/* ============================================
   B-SIDE - Components (Pulsanti, Artwork, etc.)
   ============================================ */

/* Icon Button (Header) */
.icon-btn {
  width: 40px;
  height: 40px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s ease;
}

.icon-btn:active {
  background: var(--control-hover);
  transform: scale(0.95);
}

.icon-btn svg {
  width: 22px;
  height: 22px;
}

.icon-btn.active,
.fav-btn.active {
  color: #ff3b30;
}

/* Artwork */
.artwork {
  width: 100%;
  max-width: 280px;
  aspect-ratio: 1;
  background: linear-gradient(145deg, #1a1a2e 0%, #16213e 50%, #0f0f1a 100%);
  border-radius: 20px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.artwork-title {
  color: #fff;
  font-size: 42px;
  font-weight: 700;
  letter-spacing: -1px;
}

.artwork-subtitle {
  color: rgba(255, 255, 255, 0.5);
  font-size: 11px;
  font-weight: 600;
  margin-top: 6px;
  letter-spacing: 2px;
}

/* Progress Bar */
.progress-bar {
  height: 4px;
  background: var(--progress-bg);
  border-radius: 2px;
  cursor: pointer;
  position: relative;
  overflow: visible;
}

.buffer-bar {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  background: rgba(0, 0, 0, 0.04);
  border-radius: 2px;
}

[data-theme="dark"] .buffer-bar {
  background: rgba(255, 255, 255, 0.06);
}

.progress-fill {
  height: 100%;
  background: var(--progress-fill);
  border-radius: 2px;
  width: 0%;
  position: relative;
}

.progress-thumb {
  position: absolute;
  right: -6px;
  top: 50%;
  transform: translateY(-50%);
  width: 14px;
  height: 14px;
  background: var(--text-primary);
  border-radius: 50%;
  opacity: 0;
  transition: opacity 0.15s ease;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
}

.progress-bar:active .progress-thumb,
.progress-bar.dragging .progress-thumb {
  opacity: 1;
}

/* Segment Buttons */
.segment-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 4px 0;
}

.segment-btn {
  width: 36px;
  height: 36px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
  transition: all 0.12s ease;
}

.segment-btn:active {
  transform: scale(0.9);
  opacity: 0.7;
}

.segment-btn.active {
  color: var(--text-primary);
  background: var(--control-hover);
}

/* Control Buttons */
.ctrl-btn {
  width: 52px;
  height: 52px;
  border: none;
  background: transparent;
  color: var(--text-primary);
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.12s ease;
}

.ctrl-btn:active {
  transform: scale(0.9);
  opacity: 0.7;
}

.ctrl-btn svg {
  width: 28px;
  height: 28px;
  fill: currentColor;
}

.ctrl-btn.skip-btn {
  width: 44px;
  height: 44px;
  font-size: 14px;
  font-weight: 600;
}

.ctrl-btn.nav-btn {
  width: 44px;
  height: 44px;
}

.ctrl-btn.nav-btn svg {
  width: 24px;
  height: 24px;
}

.play-btn {
  width: 72px;
  height: 72px;
  background: var(--text-primary);
  color: var(--bg-main);
}

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

[data-theme="dark"] .play-btn {
  color: #000;
}

/* Date Navigation */
.date-nav-btn {
  width: 36px;
  height: 36px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.12s ease;
}

.date-nav-btn:active:not(:disabled) {
  background: var(--control-hover);
  transform: scale(0.95);
}

.date-nav-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.date-nav-btn svg {
  width: 18px;
  height: 18px;
}

.date-picker-btn {
  display: flex;
  align-items: center;
  cursor: pointer;
  padding: 8px 12px;
  border-radius: 8px;
}

.date-picker-btn:active {
  background: var(--control-hover);
}

.date-display {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
}

.date-picker-btn input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

/* Secondary Buttons */
.secondary-btn {
  width: 36px;
  height: 36px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.12s ease;
  position: relative;
}

.secondary-btn:active {
  background: var(--control-hover);
  transform: scale(0.95);
}

.secondary-btn svg {
  width: 18px;
  height: 18px;
}

.secondary-btn.active {
  color: var(--accent);
}

.sleep-countdown {
  font-size: 10px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--accent);
}

