/**
 * Reusable Components
 * BEM methodology for component naming
 */

/* ========================================
   HEADER COMPONENT
   ======================================== */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: 64px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.1);
  margin-bottom: 0;
}

.header__container {
  height: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-4);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  letter-spacing: var(--letter-spacing-tight);
}

.header__logo-icon {
  font-size: 28px;
}

.header__logo-text {
  font-size: var(--font-size-xl);
}

.header__login-btn {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.header__login-icon {
  font-size: 18px;
}

.header__login-text {
  font-size: var(--font-size-base);
}

/* Mobile responsive */
@media (max-width: 767px) {
  .header__logo-text {
    font-size: var(--font-size-lg);
  }

  .header__login-text {
    display: none;
  }
}


/* ========================================
   CONTENT WRAPPER
   ======================================== */

.content-wrapper {
  max-width: 700px;
  margin: 0 auto;
  padding: var(--space-8) var(--space-4);
  padding-top: 80px;
  /* Espaço do header fixo */
}


/* ========================================
   CHAT COMPONENT
   ======================================== */
.chat-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border-glass);
}

.chat-header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--border-glass);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.chat-header__info {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.chat-header h2 {
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--text-primary);
}

.chat-icon {
  color: var(--accent-primary);
  width: 24px;
  height: 24px;
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.message {
  max-width: 80%;
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  line-height: 1.5;
  animation: fadeInUp 0.3s ease;
}

.message--ai {
  align-self: flex-start;
  background: rgba(255, 255, 255, 0.05);
  border-bottom-left-radius: 2px;
  color: var(--text-primary);
}

.message--user {
  align-self: flex-end;
  background: var(--accent-primary);
  color: #000;
  /* Contrast for white accent */
  border-bottom-right-radius: 2px;
}

.chat-input-area {
  padding: var(--spacing-lg);
  border-top: 1px solid var(--border-glass);
  background: rgba(10, 10, 10, 0.4);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.quick-actions {
  display: flex;
  gap: var(--spacing-sm);
  overflow-x: auto;
  padding-bottom: var(--spacing-xs);
}

.chip {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 12px 20px;
  background: rgba(6, 182, 212, 0.1);
  /* Cyan tint */
  border: 1px solid rgba(6, 182, 212, 0.3);
  border-radius: var(--radius-full);
  color: var(--accent-primary);
  /* Cyan text */
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  white-space: nowrap;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  position: relative;
  overflow: hidden;
}

.chip:hover {
  background: var(--accent-primary);
  color: #0f172a;
  /* Dark text for contrast */
  border-color: var(--accent-primary);
  box-shadow: 0 0 20px rgba(6, 182, 212, 0.4);
  transform: scale(1.05);
}

.chip:active {
  transform: scale(0.95);
}

.chip i {
  width: 18px;
  height: 18px;
  transition: transform 0.3s ease;
}

.chip:hover i {
  transform: rotate(15deg);
}

/* Chat Form Input */
.chat-form {
  width: 80%;
}

.input-wrapper {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid rgba(6, 182, 212, 0.2);
  border-radius: var(--radius-full);
  padding: 10px 20px;
  transition: all var(--transition-fast);
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.2);
}

.input-wrapper:focus-within {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 2px rgba(6, 182, 212, 0.2), inset 0 2px 4px rgba(0, 0, 0, 0.2);
  background: rgba(15, 23, 42, 0.8);
}

.input-wrapper input {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 1rem;
  outline: none;
  font-weight: 500;
}

.input-wrapper input::placeholder {
  color: var(--text-tertiary);
}

.send-btn {
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.2);
  color: var(--accent-primary);
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  flex-shrink: 0;
}

.send-btn:hover {
  background: var(--accent-primary);
  color: #0f172a;
  transform: scale(1.1);
  box-shadow: 0 0 12px rgba(6, 182, 212, 0.4);
}

.send-btn:active {
  transform: scale(0.95);
}


.music-card:hover {
  background: var(--color-glass-bg-hover);
  transform: translateX(4px);
}

