/* ========================================
   HALFTONE EFFECT
   ======================================== */

/* Mode toggle (Grayscale / CMYK) */
.halftone-mode-group {
  display: flex;
  gap: 2px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 3px;
}

.halftone-mode-btn {
  flex: 1;
  appearance: none;
  background: none;
  border: 1px solid transparent;
  border-radius: 6px;
  padding: 6px 0;
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
  letter-spacing: var(--tracking-tight);
  transition: all 160ms ease;
  text-align: center;
  white-space: nowrap;
}

.halftone-mode-btn:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
}

.halftone-mode-btn.active {
  color: var(--accent);
  background: rgba(171, 255, 203, 0.1);
  border-color: rgba(171, 255, 203, 0.25);
}

/* Hidden native radio inputs */
.halftone-mode-radio {
  position: absolute;
  opacity: 0;
  pointer-events: none;
  width: 0;
  height: 0;
}

/* Presets row */
.halftone-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.halftone-preset-btn {
  appearance: none;
  background: none;
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 0;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0;
  overflow: hidden;
  transition: border-color 160ms ease, transform 120ms ease;
  height: 28px;
}

.halftone-preset-btn:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
}

.halftone-preset-btn:active {
  transform: translateY(0);
}

.halftone-preset-bg,
.halftone-preset-dot {
  display: block;
  width: 16px;
  height: 100%;
  flex-shrink: 0;
}

.halftone-preset-bg {
  border-radius: 20px 0 0 20px;
}

.halftone-preset-dot {
  border-radius: 0 20px 20px 0;
}

.halftone-preset-label {
  font-size: 0.6rem;
  font-weight: 600;
  color: var(--muted);
  padding: 0 8px;
  white-space: nowrap;
  letter-spacing: 0.02em;
}

.halftone-preset-btn:hover .halftone-preset-label {
  color: var(--text);
}

/* CMYK progress indicator */
.halftone-cmyk-hint {
  font-size: 0.68rem;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 6px 10px;
  line-height: 1.5;
  text-align: center;
}