/* 유튜브 썸네일 추출 — 이 기능의 화면 안에서만 쓰는 스타일.
   모든 선택자는 .thumbnail- 범위다. 독립형 예제의 전역 규칙(body·main·button·input·.row)은
   들여오지 않았다. ERP 전체의 버튼과 입력 모양이 바뀐다. */

.thumbnail-lead {
  margin: 4px 0 18px;
  max-width: 62ch;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.thumbnail-form {
  margin-bottom: 14px;
}

.thumbnail-input-row {
  display: flex;
  gap: 10px;
  align-items: stretch;
}

.thumbnail-input-row input {
  flex: 1;
  min-width: 0;
}

.thumbnail-input-row button {
  flex: 0 0 auto;
  white-space: nowrap;
}

.thumbnail-message {
  margin: 0 0 16px;
  min-height: 20px;
  color: var(--muted);
  font-size: 13px;
}

.thumbnail-message.error {
  color: var(--danger);
  font-weight: 600;
}

.thumbnail-result {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 290px;
  gap: 18px;
  align-items: start;
}

.thumbnail-preview {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 220px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 14px;
  /* 투명한 가장자리나 흰 여백이 있는 썸네일도 경계가 보이도록 어두운 바탕에 올린다. */
  background: #101722;
}

.thumbnail-preview img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 520px;
  object-fit: contain;
}

.thumbnail-panel h3 {
  margin: 0 0 4px;
  font-size: 15px;
}

.thumbnail-sizes {
  display: grid;
  gap: 8px;
  margin: 12px 0 16px;
}

.thumbnail-size {
  display: block;
  width: 100%;
  min-height: 0;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #f6f8fc;
  color: var(--text);
  padding: 10px 12px;
  text-align: left;
  font-weight: 600;
}

.thumbnail-size small {
  display: block;
  margin-top: 3px;
  color: var(--muted);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}

.thumbnail-size[aria-pressed="true"] {
  border-color: var(--blue);
  background: var(--blue-soft);
  color: var(--blue);
}

.thumbnail-size[aria-pressed="true"] small {
  color: inherit;
}

.thumbnail-download {
  width: 100%;
}

.thumbnail-open {
  display: block;
  margin-top: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 11px 16px;
  background: #ffffff;
  color: var(--muted);
  font-weight: 600;
  font-size: 14px;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
}

.thumbnail-open:hover,
.thumbnail-open:focus-visible {
  border-color: var(--blue);
  color: var(--blue);
}

@media (max-width: 720px) {
  .thumbnail-input-row {
    flex-direction: column;
  }

  .thumbnail-result {
    grid-template-columns: 1fr;
  }

  .thumbnail-preview {
    min-height: 150px;
  }

  .thumbnail-sizes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}