.music-card__icon {
  font-size: var(--font-size-xl);
  flex-shrink: 0;
}

.music-card__info {
  flex: 1;
  min-width: 0;
}

.music-card__info h4 {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-1);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.music-card__info p {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
}


/* ========================================
   TIMER COMPONENT (OLD - DEPRECATED)
   ======================================== */

.timer {
  text-align: center;
  padding: var(--space-8);
}

.timer__display {
  font-size: var(--timer-font-size);
  font-weight: var(--font-weight-bold);
  font-variant-numeric: tabular-nums;
  letter-spacing: var(--letter-spacing-tight);
  color: var(--color-text-primary);
  line-height: 1;
  margin-bottom: var(--space-6);
  text-shadow: 0 2px 20px rgba(0, 122, 255, 0.3);
}

@media (max-width: 767px) {
  .timer__display {
    font-size: 56px;
  }
}

.timer__label {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--space-8);
}

.timer__controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.timer__mode-selector {
  display: flex;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
  justify-content: center;
}

.timer__mode-button {
  /* Will use glass-button as base */
  min-width: 100px;
}

.timer__mode-button--active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: white;
}


/* ========================================
   PROGRESS RING COMPONENT
   ======================================== */

.progress-ring {
  position: relative;
  width: 200px;
  height: 200px;
  margin: 0 auto var(--space-6);
}

.progress-ring__svg {
  transform: rotate(-90deg);
}

.progress-ring__circle-bg {
  fill: none;
  stroke: var(--color-glass-border);
  stroke-width: 8;
}

.progress-ring__circle {
  fill: none;
  stroke: var(--color-accent);
  stroke-width: 8;
  stroke-linecap: round;
  transition: stroke-dashoffset var(--transition-base);
}

.progress-ring__text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
}


/* ========================================
   STATS CARD COMPONENT
   ======================================== */

.stats-card {
  /* Uses glass-card as base */
  text-align: center;
}

.stats-card__value {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.stats-card__label {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
}

.stats-card__icon {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--space-3);
  padding: var(--space-3);
  background: var(--color-glass-bg);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}


/* ========================================
   STATS GRID
   ======================================== */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

@media (max-width: 767px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }
}


/* ========================================
   SESSION CARD COMPONENT
   ======================================== */

.session-card {
  /* Uses glass-card as base */
  padding: var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.session-card__icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  background: var(--color-glass-bg);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xl);
}

.session-card__content {
  flex: 1;
  min-width: 0;
}

.session-card__title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-1);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.session-card__meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.session-card__duration {
  font-weight: var(--font-weight-medium);
  color: var(--color-accent);
}


/* ========================================
   EMPTY STATE COMPONENT
   ======================================== */

.empty-state {
  text-align: center;
  padding: var(--space-12) var(--space-4);
}

.empty-state__icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-4);
  opacity: 0.3;
}

.empty-state__title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.empty-state__description {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
}


/* ========================================
   FORM GROUP COMPONENT
   ======================================== */

.form-group {
  margin-bottom: var(--space-4);
}

.form-group__label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.form-group__hint {
  display: block;
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  margin-top: var(--space-1);
}

.form-group__error {
  display: block;
  font-size: var(--font-size-xs);
  color: var(--color-error);
  margin-top: var(--space-1);
}

.form-group--error .form-group__label {
  color: var(--color-error);
}


/* ========================================
   CHECKBOX COMPONENT
   ======================================== */

.checkbox {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
  user-select: none;
}

.checkbox__input {
  appearance: none;
  width: 20px;
  height: 20px;
  background: rgba(255, 255, 255, 0.05);
  border: 2px solid var(--color-glass-border);
  border-radius: var(--radius-xs);
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  flex-shrink: 0;
}

.checkbox__input:checked {
  background: var(--color-accent);
  border-color: var(--color-accent);
}

.checkbox__input:checked::after {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%) rotate(45deg);
  width: 5px;
  height: 10px;
  border: solid white;
  border-width: 0 2px 2px 0;
}

