/* =========================================================
   RESET & VARIÁVEIS GLOBAIS
   ========================================================= */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg-black: #000000;
  --bg-base: #121212;
  --bg-elevated: #181818;
  --bg-elevated-hover: #282828;
  --bg-highlight: #2a2a2a;
  --text-white: #ffffff;
  --text-subdued: #a7a7a7;
  --text-bright-accent: #1ed760;
  --green: #1db954;
  --green-hover: #1ed760;
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 12px;
  --sidebar-width: 280px;
  --player-height: 90px;
  --topbar-height: 64px;
  --transition-fast: 0.2s ease;
  --transition-medium: 0.3s ease;
}

html,
body {
  height: 100%;
  background-color: var(--bg-black);
  color: var(--text-white);
  font-family:
    "Segoe UI", "Helvetica Neue", Helvetica, Arial, sans-serif, "Circular Std";
  overflow: hidden;
  font-size: 14px;
}

ul {
  list-style: none;
}

a {
  text-decoration: none;
  color: inherit;
}

button {
  font-family: inherit;
  border: none;
  background: none;
  cursor: pointer;
  color: inherit;
}

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

::-webkit-scrollbar {
  width: 12px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background-color: rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  border: 3px solid var(--bg-base);
}
::-webkit-scrollbar-thumb:hover {
  background-color: rgba(255, 255, 255, 0.3);
}

/* =========================================================
   APP LAYOUT
   ========================================================= */
.app {
  display: flex;
  height: 100vh;
  padding: 8px 8px 0 8px;
  gap: 8px;
  animation: fadeIn 0.6s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* =========================================================
   SIDEBAR
   ========================================================= */
.sidebar {
  width: var(--sidebar-width);
  min-width: 220px;
  background-color: var(--bg-base);
  border-radius: var(--border-radius-lg);
  display: flex;
  flex-direction: column;
  padding: 18px 12px;
  flex-shrink: 0;
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 8px 20px 8px;
  font-weight: 700;
  font-size: 20px;
  letter-spacing: -0.5px;
}

.sidebar-logo img {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  object-fit: contain;
}

.sidebar-nav ul {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 10px 12px;
  border-radius: var(--border-radius-sm);
  color: var(--text-subdued);
  font-weight: 700;
  font-size: 14.5px;
  cursor: pointer;
  transition:
    color var(--transition-fast),
    background-color var(--transition-fast);
}

.nav-item svg {
  width: 22px;
  height: 22px;
  fill: currentColor;
  flex-shrink: 0;
}

.nav-item:hover {
  color: var(--text-white);
}

.nav-item.active {
  color: var(--text-white);
}

.sidebar-divider {
  height: 1px;
  background-color: rgba(255, 255, 255, 0.1);
  margin: 16px 8px;
}

.sidebar-playlists {
  flex: 1;
  overflow-y: auto;
  padding: 0 4px;
}

.sidebar-title {
  color: var(--text-subdued);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  padding: 8px 8px 12px 8px;
}

#playlistList {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.playlist-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.playlist-item:hover {
  background-color: var(--bg-elevated-hover);
}

.playlist-thumb {
  width: 48px;
  height: 48px;
  border-radius: var(--border-radius-sm);
  overflow: hidden;
  flex-shrink: 0;
  background: linear-gradient(135deg, #450af5, #c4efd9);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}

.playlist-info {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.playlist-name {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-white);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.playlist-type {
  font-size: 12px;
  color: var(--text-subdued);
}

/* =========================================================
   MAIN
   ========================================================= */
.main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  background: linear-gradient(180deg, #3a2a45 0, var(--bg-base) 300px);
}

/* =========================================================
   TOPBAR
   ========================================================= */
.topbar {
  height: var(--topbar-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  flex-shrink: 0;
  background-color: rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 20;
}

.topbar-nav {
  display: flex;
  gap: 16px;
}

.nav-btn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  transition:
    background-color var(--transition-fast),
    transform var(--transition-fast);
}

.nav-btn svg {
  width: 18px;
  height: 18px;
  fill: var(--text-white);
}

.nav-btn:hover {
  background-color: rgba(0, 0, 0, 0.8);
  transform: scale(1.05);
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

