow: 0 0 32px var(--green-glow);
}
.vu-btn.playing .vu-ring {
  background: var(--green);
  border-color: var(--green);
  animation: vu-pulse .7s ease-in-out infinite alternate;
}
@keyframes vu-pulse {
  from { box-shadow: 0 0 16px var(--green-glow); }
  to   { box-shadow: 0 0 52px var(--green-glow); }
}

.vu-inner {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
}
.vu-inner #play-icon {
  font-size: 30px;
  line-height: 1;
  color: #fff;
}
.play-dur {
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  color: rgba(255,255,255,0.75);
  letter-spacing: 1px;
}

/* Progress bar */
.play-bar-wrap {
  width: 240px; height: 3px;
  background: var(--surface3);
  border-radius: 2px;
  overflow: hidden;
}
.play-bar {
  height: 100%;
  width: 0%;
  background: var(--green);
  border-radius: 2px;
  transition: width linear;
  box-shadow: 0 0 6px var(--green-glow);
}
.play-status {
  font-size: 13px;
  color: var(--muted);
  font-style: italic;
  height: 18px;
}

/* ─── Guess zone ────────────────────────────────────────────────────────── */
.guess-zone { display: flex; flex-direction: column; gap: 10px; }
.search-wrap { position: relative; }

.search-input {
  width: 100%;
  padding: 14px 18px;
  background: var(--surface2);
  border: 1.5px solid var(--border2);
  border-radius: 500px;
  color: var(--text);
  font-family: 'DM Sans', sans-serif;
  font-size: 15px;
  outline: none;
  transition: border-color .2s, background .2s;
}
.search-input::placeholder { color: var(--muted); }
.search-input:focus {
  border-color: var(--green);
  background: var(--surface3);
}

.search-drop {
  position: absolute;
  top: calc(100% + 6px);
  left: 0; right: 0;
  background: var(--surface3);
  border: 1px solid var(--border2);
  border-radius: var(--r);
  box-shadow: 0 16px 48px rgba(0,0,0,0.7);
  z-index: 50;
  max-height: 290px;
  overflow-y: auto;
}
.search-drop::-webkit-scrollbar { width: 3px; }
.search-drop::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 2px; }

.drop-item {
  padding: 11px 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--border);
  transition: background .12s;
}
.drop-item:last-child { border-bottom: none; }
.drop-item:hover, .drop-item.hi { background: var(--surface2); }
.drop-item-info { display: flex; flex-direction: column; gap: 2px; }
.drop-title  { font-size: 14px; font-weight: 600; color: var(--text); }
.drop-artist { font-size: 12px; color: var(--muted); }
.drop-title mark, .drop-artist mark {
  background: var(--green-dim);
  color: var(--green);
  border-radius: 2px;
  padding: 0 2px;
}
.drop-empty {
  padding: 18px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
  font-style: italic;
}
.drop-item.guessed { opacity: 0.5; }
.drop-guessed-badge {
  display: inline-block;
  font-size: 10px;
  font-weight: 600;
  background: var(--yellow-dim);
  color: var(--yellow);
  border: 1px solid var(--yellow);
  border-radius: 3px;
  padding: 1px 5px;
  margin-left: 6px;
  vertical-align: middle;
  letter-spacing: 0.3px;
}

.action-row {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 8px;
}
.btn-skip {
  padding: 13px;
  background: transparent;
  border: 1.5px solid var(--border2);
  border-radius: 500px;
  color: var(--muted);
  font-family: 'Bebas Neue', sans-serif;
  font-size: 17px;
  letter-spacing: 2px;
  cursor: pointer;
  transition: border-color .2s, color .2s;
}
.btn-skip:hover { border-color: var(--yellow); color: var(--yellow); }

.btn-guess {
  padding: 13px;
  background: var(--green);
  border: none;
  border-radius: 500px;
  color: #000;
  font-family: 'Bebas Neue', sans-serif;
  font-size: 17px;
  letter-spacing: 2px;
  cursor: pointer;
  font-weight: 700;
  transition: transform .15s, opacity .15s, box-shadow .15s;
  box-shadow: 0 0 16px var(--green-glow);
}
.btn-guess:hover:not(:disabled) {
  transform: scale(1.03);
  box-shadow: 0 0 28px var(--green-glow);
}
.btn-guess:disabled { opacity: 0.25; cursor: not-allowed; box-shadow: none; }

/* ─── Result screen ─────────────────────────────────────────────────────── */
.result-card {
  position: relative;
  overflow: hidden;
  text-align: center;
  padding: 36px 28px 32px;
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: 12px;
  animation: fade-up .35s ease forwards;
}
.result-card.win {
  border-color: var(--green);
  animation: fade-up .35s ease forwards, pulse-win 2.4s ease-in-out .4s infinite;
}
.result-card.lose {
  border-color: var(--red);
  animation: fade-up .35s ease forwards, pulse-lose 2.4s ease-in-out .4s infinite;
}
@keyframes pulse-win {
  0%, 100% { outline: 2px solid rgba(29,185,84,0.7);  outline-offset: 0px; }
  50%       { outline: 2px solid rgba(29,185,84,0.12); outline-offset: 7px; }
}
@keyframes pulse-lose {
  0%, 100% { outline: 2px solid rgba(233,20,41,0.7);  outline-offset: 0px; }
  50%       { outline: 2px solid rgba(233,20,41,0.12); outline-offset: 7px; }
}
/* Blurred album art background — JS sets --art-bg when artwork exists */
.result-card::before {
  content: '';
  position: absolute;
  inset: -40px;
  background-image: var(--art-bg, none);
  background-size: cover;
  background-position: center;
  filter: blur(8px);
  opacity: 0.55;
  z-index: 0;
}
/* Dark scrim so text stays readable */
.result-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.45);
  z-index: 1;
}
/* All direct children sit above the blurred art */
.result-card > * { position: relative; z-index: 2; }
@keyframes fade-up {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Album art */
.result-art {
  width: 180px; height: 180px;
  border-radius: 6px;
  overflow: hidden;
  margin: 0 auto 20px;
  background: var(--surface3);
  flex-shrink: 0;
  box-shadow: 0 8px 32px rgba(0,0,0,0.5);
}
.result-art img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}
.art-placeholder {
  width: 100%; height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 64px;
}