.checkbox__input:hover {
  border-color: var(--color-glass-border-strong);
}

.checkbox__label {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}


/* ========================================
   AVATAR COMPONENT
   ======================================== */

.avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--color-glass-bg);
  border: 2px solid var(--color-glass-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  overflow: hidden;
}

.avatar--sm {
  width: 32px;
  height: 32px;
  font-size: var(--font-size-sm);
}

.avatar--lg {
  width: 64px;
  height: 64px;
  font-size: var(--font-size-xl);
}

.avatar__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}


/* ========================================
   DROPDOWN MENU COMPONENT
   ======================================== */

.dropdown {
  position: relative;
}

.dropdown__menu {
  position: absolute;
  top: calc(100% + var(--space-2));
  right: 0;
  min-width: 200px;
  background: var(--color-glass-bg);
  backdrop-filter: blur(var(--blur-lg));
  -webkit-backdrop-filter: blur(var(--blur-lg));
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  padding: var(--space-2);
  z-index: var(--z-dropdown);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-base);
}

.dropdown__menu--visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown__item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
  cursor: pointer;
  transition: background var(--transition-fast);
  white-space: nowrap;
}

.dropdown__item:hover {
  background: var(--color-glass-bg-hover);
}

.dropdown__divider {
  height: 1px;
  background: var(--color-glass-border);
  margin: var(--space-2) 0;
}


/* ========================================
   TOAST NOTIFICATION COMPONENT
   ======================================== */

.toast {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  max-width: 400px;
  background: var(--color-glass-bg);
  backdrop-filter: blur(var(--blur-lg));
  -webkit-backdrop-filter: blur(var(--blur-lg));
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  box-shadow: var(--shadow-xl);
  z-index: var(--z-toast);
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  opacity: 0;
  transform: translateY(20px);
  transition: all var(--transition-base);
}

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

.toast--success {
  border-left: 3px solid var(--color-success);
}

.toast--error {
  border-left: 3px solid var(--color-error);
}

.toast--warning {
  border-left: 3px solid var(--color-warning);
}

.toast__icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
}

.toast__content {
  flex: 1;
  min-width: 0;
}

.toast__title {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-1);
}

.toast__message {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.toast__close {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0.6;
  transition: opacity var(--transition-fast);
}

.toast__close:hover {
  opacity: 1;
}


/* ========================================
   PLAYER SECTION
   ======================================== */

.player-section {
  /* Uses glass-card as base */
  padding: var(--space-5);
  margin-top: var(--space-5);
}

/* Player Info */
.player__info {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.player__icon {
  font-size: 32px;
  flex-shrink: 0;
}

.player__details {
  flex: 1;
  min-width: 0;
}

.player__title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-1);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.player__description {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Player Controls */
.player__controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
}

.btn-icon--primary {
  background: var(--color-accent);
  border-color: var(--color-accent);
}

.btn-icon--primary:hover:not(:disabled) {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
}

/* Player Progress */
.player__progress {
  width: 100%;
}

.progress-bar {
  width: 100%;
  height: 6px;
  background: var(--color-glass-border);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-bottom: var(--space-2);
  cursor: pointer;
  position: relative;
}

.progress-bar__fill {
  height: 100%;
  background: var(--color-accent);
  border-radius: var(--radius-full);
  transition: width 0.3s ease;
  position: relative;
}

.progress-bar__fill::after {
  content: '';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 12px;
  height: 12px;
  background: white;
  border-radius: 50%;
  box-shadow: var(--shadow-md);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.progress-bar:hover .progress-bar__fill::after {
  opacity: 1;
}

.progress-time {
  display: flex;
  justify-content: space-between;
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  font-variant-numeric: tabular-nums;
}

/* Responsive */
@media (max-width: 767px) {
  .player-section {
    padding: var(--space-4);
  }

  .player__icon {
    font-size: 28px;
  }

  .player__title {
    font-size: var(--font-size-sm);
  }

  .player__description {
    font-size: var(--font-size-xs);
  }

  .player__controls {
    gap: var(--space-1);
  }
}


/* ========================================
   HISTORY SECTION
   ======================================== */

.history-section {
  padding: var(--space-6);
}

.history__header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.history__icon {
  font-size: var(--font-size-xl);
}

