/* ============================================================
   merge.css — /merge (엔트리 작품 합치기) 페이지 전용.
   header/푸터(disclaimer) chrome은 common.css 재사용.
   컴포넌트 스타일은 extensions/entry-merge-extension/css/style.css 에서
   이식하되, 광고/외부 홍보(.tools-family-link·.footer·.version-badge)는 제외.
   ============================================================ */

:root {
  --entry-green: #32D27D;
  --entry-blue: #5096F5;
  --entry-purple: #6E5AE6;
  --entry-red: #FA5536;
  --bg-light: #f8fafd;
  --text-sub: #666;
  --text-muted: #999;
}

/* ---------- 페이지 카드 (헤더 아래 중앙 정렬) ---------- */
.container {
  background: #fff;
  border-radius: 20px;
  box-shadow: 0 8px 32px rgba(110, 90, 230, 0.08), 0 2px 8px rgba(0, 0, 0, 0.04);
  padding: 36px;
  max-width: 600px;
  width: calc(100% - 32px);
  margin: 36px auto;
  border-top: 4px solid;
  border-image: linear-gradient(90deg, var(--entry-green), var(--entry-blue), var(--entry-purple)) 1;
}

h1 {
  text-align: center;
  font-size: 1.6rem;
  margin-bottom: 8px;
  background: linear-gradient(135deg, var(--entry-blue), var(--entry-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.subtitle {
  text-align: center;
  color: var(--text-sub);
  font-size: 0.9rem;
  margin-bottom: 6px;
}
.limit-info {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.78rem;
  margin-bottom: 24px;
}

/* ---------- 드롭존 ---------- */
.drop-zone {
  border: 2px dashed #b8cfe8;
  border-radius: 14px;
  padding: 40px 20px;
  text-align: center;
  cursor: pointer;
  transition: all 0.25s;
  background: var(--bg-light);
  margin-bottom: 16px;
}
.drop-zone:hover, .drop-zone.drag-over {
  border-color: var(--entry-blue);
  background: #edf4fe;
  box-shadow: 0 0 0 4px rgba(80, 150, 245, 0.1);
}
.drop-zone p { color: var(--text-sub); font-size: 0.95rem; }
.drop-zone .icon { font-size: 2rem; margin-bottom: 8px; }
.drop-zone:focus-visible {
  outline: 3px solid var(--entry-blue);
  outline-offset: 2px;
}
input[type="file"] { display: none; }

/* ---------- 파일 목록 ---------- */
.file-list { list-style: none; margin-bottom: 8px; }
.file-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 14px;
  background: var(--bg-light);
  border-radius: 8px;
  margin-bottom: 6px;
  font-size: 0.9rem;
  border-left: 3px solid var(--entry-green);
}
.file-list li.over-size { background: #fff5f3; border-left-color: var(--entry-red); }
.file-list li .name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-list li .size { color: #888; margin-left: 12px; white-space: nowrap; }
.file-list li.over-size .size { color: var(--entry-red); font-weight: 600; }
.file-list li .remove {
  margin-left: 10px;
  background: none;
  border: none;
  color: var(--entry-red);
  cursor: pointer;
  font-size: 1.1rem;
  line-height: 1;
  padding: 2px 6px;
  border-radius: 4px;
}
.file-list li .remove:hover { background: #ffebe8; }
.total-size { text-align: right; font-size: 0.82rem; color: #888; margin-bottom: 16px; }
.total-size.over { color: var(--entry-red); font-weight: 600; }

/* ---------- 합치기 버튼 ---------- */
#mergeBtn {
  width: 100%;
  padding: 14px;
  border: none;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--entry-blue), var(--entry-purple));
  color: #fff;
  font-size: 1.05rem;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.25s;
  box-shadow: 0 4px 14px rgba(110, 90, 230, 0.25);
}
#mergeBtn:disabled { background: #c8d0dc; box-shadow: none; cursor: not-allowed; }
#mergeBtn:not(:disabled):hover {
  background: linear-gradient(135deg, #3d82e8, #5c48d4);
  box-shadow: 0 6px 20px rgba(110, 90, 230, 0.35);
  transform: translateY(-1px);
}

/* ---------- 기타 설정 ---------- */
.extra-toggle {
  font-size: 0.72rem;
  color: #bbb;
  cursor: pointer;
  background: none;
  border: none;
  margin-top: 8px;
  font-family: inherit;
  display: inline-block;
}
.extra-toggle:hover { color: #999; }
.extra-settings {
  display: none;
  margin-top: 8px;
  padding: 10px 14px;
  background: var(--bg-light);
  border-radius: 8px;
  text-align: left;
}
.extra-settings.show { display: block; }
.extra-settings label {
  font-size: 0.82rem;
  color: var(--text-sub);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 4px 0;
}
.extra-settings input[type="checkbox"] { accent-color: var(--entry-purple); }

/* ---------- 상태 메시지 ---------- */
.status { text-align: center; margin-top: 14px; font-size: 0.9rem; min-height: 1.2em; }
.status.error { color: var(--entry-red); }
.status.success { color: var(--entry-green); }
.status.loading { color: var(--entry-purple); }

/* ---------- 안내 ---------- */
.merge-note {
  margin-top: 18px;
  text-align: center;
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.6;
}
.merge-note code {
  background: var(--bg-light);
  padding: 1px 5px;
  border-radius: 4px;
  font-size: 0.95em;
}
.merge-note a { color: var(--entry-purple); text-decoration: none; }
.merge-note a:hover { text-decoration: underline; }

/* ---------- 진행 오버레이 ---------- */
.progress-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  z-index: 2000;
  justify-content: center;
  align-items: center;
  padding: 20px;
}
.progress-overlay.show { display: flex; }
.progress-box {
  background: #fff;
  border-radius: 16px;
  padding: 32px 28px 24px;
  max-width: 380px;
  width: 100%;
  text-align: center;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
  animation: popIn 0.25s ease-out;
}
@keyframes popIn {
  from { transform: scale(0.9); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}
.progress-box .progress-icon { font-size: 2.5rem; margin-bottom: 12px; }
.progress-box .progress-msg {
  font-size: 0.95rem;
  color: var(--text-sub);
  line-height: 1.6;
  margin-bottom: 18px;
  min-height: 1.6em;
  word-break: break-all;
}
.progress-bar-wrap {
  width: 100%;
  height: 8px;
  background: #e8e8e8;
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 12px;
}
.progress-bar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--entry-blue), var(--entry-purple));
  border-radius: 4px;
  transition: width 0.3s;
}
.progress-box .progress-pct { font-size: 0.85rem; font-weight: 600; color: var(--entry-purple); }
.progress-box .progress-close {
  display: none;
  width: 100%;
  margin-top: 14px;
  padding: 10px;
  border: none;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  background: linear-gradient(135deg, var(--entry-blue), var(--entry-purple));
  color: #fff;
  box-shadow: 0 3px 10px rgba(110, 90, 230, 0.25);
  transition: all 0.2s;
}
.progress-box .progress-close:hover {
  background: linear-gradient(135deg, #3d82e8, #5c48d4);
  transform: translateY(-1px);
}

/* ---------- 반응형 ---------- */
@media (max-width: 480px) {
  .container { padding: 24px 18px; border-radius: 14px; margin: 16px auto; }
  h1 { font-size: 1.3rem; }
  .drop-zone { padding: 28px 14px; }
  .progress-box { padding: 24px 18px 18px; }
}