.result-headline {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 32px;
  letter-spacing: 2px;
  margin-bottom: 16px;
}
.result-card.win  .result-headline { color: var(--green); }
.result-card.lose .result-headline { color: var(--red); }

.result-song {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 14px 18px;
  margin-bottom: 14px;
}
.result-song-title  { font-size: 18px; font-weight: 700; margin-bottom: 3px; }
.result-song-artist { font-size: 13px; color: var(--muted); }
.result-song-album  { font-size: 12px; color: var(--muted); font-style: italic; margin-top: 2px; }

.result-detail { font-size: 13px; color: var(--muted); font-style: italic; margin-bottom: 14px; }

/* Mini step recap */
.result-steps { display: flex; justify-content: center; gap: 5px; margin-bottom: 20px; }
.rs           { width: 34px; height: 6px; border-radius: 3px; background: var(--surface3); }
.rs.skipped   { background: var(--red); }
.rs.wrong     { background: var(--red); }
.rs.correct   { background: var(--green); }
.rs.artist    { background: var(--yellow); }

/* Already guessed warning */
.already-guessed {
  font-size: 12px;
  font-weight: 600;
  color: var(--yellow);
  padding: 6px 18px;
  letter-spacing: 0.3px;
}

/* Custom audio player (replaces native <audio controls>) */
.ca-player {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: rgba(255,255,255,0.06);
  border-radius: 8px;
  margin-bottom: 16px;
  width: 100%;
}
.ca-btn {
  width: 34px; height: 34px;
  border-radius: 50%;
  background: var(--green);
  border: none;
  color: #000;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform .15s, background .15s;
}
.ca-btn:hover { background: #1ed760; transform: scale(1.07); }
.ca-time, .ca-dur {
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  color: var(--muted);
  flex-shrink: 0;
  min-width: 30px;
}
.ca-track {
  flex: 1;
  height: 4px;
  background: rgba(255,255,255,0.12);  /* subtle — won't compete with played bar */
  border-radius: 2px;
  cursor: pointer;
  position: relative;
  transition: height .1s;
}
.ca-track:hover { height: 6px; }
.ca-fill {
  position: absolute;
  top: 0; left: 0; bottom: 0;
  width: 0%;
  background: var(--green);
  border-radius: 2px;
  pointer-events: none;
  box-shadow: 0 0 6px var(--green-glow);
}

/* Artist confirmed hint above search */
.artist-hint {
  font-size: 12px;
  font-weight: 600;
  color: var(--green);
  padding: 4px 18px 0;
  letter-spacing: 0.2px;
}

/* Result buttons */
.result-btns { display: flex; flex-direction: column; gap: 8px; }
.r-btn-primary {
  background: var(--green);
  color: #000;
  border: none;
  border-radius: 500px;
  padding: 13px 24px;
  font-family: 'Bebas Neue', sans-serif;
  font-size: 18px;
  letter-spacing: 2px;
  font-weight: 700;
  cursor: pointer;
  transition: transform .15s, box-shadow .15s;
  box-shadow: 0 0 16px var(--green-glow);
}
.r-btn-primary:hover { transform: scale(1.02); box-shadow: 0 0 28px var(--green-glow); }
.r-btn-secondary {
  background: var(--green);
  color: #000;
  border: none;
  border-radius: 500px;
  padding: 13px 24px;
  font-family: 'Bebas Neue', sans-serif;
  font-size: 18px;
  letter-spacing: 2px;
  font-weight: 700;
  cursor: pointer;
  transition: transform .15s, box-shadow .15s;
  box-shadow: 0 0 16px var(--green-glow);
}
.r-btn-secondary:hover { transform: scale(1.02); box-shadow: 0 0 28px var(--green-glow); }

/* ─── Loading overlay ───────────────────────────────────────────────────── */
.loading {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0,0,0,0.8);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
}
.loading-spinner {
  width: 44px; height: 44px;
  border: 3px solid var(--border2);
  border-top-color: var(--green);
  border-radius: 50%;
  animation: spin .7s linear infinite;
  box-shadow: 0 0 16px var(--green-glow);
}

/* ─── Responsive ────────────────────────────────────────────────────────── */
@media (max-width: 480px) {
  .main { padding: 16px 14px 32px; }
  .steps-row { padding: 12px 10px; gap: 4px; }
  .step-dur { font-size: 9px; }
  .vu-btn { width: 96px; height: 96px; }
  .vu-inner #play-icon { font-size: 26px; }
  .result-art { width: 140px; height: 140px; }
  .result-card { padding: 24px 16px; }
}