.document-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  justify-content: center;
  align-items: stretch;
  padding: clamp(0.5rem, 2vw, 1.25rem);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s ease;
}

.document-overlay--open {
  opacity: 1;
  pointer-events: auto;
}

.document-overlay__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(18, 12, 8, 0.7);
  -webkit-backdrop-filter: blur(5px);
  backdrop-filter: blur(5px);
}

.document-overlay__panel {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  width: min(1200px, 100%);
  height: 100%;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 18px;
  background: var(--bg-page, #f4f1e8);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.34);
}

.document-overlay__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border-subtle, rgba(0, 0, 0, 0.12));
  background: rgba(255, 255, 255, 0.75);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}

.document-overlay__title {
  margin: 0;
  font: inherit;
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--text-main, #2c2416);
}

.document-overlay__close {
  min-height: 40px;
  padding: 0.4rem 0.9rem;
  border: 1px solid var(--border-subtle, rgba(0, 0, 0, 0.12));
  border-radius: 999px;
  background: var(--bg-panel, #fffdf8);
  color: var(--text-main, #2c2416);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.document-overlay__close:hover {
  border-color: var(--link, #722f37);
  color: var(--link, #722f37);
}

.document-overlay__frame {
  flex: 1 1 auto;
  min-height: 0;
  background: #fff;
}

.document-overlay__iframe {
  width: 100%;
  height: 100%;
  border: 0;
  background: #fff;
}

body.document-overlay-open {
  overflow: hidden;
}

@media (max-width: 720px) {
  .document-overlay {
    padding: 0.4rem;
  }

  .document-overlay__panel {
    border-radius: 12px;
  }

  .document-overlay__header {
    padding: 0.7rem 0.8rem;
  }

  .document-overlay__title {
    font-size: 0.9rem;
  }

  .document-overlay__close {
    min-height: 36px;
    padding: 0.35rem 0.75rem;
  }
}