.pill-btn {
  color: var(--text-white);
  font-weight: 700;
  font-size: 14px;
  padding: 8px 16px;
  border-radius: 500px;
  transition: transform var(--transition-fast);
}

.pill-btn:hover {
  transform: scale(1.05);
}

.profile-circle {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, #e91e63, #ff9800);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 12px;
  cursor: pointer;
  transition:
    transform var(--transition-fast),
    box-shadow var(--transition-fast);
}

.profile-circle:hover {
  transform: scale(1.06);
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.15);
}

/* =========================================================
   CONTEÚDO CENTRAL
   ========================================================= */
.content {
  flex: 1;
  overflow-y: auto;
  padding: 8px 32px calc(var(--player-height) + 32px) 32px;
}

.greeting {
  padding: 16px 0 32px 0;
  animation: slideUp 0.5s ease;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.greeting h1 {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 6px;
}

.greeting p {
  color: var(--text-subdued);
  font-size: 15px;
}

.section {
  margin-bottom: 40px;
}

.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 16px;
}

.section-header h2 {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.3px;
}

.show-all {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-subdued);
  transition: color var(--transition-fast);
}

.show-all:hover {
  color: var(--text-white);
  text-decoration: underline;
}

/* =========================================================
   GRID DE CARDS
   ========================================================= */
.grid-cards {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 20px;
}

.card {
  background-color: var(--bg-elevated);
  border-radius: var(--border-radius-md);
  padding: 14px;
  cursor: pointer;
  transition:
    background-color var(--transition-medium),
    transform var(--transition-medium),
    box-shadow var(--transition-medium);
  position: relative;
  animation: cardIn 0.5s ease backwards;
}

@keyframes cardIn {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.card:hover {
  background-color: var(--bg-elevated-hover);
  transform: translateY(-6px);
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.5);
}

.card-image-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: var(--border-radius-sm);
  overflow: hidden;
  margin-bottom: 16px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  background: linear-gradient(135deg, #333, #1a1a1a);
}

.card-image-wrapper img {
  transition: transform var(--transition-medium);
}

.card:hover .card-image-wrapper img {
  transform: scale(1.03);
}

.card-play-btn {
  position: absolute;
  right: 8px;
  bottom: 8px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--green);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.5);
  opacity: 0;
  transform: translateY(8px);
  transition:
    opacity var(--transition-medium),
    transform var(--transition-medium),
    background-color var(--transition-fast);
}

.card:hover .card-play-btn {
  opacity: 1;
  transform: translateY(0);
}

.card-play-btn:hover {
  background-color: var(--green-hover);
  transform: scale(1.06);
}

.card-play-btn svg {
  width: 20px;
  height: 20px;
  fill: #000;
  margin-left: 2px;
}

.card-title {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-desc {
  font-size: 13px;
  color: var(--text-subdued);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.4;
}

/* =========================================================
   LISTA DE MÚSICAS
   ========================================================= */
.track-list-head {
  display: grid;
  grid-template-columns: 32px 3fr 1fr 30px;
  gap: 16px;
  padding: 0 16px 8px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  margin-bottom: 8px;
  color: var(--text-subdued);
  font-size: 12px;
  font-weight: 600;
}

.col-duration {
  display: flex;
  justify-content: flex-end;
  align-items: center;
}

.col-duration svg {
  fill: var(--text-subdued);
}

.track-row {
  display: grid;
  grid-template-columns: 32px 3fr 1fr 30px;
  gap: 16px;
  align-items: center;
  padding: 8px 16px;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: background-color var(--transition-fast);
  animation: cardIn 0.4s ease backwards;
}

.track-row:hover {
  background-color: var(--bg-elevated-hover);
}

.track-row.playing .track-index {
  color: var(--green);
}

.track-index {
  color: var(--text-subdued);
  font-size: 14px;
  text-align: center;
}

.track-row:hover .track-index {
  display: none;
}

.track-hover-play {
  display: none;
  width: 16px;
  height: 16px;
  margin: 0 auto;
  fill: var(--text-white);
}

.track-row:hover .track-hover-play {
  display: block;
}

.track-main {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.track-cover {
  width: 40px;
  height: 40px;
  border-radius: var(--border-radius-sm);
  overflow: hidden;
  flex-shrink: 0;
  background: linear-gradient(135deg, #444, #1a1a1a);
}