.history__title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}

.history__list {
  margin-bottom: var(--space-4);
}

.history__empty {
  text-align: center;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  padding: var(--space-6) 0;
}

.history-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-2);
  background: rgba(255, 255, 255, 0.03);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.history-item:hover {
  background: rgba(255, 255, 255, 0.08);
  transform: translateX(4px);
}

.history-item__icon {
  font-size: var(--font-size-lg);
  flex-shrink: 0;
}

.history-item__info {
  flex: 1;
  min-width: 0;
}

.history-item__title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: var(--space-1);
}

.history-item__time {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
}

.history-item__play {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-glass-bg);
  border: 1px solid var(--color-glass-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-base);
  flex-shrink: 0;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.history-item__play:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  transform: scale(1.1);
}

.history__expand-btn {
  width: 100%;
  padding: var(--space-3);
  font-size: var(--font-size-base);
}

/* History Modal */
.history-modal__search {
  margin-bottom: var(--space-4);
}

.history-modal__search input {
  width: 100%;
  padding: var(--space-3) var(--space-4);
}

.history-modal__list {
  max-height: 60vh;
  overflow-y: auto;
}

/* Custom scrollbar para modal */
.history-modal__list::-webkit-scrollbar {
  width: 8px;
}

.history-modal__list::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 4px;
}

.history-modal__list::-webkit-scrollbar-thumb {
  background: var(--color-glass-border);
  border-radius: 4px;
}

.history-modal__list::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.3);
}

/* Responsive */
@media (max-width: 767px) {
  .history-section {
    padding: var(--space-4);
  }

  .history-item {
    padding: var(--space-2);
  }

  .history-item__title {
    font-size: var(--font-size-sm);
  }

  .history-item__play {
    width: 32px;
    height: 32px;
  }
}


/* ========================================
   LOADING STATES
   ======================================== */

.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: var(--color-accent);
  animation: spin 1s linear infinite;
}

.loading--large {
  width: 40px;
  height: 40px;
  border-width: 4px;
}

.loading--small {
  width: 16px;
  height: 16px;
  border-width: 2px;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Skeleton loader */
.skeleton {
  background: linear-gradient(90deg,
      rgba(255, 255, 255, 0.05) 25%,
      rgba(255, 255, 255, 0.1) 50%,
      rgba(255, 255, 255, 0.05) 75%);
  background-size: 200% 100%;
  animation: loading 1.5s ease-in-out infinite;
  border-radius: var(--radius-md);
}

@keyframes loading {
  0% {
    background-position: 200% 0;
  }

  100% {
    background-position: -200% 0;
  }
}

.skeleton-text {
  height: 16px;
  margin-bottom: var(--space-2);
}

.skeleton-text--title {
  height: 24px;
  width: 60%;
}

.skeleton-circle {
  border-radius: 50%;
}


/* ========================================
   ANIMATIONS
   ======================================== */

/* Fade in up animation */
.fade-in-up {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.fade-in-up.animate-in {
  opacity: 1;
  transform: translateY(0);
}

/* Fade in animation */
.fade-in {
  opacity: 0;
  transition: opacity var(--transition-base);
}

.fade-in.animate-in {
  opacity: 1;
}

/* Scale in animation */
.scale-in {
  opacity: 0;
  transform: scale(0.9);
  transition: opacity var(--transition-base), transform var(--transition-base);
}

.scale-in.animate-in {
  opacity: 1;
  transform: scale(1);
}

/* Slide in from left */
.slide-in-left {
  opacity: 0;
  transform: translateX(-20px);
  transition: opacity var(--transition-base), transform var(--transition-base);
}

.slide-in-left.animate-in {
  opacity: 1;
  transform: translateX(0);
}

/* Slide in from right */
.slide-in-right {
  opacity: 0;
  transform: translateX(20px);
  transition: opacity var(--transition-base), transform var(--transition-base);
}