/* Popup Overlay */
.popup-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  display: none;
  align-items: flex-end;
  justify-content: center;
  z-index: 100;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.popup-overlay.show {
  display: flex;
}

.popup-content {
  width: 100%;
  max-width: 500px;
  background: var(--player-bg);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border-radius: 16px 16px 0 0;
  border: 1px solid var(--player-border);
  border-bottom: none;
  overflow: hidden;
  animation: slideUp 0.25s ease-out;
  padding-bottom: var(--safe-bottom);
}

@keyframes slideUp {
  from { transform: translateY(100%); }
  to { transform: translateY(0); }
}

.popup-header {
  padding: 20px 20px 16px;
  text-align: center;
  position: relative;
}

.popup-header::before {
  content: '';
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 36px;
  height: 4px;
  background: var(--progress-bg);
  border-radius: 2px;
}

.popup-header h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-primary);
}

/* Volume Slider */
.volume-content {
  padding: 8px 24px 32px;
}

.volume-slider-container {
  display: flex;
  align-items: center;
  gap: 12px;
}

.volume-slider-container svg {
  width: 20px;
  height: 20px;
  color: var(--text-secondary);
  flex-shrink: 0;
}

.volume-slider {
  flex: 1;
  height: 6px;
  background: var(--progress-bg);
  border-radius: 3px;
  cursor: pointer;
  position: relative;
}

.volume-fill {
  height: 100%;
  background: var(--progress-fill);
  border-radius: 3px;
  width: 100%;
}

/* Sleep Options */
.sleep-options {
  padding: 0 0 8px;
}

.sleep-option {
  padding: 16px 24px;
  font-size: 17px;
  color: var(--text-primary);
  cursor: pointer;
  text-align: center;
}

.sleep-option:active {
  background: var(--control-hover);
}

.sleep-option.selected {
  color: var(--accent);
  font-weight: 500;
}

.sleep-option:last-child {
  color: #ff3b30;
}

/* Favorites List */
.favorites-content {
  max-height: 50vh;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.fav-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
  cursor: pointer;
}

.fav-item:active {
  background: var(--control-hover);
}

.fav-item span {
  font-size: 17px;
  color: var(--text-primary);
}

.fav-item-del {
  width: 32px;
  height: 32px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.fav-item-del:active {
  color: #ff3b30;
}

.fav-item-del svg {
  width: 18px;
  height: 18px;
}

.favorites-empty {
  padding: 48px 24px;
  text-align: center;
  color: var(--text-secondary);
  font-size: 15px;
}

/* Install Prompt */
.install-prompt {
  position: fixed;
  bottom: calc(16px + var(--safe-bottom));
  left: 16px;
  right: 16px;
  max-width: 400px;
  margin: 0 auto;
  background: var(--player-bg);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border-radius: 14px;
  border: 1px solid var(--player-border);
  box-shadow: var(--shadow);
  padding: 14px 16px;
  display: none;
  align-items: center;
  gap: 12px;
  z-index: 50;
}

.install-prompt.show {
  display: flex;
}

.install-prompt p {
  flex: 1;
  font-size: 14px;
  color: var(--text-primary);
}

.install-btn {
  padding: 10px 16px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}

.install-close {
  width: 32px;
  height: 32px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Info Options (stesso stile di sleep-options) */
.info-options {
  padding: 0 0 8px;
}

.info-item {
  padding: 16px 24px;
  font-size: 17px;
  color: var(--text-primary);
  text-align: center;
}

.info-item.app-title {
  font-size: 24px;
  font-weight: 700;
  padding-bottom: 8px;
}

.info-item.app-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Toast Notification */
.toast {
  position: fixed;
  top: calc(20px + var(--safe-top));
  left: 16px;
  right: 16px;
  max-width: 400px;
  margin: 0 auto;
  background: var(--player-bg);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border-radius: 12px;
  border: 1px solid var(--player-border);
  box-shadow: var(--shadow);
  padding: 14px 18px;
  font-size: 14px;
  color: var(--text-primary);
  text-align: center;
  z-index: 200;
  opacity: 0;
  transform: translateY(-20px);
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.toast.error {
  border-color: #ff3b30;
}