/* Floating Controls */
.floating-controls {
  position: fixed;
  top: max(20px, env(safe-area-inset-top, 20px));
  right: max(20px, env(safe-area-inset-right, 20px));
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.floating-btn,
.logo-toggle,
.history-toggle {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
  border: 1px solid var(--glass-border);
  transition: all var(--transition-medium);
}

.logo-toggle {
  background: linear-gradient(180deg, #1a1a1a, #0d0d0d);
}

.history-toggle {
  background: linear-gradient(180deg, #1a1a1a, #0d0d0d);
}

.logo-toggle:hover,
.history-toggle:hover,
.floating-btn:hover {
  transform: translateY(-2px) scale(1.05);
  border-color: rgba(99, 102, 241, 0.2);
  box-shadow: inset 1px 1px 2px rgba(255, 255, 255, 0.02),
    0 6px 20px rgba(99, 102, 241, 0.12);
}

@media (max-width: 768px) {
  .floating-controls {
    top: 5px;
    right: 10px;
    gap: 6px;
  }

  .floating-btn,
  .logo-toggle,
  .history-toggle {
    width: 40px;
    height: 40px;
  }
}

.floating-btn:active {
  transform: translateY(0) scale(0.98);
}

.model-btn {
  background: linear-gradient(180deg, #1e1e1e, #0f0f0f);
}

.params-btn {
  background: linear-gradient(180deg, #1a1a1a, #0d0d0d);
}

/* Parameter cards */
.params-card-stack {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.params-card {
  width: 100%;
  margin: 5px 0;
  padding: 20px;
  border-radius: 18px;
  background: linear-gradient(#ffffff, #f3eee0) padding-box,
    var(--silver) border-box;
  border: 1px solid transparent;
  box-shadow: 0 10px 24px var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.params-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 32px var(--shadow-strong);
}

.params-card__header {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.params-card__title {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent-contrast);
}

.params-card__subtitle {
  margin: 0;
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

.params-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px 12px;
}

.param-control {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.param-control label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.slider-container {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(76, 52, 255, 0.06);
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid rgba(76, 52, 255, 0.12);
}

.slider-container input[type="range"] {
  flex: 1;
  accent-color: var(--accent-contrast);
}

.slider-value {
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  color: var(--accent-contrast);
  min-width: 52px;
  text-align: right;
}

.params-card--prompt .system-prompt-editor {
  min-height: 180px;
  width: 100%;
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: #ffffff;
  color: var(--text-main);
  font-size: 0.95rem;
  line-height: 1.5;
  resize: vertical;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.05);
}

.params-card--prompt .system-prompt-editor:focus {
  outline: none;
  border-color: var(--accent-contrast);
  box-shadow: 0 0 0 3px rgba(76, 52, 255, 0.18);
}

.prompt-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
}

@media (max-width: 640px) {
  .params-card {
    padding: 16px;
    max-width: calc(100% - 6px);
  }

  .params-grid {
    grid-template-columns: 1fr;
  }
}