.filter-panel {
  max-width: 1100px;
  margin: 0 auto;
}

#filter-output {
    height: 54px;
    overflow: auto;
    white-space: pre-wrap;
    word-wrap: break-word;
    width: 100%;
    text-align: center;
    box-sizing: border-box;
  }

.calc-card {
  display: flex;
  flex-direction: column;
  gap: 30px;
  /* interactive-card가 padding을 제공하므로 제거 */
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.card-header h3 {
  margin: 0 0 6px;
  font-size: 1.25rem;
}

.card-header p {
  margin: 0;
  color: var(--muted);
}

.field {
    display: flex;
    flex-direction: row;
    gap: 8px;
    width: 100%;
}

.field-label {
    font-weight: 600;
    color: var(--muted);
    font-size: 0.9rem;
    text-align: center;
    line-height: 48px;
}

.text-input,
.num-input,
.color-input,
.field textarea {
  padding: 12px 14px;
  border-radius: 50px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  font-size: 0.95rem;
  width: 100%;
  transition: border-color 0.2s;
}

.text-input:focus,
.num-input:focus,
.color-input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--primary);
}

.color-input {
  padding: 0;
  height: 52px;
  width: 88px;
  border-radius: 12px;
}

.inline-inputs {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
    width: 100%;
}

.input-grid {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 16px;
}

.action-bar {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 18px 20px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  box-shadow: var(--shadow);
}

.action-row {
    display: grid;
    grid-template-columns: auto minmax(280px, 1fr);
    gap: 16px;
    align-items: end;
}

.action-picker {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: fit-content;
}

.action-label {
  font-weight: 700;
  color: var(--muted);
  min-width: 72px;
}

.picker-header {
  display: flex;
  align-items: center;
  gap: 8px;
}

.picker-panel {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.picker-panel--horizontal {
  flex-direction: row;
  gap: 16px;
  align-items: center;
  width: fit-content;
}

.hue-control {
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: 240px;
}

.hue-control--vertical {
  height: 240px;
  width: 44px;
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hue-track {
  width: 32px;
  height: 240px;
  border: 1px solid var(--border);
  background: linear-gradient(180deg, #ff0000 0%, #ffff00 17%, #00ff00 33%, #00ffff 50%, #0000ff 67%, #ff00ff 83%, #ff0000 100%);
}

.hue-thumb {
  position: absolute;
  width: 30px;
  height: 8px;
  border-radius: 2px;
  background: #ffffff;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.35);
  left: 50%;
  transform: translate(-50%, -50%);
}

.hue-slider::-webkit-slider-thumb {
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid #fff;
  background: #111827;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.35);
  cursor: pointer;
}

.hue-slider::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid #fff;
  background: #111827;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.35);
  cursor: pointer;
}

.sv-picker {
  position: relative;
  width: 240px;
  height: 240px;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.sv-picker canvas {
  display: block;
}

.sv-thumb {
  position: absolute;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 2px solid #fff;
  box-shadow: 0 0 0 2px rgba(0, 0, 0, 0.4);
  transform: translate(-7px, -7px);
  pointer-events: none;
}

.picker-indicator {
  display: flex;
  align-items: center;
  gap: 10px;
}


.picker-indicator--large {
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
}

.indicator-label {
  font-size: 0.85rem;
  color: var(--muted);
}

.color-indicator {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #ff6a00;
}

.color-indicator--large {
  width: 240px;
  height: 240px;
  border-radius: 16px;
}

.action-buttons {
  display: grid;
  grid-template-rows: repeat(2, minmax(48px, auto));
  gap: 12px;
  align-content: center;
  padding: 16px;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: var(--surface);
  width: 100%;
  height: 100%;
}

.action-buttons .primary-btn,
.action-buttons .ghost-btn {
  width: 100%;
  padding: 14px 28px;
  font-size: 1rem;
}

.action-status {
  width: 100%;
  min-height: 22px;
  color: var(--muted);
  text-align: center;
}



.status-text {
  font-size: 0.9rem;
  color: var(--muted);
}

.status-text.is-error {
  color: #ff7a7a;
}

.result-grid {
    display: flex;
    flex-direction: column;
    gap: 24px;
    width: 100%;
    align-items: center;
}

.output-field textarea {
  height: 104px;
  resize: none;
}

.loss-field {
  display: none;
  flex-direction: column;
  gap: 8px;
}

.loss-box {
  min-height: 104px;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 14px 16px;
  background: var(--surface-2);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
}

.loss-text {
  font-size: 1.1rem;
  font-weight: 700;
}

.loss-hint {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
}

.preview-card {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px;
  background: var(--surface-2);
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: center;
}

.preview-label {
  font-size: 0.9rem;
  color: var(--muted);
  font-weight: 600;
}

.swatch,
.image-preview {
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: 12px;
  border: 1px solid var(--border);
}

.swatch {
  background: #000;
}

.swatch--filtered {
  background: #000;
}

.image-preview--white {
  background: #ffffff;
}

.image-preview--black {
  background: #000000;
}

@media (max-width: 720px) {
  #filter-output {
    height: 150px;
  }
  .result-grid {
    grid-template-columns: 1fr;
  }

  .action-row {
    grid-template-columns: 1fr;
  }

  .action-buttons {
    grid-template-rows: repeat(2, minmax(48px, auto));
  }

  /* 모바일 색상 선택기 오버플로우 방지 */
  .inline-inputs {
    gap: 6px;
  }

  .color-input {
    width: 68px;
    height: 48px;
  }

  .text-input,
  .num-input {
    font-size: 0.9rem;
    padding: 10px 12px;
  }
  .picker-panel--horizontal {
    display: grid;
    grid-template-columns: auto 2fr;
  }
  .color-indicator {
    height: 20px;
    width: 20px;
  }
}