:root{
  --bg:#f8fafc;
  --bg-card:#ffffff;
  --text:#0f172a;
  --text-secondary:#64748b;
  --muted:#94a3b8;
  --accent:#38bdf8;
  --accent-hover:#0ea5e9;
  --accent-glow: rgba(56, 189, 248, 0.25);
  --border:#e2e8f0;
  --shadow: 0 10px 30px rgba(15,23,42,.08);
  --radius:16px;
}

*{ box-sizing:border-box; margin:0; padding:0; }

body{
  margin:0;
  font-family: 'Inter', ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

.page{
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.site-footer{
  margin-top: 16px;
  text-align: center;
  font-size: 13px;
  color: var(--muted);
  line-height: 1.4;
}

.wrap{
  width: 100%;
  max-width: 1200px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 4px 24px rgba(15,23,42,.12);
  padding: 48px 32px;
}

/* Header */
.header{
  text-align:center;
  margin-bottom: 48px;
}

.logo{
  width: clamp(220px, 40vw, 520px);
  max-width: 100%;
  display: block;
  margin: 0 auto 16px;
  background: transparent;
  border: 0;
  box-shadow: none;
  overflow: visible;
}

.logo svg{ width:28px;height:28px; fill:#fff; }

.logo img{
  width: 100%;
  height: auto;
  object-fit: contain;
  display: block;
}

.sublinhado {
  text-decoration: underline;
}

h1{
  margin: 0;
  font-size: 48px;
  letter-spacing: -0.03em;
  font-weight: 700;
  background: linear-gradient(to right, #0f172a, #0ea5e9);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.subtitle{
  margin: 12px 0 0;
  color: var(--text-secondary);
  font-size: 16px;
  font-weight: 400;
}

.subtitle-small{
  margin: 12px 0 0;
  color: var(--text-secondary);
  font-size: 10px;
  font-weight: 700;
}

/* Grid */
.grid{
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  justify-items: stretch;
  align-items: stretch;
}

/* Card */
.card{
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow:hidden;
  box-shadow: 0 4px 16px rgba(15,23,42,.08);
  display:flex;
  flex-direction: column;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  position: relative;
}

.card:hover{
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(15,23,42,.15);
}

.media{
  position: relative;
  aspect-ratio: 1;
  background: #f1f5f9;
  overflow:hidden;
}

.media img{
  width:100%;
  height:100%;
  object-fit: cover;
  display:block;
  transition: transform 0.3s ease, filter 0.3s ease;
}

.media:hover img{
  transform: scale(1.05);
  filter: brightness(0.7);
}

.play-overlay{
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80px;
  height: 80px;
  border: none;
  border-radius: 50%;
  background: rgba(56, 189, 248, 0.95);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  transition: all 0.3s ease;
  box-shadow: 0 8px 32px rgba(56, 189, 248, 0.4);
}

.media:hover .play-overlay{
  opacity: 1;
}

.play-overlay:hover{
  background: var(--accent-hover);
  transform: translate(-50%, -50%) scale(1.1);
  box-shadow: 0 12px 40px rgba(56, 189, 248, 0.6);
}

.play-overlay:active{
  transform: translate(-50%, -50%) scale(0.95);
}

.play-overlay svg{
  width: 32px;
  height: 32px;
}

.play-overlay .play-icon{
  margin-left: 4px;
}

.card.playing .play-overlay .play-icon{
  display: none;
}

.card.playing .play-overlay .stop-icon{
  display: block !important;
}

.card.playing .play-overlay{
  background: #ef4444;
}

.card.playing .play-overlay:hover{
  background: #dc2626;
  box-shadow: 0 12px 40px rgba(239, 68, 68, 0.6);
}

.card.playing .media:hover .play-overlay{
  opacity: 1;
}

.rank{
  position:absolute;
  top: 12px;
  left: 12px;
  background: var(--accent);
  color:#fff;
  font-size: 12px;
  font-weight: 700;
  padding: 6px 12px;
  border-radius: 20px;
  box-shadow: 0 4px 16px var(--accent-glow);
  user-select:none;
}

.content{
  padding: 20px;
  display:flex;
  flex-direction: column;
  gap: 16px;
  flex:1;
  text-align: center;
}

.player{
  padding: 0 20px 16px;
}

.player .audio{
  display: none;
}

.player-toggle{
  width: 100%;
  border: none;
  background: var(--accent);
  border-radius: 12px;
  padding: 10px 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  cursor: pointer;
  color: #fff;
  box-shadow: 0 4px 16px var(--accent-glow);
  transition: background .2s ease, transform .1s ease, box-shadow .2s ease;
}

.player-toggle:hover{
  background: var(--accent-hover);
  box-shadow: 0 6px 24px var(--accent-glow);
}

