/* Único fluxo do index.html, em qualquer tamanho de tela — 3 telas em pilha
   (Home / Lista / Partitura), navegadas via History API. Cada `.view` ocupa
   a tela toda; só uma fica visível por vez (a escondida usa [hidden], que aqui
   ganha prioridade sobre o `display` do `.view` por ser mais específico). Acima
   do breakpoint em MOLDURA DE "CELULAR", isso aparece como um cartão centralizado. */

body.mobile-home-body {
  padding: 0;
  height: 100vh;
  overflow: hidden;
}

.mobile-app {
  width: 100%;
  height: 100vh;
  max-width: 600px;
  margin: 0 auto;
  position: relative;
}

/* --- MOLDURA DE "CELULAR" EM TELAS LARGAS ---
   Acima do breakpoint, o app fica com tamanho fixo de celular, centralizado,
   com o fundo (gradiente do body) preenchendo a margem ao redor. */
@media (min-width: 700px) {
  body.mobile-home-body {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .mobile-app {
    width: 400px;
    height: 860px;
    max-height: 92vh;
    border-radius: 40px;
    box-shadow: 0 25px 60px var(--shadow-black-20);
    overflow: hidden;
  }

  .view {
    border-radius: inherit;
  }
}

.view {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  padding: 15px;
}

.view[hidden] {
  display: none;
}

/* --- HOME --- */

.view-home .header {
  height: auto;
  margin-bottom: 15px;
  flex-shrink: 0;
}

.playlist-groups {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.playlist-group-label {
  margin: 0 0 10px 0;
  font-family: 'Outfit', sans-serif;
  font-weight: 800;
  font-size: 1rem;
  color: var(--color-text-dark);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.playlist-cards {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.playlist-card {
  text-align: left;
  padding: 18px 20px;
  border-radius: 16px;
  border: 1px solid var(--glass-border-50);
  background-color: var(--glass-bg-50);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 4px 15px var(--shadow-black-05);
  font-size: 1.1rem;
  font-weight: 600;
  font-family: 'Lato', sans-serif;
  color: var(--color-text-dark);
  cursor: pointer;
}

.playlist-card:active {
  transform: scale(0.98);
  background-color: var(--glass-bg-80);
}

/* --- TOPBAR (Lista e Partitura) --- */

.view-topbar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 15px;
  flex-shrink: 0;
}

.view-title {
  margin: 0;
  font-family: 'Outfit', sans-serif;
  font-weight: 800;
  font-size: 1.3rem;
  color: var(--color-text-dark);
}

.back-btn {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: none;
  background-color: var(--glass-bg-50);
  color: var(--color-text-dark);
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

/* --- LISTA --- */

#view-list #search-input {
  width: 100%;
  padding: 10px;
  margin-bottom: 10px;
  border-radius: 10px;
  border: 1px solid var(--glass-border-60);
  font-size: 16px;
  background-color: var(--glass-bg-50);
  flex-shrink: 0;
}

/* --- PARTITURA (tela cheia) --- */

.view-score {
  padding-top: 65px;
}

.score-close-btn {
  position: absolute;
  top: 15px;
  right: 15px;
  z-index: 10;
}

#view-score .music-container {
  position: static;
  flex-shrink: 0;
  margin-bottom: 15px;
}

#view-score .instrument-selector-container {
  flex: 0 0 auto;
  margin-bottom: 15px;
}

#view-score .melody-column {
  flex: 1 1 auto;
  height: auto;
}