.video-modal-open {
  overflow: hidden;
}

.video-modal {
  position: fixed;
  z-index: 200;
  inset: 0;
  display: grid;
  place-items: center;
  padding: clamp(1rem, 4vw, 3rem);
  background: rgb(11 7 18 / .84);
}

.video-modal[hidden] {
  display: none;
}

.video-modal-dialog {
  width: min(100%, 62rem);
  max-height: 100%;
  overflow: auto;
  border: 1px solid rgb(143 216 255 / .58);
  background: linear-gradient(145deg, var(--dusk), var(--night) 68%);
  box-shadow: 0 1.5rem 5rem rgb(0 0 0 / .55), 0 0 2.5rem rgb(77 141 255 / .2);
}

.video-modal-header,
.video-modal-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .75rem;
}

.video-modal-header {
  justify-content: space-between;
  padding: 1rem 1.1rem;
  border-bottom: 1px solid var(--line);
}

.video-modal-title {
  margin: 0;
  font-family: var(--mincho);
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  line-height: 1.5;
}

.video-modal-close,
.video-modal-open-youtube {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: auto;
  min-height: 2.45rem;
  padding: .45rem .8rem;
  border: 1px solid var(--line);
  color: var(--paper);
  background: transparent;
  font: inherit;
  font-size: .82rem;
  font-weight: 700;
  text-decoration: none;
}

.video-modal-close:hover,
.video-modal-open-youtube:hover {
  border-color: var(--kitsunebi);
  color: var(--kitsunebi);
}

.video-modal-frame {
  position: relative;
  aspect-ratio: 16 / 9;
  background: #05030a;
}

.video-modal-frame iframe,
.video-modal-demo {
  width: 100%;
  height: 100%;
  border: 0;
}

.video-modal-demo {
  display: grid;
  place-items: center;
  align-content: center;
  gap: .8rem;
  padding: 1rem;
  background:
    radial-gradient(circle at 50% 42%, rgb(143 216 255 / .24), transparent 19%),
    radial-gradient(circle at 52% 60%, rgb(77 141 255 / .16), transparent 37%),
    linear-gradient(145deg, #171335, #080613 72%);
  text-align: center;
}

.video-modal-demo-mark {
  display: grid;
  place-items: center;
  width: clamp(3rem, 8vw, 5rem);
  aspect-ratio: 1;
  border: 1px solid rgb(143 216 255 / .8);
  border-radius: 50%;
  color: var(--kitsunebi);
  box-shadow: 0 0 2rem rgb(77 141 255 / .58);
  font-size: clamp(1.2rem, 3vw, 2rem);
  text-indent: .12em;
}

.video-modal-demo p {
  margin: 0;
  color: var(--paper);
  font-size: clamp(.78rem, 2vw, .95rem);
}

.video-modal-actions {
  justify-content: flex-end;
  padding: 1rem 1.1rem;
  border-top: 1px solid var(--line);
}

.video-modal-open-youtube[aria-disabled="true"] {
  cursor: default;
  opacity: .45;
}

[data-video]:not(.content-card)::before {
  display: inline-grid;
  place-items: center;
  width: 1.2em;
  height: 1.2em;
  margin-right: .35em;
  border: 1px solid currentColor;
  border-radius: 50%;
  content: "▶";
  font-size: .68em;
  line-height: 1;
  vertical-align: .04em;
}

.content-card[data-video] .card-no::after {
  display: inline-grid;
  place-items: center;
  width: 1.35em;
  height: 1.35em;
  margin-left: .55em;
  border: 1px solid currentColor;
  border-radius: 50%;
  content: "▶";
  font-size: .78em;
  line-height: 1;
  vertical-align: .06em;
}

@media (max-width: 700px) {
  .video-modal {
    padding: .65rem;
  }

  .video-modal-dialog {
    width: 100%;
  }

  .video-modal-header,
  .video-modal-actions {
    padding: .8rem;
  }
}