.prototype-page {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

.prototype-page > .nav {
  flex-shrink: 0;
}

.prototype-main {
  display: flex;
  flex: 1;
  padding: 24px clamp(20px, 4vw, 48px);
}

.prototype-frame {
  display: block;
  width: 100%;
  height: max(560px, calc(100dvh - 230px));
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--paper);
  box-shadow: 0 8px 24px rgb(12 46 34 / 5%);
}

@media (max-width: 640px) {
  .prototype-main {
    padding: 16px 12px;
  }

  .prototype-frame {
    border-radius: 8px;
    height: 70dvh;
    min-height: 480px;
  }
}