.slide-in-right.animate-in {
  opacity: 1;
  transform: translateX(0);
}

/* Pulse animation */
.pulse {
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.7;
  }
}

/* Bounce animation */
@keyframes bounce {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-10px);
  }
}

.bounce {
  animation: bounce 1s ease-in-out infinite;
}

/* Shake animation (para erros) */
@keyframes shake {

  0%,
  100% {
    transform: translateX(0);
  }

  25% {
    transform: translateX(-10px);
  }

  75% {
    transform: translateX(10px);
  }
}

.shake {
  animation: shake 0.4s ease-in-out;
}


/* ========================================
   UTILITY CLASSES
   ======================================== */

.hidden {
  display: none !important;
}

.invisible {
  visibility: hidden;
  opacity: 0;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Focus visible for skip link */
.sr-only:focus {
  position: static;
  width: auto;
  height: auto;
  margin: 0;
  padding: var(--space-2) var(--space-3);
  overflow: visible;
  clip: auto;
  white-space: normal;
  background: var(--color-accent);
  color: white;
  text-decoration: none;
  border-radius: var(--radius-md);
  z-index: 10000;
}

.disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.text-center {
  text-align: center;
}

.text-ellipsis {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ========================================
   FOCUS STYLES (Accessibility)
   ======================================== */

/* Remove default outline, add custom focus-visible styles */
*:focus {
  outline: none;
}

*:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* Specific focus styles for interactive elements */
button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.glass-button:focus-visible,
.btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  box-shadow: 0 0 0 4px rgba(139, 92, 246, 0.2);
}

.chip:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  transform: scale(1.05);
}

.modal__close:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  transform: rotate(90deg) scale(1.1);
}

/* ========================================
   LOGO
   ======================================== */
.brand-logo {
  height: 64px;
  width: auto;
  filter: drop-shadow(0 0 12px rgba(6, 182, 212, 0.4));
  transition: transform var(--transition-fast);
}

.brand-logo:hover {
  transform: scale(1.05);
}

.brand-name {
  font-size: 1.25rem;
  font-weight: 700;
  background: linear-gradient(135deg, #fff 0%, #94a3b8 100%);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.02em;
}

/* ========================================
   RIGHT SIDEBAR LAYOUT
   ======================================== */
.right-sidebar {
  width: 420px;
  min-width: 380px;
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

/* ========================================
   PLAYER CARD COMPACT
   ======================================== */
.player-card--compact {
  padding: var(--spacing-sm) var(--spacing-md);
}

.player-card--compact .player-header {
  margin-bottom: var(--spacing-xs);
}

.player-card--compact .player-info {
  margin-bottom: var(--spacing-xs);
  text-align: center;
}

.player-card--compact .player-info h4 {
  font-size: 0.9rem;
  margin-bottom: 2px;
}

.player-card--compact .player-info p {
  font-size: 0.75rem;
}

.player-card--compact .player-controls {
  margin-bottom: var(--spacing-xs);
  gap: var(--spacing-sm);
}

.player-card--compact .player-volume {
  padding-top: var(--spacing-xs);
}


/* ========================================
   VOLUME SLIDER STYLES
   ======================================== */
.volume-slider {
  flex: 1;
  height: 4px;
  -webkit-appearance: none;
  appearance: none;
  background: linear-gradient(to right, var(--accent-primary, #06b6d4) 70%, rgba(255,255,255,0.2) 70%);
  border-radius: 2px;
  cursor: pointer;
  outline: none;
}

.volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  background: var(--accent-primary, #06b6d4);
  border-radius: 50%;
  cursor: pointer;
  transition: transform 0.2s;
}

.volume-slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.volume-slider::-moz-range-thumb {
  width: 14px;
  height: 14px;
  background: var(--accent-primary, #06b6d4);
  border-radius: 50%;
  cursor: pointer;
  border: none;
}

/* ========================================
   PLAYER CARD
   ======================================== */
.player-card {
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.6) 0%, rgba(15, 23, 42, 0.4) 100%);
}