.track-texts {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.track-name {
  font-size: 14.5px;
  color: var(--text-white);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.track-row.playing .track-name {
  color: var(--green);
}

.track-artist {
  font-size: 13px;
  color: var(--text-subdued);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.track-album {
  font-size: 14px;
  color: var(--text-subdued);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.track-duration {
  font-size: 14px;
  color: var(--text-subdued);
  text-align: right;
}

.content-footer {
  margin-top: 60px;
  padding: 24px 0 40px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--text-subdued);
  font-size: 13px;
  text-align: center;
}

/* =========================================================
   MODAL
   ========================================================= */
.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-medium);
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.modal {
  width: min(420px, 90vw);
  background-color: #1a1a1a;
  max-height: 90vh;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.6);
  transform: scale(0.9) translateY(20px);
  opacity: 0;
  transition:
    transform var(--transition-medium),
    opacity var(--transition-medium);
  position: relative;
  display: flex;
  flex-direction: column;
}

.modal-overlay.open .modal {
  transform: scale(1) translateY(0);
  opacity: 1;
}

.modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 5;
  transition:
    background-color var(--transition-fast),
    transform var(--transition-fast);
}

.modal-close:hover {
  background-color: rgba(0, 0, 0, 0.85);
  transform: rotate(90deg);
}

.modal-close svg {
  width: 16px;
  height: 16px;
  fill: var(--text-white);
}

.modal-image-wrapper {
  width: 100%;
  height: 380px; /* ou 160px */
  flex-shrink: 0;
  overflow: hidden;
  background: linear-gradient(135deg, #333, #111);
}

.modal-image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.modal-body {
  padding: 24px 28px 28px;
  overflow-y: auto;
  flex: 1;
}

.modal-eyebrow {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.2px;
  color: var(--green-hover);
}

.modal-body h2 {
  font-size: 24px;
  font-weight: 800;
  margin: 8px 0 12px 0;
}

.modal-body h3 {
  font-size: 18px;
  font-weight: 700;
  margin: 8px 0 12px 0;
}

.modal-body p {
  font-size: 14.5px;
  line-height: 1.6;
  color: #d5d5d5;
  margin-bottom: 22px;
}

.modal-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  background-color: var(--green);
  color: #000;
  font-weight: 700;
  font-size: 14px;
  padding: 10px 20px;
  border-radius: 500px;
  transition:
    background-color var(--transition-fast),
    transform var(--transition-fast);
}

.modal-btn:hover {
  background-color: var(--green-hover);
  transform: scale(1.04);
}

/* =========================================================
   PLAYER (RODAPÉ)
   ========================================================= */
.player {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: var(--player-height);
  z-index: 100;
  background-color: var(--bg-elevated);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: grid;
  grid-template-columns: 1fr 2fr 1fr;
  align-items: center;
  padding: 0 16px;
  gap: 16px;
}

.player-current {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

#playerCover {
  width: 56px;
  height: 56px;
  border-radius: var(--border-radius-sm);
  background: linear-gradient(135deg, #444, #1a1a1a);
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

.player-info {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.player-track-name {
  font-size: 14px;
  color: var(--text-white);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.player-artist-name {
  font-size: 12px;
  color: var(--text-subdued);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.like-btn {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--text-subdued);
  transition:
    color var(--transition-fast),
    transform var(--transition-fast);
}

.like-btn svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.like-btn:hover {
  color: var(--text-white);
  transform: scale(1.1);
}

.like-btn.liked {
  color: var(--green);
}

.player-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  max-width: 720px;
  width: 100%;
  margin: 0 auto;
}

.player-controls {
  display: flex;
  align-items: center;
  gap: 20px;
}

.ctrl-btn {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-subdued);
  transition:
    color var(--transition-fast),
    transform var(--transition-fast);
}

.ctrl-btn svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.ctrl-btn:hover {
  color: var(--text-white);
  transform: scale(1.08);
}

.ctrl-btn.active {
  color: var(--green);
}

.play-btn {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background-color: var(--text-white);
  display: flex;
  align-items: center;
  justify-content: center;
  transition:
    transform var(--transition-fast),
    background-color var(--transition-fast);
}

