/* ========================================
   LOMO / CROSS-PROCESS EFFECT
   ======================================== */

/* Preset Cards */
.lomo-presets {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.lomo-preset-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
  text-align: left;
  width: 100%;
  font-family: var(--font-body);
}

.lomo-preset-card:hover {
  border-color: var(--line-strong);
  color: var(--text);
  background: rgba(255, 255, 255, 0.03);
}

.lomo-preset-card.active {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(171, 255, 203, 0.08);
}

.lomo-preset-preview {
  width: 48px;
  height: 48px;
  border-radius: 6px;
  overflow: hidden;
  flex-shrink: 0;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.lomo-preset-preview canvas {
  display: block;
  width: 48px;
  height: 48px;
}

.lomo-preset-name {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  line-height: 1.3;
}

/* Curve Editor */
.lomo-curve-wrap {
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: #111820;
}

.lomo-curve-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 8px;
  border-bottom: 1px solid var(--line);
}

.lomo-channel-group {
  display: flex;
  gap: 2px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 2px;
}

.lomo-channel-btn {
  appearance: none;
  background: none;
  border: 1px solid transparent;
  border-radius: 4px;
  padding: 3px 10px;
  font-size: 0.68rem;
  font-weight: 700;
  cursor: pointer;
  font-family: var(--font-body);
  transition: border-color 0.15s, color 0.15s, background 0.15s;
  letter-spacing: 0.02em;
  color: var(--muted);
}

.lomo-channel-btn:hover {
  color: var(--text);
}

.lomo-channel-btn.active {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--line);
}

.lomo-channel-btn[data-channel="R"].active {
  color: #ff4444;
  background: rgba(255, 68, 68, 0.12);
  border-color: rgba(255, 68, 68, 0.3);
}

.lomo-channel-btn[data-channel="G"].active {
  color: #44ff44;
  background: rgba(68, 255, 68, 0.12);
  border-color: rgba(68, 255, 68, 0.3);
}

.lomo-channel-btn[data-channel="B"].active {
  color: #4488ff;
  background: rgba(68, 136, 255, 0.12);
  border-color: rgba(68, 136, 255, 0.3);
}

.lomo-curve-channel-label {
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.lomo-curve-canvas {
  display: block;
  width: 100%;
  height: 180px;
  cursor: crosshair;
}

.lomo-curve-hint {
  padding: 4px 8px;
  font-size: 0.65rem;
  color: var(--muted);
  border-top: 1px solid var(--line);
  text-align: center;
  opacity: 0.7;
}

/* Vignette Shape Buttons */
.lomo-shape-group {
  display: flex;
  gap: 2px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 3px;
}

.lomo-shape-btn {
  flex: 1;
  appearance: none;
  background: none;
  border: 1px solid transparent;
  border-radius: 6px;
  padding: 6px 0;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
  font-family: var(--font-body);
  transition: border-color 0.15s, color 0.15s, background 0.15s;
  letter-spacing: 0.01em;
}

.lomo-shape-btn:hover {
  color: var(--text);
  border-color: var(--line);
}

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