/* 이미지 → Base64 변환 전용 스타일 */

nav { max-width: 980px; }
main { max-width: 980px; }

.subtitle {
  color: var(--text-sub);
  margin-bottom: 1.25rem;
}

/* 드롭존 */
.dropzone {
  background: var(--surface);
  border: 2px dashed var(--border);
  border-radius: 12px;
  padding: 2.5rem 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
  margin-bottom: 1.25rem;
}

.dropzone:hover, .dropzone:focus, .dropzone.drag-over {
  border-color: var(--primary);
  background: rgba(102, 126, 234, 0.04);
}

.dropzone.drag-over {
  transform: scale(1.01);
}

.dz-text {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.dz-icon {
  font-size: 2.5rem;
}

.dz-line {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
}

.dz-sub {
  font-size: 0.78rem;
  color: var(--text-sub);
}

/* 결과 */
.result {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-bottom: 1.5rem;
}

.meta-row {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.85rem 1rem;
}

.meta-block {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.meta-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-sub);
}

.preview {
  background: repeating-conic-gradient(rgba(0,0,0,0.04) 0% 25%, transparent 0% 50%) 50% / 16px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.5rem;
  width: 140px;
  height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.preview img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.meta-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.meta-list li {
  display: grid;
  grid-template-columns: 80px 1fr;
  font-size: 0.85rem;
  align-items: baseline;
}

.meta-list li span {
  color: var(--text-sub);
  font-weight: 500;
}

.meta-list li strong {
  color: var(--text);
  font-weight: 600;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.85rem;
  word-break: break-all;
}

/* 출력 */
.output {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
}

.output-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0.85rem;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.output-label {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-sub);
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

.action-btn {
  padding: 0.4rem 0.85rem;
  font-size: 0.78rem;
  font-weight: 600;
  background: var(--surface);
  color: var(--text-sub);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s;
}

.action-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.action-btn.primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.action-btn.primary:hover {
  filter: brightness(1.08);
  color: #fff;
}

.output-code {
  margin: 0;
  padding: 0.85rem 1rem;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.78rem;
  line-height: 1.55;
  background: var(--surface);
  color: var(--text);
  white-space: pre-wrap;
  word-break: break-all;
  max-height: 200px;
  overflow-y: auto;
}

@media (max-width: 600px) {
  .meta-row { grid-template-columns: 1fr; }
  .preview { width: 100%; height: 160px; }
  .output-code { font-size: 0.72rem; padding: 0.7rem 0.85rem; max-height: 160px; }
}