/* ... (Keep existing player styles, just ensure they target .player-card descendants correctly if needed) ... */
/* Re-using existing player classes but ensuring they work in the new context */
.player-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xs);
}

.player-info {
  text-align: center;
  margin-bottom: var(--spacing-sm);
}

.player-info h4 {
  font-weight: 700;
  margin-bottom: 4px;
  color: var(--text-primary);
  font-size: 1.1rem;
}

.player-info p {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.player-controls {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
}

.player-controls .icon-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.player-controls .icon-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: scale(1.05);
}

.player-controls .icon-btn.primary {
  background: var(--text-primary);
  color: #0f172a;
}

.player-controls .icon-btn.primary:hover {
  background: var(--accent-primary);
  box-shadow: 0 0 12px rgba(6, 182, 212, 0.4);
}

.player-volume {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--text-secondary);
  padding-top: var(--spacing-sm);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.volume-bar {
  flex: 1;
  height: 4px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 2px;
  position: relative;
  cursor: pointer;
}

.volume-bar::after {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 60%;
  background: var(--accent-primary);
  border-radius: 2px;
  transition: width 0.2s;
}

/* ========================================
   CAROUSEL CARD (IMPROVED DESIGN)
   ======================================== */
.carousel-card {
  padding: var(--spacing-sm) var(--spacing-md);
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.6) 0%, rgba(15, 23, 42, 0.4) 100%);
  position: relative;
  flex: 1;
  min-height: 180px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.carousel-slides {
  flex: 1;
  position: relative;
  width: 100%;
}

.carousel-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transform: translateX(20px);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.carousel-slide.active {
  opacity: 1;
  transform: translateX(0);
  pointer-events: all;
}

.slide-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--accent-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding-bottom: var(--spacing-sm);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

/* History Items */
.history-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.history-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 12px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-sm);
  transition: all 0.2s;
  cursor: pointer;
  border: 1px solid transparent;
}

.history-item:hover {
  background: rgba(6, 182, 212, 0.15);
  border-color: rgba(6, 182, 212, 0.3);
  transform: translateX(4px);
}

.history-item:hover .track-name {
  color: var(--accent-primary, #06b6d4);
}

.history-item:active {
  transform: translateX(2px) scale(0.98);
}

.history-play-icon {
  width: 28px;
  height: 28px;
  min-width: 28px;
  border-radius: 50%;
  background: rgba(6, 182, 212, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-primary, #06b6d4);
  margin-right: 10px;
  transition: all 0.2s;
}

.history-item:hover .history-play-icon {
  background: var(--accent-primary, #06b6d4);
  color: #000;
  transform: scale(1.1);
}

.history-info {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
}

.track-name {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color 0.2s;
}

.track-artist {
  font-size: 0.7rem;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.track-time {
  font-size: 0.7rem;
  color: var(--text-tertiary);
  flex-shrink: 0;
  margin-left: 8px;
}

.track-artist {
  font-size: 0.75rem;
  color: var(--text-tertiary);
}

.track-time {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
}

/* Stats Overview */
.stats-overview {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
}

.stat-box {
  background: rgba(6, 182, 212, 0.05);
  border: 1px solid rgba(6, 182, 212, 0.1);
  border-radius: var(--radius-md);
  padding: 12px;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-value {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
}

.stat-label {
  font-size: 0.75rem;
  color: var(--accent-primary);
  text-transform: uppercase;
  font-weight: 600;
}

/* Mini Chart */
.stats-chart-mini {
  flex: 1;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 8px;
  padding-top: var(--spacing-sm);
}

.chart-col {
  flex: 1;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 2px;
  transition: all 0.3s;
}

.chart-col.active {
  background: var(--accent-primary);
  box-shadow: 0 0 10px rgba(6, 182, 212, 0.3);
}

/* Dots */
.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: auto;
  padding-top: var(--spacing-md);
}

.dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  border: none;
  cursor: pointer;
  transition: all 0.3s;
}

.dot.active {
  background: var(--accent-primary);
  width: 18px;
  border-radius: 10px;
}

.dot:hover {
  background: rgba(255, 255, 255, 0.5);
}