/* ===== Solo Body ===== */
body {
  padding: 0;
}
body > *:not(.header-row):not(.account-overlay):not(.rotate-disclaimer):not(.fullscreen-container) {
  margin-left: var(--space-6);
  margin-right: var(--space-6);
}

/* ===== Preview Section Override ===== */
.preview-section {
  position: relative;
}

/* ===== Instrument Grid (Solo) ===== */
.instrument-grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-2);
}
.instrument-item {
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  background: var(--color-surface);
  transition: all var(--transition-normal);
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  user-select: none;
}
.instrument-item:hover {
  border-color: var(--color-brand-500);
  background: var(--color-brand-50);
}
.instrument-item.selected {
  border-color: var(--color-success-500);
  background: var(--color-success-50);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
  color: var(--color-success-800);
  font-weight: 600;
}

/* ===== Solo Timer Box ===== */
#soloTimerBox {
  margin-top: var(--space-4);
  text-align: center;
}

/* ===== Timer Display (Solo) ===== */
.timer-display {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 700;
  color: #ffffff;
  background: var(--gradient-brand);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  display: inline-block;
  margin-bottom: var(--space-2);
  border: 2px solid var(--color-brand-600);
}

/* ===== Timer Buttons ===== */
.timer-btn {
  padding: var(--space-2) var(--space-4);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-weight: 600;
  margin: 0 var(--space-1);
  transition: transform var(--transition-fast);
}
.timer-btn:hover {
  transform: translateY(-1px);
}
.timer-btn.start {
  background: var(--color-success-500);
  color: #ffffff;
}
.timer-btn.stop {
  background: var(--color-error-600);
  color: #ffffff;
}

/* ===== PDF Download Button ===== */
.pdf-download-btn {
  position: absolute;
  top: var(--space-4);
  right: 64px;
  width: 40px;
  height: 40px;
  background: var(--gradient-success);
  border: none;
  border-radius: var(--radius-md);
  color: #ffffff;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-success);
  transition: all var(--transition-normal);
  font-size: 18px;
  z-index: 10;
}
.pdf-download-btn.visible {
  display: flex;
}
.pdf-download-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.4);
}
.pdf-download-btn:active {
  transform: translateY(0);
}

/* ===== Solo Media Query ===== */
@media (max-width: 640px) and (orientation: portrait) {
  .rotate-disclaimer {
    display: block;
  }
  body {
    padding-bottom: 80px;
  }
}