.play-btn svg {
  width: 16px;
  height: 16px;
  margin-left: 2px;
}

.play-btn:hover {
  transform: scale(1.08);
  background-color: #f0f0f0;
}

.progress-bar-wrapper {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
}

.time-current,
.time-total {
  font-size: 11px;
  color: var(--text-subdued);
  min-width: 36px;
  text-align: center;
  user-select: none;
}

.progress-track {
  position: relative;
  flex: 1;
  height: 4px;
  background-color: rgba(255, 255, 255, 0.3);
  border-radius: 2px;
  cursor: pointer;
}

.progress-fill {
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 0%;
  background-color: var(--text-white);
  border-radius: 2px;
  transition: background-color var(--transition-fast);
}

.progress-track:hover .progress-fill {
  background-color: var(--green);
}

.progress-handle {
  position: absolute;
  top: 50%;
  left: 0%;
  width: 12px;
  height: 12px;
  background-color: var(--text-white);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  opacity: 0;
  transition: opacity var(--transition-fast);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.4);
}

.progress-track:hover .progress-handle {
  opacity: 1;
}

.player-volume {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
}

#volumeIcon {
  width: 18px;
  height: 18px;
  fill: var(--text-subdued);
  flex-shrink: 0;
}

.volume-track {
  position: relative;
  width: 100px;
  height: 4px;
  background-color: rgba(255, 255, 255, 0.3);
  border-radius: 2px;
  cursor: pointer;
}

.volume-fill {
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 70%;
  background-color: var(--text-white);
  border-radius: 2px;
}

.volume-track:hover .volume-fill {
  background-color: var(--green);
}

.volume-handle {
  position: absolute;
  top: 50%;
  left: 70%;
  width: 12px;
  height: 12px;
  background-color: var(--text-white);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.volume-track:hover .volume-handle {
  opacity: 1;
}

/* =========================================================
   PLACEHOLDER DE IMAGEM (fallback caso a imagem local não exista)
   ========================================================= */
.img-fallback {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    135deg,
    var(--fallback-c1, #450af5),
    var(--fallback-c2, #c4efd9)
  );
  font-size: 1.6em;
}

/* =========================================================
   RESPONSIVIDADE
   ========================================================= */

/* Tablets */
@media (max-width: 1024px) {
  .grid-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .sidebar {
    width: 220px;
    min-width: 180px;
  }
  .player {
    grid-template-columns: 1fr 2fr auto;
  }
  .player-volume {
    display: none;
  }
}

/* Celulares */
@media (max-width: 700px) {
  html,
  body {
    overflow: hidden;
  }

  .app {
    display: block;
    height: 100vh;
    padding: 0;
  }

  .main {
    height: 100vh;
    border-radius: 0;
  }

  /* Sidebar vira menu inferior */
  .sidebar {
    display: none;
  }

  .sidebar-logo,
  .sidebar-divider,
  .sidebar-playlists,
  .sidebar-title {
    display: none;
  }

  .sidebar-nav {
    width: 100%;
  }

  .sidebar-nav ul {
    flex-direction: row;
    justify-content: space-around;
    align-items: center;
  }

  .nav-item {
    flex-direction: column;
    justify-content: center;
    gap: 3px;
    padding: 5px;
    font-size: 11px;
  }

  .nav-item i {
    font-size: 22px;
  }

  .content {
    padding: 16px 16px calc(var(--player-height) + 80px) 16px;
  }

  .player {
    min-height: 150px;
    display: flex;
    flex-direction: column;
    padding: 10px 16px;
    gap: 8px;
  }

  .player-current {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 12px;
  }

  .player-center {
    width: 100%;
  }

  #playerCover {
    width: 48px;
    height: 48px;
  }

  .player-info {
    flex: 1;
  }

  .player-controls {
    justify-content: center;
    gap: 25px;
  }

  .ctrl-btn {
    display: flex;
  }

  #prevBtn,
  #nextBtn,
  #playBtn {
    display: flex;
  }

  .progress-bar-wrapper {
    display: flex;
    width: 100%;
    margin-top: 6px;
  }

  .time-current,
  .time-total {
      min-width: 32px;
      font-size: 10px;
  }

  .progress-track {
      flex: 1;
  }
  .player-volume {
    display: none;
  }
}

@media (max-width: 420px) {
  .grid-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }
  .sidebar-logo span {
    display: none;
  }
}