.player-toggle:active{
  transform: translateY(1px);
}

.player-label{
  font-weight: 600;
  font-size: 12px;
}

.card.playing .player-toggle{
  /* Mantém azul enquanto toca; só muda para verde quando validada */
  background: var(--accent);
  color: #fff;
  border: none;
  box-shadow: 0 4px 16px var(--accent-glow);
}

/* Música validada (ouviu >= 25%) */
.card.listened .player-toggle{
  background: #10b981;
  color: #fff;
  border: none;
  box-shadow: 0 10px 26px rgba(16, 185, 129, 0.22);
}

.card.listened .player-toggle:hover{
  background: #059669;
  box-shadow: 0 12px 32px rgba(16, 185, 129, 0.28);
}

.card.playing .player-toggle .play-icon{ display: none; }
.card.playing .player-toggle .stop-icon{ display: inline-block !important; }
.card.playing .player-toggle .player-label::before{ content: "PAUSAR"; }
.player-label::before{ content: "OUVIR"; }
.player-label{ display: inline-block; }


.title{
  font-size: 18px;
  font-weight: 600;
  margin: 0;
  line-height: 1.3;
  color: var(--text);
}

.artist{
  margin: 4px 0 0;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.3;
}

.actions{
  padding: 0 20px 20px;
  margin-top: 12px;
  display: flex;
  gap: 12px;
  align-items: stretch;
}

.actions .player{
  padding: 0;
  flex: 1;
}

.actions .player-toggle{
  width: 100%;
  height: 100%;
  padding: 14px 12px;
}

.actions .btn{
  width: 100%;
  flex: 1;
  padding: 14px 12px;
}

.btn{
  width: 100%;
  border: none;
  border-radius: 12px;
  padding: 14px 20px;
  font-weight: 600;
  font-size: 12px;
  letter-spacing: .02em;
  color: #fff;
  background: var(--accent);
  box-shadow: 0 4px 16px var(--accent-glow);
  cursor:pointer;
  transition: background .2s ease, transform .1s ease, box-shadow .2s ease;
}

.btn:hover{
  background: var(--accent-hover);
  box-shadow: 0 6px 24px var(--accent-glow);
}

.btn:disabled,
.btn[aria-disabled="true"]{
  background: var(--text-secondary);
  box-shadow: none;
  opacity: 0.65;
  cursor: not-allowed;
}

.btn:disabled:hover,
.btn[aria-disabled="true"]:hover{
  background: var(--text-secondary);
  box-shadow: none;
}

.btn:active{ transform: translateY(1px); }


.card.selected{
  border-color: rgba(56, 189, 248, 0.95);
  transform: translateY(-8px) scale(1.02);
  box-shadow:
    0 18px 44px rgba(15,23,42,.18),
    0 0 0 4px rgba(56, 189, 248, 0.18);
  animation: selected-pop 260ms ease-out;
}

.card.selected::after{
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: calc(var(--radius) + 1px);
  pointer-events: none;
  box-shadow: 0 0 0 2px rgba(56, 189, 248, 0.55);
  opacity: 0;
  animation: selected-ring 520ms ease-out;
}

@keyframes selected-pop{
  from{
    transform: translateY(-2px) scale(1);
  }
  to{
    transform: translateY(-8px) scale(1.02);
  }
}

@keyframes selected-ring{
  0%{ opacity: 0; transform: scale(0.985); }
  45%{ opacity: 1; transform: scale(1.01); }
  100%{ opacity: 0; transform: scale(1.02); }
}

/* Toast */
.toast{
  position: fixed;
  right: 20px;
  bottom: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 16px 20px;
  border-radius: 12px;
  box-shadow: 0 12px 32px rgba(15,23,42,.2);
  display:flex;
  gap: 12px;
  align-items: center;
  opacity: 0;
  transform: translateY(10px);
  pointer-events:none;
  transition: opacity .2s ease, transform .2s ease;
  max-width: 360px;
}

.toast.show{
  opacity: 1;
  transform: translateY(0);
}

.toast .dot{
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-glow);
}

.toast .t-title{
  font-weight: 600;
  font-size: 14px;
  margin:0;
}

.toast .t-sub{
  margin: 4px 0 0;
  font-size: 13px;
  color: var(--text-secondary);
}

/* Responsivo */
@media (max-width: 1100px){
  .grid{ gap: 20px; }
}

@media (max-width: 620px){
  h1{ font-size: 32px; }
  .subtitle{ font-size: 14px; }
  .subtitle-small{ font-size: 10px; }
  .grid{ grid-template-columns: 1fr; gap: 16px; }
  .page{ padding: 16px; }
  .wrap{ padding: 36px 18px; }
  .logo{ width: min(92vw, 340px); }

  .content{ padding: 16px; }
  .actions{ padding: 0 16px 16px; }

  .actions .player{ padding: 0; }

  .play-overlay{ width: 64px; height: 64px; }
  .play-overlay svg{ width: 26px; height: 26px; }
}